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8S590 RANGE TRANSMISSION ARRANGEMENT Effective with Serial No. 49W1-UP Planetary Transmission, Transfer Gear, 8M8551 Relief Valve and Hydraulic Control parts are shown on Pages 104 thru 108A D6C


POWER TRAIN
TRANSMISSION GP
GEAR GP
HYDRAULIC SYSTEM
VALVE GP-RELIEF
POWER TRAIN
CONTROL GP-TRANSMISSION HYD
VALVE GP-PRESSURE CONTROL
VALVE GP-SELECTOR
VALVE GP-PRESSURE CONTROL

TRACK-TYPE TRACTOR D6C TRACK-TYPE TRACTOR 49W
 D6C LGP TRACTOR / POWERSHIFT / 49W00001-UP (MACHINE) POWERED BY 3306 ENGINE XMBP9769 D6C 49W   (1975)

POWER TRAIN

TRANSMISSION GP
RANGE TRANSMISSION ARRANGEMENT
8S-0590 RANGE TRANSMISSION ARRANGEMENT
PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
 

#XMBP97690210
 

8S-0590: RANGE TRANSMISSION ARRANGEMENT

8S590 RANGE TRANSMISSION ARRANGEMENT
Effective with Serial No. 49W1-UP
Planetary Transmission, Transfer Gear, 8M8551 Relief Valve and Hydraulic Control parts are
shown on Pages 104 thru 108A
j6705e XMBP9769
8S0590 RANGE TRANSMISSION ARRANGEMENT Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1594 [14] BOLT  
  3B-4506 [14] LOCKWASHER  
  9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
  5M-9653 [1] COVER  
  5M-9654 [1] GASKET  
  1D-4717 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  7M-7794 [4] STUD  
    (PART OF COVER ASSEM 9M2053)
  8H-8175 [2] BEARING  
  1M-3833 [2] DOWEL  
    (Parts of 1P4459 Case Assem.)
  Y [1] PLANETARY TRANSMISSION  
    (SEE SEPARATE ILLUSTRATION)
  Y [1] TRANSFER GEARS  
    (SEE SEPARATE ILLUSTRATION)
  9M-2053 [1] COVER ASSEM.  
  2S-6548 [1] FITTING  
    (PART OF COVER ASSEM. 9M2053)
  9M-2051 [1] GASKET  
  1P-4459 [1] CASE ASSEM  
  5M-1932 [3] STUD  
  8H-8175 [2] BEARING  
  3B-0623 [1] PLUG  
    (Parts of 1P4459 Case Assem.)
  Y [1] TRANSMISSION HYDRAULIC CONTROL  
    (SEE SEPARATE ILLUSTRATION)
  2S-0486 [1] SLEEVE  
  3B-1915 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  8M-8621 [1] GASKET  
  8M-4437 [2] SEAL  
  8M-8551 Y [1] VALVE GROUP  
    (SEE SEPARATE ILLUSTRATION)
  0S-1619 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  8M-4437 [1] SEAL  
  2S-4957 [1] SLEEVE  
  Y   SEPARATE ILLUSTRATION
 

#XMBP97690211
 

9M-2040: PLANETARY TRANSMISSION

PLANETARY TRANSMISSION (9M2040 N/S)--Part 1 of 2
Effective with Serial No. 49W1-UP
Part of 8S590 Range Transmission Arrangement
j11173e XMBP9769
9M2040 PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5M-7923 [1] SHAFT  
2. 1M-8652 [1] RING  
3. 9M-1503 [2] RING  
4. 9M-1500 [3] SHAFT  
5. 5M-6126 [21] ROLLER ASSEM.  
6. 7M-5731 [42] WASHER  
7. 8M-8645 [1] PLATE  
  7M-8479 [1] DOWEL (50.8mm Long)  
  7M-8480 [1] DOWEL (31.8mm Long)  
8. 5M-6141 [4] RING  
9. 8M-8650 [4] PISTON  
10. 5M-6132 [5] RING  
11. 5M-6116 [6] GEAR (26 Teeth)  
12. 5M-6211 [3] SHAFT  
13. 5M-7841 [2] GEAR (96 and 80 Teeth)  
14. 8M-8649 [1] PISTON  
15. 5M-2477 [1] PLATE (Transmission No.)  
  7B-3028 [2] SCREW (Drive)  
16. 7M-1177 [1] RING  
17. 8F-6230 [1] SEAL  
18. 1M-0498 [2] RING  
19. 8M-8628 [1] FLANGE  
20. 8M-8623 [1] GEAR (40 Teeth)  
21. 3S-4388 [1] WASHER  
22. 0L-0139 [1] BOLT  
23. 1S-6543 [1] SEAL  
24. 1K-6986 [2] RING  
25. 8M-8619 [1] CAGE  
26. 4S-8718 [1] CAGE  
27. 2D-6642 [12] BALL  
28. 5M-7900 [9] BOLT  
29. 2M-0849 [12] WASHER  
30. 5M-6210 [3] SHAFT  
31. 9M-1990 [5] PIN  
32. 4M-1641 [5] PIN  
33. 0V-0375 [3] BOLT  
34. 0S-1621 [3] BOLT  
  2M-0706 [3] LOCK  
35. 9M-2004 [1] BEARING  
36. 9M-1502 [1] CAGE  
37. 3S-9866 [1] SHAFT ASSEM.  
  9M-2001 [1] DOWEL  
 

