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7J603 HYDRAULIC STEERING PUMP ASSEMBLY--Type 1 Serial No. 79S1 to 79S66 inclusive Part of 8M3892 Steering Pump, Tank & Lines Group shown on Page 133 768B


STEERING SYSTEM
PUMP GP
TANK GP-HYDRAULIC
CYLINDER GP
TANK GP-HYDRAULIC
LINK GP-STEERING

TRACTOR 768B TRACTOR 79S
 768B TRACTOR 79S00001-UP (MACHINE) POWERED BY D343 ENGINE UEG0580S 768B 79S   (1971)

STEERING SYSTEM

PUMP GP
HYDRAULIC STEERING PUMP ASSEMBLY
7J-0603 HYDRAULIC STEERING PUMP ASSEMBLY
HYDRAULIC STEERING PUMP ASSEMBLY
7J-0603 HYDRAULIC STEERING PUMP ASSEMBLY
CARTRIDGE GP
3G-1267 CARTRIDGE GP
ELECTRIC DRIVE PUMP ASSEMBLY
7D-0746 ELECTRIC DRIVE PUMP ASSEMBLY
 

#UEG0580S0380
 

7J-0603: HYDRAULIC STEERING PUMP ASSEMBLY

7J603 HYDRAULIC STEERING PUMP ASSEMBLY--Type 1
Serial No. 79S1 to 79S66 inclusive
Part of 8M3892 Steering Pump, Tank & Lines Group shown on Page 133
c124776 UEG0580S
7J0603 HYDRAULIC STEERING PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-9279 O [1] SEAL KIT  
    (Consists of parts marked H)
  7J-0564 [1] CARTRIDGE ASSEM.  
    (Consists of parts marked J)
    (25 U.S. Gallons per minute)
  J [10] VANE  
  J [10] INSERT  
  1A-5405 [4] BOLT  
  J [1] ROTOR  
  J [1] PLATE ASSEM.  
  J [2] PIN  
  [1] BEARING  
    (Part of Plate Assem.)
  J [2] SCREW  
  3D-6156 [1] COVER  
  J [1] RING  
  2J-8163 H [1] SEAL  
  2J-8165 [1] BODY  
  2J-8172 [1] RING  
  2L-5271 [1] BEARING  
  2J-8168 [1] WASHER  
  2J-8169 H [1] SEAL  
  2J-8170 H [1] WIPER  
  6J-1714 [1] SHAFT  
  4M-5285 [1] RING  
  4J-9225 H [1] RING  
  1H-5728 H [1] SEAL  
  J [1] PLATE  
  2H-3928 H [1] SEAL  
  4J-9220 H [1] RING  
  O   NOT PART 7J603 HYDRAULIC PUMP
 

#UEG0580S0381
 

7J-0603: HYDRAULIC STEERING PUMP ASSEMBLY

7J603 HYDRAULIC STEERING PUMP ASSEMBLY--Type 2
Serial No. 79S1 to 79S66 inclusive
Part of 8M3892 Steering Pump, Tank and Lines Group shown on Page 133
c162652 UEG0580S
7J0603 HYDRAULIC STEERING PUMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3D-6156 [1] COVER  
2. 1A-5405 [4] BOLT  
3. 3G-1267 RYC [1] CARTRIDGE GROUP  
    (Separate Illustration)
4. 2J-8172 [1] RING (outer)  
5. 2L-5271 [1] BEARING  
6. 2J-8168 [1] WASHER  
7. 2J-8169 [1] SEAL  
8. 6J-1714 [1] SHAFT  
9. 4M-5285 [1] RING (inner)  
10. 9J-5123 [1] BODY  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#UEG0580S0382
 

3G-1267: CARTRIDGE GP

3G1267 CARTRIDGE GROUP
Serial No. 79S1 to 79S66 inclusive
Part of 7J603 Hydraulic Pump Assembly
c162650 UEG0580S
3G1267 CARTRIDGE GP Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-1264 [4] RETAINER  
2. 3G-1265 [4] SEAL  
3. 2J-8163 [1] SEAL  
4. 3G-1820 [1] SEAL  
5. 4J-9225 [1] RING  
6. 1H-5728 [1] SEAL  
 

