Sơ đồ thủy lực máy ủi caterpillar

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ONE POSITION TWO POSITION THREE POSITION

VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL

LINES CROSSING LINES JOINING

TWO-WAY THREE-WAY FOUR-WAY

SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION

(FIXED)

2-SECTION PUMP MAIN AUX.

SPRING (ADJUSTABLE)

(VARIABLE)

LINE RESTRICTION

VARIABLE and PRESSURE COMPENSATED

PRESSURE COMPENSATION

PUMP: VARIABLE and PRESSURE COMPENSATED

ENERGY TRIANGLES HYDRAULIC PNEUMATIC

MEASUREMENT

PRESSURE TEMPERATURE FLOW

ROTATING SHAFTS

UNIDIRECTIONAL BIDIRECTIONAL

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FIXED DISPLACEMENT

VARIABLE DISPLACEMENT NON-COMPENSATED UNIDIRECTIONAL

BIDIRECTIONAL

HYDRAULIC PUMPS

FLUID STORAGE RESERVOIRS

CROSSING AND JOINING LINES

BASIC COMPONENT SYMBOLS

FLUID CONDITIONER PUMP or MOTOR

FLUID POWER SYMBOLS

FIXED DISPLACEMENT

BIDIRECTIONAL

VALVES

PILOT CONTROL SYMBOLS

RELEASED PRESSURE

EXTERNAL RETURN INTERNAL RETURN

REMOTE SUPPLY PRESSURE

SIMPLIFIED COMPLETE INTERNAL

SUPPLY PRESSURE

ACCUMULATORS

SPRING LOADED GAS CHARGED

SOLENOID

or MANUAL

SOLENOID and PILOT

SOLENOID and PILOT or MANUAL

COMBINATION CONTROLS

HYDRAULIC AND PNEUMATIC CYLINDERS

DOUBLE ACTING SINGLE ACTING

BASIC SYMBOL

SPRING LOADED

CHECK VALVES

TWO POSITION INFINITE

POSITIONING

FLOW IN ONE DIRECTION

FLOW ALLOWED IN EITHER DIRECTION

THREE POSITION

CROSS FLOW PARALLEL FLOW

INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

P T SHIFTED POSITION INFINITE POSITION

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOT

CONTROLLED

Hydraulic Symbols (Electrical) Electrical Symbols Table

325-AG135 PK-14

Circuit Identification Number Wire Color Wire Gauge

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

325-PK-14

Wire Gauge Wire Color

Circuit Number Identification

Wire Number Identification Codes

Current Standard

Previous Standard

325-PK

Wire Color Circuit Number

Identification

Wire

(EXAMPLE VALVE)

Current Standard

Transducer

G

Generator

Electrical Wire Pressure Switch

M

Electric Motor

Pressure Switch (Adjustable)

Temperature Switch

T

Pressure Symbol

Temperature Symbol

Level Symbol

Flow Symbol

Electrical Symbols (Electrical)

Printed in U.S.A.

KENR5152 December 2006

D6K Track-Type Tractor Hydraulic and Power Train System

DHA1-UP FBH1-UP

40

20

1

22

21

30

31

31A

REMOTE PRESSURE PORT

R13

24

CHARGE FILTERS

PUMP GROUP

Note: Taps P14 through P21 are located on the underside of the of the Drive Pumps (20)

Taps P22 and P23 are located on the underside

of the Winch Pump (the winch pump is not shown)

4 40

3

IMPLEMENT VALVE

WINCH

RIPPER

3

8

Ripper

Angle Tilt

Lift

Angle Tilt

Lift

10

9 22

23 25 26 41

Left Rear Access Panel

Right Rear Access Panel

FAN MOTOR and FAN MANIFOLD

Machine Control

NO PART NO DESCRIPTION

IMPL

HYSTAT

FAN

MISC

COMPONENT LIST

PRESSURE TAPS

REMOTE PRESS PORTS

RI WINCH PUMP 'Mb' PORT

R3 IMPL PUMP SIGNAL PRESS 'LS' PORT R4 REAR PUMP 'G' PORT

R6 FRONT PUMP 'Mb' PORT R7 WINCH PUMP 'Ma' PORT

R11 IMPL PUMP OUTLET PRESS R12 REAR PUMP 'Mb' PORT R13 IMPL PUMP FILLING PORT

LOCAL PRESS PORTS

P14 FRONT PUMP 'MA' PORT P15 FRONT PUMP 'X1' PORT P16 FRONT PUMP 'X2' PORT P18 REAR PUMP 'MA' PORT P19 REAR PUMP 'X1' PORT P20 REAR PUMP 'X2' PORT P21 REAR PUMP 'Y' PORT

TAP

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May 2005

D6M Track-Type Tractor

Hydraulic System

9ZM1-UP

2RN1-UP

3WN1-UP

4JN1-UP

5NR1-UP

5WR1-UP 6LR1-UP 2YS1-UP 4GS1-UP 4HS1-UP

Printed in U.S.A.

