Cat 14h Sistema Hidraulico

Component Locations

Description Accumulator - Steering ing

Part Number

10

Machine Location

248-6251

1 84 6 - 80 4

3

F-5,F-6

(Blade Lift)

2 62 -1 90 3

4

F-13, G-1, J-2, J-4

(Blade Tip)

9T-8944

5

G-11

(Articulation)

Cylinder Gp (2) Cylinder Gp Cyl ni der Gp

(Center Shift) 262-190 6

Cylinder Gp

(Side Shift)

9T-3206

Cyl ni der Gp

Steering (LH) 165-2495

C yl n i de rG p

Steering (RH) 1 65 2- 49 6

C yl n i de rG p

1 02 8 - 38 5

M an fi ol d- R g i ht

1 02 6 - 23 8

Mo o t rGp - G ea r

F-4 G-12 G-7

10 11

F-3

12

D-6 B-5

(Circle Drive) 9 T- 59 77

14

G-10

(Steering) Note A Note B

BASIC COMPONENT SYMBOLS

MAIN AUX.

PUMPorMOTOR

14

111-0490 222-3770

15

E-7

(Hydraulic Fan) 1 84 7 - 44 8

16

B-10

17

B-9

SPRING

FLUID CONDITIONER

SPRING (ADJUSTABLE)

VARIABILITY

CONTROLVALVES

PUMP:VARIABLEand 2-SECTIONPUMP PRESSURE COMPENSATED

LINE RESTRICTION (FIXED)

RESTRICTION

PRESSURE COMPENSATION

LINE RESTRICTION (VARIABLE)

4

HYDRAULIC PNEUMATIC ENERGYTRIANGLES

ATTACHMENT

LINERESTRICTION VARIABLE and PRESSURE COMPENSATED

VALVES VALVE ENVELOPES

VALVE PORTS

20 38 47

D-8

13

Pump Gp - Metering

FLUID POWER SYMBOLS

RENR4184-04 September 2005

9

G-8 9

(Hydraulic Fan) 2 24 7- 04 0

M ot or G p- G er ot or

P um pG p- P si o t n

6 7 8

(Wheel Lean) 1 21 9- 24 3

M an fi ol d- L ef t

8

B-6 D-1, D-14, H-7, I-14

2

101-9346 C yl in de rG p( 2)

Schematic Location

1

Cover

TWOPO SITIO N

ONE POSITION

A B

2

TWO-WAY

THREE-WAY

FOUR-WAY

CHECK VALVES

A B

PT SHIFT ED E D PO SITIO N

PT NORMAL POSITION

11 25 27

28 30 36 4 9

THREE PO SITIO N

CONTROL VALVES

6

7

INFIN INFI N ITE PO SITIO N

SPRING LOADED

BASIC SYMBOL

MEASUREMENT

S HU TT LE

P LI OT CONTROLLED

ROTATING SHAFTS

Pump Gp - Piston (Implement & Steering) S en so rG p- P re ss ur e S wi tc hA s- P re ss ur e

177-7517

(Fan Drive) 1 67 1 - 70 9 2 30 5 - 77 1

18 19

B -5 B -6

Swivel Gp

260-6502

20 20

F-11

T an kGp & F li e t r

2 07 2- 41 0

21

C-13

22

B-5

23

C-7

V al ve G p- C he ck

(Fan Drive) 1 75 0 - 44 7

V al v eG p- C o m b i na it o n

9 T 5- 95 7

V al v eG p- C o nt r ol

1 07 -0 56 0

24

E-6


(Blade Tip) 1 07 -0 55 4

25

E-9


(Center Shift) 1 07 -0 56 1

(Articulation)

26

E-5


(Circle Drive) 1 07 -0 55 5

27

E-11


(Left Blade Lift) 1 07 -0 55 7

28

E-13, H-4


(Right Blade Lift) 1 07 -0 56 4

29

E-2,H-2


(Side Shift) 1 07 -0 55 6

30

E-12

V al ve G p- C on rt ol (Wheel Lean) 6 E- 30 30 Valve Gp - Mounting & (Fan Speed Solenoid) 193-5765 Valve Gp - Pump Control (Pressure & Flow Compensator) (for Hydraulic Fan Pump) 168-2210 104-3122 (for Implement & Steering Pump) Valve Gp - Shuttle (Wheel Lean) 131-0753 Valve Gp - Unit Test 4 (LH) (Implement Control Valve Manifold) 104-8653

