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TM 9-2320-364-20-2
2-1660
7.
Repair wire 1020A
(see schematic
Fig 2-40) or notify
DS Maintenance.
Verify repair, go to
Step 9 of this Fault.
YES
NO
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 22 to 28 vdc is not present,
wire 1020A is faulty.
Are 22 to 28 vdc measured on
wire 1020A at oil pressure
switch when engine is
running?
WARNING
Read WARNING
on Page 2-1661
54. 12 AND 24 VOLT SYSTEMS NOT CHARGING OR UNDER CHARGING
(200 AMP) (CONT).
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.
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