Hyundai 130w-3 Hyd

SECTION 3 HYDRAULIC SYSTEM GROUP 1 HYDRAULIC CIRCUIT

22

4

T

45

35

46

33

34

36

12 13

14

TB T

15 P2

P1

360k

P

B

A

Ck1 Pa1 dr9

XAks fl

fr

dr8

2 8 380k XAah Aa1 XAa1 Ba1 XBa2

dr14 T1

10

XAa2 XBa2

XBa1 XAas

G1 G1 G2 G3 G4 G5 G6

XAb1

380k

Ab1

47

dr11

OP XBb2

TM1 TM2

18 P2

19

40

9

P1

38

XBb1

dr10

42

Ak1 XAk Bk1 XAks XBk

XBs

41 P

43

Ck2 Bd XAd Ad

T2

Ao Bo

dr12 dr13

3

At XAt Bt

16

11 P P1

XBt

Sh

T4

T3

320k(350k)

Pg

dr7 Pz

7

21

ACCELERATOR

DOZER

5 SWING

BOOM

Py

Px

P1

39

6

ARM

P2

R

Pi

39

BUCKET 220k

37

37 XBd dr6

XAd

20

XBa1

dr5

XAa1 XBb1 dr3

XBs Sh

XAa1 XBk dr4

A

Mu B

A1

XAk

25

30 XBt

XAa2

Pz

Pa1

44

dr1~dr14

Pi

32

dr2

fr(pi2)

fl(pi1)

T2~T4

28

Pg

37

1

23 24

XAt

A2

T1

XAs XAas

17

29

XAo XBo

XBd

TP

31 27

E dr1

26

XAah

3 -1

P1 Bb1

380k

Bs XAs As

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

Main pump Main Main contro trol va valve lve Swing motor Travel motor RCV lever(LH) RCV lever(RH) Acc Acceler lerator tor ped pedal Turning joint Tran Transm smis issi sion on valv valve e Stee Steeri ring ng valv valve e Gear pump Locking ing va valve lve Tra Transmiss ission ion Front ax axle Rear axle Brak Brake e supp supply ly valv valve e Acc Accumulato latorr Acc Accumulato latorr Acc Accumulato latorr Shu Shuttle ttle valve lve RCV RCV lever e ver-D -Doz ozer er Osci Oscillllat atin ing g cyl cylin inde derr Check va valve Check va valve Oil co cooler Strainer Byp Bypass valve lve Retu Return rn filte ilterr Spin filter Air brea reather Hydr Hydrau aulilicc tan tank Line filter Boom Boom cyli cylind nder er(R (RH) H) Boom Boom cyli cylind nder er(L (LH) H) Arm Arm cylind i nder Buck Bucket et cyli cylin nder der Last ast gua guard rd filt filter er Brake va valve Pres Pressu sure re swit switch ch Pres Pressu sure re swit switch ch Pres Pressu sure re swit switch ch Pres Pressu sure re swit switch ch Pres Pressu sure re swit switch ch Sole Soleno noid id valv valve e Doze Dozerr cyli cylind nder er(R (RH) H) Doze Dozerr cyli cylind nder er(L (LH) H) Gauge bl block

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GROUP 3 PILOT CIRCUIT

Remote control valve (LH lever)

RCV lever(Dozer)

Remote control valve (RH lever)

Safety lock solenoid valve

Swing parking brake

Control valve Travel speed shift port of transmission Arm half flow solenoid valve Accelerator pedal

Power boost solenoid valve Line filter

Main pump

Relief valve 40kg/cm2

Pilot pump

Suction filter

The pilot circuit consists of suction circuit, delivery circuit and return circuit. The pilot pump is provided with relief valve, receives the oil from the hydraulic tank through the suction filter. The discharged oil from the pilot pump flows to the remote control valve through line filter, EPPR valve, solenoid valve assemblies, swing parking brake, main control valve and safety lock solenoid valve through line filter.













