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 - Page 109 of 1275
TM 9-2350-311-20-1
ITEM
SYMPTOM
PRIMARY
ALTERNATE
SERVICE
B.O.
INFRARED
HEADLIGHTS
AND B.O.
STOP LIGHTS
B.O. STOP LIGHT FAILS TO
OPERATE; ALL OTHER LIGHTS
OPERATE
Para 3-3w
None
INSTRUMENT
PANEL/
PORTABLE
INSTRUMENT
PANEL LIGHTS
ONE OR MORE INSTRUMENT PANEL
LIGHTS FAIL TO OPERATE
Para 3-3x(1)
Para 3-3x(2)
Para 3-3y
None
None
None
ALL INSTRUMENT PANEL LIGHTS
FAIL TO OPERATE
HI-BEAM
INDICATOR
LIGHT
HI-BEAM INDICATOR LIGHT FAILS TO
OPERATE; ALL OTHER LIGHTS
OPERATE
PERSONNEL
HEATER
PERSONNEL HEATER FAILS TO
OPERATE
Para 3-32(1)
Notify support
maintenance
Para 3-3z(2)
None
PERSONNEL HEATER WILL NOT
STOP WHEN SWITCH IS TURNED OFF
None
None
PERSONNEL HEATER INDICATOR
LIGHT FAILS TO OPERATE;
PERSONNEL HEATER OPERATES
PERSONNEL
VENTILATION
BLOWER
PERSONNEL VENTILATION BLOWER
FAILS TO OPERATE
Para 3-3aa
None
BILGE PUMP
BILGE PUMP FAILS TO OPERATE
Para 3-3ab
Para 3-3ac(1)
Para 3-3ac(2)
Para 3-3ad
None
None
None
None
WINTERIZATION
KIT
COOLANT HEATER FAILS TO
OPERATE
COOLANT HEATER MOTOR
OVERHEATS
PARKING BRAKE
WARNING
LIGHT
PARKING BRAKE WARNING LIGHT
FAILS TO OPERATE
ELECTRIC
FUEL PUMP
ENGINE MISSES WHEN LOW ON
FUEL; ONE OR BOTH FUEL PUMPS
FAIL TO OPERATE
Para 3-3ae
None
3-9
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