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6D423 TANDEM FRONT BRAKE GROUP 5D8645 & 5D8646 Brake parts are shown on Page 70 120 MOTOR GRADER




BRAKING SYSTEM

BRAKE GP
 

#UEG0231S0350
 

6D-0423: TANDEM FRONT BRAKE GROUP

6D423 TANDEM FRONT BRAKE GROUP
5D8645 & 5D8646 Brake parts are shown on Page 70
c125971 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3D-2219 Y [1] CYLINDER ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  2D-7805 [2] ARMOR  
  4B-8756 [2] NUT  
    (1 EACH IN 6D9565 AND 6D9566 ASSEM.)
  9S-1350 [2] CLIP  
  9S-1310 [6] CLIP  
  4D-1726 [36] BOLT  
  4D-6433 [36] WASHER  
  5D-8645 [1] BRAKE ASSEM (RIGHT HAND)  
  5D-8646 Y [1] BRAKE ASSEM. (LEFT HAND)  
    (SEE SEPARATE ILLUSTRATION)
  2D-1345 [2] DRUM  
  1A-8537 [16] BOLT  
  3B-4510 [16] LOCKWASHER  
  6D-9565 [1] TUBE ASSEM (RIGHT HAND)  
  6D-9566 [1] TUBE ASSEM (LEFT HAND)  
  8F-5900 [2] SEAL  
  5D-8352 [2] NUT  
    (1 IN EACH TUBE ASSEM. 6D9565 AND 6D9566)
  4D-6236 [2] CAGE  
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0351
 

3D-2219: CYLINDER AS

3D2219 MASTER CYLINDER ASSEMBLY
Part of 6D423 Tandem Front Brake Group
c109542 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9B-1544 [1] CAP ASSEM.  
  6B-7220 [1] CUP  
    (PART OF ASSEM. 4B8981)
  4B-8985 [1] PLATE  
  4B-8984 H [1] WIRE  
  3D-9334 J [1] REBUILD KIT  
    (CONSISTS OF ALL PARTS MARKED H)
  4B-8989 H [1] BOOT  
  2D-9602 [1] ROD ASSEM.  
  4B-8981 H [1] PISTON ASSEM.  
  9B-1545 [1] GASKET  
  3D-8323 H [1] VALVE ASSEM.  
  4B-8983 [1] SPRING ASSEM.  
  4B-8982 H [1] CUP  
  J   NOT PART OF 3D2219 CYLINDER AS
 

#UEG0231S0352
 

7D-0480: BRAKE GROUP

7D480 BRAKE GROUP--Type 1
To provide Four Wheel Power Boosted Brakes. 5D8415, 5D8416 Brakes, 3D2532 Valve
and 6D175 Cylinder parts are shown on Pages 123 and 124
c125560 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-9565 [1] TUBE ASSEM. (Right Hand)  
  6D-9566 [1] TUBE ASSEM. (Left Hand)  
2. 4B-8756 [2] NUT  
3. 2D-7805 [2] ARMOR  
4. 5D-8352 [2] NUT  
    (1/2 each in 6D9565 & 6D9566 Assem.)
5. 9S-1350 [2] CLIP  
6. 9S-1310 [6] CLIP  
7. 1A-8537 [16] BOLT  
  3B-4510 [16] LOCKWASHER  
8. 5D-8415 Y [2] BRAKE ASSEM. (Front & Rear R.H.)  
  5D-8416 Y [2] BRAKE ASSEM. (Front & Rear L.H.)  
    (See Separate Illustrations)
9. 4D-6236 [2] CAGE  
10. 2D-1345 [2] DRUM  
11. 4D-1726 [36] BOLT  
  4D-6433 [36] WASHER  
12. 4B-3388 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
13. 2K-0190 [2] FLANGE  
  5F-1678 [1] SEAL  
14. 1A-2029 [4] BOLT  
15. 3B-4506 [13] LOCKWASHER  
16. 4D-6123 [1] HOSE ASSEM. (26.50" long overall)  
17. 0L-2070 [1] BOLT  
  1D-4717 [1] NUT  
18. 1H-3481 [1] CLAMP  
  1B-5964 [1] SPACER  
19. 4D-6124 [1] HOSE ASSEM. (30.50" long overall)  
20. 0S-1588 [4] BOLT  
21. 5F-6916 [2] CLAMP  
  2D-0117 [1] ELBOW  
  1B-0581 [2] BOLT  
  1B-4202 [2] NUT  
22. 6F-8425 [4] BOLT  
  1B-4203 [4] NUT  
23. 0S-1619 [4] BOLT  
24. 3D-2532 Y [1] VALVE GROUP  
    (See Separate Illustration)
  7S-3399 [1] HOSE ASSEM. (20.50" long overall)  
25. [1] HOSE  
  3S-8606 [2] SLEEVE  
  7S-2369 [1] STEM ASSEM. (Threaded)  
  3S-9454 [1] STEM ASSEM.  
  7S-0451 [1] HOSE ASSEM. (11.75" long overall)  
26. [1] HOSE  
  3S-8606 [1] SLEEVE  
  5S-9591 [1] STEM ASSEM.  
27. 6D-0175 Y [1] CYLINDER ASSEM.  
    (See Separate Illustration)
28. 0T-0320 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
29. 3D-2495 [1] BRACKET  
30. 7D-0530 [1] TUBE ASSEM.  
31. 1H-5278 [2] FLANGE  
  5F-7054 [1] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0353
 

