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3N9411 AIR STARTING MOTOR GROUP Part of 3N9574 and 3N9572 Air Starting Motor Groups shown on Pages 73A, 73D, 73S and 73U G399


ELECTRICAL AND STARTING SYSTEM
STARTING MOTOR GP

GAS ENGINE G399 GAS ENGINE 49C
 G399 ENGINE 49C00001-00260 UEG0038S G399 49C   (1968)

ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9411 STARTING MOTOR GP-AIR
MOTOR GP-AIR STARTING
3N-9412 MOTOR GP-AIR STARTING
STARTING MOTOR GP-AIR
3N-9413 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9414 STARTING MOTOR GP-AIR
 

#UEG0038S0240
 

3N-9411: STARTING MOTOR GP-AIR

3N9411 AIR STARTING MOTOR GROUP
Part of 3N9574 and 3N9572 Air Starting Motor Groups shown on Pages 73A, 73D, 73S and 73U
c210808 UEG0038S
3N9411 STARTING MOTOR GP-AIR Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2H-3776 [1] NUT  
  2H-3779 [1] LOCK  
2. 6N-7547 [1] WASHER  
3. 2L-2094 [2] BEARING  
4. 6N-7545 [2] SPACER  
5. 6N-7540 [2] PLATE  
6. 6N-7537 [1] CYLINDER  
7. 6N-7536 [4] RETAINER  
8. 6N-7534 [1] ROTOR  
9. 6N-7538 [1] DOWEL  
10. 4S-5565 [2] BOLT  
11. 3B-4506 [16] LOCKWASHER  
12. 6N-7571 [1] WASHER  
13. 6N-7581 [1] GEAR (31 teeth)  
14. 2L-5271 [1] BEARING  
15. 6L-5897 [18] BOLT  
  8J-2418 [18] LOCKWASHER  
16. 052-0512 C [2] RETAINER  
17. 4N-4402 [1] SPACER  
18. 4N-4400 [2] RING  
19. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
20. 4N-4399 [1] RING  
21. 4N-4403 [1] SPRING  
22. 4N-4404 [1] SEAT  
23. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
24. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
25. 4N-4407 [1] BUSHING  
26. 6N-7542 [1] SHAFT  
  6L-8794 [1] KEY  
27. 4N-4405 [1] DRIVE ASSEM.  
28. 0S-1616 [16] BOLT  
  3B-4504 [16] LOCKWASHER  
29. 6N-7362 [1] COVER  
30. 6N-7544 [1] GEAR (pinion 11 teeth)  
31. 6N-7535 [1] RETAINER  
32. 6N-7570 [2] SCREW  
  6N-7572 [2] LOCKWASHER  
33. 6N-7532 [1] CASE ASSEM.  
    (Includes)
34. 7B-5670 [1] BEARING  
35. 0S-1591 [6] BOLT  
  1D-4717 [6] NUT  
36. 6N-7543 [1] HOUSING  
37. 1A-2029 [8] BOLT  
38. 6N-7541 [1] COVER ASSEM.  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-7533 [1] KIT (Rotor Vane)  
    (Includes 5 Vanes)
  6N-7363 [1] KIT (Seal and Gasket)  
    (Includes 3 Seals and 5 Gaskets)
  C   INDICATES CHANGE
 

