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Problem Cause Remedy
Engine fails tostart 1. Spark plugwire disconnected. 1. Connect wire to spark plug.
, 2. Fuel tank empty or stale fuel. 2. Fill tank with clean, fresh gasoline.
3. Throttle control lever not in 3. Move throttle lever to FAST position.
correct starting position.
4. Choke not in CHOKE position. 4. Move choke to CHOKE position.
5. Engine not primed. 5. Prime engine.
6. BIocked fuel system.
7. Faulty spark plug.
Engine runs erratic 1. Spark plugwire loose.
2. Unit running on CHOKE.
3. Dirt in fuel system
4. Stale fuel.
5. Dirty air cleaner.
6. Carburetor out of adjustment.
Too much vibration 1. Loose parts or damaged
impeller.
2. Blade(s) damaged or not
properly sharpened.
Engine overheats 1. Engine oil level low.
2. Dirty air cleaner.
3. Carburetor not adjusted
properly.
6. See Sears Service Center to have fuel
system cleaned.
7. Clean, adjust gap, or replace.
1. Connect and tighten spark plug wire.
2. Move choke lever to OFF position.
3. See Sears Service Center to have fuel
system cleaned.
4. See Sears Service Center to have fuel
system cleaned. Fill tank with clean, fresh
, gasoline.
5. Clean or replace air cleaner.
6. See authorized service dealer.
1. See Sears Service Center.
2. Replace or sharpen blade(s).
1. Fill crankcase with proper oil.
2. Clean or replace air cleaner.
3. See Sears Service Center.
Occasional skip 1. Spark plug gap too narrow. 1. Adjust gap to.030" (0.76 mm)
(hesitates) at high
speed
Unit does not 1. D!scharge chute clogged.
discharge
2. Foreign object lodged in
reduction chamber.
3. Lowengine RPM.
1. Lowengine RPM.
2. Chipper blades or shredder
blade dull.
1. Stop engine immediately and disconnect
spark plug wire. Clean shredder screen and
inside of discharge opening.
2. Stop engine and disconnect spark plug wire.
Remove lodged object.
3. Always run engine at full throttle.
1. Always run engine with the throttle in the
FAST position.
2. Replace blades or see your Sears Service
Center.
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 Service Center.
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