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TROUBLESHOOTING CHART
PROBLEM CAUSE
Does not start 1. Dirty air filter.
2. Out of fuel.
3. Stale fuel.
4. Water in fuel.
.
6.
7.
Loss of power 1.
2.
3
4.
Excessive 1.
Vibration 2.
3.
Starter rope hard 1.
to pull
Loss of head 1.
drive
Poor trimming 1.
performance
2.
Trimmer head 1.
does not
retain line 2.
3.
Spark .plug wire is
disconnected.
Bad spark plug.
Throttle control lever not
in correct position
(if equipped).
Dirty air filter.
Buildup of grass, leaves,
and trash under trimmer.
Too much oil in engine.
Walking speed too fast.
CORRECTION
1. Clean/replace air filter.
2. Fill fuel tank.
3. Drain tank and refill with
fresh clean fuel.
4. Drain fuel tank and
carburetor and refill tank
with fresh gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Move throttle lever to FAST
position.
1. Clean/replace a_r filter.
2. Clean underside of trimmer
and trimmer head.
3. Check oil level.
4. Trim at slower walking
speed.
Lines uneven or broken. 1. Check trimmer lines.
Loose nuts or bolts. 2. Check all hardware,
including engine bolts.
Damaged tnmmer head. 3. Check/repair trimmer head.
Bent engine crankshaft. 1. Contact a Sears or other
qualified service center.
Belt not driving. 1. Put belt on pulleys or
replace belt if broken.
Trimmer line length is
too short.
Throttle control lever not
in correct position
(if equipped).
Trimmer line not
properly installed.
Broken line retainer clip.
Incorrect size of
trimmer line.
1. If line is worn or broken to
half original length,
replace line.
2. Move throttle lever to FAST
position.
1. Follow instructions in
Maintenance section.
2. Replace string carrier plate
assembly.
3. Use .130 diameter
trimmer line.
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