TM 5-3010-253-14
Table 1-2. TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
NO ELECTRICAL POWER TO SECTION - Cont
Step 1.
Observe voltage and frequency for phases A, B, and C. Read 115
5 V,60 Hz.
(a) If voltage and frequency are correct, proceed to step 2.
(b) If voltage and frequency are incorrect, notify power supply
supervisor.
CAUTION
Do not energize section if voltage or frequency is not correct.
Damage
to equipment may result.
Step 2.
Press phase test switch on power panel for A, B, and C.
(a) If phases A, B, and C are correct, proceed to step 3.
(b) If incorrect phase lamp lights, notify power supply
supervisor.
CAUTION
Do not energize section if incorrect phase lamp lights. Damage to equipment
may result.
Step 3.
Check safety switch position.
(a) If safety switch is ON, proceed to step 4.
(b) If safety switch is OFF, turn ON.
Step 4.
Check main circuit breaker position.
(a) If circuit breaker is ON, refer to direct/general support
maintenance.
(b) If circuit breaker is OFF, turn ON.
(c) If circuit breaker trips repeatedly, notify power supply
supervisor.
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