1. SUCTION, DELIVERY AND RETURN CIRCUIT

DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL

REAR AXLE TRAVEL MOTOR

TRANSMISSON

ARM2

ARM1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

SWING

BUCKET

DOZER

OPTION

BRAKE SUPPLY VALVE

SWING MOTOR

GEAR PUMP

TRAVEL

PEDAL PEDAL RCV LEVER LEVER RCV RCV LEVE LEVER( R(LH LH)) (DOZER) ACCELERATOR

DOZER SWING

ARM

RCV RCV LEVE LEVER( R(RH RH)) BOOM

BUCKET

T1

dr6

dr5

dr3

dr4

SAFETY SOLENOID VALVE

T2~T4

PILOT PUMP dr1~dr14

Pg Pi dr2

SPIN FILTER STRAINER

LINE FILTER

HYD TANK RELIEF VALVE

The pilot pump receives receives oil from the hydraulic hydraulic tank. The discharged oil from from the pilot pump flows flows to the safety solenoid valve through the line filter The oil is filtered by the line filter. The pilot relief













2. SAFETY SOLENOID VALVE VALVE(SAFETY LEVER)


ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

ARM2

ARM1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

SWING

BUCKET

DOZER

OPTION

BRAKE SUPPLY VALVE

SWING MOTOR

GEAR PUMP

TRAVEL


DOZER SWING

ARM


BUCKET

T1

dr6

dr5

dr3

dr4


T2~T4

PILOT PUMP

LEVER DOWN

dr1~dr14

Pg Pi


LINE FILTER

dr2


LEVER UP

When the lever of the safety solenoid valve is moved downward, oil flows into the remote control valve through solenoid valve and line filter.













3. MAIN RELIEF PRESSURE CHANGE CIRCUIT DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

ARM2

ARM1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

SWING

BUCKET

DOZER

OPTION

BRAKE SUPPLY VALVE

SWING MOTOR

GEAR PUMP

TRAVEL

MAIN RELIEF VALVE


DOZER SWING

ARM

Pz


BUCKET

T1

dr6

dr5

POWER BOOST SOLENOID VALVE

dr3

dr4


PILOT PUMP dr1~dr14

Pz

Pg Pi dr2

T2~T4


LINE FILTER


When the power max switch on the left control lever is pushed ON, the power max solenoid valve is actuated, the discharged oil from the pilot pump flows into Pz port of the main relief valve in main













4. SWING PARKING BRAKE RELEASE


ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

GAUGE BLOCK

ARM2

ARM1

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

BRAKE SUPPLY VALVE

SWING MOTOR

SWING

BUCKET

DOZER

OPTION

Sh Pg

GEAR PUMP

dr7

TRAVEL

A Mu B


DOZER SWING

ARM


BUCKET T1

dr6

dr5

dr3 Sh

dr4


T2~T4

PILOT PUMP

dr1~dr14

Pg Pi dr2


LINE FILTER


When the swing control lever is operated, the pilot oil flows to Sh port of shuttle valve, this pressure moves spool so, discharged oil from pilot pump flows to Pg port.















