TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 72 of 953
3-26. AUXILIARY FUEL PICKUP AND RETURN LINES REPLACEMENT This task covers: a. Removal b. Installation a. Removal CAUTION Cover or plug all open hoses and connections immediately after disconnection to prevent contamination. Remove all plugs prior to connection. NOTE Have drainage container ready to catch fuel. 1. Remove screw (5) and clamp (7), securing fuel return line (6) and fuel pickup line (4) to fuel line clamp (8). 2. Remove fuel pickup line (4) from supply tube (3) on fuel tank (1). 3. Remove fuel return line (6) from supply tube (2). WARNING Diesel fuel is highly flammable. Do not perform this procedure near fire, flames, or sparks. Severe injury or death will result. INITIAL SETUP: Applicable Models M1097, M1097A1, M1097A2, M1123 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Sealing compound (Appendix C, Item 44) Tiedown strap (Appendix G, Item 311) Manual References TM 9-2320-280-24P Equipment Condition Fuel tank removed (para. 3-24). General Safety Instructions Do not perform this procedure near fire, flames, or sparks. b. Installation NOTE Substitute tiedown strap for spring clamp when clamp is not available. 1. Apply sealing compound to threads of fuel return line (6) and fuel pickup line (4). 2. Install fuel return line (6) to supply tube (2) on fuel tank (1). 3. Install fuel pickup line (4) to supply tube (3). 4. Install clamp (7) on fuel return line (6) and fuel pickup line (4) and secure to fuel line clamp (8) with screw (5). TM 9-2320-280-20-2 3-50 Change 3