Caterpillar cat 320 d2 excavator (prefix yea) service repair manual (yea00001 and up)

Service Repair Manual
Models
320D2 and 320D2 L Excavator

S/N - TMF1-UP
S/N - WDJ1-UP
S/N - XAN1-UP
S/N - XBB1-UP
S/N - XCC1-UP
S/N - YEA1-UP
S/N - ZBD1-UP
S/N - ZCS1-UP
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 1P-2420 Transmission Repair Stand 1
C 138-7575 Link Bracket 3
D
1P-0510 Driver Group 1
1U-8605 Seal Guide 1
E 1P-1859 Retaining Ring Pliers 1
H 1U-6396 O-Ring Assembly Compound 1
Illustration 1 g01200516
1. Install gasket (107) onto pump housing (72) .
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2. Install cover (106) and bolts (105) onto pump housing (72) .
3. Install guide pins (104) onto pump housing (72) .
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4. Install bearings (103) onto pump housing (72) .
5. Install bearing (102) into swashplate (97) .
6. Install dowel pins (101) into swashplate (97) .
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7. Install bearings (100) onto swashplate assembly (97) .
8. Install plate (99) onto swashplate assembly (97) .
9. Repeat Step 5 through Step 8 for swashplate assembly (98) .
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10. Install swashplate assemblies (97) and (98) into pump housing (72) .
Note: The swashplate assemblies must be installed in the original position during assembly.
11. Install retaining ring (90) onto shaft assembly (91) .
12. Raise the temperature of bearing (95) and bearing (93) . Install bearing (95) and bearing
(93) onto shaft assembly (91) .
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13. Install ring (94) onto shaft assembly (91) .
14. Repeat Step 11 through Step 13 for shaft assembly (92) .
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15. Lower the temperature of the shaft assemblies. Install shaft assemblies (91) and (92) into
pump housing (72) .
Note: The pump has been removed from Tooling (B) for photographic purposes only.
16. Use Tooling (E) to install retaining rings (90) .
17. Install springs (89) into barrel (84) .
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18. Install retainer (88) onto barrel (84) .
19. Install cap (87) onto barrel (84) .
20. Install pistons (85) into piston plate (86) .
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21. Install piston assembly (83) into barrel (84) .
22. Repeat Step 17 through Step 21 for the remaining barrel assembly.
23. Install barrel assemblies (81) and (82) into 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.
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24. Install O-ring seal (80) onto covers (78) .
25. Install covers (78) , bolts (77) , and plugs (79) onto pump housing (72) .
26. Install O-ring seals (76) into pump housing (72) .
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27. Install plug (76) into covers (75) .
28. Install covers (75) , bolts (74) , and plugs (73) onto pump housing (72) .
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29. Install O-ring seals (68) and (69) onto pump housing (72) . Install port plates (70) and (71) .
Note: The port plates must be installed in the original position during assembly.
30. Install orifices (67) into head (58) .
31. Install plugs (65) and (66) into head (58) .
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32. Install bearings (64) into the head.
33. Install O-ring seal (63) into covers (61) .
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34. Install nipples (62) , covers (61) and bolts (60) onto head (58) . Install caps (59) onto
nipples (62) .
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
35. Attach Tooling (C) and a suitable lifting device to head (10) . Install head (58) , bolts (56) ,
and bolts (57) . The weight of head (58) is approximately 41 kg (90 lb).
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36. Install O-ring seal (54) and lip seal (55) onto the seal assembly.
37. Install shrink wrap on the shaft. This will protect the seal during the installation procedure.
Install the gasket and bell housing (53) . Install bolts (51) .
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38. Use Tooling (D) to install seal assembly (52) .
39. Install plugs (49) . Install three plugs (50) into the pump control.
40. Install slide plate (47) and dowel (48) onto the control linkage.
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41. Install control linkage (46) and sleeve (45) into the pump control.
42. Install O-ring seal (44) onto the pin.
43. Install pin (43) into the pump control.
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Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
44. Install shims (38) , spool (39) , spring (40) , spring (41) , and control piston (42) into the
pump control.
45. Install O-ring seal (37) onto the cover.
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46. Install cover (36) onto the pump control. Install bolts (35) .
47. Install pilot piston (34) into the pump control.
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48. Install ball (33) into the guide. Install guide (32) into the pump control. Install spring (31)
and spring (30) into the pump control.
49. Install O-ring seal (26) onto the adjuster. Install adjuster (24) . Install setscrew (22) . Install
nut (23) and nut (25) . Install O-ring seal (27) onto the retainer. Install retainer (29) . Install
O-ring seal (28) .
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Caterpillar cat 320 d2 excavator (prefix yea) service repair manual (yea00001 and up)

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