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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
NOTE:
For repairs beyond the minor adjustments listed above, please contact your local Sears Parts & Repair
Center.
TROUBLESHOOTING
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 area clogged.
2. Foreign object lodged in
impeller.
3. Low engine RPM.
4. Vacuum bag is full.
1. Low engine RPM.
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. Disconnect fuel line at carburetor to drain fuel
tank; 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 Parts & Repair Center.
6. Always run engine at full throttle.
1. Stop engine immediately and disconnect spark
plug wire. Have unit serviced by a Sears Parts &
Repair Center.
1. Contact your Sears Parts & Repair 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 Parts
& Repair Center.
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