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6D0689 POWER CYLINDER ASSEMBLY Part of 7D5649 Master Power Cylinder Assembly shown on Page 74 12F MOTOR GRADER




BRAKING SYSTEM

CYLINDER GP
 

#UEG0756S0100
 

6D-0689: POWER CYLINDER ASSEMBLY

6D0689 POWER CYLINDER ASSEMBLY
Part of 7D5649 Master Power Cylinder Assembly shown on Page 74
UEG0756S0100 UEG0756S
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Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UEG0756S0101
 

7D-5648: MASTER CYLINDER

7D5648 MASTER CYLINDER ASSEMBLY
Part of 7D5649 Master Power Cylinder Assembly shown on Page 74
UEG0756S0101 UEG0756S
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Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UEG0756S0102
 

8D-3400: PARKING BRAKE CONTROL GROUP

8D3400 PARKING BRAKE CONTROL GROUP
c153434 UEG0756S
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Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-9178 [1] LEVER ASSEM.  
2. 4B-4278 [1] WASHER  
3. 5D-4821 [1] PIN  
  5D-4822 [1] RING  
  4B-4277 [1] WASHER  
4. 3D-6648 [2] SPACER  
5. 1S-4244 [1] PIN  
  3B-4610 [1] COTTER PIN  
6. 0L-2070 [1] BOLT  
7. 1D-4717 [1] NUT  
8. 3B-4506 [11] LOCKWASHER  
9. 9F-0348 [1] PIN  
10. 3B-4617 [2] COTTER PIN  
11. 3D-6649 [2] CLAMP  
12. 1A-2029 [3] BOLT  
13. 1A-2029 C [2] BOLT  
14. 6D-6771 [1] CABLE ASSEM.  
15. 0L-1351 [2] BOLT  
16. 6D-0314 [1] SPRING (Inner)  
17. 1B-8719 [1] KEY  
18. 6D-0064 [1] CAGE ASSEM.  
  6D-0066 [1] BEARING  
19. 4J-7441 [1] SEAL (Oil)  
20. 1H-5728 [1] SEAL ("O" Ring)  
21. 8S-9092 [1] BOLT  
  1D-4720 [1] NUT  
22. 2A-3198 [1] WASHER  
23. 6D-0071 [1] RING (Lock)  
24. 0S-1594 [3] BOLT  
25. 6D-0070 [1] SHAFT  
26. 6D-0318 [1] LEVER  
27. 0S-0175 [1] PIN  
28. 6F-7010 [1] ROD END  
29. 1B-4430 [3] NUT  
30. 4D-7347 [2] RETAINER  
31. 6D-0315 [1] SPRING (Outer)  
32. 6D-6772 [1] BRACKET  
33. 6D-6768 C [1] BLOCK  
  C   INDICATES CHANGE
 

#UEG0756S0103
 

8D-2490: PARKING AND EMERGENCY BRAKE

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 1 of 3-Type 1
8J8761 Valve parts are shown on Page 89
AN ATTACHMENT
c141654 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-5957 [1] HOSE ASSEM.  
  9S-0247 H HOSE 59.6"  
2. 8S-6389 [1] COUPLING ASSEM. (90 degrees)  
3. 3S-7166 [2] SLEEVE  
4. 4S-7485 [1] STEM ASSEM. (90 degrees)  
5. 2H-1743 [2] CLIP  
6. 8D-2217 [1] PLATE  
7. 0S-1588 [2] BOLT  
8. 3B-4506 [5] LOCKWASHER  
9. 8S-9089 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  3H-7654 [3] WASHER  
10. 0S-1588 [2] BOLT  
11. 6D-0988 [1] FLANGE  
  5F-7054 [1] SEAL  
12. 0L-1143 [1] BOLT  
  6B-2882 [1] SPACER (.312" Thick)  
  3S-8712 [1] SPACER (1.19" Thick)  
13. 6M-8604 [1] CLAMP  
14. 4D-0622 [1] PLATE  
15. 4S-6399 [1] CONNECTOR  
16. 3L-6521 [1] TEE  
17. 7D-5958 [1] HOSE ASSEM.  
  9S-0247 H HOSE 127.5"  
18. 3S-9432 [1] STEM ASSEM. (90 degrees)  
19. 3S-7166 [1] SLEEVE  
20. 5S-5287 [1] STEM ASSEM. (45 degrees)  
21. 5F-1678 [1] SEAL  
22. 4F-7391 [1] SEAL  
23. 8J-8761 YC [1] VALVE GROUP  
    (Separate Illustration)
24. 030-7946 [1] ELBOW  
  3J-7354 [1] SEAL  
25. 7D-5961 [1] HOSE ASSEM. (62" long overall)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE INCH
 