#UEG0038S0241
 

3N-9412: MOTOR GP-AIR STARTING

3N9412 AIR STARTING MOTOR GROUP
Part of 3N9575 and 3N9573 Air Starting Motor Groups shown on Pages 73H, 73K, 73M and 73Z-1
c156568 UEG0038S
3N9412 MOTOR GP-AIR STARTING Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2H-3776 [1] NUT  
  2H-3779 [1] LOCK  
2. 6N-7547 [1] WASHER  
3. 2L-2094 [2] BEARING  
4. 6N-7545 [2] SPACER  
5. 6N-7540 [2] PLATE  
6. 6N-7537 [1] CYLINDER  
7. 6N-7536 [4] RETAINER  
8. 6N-7534 [1] ROTOR  
9. 6N-7538 [1] DOWEL  
10. 4S-5565 [2] BOLT  
11. 3B-4506 [16] LOCKWASHER  
12. 6N-7571 [1] WASHER  
13. 6N-7581 [1] GEAR (31 teeth)  
14. 2L-5271 [1] BEARING  
15. 6L-5897 [18] BOLT  
  8J-2418 [18] LOCKWASHER  
16. 2Y-1415 [2] RETAINER  
17. 4N-4402 [1] SPACER  
18. 4N-4400 [2] RING  
19. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
20. 4N-4399 [1] RING  
21. 4N-4403 [1] SPRING  
22. 4N-4404 [1] SEAT  
23. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
24. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
25. 4N-4407 [1] BUSHING  
26. 6N-7542 [1] SHAFT  
  6L-8794 [1] KEY  
27. 4N-9569 [1] DRIVE ASSEM.  
28. 0S-1616 [16] BOLT  
  3B-4504 [16] LOCKWASHER  
29. 6N-7362 [1] COVER  
30. 6N-7544 [1] PINION  
31. 6N-7535 [1] RETAINER  
32. 6N-7570 [2] SCREW  
  6N-7572 [2] LOCKWASHER  
33. 6N-7532 [1] CASE ASSEM.  
    (Includes)
34. 7B-5670 [1] BEARING  
35. 0S-1591 [6] BOLT  
  1D-4717 [6] NUT  
36. 6N-7543 [1] HOUSING  
37. 1A-2029 [8] BOLT  
38. 6N-7541 [1] COVER ASSEM.  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-7533 [1] KIT (Rotor Vane)  
    (Includes 5 Vanes)
  6N-7363 [1] KIT (Seal and Gasket)  
    (Includes 3 seals and 5 gaskets)
 

#UEG0038S0242
 

3N-9413: STARTING MOTOR GP-AIR

3N9413 AIR STARTING MOTOR GROUP
Part of 3N9568 and 3N9570 Air Starting Motor Groups shown on Pages 69A-4, 69A-6, 73N and 73Q
c156569 UEG0038S
3N9413 STARTING MOTOR GP-AIR Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2H-3776 [1] NUT  
  2H-3779 [1] LOCK  
2. 6N-7547 [1] WASHER  
3. 2L-2094 [2] BEARING  
4. 6N-7545 [2] SPACER  
5. 6N-7540 [2] PLATE  
6. 6N-7537 [1] CYLINDER  
7. 6N-7536 [4] RETAINER  
8. 6N-7534 [1] ROTOR  
9. 6N-7538 [1] DOWEL  
10. 4S-5565 [2] BOLT  
11. 3B-4506 [16] LOCKWASHER  
12. 6N-7571 [1] WASHER  
13. 6N-7581 [1] GEAR (31 teeth)  
14. 2L-5271 [1] BEARING  
15. 6L-5897 [18] BOLT  
  8J-2418 [18] LOCKWASHER  
16. 2Y-1415 [2] RETAINER  
17. 4N-4402 [1] SPACER  
18. 4N-4400 [2] RING  
19. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
20. 4N-4399 [1] RING  
21. 4N-4403 [1] SPRING  
22. 4N-4404 [1] SEAT  
23. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
24. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
25. 4N-4407 [1] BUSHING  
26. 6N-7542 [1] SHAFT  
  6L-8794 [1] KEY  
27. 4N-4405 [1] DRIVE ASSEM.  
28. 0S-1616 [16] BOLT  
  3B-4504 [16] LOCKWASHER  
29. 6N-7362 [1] COVER  
30. 6N-7544 [1] PINION  
31. 6N-7535 [1] RETAINER  
32. 6N-7570 [2] SCREW  
  6N-7572 [2] LOCKWASHER  
33. 6N-7532 [1] CASE ASSEM.  
    (Includes)
34. 7B-5670 [1] BEARING  
35. 0S-1591 [6] BOLT  
  1D-4717 [6] NUT  
36. 6N-7543 [1] HOUSING  
37. 1A-2029 [8] BOLT  
38. 6N-7541 [1] COVER ASSEM.  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-7533 [1] KIT (Rotor Vane)  
    (Includes 5 Vanes)
  6N-7363 [1] KIT (Seal and Gasket)  
    (Includes 3 Seals and 5 Gaskets)
 

