Troubleshooting - Craftsman 47.881701 Operator's Manual

Electric start 22-inch snow thrower
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WARNING
Before performing any type of maintenance/service, disengage all controls and stop
the engine. Wait until all moving parts have come to a complete stop. Remove the key
to prevent unintended starting. Always wear safety glasses during operation or while
performing any adjustments or repairs.
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

TROUBLESHOOTING

Cause
1.
Choke control not in Choke position.
2.
Spark plug wire disconnected.
3.
Faulty spark plug.
4.
Fuel tank empty or stale fuel.
5.
Engine not primed.
6.
Safety key not inserted.
7.
Extension cord not connected (when using electric
start button)
1.
Engine running on choke.
2.
Fuel line blocked, or stale fuel.
3.
Water or dirt in fuel system.
4.
Carburetor out of adjustment.
5.
Over-governed engine
1.
Carburetor not adjusted properly.
1.
Loose parts or damaged auger.
1.
Spark plug wire loose.
2.
Gas cap vent hole plugged.
1.
Drive cable in need of adjustment.
2.
Drive belt loose or damaged.
1.
Chute assembly clogged.
2.
Foreign object lodged in auger.
3.
Auger cable in need of adjustment.
4.
Auger belt loose or damaged.
5.
Shear pin(s) sheared.
This section addresses minor service issues. To locate the nearest Sears Service
Center or to schedule service, simply contact Sears at 1-800-4-MY-HOME®.
1.
Move choke control to Choke position.
2.
Connect wire to spark plug.
3.
Clean, adjust gap, or replace.
4.
Fill tank with clean, fresh gasoline.
5.
Prime engine as instructed in the Operation Section.
6.
Insert key fully into the switch.
7.
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.
Move choke lever to RUN position.
2.
Clean fuel line and fill tank with fresh, clean gasoline.
3.
Run engine until it stops. Refill with fresh fuel.
4.
Contact a Sears Service Center.
5.
Contact a Sears Service Center.
1.
Contact your Sears Parts & Repair Center.
1.
Stop engine immediately and disconnect spark plug wire.
Tighten all bolts and nuts. If vibration continues, have unit
serviced by a Sears Parts & Repair 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 Service and Maintenance
section.
2.
Replace drive belt. Refer to Service & Maint. 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.
Adjust auger control cable. Refer to Assembly section.
4.
Replace auger belt. Refer to Service and Maintenance section.
5.
Replace with new shear pin(s).
21
Remedy

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