Komatsu 830E-AC Shop Manual page 651

9. Remove bearing plate (2). Remove O-ring (23)
and stud O-rings (1). Remove dowels (20) if
damaged or replacement of the bearing plate is
necessary.
10. 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.
11. Remove bearing plate (10, Figure 3-4). If the
bearing plate is stuck, tap lightly with a plastic
hammer to loosen it. Remove O-rings (9) and
(11).
12. Remove steel rings (13), backup ring (14),
O-ring, retainer (15) and isolation plate (17).
Remove dowels (16) if damaged or if replace-
ment of the bearing plate (10) is necessary.
L03039
FIGURE 3-4. HOIST PUMP DISASSEMBLY (FRONT SECTION)
Hydraulic Component Repair
13. Unthread the thru studs (12) and remove.
Remove flange (5), if stuck tap flange lightly
with a plastic 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.
14. Remove steel rings, backup ring, O-ring and
retainer. Remove drive gear (1) and idler (3)
from gear plate (7). Remove both pressure
plates (18).
15. Remove outboard shaft seal (2), snap ring (21)
and inboard shaft seal (20).
10. Bearing Plate
11. O-Ring
12. Thru Studs
13. Steel Rings
14. Backup Ring
15. O-Ring & Retainer
16. Dowel
17. Isolation Plate
18. Pressure Plate
19. Plug
20. Seal
21. Snap Ring
1. Drive Gear & Shaft
2. Seal
3. Idler Gear
4. Steel Ball
5. Flange
6. Dowel
7. Gear Plate
8. O-Ring
9. O-Ring
L3-7