TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 432 of 953
TM 9-2320-280-20-2 4-194 Change 3 4-99. NBC CONTROL BOX AND WIRING HARNESS REPLACEMENT (M996, M996A1) This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models M996, M996A1 Tools General mechanic’s kit: automotive (Appendix B, Item 1) Materials/Parts Four lockwashers (Appendix G, Item 136) Plain-assembled nut (Appendix G, Item 201) Locknut (Appendix G, Item 128) Three locknuts (Appendix G, Item 97) Lockwasher (Appendix G, Item 133) Three lockwashers (Appendix G, Item 135) Five tiedown straps (Appendix G, Item 309) Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition NBC control panel removed (para. 4-124). 1. Remove four screws (11), lockwashers (10), and cover (9) from control box (1). Discard lockwashers (10). NOTE Prior to removal, tag all leads for installation. 2. Remove locknut (12), lockwasher (3), washer (2), and positive cable lead 782 (22) from positive stud (25). Discard lockwasher (3) and locknut (12). 3. Remove two screws (13) and NBC harness leads (14) from mounting buss (26). 4. Disconnect lead 791A (23) from light harness lead 791B (24). 5. Remove plain-assembled nut (18), clamp (20), and NBC harness (4) from control box stud (21). Discard plain-assembled nut (18). 6. Remove four screws (8), clamps (7), NBC harness (4), and heater harness (6) from body (5). 7. Remove two screws (15), washers (16), retainer (17), and grommet (19) from body (5) and remove retainer (17) and grommet (19) from NBC harness (4). a. Removal