Hoist Pump Disassembly (Front Section) - Komatsu 930E-2 Shop Manual

10. Remove bearing plate (10, Figure 3-6). If the bear-
ing plate is stuck, tap lightly with a plastic hammer
to loosen it. Remove O-rings (9) and (11).
11. Remove steel rings (13), backup ring (14), O-ring
and retainer (15) and isolation plate (17). Remove
dowels (16) if damaged or if replacement of the
bearing plate (10) is necessary.
12. Unthread the thru studs (12) and remove. Remove
flange (5), if stuck tap flange lightly with a plastic
1. Drive Gear & Shaft
2. Seal
3. Idler Gear
4. Steel Ball
5. Flange
6. Dowel
7. Gear Plate
L3-6
FIGURE 3-6. HOIST PUMP DISASSEMBLY (Front Section)
8. O-ring
9. O-ring
10. Bearing Plate
11. O-ring
12. Thru Studs
13. Steel Rings
14. Backup Ring
Hydraulic Component Repair
hammer to loosen. Remove O-ring (8). Remove
dowels (6) if damaged or if replacement of the
flange (5) or gear plate (7) is necessary.
13. Remove steel rings, backup ring, O-ring and re-
tainer. Remove drive gear (1) and idler (3) from
gear plate (7). Remove both pressure plates (18).
15. O-ring & Retainer
16. Dowel
17. Isolation Plate
18. Pressure Plate
19. Plug
20. Seal
21. Snap Ring
L03027