Quantcast 24 VDC CIRCUITS DO NOT OPERATE (CONT) - TM-9-2320-366-20-10446

 

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RESISTANCE TEST - TM-9-2320-366-20-10445
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TM-9-2320-366-20-1 M1083 Series 5-Ton 6 x 6 Medium Tactical Vehicles (MTV) Manual
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VOLTAGE TEST - TM-9-2320-366-20-10447
TM 9-2320-366-20-1
e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
8.
Voltage Test or
Service drive lights OK.
STE/ICE-R Test #89
Circuit breaker CB70 OK.
Is 24 VDC present at relay
REASON FOR QUESTION
Batteries OK.
K2 socket 87 on PDP?
100 AMP reverse polarity relay
If 24 VDC is not present,
OK.
relay K2 is faulty.
100 AMP reverse polarity relay
to power distribution panel
(PDP) 24 VDC cable OK.
Battery to 100 AMP reverse
polarity relay 24 VDC cable
NO
OK.
200 AMP reverse polarity relay
OK.
200 AMP terminal block OK.
Battery to 200 AMP terminal
YES
Replace relay K2 (para 7-9).
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 OK.
Master power switch OK.
POSSIBLE PROBLEMS
Faulty relay K2.
Faulty dashboard cable
assembly.
2-282
Change 1

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