TM 9-2320-361-20 9-4 REAR HUB AND DRUM MAINTENANCE This task covers: a. Removal c. Lubrication b. Cleaning and Inspection d. Installation lNITIAL SETUP: APPLICABLE MODELS PERSONNEL REQUIRED All Two MATERIALS/PARTS REFERENCES (TM) Outer bearing seal TM 9-2320-361-10 Inner bearing seal TM 9-2320-361-20P Cork gasket TM 9-214 Eighteen lockwashers Six wheel studs EQUIPMENT CONDITION Ten screws Wheels chocked (TM 9-2320-361-10). Ten locknuts Rear wheel(s) removed (para. 9-2) Seal Rear axle shaft flange removed (para. 7-11). Safety wire (Appendix C, Item 22) GAA grease (Appendix C, Item 13) GENERAL SAFETY INSTRUCTIONS Keep fire extinguisher nearby when using drycleaning solvent. I a. Removal 1. 2. 3. 4. 5. 6. 7. 8. 9. Bend back tabs on adjusting nut washer (22), and remove outer adjusting nut (23), adjusting nut washer (22), and inner adjusting nut (21) from spindle (8). CAUTION Do not slide seal over threaded end of spindle, or damage to seal may result. Remove outer seal (20), cork gasket (14), and outer bearing (19) from spindle (8). Discard cork gasket (14) and outer seal (20). CAUTION Do not slide hub and drum assembly over spindle, or damage to equipment may result. Remove hub (13) and drum (18) from spindle (8). Remove ten locknuts (15), lockwashers (16), and inspection cover (17) from drum (18). Discard locknuts (15) and lockwashers (16). Remove ten screws (3) and deflector (2) from adapter (1). Discard screws (3). Remove hub (13) from drum (18). Remove safety wire (9), eight screws (10), lockwashers (11), and adapter (1) from hub (13). Discard safety wire (9) and lockwashers (11). Remove six wheel studs (12) from hub (13). Discard studs (12). Remove inner bearing (4) and seal (5) from spindle (8). Discard seal (5). b. Cleaning and Inspection WARNING Drycleaning solvent is flammable and will not be used near open flame. Use only in well-ventilated places. Failure to do so may result in injury or death to personnel. 1. Clean all hub (13) and drum (18) components with drycleaning solvent, and allow to air dry. Do not use compressed air to dry bearings (4) or (19). 9-8