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II_I_WARNING:
Disconnect the spark
plug before performing maintenance,
service, or adjustments,
except for car-
buretor adjustments
CHAIN SHARPENING
Chain sharpening
requires special
tools. You can purchase sharpening
tools at Sears or go to a professional
chain sharpener.
CHAIN REPLACEMENT
II_WARNING:
Wear protective
gloves when handling chain. The
chain is sharp and can cut you even
when it is not moving.
It is normal for a new chain to stretch
during the first 15 minutes of operation.
You should recheck your chain tension
frequently and adjust the chain tension
as required. See CHAIN TENSION sec-
tion.
Replace the old chain when it be-
comes worn or damaged.
Use only
the Low Kickback replacement chain
specified in the repair parts list. The
correct replacement
bar and chain is
also specified on a decal located on
the chain saw.
See your Sears Service Center to re-
place and sharpen individual cutters
on your chain.
TO REPLACE CHAIN:
1. Move ON/STOP switch to the STOP
position.
2. Remove chain brake nuts.
3. Remove chain brake.
Chain
Brake
Clutch Drum
Chain Brake
_
Nuts
4. Turn adjusting screw on bar coun-
terclockwise
to move the tension-
ing rack as far as it will go toward
the front of the bar.
5. Slide guide bar behind clutch drum
until guide bar stops against clutch
drum sprocket.
6. Remove the old chain.
7. Carefully remove the new chain
from the package.
Hold chain with
the drive links as shown.
Cutters
Depth Gauge
Drive Links
8. Place chain over and behind
clutch, fitting the drive links in the
clutch drum sprocket.
9. Fit the bottom of the drive links be-
tween the teeth in the sprocket in
the nose of the guide bar.
10. Fit chain drive links into bar
groove.
11. Pull guide bar forward until the
chain is snug in the guide bar
igroove. Ensure all drive links are
n the bar groove.
12. Install the chain brake.
13. Install chain brake nuts; finger
tighten only. Do not tighten any
further at this point. Proceed to
CHAIN ADJUSTMENT.
CHAIN ADJUSTMENT
See CHAIN TENSION in the MAINTE-
NANCE section.
CARBURETOR
ADJUSTMENT
_WARNING:
The chain will be mov-
ing during most of this procedure. Wear
your protective equipment and observe
all safety precautions. During the low
speed mixture adjustment recheck idle
speed after each turn of the screw. The
chain must not move at idle speed.
Carburetor adjustment is critical and if
done improperly can permanently
damage the engine as well as the car-
buretor. If you require further assis-
tance or are unsure about performing
this procedure,
call our customer as-
sistance help line at 1-800-235-5878.
Old fuel, a dirty air filter, dirty fuel filter,
or flooding may give the impression of
an improperly adjusted carburetor.
Check these conditions before adjust-
ing the carburetor.
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