Material Schematic Hydraulic System Track Type Tractors D8r Dozer Caterpillar 1w3l5i

FLUID POWER SYMBOLS

Component Locations (Volume 1) Item Number

Description

Part Number

Schematic Location

1

Pump Gp - Steering / Cooling

139-4151

F-4

2

Motor Gp - Steering

159-7162

F-7

3

Pump Gp - Implement

9T-8346

D-3

4

Valve Gp - Dozer & Ripper Imp Dozer Only

160-5951 160-5952

D-5

5

Manifold Gp - Inlet & Relief

163-0829

D-5

6

Valve Gp - Dozer Lift Section

160-5953

D-5

7

Valve Gp - Tilt Section

160-5954

C-5

8

Valve Gp - Ripper Lift & Tilt Sections

169-3323

B-5

10

Cover - End

169-9119

A-5

11

Valve Gp - Dozer Pilot Control

200-0189

A-3

12

Valve Gp - Ripper Pilot Control

184-5321

A-8

14

Valve Gp - Implement Lockout

130-4531

B-8

15

Accumulator - Pilot Circuit

200-0750

C-8

16

Valve Gp - Pressure Reg Manifold

162-0162

C-8

17

Valve Gp - Cooler By

126-0747

E-3

18

Cooler - Hydraulic Oil

153-1271

D-2

19

Filter Gp - Steering Charge

177-6979

F-3

20

Valve Gp - Steering Pilot

9T-8693

E-3

21

Valve Gp - Pressure Control

163-0057

E-7

22

Valve Gp - Quick Drop

109-6942

D-2

23

Cylinder Gp - Lift

6E-1102

D-1

24

Cylinder Gp - Dual Tilt

6E-0397

C-1

25

Cylinder Gp - Single Tilt

6E-1175

B-1

26

Cylinder Gp - Ripper Tip (LH)

155-3652

D-8

27

Cylinder Gp - Ripper Tip (RH)

165-0102

D-8

28

Cylinder Gp - Ripper Lift

155-3653

D-7

29

Cylinder Gp - Pin Puller

6E-3113

D-7

30

Tank Gp - Hydraulic Oil

164-3700

C-3

32

Valve Gp - Dual Tilt

106-9648

C-1

20

Description Implement Pump Signal Pressure

D-4

Charge Pump Discharge Pressure

E-7

G

Case Return

E-7

H

Filter Outlet Pressure

F-3

HA

Implement Pump Discharge At Pump

E-7

HC

Left Steering Loop

F-7

HD

Right Steering Loop

F-7

Hydraulic Oil Cooler Inlet Pressure

D-2

K

Filter Inlet Pressure (SOS)

F-3

X1

Right Steer Actuator Signal Pressure

F-4

X2

Left Steer Actuator Signal Pressure

F-4

Y1

Left Steer Pilot Signal

E-3

Y2

Right Steer Pilot Signal

E-3



Pilot Oil Supply Pressure Non Tap Location Points Of Reference

B-8

Implement Pump Discharge Pressure

D-4

Charge Pump Relief Pressure

E-5

Right Steer Loop At Pump

F-5

E MA MB

Left Steer Loop At Pump

E-5

PS

Steer Pump Control Supply

E-5

BASIC COMPONENT SYMBOLS

PUMP or MOTOR

21

32

CONTROL VALVES

SPRING

FLUID CONDITIONER

LINE RESTRICTION (FIXED)

RESTRICTION

PRESSURE COMPENSATION

LINE RESTRICTION (VARIABLE)

SPRING (ADJUSTABLE)

