Sk75ur-3e_sk130ur-1e Hanbook

SERVICEMAN HANDBOOK

YR05-05301~ YX 03-01601~

Book code No.S7YO00207ZE01 No.S7YO 00207ZE01

2002.08 (K.E) J 2005.03 (K.E) E

Copyright Copyright © 2015 Kobelco Kobelco Construction Machinery Co.,Ltd. Co.,Ltd. All rights reserved. [S7Y [ S7YO00 O00207Z 207ZE01] E01] [0604CsCshWbYs] shWbYs]



SK75UR-3E SK130UR-1E -1E

CONTENTS 1. DIMENSIONS IN TRANSPORTA TRANSPORTATION ····································· ·················· ······································ ······································· ······················ 1 2. MACHINE SPECIFICATIONS ······································ ··················· ······································· ········································ ································· ············· 2 3. COMPONENT COMPONE NT SPECIFICATIONS ······································ ··················· ······································· ········································ ·························· ······ 3 3-1 ENGINE SPECIFICATIONS ······································· ···················· ······································· ········································ ··························· ······· 3 3-2 HYDRAULIC COMPONENTS ······································ ·················· ········································ ········································ ························· ····· 6 3-3 CONTROL CURVE OF PUMP ··············································· ··························· ········································ ··································· ··············· 8 3-4 HYDRAULIC CYLINDER ······································ ·················· ······································· ······································· ········································ ························· ····· 11 4. PERFORMANCE PERFORMANCE ················· ························· ················· ················· ················· ·················· ················· ················· ················· ················· ·················· ············· ···· 13 4-1 PERFORMANCE LIST ······································· ···················· ······································· ········································ ································· ············· 13 4-2 NOISE LEVEL ······································· ··················· ······································· ······································· ········································ ··························· ······· 13 5. WEIGHT OF COMPONENTS COMPONENTS ················· ························· ················· ················· ················· ················· ················· ················· ················· ············· ···· 15 6. SPECIFIED SPECIFIED OIL, GREASE AND FILTER FILTER ELEMENT········ ELEMENT ················· ················· ················· ·················· ················· ··········· ··· 17 6-1 LUBRICANT LIST ······································ ·················· ········································· ········································· ········································ ······················ 17 6-2 FILTER FILTER ELEMENTS LIST ····································· ·················· ······································· ········································ ······························· ··········· 18 7. CAB, CANOPY INTERFERENCE PREVENTION SYSTEM ·········································· ······························· ··········· 20 7-1 OUTLINE OF MECHATRO MECHATRO SYSTEM ······································· ··················· ········································ ······························· ··········· 20 7-2 OUTLINE AND SWITCHES ········································ ···················· ······································· ······································· ·························· ······ 24 7-3 INSTALLATION INSTALLATION AND CONSTRUCTION OF ANGLE SENSOR ······························ ·························· ···· 29 7-4 PROCEDURE TO RELEASE CAB INTERFERENCE PREVENTION FUNCTION ···· 36 7-5 INDICATOR INDICATOR ADJUSTMENT PROCEDURE ·········································· ······················ ······································ ·················· 37 7-6 INSPECTION OF ELECTRIC PARTS PARTS ···················································· ································ ····································· ················· 38 8. PRESSURE AND PERFORMANCE STANDARD STANDARD ················································ ···························· ······························ ·········· 40 8-1 STANDARD STANDARD FOR HYDRAULIC OIL PRESSURE MEASUREMENT ······················ 40 8-2 ENGINE SPEED MEASUREMENT ······································ ·················· ········································ ··································· ··············· 46 8-3 TEST PROCEDURES ········································ ···················· ········································ ······································· ································· ·············· 47 9. PERFORMANCE STANDARD STANDARD TABLE ·············································· ·························· ······································· ····························· ·········· 55 10. HYDRAULIC HYDRAULIC CIRCUIT DIAGRAM ················ ························ ················· ················· ················· ················· ················ ················· ················ ······· 60 11. ELECTRIC CIRCUIT DIAGRAM ········································ ·················· ··········································· ·········································· ························ ··· 64 12. MECHATRO MECHATRO CONTROL SYSTEM ··············································· ··························· ········································ ·································· ·············· 74 13. DIMENSION OF ATT TTACHMENT ACHMENT ······································· ···················· ······································· ········································ ·························· ······ 84 Copyright Copyright © 2015 Kobelco Kobelco Construction Machinery Co.,Ltd. Co.,Ltd. All rights reserved. [S7Y [ S7YO00 O00207Z 207ZE01] E01] [0604CsCshWbYs] shWbYs]

SK75UR-3E SK130UR-1E

14. MAINTENANCE STANDARD ························································································· 93 14-1 CLEARANCE BETWEEN PIN AND BUSHING ····················································· 93 14-2 CLEARANCE IN THRUST DIRECTION ································································ 96 14-3 TYPE AND DIMENSION OF PIN ··········································································· 98 14-4 TYPE AND DIMENSION OF BUSHING ······························································ 102 14-5 UNDERCARRIAGE ····························································································· 105 15. WORKING RANGE ······································································································· 112 16. LIFTING CAPACITIES ·································································································· 115 17. TOOLS & JIGS ············································································································· 117 18. SOME CONVERSION UNITS ······················································································ 128

Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S7YO00207ZE01] [0604CsCshWbYs]


1. DIMENSIONS IN TRANSPORTATION

Q U

P

N

V O

R

S

T

W

M B

* H , H

I

F

K

G

E

J

C D

L

A

Unit : mm Code A B C D E Model SK75UR-3E 6,180 4,300 2,250 2,870 1,880 SK130UR-1E 7,440 5,130 2,900 3,570 2,310

F

G

470

770 2,600 2,550

2,270 2,320

450

570

910 2,730

2,550 2,490

500

Code Model SK75UR-3E SK130UR-1E

Q

R

L

M

N

O

P

H*

S

I

T

J

K

U

V

L

W

400 2,170

145 1,045 1,330

690

115 R1160 R1160

2,320 5,460

455 2,410

200 1,165 1,180

590

170 R1360 R1385 R1375 2,490 6,515

Note) * marks show the canopy specification.

– 1 – Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S7YO00207ZE01] [0604CsCshWbYs]


2. MACHINE SPECIFICATIONS Model

SK75UR-3E

SK130UR-1E

0.28

0.45

km/h (low/high)

3.2/5.8

3.8/6.4

km/h (low/high)

3.1/5.5

3.5/6.0

min-1 {rpm}

12.5 {12.5}

11.7 {11.7}

% (degree)

70 (35)

70 (35)

kN {kgf}

52.9 {5,400}

87.3 {8,900}

kN {kgf}

39.2 {4,000}

61.9 {6,310}

1,760

2,200

Item Heaped capacity of bucket

e Travel speed

Rubber crawler

Iron crawler c n a Slewing speed m r o Gradeability f r e Bucket P Digging force Arm

Arm length

mm

Rubber crawler

Machine weight

Iron crawler Rubber crawler

Upper structure

Iron crawler

t h g i e WUnder

Rubber crawler

carriage Iron crawler Attachment Canopy ground pressure Cab ground pressure Model

m3

Canopy

kg

7,550

-

Cab

kg

7,640

13,400

Canopy

kg

7,600

-

Cab

kg

7,690

13,400

Canopy

kg

3,250

-

Cab

kg

3,340

5,970

Canopy

kg

3,250

-

Cab

kg

3,340

5,970

Canopy

kg

2,780

-

Cab

kg

2,780

4,950

Canopy

kg

2,830

-

Cab

kg

2,830

4,950

kg

1,520

2,480

Rubber crawler

kPa {kgf/cm2}

34.3 {0.35}

Iron crawler

kPa {kgf/cm 2}

34.3 {0.35}

-

Rubber crawler

kPa {kgf/cm2}

34.3 {0.35}

41 {0.42}

Iron crawler

kPa {kgf/cm 2}

34.3 {0.35}

42 {0.43}

ISUZU CC-4JG1

ISUZU BB-4BG1T

40.5/2,100 {55/2,100}

62.9/2,050 {85.5/2,050}

188/1,800 {19.2/1,800}

312.6/1,600 {31.9/1,600}

3.059

4.329

4-95.4 X 107

4-105 X 125

226 {116}

234 {172}

85

160

Output rating

kW/min-1 {PS/rpm} N.m/min-1 {kgf .m/rpm}

e Maximum torque n i g Total displacement n E Number of cylinders-Bore X Stroke Fuel consumption rate

L

mm g/kW.h {g/PS.h}

Fuel tank capacity

? t Hydraulic pump n e n Setting pressure MPa {kgf/cm2} o p Slewing motor m o Travel motor c . d Control valve y H Hydraulic tank capacity/systm capacity

L

Variable displacement axial Variable displacement axial piston + gear pump piston + 2 gear pumps 29.4 {300}

34.3 {350}

Axial piston

2-speed variable axial piston 7-spool (Multiple) L

55/70

94/140



3. COMPONENT SPECIFICATIONS 3-1 ENGINE SPECIFICATIONS

Model Applicable machine Engine model

SK75UR -3E

SK130UR-1E

YR05-05301~

YX03-01601~

ISUZU CC-4JG1 ISUZU BB-4BG1T Vertical, 4-cycle Vertical, 4-cycle water-cooled water-cooled diesel engine, diesel engine, in line, direct in line, direct injection injection, with turbocharger mm X mm 4 X 95.4 X 107 4 X 105 X 125

Type No. of cylinders-Bore X Stroke Total displacement

cc

3,059

4,329

18.2

18.0

kW/min -1 {PS/rpm} N.m/min -1 {kgf .m/rpm}

40.5/2,100 {55.0/2,100}

62.0/2,050 {85.5/2,050}

187/1,800 {19.2/1,800}

312.6/1,600 {31.9/1,600}

Low idling

min-1 {rpm}

1,000 ± 20 {1,000 ± 20}

High idling

2,320 ± 25 {2,320 ± 25}

2,350 ± 20 {2,350 ± 20}

Fuel consumption rate

min-1 {rpm} g/kW.h {g/PS.h}

226 {166}

234 {172}

Allowable tilting angles

degree

Compression ratio Rated output Maximum torque

Back and forth, left and right 35 Counterclockwise as seen from fly wheel side

Rotating direction Firing order

1-3-4-2

Fuel injection timing

b.T.D.C : degree MPa {kgf/cm2}

Fuel injection pressure

17 ± 1

9.0 ± 1

18.1 {185}

18.14 {185}

Open Valve action

Valve clearance Thermostat action

degree

Close

Open

Close

Intake valve

b.T.D.C. 24.5 a.B.D.C. 55.5 b.T.D.C. 19

a.B.D.C. 47

Exhaust valve

b.B.D.C. 54.0 a.T.D.C. 26.0 b.B.D.C. 57

a.T.D.C. 15

0.4 at cool

mm Intake valve Exhaust valve ˚C

0.4 at cool 82/95

Compression pressure MPa {kgf/cm2} at min-1 {rpm}

2.94 {30} at 200

3.04 {31} at 200

Lubrication oil pressure MPa {kgf/cm2} at min-1 {rpm}

-

-

760 X 620 X 710

900 X 690 X 865

240

368

Dimensions L X W X H

mm

Dry weight

kg

Governor

Bosch type

Fuel filtration

Paper elment type

Lubrication system

Forced lubrication system

Lubricant filtration

Full-flow paper element type

Cooling system Starter capacity Generator capacity

Fan size

ø450 suction type, 7-blades ø550 suction type, 8-blades

Rotation ratio

V-belt drive, rotation ratio 1.12 V-belt drive, rotation ratio 0.89

V X kW

24 X 3.2

24 X 4.5

VXA

24 X 30

24 X 50

-

-

Starting aid Cooling water capacity : Engine

L

5.0

8.5

Engine oil volume : Max/Effective

L

9.6/7.6

13.2/11



Engine performance curves (ISUZU CC-4JG1) Accessories : Fan, Generator, without Air cleaner and Muffler N.m 200

kgf .m 20

Shaft Torque 19 180

18 17

PS kW

160

50

e u q r o T t f a h S

16

60 40

Power output

50 t u p t u O r e 40 w o P

30

30 g/kW.h

20

g/PS.h e 200 t

260 20

Fuel Consumption Rate 10

240

180

220

160

200

10

2320 ± 25rpm

1200

1400

1600

1800

2000

2200

140

a R n o i t p m u s n o C l e u F

2400

Engine speed rpm

F:Fuel consumption rate (g/PS .h) P: Shaft output (PS) : Standard load factor (0.65 ~ 0.75) : Specific gravity Fuel consumption in normal operation : 7.1~8.2 L/h {load factor : (0.65~0.75)}

F XPX X 1000 166 = X 55 X 0.835 X 1000 = 10.9 .L/h

Fuel consumption =



Engine performance curves (ISUZU BB-4BG1T) Accessories : Fan, Generator, without Air cleaner and Muffler 340 Shaft Torque

320 300 280

312.6±20Nm/about1600min-1 (31.9±2.0kgf .m/about1600rpm)

34 32 30 28

e u q r o T t f a h S

26 N.m kgf .m

PS kW 80 100

80 t u p t u O 60 r e w o P

Power output

60

40

280

40

260 20

Fuel Consumption Rate

240

210 190 170 150

e t a R n o i t p m u s n o C l e u F

220 g/kW.h g/PS.h

20

1000

1500

2000

2500

Engine speed rpm

F : Fuel consumption rate (g/PS .h) P: Shaft output (PS) : Standard load factor (0.65 ~ 0.75) : Specific gravity Fuel consumption in normal operation : 11.4~13.2 L/h {load factor : (0.65~0.75)}

F XPX X 1000 172 = X 85.5 X 0.835 X 1000 = 17.6 .L/h

Fuel consumption =


SK75UR-3E

3-2 HYDRAULIC COMPONENTS

Model

Item Type Main Pump

Displacement Working pressure Delivery flow Use Displacement Working pressure Delivery flow

p m u Gear p c Pump i l u a r d Rated revolution y H

Weight Oil quantity in pump

cc/rev MPa {kgf/cm2} L/min cc/rev MPa {kgf/cm2} L/min min-1 {rpm} kg L

Function of regulator Type Main relief valve setting pressure l o e r MPa {kgf/cm2} t v (Attachment, Travel) n l o a v Over load relief valve setting pressure C (ORV-A2,A3,A5,B2,B3,B5,C3,D3) MPa {kgf/cm2} Pilot pressure (MAX) MPa{kgf/cm2} Type e v r l MPa{kgf/cm2} a e Working pressure v z MPa{kgf/cm2} l o Max. pressure o r D Rated flow L/min t r n o 2 o f Allowable back pressure (Service) MPa{kgf/cm } C Weight kg Slewing unit Type Hydraulic motor Reduction unit r Working pressure MPa{kgf/cm2} o t o Reduction ratio m Output torque N.m {kgf .m} g n Braking torque N.m {kgf .m} i w Brake releasing pressure MPa{kgf/cm2} e l S Rotation direction(Seeing from shaft end) Weight (with reduction unit) kg Lubricant of reduction unit L Grease cc Type Displacement per stroke (high/low) cc/rev Rotating speed (high/low) min-1 {rpm} Hydraulic Working pressure MPa {kgf/cm2} r motor High speed switching pressure MPa {kgf/cm 2} o t o Oil volume L/min m l Output torque N .m{kgf .m} e v Reduction Rotating speed min-1 {rpm} a r Reduction ratio T unit Lubricant volume L . . N m{kgf m} Parking Regulating torque brake Brake releasing pressure MPa {kgf/cm2} Total weight kg

SK75UR -3E K3P36B-101R-2001 31.4 X 2 29.4 {300} 66 X 2 for Pilot (Pf) for Dozer (P3) 9.5 23.1 3.4 {35} 19.6 {200} 20 48.5 2100 (Clockwise rotation as seen from shaft), Hi idle : 2310 44 1 Total power shift, Air-con power shift, Third pump power shift control BCV75-A3-1 29.4{300} at 28L/min 32.9{355} at 20L/min 3.9{40} KVS-65-1 19.6{200} at 50L/min 24.5{250} 52 0.3 {3.5} 5 SG025E-126 MFB40-330 RG025S-155-52 24.5 {250} 1: 15.54 2,320{236} at 250kgf/cm 2 185 {18.9} 2.0 {20}, Allowable pressure3.9 {40} A port in: CW, B port in: CCW 67 Nippon Oil Co., Gearlub SP90 : 1.5 Shell Albania EP2 : 150 GM09VN-B-19/34-1 34.4/19.1 1,877/3,312 29.4 {300} 3.4 {35} 65 8,532/4,629 {870/472} 30.5 {53.8} 1: 61.6 SAE#90 GL-4 : 1.3 97{9.9} 0.5{4.8} 81


SK130UR-1E

Item

Model

Item Type Displacement cc/rev p -1 Rated revolution min {rpm} m u Working pressure MPa {kgf/cm2} p L/min c Max. flow i l u Max. input power kw {PS} a r Max. input torque N .m {kgf .m} d y Type H Regulator Function of regulation Others Relief valve setting pressure MPa {kgf/cm2} Type l o L/min r e Max. flow t v Max. pressure MPa {kgf/cm2} n l o a v Main releif valve setting pressure MPa {kgf/cm2} C Over load relief valve setting pressure MPa {kgf/cm2} Type e MPa {kgf/cm2} v r Main relief valve pressure l a e Over load releif valve pressure (A1, B1 port) MPa {kgf/cm2} v z l o MPa {kgf/cm2} o D Working pressure r t r Rated flow L/min n o o f Allowable back presure (Service) MPa {kgf/cm2} C Weight kg Type Displacement per stroke cc/rev Working pressure MPa {kgf/cm2} Braking torque N.m {kgf.m} Hydraulic Brake releasing pressure (Stroke end)MPa {kgf/cm2} Relief setting pressure MPa {kgf/cm2} r motor o t Weight kg o Type m g Reduction ratio n Reduction i w unit Lubricant e l S

Lubricant volume L Grease Grease amount cm 3 Weight kg Capacity (Displacement X Reduction ratio) cm3 Total weight kg Type Displacement per stroke (high/low)cc/rev Hydraulic Rotating speed (high/low) min -1 {rpm} motor Working pressure MPa {kgf/cm 2}

r o t High speed switching pressure MPa {kgf/cm2} o Rotating speed min -1 {rpm} m l e Reduction Reduction ratio v a Lubricant r unit T Lubricant volume L

N .m{kgf .m} Parking Regulating torque brake Brake releasing pressure MPa {kgf/cm2} Total weight kg

SK130UR-1E Main pump

Pilot gear pump Dozer gear pump K3V63DTP101R-0E02 ZX10LPRZ2-06D SGP1A25 51.2 X 2 (in running: 57.6) 10 24.9 2,050 (Clockwise rotation as seen from shaft) 34.3 {350} 4.9 {50} 20.6 {210} 105 X 2 (in running: 118) 20.5 52.3 62.5 {85} (including gear pump 3.2 {4.3}) 291.3 {29.7} (including gear pump 14.7 {1.5}) KR36-0E02 Positive electrical flow control With electro-magnetic proportional reducing 34.3 {350} 5.0 {51} 20.6 {210} KMX13YC/B33031-10 118 X 2 37.8 {385} 34.3 {350} (60 L/min) 37.8 {385} (30 L/min) KVS-65-1 20.6 {210} at 50 L/min 27.5 {280} at 30 L/min 24.5 {250} 52 0.3 {3.5} 5 M2X63CHB-13A-07/285-60 60 28.0 {285} 314 {32} 2.3 {23} ~ 4.9 {50} 28.0 {285} at 105 L/min 34 RG06D19G3 1 : 19.2 SAE#90~#140, API service GL3 or 4 (At shipping : Shell 90EP) 1.7 EP type grease (Shell Albania EP2) 500 75 1,152 109 GM18VL2-K-33/56-10 32.7/55.8 2072/3464 34.32 {350} 1.96~6.86 {20~70} 31.4/52.5 1 : 66 Gear oil SAE #90 GL4 2.5 178 {18.2} 0.78 {8} 144


SK75UR-3E

3-3 CONTROL CURVE OF PUMP 1) SK75UR-3E

Models SK60SR -1E Standard specification (Spec. 1) A/C power cut pressure Pf = 0k (0 psi) ) r a e g f o e u q r o t n ) i o t m p . f m g u k ( s n n o i T c e e h u t e q r d o u t l t c n u i p t ' n n I s e o d e u q r o t s i h T (

n i m / L e t a r w o l f y r e v i l e D

Delivery pressure

Pd1+Pd2 kgf/cm2 2 Models SK75UR -3E (Spec. 2) SK60SR -1E Dozer spec. A/C power cut pressure Dozer pump pressure

a

Pf=0K

P3=20K

b

Pf=35K

P3=20K

c

Pf=0K

P3=200K

d

Pf=35K

P3=200K ) m . f g k ( n i T e u q r o t t u p n I

n i m / L e t a r w o l f y r e v i l e D

Delivery pressure

Pd1+Pd2 kgf/cm2 2


SK130UR-1E

2) SK130UR-1E (1) At H mode

( T ra v el)

I n d e p e n d e n t l o a H d i n g I n d m o ( P e p d e 2 = 5 e n d e k , n t Q m l o a i n ) H d i n g m o ( P d e 2 = 5 k , Q m i n ) T r av e l s i m u l t an A T e o T s u s i mu l o a d l t a n i n g e o u s l o a d i n g

( AT T)

100

) n i m / L ( Q e t a r50 w o l f 40 y r e v i l30 e D

Min f low H mode

20 10 0

50

100

(2) At S mode

150 200 Delivery pressure Pd (kgf/cm 2)

250

300

350

( T ra v el) ( AT T )

100


Min f low S mode

T r a v e l o r A T T i n d e p e n d e n t l o a T r a d i n v e g S l o r A m o T T d e s i m u l t a n e o u s l o a d i n g S m o d e

20 10 0

50

100

150 200 Delivery pressure Pd (kgf/cm 2)

250

300


350

SK130UR-1E

(3) At FC mode

100

(Travel)

( AT T)


Min f low FC mode

20

T r av e l o r A T T i n d e p e n d e n t l o a d i n g F T r a C m v e l o d o r A e T T s im u l ta n e o u s l o a d i n g F C m o d e

10 0

50

100

150 200 Delivery pressure Pd (kgf/cm2)

250

300


350


3-4 HYDRAULIC CYLINDER Boom, Bucket, Off-set and Dozer cylinder

A

B

R 2

E C

1 F

2 F

R 1

d2

d1

G

H

Arm cylinder

A' A

B

1 F 2 E C F

R 1 d2 d1

G



Unit : mm Model

SK75UR-3E

Applicable cylinder

Parts No.

