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Page Title:
ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT) |
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 TM 9-2320-366-20-2
e92. ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT)
KNOWN INFO
TEST OPTIONS
2.
Engine oil pressure indicator
Visual Inspection
light illuminates.
Does engine oil pressure
REASON FOR QUESTION
OIL PRESS gage operates.
indicator light go out before
Engine starts.
the OIL PRESS gage reaches
If oil pressure indicator light
Alternator belts OK.
20 PSI?
remains illuminated, oil
Battery(ies) OK.
pressure switch is faulty.
POSSIBLE PROBLEMS
Faulty engine oil pressure
switch.
Faulty relay K11.
NO
Faulty dashboard cable
assembly.
Faulty engine control cable
assembly.
Faulty alternator ground strap.
Replace engine oil pressure
Faulty alternator.
YES
switch (para 7-48).
Faulty voltage regulator.
Faulty 100 AMP alternator to
reverse polarity relay 12 VDC
cable.
Faulty 200 AMP alternator to
terminal block 12 VDC cable.
Faulty 100 AMP alternator to
reverse polarity relay 24 VDC
cable.
Faulty 200 AMP alternator to
terminal block 24 VDC cable.
2-1052
Change 1
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