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TM 9-2320-364-20-2
2-1612
50. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING
(145 AMP) (CONT).
Batteries OK.
Fuel pump operates indicating
24 vdc present at DUVAC
controller IGN terminal.
Alternator belts OK.
DUVAC controller OK.
Wire 1278 OK.
Jumperwire OK.
Alternator OK.
At least 5 vdc are not
measured on wire 1344 at
alternator field coil terminal.
Wire 1344 between alternator
and regulator faulty.
Brown wire between DUVAC
controller and regulator faulty.
Wire 1435 between DUVAC
controller and ground faulty.
Black wire between regulator
and ground faulty.
Wire 1274 between DUVAC
controller and batteries faulty.
Orange wire between DUVAC
controller and regulator faulty.
Red wire between DUVAC
controller and regulator faulty.
Regulator faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If field voltage is not supplied to
the alternator through wire
1344, alternator will not charge.
YES
NO
Repair wire 1344 (see
schematic Fig 2-39) or
notify DS
Maintenance. Verify
repair, go to Step 14 of
this Fault.
7.
Is continuity measured on
wire 1344 between alternator
and regulator connector
MC22?
WARNING
Read WARNING
on Page 2-1613
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