TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 4-4. FUEL INJECTION LINES MAINTENANCE This task covers: a. Removal c. Installation b. Inspection d. Bleeding INITIAL SETUP: Tools Equipment Condition General mechanic's tool kit: •Intake manifold removed (para. 3-17). automotive (Appendix G, Item 1) •Fuel injection pump boot removed (TM 9-2320-280-20). Special Tool Crowfoot, 16 mm (Appendix G, Item 135) General Safety Instructions Crowfoot, 19 mm (Appendix G, Item 111) Do not perform this procedure near fire, flames, or sparks. Manual References TM 9-2320-280-10 Maintenance Level TM 9-2320-280-20 Direct support TM 9-2815-237-34P 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, connections, and openings immediately after disconnection or component removal to prevent contamination. Remove all plugs prior to connection. NOTE The fuel injection pump replacement procedures for pre-1990, 1990 and above 6.2 L and 6.5 L engines, are basically the same. Refer to engine decal model number on left rocker arm cover before ordering replacement parts, since replacement parts are not interchangeable. a. Removal NOTE Have drainage container available to catch fuel. 1. Loosen two fuel injection line nuts (2) and disconnect fuel injection lines (3) from fuel injection nozzles (7). 2. Remove screw-assembled washer (4) and clamp (5) from support bracket (8). NOTE Tag fuel injection lines by cylinder number for assembly. 3. Loosen two fuel injection line nuts (2) and remove fuel injection lines (3) from fuel injection pump (1). 4. Remove clamp (5) and two grommets (6) from fuel injection lines (3). b. Inspection 1. Inspect fuel injection lines (3) for cracks, bends, or damage. Replace if cracked, bent, or damaged. 2. Inspect grommets (6) for damage. Replace if damaged. 4-4