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8J6730 SLIPPER PUMP GROUP--Part 2 of 2 Part of Slipper and Gear Piston Pump shown on Page 172 120G MOTOR GRADER


HYDRAULIC SYSTEM
PUMP GP
VALVE GP
PUMP GP
VALVE & LINKAGE GP

MOTOR GRADER 120G MOTOR GRADER 82V
 120G MOTOR GRADER 82V00001-00667 (MACHINE) UEG0878S 120G 82V   (1974)

HYDRAULIC SYSTEM

PUMP GP
PUMP AND MOUNTING GROUP
9D-0950 PUMP AND MOUNTING GROUP
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP GP-SLIPPER & GEAR PISTON
8J-6731 PUMP GP-SLIPPER & GEAR PISTON
HEAD GP-PUMP CONTROL
8J-6729 HEAD GP-PUMP CONTROL
SERVO VALVE GROUP
8J-6316 SERVO VALVE GROUP
 

#UEG0878S0260
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 2 of 2
Part of Slipper and Gear Piston Pump shown on Page 172
c203388 UEG0878S
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6347 [1] GASKET  
2. 8J-6321 [4] STOP  
3. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
4. 6F-4855 [2] SEAL  
5. 8J-1899 [3] SHIM .044 in. (1.12mm)thick  
  8J-1898 [6] WASHER .010 in. (.26 mm)thick  
6. 8J-4377 [1] BOLT  
7. 8J-1810 [1] BOLT  
8. 1H-5728 [2] SEAL  
9. 0L-1351 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
10. 8J-6346 [1] PLATE  
11. 8J-6229 [2] COVER  
12. 8J-6302 [6] SHIM (.005 in. thick)  
  8J-6301 [3] SHIM (.002 in. thick)  
13. 8J-6348 [1] BARREL ASSEM.  
14. 8J-2022 R [9] PISTON ASSEM.  
15. 9J-2516 [1] PLATE  
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0878S0261
 

8J-6731: PUMP GP-SLIPPER & GEAR PISTON

8J6731 SLIPPER AND GEAR PISTON PUMP GROUP
Part of 9D950 Pump and Mounting Group shown on Page 169
8J6730 Slipper Pump parts are shown on Pages 170 and 171
c207343 UEG0878S
8J6731 PUMP GP-SLIPPER & GEAR PISTON Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6730 Y [1] PUMP GROUP  
    (Separate Illustration)
2. 8J-5834 [1] COUPLING  
3. 6D-1004 [1] GASKET  
4. 8J-5846 [1] PUMP GROUP  
    (Includes)
  2S-5818 [2] BOLT (12 point head)  
5. 1D-4539 [4] BOLT  
6. 1D-4541 [2] BOLT  
7. 5P-2546 [2] BOLT  
  3B-4507 [2] LOCKWASHER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  032-9717 [1] KIT (gear pump seal)  
    (Includes such parts as Diaphragm, Ball, Seals, Spring and Gasket)
  Y   SEPARATE ILLUSTRATION
 

#UEG0878S0262
 

8J-6729: HEAD GP-PUMP CONTROL

8J6729 PUMP CONTROL HEAD GROUP
Part of 8J6730 Slipper Pump Group shown on Page 170
8J6103 and 8J6316 Valve parts are shown on Page 174
c203389 UEG0878S
8J6729 HEAD GP-PUMP CONTROL Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1B-7182 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
2. 8J-6726 [1] COVER  
3. 2K-8198 [1] SEAL  
4. 8J-6727 [1] HOUSING  
5. 2D-0598 [2] SEAL  
6. 8J-0445 [1] PLUG  
7. 8F-3469 [1] SEAL  
8. 8J-6066 [1] COVER  
9. 8J-5472 [7] RING  
10. 8J-8725 [7] SEAL  
11. 8J-0415 [1] HEAD  
12. 9S-8001 [2] PLUG  
  4J-7533 [2] SEAL  
13. 8J-6103 Y [1] VALVE GROUP  
    (Separate Illustration)
14. 8J-6314 [1] CUP  
15. 8J-6316 Y [1] VALVE GROUP  
    (Separate Illustration)
16. 9S-8002 [3] PLUG  
  3J-7354 [3] SEAL  
17. 8J-2028 [1] SPACER  
18. 8J-6305 [1] SPRING  
19. 8J-6728 [1] SPRING  
20. 8J-6303 [1] SEAT  
21. 6F-8205 [6] SPACER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0878S0263
 