A

A'

B

Boom

YR01V00017F1

1,417

-

941

115

70

142

131

95

Arm

YR01V00018F1

710

105

70

-

126

95

Bucket

YT01V00019F2

1,120

735

80

55

102

93

85

85

Off-set

YR01V00019F1

954

564

100

60

124

114

95

95

Dozer

YT01V00020F1

690

-

150

120

70

-

144

80

80

1,525

-

1,025

105

70

155

123

80

90

965

115

80 193.5

139

100

Boom

SK130UR-1E

SK75UR-3E

YX01V00003F1

ØF1

ØF2

G

H 95

-

YX01V00004F1

Bucket

YX01V00005F3

1,365

885

95

65

145

111

90

90

Off-set

YX01V00008F1

1,050

510

105

70

155

123

100

100

220

110

65 152.4

126

90

90

R.H. YX01V00006F1 L.H.

Applicable cylinder

YX01V00007F1

Parts No.

370 1,432

660

R1

Boom

YR01V00017F1

72

Arm

YR01V00018F1

65

Bucket

YT01V00019F2

50

Off-set

YR01V00019F1

Dozer

YT01V00020F1

Boom

SK130UR-1E

L.H.

ØE

Arm

Dozer

Model

R.H. YX01V00002F1

300 1,124

ØC

R.H. YX01V00002F1 L.H.

YX01V00003F1

-

R2 65

Ød1

Ød2

Weight Cushion mechanism Remarks kg Rod side Head side

75

75

97

65

70

93

43

50

50

48

55

47

55

55

53

62

65

70

70

55

75

72.5

80

80

109

-

75

75

144

-

Arm

YX01V00004F1

70

Bucket

YX01V00005F3

55

55

60

60

81

Off-set

YX01V00008F1

65

65

70

70

81

60

60

57

Dozer

R.H. YX01V00006F1 L.H.

YX01V00007F1

60

-

-

Note : Rod and head side of Boom & Arm cylinders equip electronic cushions. And rod side of Off-set cylinder equips electronic cushion.



4. PERFORMANCE 4-1 PERFORMANCE LIST

Item

Earth : Soft soil Dump truck loading by 90˚ slewing (Start to dig from ground level) Attachment digging force

Slewing speed min-1 {rpm}

Travel speed High/Low km/h

SK75UR-3E

12.5 {12.5}

5.3/3.1

SK130UR-1E

11.7 Rubber crawler: 6.4/3.8 {11.7} Iron crawler: 6.0/3.5

Machine

Item

Fuel consumption g/kW.h

Workload m3/h

Traction Gradeability Arm kN % (Arm length) {ton} {deg} m kN {kgf}

Bucket kN {kgf}

52.0 {5.3}

70 {35}

39.2 {4,000} (1.76m)

52.9 {5,400}

100.0 {10.2}

70 {35}

61.9 {6,310} (2.2m)

87.3 {8,900}

Cycle time 90˚ slewing sec

Machine

S

H

S

H

S

H

SK75UR-3E

-

7.2

-

59

-

17.0

SK130UR-1E

-

13.0

-

162

-

13.1

Remarks

Note : Standard type SK130UR-1E equips the iron crawler.



4-2 NOISE LEVEL

Y

Microphone (2)

(1), (2) (5) (5) r

1.5m

m 1 0

r X

Z

(6) (6) (4)

(3)

(3), (4)

Measuring range Noise level Item Model SK75UR-3E SK130UR-1E

Ambient noise value (Dynamic) Sound power level 98 99

Evaluated value Machine operation Ground condition

Machine

Back hoe

Measuring position (positon of microphone) Unit : dB Close to operator's ear (High idling at no load) Cab door closed 75 74

New standard Calculated sound power level by measured noise level from six directions Simulation (Digging) On concrete

Rated output (kW)

New standard Noise level 99dB 104 106 106

Measurement condition

Simulation (Digging)


SK75UR-3E

5. WEIGHT OF COMPONENTS SK75UR-3E

Unit : kg Model Specif icati on Item Complete Machine 1. Upper Structure (Assy of followings) 1.1 Upper frame 1.2 Counterweight Counterweight (Add-on type) 1.3 Canopy/Cab 1.4 Engine 1.5 Hydraulic tank 1.6 Fuel tank 1.7 Slewing motor (with reduction) 1.8 Control valve 1.9 Boom cylinder 1.10 Pin (for Boom installation 2pcs.) 1.11 Hydraulic pump 1.12 Radiator 2. Undercarriage (Assy of followings) 2.1 Lower frame 2.2 Slewing bearing 2.3 Travel motor (with reduction) 2.4 Upper roller 2.5 Lower roller 2.6 Front idler 2.7 Idler adjuster 2.8 Sprocket 2.9 Swivel joint 2.10 Dozer blade 2.11 Dozer cylinder 2.12 450mm Rubber shoe 2.13 450mm Track link with shoes 600mm Track link with shoes 2.13.1 Track link assy 3. Attachment (Assy of followings) 3.1 Boom assy (Assy of followings) Rear boom + front boom + upper boom 3.1.1 3.1.2 Arm cylinder 3.1.3 Off-set cylinder 3.2 Arm assy (Assy of followings) 3.2.1 Arm 3.2.2 Bucket cylinder 3.2.3 Idler link 3.2.4 Bucket link 3.3 0.28m3 Bucket assy 4. Fluid, Water (Assy of following) 4.1 Hydraulic oil 4.2 Engine oil 4.3 Fuel 4.4 Water (coolant)

SK75UR-3E Cab Rubber crawler Iron crawler 7,640 7,690 3,340 770 1,100 400 185 240* 64* 46* 67 50 97* 10 48 43

Canopy (Option) Rubber crawler Iron crawler 7,550 7,600 3,250

95

2,780 800 115 90 X 2 4X2 15 X 10 44 X 2 28 27 21 280 55* 410 X 2

2,830

2,780

2,830

-

420 X 2 530 X 2 160 X 2

-

420 X 2 530 X 2 160 X 2

1,520 1,060 800 96* 53* 260 160 44* 6X2 8X2 200 200 47 3 70 5

Note : * show a dry weight.


SK130UR-1E

SK130UR -1E

Unit : kg Item Complete Machine

Model Specif icati on

SK130UR-1E Iron crawler 13,400

1. Upper Structure (Assy of followings) 1.1 Upper frame 1.2 Counterweight 1.3 Cab 1.4 Engine 1.5 Hydraulic tank 1.6 Fuel tank 1.7 Slewing motor (with reduction) 1.8 Control valve 1.9 Boom cylinder 1.10 Pin (for Boom installation) 1.11 Hydraulic pump 1.12 Radiator

5,970 1,300 2,180 185 368* 91* 53* 110 120 122* X 2 23 94 77

2. Undercarriage (Assy of followings) 2.1 Lower frame 2.2 Slewing bearing 2.3 Travel motor (with reduction) 2.4 Upper roller 2.5 Lower roller 2.6 Front idler 2.7 Idler adjuster 2.8 Sprocket 2.9 Swivel joint 2.10 Dozer blade 2.11 Dozer cylinder 2.12 500mm Rubber shoe 2.13 500mm Track link with shoes 2.13.1 Track link assy

4,950 1,560 149 144 X 2 8X2 27 X 12 70 X 2 57 X 2 36 X 2 63 460 57* X 2

3. Attachment (Assy of followings) 3.1 Boom assy (Assy of followings) Rear boom + front boom + upper boom 3.1.1 3.1.2 Arm cylinder 3.1.3 Off-set cylinder 3.2 Arm assy (Assy of followings) 3.2.1 Arm 3.2.2 Bucket cylinder 3.2.3 Idler link 3.2.4 Bucket link 3.3 0.45m3 Bucket assy

2,480 1,620 1,180 *154 *81 496 285 *92 12 X 2 43 340

4. Fluid, Water (Assy of following) 4.1 Hydraulic oil 4.2 Engine oil 4.3 Fuel 4.4 Water (coolant)

-

730 X 2 290 X 2

Rubber crawler

760 X 2

-

300 138 11 133 18

Note : * show a dry weight.



6. SPECIFIED OIL, GREASE AND FILTER ELEMENT 6-1 LUBRICANT LIST

Select the suitable lubricant for ambient temperature of your site. Components

Type of lubricant

Capacities SK75UR-3E Tank :

Tank :

55 L Total system : 78 L

94 L Total system : 160 L

Hydraulic tank

Hydraulic oil

Engine oil pan

Engine oil

H : 9.6 L L : 7.6 L

H : 13 L L : 11 L

Fuel tank

Diesel fuel

85L

160 L

Radiator : Radiator (Reservoir)

Coolant (LLC)

SK75UR-3E : Nippon oil co., Gearlub SP90 SK130UR-1E : Travel motor SAE #90 GL-4 Slewing motor

Upper roller Lower roller

Specified lubricant

SK130UR-1E

KW68 KW46 KOBELCO genuine parts KW32S A.P.I. classification for "service CD"

Radiator :

3.9 L Total volume : 10 L

KOBELCO antifreeze (If commercial 8.5 L is used, the mixing rate of the LLC Total volume : should conform with the specified.) 18 L

1.5 L

1.7 L

1.3 L x 2

2.5 L X 2

20 cc Engine oil

Idler Attachment and Dozer blade Slewing bearing Idler adjuster Grease

90 cc

150 cc

150~160 cc

200cc

25 points 4 points

6 points

1 point 2 points

Operating lever

As required

Slewing gear

5 kg

6.4 kg

A.P.I. classification for "service CD"

Extreme pressure Multipurpose grease N.L.G.I. No.2 Lithium base grease EP type Cartridge : 2421Z183 Pail can : 2421Z213 N.L.G.I. No.2 Lithium base with MoS2 grease

Note : Machines are shipped from factory with ISO VG46 for hydraulic oil and with SAE 10W-30 for engine oil.

Note : USE OF BIO-DEGRADABLE OILS When you use Bio-degradable Oil (BIO OIL), refer to the following information. 1. There are two types of BIO OIL available; vegetable-based and synthetic-based. You are recommended to use the synthetic-based type, because the vegetable-based oil has a maximum usage temperature of 80˚C {176˚F}. Because of this, the degradation of vegetable-based oil occurs more rapidly, and causes reduced service life. 2. Do not mix either type of BIO OIL with the original factory-filled mineral oil, in the case that you do use BIO OIL, it is required to flush the hydraulic system that was filled with BIO OIL three times. 3. If you use BIO OIL, slewing and propel parking brake performance will be reduced, because of the lower friction factor of BIO OIL compared to that of mineral oil. 4. For further information about recommended Bio-degradable oil, please contact our distributor.


SK75UR-3E

6-2 FILTER ELEMENTS LIST SK75UR-3E

11

2

4

1

3

6

12

10 9 7

8 (R.H)

5

8 (L.H)

8

Filter elements, Side cutters, Teeth, Pins and O-ring

No. Device 1 2 Hydraulic oil filter 3 4 5 Air cleaner 6

Engine oil filter

7

Fuel filter

8

9

10 11 12

Parts No. YR50V00004P1 ZD11G15500 YT50V00001F1 ZD11G15500 LE11P00002S002 894430-9831

894414-7963 YR20M00013S024 YR20M00013S025 Air conditioner YR20M00013S023 Side cutter (R.H) 2412N279D1 Side cutter (L.H) 2412N279D2 (Capscrew) ZS13C20045 (Nut) ZN13C20016 Tooth (Center) B12P0015E1 Tooth (Right and left) 2412U111S1 B12P0015E2 (Locking pin) (Rubber lock) B12P0015E3 Pin YT12B01113P1 O-ring 2445Z912

Qty Parts Name Replacement Interval Return filter (STD) 1 After 50 hours (initial change) (O-ring) 1 Every 500 hours (from 2nd. change) Suction strainer 1 Every 2000 hours (O-ring) 1 Element 1 After cleaning of 6th time or an elapse of 1 year After 50 hours (initial change) Cartridge 1 Every 500 hours (from 2nd. change) Cartridge 1 Every 500 hours Filter (R.H) 1 After cleaning of 10th time or heavy Filter (Center) 1 clogging Filter (L.H) 1 1 1 Heavy worn 6 6 2 2 Hole or crack is appeared 4 4 2 Exceeding the limit of clearance 4 Deformed or worn

Note : Items enclosed in parenthesis ( ) are the pars to be changed at the same time


SK130UR-1E

SK130UR-1E

4

2

3

1 Full flow

Bypass

11

6

12

9

10 7

8 (R.H)

5

8 (L.H)

8

Filter elements, Side cutters, Teeth, Pins and O-ring

No. Device 1 2 Hydraulic oil filter 3 4 5 Air cleaner 6 7 8

9

10 11 12

Parts No. YR50V00004P1 ZD11G15500 YW50V00004F5 ZD11G20000 LP11P00004S002 897026-1342 Engine oil filter 894160-9641 Fuel filter 897172-5490 YR20M00013S024 Air conditioner YR20M00013S025 YR20M00013S023 Side cutter (R.H) 2412N278D11 Side cutter (L.H) 2412N278D21 (Capscrew) ZS13C20050 (Nut) ZN13C20016 Tooth (Center) 2412U16S1 Tooth (Right and left) 2412U112S1 (Locking pin) B12P0015E2 (Rubber lock) B12P0015E3 Pin YY12B01242P1 O-ring 2445Z912

Parts Name Return filter (STD) (O-ring) Suction strainer (O-ring) Element Cartridge (bypass) Cartridge (full flow) Cartridge Filter (R.H) Filter (Center) Filter (L.H)

Qty 1 1 1 1 1

Replacement Interval After 50 hours (initial change) Every 500 hours (from 2nd. change) Every 2000 hours

After cleaning of 6th time or an elapse of 1 year After 50 hours (initial change) 1 Every 500 hours (from 2nd. change) 1 Every 500 hours 1 After cleaning of 10th time or heavy 1 clogging 1 1 1 Heavy worn 8 8 2 2 Hole or crack is appeared 4 4 2 Exceeding the limit of clearance 4 Deformed or worn

Note : Items enclosed in parenthesis ( ) are the pars to be changed at the same time


SK75UR-3E

7. CAB, CANOPY INTERFERENCE PREVENTION SYSTEM 7-1 OUTLINE OF MECHATRO SYSTEM SK75UR-3E Pilot valve for Attachment

t u e c v l 2 a P v e v l a v x m u l f o o n o B c

m r A

g n i w e l S

l e v a r t t f e L

l e v a r t t h g i R

e v l a v t h g i a r t s

l e v a r T

P1

Low pressure sensor

(SE7)

P1 Arm in propo. A1 valve (PSV-1)

(SE3)

P3 Boom up propo. A3 valve (PSV-3)

(SE11)

P5 Off-set left propo. A5 valve (PSV-5)

e v l a v x u l f n & t o u c c 1 m r P A

t e s f f O

P2

Pump

(PSV-B) P2 cut propo. valve

Off-set pilot valve

m o o B

t e k c u B

(PSV-D) P1 cut & Arm conflux valve

Potentio meter (SE19) Pilot signal processing Pilot signal processing Pilot signal processing Pilot signal processing (SE18)

(SE17)

Cab interference prevention

Arm in

Boom up Mechatro controller (C-1)

Pi

Pilot signal processing

d n a m m o c d e e p s T T A

Far Near Distance from ATT and Cab


SK75UR-3E

CAB INTERFERENCE PREVENTION SYSTEM (SK75UR -3E) Note : The contents in para. 1), 2) and 3), are in common to the concerned sections (Boom up, Arm in, Off-set left).

1) The potentiometer output voltages for boom, arm and off-set operations are input to mechatro controller. 2) The mechatro controller detects that any of boom, arm and off-set are entered in interference area with each potentiometer output voltage. 3) And simultaneously detects the ATT position and speed, and outputs command to proportional valves for boom up, arm in and off-set left to gradually stop the movement in the interference area, according to respective command. (1) Boom up

4) The boom up proportional valve controls the proportional valve secondary pressure according to command output by mechatro controller; consequently the conflux valve of boom main spool and boom on the control valve starts returning. 5) Simultaneously changes value of command to P2 cut proportional valve according to the controlled boom up pilot secondary pressure. 6) And P2 cut proportional valve controls the proportional valve secondary pressure to the pressure corresponding to the command output by mechatro controller. 7) The boom main spool and boom conflux valve, and P2 cut proportional valve are switched by mechatro pressure command, consequently cylinder supply flow rate is gradually reduced during boom up operation in the range of boom up interference area, and ATT smoothly stops. (2) Arm in

4) The arm in proportional valve controls proportional valve secondary pressure according to command output by mechatro controller, consequently the arm main spool on the control valve starts returning. 5) Simultaneously changes values of command to P1 cut valve & Arm conflux valve and P2 cut proportional valve according to the controlled arm in pilot secondary pressure. 6) And P1 cut valve & Arm conflux valve and P2 cut proportional valve control the proportional valve secondary pressure to the pressure corresponding to the command output by mechatro controller. 7) The arm main spool and P1 cut & Am conflux valve and P2 cut proportional valve are switched by mechatro pressure command, consequently cylinder supply flow rate is gradually reduced during arm in operation in the range of arm in interference area, and ATT smoothly stops. (3) Off-set left

4) The off-set left proportional valve controls proportional valve secondary pressure according to command output by mechatro controller; consequently the off-set main spool on the control valve starts returning. 5) The off-set main spool is switched by mechatro pressure command, consequently cylinder supply flow rate is gradually reduced during off-set left operation in the range of off-set left interference area, and ATT smoothly stops.


