TM10-3950-672-24-2
Abnormal Charging System Operation
Check the battery and all wiring connections.
Inspect the wiring for defects. Check all connections for
tightness and cleanliness, including the slip connectors
at the alternator and firewall, and connections at the
battery.
With ignition switch on and all wiring harness leads
A. Alternator B + terminal to ground
B. Alternator No. 1 terminal to ground
C. Alternator No. 2 terminal to ground
A zero reading indicates an open between the voltmeter
connection and the battery.
Locate and repair the open circuit.
With all accessories turned off, connect a voltmeter
across the battery. Operate engine at moderate speed.
If voltage is 15.5 or more, remove the alternator for
repair.
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