SENR8390-01

(FIXED)

SPRING (ADJUSTABLE)

(VARIABLE)

LINE RESTRICTION

MEASUREMENT

ROTATING SHAFTS

FIXED DISPLACEMENT VARIABLE DISPLACEMENTNON-COMPENSATED

HYDRAULIC PUMPS

FIXED DISPLACEMENT

BIDIRECTIONAL

VALVES

RELEASED PRESSURE

SUPPLY PRESSURE

ACCUMULATORS

SOLENOID

or MANUAL SOLENOIDand PILOT

BASIC SYMBOL

SPRING LOADED

CHECK VALVES

TWO POSITION

INFINITE POSITIONING

THREE POSITION

NORMAL POSITION

A B

P T

A B

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOT

CONTROLLED

325-AG135 PK-14

325-PK-14

Wire Gauge

Wire Color

Current Standard

Previous Standard

325-PK

Identification

Wire

(EXAMPLE VALVE)

Current Standard

Transducer

G

Generator

M

Electric Motor

Temperature Switch

T

Pressure

Flow Symbol

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12

13 14 15

16

17 18

9

10

d74513

7 8

6

5

12

D

19 20

E

4 8

3 2

K

N

M E

14

9 F

11

10 D

C

D CC

E 15

16

V R

Q

W

S T U T

V

17

17 X

U

18 P

EE

CC

K J

G H

S

D74312

A Cylinder Bypass

B Rod End

C Head End

D Suction

E Pump Case Drain

F Implement Return

G Float Detent

H Pump Signal

I Ports Blocked when Using "SU" Blade

J Line AA-BB Blocked for Power Beyond EndCover

Line AA-BB Open for Standard End Cover

K For Power Beyond Use 4T-7862 End Cover

L System Pressure

M Signal Pressure

N Baffle

D6M Schematic

1 4 Bank Valve Group (All Dozers with Ripper) 1

3 Bank Valve Group (Standard "P" Dozer) 1

2 Bank Valve Group ("SU" Blade) 1

2 Inlet Manifold Cover Assembly 1

3 Dozer Lift Valve Group (STD "P" Lift) 1 Dozer Lift Valve (Dozers with "SU" Blade or

4 Dozer Tilt Valve Group (STD) 1

5 Dozer Angle Valve Group (STD) 1

6 Ripper Lift Valve Group 1

9 Cylinder Group (STD "P" Lift) 2 Cylinder Group ("SU" Lift) 2

10 Cylinder Group (STD "P" Tilt) 1

Cylinder Group ("SU" Tilt) 1

11 Cylinder Group (STD "P" Angle) 2

12 Cylindeer Group (Ripper Lift) 2

16 Make Up Valve Group (With Line Relief) 2

17 Make Up Valve Group With Line Relief(Dozers With "SU" Blade or Ripper) 1

Hydraulic System Components

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(FIXED)

SPRING (ADJUSTABLE)

(VARIABLE)

LINE RESTRICTION

MEASUREMENT

ROTATING SHAFTS

FIXED DISPLACEMENT

BIDIRECTIONAL

HYDRAULIC PUMPS

FIXED DISPLACEMENT

BIDIRECTIONAL

VALVES

RELEASED PRESSURE

SUPPLY PRESSURE

ACCUMULATORS

SOLENOID

or MANUAL

SOLENOID and PILOT

BASIC SYMBOL

SPRING LOADED

CHECK VALVES

POSITIONING

THREE POSITION

NORMAL POSITION

A B

P T

A B

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOT

CONTROLLED

325-AG135 PK-14

325-PK-14

Current Standard

Previous Standard

325-PK

Identification

Wire

(EXAMPLE VALVE)

Current Standard

Transducer

G

Generator

M

Electric Motor

Temperature Switch

T

Pressure

Flow Symbol

Printed in U.S.A.

KENR5140-01 February 2007

D6N Track-Type Tractor Hydraulic System

DJA1-UP JAH1-UP ERL1-UP JAL1-UP DJY1-UP

Tap

Schematic Location

Tap Locations

E-2

C-2, D-3

Machine Location Description

Part Number

Schematic Location

3 Valve Bank (STD) 246-4208

4 Valve Bank (with Ripper) 246-4206

2 Manifold Cover AS 9T-6695 B-7

Lift Valve (No Ripper) 246-4211 Lift Valve (With Ripper) 246-4212

4 Tilt Valve 246-4214 D-7

5 Angle Valve 238-4825 E-6

6 Ripper Valve 247-1745 F-6

Lift Check Valve 1U-2744 C-6 Ripper Check Valve 1U-2744 F-6 Lift Cylinder (P Blade) 110-3269

Lift Cylinder (SU Blade) 115-3524 Tilt Cylinder (P Blade) 160-0054 Tilt Cylinder (SU Blade) 115-3523

11 Angle Cylinder 152-6485 C-5, E-5

12 Ripper Lift Cylinder 9T-2716 E-8

13 Hydraulic Oil Tank 230-9131 A-3

14 Implement Return Filter 1R-0777 A-3

15 Case Drain Filter 169-4019 B-3

16 Implement Pump 195-9097 C-3

Angle Relief Valve A 6E-0772 Angle Relief Valve B 6E-0772

18 Make Up Valve 132-5303 C-6

19 Angle Valve Plug 148-8409 D-6

20 Resolver Valve 248-6162 B-4

21 Steering Pump 257-8470 D-2

22 Steering Motor 191-9536 F-2

24 Cooler Bypass Valve 126-0747 E-4

25 Charge Circuit Filter 110-4664 D-2

26 Steering Pilot Valve 9T-8693 D-3

27 Cold Start Valve 198-9219 F-3

28 Dozer Pilot Valve 235-0889 A-6

29 Ripper Pilot Valve 230-9136 A-8

30 Pressure Reducing Valve 162-0162 C-8

32 Accumulator 200-0750 C-8

33 Pilot Control Manifold 250-5788 A-4

34 Shuttle Valve 231-5213 B-5

Component Locations

1

10 9 8

17

B-6

C-5, E-5

D-5

E-6

Implement Pump Pilot Control Manifold

Machine Component Location

SOS

Y1

B

D

Y2

K

C

25

22

10

28

23

1

10

11 9

12

13

22

16

14

24 32

7 6

5

2

8

4

17 19

3

8

15 30

20

29 31

22

1

25

23

16 33

28 26

26

34

33

34

33

Steering charge circuit oil enter the charge filter (25) through the right hand fitting.

