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6J7583 HYDRAULIC TANK AND VALVE GROUP--3 Valve--As Viewed from R.H. Side of Machine--Part 3 of 3 Serial No. 87A2385 to 87A4682 inclusive. Part of 7K582 & 7K583 Hydraulic Arrangements listed on Page 183 5J8281 & 5J4031 Valve parts are shown on Pages 138, 138A, 138B, 138C & 187 988


HYDRAULIC SYSTEM
TANK GP
VALVE GP-CONTROL
VALVE GP-AUXILIARY

WHEEL LOADER 988 WHEEL LOADER 87A
 988 WHEEL LOADER 87A02385-05627 (MACHINE) UEG0028S 988 87A   (1965)

HYDRAULIC SYSTEM

TANK GP
HYDRAULIC TANK AND VALVE GROUP
6J-7583 HYDRAULIC TANK AND VALVE GROUP
6J-7583 HYDRAULIC TANK AND VALVE GROUP
6J-7583 HYDRAULIC TANK AND VALVE GROUP
HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
 

#UEG0028S0690
 

6J-7583: HYDRAULIC TANK AND VALVE GROUP

6J7583 HYDRAULIC TANK AND VALVE GROUP--3 Valve--As Viewed from R.H. Side of Machine--Part 3 of 3
Serial No. 87A2385 to 87A4682 inclusive. Part of 7K582 & 7K583 Hydraulic Arrangements listed on Page 183
5J8281 & 5J4031 Valve parts are shown on Pages 138, 138A, 138B, 138C & 187
c134910 UEG0028S
6J7583 HYDRAULIC TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [56] BOLT  
2. 3B-4506 [58] LOCKWASHER  
3. 5D-7994 [1] JOINT ASSEM.  
4. 6J-7592 [1] COVER ASSEM.  
5. 4K-0519 [1] GASKET  
6. 0S-1592 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
7. 1A-1460 [2] BOLT  
8. 3B-4508 [14] LOCKWASHER  
9. 4J-0523 [1] SEAL  
10. 5F-1678 [1] SEAL  
11. 4K-4663 [1] COVER  
12. 5J-8281 Y [1] CONTROL VALVE GROUP  
    (See Separate Illustration)
13. 2H-3855 [2] BOLT  
14. 2J-7590 [1] COVER  
15. 0S-1585 [2] BOLT  
16. 1H-9696 [1] SEAL  
17. 5J-4031 Y [1] VALVE GROUP (Internal Auxiliary)  
    (See Separate Illustration)
18. 9S-1366 [4] BOLT  
19. 5F-1678 [1] SEAL  
20. 4H-3793 [1] PLUG  
21. 0S-1591 [5] BOLT  
22. 6J-3686 [1] BAFFLE  
23. 4J-5368 [1] TUBE ASSEM.  
24. 4J-0524 [1] SEAL  
25. 6J-9001 [1] TUBE ASSEM.  
26. 3K-8460 [1] PLUG  
27. 1J-9671 [1] SEAL  
28. 5J-1551 [1] SHAFT  
29. 5J-1607 [2] SPACER  
30. 4J-8425 [3] GASKET  
31. 5J-1553 [2] HOUSING  
32. 4J-4720 [1] LEVER  
33. 1B-8706 [5] KEY  
34. 8B-4037 [3] WASHER  
35. 1D-4717 [3] NUT  
36. 3J-4407 [3] SEAL  
37. 7F-7983 [6] BEARING  
38. 5J-1552 [1] SHAFT  
39. 5J-8307 [1] HOUSING  
40. 4J-4721 [1] LEVER  
41. 4K-1232 [1] LEVER  
42. 7H-3912 [1] BUSHING  
43. 4K-1230 [1] LEVER ASSEM.  
44. 2H-5746 [1] ADAPTER  
45. 1F-4166 [1] WASHER  
46. 6J-6231 [1] GASKET  
47. 0S-1621 [2] BOLT  
48. 1D-4720 [1] NUT  
49. 6J-6232 [1] BLOCK  
50. 6J-6622 [1] TIE BAR ASSEM.  
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0691
 

