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TM 9-2320-364-20-2
2-1614
50. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING
(145 AMP) (CONT).
Both voltmeters indicate low
charge.
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.
Wire 1344 OK.
Wire 1274 between DUVAC
controller and batteries faulty.
Brown wire between DUVAC
controller and regulator faulty.
Wire 1435 between DUVAC
controller and ground faulty.
Black wire between regulator
and ground faulty.
Red wire between DUVAC
controller and regulator faulty.
Orange wire between DUVAC
controller and regulator faulty.
Regulator faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 10-14 vdc are not measured
on wire 1274, system voltage is
not being supplied to the regu-
lator and alternator will not
charge.
YES
NO
Repair wire 1274 (see
schematic Fig 2-39) or
notify DS
Maintenance. Verify
repair, go to Step 14 of
this Fault.
8.
Are 10-14 vdc measured on
wire 1274 at DUVAC controller
terminal 1?
WARNING
Read WARNING
on Page 2-1615
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