Clean filtered charge circuit oil exits the filter at the left hand fitting and flows to the pilot steering control and the steering pump.

A combination S•O•S and fluid sampling port (K) is installed on the inlet side of the charge circuit filter base

The implement pump (16) is mounted

to the lower left rear face of the torque converter housing.

The Pilot Control Manifold (33) for the AccuGrade™ system is located below the bank 4 valve stack behind the right hand lower interior trim panel

Located inside the machine right fender outside compartment is the Hydraulic Pressure Remote Test Port panel Machine system pressures can be checked and monitored here The arrangement of the pressure ports on this panel are:

- D Pilot Supply.

- E Charge pump relief.

- A Implement pump discharge.

- SOS Oil Sampling.

- Y2 Left steer pilot.

- Y1 Right steer pilot.

- MA Right steer loop.

- MB Left steer loop.

- B Implement pump signal.

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THIS SCHEMATIC IS FOR THE D6N TRACK-TYPE TRACTOR

PART #: 246-5101 CHG 05

Components are shown installed on a fully operable machine with the engine off

LINE PATTERNS

Drain / Return Lines Component Group

Pilot / Load Sensing Pressure Pressure Line

Attachment Air Line

CALLOUTS

Taps (Pressure, Sampling,Sensor) by letter

Components by number

YY

52

Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations

DRAIN / RETURN LINE

HYDRAULIC CIRCUIT COLOR DESCRIPTIONS

IMPLEMENT PUMP CIRCUIT STEERING PUMP CIRCUIT

STEERING CIRCUIT

PILOT OIL CIRCUIT ANGLE CYLINDER CIRCUIT

RIPPER CYLINDER CIRCUIT

RESOLVER CIRCUIT SUPPLY LINE

RIPPER CONTROL CIRCUIT TILT CYLINDER CONTROL CIRCUIT

LIFT CYLINDER CIRCUIT LIFT CYLINDER CONTROL CIRCUIT STEERING ACTUATOR CIRCUIT

88

8

A B C D

E

F

8

A B C D

E F

1 2

3 4

5 6

7

2 3

4 5

A

C D F

B

2 3

4 5

A

C D F

B

6

7

E

Tap Number Description Schematic Location

X1 Right Steer Actuator X2 Left Steer Actuator

Y2 Left Steer Pilot

Tap Locations

E-2 C-2, D-3

JOYSTICK THUMB

TO ANGLE VALVE E/H SOLENOID VALVES

Machine Location Description Number Part Schematic Location

3 Valve Bank (STD) 246-4208

4 Valve Bank (with Ripper) 246-4206

2 Manifold Cover AS 9T-6695 B-7

Lift Valve (No Ripper) 246-4211 Lift Valve (With Ripper) 246-4212

4 Tilt Valve 246-4214 D-7

5 Angle Valve 238-4825 E-6

6 Ripper Valve 247-1745 F-6

7 End Cover 240-9086 F-7

Lift Check Valve 1U-2744 C-6 Ripper Check Valve 1U-2744 F-6 Lift Cylinder (P Blade) 110-3269

Lift Cylinder (SU Blade) 115-3524 Tilt Cylinder (P Blade) 160-0054 Tilt Cylinder (SU Blade) 115-3523

