TM-9-2350-311-10
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; OPERATOR’S MANUAL
NOVEMBER 1994
TM-9-2350-311-10 - Page 64 of 775
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
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