7D-0480: BRAKE GROUP

7D480 BRAKE GROUP--Type 2
To Provide 4 Wheel Power Boosted Brakes. 7D5649 Cylinder, 5D8415, 5D8416 Brakes
and 3D2532 Valve parts are shown on Pages 122B, 123 and 124
c130776 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-9565 [1] TUBE ASSEM. (Right Hand)  
  6D-9566 [1] TUBE ASSEM. (Left Hand)  
2. 4B-8756 [2] NUT  
3. 2D-7805 [2] ARMOR  
4. 5D-8352 [2] NUT  
    (1/2 each in 6D9565 & 6D9566 Assem.)
5. 9S-1350 [2] CLIP  
6. 9S-1310 [6] CLIP  
7. 1A-8537 [16] BOLT  
  3B-4510 [16] LOCKWASHER  
8. 5D-8415 Y [2] BRAKE ASSEM. (Front & Rear R.H.)  
  5D-8416 Y [2] BRAKE ASSEM. (Front & Rear L.H.)  
    (See Separate Illustrations)
9. 4D-6236 [2] CAGE  
10. 2D-1345 [2] DRUM  
11. 4D-1726 [36] BOLT  
  4D-6433 [36] WASHER  
12. 4B-3388 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
13. 2K-0190 [2] FLANGE  
  5F-1678 [1] SEAL  
14. 1A-2029 [4] BOLT  
15. 3B-4506 [13] LOCKWASHER  
16. 4D-6123 [1] HOSE ASSEM. (26.50" long overall)  
17. 0L-2070 [1] BOLT  
  1D-4717 [1] NUT  
18. 1H-3481 [1] CLAMP  
  1B-5964 [1] SPACER  
19. 4D-6124 [1] HOSE ASSEM. (30.50" long overall)  
20. 0S-1588 [4] BOLT  
21. 5F-6916 [2] CLAMP  
  2D-0117 [1] ELBOW  
  1B-0581 [2] BOLT  
  1B-4202 [2] NUT  
22. 6F-8425 [4] BOLT  
  1B-4203 [4] NUT  
23. 0S-1619 [4] BOLT  
24. 3D-2532 Y [1] VALVE GROUP  
    (See Separate Illustration)
  7S-3399 [1] HOSE ASSEM.  
25. 9S-0671 H HOSE 17"  
  3S-8606 [2] SLEEVE  
  7S-2369 [1] STEM ASSEM. (Threaded)  
  3S-9454 [1] STEM ASSEM.  
  7S-0451 [1] HOSE ASSEM. (11.75" long overall)  
26. [1] HOSE  
  3S-8606 [1] SLEEVE  
  5S-9591 [1] STEM ASSEM.  
27. 7D-5649 Y [1] CYLINDER ASSEM.  
    (See Separate Illustration)
28. 0T-0320 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
29. 3D-2495 [1] BRACKET  
30. 7D-0530 [1] TUBE ASSEM.  
31. 1H-5278 [2] FLANGE  
  5F-7054 [1] SEAL  
32. 9F-2247 [1] PLUG  
  H   ORDER BY THE INCH
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0354
 