11 Angle Cylinder 152-6485 C-5, E-5

12 Ripper Lift Cylinder 9T-2716 E-8

13 Hydraulic Oil Tank 230-9131 A-3

14 Implement Return Filter 1R-0777 A-3

15 Case Drain Filter 169-4019 B-3

16 Implement Pump 195-9097 C-3

Angle Relief Valve A 6E-0772 Angle Relief Valve B 6E-0772

18 Make Up Valve 132-5303 C-6

19 Angle Valve Plug 148-8409 D-6

20 Resolver Valve 248-6162 B-4

21 Steering Pump 257-8470 D-2

22 Steering Motor 191-9536 F-2

23 Cooler 274-5095 E-4

24 Cooler Bypass Valve 126-0747 E-4

25 Charge Circuit Filter 110-4664 D-2

26 Steering Pilot Valve 9T-8693 D-3

27 Cold Start Valve 198-9219 F-3

28 Dozer Pilot Valve 235-0889 A-6

29 Ripper Pilot Valve 230-9136 A-8

30 Pressure Reducing Valve 162-0162 C-8

31 Screen 6E-5066 B-8

32 Accumulator 200-0750 C-8

33 Pilot Control Manifold 250-5788 A-4

34 Shuttle Valve 231-5213 B-5

Component Locations

1

10 9 8

17

B-6

C-5, E-5

D-5

E-6

RIPPER

LIFT

ANGLE

TILT

LIFT

ANGLE

DOZER LIFT

RIPPER

RAISE B LOWER A

RIGHT B LEFT A

DOZER TILT

RAISE B LOWER A

INLET

END COVER

RIGHT B LEFT A

LOWER BOOST SIGNAL

BAFFLE

ELEC DET

33

18

12

32

30

31

29

1 2

3 4

6

17 5

19

8

20

9

11

10

11

9

17

8 7

28

13

14

15 16

21

C4 C3

C2 C1

A D E F G

B Y2 Y1 MB MA

X2

X1

MA MB

E F

Y1 Y2

C

SOS

ANGLE

REMOTE TAP PANEL

POWER TRAIN ECM VPAT BLADE ATTACHMENT

34

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SENR9499-01 February 2001

D6R Track-Type Tractor

4FM1-Up (Machine)

8TM1-Up (Machine)

9BM1-Up (Machine)

3ZN1-Up (Machine)

5LN1-Up (Machine)

7KN1-Up (Machine)

9MN1-Up (Machine)

9PN1-Up (Machine)

DMP1-Up (Machine)

4TR1-Up (Machine)

5PR1-Up (Machine)

5RR1-Up (Machine)

7DR1-Up (Machine)

7GR1-Up (Machine)

1RW1-Up (Machine)

Hydraulics

Differential Steering

Trang 7

1

19

20 21 22

23

24

2

5

6

8 7

9

10

11

13

12

16

17 18

A B C

1 Main Relief Valve Group

2 Charging Valve Group

3 Quick-Drop Valve Group

4 Bulldozer Lift Cylinder Group

5 Rod End of Cylinder

6 Head End of Cylinder

7 Counterbalance Valve Group

8 Steering Motor Group

9 Cooler Bypass Valve Group

10 Pump Group Cooling Circuit

11 Implement and Steering Pump Group

12 Case Drain Filter Group

13 Baffle

14 Return Filter

15 Hydraulic Tank and Filter Group

16 Breather Valve Group

17 Bulldozer Dual Tilt Cylinder Group (optional)

18 Bulldozer Tilt CylinderGroup (optional)

19 Ripper Lift Cylinder Group

20 End Cover

21 Ripper Lift Control Valve

22 Bulldozer Tilt Valve Group

23 Bulldozer Lift Valve Group

24 Steering Valve Group

A Signal Pressure

B Margin Pressure

C System Pressure

HYDRAULIC SYSTEM COMPONENTS

Trang 8

(FIXED)

SPRING (ADJUSTABLE)

(VARIABLE)

LINE RESTRICTION

MEASUREMENT

ROTATING SHAFTS

FIXED DISPLACEMENT

BIDIRECTIONAL

HYDRAULIC PUMPS

FIXED DISPLACEMENT

BIDIRECTIONAL

VALVES

RELEASED PRESSURE

SUPPLY PRESSURE

ACCUMULATORS

SOLENOID

or MANUAL

SOLENOID and PILOT

BASIC SYMBOL

SPRING LOADED

CHECK VALVES

POSITIONING

THREE POSITION

NORMAL POSITION

A B

P T

A B

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOT

CONTROLLED

325-AG135 PK-14

325-PK-14

Current Standard

Previous Standard

325-PK

Identification

Wire

(EXAMPLE VALVE)

Current Standard

Transducer

G

Generator

M

Electric Motor

Temperature Switch

T

Pressure Symbol

Temperature Symbol

Level Symbol

Flow Symbol

Electrical Symbols (Electrical) Differential Steering - Standard, Power Angle Tilt, and Accugrade Options

RENR4275-03 November 2004

D6R Series II Track-Type Tractor Hydraulic System

AAX1-UP BMY1-UP BPZ1-UP BRZ1-UP

BNC1-UP ADE1-UP BRE1-UP DAE1-UP BNL1-UP

AFM1-UP BPM1-UP AEP1-UP BLT1-UP FDT1-UP

Printed in U.S.A.

TOP LEFT SIDE VIEW

TOP VIEW

FRONT VIEW

LEFT SIDE VIEW

DOZER ANGLE RIPPER LIFT DOZER TILT DOZER LIFT STEERING

RIPPER / WINCH DOZER TILT DOZER LIFT STEERING

DOZER TILT

DOZER LIFT

STEERING

FW D

FWD

Machine Component Locations

Description Part

Number

Machine Location

Schematic Location

Accumulator Gp - Pilot Circuit 200-0750 1 D-12

Cooler Gp - Hydraulic Oil 169-3806 2 G-5

Cover - Valve Stack 169-9119 3 C-9

Cylinder Gp - Angle 203-0820 4 E-1

Cylinder Gp - Dual Tilt Note A 9T-6095 5 G-1

Cylinder Gp - Ripper Lift 9T-2716 7 I-12

Cylinder Gp - Single Tilt 166-2582 8 F-1

Element - Imp Return 4T-0552 9 E-5

Filter - Case Return 9T-8999 10 F-5

Pump Gp - Piston 162-0324 11 G-4

Manifold Gp - Inlet 164-8913 14 H-9

Manifold Gp - Block 222-0417 13 D-7

Manifold Gp - Blade Tilt & Angle Cy Rel 212-3726 12 F-2

Sensor Gp - Pressure 224-4535 18 B-5

Tank Gp - Filter

Note B Note D

197-0959 19 E-5

Valve Gp - Mounting & 234-5126

20

A-5

Valve Gp - Breather 3G-4783

22

F-5

Valve Gp - CBAL (Lift Circuit) 239-0681

23

G-3 21

Valve Gp - Control (Angle) 208-1492 D-9

Valve Gp - Control (Dozer Lift) 162-8040 F-9

Valve Gp - Control (Dozer Tilt)