8J-0073: HYDRAULIC TANK AND VALVE GROUP

8J73 HYDRAULIC TANK AND VALVE GROUP--3 Valve--As Viewed from Rear of Machine--Part 1 of 3
Serial No. 87A4683-Up. Part of 7K582 and 7K583 Hydraulic Arrangements listed on Page 183
6J9411 Filter and 6J4409 Valve parts are shown on Pages 134, 134A, 190 and 190A
c134911 UEG0028S
8J0073 HYDRAULIC TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6J-9003 [1] TUBE ASSEM.  
2. 0S-1594 [4] BOLT  
3. 3B-4506 [58] LOCKWASHER  
4. 0S-1587 [2] BOLT  
5. 3B-4508 [12] LOCKWASHER  
6. 0S-1585 [2] BOLT  
7. 5J-8780 [1] TUBE  
8. 4J-3815 [1] GASKET  
9. 4J-3816 [1] PLATE  
10. 7B-6368 [1] BALL  
11. 4J-3754 [1] CAP  
12. 7B-2805 [1] RING  
13. 3D-6678 [1] STRAINER ASSEM.  
14. 2M-0340 [1] SEAL  
15. 0L-1351 [10] BOLT  
16. 8F-6711 [1] SEAL  
17. 6J-9411 Y [1] OIL FILTER GROUP  
    (See Separate Illustration)
18. 4J-8265 [4] NUT  
19. 4J-8251 [1] GROMMET  
20. 8J-0104 [1] TANK ASSEM.  
  2J-3349 [2] BLOCK  
21. 4J-5160 [2] FLANGE  
22. 7J-3038 [1] ADAPTER  
23. 5J-8755 [1] BOSS  
24. 5J-0096 [4] STUD  
25. 9S-3401 [1] SPACER  
26. 6J-3688 [1] TUBE ASSEM.  
  0S-1585 [1] BOLT  
27. 1A-2029 [38] BOLT  
28. 4K-0522 [1] GASKET  
29. 4J-2969 [1] FITTING  
  4J-2207 [1] NUT  
  4J-2208 [1] SLEEVE  
  3J-7354 [1] SEAL  
30. 6J-3907 [1] TUBE ASSEM.  
31. 4K-0521 [1] COVER ASSEM.  
32. 5M-9679 [2] BOSS  
33. 4K-0895 [1] GASKET  
34. 0L-2070 [4] BOLT  
35. [1] FLANGE  
36. 6J-2497 [4] GASKET  
37. 8H-7521 [1] SEAL  
38. 6J-7490 [1] TUBE ASSEM.  
39. 6J-7497 [1] TUBE ASSEM.  
40. 7J-7867 [1] TUBE ASSEM.  
41. 0S-1591 [4] BOLT  
42. 4J-3819 [1] STRAP  
43. 4J-6925 [4] STUD  
44. 1D-4719 [4] NUT  
45. 2H-6338 [1] SEAL  
46. 0S-0509 [2] BOLT  
47. 1H-8720 [1] SEAL  
48. 4J-8252 [1] GLASS  
49. 1D-4569 [2] BOLT  
50. 6J-4409 Y [1] VALVE GROUP  
    (See Separate Illustration)
51. 4J-8250 [1] RETAINER  
52. 6J-3905 [1] VALVE  
53. 6J-3911 [1] SPRING  
54. 5J-9261 [1] DISC  
  5J-5942 [1] GASKET  
55. 7J-8214 [1] TUBE ASSEM.  
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0692
 