#UEG0038S0243
 

3N-9414: STARTING MOTOR GP-AIR

3N9414 AIR STARTING MOTOR GROUP
Part of 3N9569 and 3N9571 Air Starting Motor Groups shown on Pages 69A-8, 69A-12, 73W and 73Y
c156570 UEG0038S
3N9414 STARTING MOTOR GP-AIR Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2H-3776 [1] NUT  
  2H-3779 [1] LOCK  
2. 6N-7547 [1] WASHER  
3. 2L-2094 [2] BEARING  
4. 6N-7545 [2] SPACER  
5. 6N-7540 [2] PLATE  
6. 6N-7537 [1] CYLINDER  
7. 6N-7536 [4] RETAINER  
8. 6N-7534 [1] ROTOR  
9. 6N-7538 [1] DOWEL  
10. 4S-5565 [2] BOLT  
11. 3B-4506 [16] LOCKWASHER  
12. 6N-7571 [1] WASHER  
13. 6N-7581 [1] GEAR (31 teeth)  
14. 2L-5271 [1] BEARING  
15. 6L-5897 [18] BOLT  
  8J-2418 [18] LOCKWASHER  
16. 2Y-1415 [2] RETAINER  
17. 4N-4402 [1] SPACER  
18. 4N-4400 [2] RING  
19. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
20. 4N-4399 [1] RING  
21. 4N-4403 [1] SPRING  
22. 4N-4404 [1] SEAT  
23. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
24. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
25. 4N-4407 [1] BUSHING  
26. 6N-7542 [1] SHAFT  
  6L-8794 [1] KEY  
27. 4N-9569 [1] DRIVE ASSEM.  
28. 0S-1616 [16] BOLT  
  3B-4504 [16] LOCKWASHER  
29. 6N-7362 [1] COVER  
30. 6N-7544 [1] PINION  
31. 6N-7535 [1] RETAINER  
32. 6N-7570 [2] SCREW  
  6N-7572 [2] LOCKWASHER  
33. 6N-7532 [1] CASE ASSEM.  
    (Includes)
34. 7B-5670 [1] BEARING  
35. 0S-1591 [6] BOLT  
  1D-4717 [6] NUT  
36. 6N-7543 [1] HOUSING  
37. 1A-2029 [8] BOLT  
38. 6N-7541 [1] COVER ASSEM.  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-7533 [1] KIT (Rotor Vane)  
    (Includes 5 Vanes)
  6N-7363 [1] KIT (Seal and Gasket)  
    (Includes 3 seals and 5 gaskets)
 

