TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 Verify that there is fuel in tank (TM 9-2350-311-10). If fuel filters have been changed or fuel tank has run dry, notify support maintenance. Drain any water from primary fuel filter and continue to drain until fuel appears (para 6-6). Check for kinked, flattened, or broken fuel lines from tank to filters and engine (para 6-1). Check for blockage in quick disconnect fittngs (para 6-1). Check pumps to make sure they are in working order (para 6-5 and 6-6). Check fuel shutoff (para 5-8). On some vehicles that have MASTER switch in negative battery cable, sparking may occur if VTM case touches vehicle while MASTER switch is off and VTM power is on. Sparking in presence of fuel or vapors presents potential hazard. Avoid hazard by doing all testing with vehicle MASTER switch on. CAUTION Before opening fuel line, make sure that area around fuel line is clean. Operation of engine with red-striped transducer, TK item 22, installed could damage transducer. During this test, be prepared to shut off fuel immediately if engine starts. Remove transducer before attempting to start engine. Excessive pressure can damage transducer. Pressure being measured should not exceed -15 to +25 psig (-1.0 to +1.7 kg/sq cm). Go to Figure 3, sheet 24. Figure 3, Sheet 23 of 36 I-49 WARNING