OPERATOR'S STATION
TM 5-3805-263-14&P-3
Check for continuity through the switch with a continuity tester or a digital multimeter.
Continuity
No Continuity
Go to Step 2
Replace the switch.
2. Check for continuity from the switch to machine ground.
Continuity
No Continuity
Go to Step 3
Replace the harness or connect a ground wire from
the switch to machine ground.
3. Connect the control wire to the switch again. Disconnect the harness plug from the
operator panel. Check for continuity between the connections that follow:
Continuity
No Continuity
Replace the operator panel
Use the electrical schematic or the simplified sche-
matics to find the harness with an open (broken)
wire. Replace the harness.
PROBLEM B: Alternator Indicator is ON
TROUBLESHOOTING
1. If alternator indicator is ON, increase engine speed.
Indicator Turns ON
Indicator Does Not Turn ON
Tighten alternator belt and check indicator again
Go to Step 2.
2. Make a check of the alternator output at the "R" terminal. For the alternator indicator
to be OFF, the operator panel must have 10 volts or more to connection 3
Use a
digital multimeter.
Voltage Output is Correct
Voltage Output is Not Correct
Replace the operator panel
Replace or repair the alternator.
4-39
