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18
TROUBLE CAUSE REMEDY
Chain does
not move
when trigger
switch is
engaged.
1. Chain tension incorrect.
2. Guide bar r ails pinched.
3. Trigger switch failur e.
4. Circuit bre aker tripped/
fuse failure.
1. See “Check Chain Tension” in
Maintenance section.
2. Repair or replace.
3. Contact an authorized service
dealer.
4. Reset circuit br eaker or replace fuse.
Chain clatters
or cuts
roughly.
1. Chain tension incorrect.
2. Cutters dam aged.
3. Chain worn.
4. Cutters dull, improperly
sharpened, or depth
gauges t oo high.
5. Sprocket worn.
1. See “Check Chain Tension” in
Maintenance Section.
2. Contact an authorized service
dealer.
3. Resharpen or replace chain.
4. See “Chain Sharpening” in
Service and Adjustments section.
5. Contact an authorized service
dealer.
1. Chain cutter tops not
filed flat.
2. Guide bar burred or
bent; rails uneven.
Chain stops
during cut.
1. See “Chain Sharpening” in
Service and Adjustments section.
2. Repair or replace guide bar .
WARNING: Always stop unit and disconnect from the power source before per-
formingalloftherecommendedremediesbelowexceptremediesthatrequireunittobe
operating.
TROUBLESHOOTING TABLE
Oil inadequat e
for bar and
chain lubrica-
tion.
1. Oil t ank empty.
2. Oil outlet clogged.
3. Guide bar oil hole
blocked.
1. Fill oil tank.
2. Contact an authorized service
dealer.
3. Remove bar and clean.
Chain cuts at
an angle.
1. Cutters damaged on
one side.
2. Chain dull on one side.
3. Guide bar bent or worn.
1. See “Chain Sharpening” in
Service and Adjustments section.
2. See “Chain Sharpening” in
Service and Adjustments section.
3. Replace guide bar.
Trimmer head
stops under a
load or does
not turn when
switch is
pressed.
1. Crowding trimmer line
against material being
cut.
2. Electrical failure.
3. Thrown circuit breaker.
4. Debris stopping head.
1. Allow tip of line to do the cutting.
2. Contact your authorized service dealer .
3. Check Breaker B ox.
4. Remove debris.
Line does no t
advance or
breaks while
cutting.
1. Line improperly routed
in head.
2. Line improperly
wound into spool.
3. Incorrect line size
4. Not enough line
outside of head.
5. Dirt buildup on unit.
1. Check line routing.
2. Rewind lin e tightly and evenly .
3. Use only 0.080 inch (2 mm) dia. line.
4. Remove cover and pull 4 inches
(10 cm) of line out of head.
5. Clean unit.
Line welds
onto spool.
1. Use only 0.080 inch (2 mm) dia. line.
2. Replace with correct spool.
3. Cut with tip of line fully extended.
1. Line size is incorrect.
2. Incorrect spool.
3. Line is being crowded
against m aterial being cut.
Line releases
continuously.
1. Line improperly
routed in head.
2. Spool damaged.
1. Check line routing.
2. Replace spool.