8J-6103: VALVE GP

8J6103 PRESSURE REDUCING VALVE GROUP
Part of 8J6729 Pump Control Head Group shown on Page 173
c200162 UEG0878S
8J6103 VALVE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8006 [1] PLUG  
2. 2M-9780 [1] SEAL  
3. 9S-4982 [1] SPRING  
4. 8J-6076 [1] PISTON  
5. 8J-2030 [1] PISTON  
6. 8J-6075 [1] CARTRIDGE  
7. 8J-6100 [1] PISTON  
 

#UEG0878S0264
 

8J-6316: SERVO VALVE GROUP

8J6316 SERVO VALVE GROUP
Part of 8J6729 Pump Control Head Group shown on Page 173
c154252 UEG0878S
8J6316 SERVO VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-4574 [1] PISTON  
2. 8J-2032 [1] PISTON  
3. 2L-6726 [1] RING  
4. 8J-2040 [1] INSERT  
5. 5B-9324 [1] SETSCREW  
6. 8J-8345 [1] CARTRIDGE  
7. 8J-8374 C [1] VALVE GROUP  
    (Includes)
8. 8J-2034 [1] STOP  
9. 3H-1118 [1] PIN  
10. 8J-2027 [1] SPACER  
11. 3D-8317 [1] RING  
  C   INDICATES CHANGE
 

#UEG0878S0265
 

9D-2880: VALVE & LINKAGE GP

9D2880 SCARIFIER LINKAGE AND VALVE GROUP
8J9289 Unit Test Valve parts are shown on Page 186
AN ATTACHMENT
c200551 UEG0878S
9D2880 VALVE & LINKAGE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8D-5635 [1] LEVER  
  8D-5640 [1] BEARING  
2. 2B-2695 [1] BOLT  
  3F-9556 [1] LOCKWASHER  
3. 7H-3641 [1] END  
4. 8D-5629 [1] ROD  
5. 1B-4202 [2] NUT  
6. 3D-5878 [1] END  
7. 4J-5325 [1] PIN  
  3B-4607 [1] COTTER PIN  
8. 8J-9289 Y [1] VALVE GROUP  
    (Separate Illustration)
9. 8D-5642 [1] SHAFT  
10. 8D-5641 [1] BEARING  
11. 6L-1962 [1] NUT  
12. 8D-9502 [1] KNOB  
  Y   SEPARATE ILLUSTRATION
 

#UEG0878S0266
 

9D-5250: VALVE & LINKAGE GP

9D5250 POWER BLADE LINKAGE AND VALVE GROUP
9J1226 Unit Test Valve parts are shown on Page 186
AN ATTACHMENT
c202427 UEG0878S
9D5250 VALVE & LINKAGE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6L-1962 [1] NUT  
2. 8D-8848 [1] KNOB  
3. 8D-5633 [1] LEVER  
4. 8D-5640 [1] BEARING  
5. 9J-1226 Y [1] VALVE GROUP  
    (Separate Illustration)
6. 4J-5325 [1] PIN  
  3B-4607 [1] COTTER PIN  
7. 3D-5878 [1] END  
8. 1B-4202 [2] NUT  
9. 8D-5629 [1] ROD  
10. 7H-3641 [1] END  
11. 2B-2695 [1] BOLT  
  3F-9556 [1] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0878S0267
 

9D-1580: VALVE & LINKAGE GP

LINKAGE AND VALVE (9D1580 N/S)--Part 1 of 2
c202237 UEG0878S
9D1580 VALVE & LINKAGE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8D-5636 [4] SHIM (.010 in. thick)  
  8D-5637 [4] SHIM (.030 in. thick)  
2. 8D-5639 [2] RETAINER  
3. 0S-1591 [2] BOLT  
4. 8D-5634 [2] LEVER  
5. 6L-1962 [6] NUT  
6. 8D-8849 [2] KNOB  
7. 8D-5633 [2] LEVER  
8. 8D-8852 [2] SPACER  
9. 4B-4278 [2] WASHER  
10. 8D-8851 [1] KNOB  
11. 8D-5632 [2] LEVER  
13. 8D-6157 [1] SHAFT  
14. 8D-5631 [1] LEVER  
15. 8D-8846 [1] KNOB  
16. 8D-8844 [1] KNOB  
17. 8D-8847 [1] KNOB  
18. 2B-2695 [6] BOLT  
  3F-9556 [6] LOCKWASHER  
19. 7H-3641 [6] END  
20. 8D-5629 [6] ROD  
  1B-4202 [12] NUT  
21. 3D-5878 [6] END  
  4J-5325 [6] PIN  
  3B-4607 [6] COTTER PIN  
22. 8D-5640 [8] BEARING  
23. 4B-4283 [2] WASHER  
24. 8D-5641 [10] BEARING  
 

