Plano Hidráulico Retroexcavadora 420f

INTERACTIVE SCHEMATIC Bookmarks

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Information Component Table Tap Table Fluid Power Symbols Electrical Symbols

Schematic Machine Views Front Frame Rear Frame Tap Views

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E-C60 E-C61

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EC-C1

UENR3236-04  April 2015

420F and 430F Backhoe Loader  Hydraulic System 420F:

430F:

LTG1-UP

RDF1-UP

SKR1-UP

LDY1-UP

COMPONENT LOCATION LOCATION Part Machine Schematic Number  Location Location

Description  Accumulator - Pilot

226-0420 226-0420

1

C-5

 Accumulator Optional Optional

382-8033 382-8033

2

C-8

337-9751

3

B-3

4

F-6

5

F-5

Cooler - Hydraulic Cylinder Gp - Boom Cylinder Gp - Bucket

420F 420F::

210210-70 7076 76

430F 430F::

246246-98 9884 84

420F 420F::

210210-70 7088 88

430F 430F::

210210-70 7096 96

Cylinder Gp - E-Stick

210-7098

6

F-3

Cylinder Gp - Front Steer

214-5097

7

 A-6

8

B-8

9

 A-8

Cylinder Gp - Lift

LH:

358-5034

RH:

358-5035

Cylinder Gp - MP Bucket (OPT) Cylinder Gp - Stabilizer  Cylinder Gp - Stick Cylinder Gp - Swing

185-1839 LH:

291-2682

RH:

291-2681

420F 420F::

210210-70 7082 82

430F 430F::

210210-70 7092 92

LH:

381-8055

RH:

381-8054

10

F-3 F-6

11

F-4

12

F-5

Cylinder Gp - Tilt

358-5044

13

B-8

Filter Gp - Hydraulic

359-7232

14

C-1

Fitting - Quick Disconnect (Female)

106-0401

15

F-3

Fitting - Quick Disconnect (Male)

106-0406

16

F-2, F-3

17

D-4

Basi Basic c: Manifold - Pilot Pil ot

359359-72 7223 23

Basi Basic c + 4 : 359359-72 7224 24 Basi Basic c + 6 : 359359-72 7225 25

TAP LOCATION

Tap Number

Description

Schematic Location

T1

Pump Discharge Pressure

C-4

T2

Right Rear Service Brake

C-4

T3

Rear Park Brakes

D-5

SOS

Oil Sampling Port

C-2

FLUID POWER SYMBOLS BASIC COMPONENT SYMBOLS

MAIN   AUX.

PUMP or MOTOR

SPRING (ADJUSTABLE)

VARIABILITY

CONTRO L VALVES

SPRING

FLUID CONDITIONER

LINE RESTRICTION (VARIABLE)

PRESSURE COMPENSATION

LINE RESTRICTION (FIXED)

RESTRICTION

HYDR HY DRAU AULI LIC C PNEU PN EUMA MATI TIC C ENERGY ENERG Y TRIANG TRIANGLES LES

TWO POSITION

THREE POSITION

2-SECTION PUMP

PUMP: VARIABLE and PRESSURE COMPENSATED

LINE RESTRICTION

 ATTACHMENT  ATT ACHMENT

VARIABLE and PRESSURE COMPENSATED

VALVES

VALVE VAL VE ENVELOPES EN VELOPES

ONE POSITION

 

VALVE PORTS

TWO-WAY

 

 

THREE-WAY

CONTROL VAL VALVES VES

FOUR-WAY

CHECK VAL VALVES VES

 A B

 A B

P T SHIF SH IFTE TED D PO POSI SITI TION ON

P T NORMAL POSITION

INFI IN FINI NITE TE PO POSI SITI TION ON

SPRING LOADED

BASIC SYMBOL

SHUTTLE

PILOT CONTROLLED

FLUID STORAGE RESERVOIRS

VENTED

RETURN ABOVE FLUID LEVEL

PRESSURIZED

MEASUREMENT

PRESSURE

 

TEMPERATURE

RETURN BELOW FLUID LEVEL

ROTATING ROTA TING SHA FTS

 

FLOW

UNIDIRECTIONAL

COMBINATION CONTROLS

BIDIRECTIONAL

ELECTRICAL SYMBOLS Hydraulic Symbols (Electrical)

G Transducer  (Fluid)

Pressure Switch

Transducer  (Gas / Air)

Pressure Switch (Adjustable)

Generator 

Temperature Switch

M Electric Motor 

Electrical Wire

Electrical Symbols (Electrical)

T

Pressure Symbol

Temperature Symbol

Level Symbol

Wire Number Number Identifi cation Codes

Flow Symbol

8

7

6 STAB

(33) VALVE GP PILOT (HOE) 359-7227

OPERAT ORLEFTJOYSTICK

(26) VALVE GP BACKHOE 6 BANK: 359-7208 7 BANK: 359-7210 8 BANK: 359-7212

 

L3

4

(12) CYLINDER GP SWING LH: 381-8055 RH:381-8054

SWING

BUCKET

STICK

(5) CYLINDER GP BUCKET 420F:210-7088 430F:210-7096 (4) CYLINDER GP BOOM 420F:210-7076 L3 430F:246-9884

BA RS2

(29) VALVE GP CUSHION 206-3685

R2

STAB

L2

BOOM

(28) VALVE GP CHECK (STAB) 359-7213

F

L4

5

(10) CYLINDER GP STABILIZER (RH) 291-2681

B1

A1

BOOM

A2

B2

SWING

B3

A3

BUCKET

A4

B4

3 (11) CYLINDER GP STICK 420F:210-7082 430F:210-7092

STAB

(6) CYLINDER GP E-STICK(OPT) 210-7098

(15) FITTING QUICK DISCONNECT (FEMALE) 106-0401 NOTE B

(16) FITTING QUICK DISCONNECT (MALE) 106-0406 NOTE B

SA

(28) VALVE GP CHECK (STAB) 359-7213 A5

STICK

2

(10) CYLINDER GP STABILIZER (LH) E-STICK 291-2682

B5

LS2

STAB

HAA

T9 A 6

B6

 