SK130UR-1E

SK130UR -1E

Pilot valve for Attachment

R.H

L.H

t u e c v l 1 a P v e v l a v

t e m k o c o u B B

t h g i r l e v a r T

e v l a v t l h e i g v a a r r t T s

t f e l l e v a r T

g n i w e l S

e l n b o i t a i a r l a u v c e r i l v m c r a e A r v

e v l a v x u l m f o n o o B c

t u e c v l 2 a P v

m r A

t e s f f O

x u l

f m r n o A c

Low pressure sensor

(SE7)

(SE3)

Off-set pilot (SE11) valve

P1

Arm in propo. valve (PSV-1)

A5

P3

Boom up propo. valve (PSV-3)

A3

P1

Off-set left propo. valve (PSV-5)

A1

P5

P2

Pump

P2 cut propo. valve (PSV-B)

Potentio meter (SE19) (SE18)

(SE17)

P1 pump P2 pump propo. valve propo. valve (PSV-P1) (PSV-P2)

Pilot signal processing Pilot signal processing Pilot signal processing Pilot signal processing Pilot signal processing Pilot signal processing

Cab interference prevention

Arm in

Off-set left

Boom up

P1 pump

P2 pump

Mechatro controller (C-1)

mA

Regarding P1, P2 pump and cut valve processing, these are omitted because they are common to other control.

Pilot signal processing

, k e t c v o l n l e a b v r r e . u v o c l d a p n v o a . r p o m h p c o m r a o P e c e c n t e r n e i e c o f r n p e r e t g n f e n i i t a r r n e e t a o r n t N a I s

Interference area Distance from ATT to Cab

m u m i n i M


SK130UR-1E

CAB INTERFERENCE PREVENTION SYSTEM (SK130UR -1E) Note : The contents in para. 1), 2) and 3), are in common to the concerned sections (Boom up, Arm in, Off-set left).

1) The potentiometer output voltages for boom, arm and off-set operations are input to mechatro controller. 2) The mechatro controller detects that any of boom, arm and off-set are entered in interference area with each potentiometer output voltage. 3) And simultaneously detects the ATT position and speed, and outputs command to proportional valves for boom up, arm in and off-set left to gradually stop the movement in the interference area, according to respective command. (1) Boom up

4) The boom up proportional valve controls the proportional valve secondary pressure according to command output by mechatro controller; consequently the conflux valve of boom main spool and boom on the control valve starts returning. 5) Simultaneously changes values of command to P1 and P2 pumps, and P2 cut proportional valve according to the controlled boom up pilot secondary pressure. 6) And P1 and P2 pumps, and P2 cut proportional valve control the proportional valve secondary pressure to the pressure corresponding to the command output by mechatro controller, and reduce the deliveries of P1 and P2 pumps. 7) The boom main spool and boom conflux valve, and P2 cut proportional valve are switched by mechatro pressure command and changes the deliveries of P1 and P2 pumps, consequently cylinder supply flow rate is gradually reduced during boom up operation in the range of boom up interference area, and ATT smoothly stops. (2) Arm in

4) The arm in proportional valve controls proportional valve secondary pressure according to command output by mechatro controller, consequently the arm main spool on the control valve starts returning. 5) Simultaneously changes values of command to P2 pump and P2 cut proportional valve according to the controlled arm in pilot secondary pressure. 6) And P2 pump and P2 cut proportional valve control the proportional valve secondary pressure to the pressure corresponding to the command output by mechatro controller, and reduce the delivery of P2 pump. 7) The arm main spool and P2 cut spool are switched by mechatro pressure command and change P2 pump delivery, consequently cylinder supply flow rate is gradually reduced during arm in operation in the range of arm in interference area, and ATT smoothly stops. (3) Off-set left

4) The off-set left proportional valve controls proportional valve secondary pressure according to command output by mechatro controller; consequently the off-set main spool on the control valve starts returning. 5) The off-set main spool is switched by mechatro pressure command, consequently cylinder supply flow rate is gradually reduced during off-set left operation in the range of off-set left interference area, and ATT smoothly stops.



7-2 OUTLINE AND SWITCHES 1. Functions 1) Cab/canopy interference prevention function 2) Height/depth display function 3) Height limitation function 4) Depth limitation function 5) Off-set L/H limitation function

When attachment is closing to cab/canopy, it will be stopped automatically. In order to operate the interference prevention system in safety, keep the following caution.

•If the machine is started operating without warming up in cold weather, the auto stop position of the cab interference preventive equipment may shift. So don’t fail to warm up after starting the engine. •When checking the function of the cab interference preventive equipment, operate the lever slowly.

Sensor (Off-set) •Never remove and attach and disassemble to repair the sensor. It may cause the malfunction of the interference preventive equipment. Would you please contact KOBELCO distributor. •When the sensor is struck and external flaw is found, check the auto stop operating condition. When failure is detected, would you please contact KOBELCO distributor for checking and repair.

Sensor (Arm)

Sensor (Boom)

• Never immerse the sensor in water during work. Should the sensor be immersed, check the auto stop operating condition. If failure is found, contact KOBELCO distributor. 22

2. Cab interference prevention system (1) Operation When the engine key is turned to ON or START position, the right display appears. And this display indicates the live function of cab interference prevention system. This function is activated every time you turn on the engine key.

CAB

NO MEDDL'G PREVENT Display

INTERFERENCE PREVENTION AREA (SIDE)

A

B 500mm

3. Movement of “A”, “B” areas

(1) Movement of “B” area When attachment is closing to cab, and bucket teeth enter warning area “B”, operator will be noted by intermitted warning buzzer and machine speed will be reduce.

200mm

Cab (Canopy)

(2) Movement of “A” area. When bucket teeth is closing to stop area “A”, operator will be noted by continuous warning buzzer, and machine is automatically stopped. Warning buzzer will be stopped after 5 seconds.

B A

NOTE

• Travel/slewing/dozer blade/off-set (R.H) are not automatically stopped. Off-set (L.H) will be automatically stopped +400 mm. When bucket is closing to 300 mm, arm in and boom up will be automatically stopped. • All figures are calculated based on arm top pin position. Therefore it is changed the bucket position.

INTERFERENCE PREVENTION AREA (FRONT)

Safety area 300mm 800mm



(3) Release of automatic stop function

1) When operator want to close attachment to cab, push the release switch “R” on the right control lever. Then operator can move the attachment even though stop area “A”. While pushing this switch, monitor displays

2) When operate toward safety side, it is not necessary to push release switch “R”. Move the attachment till warning buzzer disappears.

3. Height/depth limitation device

(1) The multidisplay of the gauge cluster on the right front of the operator’s seat indicates the depth, height and left off-set distance, and the depth, height

8

and off-set left limit functions and those conditions. Read the depth, height and off-set left limit setting and releasing method carefully.

MULTI DISPLAY (LCD)

7

2

(2) Switches

1) Multi display (LCD)

1

2) Setting switch

8

3) Height limitation set switch

5

4) Depth limitation set switch 5) Depth limitation set change switch (Down/up) 6) Off-set left limitation set switch 7) Reset switch

3

4

6

8) LED (Red) (Light Emitting Diode)



1) Screen change switch After starting engine, the display changes as follows by every pressing of screen change switch.

DEPTH + 0.0m

ARM TOP PIN

2) Base level setting switch This switch is used to set the present height of the arm top to “0”. The height of the arm top pin when SET this switch was pressed is the base level.

BOOM FOOT PIN

a DISPLAYED VALUE

Display DEPTH

0.0m

3) Height limitation setting switch This switch is used to set the height limitation. The highest position when this HEIGHT switch was pressed is the limit height.

BOOM FOOT PIN DISPLAY

Display 23

HEIGHT

3.5 m

NOTE When LED is on, the height limit functions. Press the switch once more time and the height limit is released.

When the attachment comes close to the preset height, the operation stops automatically. This system enables work to be done near houses and electric wires safely and smoothly. Height and depth display

a) When new machine is delivered and the “RESET” switch is pressed, the boom foot pin is considered as a base level. b) Move the arm top pin position to the position where the depth display is required to set to “0” (Base level). c) Press “SET” switch, and the value 0.0m is displayed on the multidisplay. d) Turn on the attachment function, and the depth from the arm top pin when the “SET” switch was pressed is displayed. e) When it is necessary to change the base position, adjust the arm top position to the base position required to change to and press the “SET” switch again.



4) Depth limitation setting switch This switch is used to set the depth limitation. The arm top pin position when this switch was pressed is the DEPTH limit depth.

BOOM FOOT PIN

DISPLAY

Display 24

DEPTH

-2.0 m

NOTE When LED is on, the depth limit is in function. Press the switch one more again, and the depth limit is released.

DEPTH LIMITATION

When the bucket comes close to the preset depth, the operation stops automatically. By making sure of the places where the underground materials are in advance, this system enables work to be done close to gas pipes and water pipes in safety and smoothly. Example of operation When it is necessary to display the digging depth, place the bucket on the flat ground and press the “SET” switch. When machine is “A” position, the digging depth can be recognized by setting the arm top pin position to “0” and reading the indicated value (in “B” position). However, if the bucket is not on the same condition (a=b) as the preset base level, it may be impossible to read the accurate depth. 5) Depth limitation variable setting switch This switch is used to change the value of the “DEPTH” limit, and the limit depth becomes larger at 0.2m intervals by every pressing of the “UP” switch, and becomes smaller at 0.2m intervals by every pressing of the “DOWN” switch.

6) Off-set L/H limitation set switch This switch is used to set the offset left limit. The arm top pin position when this switch was pressed OFF-SET is limit off-set toward the left s ide. LEFT When the bucket comes close to the preset off-set distance, the operation stops automatically. This system enables you to position it to the same position securely in the off-set operation. Display 25

OFFSET LEFT

1.0 m



7) Reset switch

This switch is used to reset the base

RESET

level, height limit, depth limit and off-set left limit. Press the reset switch, and the base level is initialized.

8) LED (Light Emitting Diode)

This LED goes on when the setting functions of height limit, depth limit

HEIGHT

and off-set left limit are on.

SUPPLEMENTARY EXPLANATION

•The preset level is not released even if the starter switch is “OFF”. • When the operation stops due to the height limit, only the boom up and arm out operations stop.

A PIN

(3) Boom off-set pedal

Pedal B (Depress heel side) A (Depress toe side) Off-set leftwards

Off-set rightwards

(4) Matchmark sticking on the attachment

Match matchmarks, and the cab interference prevention does not function and the attachment can

BOOM OFF-SET PEDAL

B LOCK POSITION RELEASE POSITION

be operated in the minimum swing radius. This matchmark does not show the interference prevention functioning point. SUPPLEMENTARY EXPLANATION

• When being off-set on the right side of the matchmark point, the slewing in the minimum radius is possible. • When being off-set on the left side of the matchmark point, the slewing in the minimum radius is impossible because the cab and canopy interference prevention equipment functions.


SK75UR-3E

7-3 INSTALLATION AND CONSTRUCTION OF ANGLE SENSOR 1. Installation of boom angle sensor SK75UR-3E T=Tightening torque : N .m {kgf .m}

6, 8 T=22.5±1.96 {2.3±0.2}

2

I Direct curve to cab side

6, 8 T=22.5±1.96 {2.3±0.2}

Note the direction of mark

3

A

A

View I

NOTE

1. Item 1 (sensor) should be installed with placing T=4.9±0.5 {0.5±0.05} 4, 7, 9

1

harness inside range of (*) LA. 2. Mark of item 1 (sensor) which is located on item 3 (lever) should be installed (*) in LB side.

No. 1 2 3 4 5 6 7 8 9

5, 7, 9 T=13.7±1.5 {1.4±0.15}

Section AA

Description Angle Sensor Rod Assy Lever Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lock Washer Lock Washer Washer


Q'ty 1 1 1 2 4 2 6 2 6

SK130UR-1E

SK130UR-1E

T=Tightening torque : N.m {kgf .m}

T=22.5±1.96 6, 8 {2.3±0.2}

2 I

3

6, 8 T=22.5±1.96 {2.3±0.2} A

A

View I


NOTE

1. Item 1 (sensor) should be installed with placing T=4.9±0.49 {0.5±0.05} 4, 7, 9

harness inside range of (*) LA.

1

2. Mark of item 1 (sensor) which is located on item 3 (lever) should be installed (*) in LB side.

No. 1 2 3 4 5 6 7 8 9

T=13.7±1.5 {1.4±0.15} 5, 7, 9 Section AA

Description Angle Sensor Rod Assy Lever Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lock Washer Lock Washer Washer


Q'ty 1 1 1 2 4 2 6 2 6

SK75UR-3E

2. Installation of Arm angle sensor SK75UR-3E

T=Tightening torque : N .m {kgf .m} T=22.5±1.96 {2.3 ±0.2} 7, 9

3 A

7, 9 T=22.5±1.96 {2.3 ±0.2}

4 A 9, 11, 12 T=65.7±6.9 {6.7 ±0.7}

1 5, 8, 10 T=4.9±0.5 {0.5 ±0.05}

B T=13.7 ±1.5 {1.4 ±0.15} 6, 8, 10 Section BB

B Note the direction of mark Section AA

NOTE

1. Item 1 (sensor) should be installed with placing harness inside range of (*) LA. 2. Mark of item 1 (sensor) which is located on item 3 (lever) should be installed (*) in LB side.

No. 1 2 3 4 5 6 7 8 9 10 11 12

Description Angle Sensor Lever Rod Assy Cover Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lock Washer Lock Washer Washer Capscrew (M10 X 20) Washer


Q'ty 1 1 1 1 2 4 2 6 5 6 3 3

SK130UR-1E

SK130UR-1E

T=Tightening torque : N .m {kgf .m} 3 T=22.5±1.96 {2.3 ±0.2} 7, 9

A 4

7, 9 T=22.5±1.96 {2.3 ±0.2}

2 A 9, 11, 12 1 5, 8, 10 T=4.9 ±0.49 {0.5 ±0.05}

B

T=13.7±1.5 {1.4 ±0.15} 6, 8, 10 Section BB B


Section AA

NOTE


No. 1 2 3 4 5 6 7 8 9 10 11 12

Description Angle Sensor Lever Rod Assy Cover Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lock Washer Lock Washer Washer Capscrew (M10 X 20) Washer


Q'ty 1 1 1 1 2 4 2 6 4 6 2 2

SK75UR-3E

3. Installation of Off-set angle sensor SK75UR-3E

NOTE T=Tightening torque : N .m {kgf .m}


T=115.0±12 {11.7±1.2} 3, 6

2

I

A


5

±

0 1

A View I

T=4.9±0.5 {0.5±0.05}

1

4, 7, 8

5, 7, 8 T=13.7±1.5 {1.4±0.15}

Section AA

No. 1 2 3 4 5 6 7 8

Description Angle Sensor Lever Capscrew (M12 X 50) Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lockwasher Washer


Q'ty 1 1 1 2 4 1 6 6

SK130UR-1E

SK130UR-1E

NOTE T=Tightening torque : N.m {kgf .m}


3, 6

2

A I

5

±

8 1


A

View I

T=4.9±0.49 1 {0.5±0.05} 4, 7, 8

5, 7, 8 T=13.7±1.5 {1.4±0.15}

Section AA

No. 1 2 3 4 5 6 7 8

Description Angle Sensor Lever Capscrew (M12 X 60) Capscrew (M6 X 16) Capscrew (M6 X 25) Nut Lockwasher Washer


Q'ty 1 1 1 2 4 1 6 6


4. Construction of angle sensor

4-Ø7

LOT No. stamp

Connector : Housing : Terminal : Plug : Retainer : Lead wire : Tube :

2-M6

Wiring diagram Red (1)

Black (3) White (2)

Angle (˚)

3MA-JMII+AMP 174359 171661-2 (Gold plating) 172746-1 1-174360-1 AVX 0.5f Iwase CSA PVC105C (Black) 6D White

Black

Output characteristic Red

NOTE

12 20 10 11 9 5 14 13 8 7 6

15 2 3 18 16 1

4

19 17

1. Manufacture Model : JCC-065-9 2. Specification 1) Effective electric angle : 180˚ ± 5˚ 2) Mechanical angle

: 360˚ continue

3) Resistance

: DC500V 1000M Ω and over

No. 1 2 3 4 5 6 7 8 9 10

Description Housing Roter Shaft Plate Corrector Terminal Wiper Holder Wiper Chip Wiper CP Ring

Q'ty 1 1 1 1 1 2 1 1 2 1

No.

Description

11 Resistance 12 Rubber Bushing 13 Nut 14 Washer 15 Snap Ring 16 Bearing 17 Bearing 18 Oil Seal 19 O-ring 20 Adhesive (Epoxy)


Q'ty 1 1 1 1 1 1 1 1 3

-


7-4 PROCEDURE TO RELEASE CAB INTERFERENCE PREVENTION FUNCTION

Do not release cab interference prevention switch unless emergency purpose is evident.

Don't fail to place the safety lock lever to "LOCKED POSITION" to bring down the operator seat, or the operator seat is not unlocked. Stop the engine first, then bring the operator's seat down forward and release the interference prevention release switch.

SAFETY LOCK LEVER

(1) Stop the engine with safety lock lever is "LOCKED"

LOCKED POSITION

position. (2) Recline the seat forward. (3) Cab interference prevention release switch (1) is located inside of control box. (4) Loosen lock bracket of cab interference prevention release switch (1), and turn bracket 45˚. (5) Place the cab interference prevention release switch (1) to release position. 1

Then set the bracket and tighten the sems-bolt. (6) Return the operator seat to original position, and

BRACKET

start engine. After, moving machine in safety area, repair cab interference prevention function.

SEMS-BOLT

(7) When the machine escaped to a safety area, check the cause of trouble immediately, and repair the malfunction. Return the interference prevention switch (1) to the side of interference prevention without fail NOTE

Normally, cab interference prevention switch should be held on interference prevention position.



7-5 INDICATOR ADJUSTMENT PROCEDURE

Adjustment is necessary in the following cases. (In this case, indicator means monitor) 1. Replacement of attachment 2. Replacement of angle sensor 3. Replacement of mechatro controller Remove the grommet of mechatro controller and change the internal adjusting switch from "RUN" to "TEST" to store the angle sensor value at the respective stroke end of the boom up, arm in and out, and off-set left and right operations in the mechatro controller. NOTE

In case of this adjustment, make sure the position of engine key is OFF.

14)Press "OFF-SET LEFT" switch which LED is lighted

1) Start the engine.

on, and monitor displays LONG or SHORT.

2) Press the "SET" and "RESET" switch together 5 to

Then select one of them

10 seconds.

LONG : 2.5 m Arm

3) Monitor displays "OPT STEP 1 START".

SHORT : 2.2 m Arm 4) Buzzer sound 0.5 second and stop 1.0 second by 15) Press "SET" switch, then buzzer sounds will be

turnes.

stopped. This completes the adjustment. 5) LED of "HEIGHT", "DEPTH" are lighted on. 16) Finally press "RESET" switch. 6) Operate following cylinders to stroke end.

(This initialize standard set position.)

* Boom raise, off-set right and arm in.

17) Stop the engine, change the mechatro controller

7) Press "HEIGHT", "DEPTH" switch which LED are

internal adjusting switch from "TEST" to "RUN", and

lighted on together once.

check that the interference prevention equipment function normally through test.

8) Monitor displays "OPT STEP 2 START"

18) When it functions normally, return the grommet to

9) Monitor displays "OFF-SET LEFT"

the former position and finish the adjustment.

10) LED of "HEIGHT", "DEPTH" are disappeared. 11) Operate following cylinder to stroke end. * Off-set left and arm out. * Boom position is not related.

12) Press "OFF-SET LEFT" switch which LED is lighted on. 13) "OPT SELECT ARM LONG" or "OPT SELECT ARM SHORT" is displayed.



7-6 INSPECTION OF ELECTRIC PARTS (3) Inspection of proportional solenoid valve valve (PSV)

(1) Inspection Inspection of angle sensor sensor of depth display display

You can confirm the input signal of each angle sen-

for stop

sor if you operate each attachment and check the

Check it with SERVICE DIAGNOSIS.

display.

PSV Boom Up Boom Down Arm Out Arm In Off-Set (L)

1) No display display changed even though though arm top pin height is moved over 0.1 m when operating boom raise and boom down. Or display is changed over 0.2 m even though

Symbol PSV 3 PSV 4 PSV 2 PSV 1 PSV 5

Screen No. 26 27 28 29 31

actual movement is approx. 0.1 m. 1) In the stop area, area, command feed feed back current current is 680

Boom angle sensor failure

mA for SK75UR-3E and 800mA for SK130UR -1E.

