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FIGURE 2-8. SUSPENSION ASSEMBLY
1. Housing
2. Plate
3. Cap Screw
4. Hardened Washer
5. Cap Screw
6. Washer
7. O-Ring
8. Backup Ring
9. Plug (Pressure
Sensor Port)
10. Upper Bearing
Retainer
11. Piston Stop
12. Nut
13. Roll Pin
MAJOR SUSPENSION REBUILD
Disassembly
NOTE: Refer to your Komatsu Distributor for
®
HYDRAIR
II repair information and instructions not
covered in this manual.
1. With suspension held in a vertical position (end
cap up), remove cap screws (1, Figure 2-5) and
hardened washers (2). Attach hoist to end cap
structure (16) and lift end cap out of suspension
housing (7) until piston stop (12) contacts upper
bearing structure (6). Remove cap screws (3)
and hardened washers (4). Lift cap structure
and bearing from housing.
2. Remove roll pin (10), nut (11), piston stop (12)
and key (13). Separate cap and bearing.
Remove O-rings (14) and backup rings (15).
Remove bearing (6).
3. Rotate the suspension 180°.
NOTE: Steel balls (9) will fall free when the housing
is rotated.
4. Attach lifting device to the piston (8) and care-
fully lift out of housing.
H02026
14. Steel Check Ball
15. Piston
16. Lower Bearing
Structure
17. Plug
18. Cap Screw
19. Hardened Washer
20. O-Ring
21. Backup Ring
22. Key
23. Upper Bearing
Structure
24. Rod Buffer Seal
25. Rod Lip Seal
26. Rod Wiper Seal
Front Suspensions
.
FIGURE 2-8 SUSPENSION ASSEMBLY
H2-9
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