VARIABILITY

2

PUMP: VARIABLE and PRESSURE COMPENSATED

2-SECTION PUMP

HYDRAULIC PNEUMATIC ENERGY TRIANGLES

ATTACHMENT

LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED

VALVES VALVE ENVELOPES

18

VALVE PORTS

TWO POSITION

ONE POSITION

TWO-WAY

THREE POSITION

22

12 14

CHECK VALVES

AB

AB

P T SHIFTED POSITION

P T NORMAL POSITION

15 16

INFINITE POSITION

PRESSURE

30

PILOT CONTROLLED

ROTATING SHAFTS

FLOW

TEMPERATURE

3

UNIDIRECTIONAL

BIDIRECTIONAL

FLUID STORAGE RESERVOIRS

D8R Track-Type Tractor Hydraulic System

7 8 10 19 30

12 14

SHUTTLE

SPRING LOADED

BASIC SYMBOL

MEASUREMENT

4 5 6

FOUR-WAY

THREE-WAY

CONTROL VALVES

Schematic Location

F

A

17

11 20

15 16

HB

J

1

MAIN AUX.

Tap Locations Pressure, Sampling, and Sensor Tap Number

19

RENR3680-01 August 2005

VENTED

RETURN BELOW FLUID LEVEL

COMBINATION CONTROLS

AKA1-UP 6YZ1-UP

22

RETURN ABOVE FLUID LEVEL

PRESSURIZED

SOLENOID or MANUAL

SOLENOID

SERVO

SOLENOID and PILOT or MANUAL

SOLENOID and PILOT

DETENT

THERMAL

MANUAL CONTROL SYMBOLS

4 5 6

MANUAL SHUTOFF

PUSH-PULL LEVER

GENERAL MANUAL

PUSH BUTTON

PEDAL

SPRING

PILOT CONTROL SYMBOLS

7 8 10

RELEASED PRESSURE

32

21

EXTERNAL RETURN

18

REMOTE SUPPLY PRESSURE

INTERNAL RETURN

SIMPLIFIED

CROSSING AND ING LINES

ACCUMULATORS

SPRING LOADED

GAS CHARGED

LINES CROSSING

HYDRAULIC PUMPS FIXED DISPLACEMENT

2

1 3

17

HYDRAULIC AND PNEUMATIC CYLINDERS

SINGLE ACTING

LINES ING

FIXED DISPLACEMENT

VARIABLE DISPLACEMENT NON-COMPENSATED

UNIDIRECTIONAL

UNIDIRECTIONAL

BIDIRECTIONAL

BIDIRECTIONAL

DOUBLE ACTING

INTERNAL AGEWAYS

HYDRAULIC MOTORS

VARIABLE DISPLACEMENT NON-COMPENSATED

INTERNAL SUPPLY PRESSURE

COMPLETE

INFINITE POSITIONING

PARALLEL FLOW

FLOW IN ONE DIRECTION

TWO POSITION

THREE POSITION

CROSS FLOW

FLOW ALLOWED IN EITHER DIRECTION

Volume 1 - with Ripper Printed in U.S.A.

© 2005 Caterpillar All Rights Reserved

26 28

27

2

G

X1

HC

HB

Transducer (Fluid)

RIPPER

Pressure Switch (Adjustable)

M

Generator

Electric Motor

Electrical Wire

Temperature Switch

Electrical Symbols (Electrical)

HA

H

21

K

24 25

FW D

Transducer (Gas / Air)

Pressure Switch

23 23

Hydraulic Symbols (Electrical)

T

Pressure Symbol

F

Temperature Symbol

19

G

Wire Number Identification Codes Electrical Schematic Example

Hydraulic Schematic Example Current Standard

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

Wire Color

325-AG135 PK-14

IMPLEMENT SYSTEM

Y1

Wire Circuit Number Identification

18 Y2

Flow Symbol

Level Symbol

325-PK Circuit Identification Number

Wire Color

Wire Gauge

Previous Standard

24

21

J

Wire Color

Wire

325-PK-14 B

DOZER BLADE

STEERING SYSTEM

Circuit Number Identification

A

Wire Gauge (EXAMPLE VALVE)