25 Note D 216-8609

E-9 24

Note A 162-8041

Valve Gp - Control (Ripper) 162-8042

26

E-9 Valve Gp - Control (Steering) 107-1191

27

G-9 Valve Gp - Control (Winch) 232-4854

28

E-7

30 Valve Gp - Pressure Reducing & Check 162-0162 31 E-11

Valve Gp - Quick Drop 113-5429 32 H-2

Valve Gp - Shut-Off 130-4531 34 D-11

Valve Gp - Solenoid 206-4795 35 D-7

Valve Gp - Steering Counter-Balance 9T-4789 36 H-5

Motor Gp - Steering Motor 159-7156 15 G-5

Valve Gp - Winch Pilot 160-0766 38

39

A-12 Winch Arr - Paccar Winch Unit 232-6203 G-12

Component Locations

Valve Gp

- Unit Test 5 (Note D, H)

- Unit Test 4 (Note A, E)

- Unit Test 4 (Note A, G)

- Unit Test 3 (Note A, F)

206-7334 162-8036 232-5921 162-8034

37 H-9

Valve Gp - Ripper Pilot (Single Axis)

Note C

Valve Gp - Cooler Bypass

(Pressure Based) 119-9620

29

G-6

167-1177 33 C-12

Cylinder Gp - Lift

(Std) (LGP)

127-8931 129-4258

6 H-2

Valve Gp - Dozer Pilot Valve

DS

DS (CTCT) PAT PAT(CTCT)

200-0189 240-9654 206-7333 240-9655

C-4

Resolver Valve

233-6942 238-4986

16 17

A-5 F-7, F-10

Note A: Only on DS and DS (CTCT)

Note B: Only on AccuGrade Option

Note C: For Angle Pilot Control Press

Note D: Only on PAT and PAT (CTCT)

Note E: Steer, Dozer Lift/Tilt, Ripper

Note F: Steer, Dozer Lift/Tilt

Note G: Steer, Dozer Lift/Tilt, Winch

Note H: Steer, Dozer Lift/Tilt/Angle, Ripper Lift

Note I: Only on DS

Note J: Only on DS (CTCT)

Note K: Only on PAT

Note L: Only on PAT (CTCT)

Power Angle Tilt - Option

Standard Dozer Blade

Lines Group - Pump

Pump Gp - Pressure Taps Lines Group - Implement & Steering Pump

9

2 32

4 8

10 12

3

1

16

14 17 21

23 24 25 26 37

22 15

22

11

1 31

34

27 13

33 35

38

9

12

3 10 14 16 17 19

21 23 24 25 37

1

18

31 34

13 20 27

33 35 38

38

28

4

5

8

15 36

2 32

HB

HA

HB

HA

HB

HA

CP

K

K BB

Unit Test 3 - 162-8034

Unit Test 4 - 162-8036 (Ripper)

Optional - Ripper & Winch

37 7

Tap

Number Description

Schematic Location

F-5

H-4 E-11

F-5 H-5 G-5 D-11

(Pressure Tap after Pressure Reducing Valve and after Discharge Valve.)

Pilot Supply

K Upstream Filter

SOS Oil Sampling Port

Tap Locations Pressure, Sampling, and Sensor

HA Implement Pump Discharge - at Valve

BB Oil Cooler (Outlet) and Steering Motor (Supply) Port

MB Steering Port B

MA Steering Port A

HB Implement Pump Signal - at Valve

Compensator Valve

Piston-type Pump

Trang 9

RENR4275-03 30

STANDARD

ACCUGRADE

STANDARD

ACCUGRADE

STANDARD

ACCUGRADE

A

B

C

D

E

F

G

H

I

A B C D E F G H I

Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral

Note A: Only on DS and DS (CTCT) Note B: Only on AccuGrade Option Note C: For Angle Pilot Control Press Note D: Only on PAT and PAT (CTCT) Note E: Steer, Dozer Lift/Tilt, Ripper Note F: Steer, Dozer Lift/Tilt Note G: Steer, Dozer Lift/Tilt, Winch Note H: Steer, Dozer Lift/Tilt/Angle, Ripper Lift Note I: Only on DS

Note J: Only on DS (CTCT) Note K: Only on PAT Note L: Only on PAT (CTCT)

HYDRAULIC CIRCUIT COLOR DESCRIPTIONS

Implement Pump Output.

Tilt Cylinder Control Circuit.

Supply Line.

Drain / Return Line.

Angle Cylinder Control Circuit.

Dozer Lift Cylinder Control Circuit.

Steering Control Circuit.

Ripper / Winch Cylinder Control Circuit.

