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8D7306 AIR CONTROL VALVE GROUP--Basic Part of 8D5190 Centershift Lock Control Group shown on Pages 126 and 126A 12G


HYDRAULIC SYSTEM
VALVE GP
VALVE GP-CHECK
LINES GP-HYDRAULIC
CYLINDER GP
WORK TOOLS
BLADE GP
HYDRAULIC SYSTEM
CYLINDER GP

MOTOR GRADER 12G MOTOR GRADER 61M
 12G MOTOR GRADER 61M00001-02628 (MACHINE) UEG0772S 12G 61M   (1973)

HYDRAULIC SYSTEM

VALVE GP
AIR CONTROL VALVE GROUP
8D-7306 AIR CONTROL VALVE GROUP
VALVE GP
8J-6103 VALVE GP
VALVE & LINES GP
8D-9765 VALVE & LINES GP
VALVE & LINES GP
8D-9765 VALVE & LINES GP
VALVE & LINES GP
8D-9765 VALVE & LINES GP
VALVE & LINES GP
8D-9765 VALVE & LINES GP
 

#UEG0772S0230
 

8D-7306: AIR CONTROL VALVE GROUP

8D7306 AIR CONTROL VALVE GROUP--Basic
Part of 8D5190 Centershift Lock Control Group shown on Pages 126 and 126A
c207375 UEG0772S
8D7306 AIR CONTROL VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5F-9144 [2] SEAL  
2. 9D-1289 C [2] VALVE  
3. 2S-4663 [1] SEAL  
4. 4M-5281 [2] BOLT  
  3B-4504 [2] LOCKWASHER  
5. 4J-3957 [2] SPRING  
6. 4J-3961 [2] SPRING  
  C   INDICATES CHANGE
 

#UEG0772S0231
 

8J-9974: VALVE GP-CHECK

8J9974 PILOT OPERATED CHECK VALVE GROUP
Part of 8D9530 Hydraulic Centershift Lines, 8D2820 Lift Cylinder Lines and
8D8590 Hydraulic Articulation Lines shown on Pages 128, 137 and 182
c207408 UEG0772S
8J9974 VALVE GP-CHECK Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-0404 [2] PLUG  
  7J-9933 [2] SEAL  
2. 9J-8253 C [1] BODY ASSEM.  
    (Includes)
3. 9J-0405 [2] SEAT  
4. 9J-5768 [1] PISTON  
5. 9J-0403 [2] SPRING  
6. 9J-4871 C [2] BALL  
7. 8J-5456 [2] ADAPTER  
8. 3D-2824 [2] SEAL  
9. 8J-9979 [2] CHOKE  
  C   INDICATES CHANGE
 

#UEG0772S0232
 

8D-9530: HYDRAULIC CENTERSHIFT LINES GROUP

8D9530 HYDRAULIC CENTERSHIFT LINES GROUP
8J9974 Valve parts are shown on Page 127
c161388 UEG0772S
8D9530 HYDRAULIC CENTERSHIFT LINES GROUP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-5960 [2] HOSE ASSEM. (not serv)  
    For service of each furnish:
  8S-6417 [1] COUPLING ASSEM. (straight)  
  4S-5414 [2] SLEEVE  
  8S-6393 [1] COUPLING ASSEM. (90 degrees)  
  5P-0178 H HOSE 390 cm(153.54 in.)  
2. 030-8188 [5] CONNECTOR  
3. 3K-0360 [12] SEAL  
4. 4J-5468 [1] CLAMP  
5. 9D-5962 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 241 cm(94.88 in.)  
  4S-5414 [2] SLEEVE  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  1P-9919 [1] COUPLING ASSEM. (45 degrees)  
6. 5D-4988 [2] CLAMP  
7. 0L-1351 [4] BOLT  
8. 3B-4506 [8] LOCKWASHER  
9. 9D-5864 [2] HOSE ASSEM. (not serv)  
    For service of each furnish:
  5P-0178 H HOSE 85 cm(33.47 in.)  
  4S-5414 [2] SLEEVE  
  8S-6417 [2] COUPLING ASSEM.  
10. 8J-9974 Y [1] CHECK VALVE  
    (Separate Illustration)
11. 7D-9984 [4] ELBOW  
12. 0L-1143 [3] BOLT  
13. 1A-5822 [2] BOLT  
14. 8D-9499 [1] BLOCK  
15. 9D-5963 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 316 cm(124.41 in.)  
  8S-6417 [2] COUPLING ASSEM.  
  4S-5414 [2] SLEEVE  
16. 3B-4508 [2] LOCKWASHER  
17. 1S-0994 [2] CLIP  
18. 4H-9454 [2] CLAMP  
19. 005-4362 [3] ELBOW  
20. 0S-1594 [1] BOLT  
  1D-4717 [1] NUT  
21. 030-7962 [2] ELBOW  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
 