31

E-3

32

15 33 2

16 1

Description Accumulator Gp (2)

V al ve G p- C he ck

(Secondary Steering)

9 T- 10 13

V al ve G p- C he ck (Secondary Steering)

9 T- 61 46

V al ve G p- C on rt ol

(Plow/Dozer Lift) 1 07 0 - 55 9

V al v eG p- C on t or l

TEMPERATURE

BB

V EN TE D

FLOW

SOLENOID

17

CC

SOLENOID or MANUAL

SOLENOID and PILOT

MANUALSHUTOFF

E-1

Machine Location

Schematic Location

38 39

G-2, G-14

3

A-7

18

EXTERNALRETURN

INTERNAL RETURN

SPRING LOADED

39 The Following Control Valves may be located on either (LH)

I-9

Valve Gp - Control (Snow Wing LIft - Heel) 137-8106

45

I-13

PEDAL

S PR N I G

SIMPLIFIED

CROSSING AND JOINING LINES

COMPLETE

INTERNAL SUPPLY PRESSURE

HYDRAULIC AND PNEUMATIC CYLINDERS

D F W

GAS CHARGED

LINESCROSSING

HYDRAULIC PUMPS

LINES JOINING

SINGLE ACTING

DOUBLEACTING

INTERNALPASSAGEWAYS

HYDRAULICMOTORS

36 or (RH) 37 machine FIXED DISPLACEMENT

side dependent on machine arrangement.

C-7 I-10

PU S HB U T TO N

22

13

J-10

44

DETENT

REMOTE SUPPLY PRESSURE

ACCUMULATORS

41

THERMAL

PILOT CONTROL SYMBOLS RELEASED PRESSURE

E-14

42

SERVO

G EN ER AL M AN U AL

21

37

43

SOLENOID and PILOT or MANUAL

32

34

36

(Ripper) 1 0 7- 05 59

RETURNBELOW FLUID LEVEL

MANUAL CONTROL SYMBOLS

C-10 C-9

A-6

BD I R I EC TI ON AL

COMBINATIONCONTROLS

C-8

40

UN I DI R E CT O I NA L

RETURNABOVE FLUID LEVEL

P RE SS UR Z I ED

PUSH-PULL LEVER

(Blade Cushion) 160-9413

C yl i nd er G p- R i pp er 1 13 -5 26 4 Pump Gp - Electric Drive (Secondary Steering) 123-8915

ASE1-UP

19 23 48

Attachments Part Number

14H Motor Grader Hydraulic System

12 24 26 29 3 1 3 7 5 0

4 0 4 1 42

C-11

33 34 35

Valve Gp - Unit Test 4 (RH) (Implement Control Valve Manifold) 104-8674

PRESSURE

5

FLUID STORAGE RESERVOIRS AA

24 25 26 27 28

29

30 31 43 44 45

46

VARIABLE DISPLACEMENT NON-COMPENSATED

FIXED DISPLACEMENT

UNIDIRECTIONAL

VARIABLEDISPLACEMENT NON-COMPENSATED

INFINITE POSITIONING

TWO POSITION

THREE POSITION

UNIDIRECTIONAL

BIDIRECTIONAL

PARALLEL FLOW

FLOW IN ONE DIRECTION

BIDIRECTIONAL

CROSS FLOW

FLOW ALLOWED IN EITHER DIRECTION

Valve Gp - Control (Snow Wing Tilt - Toe) 137-8104

46

I-12

Valve Gp (2) - Mounting & (Blade Cushion Solenoid Valve) 253-1320 ValveGp-Relief (Secondary Steering) 9 T 8- 07 1

47 48

F-2, F-13 A-7

Machine Component Locations

©2005 Caterpillar All Rights Reserved

Printed in U.S.A.

AccuGrade Attachments Part Number

Machine Location

Schematic Location

Manifold Gp - Control (LH)

239-9893

49

I-4

Manifold Gp - Control (RH)

239-9894

50

I-1

Description

Steering Pump Supply

Electrical Symbols Table

Misc Ref Inst - Test

AA

6E-3164

16

Note A: Used on 14H(1-746). Note B: Used on 14H(747-UP). Note C: Used on 14H(747-818).

