TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
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11-207. HEATER EXHAUST PIPE REPLACEMENT (M996, M996A1) This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models M996, M996A1 Tools General mechanic’s tool kit: automotive (Appendix B, Item) Materials/Parts Two lockwashers (Appendix G, Item 144) Manual References TM 9-2320-280-24P General Safety Instructions Do not touch hot exhaust system components with bare hands. WARNING Do not touch hot exhaust system components with bare hands. Severe injury will result. a. Removal 1. Remove two screws (1) from exhaust pipe bracket (2) and body (7). 2. Remove two capscrews (5) and lockwashers (6) from support bracket (4) and body (7). Discard lockwashers (6). 3. Remove exhaust pipe (3) and support bracket (4) by sliding out of exhaust outlet (8). 4. Remove two nuts (9), U-bolt (10), clamp (11), and support bracket (4) from exhaust pipe (3). TM 9-2320-280-20-3 Change 2 11-313 b. Installation 1. Install support bracket (4) and clamp (11) on exhaust pipe (3) with U-bolt (10) and two nuts (9). Do not tighten nuts (9). 2. Install exhaust pipe (3) and support bracket (4) on body (7), ensuring end of exhaust pipe (3) is fully seated on exhaust outlet (8). 3. Install exhaust pipe bracket (2) on body (7) with two screws (1). 4. Install support bracket (4) on body (7) with two lockwashers (6) and capscrews (5). Tighten capscrews (5) to 15 lb-ft (20 N•m). 5. Tighten two nuts (9) to 15 lb-ft (20 N•m).