Boom angle sensor installation mistake 2) No display changed changed even though though arm top pin

2) No comman command d

height is moved over 0.1 m when operating arm

Potentio failure causes no arm top pin height

in or arm out operation.

can be fed back.

Or display is changed over 0.2 m even though

Angle sensor set mistake

actual movement is approx. 0.1 m.

3) Command Command is OK but but no fed back

Arm angle sensor failure

Disconnection of wire harness

Arm angle sensor installation mistake

PSV failure

3) No display changed changed even though though arm top pin

4) Both command command and and feed back back are OK

height is moved over 0.1 m when operating off-

PSV failure (stuck PSV spool, etc.)

set left and off-set right operation.

Hydraulic components failure

Or display is changed over 0.2 m even though actual movement is approx. 0.1 m. Off-set angle sensor failure Off-set angle sensor installation mistake (2) Inspection Inspection of angle sensor sensor voltage voltage signal

Check with SERVICE DIAGNOSIS. Boom : Servi Servi ce Diagnosis Screen Screen No.34

Boom Up Boom Down SK75UR-3E SK130UR -1E SK75UR-3E SK130UR -1E Voltage Angle

0.8 V

1.0 V

3.1 V

3.3 V

28˚

32˚

160˚

162˚

Ar m : Ser vi ce Di agnos agn os is Scr een No .34

Arm Out Arm In SK75UR-3E SK130UR -1E SK75UR-3E SK130UR -1E Voltage Angle

0.8 V

1.2 V

3.9 V

4.1 V

26˚

40˚

143˚

155˚

Off-set : Service Diagnosis Screen No.35

Off-set Left Off-set Right SK75UR-3E SK130UR -1E SK75UR-3E SK130UR -1E Voltage Angle

1.2 V 49˚

1.3 V

3.9 V

3.5 V

147˚

130˚

– 38 – Copyright Copyright © 2015 Kobelco Kobelco Construction Machinery Co.,Ltd. Co.,Ltd. All rights reserved. [S7Y [ S7YO00 O00207Z 207ZE01] E01] [0604CsCshWbYs] shWbYs]


(4) Display Display with failure failure code code No. 3) Inadequate Inadequate data data at adjustment adjustment

1) Input signal signal failure failure from angle sensor sensor

When disconnected wiring or short circuit, it will

When adjusting, the angle sensor input data at

cause of input signal failure from angle sensor.

respective stroke end of the boom up, arm out

In this case following code will be displayed.

and in, and off-set right and left is stored in the

Also stop signals signals will be output output and and caution caution buzzer

controller. When respective input data differs 20

continuously sound.

degree or more from the theoretical value, the data

Boom Angle Sensor Fail

POT

BOOM POTENTIO

POT

ARM POTENTIO

does not input in the controller because the position may not be on the adjustment or the angle input sensor input value may be failed.

Arm Angle Sensor Fail

POT

Off-set Left Sensor Fail

Boom Up Data Fail

POT

SET ERROR BOOM RAISE

Arm In Data Fail

POT

SET ERROR ARM IN

Arm Out Data Fail

POT

SET ERROR ARM OUT

Off-set Right Data Fail

POT

SET ERROR OFF-SET (R)

Off-set Left Data Fail

POT

SET ERROR OFF-SET (L)

OFF-SET POTENTIO

In the case of plural number of s ensor failure, all items will be displays alternately. alternately. REMEDY: Check harness and angle sensors.

When the upper display is appeared, the boom, arm and off-set left operation stop.

When the operation of the machine is unavoidable, place the release switch under the operator seat to the release side, and it is operable.

Contact Service shop. 2) Proportiona Proportionall valve failure failure

PSV

BOOM RAISE PROPO- VALV

PSV

BOOM LOWE L OWER R PROPO- VALV

PSV

ARM IN PROPO- VALV

PSV

ARM OUT PROPO- VALV

PSV

When the left display is appeared, it may not stop at the specified position. (Operable)

Contact Service shop.

OFF-SET (L) PROPO- VALV



8. PRESSURE AND PERFORMANCE STANDARD 8-1 STANDARD STANDARD FOR HYDRAULIC OIL PRESSURE PRESSURE MEASUREMENT MEASUREMENT (1) Hydraulic Hydraulic instruments instruments

(3) Place to to install pressur pressure e gauge

70 kgf/cm2 (1000 (1000 psi) psi) pressur pressure e gauge gauge ...... ...... 1 set

1) Main Main circui circuitt

500 kgf/cm2 (7100 psi) pressur pressure e gauge gauge .... 3 sets sets

After relea sing air in the hydraulic hydr aulic tnak, tnak , replace repla ce

Surface Surface Thermometer Thermometer ........... ................ .......... ........... .......... .... 1 set

plugs PF PF 1/4 of main main pump gauge ports ports a1 , a2

Pressure Measuring Kit and

with plugs for pressure measurement, and attach

Oil Analyzing Analyzing Equipment Equipment ........... ................ .......... ..... 1 set (2) Measuring Measuring cleanlines cleanliness s of hydraulic oil

pressure gauge 500 kgf/cm 2 (7100 psi). 2) Dozer Dozer circui circuitt

• After releasing releasing air in the hydraulic hydraulic oil tank, tank, open the

Replace dozer pump gauge plug PF 1/4 a3 with

cover and sample oil in the hydraulic tank, and mea-

plug for pressure measurement, and attach pres-

sure with the instrument for analysis. If the measured value is over the standard value, replace the return filter and/or change the hydraulic oil.

sure gauge 500 kgf/cm 2 (7100 psi). 3) Pilot Pilot circuit circuit Replace pilot gauge plug a4 with plug PF1/4 for pressure measurement, and attach pressure gauge 70 kgf/cm2 (1000 psi).

SK75UR -3E

SK130UR -1E

a2

a1 A3

Main pump, gauge port

a2(a1) Main pump, gauge port

a3

a4

Pump

Plug for pilot pressure measurement Pump

Dozer pump, plug for gauge

a2 Main pump a1

a4

Plug for pressure measurement a3

Pump

Dozer control valve

Pilot, plug for pressure measurement

Pump

Plug for dozer circuit pressure measurement



PRESSURE ADJUSTMENT POSITION (1) Main control valve SK75UR -3E

Arm out OR8-D3

Off-set left OR11-A5

Bucket digging OR1-A3

Boom up OR3-A2

Main relief MR1

Off-set right OR12-B5

Bucket dump OR2-B3

Boom down OR4-B2 View from front side of machine

Arm in OR7-C3 View from rear side of machine

Rear of machine

SK130UR -1E

Off-set left OR11 Main relief MR1

Bucket dump OR2

Boom up OR3

Rear of machine View from top of machine

Arm out OR8

Boom down OR4 Bucket digging OR1 Arm in OR7

Off-set right OR12

View from bottom of machine



(2) Control valve for dozer (Dozer specification only) SK75UR -3E

Dozer up OR10

Main relief MR3

Dozer down OR9

SK130UR -1E

Main relief MR3

Dozer up OR10

Dozer down OR9



(3) Pilot relief valve

Pilot relief valve PR1 is built in main pump. SK75UR -3E

SK130UR -1E

PR1 Pilot relief

PR1 Pilot relief Pilot relief valve position

(4) Slewing overload relief

The slewing motor is equipped with plugs for pressure measurement, but the measurement is carried out using gauge ports a1 and a2 . SK75UR -3E

Slewing left Over load relief valve OR5-B port

SK130UR -1E

Dr

2 plugs PT 1/4 for pressure measurement

2 plugs PT 1/4 for pressure measurement

A

B Port PF3/8 (Plug) Air release port Slewing right Over load relief valve OR6

Slewing right Over load relief valve OR6

Slewing left Over load relief valve OR5

Slewing over load relief position


SK75UR-3E

PROCEDURE FOR ADJUSTING RELIEF VALVE SK75UR -3E (1) Pilot relief valve PR1

660

Loosen nut (661) and adjust it with adjust screw (660). : 24 mm : 6 mm

No. of turns of adjust screw 1/2 turn

Pressure change kgf/cm2 (psi) Approx. 62 (880)

Pilot relief valve

661 T=3.0 kgf·m (22 lbf·ft)

7 T=2 kgf·m (14 lbf·ft)

(2) Main relief valve (Travel section, ATT common section) MR1

Loosen lock nut (7) and adjust it with adjust screw

6

(6). : 19 mm : 4 mm



Main relief valve (Travel section , ATT common section)

8 T=2 kgf·m (14 lbf·ft)

(3) Port relief valve (Boom, bucket, arm off-set sections) Loosen lock nut (8) and adjust it with adjust screw

(7). : 19 mm

7

: 4 mm


Over load relief valve (Boom, bucket, arm, off-set sections)


71

(4) Slewing over load relief valve OR-5, OR-6 When the adjusted pressure is 10 kgf/cm2 (142 psi)

T=4 kgf·m (29 lbf·ft)

or less, loosen nut (71) and adjust it with cap (90). : 24, 27 mm : 5 mm When the pressure adjusted value is over 10 kgf/ cm2 (142 psi), replace the relief valve assy.

90 Slewing over load relief valve


SK130UR-1E

SK130UR -1E (1) Pilot relief valve PR-1

Adjust it with adjust screw (611). : 6 mm

611 No. of turns of adjust screw 1 turn


Pilot relief valve

7

(2) Main relief valve (Travel section, ATT common section) MR-1

6

Loosen lock nut (7) and adjust it with adjust screw (6).

Main relief valve (Travel section, ATT common section)

: 19 mm : 4 mm

No. of turns of adjust screw 1 turn

Pressure change kgf/cm2 (psi) Approx. 180 (2600) 8

(3) Over load relief valve OR-1 to 4, OR-7 to 12

7

(Boom, bucket, arm, off-set sections)

Loosen lock nut (8) and adjust it with adjust screw (7). : 19 mm

Over load relief valve (Boom, bucket, arm, off-set sections)

: 4 mm

No. of turns of adjust screw 1 turn

Pressure change kgf/cm2 (psi) Approx. 180 (2600) 71

(4) Slewing over load relief valve When the adjusted pressure is 10 kgf/cm2 (142 psi)

or less, loosen nut (71) and adjust it with cap (90). : 41 mm

90

: 22 mm

Slewing over load relief valve

When the pressure adjusted value is over 10 kgf/cm2 (142 psi), replace the relief valve assy. (5) Travel surge cut valve Adjustment is done by manufacturer, so don’t replace parts other than O ring.

Loosen cap (204) and adjust it with shim (205). : 10 mm

204 205 Travel surge cut valve



Pickup

8-2 ENGINE SPEED MEASUREMENT (1) Warming up of engine Start engine to raise the coolant temEngine coolant temperature gauge perature of engine to 40 to 80˚C. (104˚ Red to 176˚F) White The E/G coolant temperature gauge Blue is used to measure. The range in white color shows the temperature of approx. 40 to 100˚C (104˚ to 212˚F), so confirm that the measured value indicates the temperature within the range of white color.

Speed meter

Measurement of E/G speed

(2) Measuring with diesel engine speed meter

1) Install diesel engine speed meter pickup on and of injection pipes on which the pickup can be easily installed.

Buzzer Stop Switch (Returns)

Screen Change SW (Advances)

2) Check E/G idling speed. (3) Engine speed measured value through service diagnosis

Work Mode Select SW

1) Turn "ON" the starter switch with the buzzer stop switch pressed. 2) A program No. and an actual engine revolution are displayed as the No.2 Item.

Gauge Cluster

3) At the "H" mode, if work mode select switch is pressed after pressing buzzer stop switch and returning a display screen, the engine speed in "H" mode is displayed. 4) Press a work mode select switch in "S" and "FC" mode, select each mode, and the engine speed in each mode is displayed.

2

5) The screen advances like No.2, No.3....each time the screen change switch is pushed.

No.2 E/G SET MEAS E/G PRS. KPSS SW

2205 2201 LIVE H

No load set rpm Actual rpm LIVE/DEAD indication H/S/FC indication

6) The screen returns like No.40, No.39....each time the buzzer stop switch is pressed. 7) The display does not disappear unless the starter switch is turned to "OFF". (4) Actual measurement of engine revolution by the screen change switch After the engine starts, the following items are displayed in that order each time the screen change switch is pressed.

• Engine speed (At this time, each mode is chosen and engine speed is measured.)

DEPTH +0.0m

2250RPM

256Hr AFT E/G OIL CH Example of screen change

• Hours after the engine oil was replaced



8-3 TEST PROCEDURES (1) Travel speed

1) Purposes Measure the track link revolution and confirm the performances between the hydraulic pump and the travel motor of the travel drive system. 2) Conditions

One side lifted position

Operating oil temperature : 45~55˚C (113 ~ 131˚F) Crawler on the right and left sides are tensioned evenly. 3) Preparation Stick the packing tape to the travel motor cover.

Packing tape

Swing the slewing frame through 90 as shown in °

Fig. right and make the crawler on one side take off the ground, using the attachment. 4) Measurement Engine speed ................. Hi idle 2-speed travel switch ..... 1st and 2nd speed Measuring points ........... Right and left Method........................... Using stopwatch, measure

Sticking position of mark

the revolutions per minute visually

Track Link Revolutions Item Item

RH and LH

Unit : rpm Standard value

Repairable level

Service limit

Model

SK75UR-3E SK130UR-1E SK75UR-3E SK130UR-1E SK75UR-3E SK130UR-1E

H1

19.2 ~ 21.2

22.1 ~ 24.4

23.9 ~ 26.5

27.6 ~ 30.6

29.6~

34.1~

H2

12.3 ~ 13.6

13.4 ~ 14.8

15.1 ~ 16.8

16.5 ~ 18.3

18.7~

20.4~

S2

13.1 ~ 14.5

13.6 ~ 14.8

16.1 ~ 17.9

16.8 ~ 18.3

20.0~

20.6~

FC2

15.2 ~ 16.8

17.3 ~ 19.1

18.8 ~ 20.9

21.5 ~ 23.8

23.3~

26.6~



(2) Deviation of travel

1) Purposes Measure the amount of deviation at 20 m (66 ft) travel and confirm the right and left balance from the hydraulic pump to the travel motor of the travel drive system.

30~40cm (1 ft)

2) Condition Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F)

Travel position

RH and LH crawler are tensioned evenly. Plain, level and solid ground Engine speed : Hi idle 3) Preparation

A

a. Straight course more than 30 m (33 yard)

20m (22 yard)

b. Travel position in which the bottom of the bucket is lifted by about 30 cm (1 ft).

Measuring method

4) Measurement a. Measure the max. deviation distance of the circular arc in the 20 m (22 yard) length, excluding the preliminary run of 3~5 m (10~16 ft). b. Operate the travel lever at the same time.

Travel deviation Unit : mm/20m Measurement Standard Repairable Service item value level limit 240 (9'45") or less 480 (18'9") 720 (28.3") A

(3) Performances of parking brake

1) Purposes Confirm that the parking brake holds a stopped con-

30cm (1 ft)

dition of the machine in a no-load travel position and on a 1/4 gradient slope. 2) Condition

1/4 gradient Approx. 15 deg.

A slope with 1/4 (Approx. 15 deg) gradient and a

Parking brake operating position

stopped condition in a no-load travel position. 3) Preparation Place an angle meter on the shoe plate and confirm that it makes an angle more than 15˚. Hang a perpendicular in parallel with the guide frame rib on the track frame and put a mark (matching mark) on the shoe plate. 4) Measurement

Angle meter

Method of measurement

Five minutes after the engine stops, measure the movement distance of the matching mark.

C

Guide frame

Parking brake Measurement position C

Standard value 0

Unit : mm/5min Repairable Service level limit 1 (0.04 in) 2 (0.08 in)



(4) Drain rate of travel motor

Forward

1) Purposes To measure the drain rate of the travel motor and to confirm the performances of the travel motor.

Rib "A"

2) Conditions Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Engine speed : Hi idle 3) Preparation

Stopper "B"

a. Apply stopper pins for both travel sprockets of left and right.

Rotary direction

b. Stop the engine, and release air in the hydraulic

Location of stopper applied to travel sprocket

oil tank c. Loosen nut and disconnect drain tube, and plug the end of this tube.

90

d. Connect a hose to the drain port of travel motor,

Ø10

Ø22 pipe

and receive the drained oil in a container

40

4) Measurement ; at Travel Lock Unless you observe the rotary force direction at

L

Stopper "B"

travel lock, rib “A” may be broken by stopper “B” in some cases. a. Start the engine and relieve pressure at the full

ØD

stroke of the travel lever.

Stopper

b. Measure the drain rate for 30 seconds of relieving. Take three measurements in the forward motion on each side at one time and make the mean value the measured value.

Unit : mm Model SK75UR-3E

Item

SK130UR-1E

ØD

L

60

100

70

130

Plug Hose

Unit : L/30sec Drain of travel motor

Item

Standard value

Repairable level

Service limit

SK75UR-3E

3.4

6.8

10

SK130UR-1E

5

13

15

Model



(5) Slewing speed

1) Purposes Measure the slewing time and confirm the performances between the hydraulic pump and the swing motor of the slewing drive system.

Max. reach

2) Conditions Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Hard and level ground Engine speed : Hi idle

Standard slewing speed measuring position (at the max. reach)

3) Preparation The height of 1.5 m (5 ft) at which the bottom of the bucket matches the tip of the tooth on condition that the bucket is empty, the arm cylinder is most retracted and the bucket is used for digging. 4) Measurement Slewing the machine by bringing the slewing lever to its full stroke. Measure the time required to make two turns after one turn of preliminary turn and calculate the time required for one turn.

Variable slewing speed measuring position (at the min. reach)

Slewing Speed

Unit : sec/rev Item Model

Item

Standard value

Repairable level

Service limit


Standard slewing

4.6 ~ 5.2

4.9 ~ 5.7

6.0 ~ 6.6

6.3 ~ 7.3

7.4 ~

8.0 ~

Variable slewing

7.6 ~ 10.6

10.1 ~ 14.1

10.7 ~ 13.6

12.9 ~ 18.0

15.9 ~

18.2 ~

(6) Drain rate of slewing motor

1) Purposes Measure the drain rate of the slewing motor and confirm the performances of the slewing motor 2) Conditions Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Engine speed : Hi idle 3) Preparation a. Release air from inside the hydraulic oil tank. b. Stop the engine. c. Disconnect the slewing motor drain hose from its end returning to the hydraulic oil tank and take oil in a container d. Put a plug to the tank side. 4) Measurement ; at Slewing Lock a. Start the engine and put the side faces against the inside of the right or left shoe plate. b. Relieve the slewing motor at full stroke of the slewing motion. c. Receive in a container the amount of drain accumulated in 30 seconds of relieving.

Drain rate of slewing motor Unit : L/30sec Standard Repairable Service Item Model value level limit SK75UR-3E

5.0

7.5

10

SK130UR-1E

5.0

8.0

11



(7) Performance of slewing brake

1) Purposes Confirm the braking torque performances by the slewing relief valve.

1.5m (5ft)

2) Conditions Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Hard and level ground, Bucket is empty Engine speed : Hi idle

Slewing brake performance measuring position

3) Preparation a. A height of 1.5 m (5 ft) at which the bottom of the bucket matches the tip of the tooth on condition that the bucket is empty, the arm cylinder is most retracted and the bucket is used for digging.

Measuring the length of the arc over the outer circumference of slewing race Matching marks on slewing race

B

b. Put a mark (matching mark) on the outer circumference of the slewing bearing of the upper frame side and of the track frame side. Erect two poles (flags) at the front and back of the extended line of the matching mark.

Matching marks on track frame

4) Measurement a. When operating in regular slewing speed, by shifting lever to neutral position at pole position the slewing operation stops. b. Calculate the slewing drift angle by the following equation, after the upper slewing body stops, using the amount of deflection (m) of the matching marks on the slewing race and the length (m) of the circumference of the slewing race:

Slewing drift angle (˚) =

Amount of deflection of matching marks [m] Circumferential length of slewing race [m]

Measuring position of slewing brake performances Slewing brake performance Unit : degree Standard Repairable Service Item Model value level limit SK75UR-3E

55

SK130UR-1E 55~75 or less

61

66

80

90

X 360˚

(8) Performance of slewing parking brake

15˚

1) Purposes To confirm the mechanical performances of the slewing parking brake that is fitted to the inside of the slewing motor. 2) Conditions On a slope with 1/4 (Approx. 15 deg.) gradient stop the machine at right angles with the slope at the height of 1.5 m (5 ft) at which the bottom of the bucket matches the tip of the tooth on condition that the bucket is empty, the arm cylinder is most retracted and the bucket is operated for digging.

