TM 5-4310-451-14
2-2.
CONTROLS AND INDICATORS (Con’t).
Key
Control or Indicator
Function
9
Cold Start Valve
Allows engine to run at unload speed (low pressure) until properly
warmed up. Used for cold weather starting.
10
Engine Override Button
Bypasses oil pressure switch when starting engine.
11
Master Battery Switch
Provides power for instrument panel when in ON position.
12
ON/OFF Engine Switch
Energizes electrical system when in ON position.
13
Tach/Hourmeter
Tachometer portion indicates engine revolutions per minute (rpm).
Hourmeter portion indicates and records total number of hours of
actual operation.
Key
Control or Indicator
Function
14
Air Compressor Oil
Indicates air compressor oil level. Oil level must be present in sight
Sight Gage
gage before operating air compressor unit.
15
Engine Oil Dipstick
Indicates level of oil in engine crankcase.
TA704686
2-3