32

33 Line for Pump to the Fan Speed Solenoid

Signal Line

Hydraulic Symbols (Electrical)

Implement Supply Lines Implement Drain Lines

23

Tap Locations Pressure, Sampling, and Sensor Tap Number

Description

M

G Transducer (Fluid)

Transducer (Gas / Air)

Generator

Electric Motor

Tank Return Line Schematic Location

AA

Pump Output Pressure

BB

Implement & Steering Load Sensing Signal Pressure

(Fan)

C- 9

CC

P u mp S u pp l y P r es s u e r

B-8

( I mp l e me n t / S t ee r n i g)

AA

C-12

Pressure Switch (Adjustable)

Pressure Switch

23

Electrical Symbols (Electrical)

BB Vent Line to the Combination Valve

Implement Signal Lines

CC

BB 34

Line to the Hydraulic Tank from the Makeup Valve

T

Pressure Symbol

Temperature Symbol

Hydraulic & Steering System

Line to the Makeup valve from the Pump

Flow Symbol

Level Symbol

Wire Number Identification Codes Electrical Schematic Example

Hydraulic Schematic Example CurrentStandard

CurrentStandard Harness identification code This example indicates wire 135 in harness "AG".

1

Electrical Wire

Temperature Switch

Wire Circuit Number Identification

WireColor

325-AG135 PK-14

23

325-PK

13 42 Line to the Makeup Valve from the Fan Drive Motor

ALT.

CC Alternate Location for some models.

BB

CircuitIdentification Number

Line to the Fan Drive Motor from the Makeup Valve

WireColor

WireGauge

Previous Standard

22

Wire Color

Wire

325-PK-14

18 34

Combination Valve

B Circuit Number Identification

Hydraulic Fan Drive

Combination Valve

A

Wire Gauge (EXAMPLE VALVE)

4 0 4 8 e 1 g a 4 P 6 1 R N E R

14

13

12

11

10

9

8

7

6

CYLINDER GP RIPPER 113-5264

5

4

3

CYLINDER GP (BLADELIFT) 262-1903

J VALVE GP CONTROL (SNOW WING TILT - TOE) 137-8104

VALVE GP CONTROL (SNOW WING LIFT -HEEL) 137-8106

VALVE GP CONTROL (RIPPER) 107-0559

VALVE GP CONTROL (PLOW/DOZER LIFT) 107-0547


J

MANIFOLDGP CONTROL(RH) 239-9894 VALVE GP CONTROL (LEFT BLADE LIFT) 107-0557

B

PLOW / DOZER LIFT

VALVE GP CONTROL (RIGHT BLADE LIFT) 107-0564

A

B

COVER RIGHT 101-9346

COVER LEFT 101-9346

I BLADE LIFT

E D C B A

H


LS

CYLINDER GP (BLADE TIP) 9T-8944

CYLINDERGP (SIDE SHIFT) 9T-3206

CYLINDERGP STEERING(LH) 165-2495

MOTOR GP GEROTOR (CIRCLEDRIVE) 9T-5977

ACCUMULATOR GP (BLADE CUSHION) 160-9413

BLADE LIFT

K J H G F

SNOW WING TILT (TOE)

SNOW WING LIFT (HEEL)

VALVE GP MTG & (BLADECUSHION SOLENOID) 253-1320

G

1

MANIFOLDGP CONTROL(LH) 239-9893

A RIPPER

I

2

BLADE LIFT

P

T

T1

LS

CYLINDER GP STEERING(RH) 165-2496

P

T

T1

H

ACCUGRADEATTACHMENTS CYLINDER GP ARTICULATION 184-6804

VALVE GP MTG & (BLADECUSHION SOLENOID) 253-1320

ACCUMULATOR GP (BLADECUSHION) 160-9413


G

CYLINDERGP (CENTERSHIFT) 262-1906 PUMP GP METERING (STEERING)