Slewing parking brake measuring position Measuring the length of the arc over the outer circumference of slewing race Matching marks on slewing race

3) Preparation Put the angle meter on the shoe plate and make sure that the angle is more than 15˚. Put a matching mark over the outer circumference of the slewing bearing on the upper frame side and on the track frame side. 4) Measurement When five minutes has passed after the engine stops, measure the length of the movement of the matching marks.

C

Matching marks on track frame Measuring position of slewing brake performances

Measurement position C

Standard value 0

Unit : mm/5min Repairable Service level limit 1 2



(9) Operating time of cylinders

1) Purposes Measure the operating time of the boom, arm, dozer and off-set and confirm the performances between the hydraulic pump and the cylinder of the attach-

(1)

(2)

ment drive system. 2) Conditions

30cm (1 ft)

Measuring position for bucket digging and dump

Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Engine speed : Hi idle Operating time excluding the cushion stroke 3) Preparation Hard and level ground with the bucket empty 4) Measurement 1 ; Boom up and down

(3)

With the boom operating lever at full stroke, measure the required operating time of the bucket be-

(4)

tween the ground surface and its highest position.

Measuring position for boom up and down motions

When lowering the boom, allow the bucket onto a soft ground or cushioning such as rubber tires; never put the bucket against concrete or other solid material. Measurement 2 ; Arm in and out, bucket digging and dump In a position in which the tooth of the bucket rises

(6)

to a level of about 30 cm (1 ft) above ground, mea-

(5) 30cm (1 ft)

sure the full stroke operating time required with the

Measuring position for arm in and out motions

arm and bucket operating levers at full stroke. Measurement 3 ; Dozer Using attachment like a stick, lift the machine body’s dozer side. Measure the required time for the operating of dozer up and down at full stroke.

(8)

Measurement 4 ; Off-set

(7)

Keep the off-set cylinder horizontal and position the arm vertical and close the bucket fully. and place

Dozer blade up and down

the dozer blade to ground. Measure the required time for the operating of boom swing from left/right to right/left at full s troke.

(10)

(9) Off-set motion from end to end



(10) Cylinder operating time

Slewing Speed

Unit : mm/min Item

Measuring position

Model

Standard value

Repairable level

Service limit


1

3.3 ~ 3.9

3.4 ~ 4.0

4.2 ~ 5.0

4.4 ~ 5.1

5.4 ~

5.6 ~

2

1.8 ~ 2.4

2.0 ~ 2.6

2.3 ~ 3.3

2.6 ~ 3.3

3.2 ~

3.5 ~

3

2.5 ~ 3.1

2.8 ~ 3.4

3.2 ~ 4.0

3.6 ~ 4.4

4.2 ~

4.7 ~

4

3.8 ~ 4.4

5

2.6 ~ 3.2

2.7 ~ 3.3

3.3 ~ 4.1

3.5 ~ 4.2

4.4 ~

6

2.2 ~ 2.8

2.2 ~ 2.8

2.8 ~ 3.6

2.8 ~ 3.6

3.8 ~

7

1.9 ~ 2.5

3.2 ~ 4.2

2.4 ~ 3.2

4.1 ~ 5.4

3.3 ~

5.6 ~

8

1.4 ~ 2.0

3.0 ~ 3.6

1.8 ~ 2.6

3.8 ~ 4.6

2.6 ~

5.0 ~

9

3.2 ~ 3.8

5.3 ~ 6.7

4.1 ~ 4.9

6.8 ~ 8.6

5.3 ~

9.0 ~

10

3.8 ~ 4.4

5.4 ~ 6.8

4.9 ~ 5.6

6.9 ~ 8.7

6.2 ~

9.2 ~

4.9 ~ 5.6

6.2 ~ 4.5 ~

(11) Oil tightness of cylinders

1) Purposes Confirm that the cylinder oil tight by checking the

B

moving length of the cylinder rods.

C

2) Conditions

A

Hydraulic oil temperature : 45 ~ 55˚C (113 ~ 131˚F) Level and solid ground

D 1.5m (5 ft)

When cylinders are replaced, bleed off air from the cylinders, before checking for oil tightness. The arm cylinder has moved 30 mm (1.2 in) from the stroke end. (Off the cushioning range) 3) Preparation Keep the tip of the bucket at 1.5 m (5ft) height, with the bucket empty and the arm cylinder is most retracted. [Provided the arm cylinder is extended by 30 mm (1.2 in).] 4) Measurement Measure the distance of drift five minutes after the engine is tuned off.

Oil tightness of cylinder Item Measurement

Model

position

Unit : mm/5min Standard value

Repairable level

Service limit


A

3

3

4.5

4

6

5

B

3

4

4.5

5

6

7

C

3

-

6

-

9

-

D

51 or less

90

76 or more

110

102 or more

150



(12) Slewing bearing

Location of bearing mounting bolts

1) Purposes Measure the gap between the lower frame and the bottom face of the swing bearing and estimate the level of wear of the swing bearing.

Slewing bearing A

2) Conditions Hard and level ground

Dial indicator

The slewing bearing mounting bolts are not loosened. The slewing bearing is lubricated well, not making

How to measure the axial play of slewing bearing

abnormal sound during slewing. 3) Preparation a. Install a dial indicator to the magnetic base and fix it to the lower frame.

90˚~110˚

b. Direct the upper slewing body and the lower frame toward the travel direction, bring the probe of the dial indicator in contact with the bottom surface of

30cm (1 ft) Measuring position I

the outer race on the slewing body side and set the reading at zero. 4) Measurement 1 (Measuring position I and II) a. Measure the travel of the outer race in the axial direction in position I [The arm at 90˚ ~ 110˚ and the crawler front lifted about 30 cm (1 ft)] and in

1.5m (5 ft)

position II, using a dial indicator. b. Measure three times, and take a simple average.

Measuring position II

Axial play of slewing bearing Standard Repairable Position value level A 1.2 ~ 2.8 3.6 ~ 4.2

Unit : mm Service limit 4.5 or more

5) Measurement 2 (Measuring position III) With the arm cylinder most retracted and the bucket dump, lift the tip of the tooth of the bucket about 10 mm (0.4 in) and swing the tip of the bucket to right

B

10mm

and left by man power.

Measuring position III

But in this case, the gap of the attachment is included.

Unit : mm Measuring position B

Item

Standard value

Repairable level

Service limit

SK75UR-3E

40

80

120 or more

SK130UR-1E

25 ~ 55

60 ~ 110

120 or more

Model


SK75UR-3E

9. PERFORMANCE STANDARD TABLE SK75UR -3E

Note) The mode is already S mode when power is thrown. Unless otherwise specified, measure it on H mode. Measuring Position Standard Tolerance Adjusting Measuring Inspection Item Unit Point condition Position Size Port value Hi Lo +1 -1 Class Sampling g Cleanliness of hydraulic oil Hydraulic oil in tank NAS 8 n i Ambient temp. r Hydraulic oil temperature Tank surface 50(122) +5(41) -5(23) ˚C u 50˚C~-10˚C s nCoolant temperature Radiator surface 75(167) +15(59) -15(5) (˚F) (122˚F~14˚F) a o e i t Lo idle 1020 +30 -30 LOW throttle i Display change m d e 2250 +30 -30 d Adjustment FULL throttle (H mode) dHi idle switch on the r n o n e a c i Perform all eS mode not gauge cluster 2100 +30 -30 rpm d g n n p s FC mode screen required measurement with 1800 +30 -30 a E t the air-conditioner (Injection pipe) S Decel 1050 +30 -30 "OFF". Pilot primary pressure circuit G pump a4 3.4{35} +0.2{+2} -0.1{-1} PR1 Hi idle e RH and LH P1 a1 f r uTravel simultaneous +0.5{+5} 0{0} MR1 29.4{300} e i l s P2 a2 operation s e r e r P1 a1 29.4{300} +0.5{+5} 0{0} n p ATT i MR1 Boom up e a v P2 a2 29.4{300} +0.5{+5} 0{0} l M a P3 a3 19.6{200} +0.5{+5} 0{0} v Dozer H OR3 Boom up 32.8{335} 0{0} -3.4{-35} a1 Boom R OR4 Boom down 32.8{335} 0{0} -3.4{-35} t i u H OR1 Bucket digging 32.8{335} 0{0} -3.4{-35} e c a1 r r Bucket i R OR2 Bucket dump 32.8{335} 0{0} -3.4{-35} c u s s e Forward Simultaneous r e RH Main PF1/4 a1 u r s p Reverse operation of travel s e Travel pump e RH and LH v Forward r l p a LH a2 (No over load relief) Reverse v h f g i i e LH OR5 Swing LH 24.5{250}+2.5{+25}+0.5{+5} H l Swing a2 e r RH OR6 Swing RH 24.5{250}+2.5{+25}+0.5{+5} d H OR7 Arm in 32.8{335} 0{0} -3.4{-35} a o Arm a2 l R OR8 Arm out 32.8{335} 0{0} -3.4{-35} r e LH OR11 Off set LH v 32.8{335} 0{0} -3.4{-35} a1 O Off set RH OR12 Off set RH 32.8{335} 0{0} -3.4{-35} H OR9 Dozer down 27.5{280} 0{0} -7.8{-80} Dozer a3 MPa R 27.5{280} 0{0} -7.8{-80} OR10 Dozer up {kgf/cm2} proportional k Indicated Performs calculation from actual B 21 c P2 cut valve current readings on o No. current display l Values which are calcu1.0 +0.15 -0.05 b Travel straight lated by C 22 value pressureconverting e valve values in the {10} {+1.5} {-0.5} v figure to current l (mA) left values are shown. a P1 cut valve D E/G hi, lever on neutral 20 v 314 position l

-

-

-

t i u c r i c e r u s s e r p t o l i p y r a d n o c e S

a n o i t r o p o r P

P2 cut valve

B

Travel straight valve

C

P1 cut valve

D

k c Arm o l b e v Boom l a v l a Off set n o i t r o Arm p o r p e Boom s r e v n Off set I

In Out Down Up

A1 A2 A3 A4

- -

Left In Out Down Up

A5 A1 A2 A3 A4

- -

Left

A5

y a l p s i d i t l u m r e t s u l c e g u a G 2 C

. o N n e e r c s s i s o n g a i d e c i v r e S

-

-

-

21 22

2.5 {25}

+0.2 {+2}

-0.15 {-1.5}

3.4 {35}

+0.2 {+2}

-0.1 {-1}

715

E/G Hi The max. value is displayed as the full lever strokes.

200

E/G Hi lever on neutrul position

680

E/G Hi Cab interference prevention area Height limitation area Depth limitation area

20 29 28 27 26

-

-

31 29 28 27 26

0 {0}

-

31

+0.05 {+0.5}

0 {0}


SK75UR-3E

Inspection Item Track link revolution (RH, LH)

Standard Value 1-speed

19.2 ~ 21.2

2-speed

12.3 ~ 13.6

S mode

2-speed

13.1 ~ 14.5

FC mode

2-speed

15.2 ~ 16.8

Up

2.5 ~ 3.1

Down

3.8 ~ 4.4

In

2.6 ~ 3.2

Out

2.2 ~ 2.8

Digging

3.3 ~ 3.9

Dump

1.8 ~ 2.4

Down

1.9 ~ 2.5

Up

1.4 ~ 2.0

Right

3.8 ~ 4.4

Left

3.2 ~ 3.8

Variable speed

7.6 ~ 10.6

STD speed

4.6 ~ 5.2

H mode

Boom Arm d e Operating time e p S of cylinder g (At no load) n i t a r e p O

Bucket Dozer Off set

Slewing speed

1-speed Travel speed 2-speed

Rubber

22.3 ~ 23.7

Iron

23.0 ~ 24.4

Rubber

11.9 ~ 13.9

Iron

12.6 ~ 14.6

Unit

sec/3 revs.

sec

sec/1 rev

sec/20m

Amount of travel deviation

High speed

0 ~ 240

mm/20m

Parking brake drift

15˚ gradient

0

mm/5min

Neutral position after 180˚ full speed swing

45 ~ 65

degree

15˚ gradient

0

mm

Tip of bucket tooth

85

Boom cylinder

5

Arm cylinder

5

Dozer cylinder

5

Performance of slewing brake

e c n a Performance of m r o f r e P

slewing parking brake

ATT amount of drift

Amount horizontal play at the bucket tooth

30 ~ 45

mm/5min

(At no load)

mm


SK130UR-1E

SK130UR -1E

Note) The mode is already S mode when power is thrown. Unless otherwise specified, measure it on H mode. Measuring Position Standard Tolerance Measuring Adjusting Inspection Item Unit condition Point Position Size Port value Hi Lo +1 -1 Class Sampling g Cleanliness of hydraulic oil Hydraulic oil in tank NAS 8 n i Ambient temp. r Hydraulic oil temperature Tank surface 50(122) +5(41) -5(23) ˚C u 50˚C~-10˚C s nCoolant temperature Radiator surface 75(167) +15(59) -15(5) (˚F) (122˚F~14˚F) a o e i t Lo idle 1000 +25 -25 LOW throttle i Display change m d e 2310 +30 -30 d Adjustment FULL throttle (H mode) dHi idle switch on the r n o n e a c i Perform all eS mode gauge cluster 2200 +30 -30 rpm not d g n n p s screen required measurement with 1700 +30 -30 a E FC mode t the air-conditioner (Injection pipe) S Decel 1050 +30 -30 "OFF". Pilot primary pressure circuit G pump a4 5.0{51} +0.5{+5} -0.1{-1} PR1 Hi idle e RH and LH P1 a1 f r u Travel simultaneous 0{0} MR1 34.3{350} +0.5{+5} e i l s P2 a2 Main operation s e r e r a1 34.3{350} +0.5{+5} 0{0} P1 pump p n i ATT MR1 Boom up e a v P2 a2 34.3{350} +0.5{+5} 0{0} l M a P3 G pump a3 20.6{210} +0.5{+5} 0{0} v Dozer H OR3 Boom up 37.7{385} 0{0} -3.4{-35} Boom a1 R OR4 Boom down 37.7{385} 0{0} -3.4{-35} t i u H OR1 Bucket digging 37.7{385} 0{0} -3.4{-35} e c a1 r r Bucket i OR2 Bucket dump 37.7{385} 0{0} -3.4{-35} R c u s s e Forward Simultaneous r e RH PF1/4 a1 34.3{350} +1.0{+10} 0{0} u r s p Reverse operation of travel s e Travel e RH and LH v Forward Main r l p a LH a2 34.3{350} +1.0{+10} 0{0} (No over load relief) Reverse pump v h f g e i LH OR5 Swing LH 27.9{285} +3.4{+35} +0.5{+5} l Swing H i a2 e r RH OR6 Swing RH 27.9{285} +3.4{+35} +0.5{+5} d H OR7 Arm in 37.7{385} 0{0} -3.4{-35} a o Arm a2 l R OR8 Arm out 37.7{385} 0{0} -3.4{-35} r e LH v OR11 Off set LH 37.7{385} 0{0} -4.4{-45} a1 O Off set RH OR12 Off set RH 37.7{385} 0{0} -4.4{-45} H OR9 Dozer down 27.5{280} 0{0} -6.8{-70} Dozer G pump a3 R OR10 Dozer up 27.5{280} 0{0} -6.8{-70} proportional MPa Indicated Performs B P2 cut valve 21 calculation from actual readings on {kgf/cm2} current current 1.0 display No. k Travel straight C 22 value c valve Values which are calcu+0.15 -0.05 {10} o lated by converting l (mA) b {+1.5} {-0.5} D P1 cut valve 20 344~354 pressure values in the

-

-

-

-

t i u c r i c e r u s s e r p t o l i p y r a d n o c e S

e v l a Arm variable v l recirculation a n P2 cut valve o i t r Travel straight o valve p o r P P1 cut valve

Arm variable recirculation In k c Arm o Out l b Down e v Boom l Up a v l a Off set n o i t r o Arm p o r p e Boom s r e v n Off set I

A B C D A A1 A2 A3 A4

- -

Left In Out Down Up

A5 A1 A2 A3 A4

- -

Left

A5

y a l p s i d i t l u m r e t s u l c e g u a G 2 C

. o N n e e r c s s i s o n g a i d e c i v r e S

23 2.45{25}

670

21 2.65{27}

707

22 1.67{17} +0.2 20 2.65{27} {+2}

-0.15 {-1.5}

E/G Hi The max. value 535 is displayed as the full lever 707 strokes differ with types of 321~670 operations.

-0.05 {-0.5}

E/G Hi Min.200 lever on neutrul position

-0.15 {-1.5}

E/G Hi Cab interference prevention area Max.800 Height limitation area Depth limitation area

23 1.27~2.45{13~25} 29 28 27 3.43~0.59 +0.05 26 {35~6} {+0.5}

left figure to current values are shown. E/G hi, lever on neutral position

-

31 29 28 27 26

0.21~0 +0.15 {2.1~0} {+1.5}

-

31


SK130UR-1E

Inspection Item Track link revolution (RH, LH)

Standard Value 1-speed

22.1 ~ 24.4

2-speed

13.4 ~ 14.8

S mode

2-speed

13.6 ~ 14.8

FC mode

2-speed

17.3 ~ 19.1

Up

2.8 ~ 3.4

Down

3.8 ~ 4.4

In

2.7 ~ 3.3

Out

2.2 ~ 2.8

Digging

3.4 ~ 4.0

Dump

2.0 ~ 2.6

Down

3.2 ~ 4.2

Up

3.0 ~ 3.6

Right

5.3 ~ 6.7

Left

5.4 ~ 6.8

H mode

Boom Arm d e Operating time e p S of cylinder g (At no load) n i t a r e p O

Bucket Dozer Off set

Slewing speed

Variable speed

10.1 ~ 14.1

STD speed

4.9 ~ 5.7

1-speed Travel speed 2-speed

Rubber

18.4 ~ 20.4

Iron

20.1 ~ 22.1

Rubber

11.1 ~ 12.5

Iron

11.8 ~ 13.2

Unit

sec/3 revs.

sec

sec/1 rev

sec/20m

Amount of travel deviation

High speed

0 ~ 240

mm/20m

Parking brake drift

15˚ gradient

0

mm/5min

Neutral position after 180˚ full speed swing

55 ~ 75

degree

15˚ gradient

0

mm

Tip of bucket tooth

90

Boom cylinder

3

Arm cylinder

4

Dozer cylinder

3

Performance of slewing brake

e c n a Performance of m r o f r e P

slewing parking brake

ATT amount of drift

Amount horizontal play at the bucket tooth

25 ~ 55

mm/5min

(At no load)

mm


[MEMO]


10. HYDRAULIC CIRCUIT DIAGRAM SK75UR-3E

Applicable machine : YR05-05301-

-60-


Relief valve set pressure Unit Valves

Main relief valve Over load relief valve

Slewing relief valve Pilot relief valve

-61-


SK130UR-1E

Applicable machine : YX03-01601-

-62-


-63-


11. ELECTRIC CIRCUIT DIAGRAM SK75UR-3E

-64-


-65-


-66-


-67Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S7YO00207ZE01] [0604CsCshWbYs]