#UEG0756S0104
 

8D-2490: PARKING AND EMERGENCY BRAKE

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 2 of 3-Type 1
8D8370 Valve parts are shown on Page 90
AN ATTACHMENT
c141653 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-8615 [1] HOSE ASSEM. (52" long overall)  
2. 032-1268 [1] ELBOW  
  6B-5072 [1] BUSHING  
3. 7D-5363 C [2] ADAPTER  
4. 6K-9194 [2] ELBOW  
5. 053-0700 [1] TEE  
6. 5D-9522 [1] UNION  
7. 052-0572 [1] TEE  
8. 8D-8370 Y [1] VALVE GROUP  
    (Separate Illustration)
9. 7D-3476 [1] ACCUMULATOR ASSEM.  
10. 2H-3933 [2] SEAL  
  4D-0993 [2] RING  
11. 2H-6184 [1] SEAL  
12. 001-9440 [1] CONNECTOR  
13. 7D-1782 [1] TUBE ASSEM.  
14. 7D-1774 [2] CLAMP  
15. 2K-6061 [2] SCREW  
  1D-4717 [2] NUT  
16. 3B-4506 [4] LOCKWASHER  
17. 7D-8543 [1] BOX ASSEM.  
  5D-8412 [4] SCREW  
18. 7K-0899 [1] GROMMET  
19. 7D-8769 [1] SWITCH  
20. 6L-9781 [1] CONNECTOR  
21. 8D-6992 [1] HOSE ASSEM. (76" long overall)  
22. 3S-2093 C [8] TIE  
23. 2B-3243 [1] CLIP  
24. 7D-9769 [1] HOSE ASSEM. (32" long overall)  
25. 4D-6988 [1] CLIP  
26. 7D-9771 [1] HOSE ASSEM. (84" long overall)  
27. 5B-8978 C [1] TEE  
28. 7D-8793 [1] ELBOW  
29. 7B-3235 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
30. 1P-9962 [1] PLATE  
31. 4B-4158 [4] SCREW  
32. 7D-7248 [1] BRACKET ASSEM.  
33. 2A-4639 [2] BOLT  
34. 030-7946 [1] ELBOW  
  3J-7354 [1] SEAL  
35. 7D-9766 [2] BOLT  
  7D-9751 [2] SPACER  
36. 8D-2413 H [1] CYLINDER ASSEM.  
37. 7D-7291 [1] RETAINER ASSEM.  
38. 7D-2148 [1] BOOT  
39. 5B-1909 [1] ROD  
40. 9M-6020 [1] PIN  
  3B-4618 [1] COTTER PIN  
41. 7D-9392 [1] LEVER  
42. 7D-7173 [1] SUPPORT  
43. 2R-6806 [1] CONNECTOR  
  3J-1907 [1] SEAL  
44. 7D-9844 [1] HOSE ASSEM. (33 in. long)  
45. 9D-0657 C [1] HOSE ASSEM. (67.00 in. long)  
    H -THE FOLLOWING REPAIR KIT IS AVAILABLE:
  8D-3213 [1] KIT (Seal)  
    (For 8D2413 Cylinder)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0756S0105
 