#XMBP97690212
 

9M-2040: PLANETARY TRANSMISSION

PLANETARY TRANSMISSION (9M2040 N/S)--Part 2 of 2
Effective with Serial No. 49W1-UP
Part of 8S590 Range Transmission Arrangement
j16455e XMBP9769
9M2040 PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5M-6113 [12] GEAR (20 Teeth)  
2. 0S-0509 [15] BOLT  
3. 9M-1367 [3] LOCK (Two Hole)  
  8M-7640 [3] LOCK (One Hole)  
4. 9M-1501 [3] PLATE  
5. 5M-6119 [3] GEAR (24 Teeth)  
6. 8M-8651 [7] PLATE  
7. 8M-8644 [1] HOUSING  
8. 9M-2049 [2] GEAR (96 and 80 Teeth)  
9. 5M-7869 [1] GEAR (96 and 74 Teeth)  
10. 4S-8708 [1] HOUSING  
  7M-8480 [4] DOWEL  
11. 4M-9592 [30] SPRING  
12. 8M-8642 [1] HOUSING  
13. 4M-1678 [10] SPRING  
14. 9M-2013 [1] HOUSING ASSEM.  
  2D-6642 [2] BALL  
15. 0S-1594 [6] BOLT  
  0S-2414 [3] LOCK  
16. 5M-6212 [3] TUBE  
17. 5M-7936 [1] RACE AND ROLLER ASSEM. (Outer)  
18. 3S-6817 [1] SPACER  
19. 9M-1997 [1] BEARING  
20. 9M-2030 [1] RACE (Inner)  
21. 3S-6931 [1] RING  
22. 9M-2031 [1] RACE AND ROLLER ASSEM. (Outer)  
23. 5M-6120 [1] GEAR (23 Teeth)  
24. 5M-7934 [1] RACE (Inner)  
25. 2M-3974 [1] RING  
26. 5M-7875 [1] CARRIER  
27. 8M-8646 [1] PLATE ASSEM.  
  7M-8479 [2] DOWEL  
  2D-6642 [2] BALL  
28. 1S-6527 [3] PLATE  
29. 8M-8509 [3] LOCK  
30. 9M-1996 [3] SHAFT  
31. 5M-6122 [12] DISC ASSEM.  
32. 9M-1995 [1] GEAR (35 Teeth)  
33. 8M-8677 [1] CARRIER  
 

#XMBP97690213
 

8S-0572: TRANSFER GEAR

TRANSFER GEAR (8S572 N/S)
Effective with Serial No. 49W1-UP
Part of 8S590 Range Transmission Arrangement
j6676e XMBP9769
8S0572 TRANSFER GEAR Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1D-4719 [3] NUT  
  3B-4508 [3] LOCKWASHER  
  4B-9783 [1] BALL  
    (Part of 9M2060 Case Assem.)
  9M-2060 [1] CASE ASSEM.  
  9M-2001 [1] DOWEL  
    (PART OF CASE ASSEM. 9M2060)
  8S-0573 [1] GEAR (32 TEETH)  
  2A-3746 [3] PLUG  
  0S-1594 [4] BOLT  
  1A-5823 [2] LOCK  
  4M-3122 [1] DOWEL  
  9M-2042 [2] RACE (OUTER)  
  1M-4095 [2] INNER RACE AND ROLLER ASSEM.  
  8M-8659 [3] DOWEL  
    (PART OF CASE ASSEM. 9M2060)
  5M-9644 [1] INNER RACE AND ROLLER ASSEM.  
  8H-8024 [1] RING  
  9M-1498 [1] CAGE  
  0S-1594 [2] BOLT  
  9M-1367 [1] LOCK  
  2M-0138 [1] DOWEL (65mm LONG)  
  7M-1154 [1] INNER RACE AND ROLLER ASSEM.  
  4M-3122 [1] DOWEL (38mm LONG)  
  9M-1998 [1] INNER RACE AND ROLLER ASSEM.  
  2S-1437 [1] RACE (OUTER)  
  9M-2045 [1] PINION (17 TEETH)  
  9M-2012 [1] SPACER  
  5M-7339 [1] WASHER  
  9M-1499 [1] RACE (OUTER)  
  8S-0569 [1] GEAR (38 TEETH)  
  0S-1585 [10] BOLT  
  9M-1497 [5] LOCK  
  5M-7329 [1] SEAL  
  9M-2021 [1] GASKET  
  0S-1585 [14] BOLT  
  3B-4508 [14] LOCKWASHER  
 