 A7

E-STICK

(33) VALVE GP PILOT (HOE) 359-7227

OPERAT ORRIGHTJOYSTICK

F T9

EA

 

1

(16) FITTING QUICK DISCONNECT (MALE) 106-0406 NOTE B

B7

AUX

 A8

(31) VALVE GP MANUALHYD OIL 365-2875 NOTE B B8

L1

R1

R3

R4

R2

STABILIZERJOYSTIC K OPERATOR RIGHT

OPERATOR LEFT

E

E

RS1

RS2

RS1

LS2

LS1

R4

LS1

EB

HAB

BB L1

(34) VALVE GP PILOT (STAB) STD: 359-7246 W/ SWITCH: 359-7247 DTNT & SWITCH: 359-7248

SB

NOTE B

T6

EB

SA

BB

BA

J2

SB

T2

T3

HAB

J3

P6

(27) VALVE GP BOOSTEDBRAKE 220-8226

(17) MANIFOLD PILOT BASIC:359-7223 BASIC +4: 359-7224 BASIC +6: 359-7225

J1 TOREARAXLE LEFTWHEELBRAKE

LEFT BRAKE PEDAL

D (32) VALVE GP PATTERN CHANGE 300-4491

T1

R1

R3

L4

RIGHT BRAKE PEDAL

TOREARAXLE RIGHTWHEELBRAKE

L 2

P

ACC

BRK 

DIAG

(1) ACCUMULATOR PILOT 226-0420

(30) VALVE GP LOADER (ST) 2 BANK: 359-7205 3 BANK: 359-7207

T3

EA

HAA

(14) FILTER GP HYDRAULIC 359-7232

(2) ACCUMULATOR OPTIONAL 382-8033

C

D

DLS

P

(35) VALVE GP RIDECONTROL(OPT)

C

(20) SENSOR GP TEMPERATURE (OPT) 264-4297

T2

T9

245-8780  ACC

PS

(22)SENSOR RIDECONTROL(OPT) 344-7391

SOS

(21) SENSOR GP PUMP DISCHARGE 344-7391

D

T1

(23) SWITCH GP DIFF PRESSURE(OPT) 134-0404

T

R

H

LIFT

P7 T7

B1

(8) CYLINDER GP LIFT LH: 358-5034 RH:358-5035

LIFT  A1

(19) PUMP GP IMPLEMENT 307-3069

(3) COOLER GP HYDRAULIC 337-9751

B

B (13) CYLINDER GP TILT 358-5044

TILT

TILT B2

 A2

(18) PUMP GP HMU LOAD SENSE RELIEF 341-7654 (9) CYLINDER GP MP BUCKET (OPT) 185-1839

PILOT PUMP OUTPUT MAINPUMPOUTPUT LIFTCYLINDERCIRCUIT BUCKETCYLINDERCIRCUIT LOADSENSECIRCUIT STEERINGCIRCUIT STICKCYLINDERCIRCUIT SUPPLY LINE  AUX CIRCUIT BOOMCYLINDERCIRCUIT TILTCYLINDERCIRCUIT LOADERVALVECIRCUIT DRAIN/ RETURNLINE STABILIZERCYLINDERCIRCUIT SWINGCYLINDERCIRCUIT E-STICKCYLINDERCIRCUIT BOOSTEDBRAKEOILCIRCUIT

B3

 A

(25) TANK GP FILTER/BREATHER/SIGHT GAGE 351-5888

 A3

FRONTSTEERCYL.

(24) TANK HYDRAULIC 358-9301

(7) CYLINDER GP FRONT STEER 214-5097

7

6

5

4

PressureLine Pilot / LoadSensingPressure Drain/ ReturnLines ComponentGroup CALLOUTS

Taps(Pressure,Sampling,Sensor-byletter)

YY DL

DL

Callout Number  (MachineLocationfrom Component LocationsTable)

 A

Connectors(Byletter)

D

(52)VALVE GP-CONTROL 138-1234 PartNumber 

Component Name

THIS SCHEMATICIS FORTHE 420F AND430F BACKHOE LOADERHYDRAULICSYSTEM

MEDIA NUMBER: UENR3236-04 SCHEMATICPART NUMBER: 362-9207, CHANGE: 03, VERSION: Componentsareshowninstalledona fullyoperablemachinewiththekey andengineoff,transmissionshifter  inneutralandwithparkingbrakeset. RefertotheappropriateServiceManualforTroubleshooting,Specifications andSystemsOperations. RefertothePartsManualusinga specificserialnumberprefixinSISbeforeorderingpartsfromthisschematic.

NOTE B: OPTIONAL ATTACHMENT

8

LINE PATTERNS

HYDRAULICCIRCUIT COLORDESCRIPTIONS

 AUX

3

2

1

ACCUMULATOR (PILOT)

1

BOOM WITH E-STICK

6

E-STICK VIEW ALL CALLOUTS

15

16

FRONT VIEW VIEW ALL CALLOUTS

8

3

REAR MACHINE VIEWS VIEW ALL CALLOUTS

11

9

5 33 4

12

UNDER CAB VIEW VIEW ALL CALLOUTS

24

25

7

27 T1

19 20 23 SOS

14

18 T2

21 30

29

26

22

35