TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 647 of 1170
a. Removal b. Installation CAUTION TM 9-2320-280-20-3 12-33. ARCTIC HEATER FUEL SUPPLY LINE BULKHEAD COUPLING REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools Manual References General mechanic’s tool kit: TM 9-2320-280-10 automotive (Appendix B, Item 1) TM 9-2320-280-24P Materials/Parts General Safety Instructions Sealing compound (Appendix C, Item 44) Do not perform this procedure near fire, flames, or sparks. WARNING Diesel fuel is highly flammable. Do not perform this procedure near fire, flames, or sparks. Severe injury or death will result. Cover or plug all open hoses and connections immediately after disconnection to prevent contamination. Remove all covers or plugs prior to connection. NOTE Have drainage container ready to catch fuel. 1. Disconnect pump-to-bulkhead fuel supply line (1) from elbow (2). 2. Disconnect elbow (2) from coupling half (5). 3. Remove coupling nut (3) and washer (4) from bulkhead (8) and coupling half (5). 4. Disconnect filter-to-bulkhead fuel supply line (7) from elbow (6). 5. Remove coupling half (5) from elbow (6). 6. Inspect elbows (2) and (6) and coupling half (5) for damaged threads or cracks. Replace if cracked or damaged. 1. Apply sealing compound to threads of elbows (2) and (6). 2. Connect elbow (6) to coupling half (5). 3. Connect filter-to-bulkhead fuel supply line (7) to elbow (6). 4. Install coupling half (5) on bulkhead (8) with washer (4) and coupling nut (3). 5. Connect elbow (2) to coupling half (5). 6. Connect pump-to-bulkhead fuel supply line (1) to elbow (2). 12-48