Komatsu 930E-2 Shop Manual page 382

Disassembly
NOTE: As parts are removed they should be laid out in
a group in the same order in which they are removed.
1. Clean the exterior of the pump assembly thor-
oughly. If the steering pump is attached, remove
capscrews (10, Figure 3-3) and pull the steering
pump free of transition plate (8). Remove O-ring
(16).
2. Remove coupling (9). Remove dowels (3) if dam-
aged, or if replacement of the bearing plate is
necessary.
1. Drive Gear & Shaft
2. Seal
3. Idler Gear
4. Stud
5. Steel Ball
6. Flange
7. Dowel
8. Gear Plate
9. O-ring
L3-4
FIGURE 3-4. HOIST PUMP
10. Connector Plate
11. O-ring
12. Bearing Plate
13. Gear Plate
14. Connector Plate
15. Washer
16. Nut
17. Stud
18. Idler Gear
Hydraulic Component Repair
3. The pump may be supported by placing on wood
blocks with the input drive shaft pointing down.
Mark each section nearest the input drive gear to
facilitate reassembly
4. Remove nuts (17, Figure 3-3). Remove bearing
plate (20, Figure 3-4) with transition plate (22) and
O-ring (26). Remove capscrews securing the
bearing plate to the transition plate and remove
O-ring (23). Remove dowels if damaged, or if
replacement of the transition plate is necessary.
19. Dowel
20. Bearing Plate
21. Dowel
22. Transition Plate
23. O-ring
24. (Not Used)
25. Coupler
26. O-ring
27. Drive Gear (Rear)
28. Snap Ring
29. Coupler
30. Steel Ring
31. Backup Ring
32. O-ring
33. Pressure Plate
34. Isolation Plate
35. Plug
36. Snap Ring
L03027