ELECTRIC SYSTEM 5540F/YB5515 SERVICE MANUAL
3-18 Published 10-21-2010, Control# 198-04
Alternator Noise. 1. Badly worn belt. 1. Replace belt and adjust.
2. Pulleys out of alignment. 2. Align fan and alternator pulleys.
3. Loose pulley. 3. Check for broken key or worn
keyway, if used.Tighten pulley nut.
4. Worn bearings. 4. Replace or repair alternator.
5. Short in rectifier diodes. 5. Replace or repair alternator.
Starter motor does not turn. 1. Open circuit, dirty or loose
connections.
1. Clean and tighten connections at
battery and starter. Check wiring
and connections between ignition
switch and starter solenoid.
2. Bad starter relay (diesel engines
only).
2. Replace starter relay.
3. Bad ignition switch. 3. Replace switch.
4. Worn starter motor, bad starter
solenoid, or internal problem in
engine.
4. Repair or replace starter, replace
solenoid, or see engine manual.
5. Dead battery. 5. Recharge or replace battery.
6. Parking brake not engaged. 6. Engage parking brake.
7. Bad neutral start relay. 7. Replace relay.
Motor runs in only one direction. 1. Defective solenoid or stuck
solenoid.
1. Jar solenoid to free contacts.
Check by applying 12 volts to coil
terminal (should hear an audible
click when energized). Replace
solenoid.
2. Defective control switch. 2. Check and replace if necessary.
Motor runs extremely hot. 1. Long period of operation. 1. Cooling-off periods are essential
to prevent overheating.
2. Insufficient battery power. 2. Check battery terminal voltage
under load. If 10 volts or less,
replace the battery.
3. Bad connection. 3. Check battery cables for
corrosion, clean and grease.
Motor runs but with insufficient power,
or with slow line speed.
1. Insufficient battery power. 1. Check battery terminal voltage
under load. If 10 volts or less,
replace the battery.
2. Bad connection. 2. Check battery cables for
corrosion, clean and grease.
Motor runs but drum does not rotate. 1. Clutch not engaged. 1. En
gage clutch.
2. Clutch engaged. 2. Disas
semble the winch to
determine cause and repair.
Problem Possible Cause Solution
Reference Only
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