#UEG0772S0233
 

7D-9700: CYLINDER & MOUNTING GP

CENTERSHIFT CYLINDER AND MOUNTING (7D9700 N/S)
8J6367 Cylinder parts are shown on Page 130
c207390 UEG0772S
7D9700 CYLINDER & MOUNTING GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1D-4628 C [4] BOLT  
2. 3B-4514 [4] LOCKWASHER  
3. 8J-6367 Y [1] CYLINDER GROUP  
    (Separate Illustration)
4. 9D-3089 [2] CAP  
5. 9D-2754 [4] INSERT  
6. 3B-8485 C [2] FITTING  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0772S0234
 

8D-7950: CYLINDER & MOUNTING GP

BLADE LIFT CYLINDER AND MOUNTING (8D7950 N/S)
8J6380 Cylinder parts are shown on Page 131
c207387 UEG0772S
8D7950 CYLINDER & MOUNTING GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1573 [8] BOLT  
  2M-0849 [8] WASHER  
2. 8D-7998 [4] CAP ASSEM.  
3. 8D-7996 [1] BEARING  
4. 3P-1461 [4] SEAL  
5. 9D-2754 [4] INSERT  
6. 9D-3089 [2] CAP  
7. 1D-4628 C [4] BOLT  
  3B-4514 [4] LOCKWASHER  
8. 8J-6380 Y [2] CYLINDER GROUP  
    (Separate Illustration)
9. 3B-8485 C [2] FITTING  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0772S0235
 

8J-6367: CENTERSHIFT CYLINDER GROUP

8J6367 CENTERSHIFT CYLINDER GROUP--(Changes 2, 3 & 4)--3.25" Bore x 18.08" Stroke
Part of Centershift Cylinder and Mounting shown on Page 129
c200099 UEG0772S
8J6367 CENTERSHIFT CYLINDER GROUP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7J-5639 [1] BOLT  
2. 8J-6368 [1] CYLINDER ASSEM.  
3. 1H-7339 [1] SEAL  
4. 8J-2574 [1] RING  
5. 8J-5912 [1] SCREW  
6. 8J-6378 [1] ROD ASSEM.  
7. 1K-6981 [1] SEAL  
8. 8J-6377 [1] CROWN  
9. 5J-8200 [1] SEAL  
10. 6J-6917 [1] SEAL  
11. 8J-6375 [1] HEAD  
12. 6J-0793 [1] SEAL ASSEM.  
13. 8J-6371 [1] RING  
14. 8J-6370 [1] PISTON  
15. 8J-7415 [1] WASHER  
 

#UEG0772S0236
 

8J-6380: BLADE LIFT CYLINDER

8J6380 BLADE LIFT CYLINDER (Change 2 & 3)--3.25" Bore x 40.00" Stroke
Part of Blade Lift Cylinder and Mounting shown on Page 129
c200421 UEG0772S
8J6380 BLADE LIFT CYLINDER Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7J-5639 [1] BOLT  
2. 8J-7415 [1] WASHER  
3. 8J-6371 [1] RING  
4. 6J-0793 [1] SEAL ASSEM.  
5. 8J-6370 [1] PISTON  
6. 8J-6381 R [1] CYLINDER ASSEM.  
7. 8J-6384 [2] BEARING  
8. 1H-7339 [1] SEAL  
9. 8J-2574 [1] RING  
10. 8J-6375 [1] HEAD  
11. 6J-6917 [1] SEAL  
12. 5J-8200 [1] SEAL  
13. 8J-5912 [1] SCREW  
14. 1K-6981 [1] SEAL  
15. 8J-6666 [1] ROD ASSEM.  
16. 8J-6377 [1] CROWN  
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0772S0237
 

