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7,
Pull both lines and make sure the
lines are against the hub and ex-
tended full through the positioning
tunnels.
Line against the hub
Positioning
Tunnel
8. Correctly installed line will be the
same length on both ends.
CHANGING THE TRIMMER
HEAD
1. Align hole in the dust cup with the
hole in the side of the gearbox
by
rotating the arbor shaft.
2.
Insert a small screwdriver
into
aligned holes. This will keep the
shaft from turning while removing
and installing trimmer head.
CARBURETOR
IDLE SPEED
ADJUSTMENT
WARNING:
Keep others away
when making idle speed adjustments.
The trimmer head will be spinning
dur-
ing most of this procedure.
Wear your
protective
equipment
and observe all
safety precautions.
After making ad-
justments,
the trimmer head must not
move or spin at idle speed.
The carburetor
has been carefully set
at the factory. Adjustments
may be
necessary
if you notice any of the fol-
lowing conditions:
• Engine will not idle when the throttle is
released.
• The trimmer head moves or spins at
idle.
Make adjustments with the unit sup-
ported 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 adjustments.
Keep all parts of your body away from
the cutting attachment
and muffler.
To adjust idle speed:
Allow engine to idle. Adjust speed until
engine runs without trimmer head
moving or spinning
(idle too fast) or
engine stalling (idle speed too slow).
• Turn idle speed screw clockwise
to
increase
engine speed if engine
stalls or dies.
• Turn idle speed screw counterclock-
wise to decrease
engine speed if
trimmer head moves or spins at idle.
Idle Speed
Screw
Screwdriver
Arbor shaft
3. While holding the screwdriver
in
position, remove trimmer head by
turning clockwise
(looking from
bottom of unit).
4. Thread replacement trimmer head
onto the shaft by turning counter-
clockwise. Only tighten hand tight!
5.
Remove the screwdriver.
,b
Air Filter Cover
/ /
Z_
44, WARNING:
Recheck the idle
speed after each adjustment.
The
trimmer head must not move or spin at
idle speed to avoid serious
injury to
the operator
or others.
If you require further assistance
or are
unsure about performing
this proce-
dure, contact your Sears Service Cen-
ter or call our customer assistance
help line at 1-800-235-5878.
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