#UEG0038S0244
 

6L-6731: MOTOR AS-AIR

6L6731 MOTOR ASSEMBLY--S.A.E. Standard Engine Rotation
Part of 7L6914, 7L6916, 8L8409 and 8L8410 Air Motors shown on Pages 66, 66A,
70, 70A, 70B and 71
6L6730 MOTOR ASSEMBLY--S.A.E. Opposite Standard Engine Rotation
Part of 3N967, 7L6913, 3N969, 7L6915, 8L8411 and 8L8412 Air Motors shown on
Pages 66C, 66C-2, 68, 68B, 68C-1, 69, 72, 72A and 73
3H3171 & 3H3170 Air Motor parts are shown on Pages 75 & 76
c107049 UEG0038S
6L6731 MOTOR AS-AIR Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-3170 [1] MOTOR  
    (SAE OPPOSITE STANDARD ENGINE ROTATION)
    -OR-
  3H-3171 Y [1] MOTOR  
    (SAE STANDARD ENGINE ROTATION)
    (SEE SEPARATE ILLUSTRATION)
  5K-1770 [1] SEAL  
  0S-1618 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  9F-7216 [1] SCREW  
  9F-7215 [1] RING  
  7F-5452 [1] SPRING  
  4B-1273 [1] SCREW  
    (PARTS OF 1L7398 AND 1L7340 ASSEM.)
  1N-8063 [1] CAP  
  1N-8062 [1] BEARING  
    (PARTS OF 5L5507 ASSEM.)
  1L-7398 [1] DRIVE ASSEM. (BENDIX)  
    (SAE OPPOSITE STANDARD ENGINE ROTATION)
    -OR-
  1L-7340 [1] DRIVE ASSEM. (BENDIX)  
    (SAE STANDARD ENGINE ROTATION)
  5L-5507 [1] HOUSING ASSEM.  
  Y   SEPARATE ILLUSTRATION
 

#UEG0038S0245
 

3H-3171: LUG

3H3171 AIR MOTOR--Type 2
Part of 6L6731 Motor Assembly
c132941 UEG0038S
3H3171 LUG Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7L-7465 [5] VANE  
  7F-5143 [1] ROTOR  
  7F-5136 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (437" THICK)  
  7F-5139 [1] DOWEL (.50" THICK)  
  2F-4547 [2] DOWEL (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5136)
  3H-1660 [2] RING  
  7F-5421 [2] SHIM (.002" THICK)  
  7F-5422 [2] SHIM (.003" THICK)  
  7F-5423 [1] SHIM (.005" THICK)  
  4B-4731 [1] BEARING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5156 [1] GASKET  
  7F-9504 [3] PLUG  
  2B-2695 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  2L-6221 [1] COVER  
  4B-3388 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  2N-7608 [1] HOUSING  
  2N-7609 [1] BEARING  
  2L-6220 [1] HOUSING  
  007-5157 [1] GASKET  
  7F-5164 [7] BOLT  
  3B-4505 [7] LOCKWASHER  
  6L-6705 [1] COVER  
  0S-1614 [3] BOLT  
  3B-4504 [3] LOCKWASHER  
  7F-5158 [1] PLATE  
  1B-8710 [2] KEY  
  7F-5151 [1] SHAFT  
  7F-5153 [1] BEARING  
  7F-5149 [1] GEAR  
  7F-5162 [1] NUT  
  7F-5161 [1] LOCKWASHER  
  7F-5152 [1] RING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5148 [1] GEAR  
  5B-1975 [1] BEARING ASSEM.  
  5B-1974 [1] RACE  
  7F-5141 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.437" DIA.)  
  7F-5139 [1] DOWEL (.50" DIA.)  
  2F-4547 [2] DOWEL (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5141)
  1B-2719 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5160 [1] GASKET  
 

#UEG0038S0246
 

4N-6019: CHANGEOVER GP

4N6019 AIR START CHANGEOVER GROUP--S.A.E. Opposite Standard Engine Rotation--Field Installation
FOR USE WITH 6L6730 MOTOR ASSEMBLY SHOWN ON PAGE 74
c149287 UEG0038S
4N6019 CHANGEOVER GP Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-9566 [1] SHAFT  
2. 4N-9567 [1] KEY  
3. 9F-5975 [8] BOLT  
4. 6H-3977 [1] SEAL  
5. 8F-8882 [1] SEAL  
6. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
7. 4N-4399 [1] RING  
8. 4N-4404 [1] SEAT  
9. 4N-9569 [1] CLUTCH ASSEM.  
10. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
11. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
12. 4N-4407 [1] BUSHING  
13. 4N-4403 [1] SPRING  
14. 4N-4400 [1] RING  
15. 4N-4402 [1] SPACER  
16. 052-0512 [1] RETAINER  
17. 0S-1616 [12] BOLT  
  3B-4504 [12] LOCKWASHER  
18. 4N-9565 [1] COVER  
19. 4N-3411 [1] VALVE  
20. 4N-3410 [1] VALVE  
21. 4N-4393 [1] SEAL  
22. 4N-9568 [1] GEAR (drive 30 teeth)  
 

