Caterpillar cat 329 dl excavator (prefix rsk) service repair manual (rsk00001 and up)

Service Repair Manual
Models
329DL EXCAVATOR

Note: Cleanliness is an important factor. Before the disassembly procedure, clean the exterior of
the component . Cleaning will prevent dirt from entering the internal mechanism.
Note: Only the right pump control is equipped with the proportional reducing valve. The left
pump control starts with Step 4.
Illustration 1 g01200312
1. Remove bolts (2) , pump control (1) , and fitting (3) .
Right Pump Only
2. Remove bolts (4) . Remove proportional reducing valve (5) from pump control (1) .
4/26329D L Excavator RSK00001-UP (MACHINE) POWERED BY C7 Engine(SEBP537...
2020/3/3https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...

Right Pump Only
3. Remove O-ring seal (9) , O-ring seal (8) , O-ring seal (7) , and O-ring seal (6) from the
proportional reducing valve.
4. Remove nut (10) from the pump control.

5. Measure the length of screw (13) for installation purposes. Remove screw (13) . Remove
bolts (11) . Remove cover (12) from the pump control.
6. Remove stopper (14) from the pump control.
7. Remove O-ring seal (15) and backup ring (16) from the stopper.
8. Repeat Step 4 through Step 7 for the other side of the pump control.

9. Place the pump control in a soft jawed vise. Support pin assembly (17) . Remove piston (18)
from the pump control. Remove pin assembly (17) from the pump control.
10. Remove dowel pin (19) from the pin.

11. Remove bolts (20) . Remove cover assembly (21) from the pump control.
Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
12. Remove O-ring seal (28) . Remove retainer (29) . Remove O-ring seal (27) from the
retainer. Remove nut (23) and nut (25) . Remove setscrew (22) . Remove adjuster (24) .
Remove O-ring seal (26) from the adjuster.

13. Remove spring (30) and spring (31) from the pump control. Remove guide (32) from the
pump control. Remove ball (33) from the guide.
14. Remove pilot piston (34) from the pump control.

Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
15. Remove bolts (35) . Remove cover (36) from the pump control.
16. Remove O-ring seal (37) from the cover.
17. Remove control piston (42) , spring (41) , spring (40) , spool (39) , and shims (38) from the
pump control.

18. Remove pin (43) from the pump control.
19. Remove O-ring seal (44) from the pin.

20. Remove sleeve (45) and control linkage (46) from the pump control.
21. Remove slide plate (47) and dowel (48) from the control linkage.
22. Remove plugs (49) . Remove three plugs (50) from the pump control.

23. Use Tooling (A) to remove seal assembly (52) . Remove bolts (51) , bell housing (53) , and
the gasket.
24. Remove O-ring seal (54) and lip seal (55) from the seal assembly.

25. Attach Tooling (C) and a suitable lifting device to head (10) . Remove bolts (56) and (57)
and head (58) . The weight of head (58) is approximately 41 kg (90 lb).
26. Remove caps (59) from nipples (62) . Remove nipples (62) , bolts (60) , and covers (61)
from head (58) .
27. Remove O-ring seal (63) from covers (61) .

28. Use Tooling (D) to remove bearings (64) from the head.
29. Remove plugs (65) and (66) from head (58) .
30. Remove orifices (67) from head (58) .

31. Remove O-ring seals (68) and (69) from pump housing (72) . Remove port plates (70) and
(71) .
Note: The port plates must be installed in the original position during assembly.
32. Remove plugs (73) , bolts (74) , and covers (75) from pump housing (72) .

33. Remove plug (76) from covers (75) .
34. Remove O-ring seals (76) from pump housing (72) .
35. Remove plugs (79) , bolts (77) , and covers (78) from pump housing (72) .

36. Remove O-ring seal (80) from covers (78) .
37. Remove barrel assemblies (81) and (82) from pump housing (72) .
Note: It may be necessary to use string to aid in the removal procedure. The barrel
assemblies must be installed in the original position during assembly.

38. Mark piston assemblies (83) and barrel (84) for assembly. Remove piston assembly (83)
from barrel (84) .
39. Remove pistons (85) from piston plate (86) .

40. Remove cap (87) from barrel (84) .
41. Remove retainer (88) from barrel (84) .
42. Remove springs (89) from barrel (84) .
43. Repeat Step 38 through Step 42 for the remaining barrel assembly.

Note: The pump has been removed from Tooling (B) for photographic purposes only.
44. Use Tooling (E) to remove retaining rings (90) .
45. Remove shaft assemblies (91) and (92) from pump housing (72) .

46. Use Tooling (F) and a suitable press to remove bearing (93) from shaft assembly (91) .
47. Remove ring (94) from shaft assembly (91) .
48. Use Tooling (G) and a suitable press to remove bearing (95) from shaft assembly (91) .

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49. Remove retaining ring (90) from shaft assembly (91) .
50. Repeat Step 46 through Step 49 for shaft (92) .
51. Remove swashplate assemblies (97) and (98) from pump housing (72) .
Note: The swashplate assemblies must be installed in the original position during assembly.
52. Remove plate (99) from swashplate assembly (97) .

53. Remove bearings (100) from swashplate assembly (97) .
54. Remove dowel pins (101) from swashplate (97) .
55. Remove bearing (102) from swashplate (97) .

56. Repeat Step 52 through Step 55 for swashplate assembly (98) .
57. Remove bearings (103) from pump housing (72) .
58. Remove guide pins (104) from pump housing (72) .

Caterpillar cat 329 dl excavator (prefix rsk) service repair manual (rsk00001 and up)

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