8D-2490: PARKING AND EMERGENCY BRAKE

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 3 of 3-Type 1
AN ATTACHMENT
c143724 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7F-8092 [1] KNOB  
2. 8D-2227 [1] LEVER ASSEM.  
  5H-3895 [1] BUSHING  
3. 8D-2226 [1] LEVER ASSEM.  
  5H-6188 [1] BUSHING  
4. 7D-9374 [3] SPACER  
5. 8D-2222 [1] PIN  
6. 9S-1303 [4] PIN  
  3B-4609 [4] COTTER PIN  
7. 8D-2223 [1] YOKE  
8. 0L-2070 [1] BOLT  
  9L-9132 [1] WASHER  
9. 7M-8426 [1] SPRING  
10. 1D-4717 [5] NUT  
  3B-4506 [5] LOCKWASHER  
11. 3D-6649 [2] CLAMP  
12. 6D-6768 [1] BLOCK  
13. 8D-2225 [1] PIN ASSEM.  
  5H-6188 [1] BUSHING  
14. 4F-3597 [1] SCREW  
  4B-2043 [1] NUT  
15. 6D-7464 [1] PLATE  
16. 5D-0019 [1] BULB  
17. 4D-9981 [1] LENS  
18. 7D-7388 [1] SOCKET AND WIRE ASSEM.  
19. 4S-1988 [1] TERMINAL  
20. 4D-9982 [1] SPRING  
21. 5D-9247 [1] BRACKET ASSEM.  
22. 7D-7411 [1] WIRE ASSEM.  
  3D-4467 [1] TERMINAL  
23. 7F-9224 [1] TERMINAL  
  2D-3981 [1] INSULATOR  
24. 7D-2514 [1] CONDUIT  
25. 4K-8302 C [2] CLIP  
26. 7D-8703 [1] WIRE ASSEM.  
27. 4S-1988 [1] TERMINAL  
28. 9F-3916 [1] TERMINAL  
29. 8D-2333 [1] COVER ASSEM.  
30. 8M-2772 [2] CLIP  
31. 7D-8678 [1] HARNESS ASSEM.  
32. 9F-3916 [2] TERMINAL  
33. 7F-9224 [3] TERMINAL  
34. 2B-2694 [2] BOLT  
  1D-4716 [2] NUT  
  3B-4505 [2] LOCKWASHER  
35. 3D-5878 [2] YOKE  
  1A-8285 [3] NUT  
36. 5K-2400 [1] SPRING (inner)  
37. 3S-3018 [1] SPRING (outer)  
38. 8D-2331 [1] RETAINER  
39. 0S-1590 [2] BOLT  
40. 8D-2356 [1] PLATE ASSEM.  
41. 8D-2342 [1] RETAINER  
42. 0S-1595 C [4] BOLT  
  3B-4508 [4] LOCKWASHER  
43. 8D-5903 [1] BLOCK  
44. 7D-8738 [1] HARNESS ASSEM.  
45. 7F-9224 [1] TERMINAL  
46. 8D-2328 [1] CABLE ASSEM.  
47. 8D-2218 [1] PLATE  
48. 3B-1915 [2] BOLT  
49. 8D-2239 [1] LEVER ASSEM.  
  8D-3211 [1] ROD  
  5H-6188 [1] BUSHING  
50. 1D-4719 C [2] NUT  
51. 1M-1993 C [2] SPACER  
  C   INDICATES CHANGE
 

#UEG0756S0106
 

8D-2490: BRAKE CONTROL GROUP

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 1 of 4-Type 2
8J8761 Valve parts are shown on Page 89
AN ATTACHMENT
c118750 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-5957 [1] HOSE ASSEM.  
  9S-0247 H HOSE 59.6"  
2. 8S-6389 [1] COUPLING ASSEM. (90 degrees)  
3. 3S-7166 [2] SLEEVE  
4. 4S-7485 [1] STEM ASSEM. (90 degrees)  
5. 4B-9302 C [2] CLIP  
6. 8D-2217 [1] PLATE  
7. 0S-1588 [2] BOLT  
8. 3B-4506 [5] LOCKWASHER  
9. 8S-9089 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  3H-7654 [3] WASHER  
10. 0S-1588 [2] BOLT  
11. 6D-0988 [1] FLANGE  
  5F-7054 [1] SEAL  
  0T-0573 C [1] BOLT  
12. 6B-2882 [1] SPACER (.312" Thick)  
  3S-8712 [1] SPACER (1.19" Thick)  
13. 6M-8604 [1] CLAMP  
14. 4D-0622 [1] PLATE  
15. 4S-6399 [1] CONNECTOR  
16. 3L-6521 [1] TEE  
17. 7D-5958 [1] HOSE ASSEM.  
  9S-0247 H HOSE 127.5"  
18. 3S-9432 [1] STEM ASSEM. (90 degrees)  
19. 3S-7166 [1] SLEEVE  
20. 5S-5287 [1] STEM ASSEM. (45 degrees)  
21. 5F-1678 [1] SEAL  
22. 4F-7391 [1] SEAL  
23. 8J-8761 Y [1] VALVE GROUP  
    (Separate Illustration)
24. 030-7946 [1] ELBOW  
  3J-7354 [1] SEAL  
25. 7D-5961 [1] HOSE ASSEM. (62" long overall)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE INCH
 