#UEG0038S0247
 

4N-4985: CHANGEOVER GP

4N4985 AIR START CHANGEOVER GROUP--S.A.E. Standard Engine Rotation--Field Installation
FOR USE WITH 6L6731 MOTOR ASSEMBLY SHOWN ON PAGE 74
c149286 UEG0038S
4N4985 CHANGEOVER GP Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-9566 [1] SHAFT  
2. 4N-9567 [1] KEY  
3. 9F-5975 [8] BOLT  
4. 6H-3977 [1] SEAL  
5. 8F-8882 [1] SEAL  
6. 4N-4398 [1] PISTON ASSEM.  
    (Includes)
7. 4N-4399 [1] RING  
8. 4N-4404 [1] SEAT  
9. 4N-4405 [1] CLUTCH ASSEM.  
10. 4N-4406 [1] HOUSING ASSEM.  
    (Includes)
11. 2B-4602 [1] PLUG  
  4N-4408 [1] OILER  
12. 4N-4407 [1] BUSHING  
13. 4N-4403 [1] SPRING  
14. 4N-4400 [1] RING  
15. 4N-4402 [1] SPACER  
16. 052-0512 [1] RETAINER  
17. 0S-1616 [12] BOLT  
  3B-4504 [12] LOCKWASHER  
18. 4N-9565 [1] COVER  
19. 4N-3411 [1] VALVE  
20. 4N-3410 [1] VALVE  
21. 4N-4393 [1] SEAL  
22. 4N-9568 [1] GEAR (drive-30 teeth)  
 

#UEG0038S0248
 

3H-3171: LUG

3H3171 AIR MOTOR ASSEMBLY--Type 1
Part of 6L6731 Motor Assembly shown on Page 74
c100806 UEG0038S
3H3171 LUG Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7L-7465 [5] VANE  
  7F-5143 [1] ROTOR  
  7F-5136 [1] PLATE ASSEM  
  7F-5138 [1] DOWEL (.437" THICK)  
  7F-5139 [1] DOWEL (.50" THICK)  
  2F-4547 [4] DOWEL (.25" DIA)  
    (PARTS OF PLATE ASSEM 7F5136)
  3H-1660 [2] RING  
  7F-5421 [2] SHIM (.002" THICK)  
  7F-5422 [2] SHIM (.003" THICK)  
  7F-5423 [1] SHIM (.005" THICK)  
  4B-4731 [1] BEARING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5156 [1] GASKET  
  7F-9504 [3] PLUG  
  2B-2695 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  2L-6221 [1] COVER  
  4B-3388 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5145 [1] HOUSING  
  7F-6284 [1] RACE  
  7F-6283 [1] BEARING  
  2L-6220 [1] HOUSING  
  7F-5157 [1] GASKET  
  7F-5171 [1] WASHER  
  7F-5159 [1] RING  
  7F-5164 [7] BOLT  
  3B-4505 [7] LOCKWASHER  
  6L-6705 [1] COVER  
  0S-1614 [3] BOLT  
  3B-4504 [3] LOCKWASHER  
  7F-5158 [1] PLATE  
  1B-8710 [2] KEY  
  7F-5151 [1] SHAFT  
  7F-5153 [1] BEARING  
  7F-5149 [1] GEAR  
  7F-5162 [1] NUT  
  7F-5161 [1] LOCKWASHER  
  7F-5152 [1] RING  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5148 [1] GEAR  
  5B-1975 [1] BEARING ASSEM.  
  5B-1974 [1] RACE  
  7F-5141 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.437" DIA.)  
  7F-5139 [1] DOWEL (.50" DIA.)  
  2F-4547 [4] DOWEL (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5141)
  1B-2719 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5160 [1] GASKET  
 

