TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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TM 9-2320-280-20-2 3-36. FUEL INJECTION RETURN HOSES REPLACEMENT This task covers: a. Fuel Drain Back Hose Removal e. Nozzle to Nozzle Hose Removal b. Fuel Drain Back Hose Installation f. Nozzle to Nozzle Hose Installation c. Tube to Nozzle Hose Removal g. Nozzle Cap Removal d. Tube to Nozzle Hose Installation h. Nozzle Cap Installation INITIAL SETUP: Tools Equipment Condition General mechanic’s tool kit: Engine access cover removed (para. 10-15). automotive (Appendix B, Item 1) Air horn removed (para. 3-14). Manual References General Safety Instructions TM 9-2320-280-10 Do not perform this procedure near fire, flames, or TM 9-2320-280-24P sparks. WARNING Diesel fuel is highly flammable. Do not perform this procedure near fire, flames, or sparks. Severe injury or death will result. CAUTION Cover or plug all hoses and connections immediately after disconnection to prevent contamination. Remove all plugs prior to connection. NOTE Have drainage container ready to catch fuel. a. Fuel Drain Back Hose Removal 1. Loosen two clamps (2) and remove hose (3) from injection pump (4) and fuel drain back tube (1). 2. Remove two clamps (2) from hose (3). b. Fuel Drain Back Hose Installation 1. Install two clamps (2) to hose (3). 2. Connect hose (3) to injection pump (4) and fuel drain back tube (1) with two clamps (2). c. Tube to Nozzle Hose Removal 1. Loosen two clamps (5) and remove hose (6) from nozzle (7) and fuel drain back tube (1). 2. Remove two clamps (5) from hose (6). d. Tbbe to Nozzle Hose Installation 1. Install two clamps (5) to hose (6). 2. Connect hose (6) to nozzle (7) and fuel drain back tube (1) with two clamps (5). 3-68