Uenr4713uenr4713 Sis

7/23/2019 Uenr4713uenr4713 Sis

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INTERACTIVE SCHEMATIC

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d li d Th h li k

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Tables

Schematic

Machine Views

Component

Connector

Chassis View

Cab View

Engine View

Features

Options

Bookmarks X

EC-C3

EC-C2E-C60

EC-C1

E-C61

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d li d Th h li k

SCHEMATIC SYMBOLS AND DEFINITIONS

Spring

Control

Valves

Restriction Line Restriction

(Fixed)

2-Section

Pump

MAIN AUX.

Spring

(Adjustable)

Variability

Line Restriction

(Variable)

Pressure

Compensation

Pump: Variable and

Pressure Compensated

Hydraulic Pneumatic

Energy Triangles

Fluid

Conditioner

Attachment

Pump

or Motor

BASIC HYDRAULIC

COMPONENT SYMBOLS

Line Restriction

Variable and Pressure

Compensated

Pressure Temperature Flow

MEASUREMENT

Unidirectional Bidirectional

ROTATING SHAFTS

One Position Two Position Three Position

Two-way Three-Way Four-Way

ENVELOPES

PORTS

CONTROL

Basic

SymbolSpring

Loaded

Normal Position

A B

P T

A B

P T

Shifted Position Infinite Position

Shuttle Pilot

Controlled

VALVES

CHECK

Solenoid

or Manual

Solenoid

and Pilot

Solenoid and

Pilot or ManualSolenoid Servo Thermal Detent

COMBINATION CONTROLS

External Return Internal Return

Simplified CompleteInternal

Supply Pressure

RELEASED PRESSURE

REMOTE SUPPLY PRESSURE

PILOT CONTROL

Spring Loaded Gas Charged

ACCUMULATORS

Crossing Joining

LINES

Double ActingSingle Acting

CYLINDERSUnidirectional

Bidirectional

FIXED DISPLACEMENT

VARIABLE DISPLACEMENT

NON- COMPENSATED

PUMPS

Unidirectional

Bidirectional

Unidirectional

Bidirectional

FIXED DISPLACEMENT

VARIABLE DISPLACEMENT

NON- COMPENSATED

MOTORS

Unidirectional

Bidirectional

Two

Position

Infinite

Positioning

FLOW IN ONE

DIRECTION

FLOW ALLOWED IN

EITHER DIRECTION

Three

Position

CROSS

FLOW

PARALLEL

FLOW

INTERNAL PASSAGEWAYS

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UENR4713June 2013

924K, 930K and 938K Wheel Loader Hydraulic System

924K:

ENC1-UPHJF1-UP

930K:

DYB1-UPEYE1-UP

938K:

HFW1-UPXXT1-UP

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COMPONENT TABLE

Description Part NumberMachine

Location

Schematic

Location Accumulator Gp -Brake 360-9207 1 E-7, E-8

Accumulator Gp -Charge 373-6953 2 E-6

Cooler Gp -Hydraulic Oil (Clayton Only) 421-8495 3 C-4

Cooler Gp -Transmission Oil (938K) 383-7596 4 D-3

Filter Gp -Gearbox 349-3667 5 E-3Filter Gp -Hydraulic Oil 368-0754 6 E-4

Manifold Gp -Brake Accumulator 349-9089 7 E-7, E-8

Manifold Gp -Hystat Interlock Valve 347-0785 8 E-5

Manifold Gp -Hystat Loop (924K, 930K) 345-1707

Manifold Gp -Hystat Loop (938K) 356-8633

Motor Gp -Hystat (115cc) 307-3077 10 C-3

Motor Gp -Hystat (152cc) (924K, 930K) 307-3082

Motor Gp -Hystat (170cc) (938K) 341-7648

Motor Gp -Radiator/Hydraulic Fan 289-6394 12 C-8

Motor Gp - Radiator/Hydraulic Fan (Reversing) 289-6393 13 C-8

Orifice Gp -Motor Flushing Connector 9X-2614 14 D-2

Pedal Gp -Brake 342-0157 15 E-8

eCharge/LubPump Gp - 307-3079 16 D-4

Pump Gp - Fan/Brake (W/Brake Charging Valve) 307-3058 17 D-7, D-8

Pump Gp -Hystat (924K) 341-7638

Pump Gp -Hystat (930K, 938K) 307-3065

9 D-3, B-2

18 D-6

Component Location (Volume 1)