#UEG0580S0383
 

7D-7290: HYDRAULIC STEERING TANK GROUP

7D7290 HYDRAULIC STEERING TANK GROUP
Part of Steering Pump, Tank & Lines shown on Page 134
c110498 UEG0580S
7D7290 HYDRAULIC STEERING TANK GROUP Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1588 [4] BOLT (Marked X)  
2. 3L-1850 [1] PLUG  
3. 1A-2029 [2] BOLT  
4. 3B-4506 [53] LOCKWASHER  
5. 8H-9819 [1] ADAPTER  
6. 8H-9818 [1] GASKET  
7. 4B-7739 [1] PLUG  
8. 6D-5686 [1] PLUNGER  
9. 7B-6368 [1] BALL  
10. 7H-1447 [1] CAP  
11. 6H-5139 [1] PLATE  
12. 9H-6454 [1] GASKET  
13. 6H-9361 [1] RING  
14. 5D-7927 [1] STRAINER ASSEM.  
15. 2D-5383 [1] GASKET  
16. 1B-2578 [1] NUT  
17. 0S-0509 [1] BOLT (Marked Y)  
18. 4J-8250 [1] RETAINER  
19. 4J-8265 [4] NUT  
20. 0S-1585 [4] BOLT  
21. 2B-1738 [4] LOCK  
22. 0S-1594 [47] BOLT  
23. 1D-4717 [51] NUT  
24. 5D-7808 [1] TUBE ASSEM.  
25. 6D-1534 [1] COVER ASSEM.  
26. 7D-7209 [1] TANK ASSEM.  
27. 5D-7931 [1] BLOCK  
28. 5J-0096 [4] STUD  
29. 5D-7932 [1] BRACE  
30. 5D-7933 [1] BRACKET  
    (Parts of 7D7209 Assem.)
31. 4J-8251 [1] GROMMET  
32. 4J-8252 [1] GLASS  
 

#UEG0580S0384
 

7J-7528: STEERING CYLINDER GROUP

7J7528 STEERING CYLINDER GROUP--3.75" Bore x 14.80" Stroke
Serial No. 79S1 to 79S79 inclusive
Part of Steering Pump, Tank and Lines shown on Pages 134 and 134C
c129923 UEG0580S
7J7528 STEERING CYLINDER GROUP Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1H-5278 [4] FLANGE  
2. 4B-3388 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
3. 5J-8019 [1] RING  
4. 5J-8011 [1] SEAL ASSEM.  
5. 5J-8238 [1] SEAL  
6. 6J-3892 [1] SEAL  
7. 7J-7527 [1] ROD ASSEM.  
8. 4D-2829 [1] PIN  
    (Part of 7J7527 Assem.)
9. 7J-3620 [1] HEAD  
10. 1D-4608 [4] BOLT  
  3B-4512 [4] LOCKWASHER  
11. 1S-0669 [1] RING  
12. 2H-4145 [1] SEAL  
13. 6J-1121 [1] PISTON  
14. 5J-5731 [1] NUT  
15. 6J-1124 [1] CYLINDER ASSEM.  
16. 4D-2829 [1] PIN  
    (Part of 6J1124 Cylinder Assem.)
17. 6J-6916 [1] SEAL  
 

#UEG0580S0385
 

9J-1287: CYLINDER GP-STEER

9J1287 CYLINDER GROUP (Change 0)--3.75" Bore x 14.75" Stroke
Serial No. 79S80-Up
Part of Steering Pump, Tank and Lines shown on Page 134F
c148052 UEG0580S
9J1287 CYLINDER GP-STEER Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5J-5731 [1] NUT  
2. 9J-1301 R [1] CYLINDER ASSEM.  
3. 5J-8019 [1] RING  
4. 5J-8011 [1] SEAL ASSEM.  
5. 5J-8238 [1] SEAL  
6. 6J-3892 [1] SEAL  
7. 7J-7526 R [1] ROD  
8. 6J-6916 [1] SEAL  
9. 7J-3620 [1] HEAD  
10. 1D-4608 [4] BOLT  
  3B-4512 [4] LOCKWASHER  
11. 1S-0669 [1] RING  
12. 2H-4145 [1] SEAL  
13. 6J-1121 [1] PISTON  
  R   RMFG PART MAY BE AVAILABLE
 

#UEG0580S0386
 

7J-8076: HYDRAULIC OIL FILTER GROUP

7J8076 HYDRAULIC OIL FILTER GROUP
Part of 8M3892 Steering Pump, Tank & Lines Group shown on Pages 134, 134C,
134F & 134J
c167515 UEG0580S
7J8076 HYDRAULIC OIL FILTER GROUP Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5J-3172 [1] GASKET  
2. 9S-4686 [1] PLUG  
3. 3J-1907 [1] SEAL  
4. 7J-5583 [1] BOLT  
5. 2J-8455 [1] SPRING (inner)  
6. 6J-2589 [1] COVER  
7. 2J-6114 [1] SPRING (outer)  
8. 5J-7500 [1] SCREEN ASSEM.  
9. 5J-1473 [1] SEAT  
10. 4J-6064 [1] ELEMENT ASSEM.  
    -OR-
  3G-4621 H [1] ELEMENT  
    (Fire resistant fluid)
11. 2J-0918 [1] VALVE  
12. 5J-2926 [1] SPRING  
13. 3F-0566 [1] WASHER  
14. 1H-1200 [1] PIN  
15. 2J-0917 [1] RETAINER  
15. 7J-8077 [1] HOUSING ASSEM.  
17. 7J-5730 [1] RETAINER ASSEM.  
18. 7S-9625 [1] SWITCH  
    (Includes)
  3D-2824 [1] SEAL  
19. 1D-4569 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
20. 7J-5925 [1] COTTER PIN  
21. 3H-3667 [2] FLANGE  
22. 3H-5368 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
23. 6F-4855 [1] SEAL  
  H   NOT PART OF 7J8076 OIL FILTER
 

