Troubleshooting
Alternator
Problem Possible Causes
Alternator is not charging. Alternator belt loose.
Charging circuit defective.
Energizing circuit defective.
Brushes worn or seized.
Rotor winding defective.
S
tator winding defective.
Regulator defective.
Output low or irregular. Alternator belt loose.
Char
ging circuit defective.
Energizing circuit defective.
Brushes worn or seized.
Rotor winding defective.
S
tator winding defective.
Regulator defective.
Rotor partially short-circuited.
Stator partially short-circuited.
Rectifier diode defective.
Rectifier diode short-circuited.
Battery voltage too high. In-line diode defective.
Regulator defective.
Poor connections.
Alternator noisy. Rectifier diode short-circuited.
Be
lt worn.
Alternator mounting loose.
A
lternator pulley loose.
Worn bearings.
Engine Page 3 - 18
Rev
. B
Reelmaster 335-D/3500-D