11 C-1

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COMPONENT TABLE

Description Part NumberMachine

Location

Schematic

Location Accumulator Gp - Pilot 373-7014 31 F-4

Accumulator Gp - Ride Control (924K) 373-7017

Accumulator Gp - Ride Control (930K, 938K) 373-6960

Accumulator Gp - Ride Control (924K) 373-7016

Accumulator Gp - Ride Control (930K, 938K) 373-6962Breather - Hydraulic Tank 258-2829 34 A-2

Cylinder Gp - Fusion Coupler 375-0724 35 D-7

Cylinder Gp - Wide Coupler 353-9375 36 D-5

Cylinder Gp - High Lift Tilt (930K) 351-8514

Cylinder Gp - High Lift Tilt (938K) 351-8515

Cylinder Gp - Lift (924K) 374-9705

Cylinder Gp - Lift (930K) 339-5593Cylinder Gp - Lift (938K0 347-3853

Cylinder Gp - Steering (924K, 930K) 339-5595

Cylinder Gp - Steering (938K) 347-3852

Cylinder Gp - Tilt (924K) 374-9706



Manifold Gp - Rear Frame Return 347-8096 41 D-8

Manifold Gp - Steering 346-5095 42 D-2

Orifice Gp - Ride Control PC 366-8973 43 E-3

32 F-3

F-4

40 F-4

37 F-4

F-3

Component Location (Volume 2)

39 D-1

33

38

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TAP TABLE

Tap

Number Description

Schematic

Location

4-Eer usser Pegr ahC7P

4-DlliFegr ahC8P

3-EegauGSOSxobr aeG9P

3-Der usser Pevir Ddr awr oFtatsyH01P

2-Cer usser Pevir Desr eveRtatsyH11P4-BegauGSOSciluar dyH21P

3-Eer usser Pxobr aeG31P

3-Eer usser PebuL41P

2-Eer usser PhctulC51P

8-Eer usser Pekar Becivr eStnor F61P

8-Eer usser Pekar Becivr eSr aeR71P

Tap Location

Pressure and Sampling

Volume 1

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U E

N R 4 7 1 3 - 0 0 V O L 1 o f 2

3 0 P a g e , ( D i m e n s i o n s : 3 9 i n c h e s x 2 8 i n c h e s )

12345678

A

B

C

D

E

F

12345678

A

B

C

D

E

F

LINE PATTERNS

Drain/ ReturnLines

Component Group

Pilot / LoadSensingPressure

PressureLine

Attachment

AirLine

CALLOUTS

Taps (Pressure, Sampling, Sensor-by letter)

Components(By number)

YY

52

HYDRAULICCIRCUIT COLORDESCRIPTIONS

PILOT PUMP OUTPUT

LUBE PUMP SUPPLY CIRCUIT

MAINPUMP OUTPUT

LUBE PUMP CIRCUIT

AUXILIARY 1CIRCUIT

LOADSENSE CIRCUIT

STEERING CIRCUIT

FAN/BRAKE CHARGE PUMP

SUPPLY LINE

QUICK COUPLERCIRCUIT

BRAKE CIRCUIT

AUXILIARY 2CIRCUIT

DRAIN/ RETURNLINE

TILT CYLINDERCIRCUIT

LIFT CYLINDERCIRCUIT

HYSTAT CIRCUIT

Components areshowninstalledona fully operablemachinewiththekey and engineoff, transmissionshifter inneutralandwithparkingbrakeset.