8J-0073: HYDRAULIC TANK AND VALVE GROUP

8J73 HYDRAULIC TANK AND VALVE GROUP--3 Valve--As Viewed from Rear of Machine--Part 2 of 3
Serial No. 87A4683-Up
Part of 7K582 and 7K583 Hydraulic Arrangements listed on Page 183
c134912 UEG0028S
8J0073 HYDRAULIC TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5J-7546 [2] ROD  
  6F-0612 [2] NUT  
  5J-7624 [1] BODY GROUP  
2. [1] BODY  
  [1] STEM  
3. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
4. 5J-7598 [2] GASKET  
5. 4J-2184 [3] FITTING  
  3J-7354 [1] SEAL  
6. 4J-2207 [1] NUT  
  4J-2208 [1] SLEEVE  
7. 5J-8781 [1] TUBE  
8. 6H-0962 [2] SPRING  
  5J-7623 [1] BODY GROUP  
9. [1] BODY  
  [1] STEM  
10. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
11. 5B-2208 [2] BOLT  
12. 1B-4203 [4] NUT  
13. 1J-8489 [2] END  
14. 5J-7518 [4] LINK  
  2S-0975 [2] PIN  
  3B-4610 [2] COTTER PIN  
15. 3B-4618 [2] COTTER PIN  
16. 0S-1594 [10] BOLT  
17. 3B-4506 [21] LOCKWASHER  
18. 5J-7999 [1] LEVER  
19. 2J-8262 [2] ROLLER  
20. 5J-7707 [1] LEVER  
21. 1J-4384 [10] PIN  
22. 3B-4615 [8] COTTER PIN  
23. 5J-8306 [1] PLATE  
24. 5H-8985 [2] PIN  
25. 5J-1602 [1] ROD  
26. 0L-1351 [3] BOLT  
27. 1J-4603 [2] LINK  
28. 7H-3912 [4] BUSHING  
29. 4J-2923 [1] FLANGE  
30. 2L-8202 [1] SPRING  
31. 2J-5436 [1] VALVE  
32. 4J-6945 [1] BODY  
33. 3H-1461 [1] SEAL  
34. 1A-5964 [2] BOLT  
35. 4K-1068 [1] LEVER  
36. 3F-1417 [1] WASHER  
37. 7F-7983 [2] BEARING  
38. 4K-1065 [1] ROD  
39. 4J-3574 [1] ROD  
40. 4J-7646 [1] PLATE  
41. 2J-7290 [1] LEVER  
42. 5J-7706 [1] LEVER  
43. 4M-4460 [2] GASKET  
44. 5J-3481 [2] BEARING  
45. 0S-1590 [2] BOLT  
46. 1D-4717 [2] NUT  
47. 1T-0689 [2] WASHER  
48. 5J-1522 [1] HOUSING  
49. 6J-4875 [1] HOUSING  
 

