ARMY TM 9-6115-642-10
AIR FORCE TO 35C2-3-455-11
MARINE CORPS TM 09247A/09248A-10/1
TABLE 3-1. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
14. AC voltmeter (VOLTS AC) indicates low voltage.
Step 1.
Check that AM-VM transfer switch position corresponds to readings on the AC voltmeter (VOLTS AC).
refer to TABLE 2-5.
Set VOLTAGE adjust potentiometer.
Step 2.
Check for loose or broken wires at back of AM-VM transfer switch VOLTAGE adjust potentiometer. and
AC voltmeter (VOLTS AC).
If wires are loose or broken, notify next higher maintenance level.
15. AC voltmeter (VOLTS AC) indicates correct voltage, but frequency meter (HERTZ) is off scale.
Step 1.
Check FREQUENCY adjust control.
Set FREQUENCY adjust control.
Step 2.
Check for loose or broken wires at back of FREQUENCY adjust control.
If wires are loose or broken, notify next higher maintenance level.
16. AC voltmeter (VOLTS AC) fluctuates.
Check back of AC voltmeter (VOLTS AC) for loose or broken wires.
If wires are loose or broken, notify next higher maintenance level.
17. Frequency meter (HERTZ) fluctuates.
Check back of frequency meter (HERTZ) for loose or broken wires.
If wires are loose or broken, notify next higher maintenance level.
3-8 Change 1