5. ARM HALF FLOW SYSTEM


ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

XAah XAa2

XAa1

ARM2

ARM1 GAUGE BLOCK

XBa2

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

SWING

BUCKET

DOZER

OPTION

BRAKE SUPPLY VALVE

SWING MOTOR

GEAR PUMP

TRAVEL


DOZER SWING

ARM


BUCKET

T1

XAa1 dr6

dr5

ARM HALF SOLENOID VALVE

dr3

dr4


T2~T4

PILOT PUMP Pz

dr1~dr14













6. TRAVEL SPEED CONTROL PRESSURE DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

TRAVEL SPEED VALVE HIGH SPEED

ARM2

ARM1 LOW GAUGE BLOCK SPEED

BRAKE VALVE

BOOM1 BOOM2

SWING

BUCKET

DOZER

OPTION

BRAKE SUPPLY VALVE

SWING MOTOR T3 PARKING SOLENOID

GEAR PUMP

TRAVEL


DOZER SWING

ARM


BUCKET

T1

dr6

dr5

dr3

dr4


T2~T4

PILOT PUMP dr1~dr14













GROUP 4 SINGLE OPERATION OPERATION 1. BOOM RAISE OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

BOOM HOLDING VALVE

XAb1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

dr11

Op XBb2

BOOM1

BOOM2

XBb1

P1 Bb1

BRAKE SUPPLY VALVE

SWING MOTOR

P1

P2

R

T1

FRONT PUMP

REAR PUMP PILOT PUMP













2. BOOM DOWN OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

RELIEF VALVE MAKE UP VALVE

XAb1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

dr11

Op XBb2

BOOM1

P1

BOOM2 Bb1

BRAKE SUPPLY VALVE

SWING MOTOR

P1

P2

R

T1

FRONT PUMP














3. ARM ROLL IN OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

MAKEUP RELIEF VALVE VALVE

XAh XAa1

XAa2

ARM2

ARM1 GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BRAKE SUPPLY VALVE

SWING MOTOR

P1

ARM HALF SOLENOID VALVE

P2

R

T1

XAa2

FRONT PUMP

XAah
















4. ARM ROLL OUT OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

MAKEUP RELIEF VALVE VALVE

XBa2 XBa1 GAUGE BLOCK

ARM2

ARM1

XBa2

BRAKE VALVE

TRANSMISSON VALVE

BRAKE SUPPLY VALVE

SWING MOTOR

P1

P2

R













5. BUCKET ROLL IN OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

Ck1

GAUGE BLOCK

XAk2

CENTER BYPASS VALVE

BRAKE VALVE

TRANSMISSON VALVE

XAk XAk2

BUCKET BRAKE SUPPLY VALVE

SWING MOTOR

P1

P2

R

Ck2













6. BUCKET ROLL OUT OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL

BUCKET CYL


TRANSMISSON

GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BUCKET BRAKE SUPPLY VALVE

SWING MOTOR

P1

P2

R

XBk













7. DOZER UP OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL


TRANSMISSON

PILOT CHECK VALVE

GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BRAKE SUPPLY VALVE

SWING MOTOR

XAd XBd

DOZER

P1

P2

R

BUCKET CYL













8. DOZER DOWN OPERATION DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL


TRANSMISSON

GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

BRAKE SUPPLY VALVE

SWING MOTOR

XAd XBd

DOZER

P1

P2

R

BUCKET CYL















9. SWING OPERATION DOZER CYL FRONT AXLE


TRANSMISSON

GAUGE BLOCK

BRAKE VALVE

TRANSMISSON VALVE

XAs

ARM CYL

BOOM CYL

BUCKET CYL













SWING CIRCUIT OPERATION PARKING BRAKE BRAKE RELEASE VALVE Sh

BRAKE OFF

Pg

BRAKE ON

dr

BYPASS VALVE













10. TRAVEL FORWARD AND REVERSE OPERATION DOZER CYL FRONT AXLE


TRANSMISSON

TURNING JOINT

GAUGE BLOCK TRANSMISSON VALVE

BRAKE VALVE

ARM CYL

BOOM CYL

BUCKET CYL













TRAVEL CIRCUIT OPERATION

TRAVEL MOTOR

T

OVERLOAD RELIEF VALVE VALVE TB

COUNTER BALANCE VALVE













11. FRONT AND REAR AXLE BRAKE SYSTEM(SERVICE BRAKE) DOZER CYL FRONT AXLE

ARM CYL

BOOM CYL


TRANSMISSON

ARM1 GAUGE BLOCK

ARM2

BRAKE VALVE

TRANSMISSON VALVE

BOOM1 BOOM2

BUCKET CYL















12. STEERING CIRCUIT OPERATION DOZER CYL FRONT AXLE


TRANSMISSON STEERING CYLINDER

ARM CYL

BOOM CYL

BUCKET CYL













13. RAM LOCK CIRCUIT OPERATION OSCILLATING CYL FRONT AXLE

REAR AXLE

LOCKING VALVE

TRANSMISSON

P

TRAVEL MOTOR

DOZER CYL

ARM CYL

BOOM CYL

BUCKET CYL













GROUP 5 COMBINED OPERATION 1. OUTLINE


REAR AXLE

TRANSMISSON

TRAVEL MOTOR

ARM CYL

BOOM CYL

BUCKET CYL













2. COMBINED SWING AND BOOM OPERATION DOZER CYL FRONT AXLE

REAR AXLE

TRANSMISSON

TRAVEL MOTOR

ARM CYL

BOOM CYL

BUCKET CYL













3. COMBINED SWING AND ARM OPERATION DOZER CYL FRONT AXLE

REAR AXLE

TRANSMISSON

TRAVEL MOTOR

ARM CYL

BOOM CYL

BUCKET CYL















4. COMBINED SWING AND BUCKET OPERATION













5. COMBINED SWING, BOOM, ARM AND BUCKET OPERATION

Hyundai 130w-3 Hyd

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