#UEG0028S0693
 

8J-0073: HYDRAULIC TANK AND VALVE GROUP

8J73 HYDRAULIC TANK AND VALVE GROUP--3 Valve--As Viewed from R.H. Side of Machine--Part 3 of 3
Serial No. 87A4683-Up. Part of 7K582 and 7K583 Hydraulic Arrangements listed on Page 183
8J102 and 5J4031 Valve parts are shown on Pages 138D, 139 and 187
c134913 UEG0028S
8J0073 HYDRAULIC TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [56] BOLT  
2. 3B-4506 [58] LOCKWASHER  
3. 5D-7994 [1] JOINT ASSEM.  
4. 6J-7592 [1] COVER ASSEM.  
5. 4K-0519 [1] GASKET  
6. 0S-1592 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
7. 1A-1460 [2] BOLT  
8. 3B-4508 [12] LOCKWASHER  
9. 4J-0523 [1] SEAL  
10. 5F-1678 [1] SEAL  
11. 4K-4663 [1] COVER  
12. 8J-0102 Y [1] CONTROL VALVE GROUP  
    (See Separate Illustration)
13. 2H-3855 [2] BOLT  
14. 1D-4720 [1] NUT  
15. 6J-6232 [1] BLOCK  
16. 6J-6622 [1] TIE BAR ASSEM.  
17. 5J-4031 Y [1] VALVE GROUP (Internal Auxiliary)  
    (See Separate Illustration)
18. 9S-1366 [6] BOLT  
19. 5F-1678 [1] SEAL  
20. 4H-3793 [1] PLUG  
21. 0S-1591 [5] BOLT  
22. 6J-3686 [1] BAFFLE  
23. 4J-5368 [1] TUBE ASSEM.  
24. 4J-0524 [1] SEAL  
25. 6J-9001 [1] TUBE ASSEM.  
26. 3K-8460 [1] PLUG  
27. 1J-9671 [1] SEAL  
28. 5J-1551 [1] SHAFT  
29. 5J-1607 [3] SPACER  
30. 4J-8425 [3] GASKET  
31. 5J-1553 [2] HOUSING  
32. 4J-4720 [1] LEVER  
33. 1B-8706 [5] KEY  
34. 8B-4037 [3] WASHER  
35. 1D-4717 [3] NUT  
36. 3J-4407 [3] SEAL  
37. 7F-7983 [6] BEARING  
38. 5J-1552 [1] SHAFT  
39. 5J-8307 [1] HOUSING  
40. 4J-4721 [1] LEVER  
41. 4K-1232 [1] LEVER  
42. 7H-3912 [1] BUSHING  
43. 4K-1230 [1] LEVER ASSEM.  
44. 2H-5746 [1] ADAPTER  
45. 1F-4166 [1] WASHER  
46. 6J-6231 [1] GASKET  
47. 0S-1621 [2] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0694
 

7J-7272: TANK AND VALVE GROUP

7J7272 TANK AND VALVE GROUP--2 Valve--Part 1 of 3
Serial No. 87A4471 to 87A4586 and 87A4591-Up
Part of 7K7164 Ejector Bucket Arrangement listed on Page 175D
6J9411 Filter parts are shown on Pages 134 and 134A
c139499 UEG0028S
7J7272 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1592 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
2. 5F-1678 [1] SEAL  
3. 6J-6622 [1] TIE BAR ASSEM.  
4. 1D-4720 [1] NUT  
5. 6J-8999 [1] TUBE ASSEM.  
6. 0S-1587 [2] BOLT  
7. 3B-4508 [14] LOCKWASHER  
8. 8F-6711 [1] SEAL  
9. 2M-0340 [1] SEAL  
10. 0L-1351 [10] BOLT  
11. 3B-4506 [24] LOCKWASHER  
12. 6J-9411 Y [1] FILTER GROUP  
    (Separate Illustration)
13. 4J-8251 [1] GROMMET  
14. 4J-8252 [1] GLASS  
15. 4J-8265 [4] NUT  
16. 4J-8250 [1] RETAINER  
17. 7J-8214 [1] TUBE ASSEM.  
18. 6S-0112 [1] TUBE ASSEM.  
19. 6J-8997 [1] TUBE ASSEM.  
  4J-0524 [1] SEAL  
20. 9S-1366 [2] BOLT  
21. 6J-7589 [1] TANK ASSEM.  
  2J-3349 [2] BLOCK  
22. 4J-5160 [2] FLANGE  
23. 7J-3038 [1] ADAPTER  
24. 5J-8755 [1] BOSS  
25. 5J-0096 [4] STUD  
26. 5J-1358 [1] SEAL  
27. 4K-0521 [1] COVER ASSEM.  
  4K-0522 [1] GASKET  
28. 0S-1594 [4] BOLT  
29. 4K-0895 [1] GASKET  
30. 6J-3907 [1] TUBE ASSEM.  
31. 4J-5368 [1] TUBE ASSEM.  
32. 6J-2497 [4] GASKET  
33. 0L-2070 [4] BOLT  
34. 4J-5179 [1] FLANGE  
35. 8H-7521 [1] SEAL  
36. 6J-7490 [1] TUBE ASSEM.  
37. 6J-7497 [1] TUBE ASSEM.  
38. 5D-7994 [1] JOINT ASSEM.  
39. 4J-6925 [4] STUD  
  1D-4719 [4] NUT  
40. 1H-8720 [1] SEAL  
41. 4J-3819 [1] STRAP  
42. 2H-6338 [1] SEAL  
43. 0S-0509 [2] BOLT  
44. 6J-6232 [1] BLOCK  
45. 6J-6231 [1] GASKET  
46. 0S-1621 [2] BOLT  
47. 4H-3793 [1] PLUG  
  5F-1678 [1] SEAL  
48. 0S-1585 [3] BOLT (1.50" Long)  
49. 0S-1591 [4] BOLT  
50. 5J-9261 [1] DISC  
  5J-5942 [2] GASKET  
51. 6J-3911 [1] SPRING  
52. 8J-7241 C [1] ORIFICE  
53. 1D-4566 [1] BOLT (3.50" Long)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0695
 