RefertotheappropriateServiceManualforTroubleshooting, Specifications andSystems Operations.

VOLUME 1of 2:DRIVE CIRCUITS

SCHEMATICPART NUMBER: 423-4719, CHANGE: 00, VERSION: --

924K, 930KAND 938KWHEEL LOADERHYDRAULIC SYSTEM

MEDIA NUMBER: UENR4713-00

Note: RefertotheParts Manualusinga specific serialnumberprefix inSIS beforeorderingparts fromthis schematic.

M

SW

P

A1 A2

B

R

L

A

T1

U

G

B

T1T2

F

PU L

T1

E

SMs

Mp

M

SecondarySteer

S t e e r i n g

I m p l e m e n t

ChargePump

LubePump

HystatPump

S e c .

S t e e r i n g

Rear DrainManifold

F r o n t

M a n i f o l d

HMU

P i l o t D r a i n

D u a l M o d e

S t e e r i n g

ToImpPilot

T2

HydraulicTank

ToRear Axle

ToFront Axle

U

BM1

G

A

M1

B1 B2

S2

S1

SOS

Y

Z

U

TE

G

SA

1:1Drive Ratio

307-3077

(938k): 341-7648

(938k): 356-8633

388-9447

VALVE GP-HIGHALTITUDE(NOT SHOWN)

349-1178

421-8495:(CLAYTONONLY)

9X-2614

370-2280

358-3002:(938k)

307-3079

368-0754

349-3667

366-8955

123-4750

347-0785

(930k, 938k): 307-3065

349-1178

373-6953

T

P

G

C

Fan Brake

Valve

B

L

R

T o

B r a k e s

360-9207342-0157

349-9089

344-7391

357-0377

344-7391

289-3054

(12)MOTORGP -RADIATOR/HYDRAULICFAN

289-6393

307-3058 383-7596

385-9391

348-2078

Fan Motor (Standard)

(924k)341-7 638

337-7053:(924k, 930k)

(924k, 930k): 307-3082

423-3531:( CAMP LARGO ONLY)

345-1707:(9 24K, 930K)

(26)VALVE-CHECK PILOTSUPPLY

(8)MANIFOLDGP HYSTATINTERLOCK

P9

P8

(10)MOTORGPHYSTAT(115cc)

(9)MANIFOLDGPHYSTATLOOP

(9)MANIFOLDGP HYSTATLOOP

(21)SENSORGP-PRESSUREHYSTATLOOP(REVERSE)

(3)COOLERGP -HYDRAULICOIL

(25)VALVE GP-CHECKHYSTATFLUSHING

(23)TRANSMISSIONAR-GEARBOX

(16)PUMPGPCHARGE & LUBE

(6)FILTERGP-OIL

HYDOIL

(5)FILTERGP-O (BSC)GEARBOX

(29)VALVE GP-SOLENOIDHYSTATINTERLOCK

(18)PUMPGP HYSTATPUMP

(20)SENSORGP-PRESS HYSTAT LOOP(FORWARD)

(2)ACCUMULATORGPCHARGE ACCUMULATOR

(14)ORIFICE GPMOTORFLUSHING

(11)MOTORGPHYSTAT(170cc)

(1)ACCUMULATORGP BRAKE ACCUMULATOR

(15)PEDALGP-BRAKE

(7)MANIFOLDGP BRAKE ACCUMULATOR

(22)SENSORGP-PRESSPARK BRAKE

(28)VALVE GP PARK BRAKE

(19)SENSORGPPRESSURE

(BRAKE CHARGE)

(13)MOTORGP -RADIATOR/HYDRAULICFAN(REVERSING)

(17)PUMPGP- FAN/BRAKE(W/ BRAKE CHARGING VALVE)

(4)COOLERGPXMSNOIL

(27)VALVE GP -CHECK(COOLERBYPASS)

P12

P11

P15P14P13P7

P16

P17

P10

(24)VALVE GP-HYDOILCOOLERBYPASS

(30)COOLERGP -HYDRAULICOIL

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U E

N R 4 7 1 3 - 0 0 V O L 2 o f 2

3 0 P a g e , ( D i m e n s i o n s : 3 9 i n c h e s x 2 8 i n c h e s )

Components areshowninstalledona fully operablemachinewiththekey andengineoff, transmissionshifter inneutralandwithparkingbrakeset.

