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FRONT HUB AND DRUM MAINTENANCE (Contd) - TM-9-2320-260-200700
REAR HUB AND DRUM MAINTENANCE (Contd) - TM-9-2320-260-200702

TM-9-2320-260-20 5-Ton 6x6 M809 Series Trucks (Diesel) Truck Cargo: 5-Ton 6x6 M813 (2320-00-050-8902) (EIC:BSB); Manual
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TM 9-2320-260-20
9-5. REAR HUB AND DRUM MAINTENANCE
THIS TASK COVERS:
a. Removal
c. Lubrication
b. Cleaning and Inspection
d. Installation
APPLICABLE MODELS
REFERENCES (TM)
All
LO 9-2320-260-12
TM 9-2320-260-10
MATERIALS/PARTS
TM 9-2320-260-20P
Ten wheel studs
EQUIPMENT CONDITION
Inner bearing seal
Cork gasket
Parking brake set (TM 9-2320-260-10).
Twenty lockwashers
Raise and support rear axles (para. 9-2).
Wiper
Wheels removed (para. 9-3).
Safety wire (Appendix C, Item 34)
Rear axle shaft removed (para. 7-12).
GAA grease (Appendix C, Item 16)
GENERAL SAFETY INSTRUCTIONS
Drycleaning solvent (Appendix C, Item 29)
Rags (Appendix C, Item 22)
Keep fire extinguisher nearby when using
drycleaning solvent.
PERSONNEL REQUIRED
Two
a. Removal
1.
Remove outer adjusting nut (1), adjusting nut washer (2), and inner adjusting nut (3) from
spindle (6).
Remove outer grease seal (4) from hub (8).
2.
NOTE
Service brakeshoes may need adjusting before service brakedrum
can be removed (para. 8-9).
Pull hub (8) and drum (9) out approximately 1 in. (25.4 mm). Push hub (8) and drum (9) back and
3.
remove outer bearing (5) and cork gasket (7) from spindle keyway (10). Discard cork gasket (7).
CAUTION
Do not slide hub and drum assembly over threaded end of spindles.
Damage to spindles may result.
4.
Remove hub (8) and drum (9) from spindle (6).
Remove wiper (13), inner bearing grease seal (12), and inner bearing (11) from spindle (6). Discard
5.
grease seal (12) and wiper (13).
Remove ten nuts (15), lockwashers (16), and inspection cover (17) from drum (9). Discard
6.
lockwashers (16).
Remove ten bolts (20) and deflector (19) from drum (9).
7.
Remove safety wire (21) from ten screws (22). Discard safety wire (21).
8.
NOTE
Assistant will help with step 9.
Remove ten screws (22), lockwashers (23), adapter (18), and hub (8) from drum (9). Discard
9.
lockwashers (23).
9-16






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