#UEG0580S0387
 

9M-1959: STEERING LINKAGE

STEERING LINKAGE (9M1959 N/S)
Serial No. 79S1 to 79S79 inclusive
6D1670 Link parts are shown on Pages 140B and 141
c126368 UEG0580S
9M1959 STEERING LINKAGE Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-1680 [1] LINK ASSEM.  
2. 5D-7535 [2] SEAT  
3. 5D-6953 [2] SPRING  
4. 5D-6954 [2] PLUG  
5. 5D-6955 [2] BUMPER  
6. 5D-6956 [4] BEARING  
    (Parts of 6D1680 Link Assem.)
7. 3B-8488 [2] FITTING  
8. 7F-7944 [1] SEAL  
9. 9H-5205 [2] BEARING  
10. 7F-7943 [1] WASHER  
11. 6D-1621 [1] SHAFT  
  1B-8716 [2] KEY  
12. 3B-5753 [2] NUT  
  3B-4518 [2] LOCKWASHER  
13. 2M-6345 [3] BALLSTUD  
  1B-4440 [3] NUT  
  4B-4281 [3] WASHER  
  3B-4618 [3] COTTER PIN  
14. 5D-2069 [1] FITTING  
15. 5D-1857 [1] PIN  
16. 4D-7781 [2] BEARING  
17. 3B-8489 [2] FITTING  
18. 6D-1623 [1] LEVER  
19. 0S-1585 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
20. 1B-4444 [4] NUT  
  1D-4270 [4] WASHER  
  3B-4631 [4] COTTER PIN  
21. 4D-6741 [4] SPRING  
22. 3B-8485 [6] FITTING  
23. 4D-6742 [4] SEAL  
  4D-6743 [8] WASHER  
24. 6D-1547 [2] ARM  
25. 6D-1616 [1] LEVER  
26. 0S-1601 [4] BOLT  
  1B-4206 [4] NUT  
  3B-4510 [4] LOCKWASHER  
27. 6D-1554 [2] ROD  
28. 2M-9385 [4] CLAMP  
29. 6D-1622 [1] SUPPORT  
30. 6D-1597 [1] ARM  
31. 1D-4635 [8] BOLT  
  3B-4516 [8] LOCKWASHER  
32. 3B-4621 [4] COTTER PIN  
33. 9M-6413 [2] BOOT  
34. 1B-4367 [2] BOLT  
  4D-7779 [1] LOCK  
35. 6D-1670 Y [1] LINK GROUP  
    (See Separate Illustration)
36. 5D-6945 [2] BOOT  
37. 1A-1135 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
38. 6D-1617 [1] LEVER  
39. 6D-9947 C [2] SOCKET ASSEM. (Right Hand)  
40. 6D-9948 C [2] SOCKET ASSEM. (Left Hand)  
41. 6D-9908 [4] BALLSTUD  
42. 6D-1985 [4] RING  
43. 6D-1639 [4] PLUG  
44. 6D-1984 [4] SPRING  
45. 4D-2829 [4] PIN  
    (1 each in 6D9947 & 6D9948 Assem.)
46. 6D-9907 [8] BEARING  
    (2 in each 6D9947 & 6D9948 Assem.)
  Y   SEPARATE ILLUSTRATION
 

