TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
Page 505 of 1258
TM 9-2320-280-34 9 - 5. DIFFERENTIAL REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools Manual References General mechanic's tool kit: TM 9-2320-280-24P automotive (Appendix G, Item 1) TM 9-2320-280-20 Materials/Parts Equipment Condition Four lockwashers (Appendix E, Item 82) Service brake rotors removed (TM 9-2320-280-20). Two locknuts (Appendix E, Item 59) Four seal washers (Appendix E, Item 198) General Safety Instructions Sealing compound (Appendix B, Item 50) Differential must be supported during removal and installation. Personnel Required One mechanic Maintenance Level One assistant Direct support a. Removal NOTE Have drainage container ready to catch oil. 1. Remove drainplug (26) from differential (6). Allow oil to drain and install drainplug (26). NOTE Perform step 2 if replacing front or rear differential on vehicles with serial numbers USBL Eff. 44825 and above. 2. Remove four capscrews (11), two straps (10), and propeller shaft (12) from pinion yoke (7). 3. Remove four capscrews (5), lockwashers (4), and rear propeller shaft (1) from differential flange (3). Discard lockwashers (4). 4. Remove parking brake rotor (2). NOTE Washers are not required when securing front differential to mounting bracket. 5. Remove two capscrews (9) and washers (20) from differential (6) and mounting bracket (8). NOTE Perform step 6 if replacing front differential. 6. Remove two locknuts (16), washers (13), capscrews (14), washers (13), and mounting bracket (8) from frame crossmember (15). 7. Remove two locknuts (21), four seal washers (22), and two output flanges (23) from differential (6). Discard locknuts (21) and seal washers (22). WARNING Differential must be supported during removal and installation. Failure to do this may cause injury to personnel or damage to equipment 8. Support differential (6). 9. Remove four capscrews (19) and washers (18) from differential (6) and side mounting brackets (17). 10. Lower differential slightly and disconnect vent line (27). 9-6