MACHINE ARRANGEMENTS

Power Angle Tilt (PAT) Option

AccuGrade Option

Ripper / Winch Option

HYDRAULIC

COLOR LEGEND

LINE PATTERNS

Drain / Return Lines Component Group

Pilot / Load Sensing Pressure Pressure Line

Attachment Air Line

CALLOUTS

ARROW PATTERNS

Taps(Pressure, Sampling, Sensor) by letter Componentsby number

Connectionsby letter

AccuGrade Options Ripper / Winch Options

Tilt Options

1 AA YY

THIS SCHEMATIC IS FOR THE D6R SERIES II - DS, DS (CTCT), PAT, PAT (CTCT)

Part #: 172-0096 CHG03 D6R SERIES II - DIFF STR Part #: 238-1904 CHG03 D6R SERIES II - DS (CTCT) Part #: 211-3269 CHG04 D6R SERIES II - PAT Part #: 238-1903 CHG02 D6R SERIES II - PAT (CTCT)

BB

HB

K MB

MA

SOS

DD

DD CC

EE

C4

C4 C3 C2 C1 C3

CC

EE

ZZ

XX

W W

YY

YY XX

W W

HA

CP

SEE LOC G-11

SEE LOC H-11

SEE LOC I-6

SEE LOC A-11

SEE LOC B-11

SEE LOC D-7

SEE LOC D-9

SEE LOC D-8

SEE LOC D-7

SEE LOC E-2

SEE LOC D-8

1

2 3

4

A B C D

CYLINDER GP LIFT

STD 127-8931 LPG 129-4258

PUMP GP IMPLEMENT &

STEERING PUMP 162-0324

COOLER GP HYDRAULIC OIL 169-3806

MANIFOLD BLADE TILT AND ANGLE CYL RELILEFS 212-3726

FILTER GP CASE DRAIN RETURN:

(ELEMENT 4T-6788) 9T-8999

RESOLVER VALVE 238-4986

VALVE GP SOLENOID NOTE C 206-4795

MANIFOLD 222-0417

COVER VALVE STACK 169-9119

VAVLE GP CONTROL ANGLE 208-1492

VALVE GP CONTROL RIPPER 162-8042

VALVE GP CONTROL TILT NOTE A

162-8041 NOTE D 216-8609

VALVE GP CONTROL LIFT 162-8040

VALVE GP CONTROL STEERING 107-1191

MANIFOLD GP INLET MANIFOLD WITH RELIEF 164-8913

CYLINDER GP RIPPER LIFT 9T-2716

WINCH AR 232-6203

VALVE GP MANIFOLD PRESSURE REDUCING AND CHECK VALVES 162-0162

ACCUMULATOR PILOT CIRCUIT 200-0750

VALVE GP SHUT-OFF 130-4531

VALVE GP RIPPER PILOT 167-1177

VALVE GP WINCH PILOT CONTROL 160-0766

WINCH CONTROL

WINCH CONTROL RIPPER CONTROL RIPPER CONTROL

WINCH ARRANGEMENT

WINCH ARRANGEMENT RIPPER ARRANGEMENT RIPPER ARRANGEMENT

RESOLVER VALVE 233-6942

SENSOR GP PRESSURE 224-4535

VALVE GP DOZER PILOT NOTE I 200-0189 NOTE J 240-9654 NOTE K 206-7333 NOTE L 240-9655

CYLINDER GP ANGLE

203-0820

VALVE GP NOTE A, E UNIT TEST 4 162-8036 NOTE A, F UNIT TEST 3 162-8034 NOTE A, G UNIT TEST 4 232-5921 NOTE D, H UNIT TEST 5 206-7334

VALVE GP CONTROL WINCH 232-4854

TANK GP FILTER 197-0959

VALVE GP BREATHER 3G-4783

VALVE GP COOLER BYPASS 119-9620

MOTOR GP STEERING MOTOR 159-7156

VALVE GP COUNTER BALANCE VALVE - STEERING 9T-4789

ELEMENT IMP RETURN 4T-0522

CYLINDER GP DUAL TILT NOTE A 9T-6095

VALVE GP COUNTERBALANCE LIFT CIRCUIT NOTE B 239-0681

VALVE GP TILT 166-2582

VALVE GP QUICK DROP 113-5429

WINCH CONTROL WINCH CONTROL

P T

PAT

P T

PAT

P AT

POWER ANGLE TILT (PAT)

POWER ANGLE TILT P

T

PAT

POWER ANGLE TILT (PAT)