9D-5600: SERVICE BRAKE CONTROL ARRANGEMENT

9D5600 SERVICE BRAKE CONTROL ARRANGEMENT--Part 1 of 2--Field Installation
CONVERTS NON-BOOSTED BRAKES TO POWER BOOSTED BRAKES
3D2532 Valve parts are shown on Page 124
c146453 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0T-0320 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
2. 1H-3481 [1] CLAMP  
3. 3D-2532 Y [1] VALVE GROUP  
    (Separate Illustration)
4. 4J-5267 [3] SEAL  
5. 0S-1619 [4] BOLT  
6. 3B-4506 [5] LOCKWASHER  
7. 7S-0451 [1] HOSE ASSEM.  
    (Includes)
  9S-0671 H HOSE 9.9 in.  
8. 3B-8606 [1] SLEEVE  
  5S-9591 [1] STEM ASSEM.  
9. 7S-3399 [1] HOSE ASSEM.  
    (Includes)
  9S-0671 H HOSE 17 in.  
10. 3S-8606 [2] SLEEVE  
11. 3S-9454 [1] STEM ASSEM.  
12. 7S-2369 [1] STEM ASSEM.  
13. 0L-2070 [1] BOLT  
  1B-5964 [1] SPACER  
  1D-4717 [1] NUT  
  H   ORDER BY THE FOOT
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0355
 

9D-5600: SERVICE BRAKE CONTROL ARRANGEMENT

9D5600 SERVICE BRAKE CONTROL ARRANGEMENT--Part 2 of 2--Field Installation
CONVERTS NON-BOOSTED BRAKES TO POWER BOOSTED BRAKES
7D5649 Cylinder parts are shown on Page 122B
c146454 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-0530 [1] TUBE ASSEM.  
  4B-8774 [2] NUT  
2. 3D-2495 [1] BRACKET  
3. 7D-5649 Y [1] CYLINDER ASSEM.  
    (Separate Illustration)
4. 6B-3591 [4] BOLT  
  1B-4203 [4] NUT  
5. 2D-0117 [1] ELBOW  
6. 1B-0581 [2] BOLT  
  1B-4202 [2] NUT  
7. 5F-6916 [2] CLAMP  
8. 4D-6124 [1] HOSE ASSEM.  
9. 0S-1588 [4] BOLT  
10. 9F-2247 [1] PLUG  
11. 4D-6123 [1] HOSE ASSEM.  
12. 1P-4576 [2] FLANGE  
13. 1A-2029 [4] BOLT  
  4B-4278 [4] WASHER  
14. 1P-4574 [2] FLANGE  
  5F-7054 [1] SEAL  
15. [4] BOLT  
  4B-4277 [4] WASHER  
16. 4J-5267 [3] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0356
 

7D-5649: CYLINDER AS-POWER MASTER

7D5649 POWER CYLINDER ASSEMBLY
Part of 7D480 Brake Group shown on Page 122A
6D689 Cylinder parts are shown on Page 125
c129797 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3D-2503 [1] YOKE  
  1B-4430 [1] NUT  
  6D-0689 Y [1] CYLINDER ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  7D-5648 Y [1] CYLINDER ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  4B-8995 [1] PLUG  
  4B-8994 [1] GASKET  
  0S-1588 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0357
 