RefertotheappropriateServiceManualforTroubleshooting, Specifications andSystems Operations.

VOLUME 2of 2:IMPLEMENT CIRCUITS

SCHEMATICPART NUMBER: 423-4719, CHANGE: 00, VERSION: --

924K, 930KAND 938KWHEEL LOADERHYDRAULICSYSTEM

MEDIA NUMBER: UENR4713-00

Note: RefertotheParts Manualusinga specific serialnumberprefix inSIS beforeorderingparts fromthis schematic.

12345678

A

B

C

D

E

F

12345678

A

B

C

D

E

F

LINE PATTERNS

Drain/ ReturnLines

Component Group

Pilot / LoadSensingPressure

PressureLine

Attachment

AirLine

CALLOUTS

Taps (Pressure, Sampling, Sensor-by letter)

Components (By number)

YY

52

HYDRAULICCIRCUIT COLORDESCRIPTIONS

PILOT PUMP OUTPUT

LUBE PUMP SUPPLY CIRCUIT

MAINPUMP OUTPUT

LUBE PUMP CIRCUIT

AUXILIARY 1CURCUIT

LOADSENSE CIRCUIT

STEERING CIRCUIT

FAN/BRAKE CHARGE PUMP

SUPPLY LINE

QUICK COUPLERCIRCUIT

BRAKE CIRCUIT

DIFFERENTIALLOCK CIRCUIT

AUXILIARY 2CURCUIT

DRAIN/ RETURNLINE

TILT CYLINDERCIRCUIT

LIFT CYLINDERCIRCUIT

HYSTAT CIRCUIT

M

L1S1

L4 L3

S2

LubePump

ChargePump

P

H

R

T S

Ride Control

HystatPump

M

Tilt Cylinder

Fan Motor Return

Cooler Return

Fan/BrakeSuction

To

GearBox

From Gear Box

Park BrakeValve

TP LS PP

C1 C2

To

Pp

P

CS

RCS

Lx

Ls

A AB B B

Tilt Lift Aux

1

T

C1

C2LS

P

LiftCylinders

L2

T

C2C1

P

LP RP

D

SB

B1 B2

B1 B2

S2

T

From

HystatInterlock

Valve

ToChargeCircuit

R

E

AB A

Aux

Tg

Steering PumpImplement Pump

X2

PG

X1

PPG

GP

Fan Motor Case Drain

Brake PedalValve

1:1DriveRatio

2

353-9375

375-0724

352-1108192-2684

6V-7238347-8096

352-1045

344-7391

(938K): 347-2352

349-8199

(50)TANK GPHYDRAULICTANK

258-2829

247-4503

344-7391

175-0447

9T-1013

346-5095

349-7843

366-8973

280-9978

9T-1013

373-7014

112-1817

307-3051

P

T

DL

Cooler Bypass

TP LS P P

LP RP

347-3852

9T-1013

L1S1 L4 L3S2

Steering

Pump

X2

L2

B1 B2

LubePump

ChargePump

FromGearBox

B1 B2

S2

ToChargeCircuit

Implement

Pump

X1

Implement / Steering Pump - 924K Campo Largo Brazil Only

ToGear Box

378-2838378-2847

(930K): 343-3048(924K): 343-3047

(938K): 347-3853(930K): 343-3050(924K): 343-3049

(938K): 347-3854(930K): 343-3052(924K): 343-3051

(938K): 365-6860(924K, 930K): 233-7133

(930K, 938K): 373-6960(924K): 373-7017

(930K, 938K): 373-6962(924K): 373-7016

(938K): 351-8515(930K): 351-8514

(938K): 347-3853(930K): 339-5593(924K): 374-9705

(938K): 347-3854(930K): 339-5594(924K): 374-9706

(938K): 347-3852(924K, 930K): 339-5595

