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Product: EXCAVATOR
Model: 329F L EXCAVATOR ERL
Configuration: 329F L Excavator ERL00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
326F, 329F and 330F Excavators Machine Systems
Media Number -UENR3313-09
Main Hydraulic Pump - Disassemble
SMCS - 5070-015
S/N - B321-UP
S/N - ERL1-UP
S/N - GHT1-UP
S/N - GKK1-UP
S/N - HBT1-UP
S/N - HCJ1-UP
S/N - HCK1-UP
S/N - JFR1-UP
S/N - JHF1-UP
S/N - KFA1-UP
S/N - LBN1-UP
S/N - LCG1-UP
S/N - MBX1-UP
S/N - RCN1-UP
S/N - SGK1-UP
S/N - TMR1-UP
S/N - TPG1-UP
S/N - WBA1-UP
S/N - WGL1-UP
S/N - XFK1-UP
S/N - YHA1-UP
S/N - ZNN1-UP
Disassembly Procedure
Table 1
Required Tools
Start By:
a. Remove the pump drive coupling.
Note: Only the right pump control is equipped with the proportional reducing valve. The left pump control starts with Step 4.
Illustration 1 g02405999
1. Remove bolts (2) and pump control (1).
Illustration 2 g02406017 Right Pump Only
2. Remove proportional reducing valve (3) from pump control (1).
Illustration 3
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3. Remove O-ring seal (7), O-ring seal (6), O-ring seal (5), and O-ring seal (4) from the proportional reducing valve (3).
Illustration 4 g02406264
4. Remove O-ring seals (8) and O-ring seal (9). Remove nut (10) from the pump control.
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5
5. Measure the length of screw (13) for installation purposes. Remove screw (13). Remove bolts (11). Remove cover (12) from the pump control.
Illustration 6
6. Remove stopper (14) from the pump control.
Illustration 7
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.
Illustration 8
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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.
Illustration 9
10. Remove dowel pin (19) from the pin.
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Illustration 10
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11. Remove bolts (20). Remove cover assembly (21) from the pump control.
Illustration 11
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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 Oring seal (26) from the adjuster.
Illustration 12
13. Remove spring (30) and spring (31) from the pump control. Remove guide (32) from the pump control. Remove ball (33) from the guide.
Illustration 13
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14. Remove pilot piston (34) from the pump control.
Illustration 14
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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.
Illustration 15
16. Remove O-ring seal (37) from the cover.
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Illustration 16
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17. Remove control piston (42), spring (41), spring (40), spool (39), and shims (38) from the pump control.
Illustration 17
18. Remove pin (43) from the pump control.
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Illustration 18
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19. Remove O-ring seal (44) from the pin (43).
Illustration 19
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20. Remove sleeve (45) and control linkage (46) from the pump control.
Illustration 20
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21. Remove slide plate (47) and dowel (48) from the control linkage.
Illustration 21
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22. Remove plugs (49). Remove three plugs (50) from the pump control.
Illustration 22
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23. Use Tooling (A) to remove seal assembly (52). Remove bolts (51), bell housing (53), and the gasket.
Illustration 23
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24. Remove O-ring seal (54) and lip seal (55) from the seal assembly.
Illustration 24
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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).
Illustration 25
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26. Remove caps (59) from nipples (62). Remove nipples (62), bolts (60), and covers (61) from head (58).
Illustration 26
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27. Remove O-ring seal (63) from covers (61).
Illustration 27
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28. Use Tooling (D) to remove bearings (64) from the head.
Illustration 28
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29. Remove plugs (65) and (66) from head (58).
Illustration 29
30. Remove orifices (67) from head (58).
Illustration 30
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.
Illustration 31
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32. Remove plugs (73), bolts (74), and covers (75) from pump housing (72).
Illustration 32
33. Remove plug (76) from covers (75).
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Illustration 33
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34. Remove O-ring seals (76) from pump housing (72).
Illustration 34
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35. Remove plugs (79), bolts (77), and covers (78) from pump housing (72).
35
36. Remove O-ring seal (80) from covers (78).
Illustration 36
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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.
Illustration 37
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38. Mark piston assemblies (83) and barrel (84) for assembly. Remove piston assembly (83) from barrel (84).
Illustration 38
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39. Remove pistons (85) from piston plate (86).
Illustration 39
40. Remove cap (87) from barrel (84).
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Illustration 40
41. Remove retainer (88) from barrel (84).
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Illustration 41
42. Remove springs (89) from barrel (84).
43. Repeat Step 38 through Step 42 for the remaining barrel assembly.
Illustration 42
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Note: The pump has been removed from Tooling (B) for photographic purposes only.
44. Use Tooling (E) to remove retaining rings (90).
Illustration 43
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45. Remove shaft assemblies (91) and (92) from pump housing (72).
Illustration 44
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46. Use Tooling (F) and a suitable press to remove bearing (93) from shaft assembly (91).
Illustration 45
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47. Remove ring (94) from shaft assembly (91).
Illustration 46 g01200501
48. Use Tooling (G) and a suitable press to remove bearing (95) from shaft assembly (91).
47
49. Remove spacer (96) and retaining ring (90) from shaft assembly (91).
50. Repeat Step 46 through Step 49 for shaft (92).
Illustration 48
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51. Remove swashplate assemblies (97) and (98) from pump housing (72).
Note: The swashplate assemblies must be installed in the original position during assembly.
Illustration 49
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52. Remove plate (99) from swashplate assembly (97).
Illustration 50
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53. Remove bearings (100) from swashplate assembly (97).
Illustration 51
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54. Remove dowel pins (101) from swashplate (97).
Illustration 52
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55. Remove bearing (102) from swashplate (97).
56. Repeat Step 52 through Step 55 for swashplate assembly (98).
Illustration 53
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57. Remove bearings (103) from pump housing (72).
Illustration 54
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58. Remove guide pins (104) from pump housing (72).
Illustration 55
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59. Remove bolts (105) and cover (106) from pump housing (72).
This is the sample of the manual click on the download link for complete manual
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For some reason if link does not work download this pdf and then click