TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 538 of 953
4-123. HEATER/VENT SYSTEM CONTROL BOX AND WIRING HARNESS REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models M996, M996A1 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Two locknuts (Appendix G, Item 70) Plain-assembled nut (Appendix G, Item 201) Plug button (Appendix G, Item 8) Four lockwashers (Appendix G, Item 136) Tiedown strap (Appendix G, Item 308) Manual References TM 9-2320-280-24P Equipment Condition Blower assembly removed (para. 11-212). TM 9-2320-280-20-2 4-292 Change 3 a. Removal 1. Remove locknut (1), washer (2), capscrew (8), washer (7), ground terminal (6), and capacitor (5) from fuel pump (16) and bracket (17). Discard locknut (1). 2. Disconnect control box lead (3) from fuel pump lead (4). 3. Remove locknut (15), washer (14), capscrew (11), and clamp (9) from control box harness (10), fuel line clamp (13), and body bracket (12). Discard locknut (15). 4. Remove grommet (18) from tunnel (26) and harness (10) and route harness (10) through hole in tunnel (26) and battery box grommet (25) into stowage compartment. 5. Remove two screws (22) and clamps (19) from harness (10), resuscitator harness (23), and body (21). 6. Remove tiedown strap (24) from harness (10) and resuscitator harness (23). Discard tiedown strap (24). 7. Route harness (10) up through grommet (20) into patient compartment. NOTE Prior to removal, tag leads for installation.