Trouble shooting guide – Craftsman 247.886640 User Manual
Page 20
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TROUBLE SHOOTING GUIDE
Trouble
Possible Cause(s)
Corrective Action
Engine fails to start
Fuel tank empty, or stale fuel.
Blocked fuel line.
Choke not in ON position
Faulty spark plug.
Key not in switch on engine.
Spark plug wire disconnected.
Primer button not depressed.
Fill tank with clean, fresh gasoline. Fuel will not last over thirty
days unless a fuel stabilizer is used.
Clean fuel line,
Move switch to ON position
Clean, adjust gap or replace.
Insert key.
Connect spark plug wire.
Prime engine 5 times. See instructions for starting engine.
Engine runs erratic
Unit running on CHOKE.
Blocked fuel line or stale fuel.
Water or dirt in fuel system.
Move choke lever to OFF position.
Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last
over thirty days unless a fuel stabilizer is used.
Drain fuel tank. Refill with fresh fuel.
Loss of power
Spark plug wire loose.
Gas cap vent hole plugged.
Exhaust port plugged.
Connect and tighten spark plug wire.
Remove ice and snow from cap. Be certain vent hole is clear.
Clean engine.
Engine overheats
Carburetor not adjusted
properly.
Incorreot fuel mixture.
Contact Sears service center.
Drain fuel tank. Refill with proper fuel mixture.
Excessive vibration
Loose parts or damaged
auger.
Stop engine immediately and disconnect spark plug wire. Tighten
all bolts and nuts. Make all necessary repairs. If vibration
continues, have unit serviced by an authorized service dealer.
Unit fails to propel
itself
Incorrect adjustment of drive
cable.
Drive belt loose or damaged.
Adjust drive cable. Refer to page 9 of this manual.
Replace drive belt. Refer to page 17 of this manual.
Unit fails to
discharge snow
Discharge chute clogged.
Foreign object lodged in
auger.
Incorrect adjustment of drive
cable.
Drive belt loose or damaged.
Shear bolts have sheared.
Stop engine immediately and disconnect spark plug wire. Clean
discharge chute and inside of auger housing.
Stop engine immediately and disconnect spark plug wire. Remove
object from auger.
Adjust drive cable. Refer to page 9 of this manual.
Replace drive belt. Refer to page 17 of this manual.
Replace with new shear bolts.
NOTE:
For repairs beyond the minor adjustments listed above, please contact your nearest Sears service center.
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