7J-7272: TANK AND VALVE GROUP

7J7272 TANK AND VALVE GROUP--2 Valve--Part 2 of 3
Serial No. 87A4471 to 87A4586 and 87A4591-Up
Part of 7K7164 Ejector Bucket Arrangement listed on Page 175D
8J129 Valve parts are shown on Pages 186N and 186P
c134704 UEG0028S
7J7272 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [16] BOLT  
2. 3B-4506 [56] LOCKWASHER  
3. 5J-8781 [1] TUBE  
4. 4J-2184 [3] FITTING  
  4J-2207 [3] NUT  
  4J-2208 [3] SLEEVE  
  3J-7354 [3] SEAL  
    (1 each in 4J2184 Fitting)
5. 4J-2969 [1] FITTING  
  4J-2207 [1] NUT  
  4J-2208 [1] SLEEVE  
  3J-7354 [1] SEAL  
    (Parts of 4J2969 Fitting)
6. 5J-8780 [1] TUBE  
7. 3K-2759 [1] COVER  
  4J-0523 [1] SEAL  
8. 0S-1587 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
9. 8J-0129 Y [1] VALVE GROUP  
    (See Separate Illustration)
10. 3J-9298 [3] COVER  
11. 3J-9297 [3] COVER  
  2J-7606 [3] GASKET  
12. 1H-9696 [3] SEAL  
13. 7B-3235 [6] BOLT  
  1K-4703 [6] WASHER  
  5L-5180 [6] WASHER  
14. 1A-2029 [38] BOLT  
15. 1A-5964 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
16. 4J-2923 [1] FLANGE  
17. 4J-6945 [1] BODY  
18. 3H-1461 [1] SEAL  
19. 2J-5436 [1] VALVE  
20. 2L-8202 [1] SPRING  
21. 7J-2852 [1] COVER  
  4J-8425 [1] GASKET  
22. 0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
23. 4J-8425 [2] GASKET  
24. 7F-7983 [4] BEARING  
25. 3J-4407 [2] SEAL  
26. 4J-4720 [1] LEVER  
27. 0S-1591 [4] BOLT  
28. 1D-4717 [2] NUT  
29. 8B-4037 [2] WASHER  
30. 5J-1553 [1] HOUSING  
31. 5J-1607 [2] SPACER  
32. 5J-1551 [1] SHAFT  
33. 1B-8706 [4] KEY  
34. 5J-8307 [1] HOUSING  
35. 4J-4721 [1] LEVER  
36. 5J-1552 [1] SHAFT  
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0696
 

