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 92 of 775
TM 9-2350-311-10
2-1
OPERATOR’S CONTROLS, INDICATORS, AND INSTRUMENTS - CONTINUED
2-1.3
Driver’s Fixed Instrument Panels - Continued
b.
Driver’s Fixed Instrument Panels for LHR Engine Model 7083-7391
1
2
FUEL PRIME CONTROL SWITCH
GLOW PLUGS SWITCH
3
HI-BEAM INDICATOR LIGHT
4
PARKING BRAKE INDICATOR LIGHT
5
DRIVING LIGHT CONTROL SWITCHES
6
FUEL GAGE CONTROL SWITCH
7
8
9
10
11
12
13
14
15
BILGE PUMP CONTROL SWITCH
NBC INDICATOR LIGHT
(M109A4/M109A5)
NBC POWER SWITCH
(M109A4/M109A5)
STARTER CONTROL SWITCH
GLOW PLUGS INDICATOR LIGHT
SPEEDOMETER
AUXILIARY OUTLET
TACHOMETER
Indicates engine rpm.
PANEL LIGHT
Activates the fuel prime pump.
Lights GLOW PLUGS indicator light and controls the glow plug
controller.
Lights when headlights are on high.
Lights to indicate brake is on or not fully released.
Activates the driving lights.
Activates the upper and lower fuel tank transmitters for FUEL
gage readings.
Activates the bilge pump.
Lights when NBC power switch is in the ON position to indicate
NBC system is activated.
Powers the NBC system.
Activates the starter motor.
Lights to indicate GLOW PLUGS switch is in ON position and
glow plugs system is activated.
Indicates vehicle speed.
Provides 24v power from electrical system to operate auxiliary
electrical equipment.
Lights instrument panel. Panel lights can be activated when
driving control switch is in the “OFF” position.
2-8 Change 2
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