TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994
TM-9-2350-311-20-1

  TM-9-2350-311-20-1 - Page 37 of 1275

TM 9-2350-311-20-1
1-17.4 Glow Plug System (Engine Model 7083-7391)
a. GLOW PLUGS switch (1) and wait light (2) — GLOW PLUGS switch activates controller and GLOW PLUGS
wait light.
b. Controller (3) and glow plugs (4)
—
The controller powers glow plugs and GLOW PLUGS wait light (2). When
activated, the light comes on for 35 seconds while glow plugs reach sufficient temperature. The light then
flashes to indicate that the engine (5) can be started. After the engine is started, the light and glow plugs stay 01
for an additional 60 seconds.
c. Engine (5) — contains controller and eight glow plugs.
1-23


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