TM 1-1730-232-13&P
3-15.7 Wheel Assembly Repair, Model 204-050-200-5 (AVUM) - Continued
WARNING
To prevent injury, the tire and tube must be completely deflated, and the valve stem cores
removed, before attempting to separate the wheel halves.
A. Repair. Repair wheel assembly 40-76-1 as follows:
1.
Remove the tire and tube (Figure 3-9).
a.
Press valve stem core to vent air from tube(4) and deflate tire completely.
b.
Remove valve stem core from tube stem.
c.
Remove nuts(7), washers (6), and bolts (5) from wheel halves at three locations.
d.
Separate wheel halves (2) and (1) and remove tire (3) and tube (4).
2.
Remove bearings and grease seals from outer wheel half.
a.
Remove lockring (8), washer (9), felt packing (10), washer (9), and bearing (11) from outer wheel half
(1).
b.
Clean bearing race and inspect for damage. If race is damaged, replace outer bearing (11) or wheel
half (1).
3.
Install bearings and grease seals in outer wheel half.
a.
Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage with
fingers.
b.
Install new bearing (11), washer (9), felt packing (10), flat washer (9), and lock ring (8).
4.
Remove bearings and grease seals from inner wheel half.
a.
Remove lockring (8), ring grease seal (14), felt packing (10), washer (15), and bearing (12) from inner
wheel half (2).
b.
Clean bearing race and inspect for damage. If race is damaged, replace inner wheel half (2).
5.
Install bearings and grease seals in inner wheel half.
a.
Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage with
fingers.
b.
Install new bearing (12), washer (15), felt packing (10), ring grease seal (14), and lockring (8) in inner
wheel half (2).
6.
Install tire and tube.
a.
Inflate new tube slightly to provide shape, and insert tube (4) into tire (3).
b.
Nest tire (3), tube (2) on wheel halves (2 and 1).
c.
Align tube valve stem and insert through hole in outer wheel half (2).
d.
Install washers (6) on bolts (5) through outer wheel half and inner wheel half at three places.
e.
Install washers (6) and nuts (7) on bolts (5); torque nuts to 140-150 in. lbs.
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