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TROUBLESHOOTING
1. Lubricate with silicone spray.
2. Install more line. Refer to “Line Replacement”
earlier in this manual.
3. Pull lines while alternately pressing down on and
releasing bump knob.
4. Remove line from spool and rewind. Refer to “Line
Replacement” earlier in this manual.
5. Advance line at full throttle.
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Clean threads and lubricate with grease - if no improve-
ment, replace bump knob.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean per instruction in Maintenance Section.
4. Turn “H”needle clockwise 1/16 - 1/8 turn
(Fig. 20)
.
1. Line welded to itself.
2. Not enough line on spool.
3. Line worn too short.
4. Line tangled on spool.
5. Engine speed too slow.
1. Cutting tall grass at ground
level.
2. Operating trimmer at part
throttle.
Screw threads dirty or damaged.
1. Operating trimmer at part
throttle
2. Check oil/fuel mixture.
3. Air filter dirty.
4. Carburetor requires adjust-
ment.
Line will not advance:
Grass wraps around
shaft housing and string
head:
Bump knob hard to
turn:
Oil drips from muffler:
PROBLEMPOSSIBLE CAUSESOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE AGENT.
NOTE: The carburetor adjustment needle(s) are equipped with plastic cap(s) that prevents counterclockwise rotation from the
original factory adjustment. If your unit exhibits specific performance problem(s) where the Trouble Shooting Section recommends
a counterclockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken
to a factory authorized service agent for repair. In most cases, the needed adjustment is a simple task for the factory trained
service representative.