7J-7272: TANK AND VALVE GROUP

7J7272 TANK AND VALVE GROUP--2 Valve--Part 3 of 3
Serial No. 87A4471 to 87A4586 and 87A4591-Up
Part of 7K7164 Ejector Bucket Arrangement listed on Page 175D
c134705 UEG0028S
7J7272 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [46] BOLT  
2. 3B-4506 [52] LOCKWASHER  
3. 6J-7592 [1] COVER ASSEM.  
4. 5B-2208 [2] BOLT  
5. 4J-7646 [1] PLATE  
6. 2J-7290 [1] LEVER  
7. 1B-4203 [4] NUT  
8. 1J-8489 [2] END  
  5J-7623 [1] BODY GROUP  
9. [1] BODY  
10. [1] STEM  
11. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
12. 5J-7999 [1] LEVER  
13. 2J-8262 [2] ROLLER  
14. 4J-3754 [1] CAP  
15. 7B-6368 [1] BALL  
16. 4J-3815 [1] GASKET  
17. 4J-3816 [1] PLATE  
18. 7B-2805 [1] RING  
19. 4K-0519 [1] GASKET  
20. 3D-6678 [1] STRAINER ASSEM.  
21. 5J-7707 [1] LEVER  
22. 1J-4384 [4] PIN  
  3B-4615 [4] COTTER PIN  
23. 0L-1351 [2] BOLT  
24. 5J-8306 [1] PLATE  
  5H-8985 [2] PIN  
25. 5J-1602 [1] ROD  
26. 0S-1590 [2] BOLT  
  1T-0689 [2] WASHER  
27. 5J-3481 [2] BEARING  
28. 1D-4717 [2] NUT  
29. 5J-1522 [1] HOUSING  
30. 4M-4460 [2] GASKET  
31. 4J-3574 [1] ROD  
32. 6H-0962 [2] SPRING  
33. 5J-7706 [1] LEVER  
34. 7H-3912 [2] BUSHING  
35. 5J-7518 [4] LINK  
36. 2S-0975 [2] PIN  
  3B-4610 [2] COTTER PIN  
37. 5J-7546 [2] ROD  
38. 6F-0612 [2] NUT  
  5J-7624 [1] BODY GROUP  
39. [1] STEM  
40. [1] BODY  
41. 3J-2493 [1] PLUG  
  3K-0360 [1] SEAL  
42. 5J-7598 [2] GASKET  
43. 1J-4384 [2] PIN  
  3B-4618 [2] COTTER PIN  
44. 6J-4875 [1] HOUSING  
 

#UEG0028S0697
 

8J-0129: CONTROL VALVE GROUP

8J129 CONTROL VALVE GROUP--Side View--Part 1 of 2
Serial No. 87A4471 to 87A4586 and 87A4591-Up
Part of 7J7272 Tank and Valve Group shown on Pages 186H and 186J
3J8878 and 7J3972 Valve parts are shown on Page 140 and 190B
c134709 UEG0028S
8J0129 CONTROL VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0L-1329 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  5J-4595 [1] ADAPTER  
  1D-4566 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  3J-1553 [1] PLUG  
  4J-5267 [1] SEAL  
  4J-2923 [2] FLANGE  
  4J-0523 [2] SEAL  
  0T-0320 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4J-7932 [1] SPACER  
  4J-8149 [1] SPRING  
  8F-1560 [1] SPRING  
  4J-8147 [1] RETAINER  
  4J-7910 [1] SCREW  
  4J-7954 [1] SPACER  
  4J-7953 [1] SPACER  
  0S-1585 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  4J-4578 [1] COVER  
  4J-0519 [1] SEAL  
  5J-8316 [1] HOUSING  
  4J-7415 [2] VALVE  
  1J-8960 [2] SPRING  
  0S-1573 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  3J-8878 Y [1] VALVE GROUP  
    (SEE SEPARATE ILLUSTRATION)
  1D-4707 [2] BOLT  
  3B-4507 [2] LOCKWASHER  
  2J-5845 [2] SPRING  
  2J-5436 [2] VALVE  
  4J-0519 [2] SEAL  
  2J-5820 [2] PLUG  
  3J-3096 [1] SPACER  
  4J-3789 [1] SPRING  
  2J-4860 [1] SPACER  
  2J-5435 [1] RETAINER  
  2J-1712 [1] SCREW  
  2J-7258 [1] WASHER  
  1D-4707 [2] BOLT  
  3B-4507 [2] LOCKWASHER  
  7J-3972 Y [1] VALVE GROUP  
    (SEE SEPARATE ILLUSTRATION)
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0698
 