#XMBP97690214
 

8M-8551: VALVE GP-RELIEF

8M8551 RELIEF VALVE GROUP
Effective with Serial No. 49W1-UP
Part of 8S590 Range Transmission Arrangement
j388e XMBP9769
8M8551 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-7908 [1] PLUG ASSEM.  
  3J-1907 [1] SEAL  
    (PART OF PLUG ASSEM. 5M7908)
  8M-8597 [1] SPRING  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  4M-8815 [1] COVER  
  8M-5254 [1] SEAL  
  8M-8598 [1] SPOOL  
  8M-8599 [1] BODY  
 

#XMBP97690215
 

8M-6350: CONTROL GP-TRANSMISSION HYD

TRANSMISSION HYDRAULIC CONTROL (8M6350 N/S)
Effective with Serial No. 49W1~49W345
Part 8S590 Range Transmission Arrangement
1P9674 and 1P6591 Valve Group parts are shown on Page 109
j10272e XMBP9769
8M6350 CONTROL GP-TRANSMISSION HYD Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4M-8303 [2] SEAL  
2. 2S-5718 [1] SLEEVE  
3. 1P-6591 Y [1] VALVE GROUP (Selector)  
    (See Separate Illustration)
4. 2S-0484 [3] SLEEVE  
  8M-4389 [6] SEAL  
5. 9M-2089 [2] DOWEL  
6. 8M-1040 [2] DETENT ASSEM.  
7. 1M-3833 [1] DOWEL  
8. 1A-1460 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  1D-5117 [2] NUT  
9. 4B-4280 [2] WASHER  
10. 1M-3850 [2] SPACER  
11. 8M-8639 [1] CAM  
12. 9H-0223 [2] SEAL  
13. 7M-5915 [3] PIN  
14. 8M-8652 [1] SHAFT  
15. 5M-2894 [9] WASHER  
16. 1B-4203 [3] NUT  
17. 4M-1768 [2] SPRING  
18. 8M-8653 [1] CAM  
19. 8M-8636 [1] LEVER  
20. 9M-2096 [1] DOWEL  
21. 9M-2020 [1] SHAFT  
22. 1P-9674 Y [1] VALVE GROUP (Pressure)  
    (See Separate Illustration)
23. 8M-4448 [2] SEAL  
24. 0L-2070 [3] BOLT  
25. 8M-4445 [4] SEAL  
26. 0T-0573 [3] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#XMBP97690216
 

8M-6350: CONTROL GP-TRANSMISSION HYD

TRANSMISSION HYDRAULIC CONTROL (8M6350 N/S)
Effective with Serial No. 49W346-UP
Part of 8S590 Range Transmission Arrangement
1P6591 Selector Valve Group and Pressure Control Valve parts are shown on Pages 109
and 109A
j14168e XMBP9769
8M6350 CONTROL GP-TRANSMISSION HYD Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4M-8303 [2] SEAL  
2. 2S-5718 [1] SLEEVE  
3. 1P-6591 Y [1] VALVE GROUP (Selector)  
4. 2S-0484 [3] SLEEVE  
  8M-4389 [6] SEAL  
5. 9M-2089 [2] DOWEL  
6. 8M-1040 [2] DETENT ASSEM.  
7. 1M-3833 [1] DOWEL  
8. 1A-1460 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  1D-5117 [2] NUT  
9. 4B-4280 [2] WASHER  
10. 1M-3850 [2] SPACER  
11. 8M-8639 [1] CAM  
12. 9H-0223 [2] SEAL  
13. 7M-5915 [3] PIN  
14. 8M-8652 [1] SHAFT  
15. 5M-2894 [9] WASHER  
16. 1B-4203 [3] NUT  
17. 4M-1768 [2] SPRING  
18. 8M-8653 [1] CAM  
19. 8M-8636 [1] LEVER  
20. 9M-2096 [1] DOWEL  
21. 9M-2020 [1] SHAFT  
22. 8P-7791 Y [1] VALVE GROUP (Pressure)  
23. 8M-4448 [2] SEAL  
24. 0L-2070 [3] BOLT  
25. 8M-4445 [4] SEAL  
26. 0T-0573 [3] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#XMBP97690217
 

