Troubleshooting - Cub Cadet 500 Series Operator's Manual

Troubleshooting

Problem
Engine fails to start
Engine running erratically/
inconsistent RPM (hunting or
surging)
Engine overheats
Excessive vibration
Loss of power
Unit fails to propel itself
Unit fails to discharge snow
Engine fails to start
Chute fails to easily rotate 180
degrees
Chute does not stay stationary
while throwing snow using an
overhead chute control.
Cause
1. Choke not in CHOKE position.
2. Spark plug wire disconnected.
3. Fuel tank empty or stale fuel.
4. Engine not primed.
5. Faulty spark plug.
6. Key not in ignition on engine.
1. Engine running on CHOKE.
2. Stale fuel.
3. Water or dirt in fuel system.
4. Carburetor out of adjustment.
5. Engine over-governed
1. Carburetor not adjusted properly.
1. Loose parts or damaged auger.
1. Spark plug wire loose.
2. Gas cap vent hole plugged.
1. Drive control cable in need of
adjustment.
2. Drive belt loose or damaged.
3. Friction wheel worn.
1. Chute assembly clogged.
2. Foreign object lodged in auger.
3. Auger control cable in need of
adjustment.
4. Auger belt loose or damaged.
5. Shear pin(s) sheared.
1. Extension cord not connected (when
using electric start button, on models so
equipped)
1. Chute assembled incorrectly.
1. Insufficient tension applied to chute
control.
Remedy
1. Move choke to CHOKE position.
2. Connect wire to spark plug.
3. Fill tank with clean, fresh gasoline.
4. Prime engine as instructed in the Operation section.
5. Clean, adjust gap, or replace.
6. Insert key fully into the switch.
1. Move choke lever to RUN position.
2. Fill tank with clean, fresh gasoline.
3. Drain fuel tank. Refill with fresh fuel.
4. Contact an authorized Service Center.
5. Contact an authorized Service Center.
1. Contact an authorized Service Center.
1. Stop engine immediately and disconnect spark plug wire.
Tighten all bolts and nuts. If vibration continues, have unit
serviced by an authorized Service Center.
1. Connect and tighten spark plug wire.
2. Remove ice and snow from gas cap. Be certain vent hole
is clear.
1. Adjust drive control cable. Refer to Maintenance &
Adjustments section.
2. Replace drive belt. Refer to Service section
3. Replace friction wheel. Refer to Service section.
1. Stop engine immediately and disconnect spark plug wire.
Clean chute assembly and inside of auger housing with
clean-out tool or a stick.
2. Stop engine immediately and disconnect spark plug wire.
Remove object from auger with clean-out tool or a stick.
3. Refer to Auger Control Test.
4. Refer to Maintenance & Adjustments section.
5. Replace with new shear pin(s).
1. Connect one end of the extension cord to the electric
starter outlet and the other end to a three-prong 120-volt,
grounded, AC outlet.
1. Unassemble chute control and reassemble as directed in
the Assembly & Set-up section.
2. Refer to the Maintenance & Adjustments section to adjust
chute preload.
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