WINCH ARRANGEMENT

RIPPER ARRANGEMENT

DUAL TILT OPTION

SINGLE TILT OPTION SINGLE TILT OPTION DUAL TILT OPTION

RIPPER COMPONENT

WINCH COMPONENT WINCH COMPONENT

RAISE LOWER

PAY OUT

HAUL IN

CP ACC

3 T S 4

FREE SPOOL

T S

1 2 3 T S 4

ELEC DET

HAUL IN

PAY OUT

PILOT SUPPLY

PILOT DRAIN

RAISE

LOWER

TILT RIGHT

TILT LEFT

RAISE TILT RETURN

RAISE

LOWER

TILT LEFT

TILT RIGHT

TILT LEFT TILT RIGHT

HOUSING DRAIN

BYPASS AIR RELIEF

PUMP FLUSHING CIRCUIT MOTOR FLUSHING CIRCUIT

AIR VENT

SIGNAL TO PUMP

STEERING INLET MANIFOLD

DOZER LIFT

DOZER TILT

PUMP DISCHARGE

FLOAT PILOT BOOST

PRESSURE LIMITER

SUCTION

STEER RIGHT

STEER LEFT

PRESSURE LIMITER

BLADE LIFT

B A

T S

1 2 3 T S 4

ELEC DET

RIPPER CONTROL

PAY OUT

HAUL IN

DOZER ANGLE

END COVER

ANGLE LEFT ANGLE RIGHT

BLADE ANGLE

TOP

JUNCTION PLATE

LEFT

RIGHT

LEFT SIDE

OF TRACTOR

ECM

JOYSTICK THUMB SWITCH

RAISE LOWER

FLOAT PILOT BOOST

RAISE

LOWER FLOAT PILOT BOOST

RAISE LOWER

PUMP DISCHARGE

G X

SEE LOC B-5

SEE LOC F-10

SEE LOC F-7

SEE LOC F-10

SEE LOC F-7

TILT RIGHT

TILT LEFT

RAISE

LOWER

TILT RIGHT

TILT LEFT

TILT RIGHT

TILT LEFT

RAISE

LOWER

TILT RIGHT TILT LEFT

STEER RIGHT

STEER LEFT

T

B P

L U

P

IMP

CYL

LS

X LS

Locations: C-12, E-9, H-6, I-12

Locations: D-7, D-9, D-11, E-2

Locations: C-5, E-8, E-10, F-8, F-10, I-3

PILOT SUPPLY

PILOT DRAIN

PILOT SUPPLY

PILOT DRAIN

VALVE GP 234-5126

Single / Dual Tilt Option

Location: F-1

Trang 10

Pilot Control and Accugrade Ready (HE)

RENR7956-01 June 2006

D6R Series III Track-Type Tractor Hydraulic System

GJB1-UP WCB1-UP HDC1-UP RFC1-UP TBC1-UP JEK1-UP HCD1-UP HKE1-UP WRG1-UP MTJ1-UP

Printed in U.S.A.

DMK1-UP LGP1-UP JDL1-UP DLM1-UP LFM1-UP EXL1-UP DPS1-UP EXW1-UP GMT1-UP MRT1-UP

(FIXED)

SPRING (ADJUSTABLE)

(VARIABLE)

LINE RESTRICTION

MEASUREMENT

ROTATING SHAFTS

MANUAL CONTROL SYMBOLS

HYDRAULIC MOTORS

FIXED DISPLACEMENT

BIDIRECTIONAL

HYDRAULIC PUMPS

FLUID STORAGE RESERVOIRS

CROSSING AND JOINING LINES

BASIC COMPONENT SYMBOLS

FLUID POWER SYMBOLS

FIXED DISPLACEMENT

BIDIRECTIONAL

VALVES

PILOT CONTROL SYMBOLS

RELEASED PRESSURE

SUPPLY PRESSURE

ACCUMULATORS

SOLENOID

or MANUAL SOLENOIDand PILOT

COMBINATION CONTROLS

HYDRAULIC AND PNEUMATIC CYLINDERS

BASIC SYMBOL

SPRING LOADED

CHECK VALVES

TWO POSITION

INFINITE POSITIONING

THREE POSITION

CROSS FLOW PARALLEL FLOW INTERNAL PASSAGEWAYS

NORMAL POSITION

A B

P T

A B

CONTROL VALVES

ATTACHMENT

MANUAL SHUTOFF

SHUTTLE PILOT

CONTROLLED

Hydraulic Symbols (Electrical)

Electrical Symbols Table

325-AG135 PK-14

325-PK-14

Wire Gauge

Wire Color

Wire Number Identification Codes

Current Standard

Previous Standard

Electrical Schematic Example Hydraulic Schematic Example

325-PK

Identification

Wire

(EXAMPLE VALVE)

Current Standard

Transducer (Fluid) Transducer (Gas / Air)

G

Generator

M

Electric Motor

Temperature Switch

T

Pressure Symbol Temperature Symbol Symbol Level

Flow Symbol

Electrical Symbols (Electrical)

Item

Part Number

Schematic Location

Valve Gp - Steering, Dozer Lift/Tilte 224-4936 E-5 Valve Gp - Steering, Dozer Lift/Tilte (Ripper) 224-2937 E-5 Valve Gp - Steering, Dozer Lift/Tilte (Winch) 239-6076 E-5

5 Manifold Gp - Inlet Manifold with Relief 235-0401 E-5

15 Valve Gp - Pressure Reducing Manifold and

19 Element - Implement and Case Drain Return 1R-0777 A-3

28 Valve Gp - Counter Balance-Lift Circuit 239-0681 F-2

4

9

21

Component Locations

Tap Locations Pressure, Sampling, and Sensor

Tap

Number Description

Schematic Location

1

B C

D

The pressure reducing manifold (15) is located inside the forward compartment on the right fender and is situated outboard from the power train oil filter Service points identi-fied above are:

(HA) Implement pump discharge pressure test port.

(14) Accumulator.

(CP) Pilot supply pressure test port

(S•O•S) Hydraulic oil sampling port.

(CPG) Accumulator pressure test port.

The implement hydraulic pump (1) is mounted to the rear of the flywheel housing, at the upper left corner High pressure supply oil to the implement valve stack is directed through a hose that connects to the pump discharge port (B) High pressure supply oil to the pressure reduc-ing manifold is directed through a hose that connects to the lower fittreduc-ing (C) from the pump discharge port.

