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

5. Remove connector plate (9, Figure 3-5). Remove
O-ring (8) and steel rings (10) and (14). Remove
dowels (6) if damaged, or if connector plate re-
placement is necessary.
NOTE: If the connector plate is stuck, tap lightly with a
plastic hammer to loosen.
6. Remove backup ring (15), O-ring and retainer (16)
and isolation plate (17). Grasp the drive gear (12)
and idler gear (11) and pull straight up and out of
the gear plate (5) bore. Remove pressure plate
(18) from gears.
1. O-ring
2. Bearing Plate
3. O-ring
4. O-ring
5. Gear Plate
6. Dowel
L03027
FIGURE 3-5. HOIST PUMP DISASSEMBLY (Rear Section)
7. Stud
8. O-ring
9. Connector Plate
10. Steel Ring
11. Idler Gear
12. Drive Gear (Rear)
Hydraulic Component Repair
7. Remove gear plate (5) and pressure plate (19).
Remove steel rings, backup ring, O-ring and re-
tainer and isolation plate. Remove O-ring (3) and
stud O-ring (4).
8. Remove bearing plate (2, Figure 3-5). Remove
O-ring (23) and stud O-rings (1). Remove dowels
(20) if damaged or replacement of the bearing
plate is necessary.
9. Remove coupling (21). Remove snap ring (22) if
damaged or replacement is necessary.
NOTE: Disassembly of the rear pump section is now
complete. Do not remove thru studs at this time as the
studs serve as guides for disassembly.
13. Bearings
14. Steel Ring
15. Backup Ring
16. O-ring & retainer
17. Isolation plate
18. Pressure Plate
19. Pressure Plate
20. Dowels
21. Coupling
22. Snap Ring
23. O-ring
L3-5