#UEG0580S0388
 

9M-1959: STEERING LINKAGE

STEERING LINKAGE (9M1959 N/S)
Serial No. 79S80-Up
6D1670 Link parts are shown on Page 141
c148053 UEG0580S
9M1959 STEERING LINKAGE Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-1680 [1] LINK ASSEM.  
    (Includes)
2. 5D-7535 [2] SEAT  
3. 5D-6953 [2] SPRING  
4. 5D-6954 [2] PLUG  
5. 5D-6955 [2] BUMPER  
6. 5D-6956 [4] BEARING  
7. 3B-8488 [2] FITTING  
8. 7F-7944 [1] SEAL  
9. 9H-5205 [2] BEARING  
10. 7F-7943 [1] WASHER  
11. 6D-1621 [1] SHAFT  
  1B-8716 [2] KEY  
12. 3B-5753 [2] NUT  
  3B-4518 [2] LOCKWASHER  
13. 2M-6345 [3] BALLSTUD  
  1B-4440 [3] NUT  
  7S-2960 C [3] WASHER  
  3B-4618 [3] COTTER PIN  
14. 3B-8486 C [1] FITTING  
15. 7D-8922 C [1] PIN  
16. 4D-7781 [2] BEARING  
17. 3B-8489 C [1] FITTING  
18. 6D-1623 [1] LEVER  
19. 0S-1585 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
20. 1B-4444 [4] NUT  
  1D-4270 [4] WASHER  
  3B-5303 C [4] COTTER PIN  
21. 4D-6741 [4] SPRING  
22. 3B-8485 C [5] FITTING  
23. 4D-6742 [4] SEAL  
  4D-6743 [8] WASHER  
24. 6D-1547 [2] ARM  
25. 6D-1616 [1] LEVER  
26. 9F-2247 C [1] PLUG  
27. 1A-1135 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
28. 6D-1617 [1] LEVER  
29. 6D-1622 [1] SUPPORT  
30. 6D-1597 [1] ARM  
31. 1D-4635 [8] BOLT  
  3B-4516 [8] LOCKWASHER  
32. 3B-4621 [4] COTTER PIN  
33. 7D-6607 C [4] COVER ASSEM.  
34. 1B-4367 [2] BOLT  
  4D-7779 [1] LOCK  
35. 6D-1670 Y [1] LINK GROUP  
    (Separate Illustration)
36. 9D-4137 C [2] LINK ASSEM.  
    (Each Includes)
  6D-1554 [1] ROD  
37. 0S-1601 [2] BOLT  
  1B-4206 [2] NUT  
  3B-4510 [2] LOCKWASHER  
38. 2M-9385 [2] CLAMP  
39. 9D-3957 [1] SOCKET ASSEM. (R.H.)  
40. 9D-3956 [1] SOCKET ASSEM. (L.H.)  
    (Each Assem. Includes)
41. 6D-9908 [1] BALLSTUD  
42. 6D-1985 [1] RING  
43. 6D-1639 [1] PLUG  
44. 9D-2887 [1] RACE  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0580S0389
 

6D-1670: LINK GROUP

6D1670 LINK GROUP
Serial No. 79S1 to 79S76 inclusive
Part of Steering Linkage shown on Page 140
c113598 UEG0580S
6D1670 LINK GROUP Parts scheme
  For full view, you need register

Parts for your 768B TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5D-6953 [1] SPRING  
  5D-6955 [1] BUMPER  
  3B-8488 [1] FITTING  
  5D-6844 [1] SPRING  
  5D-6848 [1] STOP  
  4B-4550 [1] FITTING  
  1B-4209 [1] NUT  
  5D-6913 [1] RETAINER ASSEM.  
  2A-4248 [1] NUT  
  5D-6956 [2] BEARING  
  5D-6954 [1] PLUG  
  5D-6957 [1] SOCKET ASSEM.  
  5D-5954 [1] PLUG  
    (Part of Socket Assem. 5D6957)
  5D-6956 [2] BEARING  
  5D-6953 [1] SPRING  
  5D-6955 [1] BUMPER  
  5D-7535 [1] SEAT  
    (Parts of Socket Assem. 5D6957)
  3B-8488 [1] FITTING  
  3B-4622 [1] COTTER PIN  
    (Part of 5D6957 Assem.)
  0S-1601 [1] BOLT  
  1B-4206 [1] NUT  
  3B-4510 [1] LOCKWASHER  
  5D-6952 [1] CLAMP  
  6D-2250 [1] SHAFT ASSEM.  
  5D-6846 [1] SLEEVE  
  1H-9696 [1] SEAL  
  6D-2217 [1] NUT  
  1H-5728 [1] SEAL  
  5D-6845 [1] RETAINER  
 

Information:

Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}

Caterpillar Parts SIS Catalog 768B :

8M-3892 STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES GROUP
STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES GROUP
STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES GROUP
8M-3892 STEERING PUMP TANK AND LINES
8M-3892 STEERING PUMP TANK AND LINES
HYDRAULIC STEERING PUMP ASSEMBLY
7J-0603 HYDRAULIC STEERING PUMP ASSEMBLY
CARTRIDGE GP
3G-1267 CARTRIDGE GP
HYDRAULIC STEERING TANK GROUP
7D-7290 HYDRAULIC STEERING TANK GROUP
STEERING CYLINDER GROUP
7J-7528 STEERING CYLINDER GROUP
CYLINDER GP-STEER
9J-1287 CYLINDER GP-STEER
HYDRAULIC OIL FILTER GROUP
7J-8076 HYDRAULIC OIL FILTER GROUP
STEERING LINKAGE
9M-1959 STEERING LINKAGE
STEERING LINKAGE
9M-1959 STEERING LINKAGE

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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
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