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24 VDC CIRCUITS DO NOT OPERATE (CONT) |
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 TM 9-2320-366-20-1
e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)
KNOWN INFO
TEST OPTIONS
17.
Continuity Test or
Service drive lights OK.
STE/ICE-R Test #91
Circuit breaker CB70 OK.
Is continuity present from
REASON FOR QUESTION
Batteries OK.
200 AMP terminal block
If continuity is not present,
24V LOAD left terminal stud
POSSIBLE PROBLEMS
200 AMP terminal block is
to right terminal stud?
faulty.
Faulty 200 AMP reverse
polarity relay.
Faulty 200 AMP terminal
block.
NO
Faulty battery to 200 AMP
terminal block 24 VDC cable
assembly.
Faulty 200 AMP terminal block
to reverse polarity relay 24
Replace 200 AMP terminal block
VDC battery cable.
YES
(para 20-58).
Faulty 200 AMP terminal block
to reverse polarity relay 24
VDC load cable.
Faulty 200 AMP terminal block
to power distribution panel
(PDP) 24 VDC cable.
2-284.16
Change 1
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