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 88 of 775
TM 9-2350-311-10
2–1 OPERATOR’S CONTROLS, INDICATORS, AND INSTRUMENTS —
CONTINUED
2–1.2
Portable Instrument Panel
1
2
3
4
5
6
7
8
9
10
11
WATER TEMP GAGE
INDICATOR LIGHTS
ENGINE OIL PRESSURE GAGE
FUEL GAGE
BATTERY GAGE
MASTER SWITCH
MASTER SWITCH INDICATOR LIGHT
TRANSMISSION OIL PRESSURE
GAGE
MASTER WARNING INDICATOR LIGHT
COOLANT INDICATOR LIGHT
TRANSMISSION OIL TEMP GAGE
Indicates engine water temperature.
Illuminates portable instrument panel.
Indicates engine oil pressure.
Indicates fuel level.
Indicates battery condition.
Activates the vehicle electrical system.
Illuminates when MASTER switch is in ON position.
Indicates transmission oil pressure.
Indicates critical engine operating conditions including trans-
mission oil low pressure, transmission oil high temperature,
engine coolant high temperature, and engine oil low tempera-
ture.
Indicates low coolant.
Indicates transmission oil temperature.
2-4
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