8D-5285: LIFT GP-BLADE

8D5285 BLADE LIFT GROUP--Part 1 of 2
c209638 UEG0772S
8D5285 LIFT GP-BLADE Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-2753 [2] LOCK  
2. 7F-5227 [6] BOLT  
  3B-4512 [6] LOCKWASHER  
3. 8D-8169 [1] ARM ASSEM.  
    (Includes)
4. 8D-8168 [1] BEARING  
5. 7D-8889 [1] BEARING  
6. 9D-6583 [8] SEAL  
7. 8D-1784 [2] PIN  
8. 9D-6584 [1] SEAL  
9. 8D-9849 [1] BAR ASSEM.  
    (Includes)
10. 8D-6629 [4] BEARING  
11. 6D-4671 [1] BALLSTUD  
12. 9D-3311 [2] BEARING  
  9D-3526 [1] SPACER  
13. 9D-3648 [1] RING  
14. 8D-4698 [2] LOCK  
15. 1A-8651 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
16. 8D-8173 [1] ARM ASSEM.  
    (Includes)
17. 8D-8168 [1] BEARING  
18. 7D-8889 [1] BEARING  
 

#UEG0772S0238
 

8D-5285: LIFT GP-BLADE

8D5285 BLADE LIFT GROUP--Part 2 of 2
c209639 UEG0772S
8D5285 LIFT GP-BLADE Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-8891 [2] RETAINER  
2. 7D-8884 [2] SEAL (plastic)  
  7H-2444 [2] SEAL (rubber)  
3. 7D-8876 [2] WASHER 2.388 mm(.094 in.) thick  
  7D-8875 [4] WASHER 1.905 mm(.075 in.) thick  
4. 7D-8879 [8] SHIM .127 mm(.005 in.) thick  
  7D-8881 [6] SHIM .254 mm(.010 in.) thick  
  7D-8882 [2] SHIM .508 mm(.020 in.) thick  
5. 7D-8877 [2] WASHER 2.388 mm(.094 in.) thick  
  7D-8878 [4] WASHER 1.905 mm(.075 in.) thick  
6. 7D-8883 [2] SEAL (plastic)  
  5F-0149 [2] SEAL (rubber)  
7. 8D-8186 [2] YOKE ASSEM.  
    (Includes)
8. 7D-8892 [1] RING  
9. 7D-8874 [8] WASHER 1.905 mm(.075 in.) thick  
  7D-8873 [4] WASHER 2.388 mm(.094 in.) thick  
10. 8D-5214 [4] WASHER 2.388 mm(.094 in.) thick  
  8D-5217 [10] WASHER 1.219 mm(.048 in.) thick  
  8D-5216 [10] WASHER .762 mm(.030 in.) thick  
11. 8D-4689 [2] PIN  
12. 2G-3984 C [2] PLATE  
13. 9S-1366 [2] BOLT  
  2M-0849 [2] WASHER  
14. 0S-1587 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0772S0239
 

9D-9965: MOUNTING GP-CYLINDER

9D9965 CYLINDER MOUNTING GROUP
Part of 8D9740 & 9D9900 Arrangements listed on Pages 170B & 190F
AN ATTACHMENT
c159230 UEG0772S
9D9965 MOUNTING GP-CYLINDER Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2A-1538 [4] BOLT  
  3B-4512 [4] LOCKWASHER  
2. 7B-2501 [1] RING  
3. 2D-6341 [1] PIN  
4. 9D-9665 [1] BRACKET  
 

