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MASTER SWITCH ON INDICATOR DOES NOT LIGHT
MASTER SWITCH ON INDICATOR DOES NOT LIGHTContinued - TM-9-2350-247-20-1_277
TM-9-2350-247-20-1 Crane (CAB) Components Recovery Vehicle Full Tracked: light Armored M578 (2360-00-439-6242) (EIC:3LA) Manual
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TM 9-2350-247-20-1
MASTER SWITCH ON INDICATOR DOES NOT LIGHT—Continued
0049 00
2Y
1. Turn MASTER SWITCH OFF.
2. Partially remove instrument panel (WP 0256 00).
3. Remove circuit 10 plug (1) and circuit 27 plug (2) from
instrument panel
circuit breaker
jacks (3) and (4).
4. Measure resistance between
circuit breaker
jacks (3) and (4).
5. Does
multimeter
read less than infinity?
YES
NO
2YN
1. Replace instrument panel circuit
breaker (WP 0267 00).
2. Verify no faults found.
3Y
1. Remove circuit 27D plug (1) from MASTER SWITCH ON
indicator jack (2).
2. Measure
resistance
between circuit 27 plug (3) and circuit 27D
plug (1).
3. Does
multimeter
read 0 ohms?
YES
NO
3YN
1. Repair power/instrument panel
wiring harness (WP 0294 00).
2. Verify no faults found.
0049 00-2
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