#UEG0878S0268
 

9D-1580: VALVE & LINKAGE GP

LINKAGE AND VALVE (9D1580 N/S)--Part 2 of 2
Unit Test Valve parts are shown on Page 185
c202238 UEG0878S
9D1580 VALVE & LINKAGE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1595 [2] BOLT  
2. 3B-4508 [2] LOCKWASHER  
3. 9S-1366 [2] BOLT  
  1K-6872 [2] NUT  
  4B-4280 [2] WASHER  
4. 8F-6437 [4] WASHER  
5. 8D-3786 [4] MOUNTING  
6. 9H-4257 [2] WASHER  
7. 8D-7344 [1] BRACKET  
8. Y [1] VALVE GROUP  
    (Separate Illustration)
9. 9D-2959 [1] BRACKET ASSEM.  
    (Includes)
10. 1J-4798 [3] WASHER  
11. 9D-2958 [1] BRACKET ASSEM.  
    (Includes)
12. 1J-4798 [3] WASHER  
13. Y [1] VALVE GROUP  
    (Separate Illustration)
14. 8D-7291 [1] BRACKET  
15. 1A-1460 [4] BOLT  
16. 0S-1588 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0878S0269
 

9D-6920: VALVE & LINKAGE GP

9D6920 POWER BLADE AND SCARIFIER LINKAGE AND VALVE GROUP
8J9289 and 9J1226 Unit Test Valve parts are shown on Page 186
AN ATTACHMENT
c202429 UEG0878S
9D6920 VALVE & LINKAGE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8D-5633 [1] LEVER  
2. 8D-8848 [1] KNOB  
3. 8D-5642 [1] SHAFT  
4. 8D-9502 [1] KNOB  
5. 6L-1962 [2] NUT  
6. 8D-5635 [1] LEVER  
7. 2B-2695 [2] BOLT  
  3F-9556 [2] LOCKWASHER  
8. 7H-3641 [2] END  
9. 8D-5640 [2] BEARING  
10. 8D-5641 [1] BEARING  
11. 8D-5629 [2] ROD  
  1B-4202 [4] NUT  
12. 3D-5878 [2] END  
  4J-5325 [2] PIN  
  3B-4607 [2] COTTER PIN  
13. 8J-9289 Y [1] VALVE GROUP  
14. 9J-1226 Y [1] VALVE GROUP  
    (Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Nexus Gear Pump Porting{5073}
Nexus Gear Pump Porting{5073}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Specifications
Hydraulic Pump<BR> (8J6730) (Part of 8J6731 Pump Group)
120G MOTOR GRADER HYDRAULIC SYSTEM AND STEERING
Hydraulic Pump<BR> (8J5846) (Part of 8J6731 Pump Group)
120G MOTOR GRADER HYDRAULIC SYSTEM AND STEERING
Hydraulic Pump Mounting
120G MOTOR GRADER HYDRAULIC SYSTEM AND STEERING
Drive For Hydraulic Pump
120G MOTOR GRADER HYDRAULIC SYSTEM AND STEERING
Supplemental Steering Pump
"G" SERIES MOTOR GRADERS SUPPLEMENTAL STEERING SYSTEM
Motor - 24 Volt<BR> (2G5515)
"G" SERIES MOTOR GRADERS SUPPLEMENTAL STEERING SYSTEM
Relief Valve<BR> (4T1056)
"G" SERIES MOTOR GRADERS SUPPLEMENTAL STEERING SYSTEM
Hydraulic Pump<BR> 120G: (Earlier 4T0501, Later 6E1278); 12G, 130G, 140G: (Earlier 9T1417, Later 6E1279)
12G, 120G, 130G & 140G MOTOR GRADERS HYDRAULIC SYSTEM & STEE
Electric Drive Pump Groups
"G" SERIES MOTOR GRADERS SUPPLEMENTAL STEERING SYSTEM
Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Vane Type Hydraulic Pumps {5055}
Vane Type Hydraulic Pumps {5055}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Hydraulic Piston Pumps Used in Certain Models of Caterpillar Equipment{3203, 5070, 5084}
Hydraulic Piston Pumps Used in Certain Models of Caterpillar Equipment{3203, 5070, 5084}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073}
Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073}
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Hydraulic Piston Pumps{5070}
Bench Test Procedure for Hydraulic Piston Pumps{5070}
Disassembly and Assembly
Steering Pump
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Pressure And Flow Compensator Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Hydraulic Pump
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Steering Pump
120G VEHICLE SYSTEMS
Cooler Pump
120G VEHICLE SYSTEMS
Hydraulic Pump
120G VEHICLE SYSTEMS
Service Magazine
Snap Ring No Longer Used On Shaft Of Piston-Type Hydraulic Pumps And Motors{5070,5058}
1980/08/04
Maximum Permissible Rates For Case Drain Leakage Permit Field Checks Of Piston-Type Hydraulic Pumps And Motors{5070,5058}
1980/09/01
Spacer Removed From Hydraulic Pump Groups{5070}
1980/11/03
Swashplate Stop Setting For Piston Pumps{5070}
1984/04/09
Correct Position Of O-ring Seals And Back-Up Rings In Pump Control Head Group{5070}
1984/10/08
Identification Grooves Used On Slippers For Pistons In Hydraulic Pumps And Motors{5070,5058}
1984/11/26
New Variable Displacement Implement Piston Pump Used{5084}
1985/08/05
New Metering Pump Groups Used In Steering Control Group{4306,4312}
1978/06/19
Swashplate Stop Setting For Piston Pumps Made Easier{5070}
1978/10/30
Pump Failure Can Be Prevented{5070,5200}
1979/08/20
New Shield Protects Shaft Seal On Motor Grader Piston Pumps {5070}
1993/06/14
New Metering Pump Group Available To Reduce Drift In Motor Graders With Single Steering Cylinder{4312}
1993/07/26
Cover Plate, Flange are Available for Use During Flow Tests on the Main Hydraulic Pumps {0738, 5070, 5084}
2005/04/25