Information:

Special Instruction
Installation Of 12G, 14G, 130G And 140G Ripper-Scarifier (26V, 39V, 47W){5351, 6325, 6165}
Installation Of 12G, 14G, 130G And 140G Ripper-Scarifier (26V, 39V, 47W){5351, 6325, 6165}
Service Letter-NACD
Certain 0R1722 Remanufactured Hydraulic Pump Barrel Assemblies Need To Be Removed From Parts Stock
Certain 0R1722 Remanufactured Hydraulic Pump Barrel Assemblies Need To Be Removed From Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Specifications
Centershift Control Valve<BR> (8D7306 &amp; 2G8020)
12G & 14G MOTOR GRADERS AIR SYSTEM AND BRAKES
Air Valve For Centershift Lock Pin Valve<BR> (2G5694) Automatic Switch Co. HVA-200-733
12G & 14G MOTOR GRADERS AIR SYSTEM AND BRAKES
Hydraulic Pump<BR> (8J498) (Part of 8J6155 Pump Group)
12G, 130G, 140G MOTOR GRADERS HYDRAULIC SYSTEM AND STEERING
Hydraulic Pump<BR> (8J5846) (Part of 8J6155 Pump Group)
12G, 130G, 140G MOTOR GRADERS HYDRAULIC SYSTEM AND STEERING
Hydraulic Pump Mounting
12G, 130G, 140G MOTOR GRADERS HYDRAULIC SYSTEM AND STEERING
Control Valve Section
12G, 130G, 140G MOTOR GRADERS HYDRAULIC SYSTEM AND STEERING
Steering Metering Pump<BR> (3G3897)
12G, 130G, 140G MOTOR GRADERS 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
Hydraulic Pump<BR> 120G: (Earlier 4T0501, Later 6E1278); 12G, 130G, 140G: (Earlier 9T1417, Later 6E1279)
12G, 120G, 130G & 140G MOTOR GRADERS HYDRAULIC SYSTEM & STEE
Priority Valve
12G, 120G, 130G & 140G MOTOR GRADERS HYDRAULIC SYSTEM & STEE
Centershift Control Valve<BR> 2G8020
12G, 14G & 16G MOTOR GRADERS AIR SYSTEM & BRAKES
Service Letter-China
Certain 0R1722 Remanufactured Hydraulic Pump Barrel Assemblies Need To Be Removed From Parts Stock
Certain 0R1722 Remanufactured Hydraulic Pump Barrel Assemblies Need To Be Removed From Parts Stock
Service Letter-Asia
Service Letter-APD
Disassembly and Assembly
Centershift Lock Control Valve
12G, 14G, 16G, 120G, 130G & 140G MOTOR GRADERS OPERATOR'S ST
Wheel Lean And Centershift Lock Check Valves
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Centershift Lock Control Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Pressure And Flow Compensator Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS
Wheel Lean And Centershift Lock Check Valves
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Steering Pump (Earlier)
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Steering Pump (Later)
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Centershift Lock Control Valve
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Hydraulic Pump (Earlier)
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Hydraulic Pump (Later)
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Control Valves
12G,130G & 140G MOTOR GRADERS VEHICLE SYSTEMS
Transmission Hydraulic Control Valves
12G, 130G & 140G MOTOR GRADER POWER TRAIN
Service Magazine
New Air Conditioner And Mounting Group Has Improved Linkage To Operate Hydraulic System Dump Valve; Guide Bushing And Seal Added To Plunger{7320,5063}
1980/03/31
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
Valve Assembly Used In Centershift Lock Control Group To Prevent Accidental Rotation And Lowering Of Blade{5220,5221,5223,6151}
1980/10/20
Spacer Removed From Hydraulic Pump Groups{5070}
1980/11/03
Valve Assembly And Nipple Moved From Centershift Lock Control Group To Brake Control Group To Prevent Unauthorized Operation{4282,4267,5220,5221,5223,6151}
1980/11/10
Identification Of Hydraulic Control Valves{5064,5051,5054,5214,5226,5220}
1981/04/13
Make Sure Hydraulic Pump Is Correctly Assembled{5070}
1981/08/03
Keep The Lever For The Centershift Lock Control Valve In the &quot;Index And Run&quot; Position To Prevent Air Leakage{5220}
1985/03/18
Oil Leakage From Implement Control Valve Can Be Caused By Wrong Adjustment{5051}
1977/03/07
New Air Control Valve Group Used In Centershift Lock Control Groups{5220}
1977/08/22
Additional Circuit (Thirteenth Valve) Can Be Added To Motor Grader Hydraulic System{5051}
1987/11/23
Use Correct Procedure To Install Rubber Mountings For Implement Pump Group{5070}
1978/02/06
New Metering Pump Groups Used In Steering Control Group{4306,4312}
1978/06/19
Plastic Cover Changed To Prevent Contact With Hydraulic Control Valve Linkage{7301,5063}
1979/06/11
6V95 Socket And 6V96 Adjuster Wrench Available To Adjust Bearings In Implement Control Valves; Use Fabricated Boot Installer To Install The Rubber Boots On The Implement Control Valves{0612,5051,0660}
1979/06/18
New Blade Lift Valves Used For Easier Addition Of Valve Sections To The Valve Group {5051}
1993/10/04
Service Life Of The 3Z-4729 Tube Assembly Can Be Increased By Modifying The Mounting Plate For The Combination Valve Group {5057,5064,5084}
1995/05/15
New Valve Guide Available{1104}
1995/12/25

