TM 5-3805-258-24-1
9 5 0 B O P E R A T O R ’ S S T A T I ON
E L E C T R I C A L T R O U B L E S H O O T I NG
PROBLEM A: One Or More Indicators Are ON.
Possible Causes:
If low fuel indicator is ON (normal with low fuel level):
a. Bad fuel level switch (sensor).
b. An open (break) in a harness wire to the sensor.
If parking brake indicator is ON (normal with parking brake engaged):
a. Bad parking brake pressure switch.
b. An open (break) in a harness wire to the switch.
If engine oil pressure indicator is ON (normal if engine oil pressure is low:
STOP ENGINE IMMEDIATELY).
a. Bad engine oil pressure switch.
b. An open (break) in a harness wire to the switch.
If brake air pressure indicator is ON (normal with loss of brake air pressure:
STOP engine and do not operate machine).
a. Bad brake air pressure switch.
b. An open (break) in a harness wire to the switch.
If brake oil pressure indicator is ON (normal with loss of brake oil pressure:
STOP engine and do not operate machine).
a. Bad brake oil pressure switch.
b. An open (break) in a harness wire to the switches.
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