16 Page

HD

3

RENR3680-01 VOL 1

1

X2

28

29

Electrical Symbols Table

8

7

6

HD

2

4

5

1

MA

2

3

X2

19

K

X1

1

H

LINES GROUP COLOR DESCRIPTIONS STEER PUMP OUTPUT IMPLEMENT PUMP OUTPUT TILT CYLINDER CONTROL CIRCUIT IMPLEMENT PUMP SIGNAL RIPPER TIP CYLINDER CONTROL CIRCUIT SUPPLY LINE DRAIN / RETURN LINE

F

STEERING LOOP CIRCUIT WINCH FREE SPOOL CONTROL CIRCUIT LIFT CYLINDER CONTROL CIRCUIT

F

29

RIPPER LIFT CYLINDER CONTROL CIRCUIT WINCH CONTROL CIRCUIT

20

CONTROL PRESSURE SUPPLIED BY TRANSMISSION

STEERING PILOT CONTROL CIRCUIT

F Y1 PS

HC

MB

E

Y2

G

17

E

E

21

HA

4

28

HB

RIPER TIP

MARGIN

5

26

3

CUT-OFF

J

18 D

D

27

B

A

23 6

RIPPER LIFT

28

22

A

LIFT

16

7

32 24

C

30 TILT

15

DUAL TILT OPTION

8

25

SINGLE TILT OPTION

16 Page, Color 2

RENR3680-01 VOL 1

PILOT SUPPLY

C

14

B

LOWER

RAISE LOWER

RAISE

RIPER LIFT

Pressure Line

TILT LEFT



Pilot / Load Sensing Pressure

TILT RIGHT

8 RAISE 1

RAISE

2

3

4

Drain / Return Lines Component Group

TILT 2

1

TIP

B

LINE PATTERNS

3

4

11

Attachment Air Line

ELEC. DET.

CALLOUTS

TIP/IN

12

TIP/OUT 1

T

S

2

3

T

S

4

1

RIPER TIP

T

S

2

3

T

S

YY

Taps (Pressure, Sampling,Sensor) by letter

52

Components by number

4

10

A

A FLOAT PILOT BOOST SIGNAL

THIS SCHEMATIC IS FOR THE D8R TRACK-TYPE TRACTOR PILOT SUPPLY

PILOT DRAIN

Part #: 163-5975 CHG 06 (RIPPER VERSION) VOLUME 1 OF 2 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.

8

7

6

5

4

3

2

1

20

Component Locations (Volume 2) Item Number

Description

Part Number

Schematic Location F-4

1

Pump Gp - Steering / Cooling

139-4151

2

Motor Gp - Steering

159-7162

F-6

3

Pump Gp - Implement

9T-8346

D-3

4

Valve Gp - Dozer & Winch Imp Dozer Only

160-8612 160-5952

D-6

5

Manifold Gp - Inlet & Relief

163-0829

D-6

6

Valve Gp - Dozer Lift Section

160-5953

D-6

7

Valve Gp - Tilt Section

160-5954

C-6 B-6

9

Valve Gp - Winch Section

124-2906

10

Cover - End

169-9119

A-6

11

Valve Gp - Dozer Pilot Control

200-0189

A-3

13

Valve Gp - Winch Pilot Control

160-0766

A-8

14

Valve Gp - Implement Lockout

130-4531

B-8

15

Accumulator - Pilot Circuit

200-0750

B-8

16

Valve Gp - Pressure Reg Manifold

162-0162

C-8

17

Valve Gp - Cooler By

126-0747

E-3

18

Cooler - Hydraulic Oil

153-1271

D-2

19

Filter Gp - Steering Charge

177-6979

F-3

20

Valve Gp - Steering Pilot

9T-8693

F-3

21

Valve Gp - Pressure Control

163-0057

E-6

22

Valve Gp - Quick Drop

109-6942

D-2

23

Cylinder Gp - Lift

6E-1102

D-1

24

Cylinder Gp - Dual Tilt

6E-0397

C-1

25

Cylinder Gp - Single Tilt

6E-1175

B-1

30

Tank Gp - Hydraulic Oil

164-3700

C-3

31

Winch Unit

160-5555

E-8

32

Valve Gp - Dual Tilt

106-9648

C-1

19

1

FLUID POWER SYMBOLS

17

RENR3680-01 August 2005

MAIN AUX.

