ARMY TM 9-6115-641-24
AIR FORCE TO 35C2-3-456-12
Table 2-6. UNIT TROUBLESHOOTING - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Test for defective BATTERY CHARGE ammeter, paragraph 2-43-2.
a. If BATTERY CHARGE ammeter is not defective, do Step 3.
b. If defective, replace BATTERY CHARGE ammeter, paragraph 2-43.
Step 3. Test for defective battery charging alternator, paragraph 2-14-2.
a. If battery charging alternator is not defective, do Step 4.
b. If defective, replace battery charging alternator, paragraph 2-14.
Step 4. Check for short in charging circuit, refer to Wiring Diagram FO-2.
If shorted, repair charging circuit.
21. AC VOLTMETER (VOLTS AC) DOES NOT INDICATE VOLTAGE.
Step 1. Test defective AC Voltmeter (VOLTS AC), paragraph 2-46-2.
a. If AC Voltmeter (VOLTS AC) is not defective, do Step 2.
b. If defective, replace AC Voltmeter (VOLTS AC), paragraph 2-46.
Step 2. Test for defective AM-VM transfer switch, paragraph 2-52-2.
a. If AM–VM transfer switch is not defective, do Step 3.
b. If defective, replace AM–VM transfer switch, paragraph 2-52.
Step 3. Test for defective VOLTAGE adjust potentiometer, paragraph 2-48-2.
a. If VOLTAGE adjust potentiometer is not defective, do Step 4.
b. If defective, replace VOLTAGE adjust potentiometer, paragraph 2-48.
Step 4. Test for defective AC voltage regulator, paragraph 2-27-2.
a. If AC voltage regulator is not defective, do Step 5.
b. If defective, replace AC voltage regulator, paragraph 2-27.
Step 5. Test for defective voltage reconnection switch, paragraph 2-64-3.
a. If voltage reconnection switch is not defective, do Step 6.
b. If defective, replace voltage reconnection switch, paragraph 2-64.
Step 6. Check AC Voltmeter circuit for breaks or loose connections, refer to Wiring Diagram FO-1.
If breaks or loose connections are found, repair circuit.
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