8J-0129: CONTROL VALVE GROUP

8J129 CONTROL VALVE GROUP--Top View--Part 2 of 2
Serial No. 87A4471 to 87A4586 and 87A4591-Up
Part of 7J7272 Tank and Valve Group shown on Pages 186G, 186H and 186J
5J4615 Valve parts are shown on Page 140A
c134710 UEG0028S
8J0129 CONTROL VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-0523 [4] SEAL  
  8F-3469 [14] SEAL  
  9S-8002 [1] PLUG  
  3J-7354 [1] SEAL  
  5J-8359 [1] BODY  
  4J-7415 [2] VALVE  
  1J-8960 [2] SPRING  
  4J-0523 [2] SEAL  
  3J-8774 [1] COVER  
  0S-1585 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  9S-8004 [1] PLUG  
  3J-1907 [1] SEAL  
  5J-4615 Y [1] VALVE GROUP  
    (SEE SEPARATE ILLUSTRATION)
  3J-1553 [1] PLUG  
  4J-0522 [2] SEAL  
  4J-5267 [1] SEAL  
  4J-5573 [1] SEAL  
  4J-8172 [1] BODY GROUP  
  9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
    (NOT SHOWN)
  [1] STEM  
  [1] STEM  
  [1] BODY  
  2J-5437 [2] INSERT  
  2A-1531 [1] BOLT (6.50" LONG)  
  4J-0521 [2] SEAL  
  0L-1329 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  4J-0523 [2] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UEG0028S0699
 

5J-4031: INTERNAL AUXILIARY VALVE GROUP

5J4031 INTERNAL AUXILIARY VALVE GROUP
Part of 6J7583 Hydraulic Tank and Valve and 5J3687 Field Conversion Groups shown on Pages 186 and 192
c93532 UEG0028S
5J4031 INTERNAL AUXILIARY VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2J-5820 [1] PLUG  
  4J-0519 [1] SEAL  
  0S-1585 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  3J-9214 [1] BRACKET  
  [1] SHAFT  
  5J-4032 [1] BODY GROUP  
  [1] STEM  
  [1] BODY  
  8F-3469 [6] SEAL  
  2J-5845 [1] SPRING  
  2J-5436 [1] VALVE  
  0L-1352 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  4J-7656 [1] RETAINER  
  4J-7446 [1] RETAINER  
  4J-3840 [1] SPRING  
  1J-4798 [1] WASHER  
  3L-0526 [1] BOLT  
  3B-4507 [1] LOCKWASHER  
  4J-7882 [1] SPACER  
  4J-5573 [5] SEAL  
 

Information:

