ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
TABLE 2-6. UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
23.
AC VOLTMETER (VOLTS AC) VOLTAGF FLUCTUATIS.
Step 1.
Check for loose electrical connections, refer to Electrical Schematic FO-1 .
a. If no loose connections, do Step 2.
b. If loose, tighten electrical connections.
Step 2.
Test for defective AC Voltmeter (VOLTS AC), paragraph 2-31.2.
a. If AC Voltmeter (VOLTS AC) is not defective, do Step 3.
b. If defective, replace AC Voltmeter (VOLTS AC), paragraph 2-31.
Step 3.
Test for defective VOLTAGE adjust potentiometer, paragraph 2-34.3.
a. If VOLTAGE adjust potentiometer is not defective, do Step 4.
b. If defective, replace VOLTAGE adjust potentiometer, paragraph 2-34.
Step 4.
Test for defective AM-VM transfer switch, paragraph 2-39.3.
a. If AM-VM transfer switch is not defective, do Step 5.
b. If defective, replace AM-VM transfer switch, paragraph 2-39.
Step 5.
Check for defective load measuring unit, paragraph 2-65.
a. If defective, replace load measuring unit, paragraph 265.2.
b. If load measuring unit is not defective and trouble persists, notify next higher level of
maintenance.
24.
FRFOUFNCY MFTFR (IFRT7) FRFQUINCY FLUCTUATES.
Step 1.
Check for erratic engine operation.
Refer to Malfunction 4 "Engine Runs Erratically or Stalls Frequently" If engine operating properly,
do Step 2.
Step 2.
Test for defective frequency transducer, paragraph 2-52.2.
a. If frequency transducer is not defective, do Step 3.
b. If defective, replace frequency transducer, paragraph 2-52.
Step 3.
Test for defective FREQUENCY meter (HERTZ), paragraph 2-28.2.
a. If defective, replace FREQUENCY meter (HERTZ), paragraph 2-28.
b. If FREQUENCY meter (HERTZ) is not defective and trouble persists, notify next higher level of
maintenance.
Change 4 2-22.1/(2-22.2 blank)