#UEG0756S0107
 

8D-2490: BRAKE CONTROL GROUP

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 2 of 4-Type 2
8D8370 Valve parts are shown on Page 90
AN ATTACHMENT
c118751 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-8615 [1] HOSE ASSEM. (52" long overall)  
2. 032-1268 [1] ELBOW  
  6B-5072 [1] BUSHING  
3. 7D-5363 [2] ADAPTER  
4. 6K-9194 [2] ELBOW  
5. 053-0700 [1] TEE  
6. 5D-9522 [1] UNION  
7. 052-0572 [1] TEE  
8. 8D-8370 Y [1] VALVE GROUP  
    (Separate Illustration)
9. 7D-3476 [1] ACCUMULATOR ASSEM.  
10. 2H-3933 [2] SEAL  
  4D-0993 [2] RING  
11. 2H-6184 [1] SEAL  
12. 001-9440 [1] CONNECTOR  
13. 7D-1782 [1] TUBE ASSEM.  
14. 7D-1774 [2] CLAMP  
15. 2K-6061 [2] SCREW  
  1D-4717 [2] NUT  
16. 3B-4506 [4] LOCKWASHER  
17. 7D-8543 [1] BOX ASSEM.  
  5D-8412 [4] SCREW  
18. 7K-0899 [1] GROMMET  
19. 7D-8769 [1] SWITCH  
20. 6L-9781 [1] CONNECTOR  
21. 8D-6992 [1] HOSE ASSEM. (76" long overall)  
22. 3S-2093 [8] TIE  
23. 9D-0657 [1] HOSE ASSEM. (67 in. long)  
24. 7D-9769 [1] HOSE ASSEM. (32" long overall)  
25. 4D-6988 [1] CLIP  
26. 7D-9771 [1] HOSE ASSEM. (84" long overall)  
27. 5B-8978 [1] TEE  
28. 7D-8793 [1] ELBOW  
29. 7B-3235 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
30. 1P-9962 [1] PLATE  
31. 4B-4158 [4] SCREW  
32. 7D-7248 [1] BRACKET ASSEM.  
33. 2A-4639 [2] BOLT  
34. 030-7946 [1] ELBOW  
  3J-7354 [1] SEAL  
35. 7D-9766 [2] BOLT  
  7D-9751 [2] SPACER  
36. 8D-2413 H [1] CYLINDER ASSEM.  
37. 7D-7291 [1] RETAINER ASSEM.  
38. 7D-2148 [1] BOOT  
39. 5B-1909 [1] ROD  
40. 9M-6020 [1] PIN  
  3B-4618 [1] COTTER PIN  
41. 7D-9392 [1] LEVER  
42. 7D-7173 [1] SUPPORT  
43. 2R-6806 [1] CONNECTOR  
  3J-1907 [1] SEAL  
44. 7D-9844 [1] HOSE ASSEM. (33 in. long)  
    H -THE FOLLOWING REPAIR KIT IS AVAILABLE:
  8D-3213 [1] KIT (Seal)  
    (For 8D2413 Cylinder)
  Y   SEPARATE ILLUSTRATION
 