Caterpillar Parts SIS Catalog 120G :

PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP AND MOUNTING GROUP
9D-0950 PUMP AND MOUNTING GROUP
PILOT OPERATED RELIEF VALVE GROUP
9J-0794 PILOT OPERATED RELIEF VALVE GROUP
VALVE GP-UNLOADING
9J-1762 VALVE GP-UNLOADING
COMBINATION VALVE GROUP
9J-0792 COMBINATION VALVE GROUP
COMBINATION VALVE GROUP
9J-0792 COMBINATION VALVE GROUP
RELIEF VALVE GROUP
9J-5147 RELIEF VALVE GROUP
LINES GP-PUMP
9D-1130 LINES GP-PUMP
PUMP GP-SLIPPER & GEAR PISTON
8J-6731 PUMP GP-SLIPPER & GEAR PISTON
HEAD GP-PUMP CONTROL
8J-6729 HEAD GP-PUMP CONTROL
VALVE GP
8J-6103 VALVE GP
SERVO VALVE GROUP
8J-6316 SERVO VALVE GROUP
VALVE & LINKAGE GP
9D-2880 VALVE & LINKAGE GP
VALVE & LINKAGE GP
9D-5250 VALVE & LINKAGE GP
VALVE & LINKAGE GP
9D-1580 VALVE & LINKAGE GP
VALVE & LINKAGE GP
9D-1580 VALVE & LINKAGE GP

Truck sale:

Caterpillar 120G
 
Caterpillar 120G
- motor graders
HOLT CAT
 
40,000 
Caterpillar 120G, motor graders, Construction
- motor graders
ALTORFER INC.
Caterpillar H120GCS.CW40S, hammer, Construction
18,210 
Caterpillar H120GCS.CW40S, hammer, Construction
- hammer
BERGERAT MONNOYEUR S.A.S.
Caterpillar 120G, motor graders, Construction
32,000 
Caterpillar 120G, motor graders, Construction
- motor graders
FOLEY EQUIPMENT COMPANY
 
33,500 
Caterpillar HH120GCS, hammer, Construction


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