ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT)

TM 9-2320-366-20-2

e92. ELECTRICAL SYSTEM DOES NOT MAINTAIN A CHARGE (CONT)

KNOWN INFO

TEST OPTIONS

Engine oil pressure indicator

Continuity Test or

light illuminates.

STE/ICE-R Test #91

Is continuity present from

OIL PRESS gage operates.

REASON FOR QUESTION

terminal lug TL58 to

Engine starts.

If continuity is not present,

ground?

Alternator belts OK.

alternator ground strap is

Battery(ies) OK.

faulty.

Engine oil pressure switch OK.

Relay K11 OK.

Dashboard cable assembly OK.

Engine control cable assembly

OK.

POSSIBLE PROBLEMS

Faulty alternator ground strap.

Faulty alternator.

Replace alternator ground strap

YES

Faulty voltage regulator.

(para 7-71).

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.

2-1056.2

Change 1