Special Instruction
Hydraulic System Cleanup Recommendations Following Catastrophic Component Failures on Wheel Loader Hydraulic Systems {0645, 0680, 0738, 0768, 5050, 5056, 5095}
Hydraulic System Cleanup Recommendations Following Catastrophic Component Failures on Wheel Loader Hydraulic Systems {0645, 0680, 0738, 0768, 5050, 5056, 5095}
Technical Information Bulletin
HYDRAULIC TANK FILLER TUBE STRAINER MAY RUST
HYDRAULIC TANK FILLER TUBE STRAINER MAY RUST
Tool Operating Manual
204-7392 (Air Motor Driven) Filter Cart {0645, 0680, 0738, 5056, 5068}
204-7392 (Air Motor Driven) Filter Cart {0645, 0680, 0738, 5056, 5068}
Procedures for Using 9U-5971 and 173-9842 Filter Cart Group {0599, 0738, 5050, 5056, 5057, 5068, 5095, 7579}
Procedures for Using 9U-5971 and 173-9842 Filter Cart Group {0599, 0738, 5050, 5056, 5057, 5068, 5095, 7579}
Procedures For Using: 127-8781 Transfer Filter Cart , old 9U-7361 (110V, 60 hz), 169-7159 Transfer Filter Cart , old 127-8782 (220V, 50 hz) CE, 174-9158 Transfer Filter Cart , old 129-0849 (Air Motor Driven){0374, 0599, 0680, 0738}
Procedures For Using: 127-8781 Transfer Filter Cart , old 9U-7361 (110V, 60 hz), 169-7159 Transfer Filter Cart , old 127-8782 (220V, 50 hz) CE, 174-9158 Transfer Filter Cart , old 129-0849 (Air Motor Driven){0374, 0599, 0680, 0738}
Procedure for Using 173-8839 Fluid Storage Filter Cart {0113, 0374, 0599, 0680, 0738, 7579}
Procedure for Using 173-8839 Fluid Storage Filter Cart {0113, 0374, 0599, 0680, 0738, 7579}
188-3242 Filter Cart Group and 227-2479 Filter Cart Group{0374, 0599, 0680, 0738, 0768, 5050, 5056, 5095}
188-3242 Filter Cart Group and 227-2479 Filter Cart Group{0374, 0599, 0680, 0738, 0768, 5050, 5056, 5095}
Reuse And Salvage Guidelines
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Contamination Control Guidelines
Procedure for Filtering <NOBR> 9U-5000</NOBR> Hydraulic Test Bench Hydraulic Oil {0680, 0738, 0768, 0784, 5050, 5056}
Procedure for Filtering 9U-5000 Hydraulic Test Bench Hydraulic Oil {0680, 0738, 0768, 0784, 5050, 5056}
Filtration Procedure for Excavator Hydraulic Oil {0680, 0768, 5050, 5056}
Filtration Procedure for Excavator Hydraulic Oil {0680, 0768, 5050, 5056}
Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}
Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Filtration Times for Caterpillar Machine Fluid Compartments{0680, 0738, 0768, 3080, 5050, 5056, 5095}
Basic Principles of Kidney Loop Filtering Hydraulic Fluid Systems {0680, 0768, 5050, 5056}
Basic Principles of Kidney Loop Filtering Hydraulic Fluid Systems {0680, 0768, 5050, 5056}
Service Magazine
Single Element and Multiple Element Filter Heads are Available for Customized Systems {0738}
2004/03/29
A New Strainer Assembly For the Hydraulic Tank Is Now Available {5056, 5068}
2013/09/02
Welding On Fuel And Hydraulic Tanks {0353, 0679, 1273, 5056, 7000}
2005/12/19
Proper Identification of Ports on 5P-0306 Vacuum Transducer {0768, 5050, 5056}
2006/01/23
Barrel Adapter Allows Technician to Attach Filter Unit to Barrel {0645, 0680}
2006/02/13
Spanner Wrench is Available for Ecology Drain Valves {1302, 1353, 1372, 5076, 5613}
2006/03/20

Caterpillar Parts SIS Catalog 988 :

6J-7583 HYDRAULIC TANK AND VALVE GROUP
HYDRAULIC TANK AND VALVE GROUP
6J-7583 HYDRAULIC TANK AND VALVE GROUP
7K-0581 FIELD CONVERSION ARRANGEMENTS
7K-0580 FIELD CONVERSION ARRANGEMENTS
7K-0582 HYDRAULIC ARRANGEMENTS
7K-0583 HYDRAULIC ARRANGEMENTS
TIRE AND MOUNTING
TIRE AND MOUNTING
COUNTERWEIGHT GROUP
5K-1277 COUNTERWEIGHT GROUP
HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
8J-0073 HYDRAULIC TANK AND VALVE GROUP
TANK AND VALVE GROUP
7J-7272 TANK AND VALVE GROUP
7J-7272 TANK AND VALVE GROUP
7J-7272 TANK AND VALVE GROUP
CONTROL VALVE GROUP
8J-0129 CONTROL VALVE GROUP
8J-0129 CONTROL VALVE GROUP

Truck sale:

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Caterpillar 988, Radlader, Bau-Und Bergbauausrüstung
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