TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
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12-146. REAR RADIO RACK TO TOWER ANTENNA CABLES REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models M998, M998A1, M1038, M1038A1 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Two locknuts (Appendix G, Item 79) Three lockwashers (Appendix G, Item 135) Manual References TM 9-2320-280-24P NOTE Antenna cables from rear radio rack to left or right antenna towers are replaced basically the same. This procedure covers the left antenna cables. 1. Remove two locknuts (7), washers (8), capscrews (10), washers (8), and insulation retainer (9) from radio rack (5). Discard locknuts (7). 2. Remove two screws (1) and retainer (2) from cargo floor (6) and left brace (11) and pull insulation (3) away from radio rack (5). 3. Remove three screws (13), clamps (14), and two antenna cables (4) from wheelhouse (16) and cargo floor (6). 4. Remove three nuts (17), lockwashers (18), clamps (15), and two antenna cables (4) from tower capscrews (19). Discard lockwashers (18). 5. Disconnect two antenna cables (4) from antenna (12). 1. Connect two antenna cables (4) to antenna (12) and route in approximate mounting location. 2. Install three clamps (15) and antenna cables (4) on tower capscrews (19) with three lockwashers (18) and nuts (17). 3. Install three clamps (14) on two antenna cables (4) and install three clamps (14) on wheelhouse (16) with screws (13). 4. Route antenna cables (4) under insulation (3) and install insulation (3) and retainer (2) on cargo floor (6) and left brace (11) with two screws (1). 5. Install insulation retainer (9) on radio rack (5) with two washers (8), capscrews (10) washers (8), and locknuts (7). Tighten capscrews (10) to 15 lb-ft (20 N•m). b. Installation a. Removal TM 9-2320-280-20-3 12-230 Change 2