TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download

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21-5. DIFFERENTIAL REPLACEMENT INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Two locknuts (Appendix G, Item 174) Two locknuts (Appendix G, Item 161) Two washer seals (Appendix G, Item 422) Sealing compound (Appendix C, Item 63) Personnel Required One mechanic One assistant Manual References TM 9-2320-387-24P Equipment Condition Service brake rotors removed (para. 7-12). General Safety Instructions Differential must be supported during removal and installation. Maintenance Level Direct support This task covers: a. Removal b. Installation a. Removal TM 9-2320-387-24-2 21-6 Change 1 1. Remove drainplug (21) from differential (1). Allow oil to drain and install drainplug (21). 2. Remove four capscrews (7), two straps (6), and propeller shaft (8) from pinion flange (2). NOTE Rear differential is not equipped with washers as indicated in step 3. 3. Remove two capscrews (5) and washers (4) from differential (1) and mounting bracket (3). 4. Remove two locknuts (12), washers (9), capscrews (10), washers (9), and mounting bracket (3) from frame crossmember (11). Discard locknuts (12). 5. Remove two locknuts (16), washer seals (17), and output flanges (18) from differential (1). Discard locknuts (16) and washer seals (17). 6. Support differential (1). 7. Remove four capscrews (15) and washers (14) from differential (1) and side mounting brackets (13). 8. Lower differential (1) slightly and disconnect vent line (22). 9. Remove differential (1). 10. Remove four capscrews (19) and two brake caliper adapters (20) from differential (1). WARNING Differential must be supported during removal and installation. Failure to do this may cause injury to personnel or damage to equipment. NOTE Have drainage container ready to catch oil. The replacement procedure for front and rear differential is basically the same except where noted.