7D-5648: CYLINDER AS-MASTER

7D5648 MASTER CYLINDER ASSEMBLY
Part of 7D5649 Master Power Cylinder Assembly
c136777 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4B-8987 [1] PLUG  
  4D-0761 [1] MASTER CYLINDER REBUILD KIT  
    (CONSISTS OF ALL PARTS MARKED H)
  1K-6519 H [1] GASKET  
  3D-8307 [1] SPRING  
  4D-0527 [1] RETAINER  
  4D-0522 H [1] CUP  
  3K-9879 H [1] RING  
  6D-7128 H [1] SEAL  
  3D-8313 H [1] PACKING  
    (PARTS OF PISTON ASSEM.4D532)
  4D-0534 [1] PISTON ASSEM.  
    CONSISTING OF:
  6B-7220 H [1] CUP  
  4D-0533 [1] PISTON  
  4D-0532 [1] PISTON ASSEM.  
  3D-8314 H [1] VALVE ASSEM.  
    (PART OF PISTON ASSEM.4D532)
  3D-8323 H [1] VALVE ASSEM.  
  3D-8317 H [1] RING  
  3D-8316 H [1] RETAINER  
  3D-8315 H [1] SPRING  
    (PARTS OF PISTON ASSEM.4D532)
 

#UEG0231S0358
 

5D-8415: BRAKE ASSEMBLY

5D8415 BRAKE ASSEMBLY--R.H.--2 Required
5D8416 BRAKE ASSEMBLY--L.H.--2 Required
Part of 7D480 Brake Group shown on Pages 122 and 122A
c227400 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-0539 [1] CYLINDER ASSEM.  
    (Right Hand Upper-Left Hand Upper)
2. 6D-0547 [2] COVER  
3. 6D-0551 [2] SPRING  
4. 6D-0552 R [2] SHOE AND LINING ASSEM.  
5. 6D-0535 [1] CYLINDER ASSEM.  
    (Right Hand Lower)
  6D-0536 [1] CYLINDER ASSEM.  
    (Left Hand Lower)
    (Each Includes)
6. 6D-0557 [1] SCREW  
7. 6D-0537 [1] PLATE ASSEM. (R.H.)  
    (Includes)
  9D-9215 C [2] RIVET  
8. 6D-0541 [2] SUPPORT ASSEM. (R.H.)  
    (Each Includes)
9. 6D-0543 [1] SCREW  
10. 6D-0545 [1] WHEEL  
11. 6D-0546 [1] SPRING  
12. 1H-3329 [1] SCREW ASSEM.  
13. 6D-7450 [2] PIN  
14. 6D-0538 [1] PLATE ASSEM.  
    (Includes)
  9D-9215 C [2] RIVET  
15. 6D-0542 [2] SUPPORT ASSEM. (L.H.)  
    (Each Includes)
16. 6D-0544 [1] SCREW  
17. 6D-0545 [1] WHEEL  
18. 6D-0546 [1] SPRING  
19. 1H-3329 [1] SCREW ASSEM.  
20. 6D-0548 [1] TUBE ASSEM.  
21. 6D-0549 [2] SPRING  
22. 2H-3755 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6D-0554 [1] BRAKE LINING KIT  
    (Consists of a complete set of LININGS AND RIVETS FOR ONE WHEEL)
  6D-0553 [1] GUIDE BOLT KIT  
    (Includes cotter pins, bolts, washers AND CASTLE NUTS FOR ONE WHEEL)
  6D-0556 [1] WHEEL CYLINDER KIT  
    (Includes spring assembly, cups AND BOOTS FOR ONE CYLINDER)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0231S0359
 

5D-8416: BRAKE ASSEMBLY

5D8415 BRAKE ASSEMBLY--R.H.--2 Required
5D8416 BRAKE ASSEMBLY--L.H.--2 Required
Part of 7D480 Brake Group shown on Pages 122 and 122A
c227400 UEG0231S
  For full view, you need register

Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-0539 [1] CYLINDER ASSEM.  
    (Right Hand Upper-Left Hand Upper)
2. 6D-0547 [2] COVER  
3. 6D-0551 [2] SPRING  
4. 6D-0552 R [2] SHOE AND LINING ASSEM.  
5. 6D-0535 [1] CYLINDER ASSEM.  
    (Right Hand Lower)
  6D-0536 [1] CYLINDER ASSEM.  
    (Left Hand Lower)
    (Each Includes)
6. 6D-0557 [1] SCREW  
7. 6D-0537 [1] PLATE ASSEM. (R.H.)  
    (Includes)
  9D-9215 C [2] RIVET  
8. 6D-0541 [2] SUPPORT ASSEM. (R.H.)  
    (Each Includes)
9. 6D-0543 [1] SCREW  
10. 6D-0545 [1] WHEEL  
11. 6D-0546 [1] SPRING  
12. 1H-3329 [1] SCREW ASSEM.  
13. 6D-7450 [2] PIN  
14. 6D-0538 [1] PLATE ASSEM.  
    (Includes)
  9D-9215 C [2] RIVET  
15. 6D-0542 [2] SUPPORT ASSEM. (L.H.)  
    (Each Includes)
16. 6D-0544 [1] SCREW  
17. 6D-0545 [1] WHEEL  
18. 6D-0546 [1] SPRING  
19. 1H-3329 [1] SCREW ASSEM.  
20. 6D-0548 [1] TUBE ASSEM.  
21. 6D-0549 [2] SPRING  
22. 2H-3755 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6D-0554 [1] BRAKE LINING KIT  
    (Consists of a complete set of LININGS AND RIVETS FOR ONE WHEEL)
  6D-0553 [1] GUIDE BOLT KIT  
    (Includes cotter pins, bolts, washers AND CASTLE NUTS FOR ONE WHEEL)
  6D-0556 [1] WHEEL CYLINDER KIT  
    (Includes spring assembly, cups AND BOOTS FOR ONE CYLINDER)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

Information:

Specifications
Brake Assembly
NO. 120 & NO. 140 MOTOR GRADERS HYDRAULIC SYSTEM, STEERING A
Transfer Gears And Parking Brake<BR> (Power Shift)
NO. 120 & NO. 140 MOTOR GRADERS HYDRAULIC SYSTEM, STEERING A
Parking Brake<BR> (Direct Drive)
NO. 120 & NO. 140 MOTOR GRADERS HYDRAULIC SYSTEM, STEERING A
Bevel Gear, Transfer Gears And Parking Brake
NO. 120 & NO. 140 MOTOR GRADERS (POWER SHIFT TRANSMISSION)
Tool Operating Manual
149-7173 Bearing Handling Bracket Assembly {0374, 0599, 0629, 0632, 4006, 4008, 7551}
149-7173 Bearing Handling Bracket Assembly {0374, 0599, 0629, 0632, 4006, 4008, 7551}
193-4124 Rear Wheel Bearing Preload Adjuster for 793 Off-Highway Trucks{0374, 0599, 0700, 0722, 0727, 0731}
193-4124 Rear Wheel Bearing Preload Adjuster for 793 Off-Highway Trucks{0374, 0599, 0700, 0722, 0727, 0731}
Reuse And Salvage Guidelines
Procedure to Salvage Tang Slots on Transmission and Brake Pistons {0679, 3160, 4011, 4251}
Procedure to Salvage Tang Slots on Transmission and Brake Pistons {0679, 3160, 4011, 4251}
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Disassembly and Assembly
Hydraulic Brake Master Cylinder And Power Cylinder
NO. 120 & NO. 140 MOTOR GRADERS VEHICLE SYSTEMS
Brake Shoes And Wheel Cylinders
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Rear Wheel Spindles
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Parking Brake Cylinder (Power Shift)
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Parking Brake (Power Shift)
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Parking Brake (Direct Drive)
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Service Magazine

Caterpillar Parts SIS Catalog 120 :

Truck sale:

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250,000 
Caterpillar 120 LVR, motor graders, Construction
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278,720 
Caterpillar 120, motor graders, Construction
- motor graders
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250,000 
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RING POWER CORP.
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