1P-9674: PRESSURE CONTROL VALVE GROUP

1P9674 PRESSURE CONTROL VALVE GROUP
Effective with Serial No. 49W1~49W345
Part of Transmission Hydraulic Control
j10275e XMBP9769
1P9674 PRESSURE CONTROL VALVE GROUP Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8M-4433 [1] SEAL  
2. 0S-1594 [9] BOLT  
3. 5M-2894 [2] WASHER  
4. 1P-9666 [1] COVER  
5. 9M-2025 [1] SPOOL  
6. 2P-5744 [1] SPRING  
7. 5M-7915 [4] SPACER (0.90mm Thick)  
  5M-7914 [3] SPACER (0.25mm Thick)  
8. 8S-9198 [1] PISTON  
9. 8M-5248 [3] SEAL  
10. 9S-2753 [1] COVER  
11. 8S-9197 [1] VALVE  
12. 1P-9665 [1] RETAINER  
13. 6D-3036 [2] DOWEL  
14. 8M-8132 [1] SPRING  
15. 5M-6214 [2] PLUG  
16. 1P-6593 [1] SPOOL ASSEM.  
  1S-2121 [1] PLUNGER  
  2M-8191 [1] RING  
17. 4M-2381 [1] SPRING  
18. 8S-0508 [1] RETAINER  
19. 1P-8573 [1] COVER  
20. 2M-7041 [1] SLUG  
21. 1P-8612 [1] STOP  
  4B-9880 [2] BALL (Not Shown)  
 

#XMBP97690218
 

1P-6591: VALVE GP-SELECTOR

1P6591 SELECTOR VALVE GROUP
Effective with Serial No. 49W1-UP
Part of Transmission Hydraulic Control
j10274e XMBP9769
1P6591 VALVE GP-SELECTOR Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3L-1850 [2] PLUG  
2. 5S-0909 [2] LINK  
3. 2S-5717 [2] NUT  
4. 5M-9567 [1] SPOOL  
5. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
6. 1P-6596 [1] SPOOL  
7. 2D-6642 [1] BALL  
 

#XMBP97690219
 

8P-7791: VALVE GP-PRESSURE CONTROL

PRESSURE CONTROL VALVE (8P7791 N/S)
Effective with Serial No. 49W346-UP
Part of Transmission Hydraulic Control shown on Page 108A
Note: For Field Replacement Order 8P7790 Pressure Control Valve Group shown on Page 109B
c210775 XMBP9769
8P7791 VALVE GP-PRESSURE CONTROL Parts scheme
  For full view, you need register

Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2M-7041 [1] SLUG  
2. 1P-8612 [1] STOP  
3. 9M-2025 [1] SPOOL  
4. 3P-0394 [1] SPRING  
5. 8S-9198 [1] PISTON  
6. 5M-7915 [4] SPACER 0.77 mm(.030 in.) thick  
  5M-7914 [3] SPACER 0.26 mm(.010 in.) thick  
7. 8M-5248 [3] SEAL  
8. 9S-2753 [1] COVER  
9. 3P-0391 [1] VALVE  
10. 1P-9665 [1] RETAINER  
11. 6D-3036 [2] DOWEL  
12. 8M-8132 [1] SPRING  
13. 6P-4711 [1] SPOOL ASSEM.  
    (Includes)
14. 6P-8848 [1] PLUNGER  
15. 9H-2367 [1] SPRING  
16. 6P-4717 [1] SLEEVE  
17. 2M-8191 [1] RING  
18. 1P-8573 [1] COVER  
19. 0S-1594 [7] BOLT  
20. 5M-6214 [2] PLUG  
 

Information:

Caterpillar Parts SIS Catalog D6C :

RELIEF VALVE GROUP
3P-8231 RELIEF VALVE GROUP
VALVE GP-RELIEF
2P-3675 VALVE GP-RELIEF
PUMP GP-SCAVENGE
5M-7864 PUMP GP-SCAVENGE
UNIVERSAL JOINT GP
5M-7882 UNIVERSAL JOINT GP
TORQUE CONVERTER GP
1T-0930 TORQUE CONVERTER GP
5M-5800 TORQUE DIVIDER
TORQUE DIVIDER
5M-5800 TORQUE DIVIDER
TRANSMISSION CONTROL LINKAGE
8M-6640 TRANSMISSION CONTROL LINKAGE
PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
TRANSFER GEAR
8S-0572 TRANSFER GEAR
VALVE GP-RELIEF
8M-8551 VALVE GP-RELIEF
CONTROL GP-TRANSMISSION HYD
8M-6350 CONTROL GP-TRANSMISSION HYD
CONTROL GP-TRANSMISSION HYD
8M-6350 CONTROL GP-TRANSMISSION HYD
PRESSURE CONTROL VALVE GROUP
1P-9674 PRESSURE CONTROL VALVE GROUP
VALVE GP-SELECTOR
1P-6591 VALVE GP-SELECTOR

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