21

PUMP or MOTOR

2

Description

Schematic Location

HB

Implement Pump Signal Pressure

D-4

F

Charge Pump Discharge Pressure

E-6

G

Case Return

E-6

Filter Outlet Pressure

F-3

HA

H

Implement Pump Discharge At Pump

E-6

HC

Left Steering Loop

E-6

HD

Right Steering Loop

F-6

Hydraulic Oil Cooler Inlet Pressure

D-2

J K

Filter Inlet Pressure (SOS)

F-3

X1

Right Steer Actuator Signal Pressure

F-4

X2

Left Steer Actuator Signal Pressure

F-4

Y1

Left Steer Pilot Signal

E-3

Y2

Right Steer Pilot Signal

E-3



Pilot Oil Supply Pressure Non Tap Location Points Of Reference

B-8

A

Implement Pump Discharge Pressure

D-4

E

Charge Pump Relief Pressure

E-5

Right Steer Loop At Pump

F-5

MA MB

Left Steer Loop At Pump

E-5

PS

Steer Pump Control Supply

E-5

LINE RESTRICTION (FIXED)

RESTRICTION

PUMP: VARIABLE and PRESSURE COMPENSATED

2-SECTION PUMP

HYDRAULIC PNEUMATIC ENERGY TRIANGLES

VALVE ENVELOPES

VALVE PORTS

TWO POSITION

ONE POSITION

TWO-WAY

THREE POSITION

CHECK VALVES

AB

AB

P T SHIFTED POSITION

P T NORMAL POSITION

15 16

INFINITE POSITION

PRESSURE

PILOT CONTROLLED

ROTATING SHAFTS

FLOW

TEMPERATURE

3

UNIDIRECTIONAL

BIDIRECTIONAL

FLUID STORAGE RESERVOIRS

7 9 10 19 30

D8R Track-Type Tractor Hydraulic System

11 20

VENTED

SOLENOID or MANUAL

SOLENOID

DETENT

THERMAL

GENERAL MANUAL

PUSH BUTTON

PEDAL

SPRING

PILOT CONTROL SYMBOLS

32

RELEASED PRESSURE

EXTERNAL RETURN

18

REMOTE SUPPLY PRESSURE

INTERNAL RETURN

SIMPLIFIED

CROSSING AND ING LINES

ACCUMULATORS

SPRING LOADED

GAS CHARGED

LINES CROSSING

HYDRAULIC PUMPS FIXED DISPLACEMENT

1 3

SERVO

SOLENOID and PILOT or MANUAL

SOLENOID and PILOT

MANUAL SHUTOFF

PUSH-PULL LEVER

21

RETURN BELOW FLUID LEVEL

MANUAL CONTROL SYMBOLS

4 5 6 7 9 10

RETURN ABOVE FLUID LEVEL

PRESSURIZED

COMBINATION CONTROLS

AKA1-UP 6YZ1-UP

22

2

SHUTTLE

SPRING LOADED

BASIC SYMBOL

MEASUREMENT

30

FOUR-WAY

THREE-WAY

CONTROL VALVES

22

4 5 6

ATTACHMENT

LINE RESTRICTION VARIABLE and PRESSURE COMPENSATED

VALVES

18 13 14

PRESSURE COMPENSATION

LINE RESTRICTION (VARIABLE)

SPRING (ADJUSTABLE)