SWIVEL GP 260-6502

VALVE GP UNIT TEST 4 (LEFT IMPLEMENT CONTROL VALVE MANIFOLD) 104-8653

MANIFOLD RIGHT 102-6238

Note B 222-3770

BLADE CUSHION ATTACHMENT

E

CYLINDER GP (WHEELLEAN) 121-9243

Note A 111-0490

F

VALVE GP CONTROL (LEFT BLADE LIFT) 107-0557

VALVE GP CONTROL (SIDESHIFT) 107-0556

VALVE GP CONTROL (CIRCLEDRIVE) 107-0555

SIDE SHIFT

BLADE LIFT

MANIFOLD LEFT 102-8385

VALVE GP CONTROL (BLADE TIP) 107-0554

CIRCLE DRIVE

VALVE GP CONTROL (ARTICULATION) 107-0560

BLADE TIP

F

BLADE CUSHION ATTACHEMENT

VALVE GP CONTROL (CENTERSHIFT) 107-0561

VALVE GP CONTROL (RIGHTBLADE LIFT) 107-0564

VALVE GP CONTROL (WHEEL LEAN) 6E-3030

WHEEL LEAN

CENTER SHIFT

ARTICULATION

VALVE GP UNIT TEST 4 (RIGHTIMPLEMENT CONTROL VALVE MANIFOLD) 104-8674

E

BLADE LIFT

COVER LEFT 101-9346

E D C B A

D

4 0 - 4 4 r 8 l o o 1 C , 4 e g a R P 6 N 1 E R

K J H G F

TANK GP FILTER & 207-2410

VALVE GP PUMP CONTROL 168-2210

VALVE GP MTG & (FANSPEED SOLENOID) 193-5765

PRESSURE & FLOW COMPENSATOR VALVE

VALVE GP PUMP CONTROL 104-3122

BB

SIGNAL LINE PRESSURE

VALVE GP CHECK (SECONDARY STEERING) 9T-6146

PRESSURE & FLOW COMPENSATOR VALVE

C AA SIGNAL PURGE VALVE

PUMP OUTPUT PRESSURE SIGNAL RELIEF VALVE

COVER RIGHT 101-9346

C LINE PATTERNS

HYDRAULIC CIRCUIT COLOR DESCRIPTIONS Implement & Steering Pump Output.

Pressure Line

STEERING PRIORITY VALVE

SecondarySteeringPumpOutput.

Pilot / Load Sensing Pressure

Steering Metering Pump Output and CylinderCircuit.

Drain / Return Lines

Hydraulic Fan Pump Output. Snow Wing Lift and Tilt Cylinder Circuits.

SWITCH AS PRESSURE 230-5771

PUMP SUPPLY PRESSURE H YD RA UL C I F AN P UM P

MOTOR GP GEAR (HYDRAULIC FAN) 224-7040

ACCUMULATOR GP STEERING 248-6251

SIGNAL RESOLVER VALVE

CC

B

VALVE GP COMBINATION 9T-5957

D

Component Group

Supply Line. Drain / Return Line.

Attachment

IMPLEMENT RELIEF VALVE

Ripper Cylinder Circuit.

STEERING RELIEF VALVE

Blade Tip Cylinder Circuit.

CALLOUTS

VALVE GP CHECK (FAN DRIVE) 175-0447

I MP LE ME NT / S TE ER N I GP UM P

B

Signal Line

Air Line

Steering (Circle Drive) Control Circuit. Side Shift Cylinder Circuit.

YY 1

Taps (Pressure, Sampling, Sensor) by letter

Blade Lift Cylinder Circuits. Articulation Cylinder Circuit.

Components by number

Center Shift Cylinder Circuit. Wheel Lean Cylinder Circuit.

ADAPTER SECONDARYSTEERING HYDRAULIC PUMP

A

14

13

12

PUMP GP PISTON (HYDRAULIC FAN) 184-7448

PUMP GP PISTON (IMPLEMENT& STEERING) 177-7517

11

10

VALVE GP RELIEF (SECONDARY STEERING) 9T-8071

VALVE GP SHUTTLE Note C 131-0753

9

8

7

Note A: Used on 14H(1-746). Note B: Used on 14H(747-UP). Note C: Used on 14H(747-818).

A

PUMP GP ELECTRICDRIVE (SECONDARY STEERING) 123-8915

VALVE GP CHECK (SECONDARY STEERING) 9T-1013

6

Plow/Dozer Lift Cylinder Circuit.

SENSOR GP PRESSURE (FAN DRIVE) 167-1709

THIS SCHEMATIC IS FOR THE 14H Motor Grader Part #: 172-9361 CHG07 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.

5

4

3

2

1

Cat 14h Sistema Hidraulico

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