(938K): 341-7623(924K, 930K): 307-3053

(938K): 341-7639(924K, 930K): 307-3081

(938K): 341-7662(930K): 307-3044(924K): 341-7660

(36)CYLINDERGPWIDE COUPLER

(51)TUBE ASFRONTFRAMERETURNMANIFOLD

(32)ACCUMULATORGP - RIDE CONTROL

(33)ACCUMULATORGP - RIDE CONTROL

(55)CYLGPFUSIONCOUPLER

(62)VALVE GPQUICK COUPLER

(59)VALVE-CHECKSTEERINGBACKPRESSURE

(64)VALVE-SHUTOFFPETCOCK VALVE

(41)MANIFOLDGPREARFRAME RETURN

(56)VALVE GP-CHECKIMPLEMENT

BACK PRESSURE

(48)SENSORGP-PRESSUREIMPLEMENTPUMP

DISCHARGE

(60)VALVE GP

DIFFERENTIALLOCK

(52)VALVE GP-BANK 2(IMPLEMENT)



(46)PUMPGP -IMPLEMENT

(34)BREATHERHYDRAULICTANK

(61)VALVE GPDUALMODESTEERING

(49)SENSORGP-PRESSPRIMARYSTEERING

(57)VALVE AS -CHECKSTEERING INLET (58)VALVE GP-CHECK

SECONDARYSTEERING

(42)MANIFOLDGPSTEERING

(39)CYLINDERGP -STEERING

(43)ORIFICE GP RIDE CONTROLPC

(63)VALVE GPRIDE CONTROL

(57)VALVE GP-CHECKRIDE CONTROLSUPPLY

(38)CYLGP- LIFT

(40)CYLGP- TILT

(31)ACCUMULATORGPPILOT

(55)VALVE GP-BALLDEADENGINE LOWER

(37)CYLGP-HIGHLIFT TILT

(45)PUMPGP -HAND METERING UNIT(W/DUALMODE STEERING)

(47)PUMPGPSECONDARYSTEERING

(W/ INTEGRATEDRELIEF)

P6

P3

P5

P1

P2P4

P18

(39)CYLINDERGPSTEERING

P1

(58)VALVE GP-CHECKSECONDARYSTEERING

(44)PUMPGP -HAND METERING UNIT

P4 P2

(65)PUMPGPIMPLEMENT

(66)PUMPGP

STEERING

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STEERING PUMP DETAIL

61

VIEW ALL CALLOUTS

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STEERING MANIFOLD DETAIL

P1

58

57

42

VIEW ALL CALLOUTS

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RIGHT SIDE VIEW

2 1

VIEW ALL CALLOUTS

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RIGHT SIDE VIEW

P11

P10

28

24

2221

2019 18

17

16

14

11

10

9

7

VIEW ALL CALLOUTS

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RIGHT SIDE VIEW

P18

P6P4 P264

63

62

60

59

57

55

51

50 4544

43

41

39

3534

3332

VIEW ALL CALLOUTS

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REAR VIEW

4

VIEW ALL CALLOUTS

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LEFT SIDE VIEW

P17

P16

P15P14P13 P12

P9

P8 P7 29

27

2625

23

15

13 128

6

5

VIEW ALL CALLOUTS

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FRONT VIEW

P5

P3

56545352

48

36

31

VIEW ALL CALLOUTS

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FRONT CYLINDERS

40

38

3735

VIEW ALL CALLOUTS

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Uenr4713uenr4713 Sis