#UEG0038S0249
 

3H-3170: MOTOR GP-AIR STARTING

3H3170 AIR MOTOR ASSEMBLY
Part of 6L6730 Motor Assembly shown on Page 74
c104613 UEG0038S
3H3170 MOTOR GP-AIR STARTING Parts scheme
  For full view, you need register

Parts for your G399 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2L-6220 [1] HOUSING  
  2F-0808 [4] SCREW  
  7F-5143 [1] ROTOR  
  7L-7465 [5] VANE  
  7F-5136 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.43" DIA.)  
  7F-5139 [1] DOWEL (50" DIA.)  
  2F-4547 [4] PIN (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5136)
  3H-1660 [1] RING  
  4B-4731 [1] BEARING  
  7F-9504 [3] PLUG (D)  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  7F-5421 [2] SHIM (.002")  
  7F-5422 [2] SHIM (.003")  
  7F-5423 [1] SHIM (.005")  
  2B-2695 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  2L-6221 [1] COVER  
  7F-5156 [1] GASKET  
  4B-3388 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5149 [1] GEAR  
  7F-6284 [1] RACE  
  7F-6283 [1] BEARING ASSEM.  
  7F-5157 [1] GASKET  
  6L-6705 [1] COVER  
  7F-5164 [7] BOLT  
  3B-4505 [7] LOCKWASHER  
  7F-5158 [1] PLATE  
  0S-1614 [3] BOLT  
  3B-4504 [3] LOCKWASHER  
  7F-5153 [1] BEARING  
  1B-8710 [2] KEY  
  7F-5151 [1] SHAFT  
  7F-5162 [1] NUT  
  7F-5161 [1] LOCKWASHER  
  7F-5159 [1] RING  
  7F-5171 [1] WASHER  
  7F-5154 [1] NUT  
  7F-5155 [1] LOCKWASHER  
  5B-1975 [1] BEARING ASSEM.  
  7F-5152 [1] RING  
  7F-5148 [1] GEAR  
  5B-1974 [1] RACE  
  3H-1660 [1] RING  
  7F-5160 [1] GASKET  
  7F-5141 [1] PLATE ASSEM.  
  7F-5138 [1] DOWEL (.43" DIA.)  
  7F-5139 [1] DOWEL (50" DIA.)  
  2F-4547 [4] PIN (.25" DIA.)  
    (PARTS OF PLATE ASSEM. 7F5141)
  1B-2719 [6] BOLT  
  3B-4505 [8] LOCKWASHER  
  7F-5145 [1] HOUSING  
 

Information:

