TROUBLESHOOTING
CAUSE
PROBLEM
Does not start
Clean/replace
air
Loss of power
Excessive
Vibration
Starter
rope
Loss
of head
drive
Hard to push
Poor trimming
performance
Trimmer
head
does
not
retain
mine
.
filter.
2. Out of fuel.
3. Stale fuel.
4. Water
in fuel.
5. Spark
plug wire is
disconnected.
6. Bad spark
plug.
7. Throttle
control
lever not
in correct
position
_IT
equippea).
1. Dirty air filter.
2. Buildup
of grass,
leaves,
and trash under trimmer.
3. Too much oil in engine.
4. Walking
speed
too fast.
1. Lines uneven
or broken.
2. Loose
nuts or bolts.
1. Bent engine
crankshaft.
1. Belt not driving.
1. Handle
height
position
not
right for you.
1. Trimmer line length is
too short.
2. Throttle
control
lever not
in correct
position
V.l_,,i..l_vv,
i.
1. Trimmer
line not
properly
installed.
2. Broken
line retainer
clip.
3. Incorrect
size of
CORRECTION
Dirty air filter.
1.
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
air filter.
2. Clean
underside
of trimmer
and trimmer
head.
3. Check
oil level.
4. Trim at slower walking
1. Check
trimmer
lines.
2. Check
all hardware,
including
engine
bolts.
1. Contact
a Sears
or other
1. Put belt on pulleys
or
replace
belt _t broken.
1. Adjust handle height
to suit.
1. If line is worn or broken
to
half original
length,
replace
line.
2. Move throttle
lever to FAST
position.
1. Follow instructions
in the
Maintenance
section.
2. Replace
string carrier
plate
assembly.
3. Use .155 diameter
17