SK130UR-1E







12. MECHATRO CONTROL SYSTEM SK75UR-3E MECHATRO CONTROL SYSTEM IN GENERAL ELECTRIC

CONTROLLER INPUT OR OUTPUT SIGNAL HYDRAULIC PILOT SECONDARY PRESSURE

FRONT SE-12 A

SOLENOID VALVE SECONDARY PRESSURE

SOLENOID INVERSE PROPORTIONAL VALVE SECONDARY PRESSURE PILOT PRIMARY PRESSURE MAIN CIRCUIT LH

RH

REAR B SE-11 INVERSE PROPORTIONAL SOLENOID VALVE

OFF-SET PILOT VALVE 7 LH

RH

PILOT VALVE FOR ATT

8 PLOT VALVE FOR TRAVEL

3 4

P1 ARM IN PSV-1 P2 ARM OUT PSV-2 P3 BOOM UP PSV-3 P4 BOOM DOWN PSV-4

SE-9

P5 OFF-SET LEFT PSV-5

SE-10 ROTARY MULTI CONTROL VALVE

GAUGE CLUSTER DISPLAY H/S/FC SELECT

SE-4 SE-3 SE-2 SE-1

SWITCH PANEL

E G A T L O V T U P T U O

SE-8 SE-7 SE-6

H/S/FC SELECTION N O I T A C I ACCEL DIAL N U SE-16 M M O L C A L N A I O I R T E E R G S O A R T O L R O P V

SE-5

T N E R R U C D N A M M O C L A N O I T R O P O R P

E G A T L O V

MECHATRO CONTROLLER

A1 A2 A3 A4 A5

SE-19 OFF-SET

SE-18 ARM

SE-17 BOOM E G A T L O V T U P T U O

ENGINE GOVERNOR MOTOR

COMMAND CURRENT

MAIN PUMP

GEAR PUMP

PILOT PUMP

SPEED SENSOR

: ENGINE SPEED SENSOR : GOVERNOR MOTER : LOW PRESSURE SENSOR PROPORTIONAL COMMAND CURRENT

: ACCEL DIAL POTENTIOMETER

VOLTAGE 24V


BOOM CYLINDER BOOM UP CONFLUX

C/V UPPER SIDE 8

S E S V 2 A T L P P U Y C A B V X U E M L O F V L O N A B O V C

5

G N I W E L S

M R A

7

Fr

6

T F E L L E V A R T

Fr T H G I A L R E T V S A R T

Re

3

T H G I R L E V A R T

M O O B

Re

4

1

T E K C U B

T E S F F O

ARM CYLINDER ARM OUT CONFLUX ARM IN CONFLUX

E V L A V S T S U A C P Y B

OFF-SET CYLINDER

2

SLEWING MOTOR PARKING BRAKE RELEASE

TRAVEL MOTOR 1,2-SPEED SELECT

INVERSE PROPO. SOLENOID VALVE PORT OPERATION MODE

A1

A2

A3

A4

A5

PSV-C

PSV-B

BOOM LOW SPEED ARM LOW SPEED OFF-SET LOW SPEED OFF-SET LEFT LIMIT CAB INTERFERENCE PREVENTION HEIGHT LIMITATION DEPTH LIMITATION E E E V V V L L L A A A V V V . . . O T O O P H P P T O I G T O U R A O U R C P R R P C P S T S S S S A L A P E P Y V Y B A B 2 R 1 P T P

E K A R B G N I K R A P G N I W E L S

T F I H S R E W O P C / A

D E E P S 2 , 1 L E V A R T

K C O L R E V E L

K / C O E L V B L A D I V O O N P E L O R O P S

PSV-B P SV-C PSV-D SV-1 SV-2 SV-3 SV-4

LEVER LOCK SW-11

PORT OPERATION MODE

PSV-D

P1 TRAVEL P2 BYPASS CUT STRAIGHT BYPASS CUT

BOOM UP CONFLUX ARM SLEWING TRAVEL RIGHT & BOOM , BUCKET AND OFF-SET TRAVEL LEFT & SLEWING AND ARM TRAVEL RIGHT AND LEFT , BOOM OR BUCKET OR SLEWING OR ARM


SK130UR-1E MECHATRO CONTROL SYSTEM IN GENERAL ELECTRIC

CONTROLLER INPUT OR OUTPUT SIGNAL HYDRAULIC PILOT SECONDARY PRESSURE SOLENOID VALVE SECONDARY PRESSURE

SOLENOID INVERSE PROPORTIONAL VALVE SECONDARY PRESSURE PILOT PRIMARY PRESSURE MAIN CIRCUIT

FRONT SE-12 A

REAR B SE-11

OFF-SET PILOT VALVE 7 LH

RH

LH

RH

PILOT VALVE FOR ATT

8 3

PLOT VALVE FOR TRAVEL SE-9

4

P5 P4 P3 P2 P1

SE-10

GAUGE CLUSTER DISPLAY H/S/FC SELECT

SWITCH PANEL

H/S/FC SELECTION N O I T A C I ACCE L DIA L N U SE-16 M L M A O N C O L I T E A I R G R O A E R T S O L R O P V

E G A T L O V

E V L A V L O R T N O C I T L U M Y R A T O R T U O H T I W

L A N D T O N I N T A E M R R R O M P O U O C C R P

LOW PRESSURE SENSOR SE-4 4 SE-3

3

SE-2

SE-7

T E S F F O

SE-19 OFF-SET

8

E N L O I B T A E I A V R L L A U A V C R V I M C R A E R

SE-18 ARM

7

5

SE-17 BOOM

E G A T L O V T U P T U O

OUTPUT VOLTAGE

HIGH PRESSURE SENSOR

A3

SE-22

C-1

A2 SE-23

A1

MECHATRO CONTROLLER

ENGINE GOVERNOR MOTOR

M-2

SPEED SENSOR

SE-13

PSV-P1 P1 PUMP PROPO.VALVE

: ENGINE SPEED SENSOR

PSV-P2 P2 PUMP PROPO.VALVE

: GOVERNOR MOTER

E E N V V L L O I A T T A V H A T V . G . L I E O O L U U P A P C C B O R O R A S T I I S R S R C A P P R L E A P V R Y E V M B A R 2 R A P T PSV-A PSV-B PSV-C P

: HIGH PRESSURE SENSOR : LOW PRESSURE SENSOR

S i P

1

6 SE-5

T F E L

2

SE-1 SE-8

INVERSE PROPORTIONAL SOLENOID VALVE ARM IN A5 PSV-1 ARM OUT A4 PSV-2 BOOM UP A3 PSV-3 BOOM DOWN A2 PSV-4 OFF-SET LEFT A1 PSV-5

PROPORTIONAL COMMAND CURRENT VOLTAGE 24V

: ACCEL DIAL POTENTIOMETER


BOOM CYLINDER BOOM UP CONFLUX C/V UPPER SIDE S i P

1 B P

7

E N L O I B T A E I A V R L L A U A V C R V I M C R A E R

M R A

8

X U E L V M L R F A A N O V C S E S V A L P A Y V B T 2 U P C

a C R

E S R E V E R

5

T F E L L E V A R T

G N I W E L S

6

E S R E V E R

T H G I A L R E T V S A R T

D R A W R O F

T H G I R L E V A R T

D R A b W T R P O F

2

T E K C U B

1

b

c 3 R

M O O B

ARM C YLIND ER ARM O UT CO NFLU X ARM I N CO NFLUX

S E S V A L P A Y V B T 1 U P C X U E L V M L R F A A N O V C

4

OFF-SET CYLINDER

1 A P

SLEWING MOTOR PARKING BRAKE RELEASE

TRAVEL MOTOR 1,2-SPEED SELECT System summary P1, P2 pump is controlled by

Furtures 1

proportional valve. 2 Part of the control valve is controlled

3

by the proportional

4

valve. The main spool is E E E V V K L L A A A R V V B . T . O U O G P C P N I O S O K R S R R P A P G A P N P I Y B W 1 E P L S

5

controlled D E E P S 2 , 1 L E V A R T

K C O L R E V E L

K / C O E L V B L A D I V O O N P E L O R O P S

hydraulically.

6

7

8

V-C P SV-D S V-1 SV -3 S V-4

9

LEVER LOCK SW-11

P1 pump is controlled by proportional valve. P2 pump is controlled by proportional valve. The travel straight valve is controlled by proportional valve. The bypass cut valve is controlled by proportional valve. The arm variable recirculation valve is controlled by proportional valve. The swing action is controlled by P2 bypass cut valve(=proportional valve.) The arm action is controlled by P2 bypas cut valve (=proportional valve). Make the controllability of arm and slewing combined operation soft. The open and close actions of the swing P/B are controlled by solenoid valve. Electric cushioning for cylinder. Make the shock at stroke end weak.

Cab interference prevention 10 Make the shock at stop motion soft in interference area.

Purpose A) The po wer cu rve sha ll be an ideal curve. B) Supply an optimum flow for each operation. • Make the changeover soft.

• Make the changeover soft. • Control the arm speed as you desire. • Make the controllability soft.

• Make the shock at stroke end weak. • Make the shock at stop motion soft in interference area.


SUMMARY OF MECHATRO CONTROLLER ELECTRO-HYDRAULIC CONVERSION INFORMATION IS DISPLAYED ON THE MULTI DISPLAY OF THE GAUGE CLUSTER.

MACHINE FRONT CAB INTERFERENCE PREVENTION RELEASE SWITCH

UNDER OPERATOR SEAT MECHATRO CONTROLER

RIGHT HAND OPERATOR CONTROL LEVER KPSS WORK MODE RELEASE SWITCH SWING PARKING BRAKE RELEASE SWITCH CAB INTERFERENCE PREVENTION RELEASE SWITCH AUTO ACCEL RELEASE SWITCH

GAUGE CLUSTER

SWITCH PANEL DOZER BLADE CONTROL LEVER

ACCEL DIAL

STARTER SWITCH (ENGINE KEY) GAUGE CLUSTER

SWITCH PANEL

The work mode selector switch contains the following function

(1) Work mode "H" (2) Display item roll forwarded when in service diagnosis operation (3) Display item roll forwarded in trouble history operation (4) Time display roll forwarded when correcting E/G oil supply cumulative time. Buzzer stop switch contains the following functions. (1) Stops the warning sounding. (2) Display item rollbacked in service diagnosis operation.

MULTI DISPLAY

(3) Display item rollbacked in trouble history operation. (4) Time display rollbacked when correcting E/G oil supply cumulative time.

HEIGHT, DEPTH, LEFT OFF-SET SWITCH PANEL FOR CAB INTERFERENCE PREVENTION SCREEN CHANGE SWITCH


The functions displayed on the multidisplay are classified roughly into the following 8 types * 1. CPU error display ........................... Display the error of the mechatro controller, etc. * 2. Self-diagnosis display .................... Displays the failure of the I/O system of the mechatro controller such as the low and high pressure sensors, governor motor, proportional valve, angle sensor solenoid valve, etc (43 items) ............... 3. Service diagnosis display Displays the information output by the mechatro controller such as the pressure sensor detection, proportional valve, solenoid valve, etc. (30 items) .................... 4. Trouble history display Stores and displays the contents of the troubles detected though the mechatro self diagnosis. 5. Mechatro "A" adjustment display .... Displays it by procedure during the mechatro "A" adjustment. 6. E/G oil supply cumulative (integrated) time .... Displays the E/G oil supply cumulative time and E/G speed (rpm) list. * 7. Cab interference prevention system ..... When attachment is closing to cab, it will be stopped automatically. In this time, the failure of adjustment and fail of angle sensor are displayed on the self-diagnosis. This cab interference prevention has the following five functions. (1) Cab interference prevention function. (2) Height/Depth display function. (3) Height limitation function. (4) Depth limitation function. (5) Off-set left limitation function. ................. * 8. Electric cushion function The cylinder speeds in the motions of boom up, arm in/out and off-set left are reduced at near the stroke end of cylinder. In this time, the failure of boom & arm angle sensors and solenoid valves errors are displayed in the self-diagnosis. ............................. 9. Warning displays When the machine is normal after self-diagnosis but the actual operation fails. For these displays, refer to the next page. Marks * are displayed in each time of occurrence.

SELF DIAGNOSIS DISPLAY FUNCTION (1) Summary It performs self diagnosis of control inputs and outputs of pressure sensors and proportional valves while the machine is in ioeration. Wire numbers and colors may be confirmed on the electric diagram or on the harnesses. (2) I/O configuration INPUT

SERIAL COMMUNICATION

Pressure sensor

Gauge cluster

Proportional valve Selector valve (SOL) Potentiometer

l o r t n o C

(Buzzer alarm)

Governor motor Battery relay


SK75UR-3E SK130UR-1E .

SELF-DIAGNOSIS INDICATION ITEM No.

Contents

Display of monitor 1.

MECHATRO CONT. FAIL

A-1

ROM DATA FAILURE

A-2

MECHATRO SET ERROR

1

Mechatro controller fail

2

ROM data fail

3

Mechatro set error

4

Boom raising pressure sensor fail

B-1

5

Boom lowering pressure sensor fail

B-2

6

Arm in pressure sensor fail

B-3

7

Arm out pressure sensor fail

B-4

8

Bucket digging pressure sensor fail

B-5

9

Bucket dump pressure sensor fail

B-6

10

Swing right pressure sensor fail

B-7

11

Swing left pressure sensor fail

B-8

12

Travel right pressure sensor fail

B-9

13

Travel left pressure sensor fail

B-10

14

Off set left pressure sensor fail

B-14

15

Off set right pressure sensor fail

B-13

16

P1 pump pressure sensor fail

C-1

17


C-2

18

P1 bypass cut propo valve fail

D-1 PSV

P1 BYPASS CUT PROPO-VALVE

19

P2 bypass cut propo valve fail

D-2 PSV

P2 BYPASS CUT PROPO-VALVE

20

Travel priority propo valve fail

D-3 PSV

TRAVEL PROPO-VALVE

21

Boom up stop proportional valve fail

D-4 PSV

BOOM RAISE PROPO-VALVE

22

Boom down stop proportional valve fail

D-5 PSV

BOOM LOWER PROPO-VALVE

SE

BOOM RAISE SENSOR

SE

BOOM LOWER SENSOR

SE

ARM IN SENSOR

SE

ARM OUT SENSOR

SE

BUCKET DIG SENSOR

SE

BUCKET DUMP SENSOR

SE

SWING (R) SENSOR

SE

SWING (L) SENSOR

SE

TRAVEL (R) SENSOR

SE

TRAVEL (L) SENSOR

SE

OFFSET (L) SENSOR

SE

OFFSET (R) SENSOR

SE

PUMP P1 SENSOR

SE

PUMP P2 SENSOR


No.

Contents

Display of monitor

23

Arm variable recirculation proportional valve fail

D-6

24

Arm out proportional valve fail

D-7

25

Arm in proportional valve fail

D-8

26

Off-set left proportional valve fail

D-10

27


E-1

28


E-2

29

Travel two-speed solenoid valve fail

F-3

30

Swing parking solenoid valve fail

F-2

PSV

RECIRCULAT PROPO-VALVE

PSV

ARM OUT PROPO-VALVE

PSV

ARM IN PROPO-VALVE

PSV

OFFSET (L) PROPO-VALVE

PSV

PUMP P1 SENSOR

PSV

PUMP P2 SENSOR

SV

TWO-SPEED SOLENOID

SV

SWINGBRAKE SOLENOID

G-1 M

STEP MOTOR CURRENT-NG

M

STEP MOTOR S/PT. ERROR

POT

SET ERROR BOOM RAISE

31

Governor motor current fail

32

Governor motor starting point indexing fail

G-2

33

Interference prevention boom up setting error

A-4

34

Interference prevention arm in setting error A-5

POT

SET ERROR ARM IN

35

Interference prevention arm out setting error

A-6

POT

SET ERROR ARM OUT

36

Interference prevention off-set right setting error

A-7

POT

SET ERROR OFFSET (R)

37

Interference prevention off-set left setting error

A-8

POT

SET ERROR OFFSET (L)

38

Boom potentiometer fail

POT

BOOM POTENTIO

39

Arm potentiometer fail

POT

ARM POTENTIO

40

Off-set potentiometer fail

POT

OFFSET POTENTIO

41

Accel potentiometer fail

42

Gauge cluster Mechatro controller communication failure

43

Battery relay fail

H-2 H-3 H-4 H-1

→

POT

ACCELERATR POTENTIO

I-1

RECEIVE ERROR

I-2

BAT. RELAY


SK75UR-3E . SK130UR-1E TROUBLE HISTORY DIAGNOSIS

4) To scroll the page, use the work mode selector switch and the buzzer stop switch.

The error item detected by the self-diagnosis is stored in the mechatro controller as a history and is displayed on the multidisplay.

. Press the work mode selector switch (H), page up.

. Press the buzzer stop switch, page down.

(1) How to display 1) Turn the engine key on. 2) Press the buzzer stop switch 5 times in sequence for 10 seconds. (Example) CONTENTS

DISPLAY

No errors

Note : All the error items are stored by hour meter, when the hour is differed, press the work mode selector switch (H) or the buzzer stop switch, and displays all items and make sure that they are right.

NO ERROR 00025H

Error detected in the past

5) Turn the engine key off, and the display is disappeared.

B-1 BOOM RAISE D-1 P1 BYPASS F-3

TWO-SPEED

(2) How to cancel the contents of the trouble history 1) Display the trouble history mode.

3) Transmits the error data (one or many) and hour meter to the gauge cluster.

2) Press the work mode selector switch (H) and the buzzer stop switch for 10 seconds or more simultaneously.

. Hour meter and 3 error data are displayed on the screen.

3) When the deletion is completed, the is displayed.

. If three error data or more exist, display the data three by three in order for every 5 seconds.

4) Turn the engine key off.

Note : All the stored items are erased. It is impossible to erase data partially.


(3) CONTENTS OF THE TROUBLE HISTORY Symbol

A

B

C

Display A–1 ROM DATA Controller relation A–2 MEC. SET A–4 BOOM RAISE A–5 ARM OUT Interference A–6 ARM IN prevention A–7 OFF-SET (R) A–8 OFF-SET (L) B–1 BOOM RAISE B–2 BOOM LOWER B–3 ARM OUT B–4 ARM IN B–5 BUCKET DIG Low pressure B–6 BUCKET DUMP sensor B–7 SWING (R) B–8 SWING (L) B–9 TRAVEL (R) B–10 TRAVEL (L) B–13 OFFSET (R) B–14 OFFSET (L) High pressure C–1 PUMP P1 sensor (Hydraulic pump) C–2 PUMP P2

Symbol

D

E F G

H I

Display D–1 P1 BYPASS D–2 P2 BYPASS D–3 S-TRAVEL D–4 BOOM RAISE Proportional valve D–5 BOOM LOWER (Control valve) D–6 RECIRCULAT D–7 ARM OUT D–8 ARM IN D–10 OFF-SET (L) Proportional valve E–1 PUMP P1 (Hydraulic pump) E–2 PUMP P2 F–2 SWING BRAKE Solenoid valve F–3 TWO-SPEED G–1 CURRENT-NG E/G Accessory G–2 S/PT.ERROR G–3 E/G REV. H–1 ACCEL Potentio relation H–2 BOOM H–3 ARM H–4 OFF-SET I–1 MONITOR I–2 BAT. RELAY MONITOR SYSTEM OK


HOW TO CORRECT Procedure

A

B

Operating procedure

Display on multidisplay (Example) (Normal)

Turn the starter switch “ON”.

DEPTH 1.0m

E/G speed is displayed

Press the gauge cluster screen change switch once,

DEPTH 1.0m

and the E/G speed (rpm) is displayed.

is displayed. Press once

E/G speed is displayed Press once more 2250RPM

2250RPM

C

Press once more, and the engine oil supply cumulative time screen is displayed.

D

Press the screen change switch for 5 to 10 seconds and release the hand, it returns to the correction mode.

100Hr AFT E/G OIL CH

E

Press the work mode selector switch (H), and the cumulative time increases. (once 1Hr)


Cumulative time increases


Press the buzzer stop switch, the cumulative time


Cumulative time decreases

99Hr AFT E/G OIL CH

F

G

decreases. (once 1Hr)

Press the gauge cluster screen change switch once the correcting time is stored, and exits from the correction mode and “Depth” is displayed to complete the correction.

DEPTH 1.0m



(Normal) 99Hr AFT E/G OIL CH

Complete the correction

DEPTH 1.0m

Note : Press the screen change switch once after the procedure D, and the condition is stored and the correction is completed.