VARIABILITY

15 16 Tap Number

CONTROL VALVES

SPRING

FLUID CONDITIONER

32

13 14 Tap Locations Pressure, Sampling, and Sensor

BASIC COMPONENT SYMBOLS

17

HYDRAULIC AND PNEUMATIC CYLINDERS

SINGLE ACTING

LINES ING

FIXED DISPLACEMENT

VARIABLE DISPLACEMENT NON-COMPENSATED

UNIDIRECTIONAL

UNIDIRECTIONAL

BIDIRECTIONAL

BIDIRECTIONAL

DOUBLE ACTING

INTERNAL AGEWAYS

HYDRAULIC MOTORS

VARIABLE DISPLACEMENT NON-COMPENSATED

INTERNAL SUPPLY PRESSURE

COMPLETE

INFINITE POSITIONING

PARALLEL FLOW

FLOW IN ONE DIRECTION

TWO POSITION

THREE POSITION

CROSS FLOW

FLOW ALLOWED IN EITHER DIRECTION

Volume 2 - with Winch Printed in U.S.A.

© 2005 Caterpillar All Rights Reserved

2

G

X1

HC

HB

Transducer (Fluid)

WINCH

Pressure Switch (Adjustable)

M

Generator

Electric Motor

Electrical Wire

Temperature Switch

Electrical Symbols (Electrical)

24 25

FW D

Transducer (Gas / Air)

Pressure Switch

23 23

Hydraulic Symbols (Electrical)

HA

H

21

K

T

Pressure Symbol

F

Temperature Symbol

19

G

Wire Number Identification Codes Electrical Schematic Example

Hydraulic Schematic Example Current Standard

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

Wire Color

325-AG135 PK-14

IMPLEMENT SYSTEM

Y1

Wire Circuit Number Identification

18 Y2

Flow Symbol

Level Symbol

325-PK Circuit Identification Number

Wire Color

Wire Gauge

Previous Standard

24

21

J

Wire Color

Wire

325-PK-14 B

DOZER BLADE

STEERING SYSTEM

Circuit Number Identification

A

Wire Gauge (EXAMPLE VALVE)

16 Page

HD

3

RENR3680-01 VOL 2

1

X2

31

Electrical Symbols Table

8

7

6

4

5

1

HD

2

MA

2

3

19

K

X1

X2

1

H

31 F

F

20

LINES GROUP COLOR DESCRIPTIONS STEER PUMP OUTPUT IMPLEMENT PUMP OUTPUT TILT CYLINDER CONTROL CIRCUIT

G X

IMPLEMENT PUMP SIGNAL RIPPER TIP CYLINDER CONTROL CIRCUIT

HC

STEERING LOOP CIRCUIT WINCH FREE SPOOL CONTROL CIRCUIT LIFT CYLINDER CONTROL CIRCUIT RIPPER LIFT CYLINDER CONTROL CIRCUIT WINCH CONTROL CIRCUIT

G

E

SUPPLY LINE DRAIN / RETURN LINE

Y1

F

MB

E

PS

STEERING PILOT CONTROL CIRCUIT

Y2

17

21

E

HA

HB

4

MARGIN

3 J

CUT-OFF

D

18 D

5

B

A

23 22 6

A

LIFT

C

C

30

32 24

16

PILOT SUPPLY

DUAL TILT OPTION

TILT

16 Page, Color 2

RENR3680-01 VOL 2

7

9

15

25

SINGLE TILT OPTION

B

B

LOWER RAISE

14 WINCH



13

FREE SPOOL 1

TILT LEFT TILT RIGHT

10

HAUL IN/PAY OUT 2

3

LINE PATTERNS RAISE

4

TILT 2

1

3

Pressure Line

4

Pilot / Load Sensing Pressure ELEC. DET.

ELEC. DET.

FLOAT PILOT BOOST SIGNAL

Drain / Return Lines

11

Component Group Attachment Air Line

CALLOUTS

PILOT SUPPLY

A 1

T

S

2

3

T

S

4

1

PILOT DRAIN

T

S

3

2

T

S

YY

Taps (Pressure, Sampling,Sensor) by letter

52

Components by number

4

THIS SCHEMATIC IS FOR THE D8R TRACK-TYPE TRACTOR Part #: 163-5975 CHG 06 (WINCH VERSION) VOLUME 2 OF 2 Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.

8

7

6

5

4

3

2

1

A