#UEG0756S0108
 

8D-2490: BRAKE CONTROL GROUP

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 3 of 4-Type 2
AN ATTACHMENT
c118752 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-7411 [1] WIRE ASSEM.  
  4S-8787 H WIRE 4 in.  
  4L-3916 [1] TERMINAL  
2. 7F-9224 [1] TERMINAL  
3. 6D-7464 [1] PLATE  
4. 5D-0019 [1] BULB  
5. 4D-9981 [1] LENS  
6. 7D-7388 [1] SOCKET AND WIRE ASSEM.  
7. 4S-1988 [1] TERMINAL  
8. 4D-9982 [1] SPRING  
9. 5D-9247 [1] BRACKET ASSEM.  
10. 4F-3597 [1] SCREW  
  4B-2043 [1] NUT  
11. 7D-2514 [1] CONDUIT  
12. 4K-8302 [2] CLIP  
13. 0S-1595 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
14. 1M-1993 [2] SPACER  
15. 7D-8703 [1] WIRE ASSEM.  
  4S-8787 H WIRE 41 in.  
16. 4S-1988 [1] TERMINAL  
17. 4L-3916 [1] TERMINAL  
18. 8M-2772 [2] CLIP  
19. 8D-3652 C [1] WIRE ASSEM.  
  4S-8787 H WIRE 6 in.  
  6D-9404 [1] TERMINAL  
20. 4S-1988 [1] TERMINAL  
21. 8D-3653 C [1] WIRE ASSEM.  
  4S-8787 H WIRE 6 in.  
  6D-9404 [1] TERMINAL  
22. 4L-3916 [1] TERMINAL  
23. 9D-0174 C [1] HARNESS ASSEM.  
  4S-8787 H WIRE 210 in.  
24. 4L-3916 [1] TERMINAL  
25. 4S-1988 [1] TERMINAL  
26. 7F-9224 [2] TERMINAL  
  C   INDICATES CHANGE
  H   ORDER BY THE FOOT
 

#UEG0756S0109
 

8D-2490: BRAKE CONTROL GROUP

8D2490 PARKING AND EMERGENCY BRAKE CONTROL GROUP-Part 4 of 4-Type 2
AN ATTACHMENT
c118899 UEG0756S
  For full view, you need register

Parts for your 12F MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7F-8092 [1] KNOB  
2. 8D-8338 [1] LEVER ASSEM.  
  5H-6188 [1] BUSHING  
3. [1] BRACKET  
4. 8D-2227 [1] LEVER ASSEM.  
  5H-3895 [1] BUSHING  
5. 8D-2226 [1] LEVER ASSEM.  
  5H-6188 [1] BUSHING  
6. 7D-9374 [3] SPACER  
7. 8D-2222 [1] PIN  
8. 9S-1303 [4] PIN  
  3B-4609 [4] COTTER PIN  
9. 8D-2223 [1] YOKE  
10. 7M-8426 [1] SPRING  
11. 0S-1590 [2] BOLT  
12. 1D-4717 [5] NUT  
  3B-4506 [5] LOCKWASHER  
13. 8D-2331 [1] RETAINER  
14. 3S-3018 [1] SPRING (outer)  
15. 5K-2400 [1] SPRING (inner)  
16. 3D-5878 [2] YOKE  
  1A-8285 [3] NUT  
17. 2B-2694 [2] BOLT  
  1D-4716 [2] NUT  
  3B-4505 [2] LOCKWASHER  
18. 8D-2356 [1] PLATE ASSEM.  
19. 8D-2342 [1] RETAINER  
20. 8D-2333 [1] COVER ASSEM.  
21. 0S-1595 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
22. 8D-5903 [1] BLOCK  
23. 3D-6649 [2] CLAMP  
24. 8D-2328 [1] CABLE ASSEM.  
25. 8D-2225 [1] PIN ASSEM.  
  5H-6188 [1] BUSHING  
26. 0L-2070 [1] BOLT  
  9L-9132 [1] WASHER  
27. 6D-6768 [1] BLOCK  
28. 8D-2218 [1] PLATE  
29. 3B-1915 [2] BOLT  
 

Information:

Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Bench Test Procedures
Service Magazine

Caterpillar Parts SIS Catalog 12F :

Truck sale:

149.800 
Caterpillar 312F, Raupenbagger, Bau-Und Bergbauausrüstung
- Crawler excavators
YANCEY BROS. CO.
13,000 
Caterpillar 12F, Construction
- motor graders
ALTORFER INC.
159,900 
Caterpillar 312F GC, Construction
- Crawler Excavators
N C MACHINERY CO.
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