13. DIMENSIONS OF ATTACHMENT SK75UR-3E SK130UR-1E .

BOOM

SK130UR

VIEW I Front boom left

I

Front boom right

A : Boom length B : Distance between boom foot pin and rear boom bracket pin C : Width of boom foot D : Distance between boom foot pin and boom cyli nder rod pin bracket E : Radius from boom foot pin to pin of boom cylinder rod pin F : Inner width (SK75UR-3E), Outer width (SK130 UR-1E) G : Inner width of boss H : Distance between pins I : Distance between pins J : Inner width of boss K : Inner width of bracket L : Distance between pins

M : Distance between pins N : Inner width of boss O : Outer width of boss P : Distance between pins Q : Inner width of boss R : Inner width of bracket S : Distance between pins T : Distance between pins U : Distance between pins V : Outer width of boss W : Outer width of boss X : Distance between pins

Y : Distance between pins Z : Inner width of boss d1 : Pin dia. d2 : Pin dia. d3 : Pin dia. d4 : Pin dia. d5 : Pin dia. d6 : Pin dia. d7 : Pin dia. d8 : Pin dia.



BOOM SK75UR-3E A B C D E F G H I J K L M N O P Q R S T U V W X Y Z d1 d2 d3 d4 d5 d6 d7 d8

3,870 1,478 360 1,212 R1,900 100 354 60 370 304 332 378 R658 273 362 370 215 253 350 60 1,590 353 303 181 R203 100 60 75 60 55 55 55 55 70

SK130UR-1E 4,370 1,696 574 1,178 R2,050 400 465 80 400 336 346 535.5 R890 305 421 400 232 253 440 80 1,800 464 335 231.5 R248 108 70 80 70 70 70 70 70 90



ARM Y C Z

E D X

X

B

G

F

Z

A Y P

d5 Q M N d4 SECTION Z-Z D1 d1

H J

D2 d2

K

d3

D3 L

SECTION X-X

SECTION Y-Y

A : Arm length B : Distance between pins of boss and bracket C : Distance between pins of boss and bracket D : Distance between pins of boss and boss D1 : I.D of boss D2 : I.D of boss D3 : I.D of boss E : Height between pins of boss and bracket F : Height between pins of boss and bracket G : Height between pins of boss and center H : Arm top end (with bushing) J : Boss width K : Boss width of arm link

L : Boss width M : Bracket inner width N : Bracket inner width P : Link dimension Q : Link dimension d1 : Pin dia. d2 : Pin dia. d3 : Pin dia. d4 : Pin dia. d5 : Pin dia.



ARM

A B C D E F G H J K L M N D1 D2 D3 d1 d2 d3 d4 d5

SK75UR-3E

SK130UR-1E

1,760 R420 R1,511.5 R240 450 280 15 180 162 180 210 90 102 65 60 75 50 50 60 50 65

2,200 R572.5 R1,831 R355 514.5 300 10 250 232 210 226 100 106 80 75 85 65 60 70 60 75



BUCKET

G

E

d2 A

I

I0 H F

I

d1

B

D C

A : Distance between pin and bracket B : Distance between bracket pin and tooth end C : Inner width of bracket top end D : Inner width of lug E : Inner width of bracket F : Outer width of side cutter G : Inner width of bucket bottom H : Tooth outer distance I : Pitch between teeth I0 : Pitch between teeth d1 : Pin dia. d2 : Pin dia.



m )

m :

0 n

0

2 0

9 1

7.

6.

ti

,1

2

2

i 6

5

c

5

,1 9

1

yt

6 5

8

0(

U

. 0 1

a . yt p i a c c a k p

) 7 0(

9

5.

2

0

0

0

5. 6

0

2 0(

8

0 6

0

0

e n

ht s

o

7

9

w

5.

5.

h

9

9

et s ) a

0

3 ci d

1

(

1 in *

ni kr

e

s

2

0

9

2

8

8

0(

7

9

6

7

2

2

7

1

4

7

ul a

0 *

K

d

s a

3

3 1

4.

1

2

t

8

s

4. 3

0

0,

)

0

2

1

9 0

4.

U

1

1

8

ur dr

8 0,

1

5 5.

5

5.

3 1,

)

R

0

5.

c

at

0

E 1 -

0 9

c a

2

a

2 M

V : et o

S N ) 8

3 2

0

9

0

1

1

0(

6

8

5

7

1

1

3.

3. 0

6

)

0

1

9

9

2

0

9

0

7

7

0(

5

7

4

6

2

2

.2 6

0 e

0

7 .3

t

3

0

3

0

3

3

k c u B

5

) 4

0 0(

3

2.

2

2 2

4

2

3

3

0

7

7

1

4

3

2

5

3

5

1

1

2,

2. 0

7

6 R

2

) 8

0

0I

1

2

0

8

0(

5

1

1

8

6

9

0

0

2

6

6

0

0(

4

6

5

4

1

1

5

)

5

8

6

6

0

0

2

6

3

3

0(

3

5

4

3

1

1

1. 5

5

8

6

5

6 1.

8

8

0 0

K

5

6 6

2.

0

4

2

2.

7

5

8

7

5

)

5

0

8

0

2

8

0

5

5

*

U

8

0 2.

0

R

9

5 2.

E 3 -

5

6

8

8

S 7 ) 4

0

3

7

1

2

4

4

2

1. 0

8

0( ) 0 0(

2

0

0 1. 0

9

yt d a

3

i e c o a

p

5.

5. 4

4

8

1

8

9 1

1

8

8

2

0

0

2

6

6

3

2

1

4

4

2

1

1

9

1.

l

5

R

1

M

1 0,

1.

t n e m p i u q E

3 3

1

3

9 R

8

0

0

9

4

6

5

m(

) A

B C

D

E

F G

H

I

d

d

C



DIMENSION OF LUG SECTION

SECTION BB BOSS I 2418P26830(75UR) 2418P26832(130UR)

PLATE

BOSS II 2418P27140(75UR) YY61B01005P1(130UR)

SECTION AA

PLATE

X

Shim(t=1.0) SHIM (t=1.0)

ITEM

DETAIL X

Pin hole Lug plate Bush thickness length dia

Unit : mm

Hole dia.

Spring pin dia.

Boss outer dia.

Screw dia.

Boss width

Boss outer dia.

Boss width

Screw hole P.C.D

E

F

G

H

J

M

N

MODEL

A

B

C

D

SK75UR-3E

50

19

53

65

8

110

M12

19

110

28

91

SK130UR-1E

65

22

64

80

10

146

M14

22

138

36

115



DIMENSION OF BOSS X

H

G

5 I

A

C

B

D

15 DETAIL X E F

Unit : mm ITEM

A

B

C

D

E

F

G

H

I

SK75UR-3E

82.6

54

75.5±0.2

80.5

23 (19)

38 (34)

13

10

2.5

SK130UR-1E

101.6

69

94.5±0.2

99.5

19 (15)

34 (30)

15

13

2.5

MODEL

Note : Values in ( ) show the dimension for boss II.


DIMENSION OF DOZER SK75UR-3E

SK130UR-1E

E

E G A

d1

d2

G

D

D G

d2

E

E d2

d1

d1

F F B

B C

C

UNIT : mm CODE

MODEL

ITEM

A B C D E

Blade width Blade height Distance from dozer attaching pin center to cutting edge end Inner width of dozer attaching bracket Width of dozer attaching bracket Distance from dozer attaching pin center to attaching pin on F dozer cylinder head side G Attaching bracket inner width on dozer cylinder head side d1 Dozer attaching pin dia. d2 Attaching pin dia. on dozer cylinder head side

SK75UR -3E

SK130UR -1E

2,320 470 R1,375 653 60

2,490 590 R1,633 672 128

R933

R881

82 50 70

92 60 60


14. MAINTENANCE STANDARD 14-1 CLEARANCE OF PIN AND BUSHING SK75UR-3E . SK130UR-1E (L) Off-set cylinder rod side pin

(M) Off-set cylinder head side pin

(J) Front boom attaching pin

(I) Upper boom attaching pin

(N) Boom cylinder rod side pin

(K) Boom foot pin

(J) Front boom attaching pin

(G) Arm cylinder attaching pin (I) Upper boom attaching pin (H) Upper boom top pin

(O) Boom cylinder head side pin

(F) Arm cylinder rod side pin (E) Bucket cylinder head side pin

(B) Bucket drive pin

(C) Idler link pin (A) Arm point pin

(D, *D) Bucket cylinder rod side pin

(Q) Dozer cylinder rod side pin

(P) Dozer cylinder head side pin

(R) Dozer foot pin DOZER BLADE


CLEARANCE OF PIN AND BUSHING SK75UR-3E

Unit : mm Standard value

Symbol

Item

A

Arm point

B

Bucket link (Bucket link connection)

C

Idler link (Arm connection)

Pin dia.

Pin dia. Bushing i.d. Standard Repairable Service Remedy tolerance tolerance value level limit

+0.11 +0.21

-0.06 -0.09 +0.12 +0.05

+0.11 +0.24

50 D *D

Bucket cylinder (Rod side) Bucket link (Idler link connection)

-0.06 -0.12

E

Bucket cylinder (Head side)

F

Arm cylinder (Rod side)

65

G

Arm cylinder (Head side)

70

H

Arm foot

60

I

Upper boom 55

J

Front boom

K

Rear boom

L

Off-set cylinder (Rod side)

-0.06 -0.09

60

55 M

Off-set cylinder (Head side)

N

Boom cylinder (Rod side)

O

Boom cylinder (Head side)

P

Dozer foot

Q

Dozer cylinder (Head side)

-0.06 -0.12 75

R

Dozer cylinder (Rod side)

Clearance

+0.25 +0.05 +0.20 +0.00

+0.11 +0.37 +0.06 +0.32

+0.25 +0.05

+0.11 +0.37

+0.20 +0.08

+0.14 +0.29

+0.12 +0.06

+0.12 +0.21

+1.00 +0.03

+0.09 +0.19

+0.25 +0.05

+0.11 +0.37

+0.06 +0.32 +0.12 +0.28 +0.11 +0.37

50

-0.06 -0.09

+0.20 +0.00 +0.19 +0.06

70

-0.06 -0.12

+0.25 +0.05

More than 1.2

2.0

Replace bushing or pin


SK130UR-1E

Unit : mm Standard value

Symbol A

Item Arm point

B

Bucket link (Bucket link connection)

C

Idler link (Arm connection)

D

Bucket cylinder (Rod side)

* D

Pin dia.

Bucket link (Idler link connection)

E

Bucket cylinder (Head side)

F

Arm cylinder (Rod side)

65

60

G

Arm cylinder (Head side)

H

Arm foot

I

Upper boom

J

Front boom

K

Rear boom

L

Off-set cylinder (Rod side)

M

Off-set cylinder (Head side)

N

Boom cylinder (Rod side)

Pin dia. Bushing i.d. Standard Repairable Service Remedy tolerance tolerance value level limit

-0.020 -0.060

0 -0.060

+0.233 +0.176 +0.236 +0.179 +0.252 +0.196 +0.243 +0.189 +0.180 +0.100

75

+0.030 -

70

70

+0.256 +0.069

+0.231 +0.160

+0.261 +0.130

0 -0.030

+0.230 +0.164

+0.260 +0.164

0 -0.060

+0.233 +0.164

+0.293 +0.164

+0.030 -

+0.180 +0.100

+0.210 +0.070 +0.247 +0.082 +0.255 +0.068 +0.440 +0.280 +0.320 +0.060

O

Boom cylinder (Head side)

+0.030 -

P

Dozer foot

-0.150 -0.210

Q

Dozer cylinder (Head side)

R

Dozer cylinder (Rod side)

-0.060 -0.120

+0.200 0

60

+0.313 +0.196 +0.316 +0.199 +0.312 +0.196 +0.303 +0.189 +0.240 +0.100 +0.210 +0.070

+0.226 +0.099

+0.187 +0.082 +0.225 +0.098 +0.230 +0.130

80

Clearance

0 -0.060

More than 1.2

2.0


Replace bushing or pin

14-2 CLEARANCE IN THRUST DIRECITON SK75UR-3E Unit : mm

A B C D D' E F G H I J K L M N O P Q R

Standard Repairable value level

Item

Basic size

Arm Bucket Link side Bucket link Bucket Arm Idler link (Arm connection) Link side Rod side Bucket link (Idler link connection) Link side Rod side Bucket link (Rod side) Bucket link Head side Bucket cylinder Arm (Head side) Rod side Arm cylinder Arm (Rod side) Head side Arm cylinder Bracket (Head side) Arm Arm foot Boom Front Boom Front boom (Front side) Bracket Front Boom Front boom Rear Boom (Rear side) Rear Boom Boom foot Upper frame Rod side Off-set cylinder Front Boom (LH) (Rod side) Head side Off-set cylinder (Head side) Front boom (RH) Rod side Boom cylinder (Rod side) Rear Boom Head side Boom cylinder Upper frame (Head side) Dozer Dozer foot Lower frame Head side Dozer cylinder (Head side) Dozer Rod side Dozer cylinder Lower frame (Rod side)

180 182

0.1~1.0

-

0.6 or less

Section

Arm point

182 180

-

85

0.5 or less

1.2 or more

Service limit

Remedy

2.0

--------1.0 or more 2.0

0.6~1.0

1.2 or more

0.6~2.0

2.0 or more

0.6~1.0

1.2 or more

-

85 90 95 102 268 273 210 215 303 304 353 354 360 365 95 100 95 100 95 100 95 100 60 63 80 82 80 82

2.5

1.0 or more 2.0 0.5 or less

Shim adjustment

1.2 or more

0.6~2.0

2.0 or more

2.5

0.6~1.0

1.2 or more

2.0

0.6~2.0

2.0 or more

2.5

0.6~1.0

1.2 or more

2.0

1.0~2.0

2.0 or more

3.0

Note : When the clearance exceed upper limit of standard value,adjust it with shim.


SK130UR-1E Item

Basic size

Arm Bucket link side Bucket link Bucket Arm Idler link (Arm connection) Link side Rod side Bucket link (Idler link connection ) Link side Rod side Bucket link Bucket link (Rod side) Head side Bucket cylinder Arm (Head side) Rod side Arm cylinder Arm (Rod side) Head side Arm cylinder Bracket (Head side) Arm Arm foot Boom Front Boom Front boom (Front side) Bracket Front Boom Front boom (Rear side) Rear Boom Rear Boom Boom foot Upper frame Rod side Off-set cylinder Front Boom (LH) (Rod side) Head side Off-set cylinder Front boom (RH) (Head side) Rod side Boom cylinder Rear Boom (Rod side) Head side Boom cylinder (Head side) Upper frame Dozer Dozer foot Lower frame Head side Dozer cylinder Dozer (Head side) Rod side Dozer cylinder Lower frame (Rod side)

250

Section

A B C D D' E F G H I J K L M N O P Q R

Arm point

-

252 210

Standard Repairable value level 0.6~1.0

1.2 or more

0.5 or less

1.0 or more

0.6~1.0

1.2 or more

0.6~2.0

2.0 or more

0.6~1.0

1.2 or more

0.5 or less

1.0 or more

Service limit

Remedy

2.0

-

244 90 98 90 100 100 106 300 305 226 232 335 336 464 465 574 581 100 108 100 108 80 400 90 94 128 150 90 92 90 92

2.5

2.0 1.2 or less 1.2 or more 0.5 or less 0.6~2.0 or less

2.0 or more

2.5

0.6~1.0 or less

1.2 or more

2.0

0.6~2.0 or less

2.0 or more

2.5

0.6~1.0 or less

1.2 or more

2.0

1.0~2.0

2.0 or more

3.0

Note : When the clearance exceed upper limit of standard value,adjust it with shim.


Shim adjustment

14-3 TYPE AND DIMENSION OF PIN SK75UR-3E . SK130UR-1E (O) Off-set cylinder rod side pin

(E) Upper boom attaching pin

(N) Off-set cylinder head side pin

(D) Front boom attaching pin (C) Boom cylinder rod side pin

(A) Boom foot pin

(D) Front boom attaching pin

(F) Arm cylinder attaching pin (E) Upper boom attaching pin (G) Upper boom top pin

(B) Boom cylinder head side pin

(H) Arm cylinder rod side pin (I) Bucket cylinder head side pin

(M) Bucket drive pin

(J) Idler link pin (K) Arm point pin

(L) Bucket cylinder rod side pin

(Q) Dozer cylinder rod side pin

(R) Dozer cylinder head side pin

(P) Dozer foot pin DOZER BLADE


SK75UR-3E . SK130UR-1E TYPE OF PIN 1

2

L1 L2

L2 2

2

1

D

D

32

L1

3

1

D

4

D

L1

L1 L2

1

D 1

D

5

6

L2 1

D

1

D

L2 L1

L1

7

8

2

1

D

L1 L2

13

L1 L2

13

D 1

D

L2 L1 9

(SK75UR -3E )9 (SK130UR -1E )10

10

L2 1

1 2

D

D D

L1

-99Copyright Copyright © 2015 Kobelco Kobelco Construction Machinery Co.,Ltd. Co.,Ltd. All rights reserved. [S7Y [ S7YO00 O00207Z 207ZE01] E01] [0604CsCshWbYs] shWbYs]

SK75UR-3E . SK130UR-1E 11

12

L1

L1

L2

1

L2

1

2

D D

2

D D

13

14

L1 1

2

L2

D

D

1

2

D D

L1

15

L1 L2 1

2

D D


SK75UR-3E . SK130UR-1E DIMENSIONS OF PIN Unit : mm Model

SK75UR-3E

SK130UR-1E

Type of pin

L1

L2

D1

D2

Type of pin

L1

L2

D1

D2

A Boom foot pin

1

481

466

60

59

2

775

716

70

73

B Boom cylinder head pin

3

180

-

75

-

3

180

-

80

-

C Boom cylinder rod pin

4

233

216

75

-

5

631

597

80

-

D Front boom attaching pin

4

483

466

55

-

4

616

599

70

-

E Upper boom attaching pin

6

404

387

55

-

6

424

407

70

-

F Arm cylinder attaching pin

7

123.5

109

85

70

13

124

-

90

75

G upper boom top pin

3

328

-

60

-

3

315

-

70

-

H Arm cylinder rod pin

4

206

192

65

-

3

210

-

75

-

I

Bucket cylinder head pin

4

185

168

50

-

4

214

197

60

-

J

Idler link pin

8

263

246

50

-

14

368

328

60

57

9

371

303

50

48

9

470

391

65

62

10

263

246

50

-

15

368

328

60

57

M Bucket drive pin

9

371

303

50

48

9

470

391

65

62

N Off-set cylinder head pin

3

163

-

55

-

3

185

-

70

-

O Off-set cylinder rod pin

3

163

-

55

-

3

185

-

70

-

P Dozer pin

11

132

118

50

48

9

235

218

60

-

Q Dozer cylinder rod pin

12

181

167

70

68

4

197

180

60

-

R Dozer cylinder head pin

12

181

167

70

68

4

197

180

60

-

Type

Name

K Arm point pin L

Bucket cylinder rod pin


14-4 TYPE AND DIMENSION OF BUSHING SK75UR-3E . SK130UR-1E

(C) Front boom right side

(B) Front boom left side

(A) Boom foot

(D) Arm foot

(H) Bucket drive (E) Idler link (F) Arm point (I) Bucket lug

(G) Bucket link (cylinder rod side)

(J) Dozer foot DOZER BLADE


SK75UR-3E . SK130UR-1E TYPE OF BUSHING 1

2

1

2

D D

1

2

1

2

D D

L1

L1

3

4

1

2

D D

D D

L1

L1 5

6

1

2

D D

1

2

1

2

D D

L1

L1

7

8

1

2

D D

D D

L2 L1

L1

9

1

2

D D

L2 L1 -103Copyright © 2015 Kobelco Construction Machinery Co.,Ltd. All rights reserved. [S7YO00207ZE01] [0604CsCshWbYs]

SK75UR-3E . SK130UR-1E DIMENSIONS OF BUSHING Unit : mm Model

SK75UR-3E

SK130UR-1E

Type of bushing

L1

L2

D1

D2

Type of bushing

L1

L2

D1

D2

A Boom foot

1

65

-

60

75

2

85

-

70

85

B Front boom left side

3

55

-

55

65

3

80

-

70

85

C Front boom right side

3

55

-

55

65

3

80

-

70

85

D Arm foot

4

55

-

60

75

5

70

-

70

85

E Idler link

6

50

-

50

60

6

66

-

60

75

F Arm top

7

57

48

50

65

7

75

66

65

80

8

36

-

50

60

8

63

-

60

75

H Bucket drive

3

47

39

50

65

5

61

-

65

80

I

Bucket lug

9

53

43

50

65

9

64

49

65

80

J

Dozer foot

3

51

-

50

65

6

56

-

60

75

Type

Name

G

Bucket link (cylinder rod side)


14-5 UNDERCARRIAGE SK75UR-3E . SK130UR-1E

RUBBER CLAWLER MAINTENANCE STANDARDS

Place M mark or machine center

mark at

Core

Rubber cover

Seam joint mark M

H h B

Center line of steel cord

SECTION B-B B

A: Distance between the bottom of frame and top of rubber crawler

Lower roller Crawler frame

A

A RUBBER SHOE

IRON SHOE Unit : mm Model

Item

Sag of rubber clawer A

Cracks and cuts on rubber crawler

Breakage of steel cords

Contact surface of rubber crawler and lower roller

Height H / Lug projection h

SK75UR-3E

SK130UR-1E

140~150

165~170

200~230

270~300

-

-

Rubber shoe Standard Iron values shoe Repairable level Service limit Standard values

None

Repairable level

Where the depth of them does not reach to the steel cords.

