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TM 9-2320-364-20-2
2-1656
54. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING
(200 AMP) (CONT).
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If 24 vdc is not measured, fault is
with pressure switch, wire
1020B, or wire 1020A.
YES
NO
Go to Step 7 of this
Fault.
5.
Is at least 24 vdc measured
at voltage regulator energize
terminal?
WARNING
Read WARNING
on Page 2-1657
Both voltmeters indicate low
charge.
Batteries OK.
Fuel pump operates indicating
24 vdc present at CB24.
Alternator belts OK.
Fusible link loop OK.
Wire 1275 OK.
Alternator OK.
Voltage regulator OK.
Wire 1020A faulty.
Oil pressure switch faulty.
Wire 1020B faulty.
Go to Step 9 of this
Fault.
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