Table 1-2. TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. NO ELECTRICAL POWER TO SECTION.
WARNING
Death or serious injury may result.
Do not perform any electrical mainte-
nance or make electrical connections or disconnections at main power recep-
tacle when power cable is energized.
Step 1.
Observe voltage and frequency for phases A, B, and C. Read 115
± 5 V , 6 0 ± 1 H z .
(a) If voltage and frequency are correct, proceed to step 2.
(b) If voltage and frequency are incorrect, notify power supply
s u p e r v i s o r.
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 ) I f i n c o r r e c t p h a s e l a m p l i g h t s , n o t i f y p o w e r s u p p ly
s u p e r v i s o r.
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.
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TM 5-6675-320-14
