JLG sky trak mmv Service Manual page 525

Before troubleshooting any
electrical circuit, ALWAYS
begin by checking the
following:
1. Fuses
2. All connections relating
to circuit are clean and
tight
Model MMV Rev. 12/04
Dash panel charge
indicator ON continuously
above idle speed.
Check alternator at
terminal "B" for voltage output
of 24-27.5 volts.
If OK
Check alternator at
terminal "R" for voltage output
of 12-14 volts.
If OK
Check wire "23A" for voltage
output of 6-7 volts.
If OK
Replace dash panel.
Electrical System
On alternator, check wires
Not
2AM (BLK) and 2L (BLK)
OK
to ground.
If OK
Replace alternator.
Not
Find open connection.
OK
Not
Find open connection.
OK
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