Service limit

Where the depth of them reachs to the steel cords.

Standard values Repairable level Service limit Standard values

None None Exist None

Repairable level

Where 10 percent of core is visible from outside.

Service limit

Where a half of core is visible from outside.

Standard values Repairable level Service limit

Adjustment

Replace

Replace

Replace

102 {30}

134.5 {43}

-

-

75 {5 }

Remedy

100 {10}


Replace

SK75UR-3E . SK130UR-1E FRONT IDLER D C

G F

A B

E

Unit : mm Model Item A

B

Dia. of idler projection Tread dia.

C

Flange width

D

Tread width

Standard values Repairable level Service limit Standard values Repairable level Service limit Standard values Repairable level Service limit Standard values Repairable level Service limit Basic dimension

Shaft E

F

Clearance between shaft and bushing

Interference between idler and bushing

G

Plug

-

Oil

Idler rotation

Tolerance

Hole

SK75UR-3E

SK130UR-1E

446 440 438 400 394 392 43 38 36 104

510 504 502 456 450 448 58 52 50 125

---

---

50 -0.050 -0.075

60 -0.030 -0.060

--

--

Remedy

Repair by build-up welding or replace

Replace shaft or bushing

Repairable level Clearance 1.5 Service limit Clearance 2.0 57 64 Basic dimension +0.19 +0.19 Shaft +0.09 +0.14 Tolerance +0.030 +0.030 Hole -0.020 0 Repairable level Interference 0 Service limit Clearance 0.01 Size PT1/8 Engine Oil API 150~160cc 200cc grade CD #30 Rotates smoothly by hand.

Replace shaft or bushing

Replenish Reassemble


SK75UR-3E . SK130UR-1E

SPROCKET B

D

F F

G

A C

E

Unit : mm Code

Model Item Standard

A

O.D. sprocket

Repairable level

Service limit Standard

B

C D E F G

Width of sprocket Repairable level teeth Service limit Standard I.D. sprocket Repairable level bottom Service limit Pitch n o Number of teeth c i i s s n P.C.D. a e B m i d

Tooth profile

SK75UR -3E

SK130UR -1E

540 +30 534 532 38 +0.5 -2.5 32 30 487 481 479 155.6+1 21 527.9 4 R20.64

601+3 590 588 49 -30.5 44 42 532 521 519 171.07+1 21 580.38 3.5 R24+0.5 -

Remedy Reinforcement weld, repair or replace Replace Reinforcement weld, repair or replace


SK75UR-3E . SK130UR-1E UPPER ROLLER

B

G

A

D

E

C

F


B

C

Tread dia

Tread width


Standard values Repairable level Service limit Standard values Repairable level Service limit Basic dimenson

Shaft Tolerance

Hole Repairable level Service limit Basic dimenson

D

Interference between roller and bushing

Shaft Tolerance

Hole Repairable level Service limit Basic dimension

E

Interference between roller and cover

Shaft Tolerance


F

G

Interference between collar and shaft

Hole

SK130UR-1E

82 73 70 102 95 92 32 -0.025 -0.050

100 92 88 130

-

-

Clearance 0.7 Clearance 1.0 36 +0.025 0 0 -0.03 Interference 0 Clearance 0.01 50 -0.01 -0.029 +0.030 0 1.0

-

34 +0.08 +0.06 +0.025 0 1.0

Repairable level Service limit Size PT1/8 Engine oil API 20cc grade CD #30 Rotates smoothly by hand.

-

Plug Oil

-

Shaft Tolerance

SK75UR-3E

Roller rotation

Remedy

Replace roller

-

38 Replace shaft or bushing

42

+0.025 0

Replace roller or bushing

60

+0.030 0

Replace roller or cover

-

40 Replace roller or shaft

-

PT1/4 Replenish Reassembly


SK75UR-3E . SK130UR-1E LOWER ROLLER C

C

F

A

B

E

D


B

O.D. of flange

Tread dia

C

Flange width

D


Standard values Repairable level Service limit Standard values Repairable level Service limit Standard values Repairable level Service limit Basic dimension

Shaft Tolera nce

Hole

Repairable level Service limit Basic dimension

Shaft

Interference between roller and bushing

Tolera nce

F

Plug

-

Oil

Repairable level Service limit Size Engine oil API grade CD #30

E

Roller rotation

Hole

SK130UR -1E

SK75UR -3E 147

Iron 170

Rubber 185

-

-

-

120 110 106 17.5 12 10 40 -0.060 -0.090

140 130 126

Remedy

Reinforcement weld, repair or replace

22 18 16 50

Replace bushing

-

-

Clearance 0.7 Clearance 1.0 44 +0.15 +0.10 +0.025 -0.020 Interference 0 Clearance 0.01 PT 1/4

Clearance 1.0 Clearance 1.5 57 +0.19 +0.09 +0.03 0

90cc

150cc

Rotates smoothly by hand.

Replace bushing

Replenish Reassembly


SK75UR-3E . SK130UR-1E IDLER ADJUSTER ASSY

E

A, B, (C)

F

D

Unit : mm Model Item A Installed length of spring mm B Free length of spring mm C Stroke D Set length

Rubber

Iron

E Outer circumference of piston F

Tightening torque of grease nipple N.m {kgf .m}

SK75UR-3E

SK130UR-1E

Remedy

270 About 320 35 495 495

354.8 About 423 40 686 686

Adjust

Replace piston and seal, if grease leaks

Nor scoring and rusting 59 {6}

59 {6}

Tighten it to specified torque


SK75UR-3E . SK130UR-1E TRACK LINK ASSY E

F

B

D

G

57

A C H K Model

Item A

Link pitch

B

O.D.of bushing

C

Height of link

D

E

Standard values Repairable level Service limit Standard values Repairable level Service limit Standard values Repairable level Service limit Basic dimenson

Shaft Interference Tolerance between Hole bushing and link Repairable level Service limit Basic dimension Interference between track pin and link

Shaft Tolerance


F

G

H K

Shaft Interference Tolerance between master Hole pin and link Repairable level Service limit Clearance between links (both sides)

Standard values

Repairable level Service limit Standard values Shoe plate Repairable level thickness Service limit Tightening torque of shoe bolt

Unit : mm

SK75UR-3E

SK130UR-1E

155.6 + 0.1 160 164 41 +0.214 +0.174 37 36 75 + 0.15 69 67 41 +0.214 +0.174

171.07 + 0.1 175 179 47 +0.29 +0.24 43 42 90 84 82 47 +0.29 +0.24 +0.074 0

-

Remedy

-

-

41.19 + 0.1

-

Interference 0.05 Interference 0 24 +0.15 0

30 +0.14 +0.11

-

-

Interference 0.05 Interference 0 24 -0.05 -0.08

30 +0.01 -0.02

-

-

Replace the link assy if the service limit is exceeded.

Replace

Replace Interference 0.05 Interference 0 (Both sides) 1.6 (Both sides) 8 (Both sides) 10 26 15 13 . 294N m {30kgf .m}

(Both sides) 1.2 Replace 28 17 15 . 402 + 40N m {41 + 4kgf .m}

-

-

Replace Retighten


15. WORKING RANGE SK75UR-3E BACKHOE ATTACHMENT 1.76m Arm

Attachment Type

Item A A' B C D E F G H J K L

Maximum digging reach Maximum reach at ground level

Maximum digging depth Maximum digging height Maximum dumping clearance Minimum dumping clearance Vertical digging depth Minimum swing redius Height at minimum swing Digging depth for 2.4m (8') level bottom Horizontal digging stroke at ground level

Stroke Minimum

At neutral 1.76m Arm +0.28m3 Bucket 6,420 6,280 4,170 7,500 5,430 2,490 3,250 1,160 5,680 3,780 3,020 1,690

At off-set right (Max. 1,330mm) 1.76m Arm +0.28m3 Bucket 5,750 5,600 3,480 6,880 4,820 1,880 2,610 2,050 5,040 3,080 3,070 970

Unit : mm At off-set left (Max. 1,045mm) 1.76m Arm +0.28m3 Bucket 6,060 5,920 3,790 7,160 5,100 2,160 2,900 1,540 5,320 3,400 3,050 1,300

NOTE : Bucket capacities are indicated in heaped capacity.


SK75UR-3E BACKHOE ATTACHMENT 2.06m Arm

Attachment Type




Stroke Minimum

At neutral 2.06m Arm + 0.22m3 Bucket 6,710 6,570 4,470 7,720 5,650 2,210 3,540 1,240 5,680 4,140 3,540 1,450

At off-set right (Max. 1,330mm) 2.06m Arm + 0.22m3 Bucket 6,010 5,860 3,780 7,100 5,030 1,590 2,900 2,050 5,040 3,450 3,590 710

Unit : mm At off-set left (Max. 1,045mm) 2.06m Arm + 0.22m3 Bucket 6,330 6,190 4,090 7,380 5,310 1,870 3,190 1,540 5,320 3,770 3,570 1,050



SK130UR-1E BACKHOE ATTACHMENT 2.2m Arm

Attachment Type




Stroke Minimum

At neutral 2.2m Arm +0.45m3 Bucket 7,570 7,420 4,840 8,480 6,050 2,480 3,530 1,370 6,460 4,500 3,740 1,860

At off-set right (Max. 1,180mm) 2.2m Arm +0.45m3 Bucket 7,140 6,980 4,430 8,090 5,660 2,090 3,170 2,000 6,060 4,090 3,750 1,420

Unit : mm At off-set left (Max. 1,165mm) 2.2m Arm +0.45m3 Bucket 7,150 6,990 4,440 8,100 5,670 2,100 3,180 1,720 6,080 4,110 3,750 1,430



16. LIFTING CAPACITIES SK75UR-3E (1) Condition of Calculation 1) The lifting load shows the lower value either 87% of hydraulic lifting capacity or 75% of tipping load. 2) The load point is on the bucket supporting point,and the bucket position is a closed position. 3) The values in the upper rows show the lifting capacity of a machine facing sideways,and values in the lower rows show a machine facing longitudinally. 4) Unit:ton, Crawler : 450 mm (17.7in), iron crawler 5) Set hydraulic pressure : 300 kgf/cm2 (4,260 psi)

(2) Reference No. list of lifting diagram Unit : ton Arm Bucket No.

1.76m Arm 0.28m3 Bucket (1)

2.06m Arm 0.22m3 Bucket (2)

Note : With bucket and dozer blade up position

1

Unitton

2


Unitton

SK130UR-1E (1) Condition of Calculation 1) The lifting load shows the lower value either 87% of hydraulic lifting capacity or 75% of tipping load. 2) The load point is on the bucket supporting point, and the bucket position is a closed position. 3) The values in the upper rows show the lifting capacity of a machine facing sideways, and values in the lower rows show a machine facing longitudinally. 4) Unit : ton, Crawler : 500 mm (19.7in), iron crawler 2.2m Arm 0.45m3 Bucket (heaped capacity) 5) Set hydraulic pressure : 350 kgf/cm2 (4,970 psi)

(2) Reference No. list of liffting diagram No. Dozer blade position (1)

(1) Blade up at front

(2) Blade up at rear

Unit : ton

(2)

Unit : ton


17. TOOLS & JIGS UPPER FRAME LIFTING JIG SK75UR-3E

Q'ty : 2 sets Material : Mild steel, POK400(SS41)


SK130UR-1E

22 drill through

SECTION A A Q'ty : 2 sets Material : Mild steel, POK400(SS41)


COUNTERWEIGHT LIFTING JIGS SK75UR-3E

Bracket for left side

Bracket for right side

Material: Mild steel POK400(SS41)

SK130UR-1E

Commercial eye bolts For standard weight

For add-on weight

M36

M24 -119-


ENGINE MOUNTING PEDESTAL SK75UR-3E

Note : Hold the oil pan section of engine. 547 505

21

21 0 3 1

0 0 3

240

2 65

1 2

8 R 1 5

0 8 2

0 8 2 0 4 1

1 2

250

240

200

265

325

0 0 3 0 3 1

21

505 547

21

Material: Plywood or wooden plate

SK130UR-1E

Note : Hold the oil pan section of engine.

Material: Plywood or wooden plate -120Copyright Copyright © 2015 Kobelco Kobelco Construction Machinery Co.,Ltd. Co.,Ltd. All rights reserved. [S7Y [ S7YO00 O00207Z 207ZE01] E01] [0604CsCshWbYs] shWbYs]

SK75UR-3E . SK130UR-1E TRACK SPRING SET JIG

M30

RETAINER NUT

RETAINER PLATE

STAND

HYDRAULIC JACK

BASE


TOOL FOR REMOVING BOOM FOOT PIN SK75UR-3E

2

1 Slide hammer for removing boom foot pin

TOOLS ASSY YR01T00006F1 NO.

TOOLS NAME

TOOLS No.

SHAPE

ROD

YR02B01285P1

APPLICABLE

A 80 M16

e A l o s t h r 5 a 3 p r o f

1

Preheat 300 to 350˚C 4

(50)

4 6

10

16

1350 1416

4 - R 5

50

For removing boom foot pin

10 4

0 1 R 2

2 - C 8

2

HAMMER


YR02B01286P1 25 30

25 100

(30)

160


SK130UR-1E

2

1 Slide hammer for removing boom foot pin

TOOLS ASSY YX01T00002F1 NO.

TOOLS NAME

TOOLS No.

SHAPE

ROD

YX01T01002P1

APPLICABLE

A 80 M24

e A l o s t h r 5 a 3 p r o f

1

Preheat 300 to 350 4

100

4 6

14

16

1350 1416

4 - R 5

50


10 4

0 1 R 2

2 - C 8

2

HAMMER


YR02B01286P1 25 30

25 100

(30)

160


TOOL FOR REMOVING TRUNNION CYLINDER MOUNTING PIN SK75UR-3E . SK130UR-1E

ARM CYLINDER

SPANNER

1

3

2

Tool for trunnion cylinder pin

TOOLS ASSY YR01T00005F1 NO.

TOOLS NAME

Unit : mm

TOOLS No.

SHAPE

APPLICABLE

116 16 26 drill through 1

GUIDE

2 . 4

40 For trunnion pin

YR02B01283P1 0 4

2 - R 5

200 145

30 25 2

SCREW

8 0 . R For trunnion pin

YR02B01284P1 8 0 . R

M24 X 3.0

M16 X 3.0 M24

3

NUT M24

ZN18C24019

For trunnion pin

Commercial parts

B

B=36


SPECIAL SPANNER FOR TUBE

Applicable tube diameter mm

Part No.

Hex mm

Drawing of a special spanner mm (in) 70 (2.76)

15

2421T160

16 (0.630)

27

HEX27 8 (0.315)

PART-No. 40 (1.57)

22 (0.866)

+0.3

+0.012

12.7-0.1 (0.500-0.004 )

70 (2.76)

18

2421T138

19 (0.748)

32

HEX32 22 (0.866)

PART-No.

42 (1.65)

22 (0.866)

+0.3

+0.012

12.7-0.1 (0.500-0.004 )

70 (2.76)

22

2421T129

19 (0.748)

30

HEX30 22 (0.866)

PART-No.

40 (1.57)

22 (0.866)

+0.3

+0.012

12.7-0.1 (0.500-0.004 )

70 (2.76)

22

2421T130

23 (0.906)

36

HEX36 11.5 (0.453)

PART-No.

48 (1.89)

22 (0.866)

+0.3

+0.012

12.7-0.1 (0.500-0.004 )

109 (4.29)

28

2421T115

29 (1.14)

41

HEX41 14.5 (0.571)

PART-No.

60 (2.36)

22 (0.866)

+0.3

+0.012

12.7-0.1 (0.500-0.004 )

109 (4.29)

28

2421T231

31 (1.22)

46

PART-No.

HEX46

35 (1.38)

+0.3

80 (3.15)

+0.012

19.5-0.1 (0.768-0.004 )

109 (4.29)

32

2421T232

33 (1.30)

50

PART-No.

HEX50

22 (0.866)

+0.3

80 (3.15)

+0.012

19.5-0.1 (0.768-0.004 )

-125-


SPECIAL TOOLS

No.

Tools name

Tools No.

1

Allen wrench Nominal 10

ZT22A10000

Shape

Applicable

Pump suction

Commercial tool length (L1) - cut length = Required length 40 (1.57") 10 (0.39") = 30 (1.18")

-

2

Allen wrench Nominal 14

Pump install

ZT22A14000


-

Cut

3

Spanner Nominal 32

Swing motor A,B port

ZT12A32000


-

Additional M10 X 22 threading for M10 Eye bolt 4

Plug PF3/4

For slidng the swing motor

ZE72X12000

PF3/4

O ring

M10 Eye bolt

5

Eye bolt M10 X 18

For slidng the swing motor & Flare hose

ZS91C01000 or commercial equivalent M10

-126-


No.

Tools name

Tools No.

Shape

Applicable

M8 Eye bolt

6

Plug Nominal tube dia. 22 Reference Eye bolt Nut

ZF83P22000 Reference nut ZS91C00800 ZF93N22000

Flare hose

M8 X 18 Additional threading for M8 Eye M8 Eye bolt

7

Plug Nominal 1-14UNS

YN01H01001P1

M8 X 18 Additional threading Flare hose

ZS91C00800

Eye bolt

M8 Eye bolt

8

9

Plug Nominal 1 3/16-12UN

YN01H01002P1

Eye bolt

ZS91C00800

Eye bolt M8 X 15

M8 X 18 Additional threading Flare hose

For slidng the swing motor & Flare hose

ZS91C00800 or commercial equivalent M8

10

Plug PF1/2

Additional M8 X 20 threading for M8 Eye bolt

ZE72X08000

PF1/2

For slidng the swivel joint

O ring

-127-


18. SOME CONVERSION UNITS

Units of weight :

Units of pressure :

From

Into

Multiply by

kg

Ib

2.2

Lb

kg

From Kgf / cm

0.454

2

Into

Multiply by

meters

feet

3.28

mm

inches

inches

psi

Divide by

psi

14.223

Pa

9.807

Atm

0.06805

Bars

0.06895

Kgf / cm

MPa

(Mega Pascal)

25.4

2

0.0703

Pa

6894.76

psi

145.04

Into

Multiply by

Gal

0.264

(Pascal)

25.4

mm

Multiply by

(Pascal)

Units of length : From

Into

Units of volu me : Units of power : From

From Into

Multiply by

PS

kW

0.7355

kW

PS

1.360

(US liq) 3

in Liters

Units of flow : From

Into Lit / min Lit / sec

Gal / min

3

(US liq)

cm / min

61.02 3

yard

0.00131

quarts

1.0567

ounces

33.81

(US)

Multiply by

3

0.765

3

46656

3

27

m

3.79

in

0.0631 Yard

3785.4

3

ft

3

3

0.1337

ft / min

3

0.0353

Gal / min

0.264

Gal / sec

0.004403

ft / min

Lit / min

3

yard / min

0.001308

Into

Multiply by

Lbf-ft

0.738

kgf-m

0.1019716

Lbf-ft

0.737561

Lbf-in

8.85075

Kgf-m

0.1382552

N-m

1.35582

Lbf-in

12

cm

764554.9

liters

764.555

Units of torque : From

N-m

Lbf-ft

-128-



Sk75ur-3e_sk130ur-1e Hanbook

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