General Service Information
Introduction
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Delco Remy
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Engine News
New Air Starting Motor Group Available
1982/08/25
New Air Starting Motor Has A Slip-Clutch Type Drive Gear
1983/10/26
Bypass Valve Can Be Installed To Keep Prelubrication Oil At The Correct Level
1984/04/11
12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors
1987/02/01
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts
1987/03/01
Testing The Starter On The Engine
1987/05/01
Remanufactured Heavy-Duty Starters And High-Amp Alternators
1987/06/01
Be Sure Battery Cable To Starter Connection Has Correct Torque
1988/03/01
Magnetic Switches (Starter Relays) Improved
1988/03/01
Air Starter Relay Valve Improved
1991/07/01
Improved Remanufactured Electric Starting Motors are Now Available {1453}
2003/11/01
Special Instruction
Installation of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
Solenoid (Starting Motor) &minus; Replace{1467}
Solenoid (Starting Motor) − Replace{1467}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Replace Armature of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Armature of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat® Products {1453}
Specifications
Air Valves For Air Starting System
6.25" BORE ENGINE ATTACHMENTS
Air Starting Motors<BR> (3H3170, 3H3171)
6.25" BORE ENGINE ATTACHMENTS
Starter Motor
G379, G398 & G399 ENGINES
Starter Solenoids
G379, G398 & G399 ENGINES
Starting Motor
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor
Starting Motor - Delco 50-MT
Systems Operation
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
37-MT, 41-MT, and 42-MT Series Starting Motors
Normal Operation
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
Starting Motor - Delco 50-MT
General Information
Starting Motor - Delco 50-MT
Normal Operation
Starting Motor - Delco 50-MT
Testing and Adjusting
No Load - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Brush and Brush Holder - Check
37-MT, 41-MT, and 42-MT Series Starting Motors
Pinion Clearance - Adjust
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Solenoid - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Solenoid - Test
Starting Motor - Delco 50-MT
Field Winding - Test
Starting Motor - Delco 50-MT
Armature - Test
Starting Motor - Delco 50-MT
Brush and Brush Holder - Check
Starting Motor - Delco 50-MT
Pinion Drive - Check
Starting Motor - Delco 50-MT
No Load - Test
Starting Motor - Delco 50-MT
Pinion Clearance - Adjust
Starting Motor - Delco 50-MT
Troubleshooting
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Does Not Turn or Turns Slowly
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Pinion Does Not Engage Ring Gear
Starting Motor - Delco 50-MT
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
Starting Motor - Delco 50-MT
Starting Motor Continues to Operate after Start Switch Has Been Released
Starting Motor - Delco 50-MT
Pinion Continues to Engage after Engine Starts
Starting Motor - Delco 50-MT
Starting Motor Does Not Turn or Turns Slowly
Starting Motor - Delco 50-MT
Disassembly and Assembly
Air Starting Motor
6.25" BORE ENGINE ATTACHMENTS
Electric Starting Motors
G379, G398 & G399 ENGINES
Starting Motor - Disassemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Disassemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Starting Motor - Disassemble
Starting Motor - Delco 50-MT
Starting Motor - Assemble
Starting Motor - Delco 50-MT
Service Magazine
Replacement Of Brush Holder Pins In Delco-Remy Electric Starting Motors{1453}
1982/06/28
New Air Starting Motor Group Available{1451}
1982/07/19
New Air Starting Motor Has A Slip-Clutch Type Drive Gear{1451}
1983/10/17
Bypass Valve Can Be Installed To Keep Prelubrication Oil At The Correct Level{1319}
1984/04/09
New Start Switch Used {1416,1453}
1986/07/07
Adjust Bosch Solenoid If Replaced Or Reinstalled{1407,1453}
1986/11/10
12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors{1407}
1987/02/16
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
Testing The Starter On The Engine{1401,1450}
1987/05/04
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Be Sure Battery Cable-To-Starter Connection Has Correct Torque{1453}
1988/03/14
Magnetic Switches (Starter Relays) Improved{1450}
1988/03/14
Two Plug Assemblies (Booster Cables) Are Available To Start Machines{1401,1453}
1979/11/05
Limitations On Engine Cranking Time{1453,1401}
1989/03/27
Causes And Effects Of Low Battery Voltage On Electric Starters{1401,1453,1467}
1989/04/24
Air Starter Relay Valve Improved{1462}
1991/06/24

Caterpillar Parts SIS Catalog G399 :

STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9573 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9571 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9571 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9571 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9571 STARTING MOTOR GP-AIR
MOTOR GP-AIR STARTING
3N-9412 MOTOR GP-AIR STARTING
STARTING MOTOR GP-AIR
3N-9413 STARTING MOTOR GP-AIR
STARTING MOTOR GP-AIR
3N-9414 STARTING MOTOR GP-AIR
MOTOR AS-AIR
6L-6731 MOTOR AS-AIR
LUG
3H-3171 LUG
CHANGEOVER GP
4N-6019 CHANGEOVER GP
CHANGEOVER GP
4N-4985 CHANGEOVER GP
LUG
3H-3171 LUG

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