TM 9-2320-361-20 9-3. FRONT HUB AND DRUM MAINTENANCE This task covers: a. Removal c. Lubrication b. Cleaning and Inspection d. Installation INITIAL SETUP APPLICABLE MODELS All MATERIALS/PARTS Ten lockwashers Six wheel studs Ten screws Inner bearing seal GAA grease (Appendix C, Item 13) REFERENCES (TM) TM 9-2320-361-10 TM 9-2320-361-20P TM 9-214 EQUIPMENT CONDITION ● Front wheel (s) removed (para. 9-2) and rear wheels chocked (TM 9-2320-361-10) ● Front axle shaft flange removed (para. 7-10). PERSONNEL REQUIRED GENERAL SAFETY INSTRUCTIONS Two Keep fire extinguisher nearby when using drycleaning solvent. a. Removal I 1. Bend back tab s on adjusting nut washer (13) and remove outer adjusting nut (14), adjusting nut washer (13), and inner adjusting nut (12) from spindle (8). 2. Pull hub (2) and drum (10) with outer bearing (11) out about one inch. Push hub (2) and drum (10) back, and remove outer bearing (11). CAUTION Do not slide hub and drum assembly over-threaded end of spindle, or damage to equipment may result. 3. Remove hub (2) and drum (10) from spindle (8). 4. Remove ten nuts (15), lockwashers (16), and inspection cover (17). Discard lockwashers (16). 5. Remove six wheel studs (9) from adapter (4) and hub (2). Discard studs (9). 6. Remove ten screws (5) from adapter (4) and drum (10). Discard screws (5). 7. Remove inner bearing (6) and seal (7) from spindle (8). Discard seal (7). I b. Cleaning and Inspection I 1. 2. 3. 4. 5. 9-6 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 to personnel. Clean all hub (2) and drum (10) components with drycleaning solvent, and allow to air dry. Do not use compressed air to dry bearings (6) or (11). Inspect inner and outer bearings (6) and (11) (TM 9-214). If damaged, replace, Inspect inner and outer bearing cups (1) and (3) (TM 9-214). If damaged, replace. NOTE Perform steps 4 and 5 only if bearings or bearing cups are to be replaced. Remove inner and outer bearing cups (1) and (3) from hub (2) by tapping alternately on outer edge. Press new inner and outer bearing cups (1) and (3) into hub (2). Ensure cups (1) and (3) are seated.