TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0064 00 0064 00-6 SECONDARY AND FINAL FUEL FILTERS TESTING AND MAINTENANCE (Contd) INSTALLATION (Contd) Fuel Filter Head 1. Install fuel filter head (2) on engine (1) with three new lockwashers (5) and nuts (6). 2. Install tee (9), three elbows (3), and elbow (8) on fuel filter head (2). 3. Connect three fuel lines (4) and fuel line (7) to elbows (3) and (8). 4. Connect battery ground cable (WP 0126 00). BLEEDING AIR 1. Place accessory switch on instrument panel in ON position (TM 9-2320-361-10) to operate in-tank fuel pump. Do not start engine at this time. WARNING Accidental or intentional introduction of liquid contaminants into the environment is a violation of state, federal, and military regulations. Refer to Army POL (WP 0001 00) for information concerning storage, use, and disposal of these liquids. Failure to do so may result in damage to environment and health of personnel. NOTE Use a drain pan to capture any draining fuel. Dispose of fluids in accordance with local policy and ordinances. Ensure all spills are cleaned up. 2. Loosen bleeder valve (11). When fuel starts to flow, close bleeder valve (11). NOTE Perform step 3 for secondary and final fuel filters with two bleeder valves. 3. Open and close each bleeder valve (11) until fuel is clear of air bubbles. WARNING • There is enough fuel pressure to penetrate skin when removing injector tubes. Wear hand protection at all times when removing injector tubes. Failure to do so may result in injury to personnel. • Stay clear of moving parts. Failure to do so may result in injury or death to personnel. 4. Loosen injector tube (13) from injector (12). Crank engine (TM 9-2320-361-10) until no air bubbles are observed in fuel. Tighten injector tube (13). 5. Repeat step 4 for remaining injectors (13) in sequence shown. 6. Start engine (TM 9-2320-361-10). 7. With engine running, again open and close bleeder valve (11) until fuel is clear of air bubbles. Tighten bleeder valve (11) and stop engine (TM 9-2320-361-10). 8. Using clean rag, wipe fuel from secondary and final fuel filter housings (10) and injectors (13). 9. Lower and secure hood (TM 9-2320-361-10). 10. Release parking brake and remove wheel chocks (TM 9-2320-361-10).