A pump discharge pressure sensor (D) is installed on the opposite side of the "tee" fitting from the pressure reducing manifold supply line This pressure sensor is only present on machines that are equipped with AccuGrade It is a necessary component for the calibration of the four proportional solenoids on the EH pilot manifold that are used for blade control Machines that are not equipped with AccuGrade will have an "L" fitting at this location, connecting the pump-supply line to the pressure reducing manifold.

Other components identified above are:

E pump pressure and flow compensator valve

F fitting for the load sensing signal line (from the signal resolver network)

G fitting for the case drain line This implement pump is identical to the implement pump used in the D6R Series II machines with differential steering.

The steering and implement control valve stack is mounted to a bracket inside the right fender, below the right console in the operator compartment.

The implement valve stack consists of the inlet manifold (5), the steering valve (6), the blade lift control valve (7), the blade tilt control valve (8), the optional blade angle control valve (A), the ripper (or winch) control valve (9), and the end cover (10), EH pilot manifold for tilt and lift The blade angle control valve and the ripper/winch control valve may not

be present, depending on how the

7 8 A 9

The AccuGrade Boost solenoid valve directs pilot supply oil to an external resolver The blade lower solenoid controlled pilot valve also directs pilot supply oil to this same external resolver, in addition to the pilot supply oil that is directed to the LOWER end of the blade lift control valve

Pilot supply oil is directed (through the resolver) to the Float Pilot Boost line when either solenoid

is ENERGIZED The Float Pilot Boost signal line enters the signal resolver network through the end cover of the valve stack In either situation, the pump's flow compensator valve senses the pilot supply oil as a signal and the implement pump will up stroketo maintain margin pressure above LOW PRESSURE STANDBY pressure (If the steering valve or another implement valve sends a higher signal into the resolver network, the highest pressure is sensed by the compensa-tor valve.)This EH pilot manifold is only present on ARO machines.

15

14

Illustration (A) shows the EH pilot manifold when the operator has moved the thumb rocker switch

to the BLADE ANGLE RIGHT position The Machine ECM receives the signal from the thumb rocker switch and sends a corresponding signal to the ANGLE RIGHT solenoid controlled pilot valve and the solenoid is ENERGIZED Pilot supply oil is then directed to the appropriate end of the blade angle control valve.

EH PILOT MANIFOLDS

PRESSURE MANIFOLD

MACHINE COMPONENT LOCATIONS

IMPLEMENT PUMP

STEERING and IMPLEMENT

CONTROL VALVE

The EH pilot manifold (28) for blade lift and tilt functions is mounted to the outboard side of the valve stack bracket, if the machine is equipped with AccuGrade.

Components of the AccuGrade EH pilot manifold identified above are the blade raise solenoid, the blade tilt right solenoid, the AccuGrade Boost solenoid, the blade tilt left solenoid, and the blade lower solenoid.

The EH pilot manifold receives pilot supply oil from the pressure reducing manifold The EH pilot manifold contains four (proportional) solenoid controlled pilot valves that receive PWM signals from the Machine ECM for operation of the blade lift and the blade tilt functions When ENERGIZED, the solenoid controlled pilot valve directs pilot supply oil to the end of the corresponding implement control valve, in direct proportion to the movement of the dozer control

lever (or as automatically commanded by the AccuGrade system) The EH pilot manifold also contains the AccuGrade Boost solenoid valve, which uses an ON/OFF solenoid.The AccuGrade Boost strategy was discussed earlier in the Implement Hydraulics section ofthis presentation.

D6R SERIES III BLADE ANGLE EH PILOT MANIFOLD

D6R SERIES III BLADE TILT AND LIFT EH PILOT MANIFOLD

29

Pilot supply

Angle Right Angle Left

To Tank

From Pressure Reducing Manifold (To Blade Angle Control Valve)

Pilot supply

Tilt Right Blade Raise

Accugrade Boost

To Tank (Drain)

Tilt Left Blade Lower

To Blade Tilt Control Valve (Tilt Left)

To Blade Lift Control Valve (Blade Lower/Float)

To Float Pilot Boost Line

To Blade Tilt Control Valve (Tilt Right)

Accugrade Boost Line

To Blade Tilt Control Valve (Tilt Left)

Service points on the back of the hydraulic oil tank that are identified above are:

A Steering implement pump suction port.

B Valve stack end cover drain port.

C Hydraulic oil temperature sensor.

D Pilot valve drain port.

E Case drain return port (to internal filter).

F Fitting for hose to hydraulic oil cooler (via bypass valve).

G Implement return oil port (to internal filter).

HYDRAULIC OIL TANK

A

F

G E

D B

C

24

16

2 5 6 7

8 9 10

3

20

17

21

22 23 1

2 5 6 7

8 9 10

18 16

26

22

21 24

11

13

HA CP

15

Angle Right Angle Left

(A)

Angle Right

Angle Left

(Drain)

EH PILOT MANIFOLD

EH PILOT MANIFOLD IMPLEMENT VALVE STACK

The machine will have an EH pilot manifold installed for blade angle control (29) if the machine

is equipped with a VPAT blade The EH pilot manifold for blade angle control is located in the forward compartment on the right fender, directly below the pressure reducing manifold The ANGLE RIGHT solenoid controlled pilot valve and the ANGLE LEFT solenoid controlled pilot valve are identified in the picture below.

28

29

1

25 28

HA CP

CPG SOS

HA CP

CPG SOS

HB MA

C

HB

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