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Page Title:
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)
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
14.
Continuity Test or
Service drive lights OK.
STE/ICE-R Test #91
Is continuity present from
Circuit breaker CB70 OK.
REASON FOR QUESTION
master power switch
Batteries OK.
If continuity is not present,
connector pin 1 to pin 5?
100 AMP reverse polarity relay
master power switch is
OK.
faulty.
100 AMP reverse polarity relay
to power distribution panel
(PDP) 24 VDC cable OK.
NO
Battery to 100 AMP reverse
polarity relay 24 VDC cable
OK.
200 AMP reverse polarity
relay OK.
Replace master power
200 AMP terminal block OK.
YES
switch (para 7-18).
Battery to 200 AMP terminal
block 24 VDC cable
assembly OK.
200 AMP terminal block to
reverse polarity relay 24
VDC battery cable OK.
200 AMP terminal block to
reverse polarity relay 24
VDC load cable OK.
200 AMP terminal block to
power distribution panel
(PDP) 24 VDC cable.
POSSIBLE PROBLEMS
Faulty master power switch.
Faulty dashboard cable
assembly.
2-284.10
Change 1
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