3-18. FUEL DRAINBACK HOSES REPLACEMENT

/.25ton/TM-9-2320-289-20 CUCV Series Trucks at Unit level Manual
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TM 9-2320-289-20 3-18. FUEL DRAINBACK HOSES REPLACEMENT. This task covers: a. Removal b. Installation INITIAL SETUP: Equipment Condition General Safety Instructions Both battery negative cables disconnected. DO NOT perform this procedure near (See paragraph 4-38) fire, flames, or sparks. Rear battery removed (M1010). Allow engine to cool before replacing (See paragraph 4-39) drainback hoses. a. REMOVAL WARNING Diesel fuel is flammable. DO NOT perform this procedure near fire, flames, or sparks. A fire extinguisher must be on hand in work area. Failure to follow this warning may result Allow engine to cool before replacing Failure to follow this warning may result NOTE in serious injury or death. drainback hoses (3 and 5). in serious burns. Perform step 1 only if visual inspection shows fuel leaking from either rear injector nozzle (4). 1. Remove 2 clamps (2) and caps (1) from 2 rear injector nozzles (4). 2. Remove 12 clamps (7) and 6 drainback hoses (3). NOTE When working on M1010, the right drainback hose (5) in step 3 cannot be removed unless alternators, alternator brackets, and mounting hardware are removed. (See paragraph 4-3) 3. Remove 4 clamps (6) and 2 drainback hoses (5). b . INSTALLATION 1. Install 2 caps (1) and clamps (2) at 2 rear injector nozzles (4) if removed. 2. Install 6 drainback hoses (3) with 12 clamps (7). 3. Install 2 drainback hoses (5) with 4 clamps (6). 3-56

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