Caterpillar Parts SIS Catalog 12G :

CONTROL GP-CENTERSHIFT
8D-5190 CONTROL GP-CENTERSHIFT
CONTROL GP-CENTERSHIFT
8D-5190 CONTROL GP-CENTERSHIFT
LOCK GP-CENTERSHIFT
8D-9920 LOCK GP-CENTERSHIFT
VALVE GP
8J-5913 VALVE GP
CIRCLE DRIVE MOTOR LINES GROUP
8D-8630 CIRCLE DRIVE MOTOR LINES GROUP
CIRCLE DRIVE MOTOR LINES GROUP
8D-8630 CIRCLE DRIVE MOTOR LINES GROUP
DRIVE GP-CIRCLE
8D-7470 DRIVE GP-CIRCLE
DRIVE GP-CIRCLE
8D-7470 DRIVE GP-CIRCLE
VALVE GP-CHECK
8J-9974 VALVE GP-CHECK
HYDRAULIC CENTERSHIFT LINES GROUP
8D-9530 HYDRAULIC CENTERSHIFT LINES GROUP
CYLINDER & MOUNTING GP
7D-9700 CYLINDER & MOUNTING GP
CYLINDER & MOUNTING GP
8D-7950 CYLINDER & MOUNTING GP
CENTERSHIFT CYLINDER GROUP
8J-6367 CENTERSHIFT CYLINDER GROUP
BLADE LIFT CYLINDER
8J-6380 BLADE LIFT CYLINDER
LIFT GP-BLADE
8D-5285 LIFT GP-BLADE
LIFT GP-BLADE
8D-5285 LIFT GP-BLADE

Truck sale:

Caterpillar 12G
 
Caterpillar 12G
- motor graders
MILTON CAT
 
45.000 
Caterpillar 12G, bergbau-motorgrader, Bau-Und Bergbauausrüstung


Caterpillar 12G, Construction
52,000 
Caterpillar 12G, Construction
- motor graders
ALTORFER INC.
Caterpillar 12G, bergbau-motorgrader, Bau-Und Bergbauausrüstung
86.058 
Caterpillar 12G, bergbau-motorgrader, Bau-Und Bergbauausrüstung
- motor graders
SIME DARBY INDUSTRIAL SDN BHD
Malaysia
Caterpillar 12G, bergbau-motorgrader, Bau-Und Bergbauausrüstung
75.600 
Caterpillar 12G, bergbau-motorgrader, Bau-Und Bergbauausrüstung
- motor graders
HOLT CAT
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