TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9-2350-311-10 1–14 EQUIPMENT OPERATION AND DESCRIPTION — CONTINUED 1–14.3 Flame Heater System (Engine Model 7083-7396) a. FLAME HEATER SOLENOID VALVE. The flame heater solenoid valve (1) receives fuel from the fuel return system (2) and delivers this fuel to the flame heater box (3). b. AIR MOTOR AND PUMP. The air motor and pump (4) delivers air directly to the flame heater box (3). c. FLAME HEATER IGNITER. The flame heater igniter (5) provides electrical ignition of atomized fuel in the flame heater box (3). 1-26