Guide Slot
Guide
Slot
9.Insert the ends of the lines through exit holes in the sides of the cover.
10.Place the spool in the cover.
Spool
Cover
11.Make sure the lines are not caught be- tween the rim of the spool and the wall of the cover.
12.Reinstall the spool and cover onto the trimmer head. Push until cover snaps into place.
REPLACING THE CUTTING HEAD
1.Align hole in the dust cup with the hole in the side of the gearbox by rotating the dust cup.
2.Insert a small screwdriver into aligned holes. This will keep the shaft from turning while removing and installing trimmer head.
Screwdriver
3.While holding the screwdriver in position, remove trimmer head by turning clock- wise.
4.Thread replacement trimmer head onto the shaft by turning counterclockwise. Tighten until secure.
5.Remove the screwdriver.
CARBURETOR ADJUSTMENT
WARNING: Keep others away when making idle speed adjustments. The trimmer head, blade or any optional attachment will be spinning during most of this procedure. Wear your protective equipment and observe all safe- ty precautions. After making adjustments, the trimmer head, blade or any optional attachment must not move/spin at idle speed.
The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions:
S Engine will not idle when the throttle is released.
S The trimmer head, blade or optional attachment moves/spins at idle.
Make adjustments with the unit supported so the cutting attachment is off the ground and will not make contact with any object. Hold the unit by hand while running and making ad- justments. Keep all parts of your body away from the cutting attachment and muffler.
Idle Speed Adjustment
Allow engine to idle. Adjust speed until engine runs without trimmer head, blade or optional attachment moving or spinning (idle too fast) or stalling (idle speed too slow).
S Turn idle speed screw clockwise to increase engine speed if engine stalls or dies.
STurn idle speed screw counterclockwise to decrease engine speed if trimmer head, blade or optional attachment moves or spins at idle.
WARNING: Recheck the idle speed after each adjustment. The trimmer head, blade or optional attachment must not move or spin at idle speed to avoid serious injury to the operator or others.
Air Filter Cover
Idle Speed 
Screw
If you require further assistance or are unsure about performing this procedure, contact an
authorized | service dealer or call | ||
6723. | |||
13
