Problem
Engine fails to start
Loss of power; operation erratic
Too much vibration
Engine overheats
Unit does not discharge
Rate of discharge slows considerably or composition of discharged material changes
Possible Cause(s)
1.Fuel tank empty or stale fuel.
2.Spark plug wire disconnected.
3.Cannot pull recoil cord.
4.Choke not in ON position.
5.Faulty spark plug.
6.Safety switch not depressed.
7.Safety switch wire is not connected to engine or not properly grounded.
1.Spark plug wire loose.
2.Unit running on CHOKE.
3.Blocked fuel line or stale fuel.
4.Water or dirt in fuel system.
5.Carburetor out of adjustment.
6.Low engine RPM.
1.Loose parts or damaged impeller.
1.Carburetor not adjusted
2.Engine oil level low
1.Discharge chute clogged.
2.Foreign object lodged in impeller.
3.Low engineRPM.
4.Vacuum bag is full.
1.Low engineRPM.
2.Chipper blade dull.
Corrective Action
1.Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is added.
2.Connect wire to spark plug.
3.Obstruction lodged in impeller. Disconnect spark plug wire and remove lodged object.
4.Move CHOKE to ON position.
5.Clean, adjust gap or replace.
6.Safety switch must be depressed by the front tab on the bag handle when securing the bag.
7.Connect safety switch wire to engine connector and ground to mounting bracket.
1.Connect and tighten spark plug wire.
2.Move choke lever to OFF position.
3.Clean fuel line; fill tank with clean fresh
gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used.
4.Disconnect fuel line at carburetor to drain fuel tank. Refill with fresh fuel.
5.Contact your Sears Service Center.
6.Always run engine at full throttle.
1.Stop engine immediately and disconnect spark
plug wire. Have unit serviced by a Sears Service Center.
1.Contact your Sears Service Center.
2.Fill crankcase with proper selection of oil.
1.Stop engine immediately and disconnect spark plug wire. Clean flail screen and inside of discharge opening. See Maintenance section of this manual.
2.Stop engine immediately and disconnect spark plug wire. Remove lodged object.
3.Always run engine at full throttle.
4.Empty bag.
1.Always run engine at full throttle.
2.Replace chipper blade or see your Sears Service Center.
NOTE: For repairs beyond
the minor adjustments listed above, please contact your local Sears Service Center.
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