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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 De old chain when it becomes
worn or damaged. Use only the Low-
Kickback replacement
chain specified in
the repair parts list. The correct replace-
ment 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 Drake
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.
Tel(/sioning
R(_°°
a_'_c_ _
5. Slide guide bar behind clutch drum
until guide bar stops against clutch
drum sprocket.
6.
Remove the old chain.
7. Carefully
remove new chain from
package.
Hold chain with the drive
links as shown.
.,¢ Cutters
Depth Gauge
8.
Place chain overand
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 chain is
snug in the guide bar groove.
En-
sure all drive links are in the bar
groove.
12. Install the chain brake.
13. Install chain brake nuts; finger
tighten only. Do not tighten any fur-
ther at this point.
Proceed to
CHAIN ADJUSTMEN_
CHAIN ADJUSTMENT
See CHAIN TENSION in MAINTENANCE
section.
CARBURETOR
ADJUSTMENT
IIL
=
_I_WARNING:
The chain will be
moving
during most of this procedure.
Wear your protective
equipment
and
observe all safety precautions.
The
chain must not move 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:
• Chain moves at idle. See IDLE
SPEED~T adjusting
procedure.
• Saw will not idle. See IDLE SPEED-T
adjusting
procedure.
Idle Speed-T
Allow engine to idle. If the chain
moves, idle is too fast.
If the engine
stalls, idle is too slow. Adjust speed
until engine runs without chain move-
ment (idle too fast) or stalling (idle too
slow). The idle speed screw is located
in the area above the primer bulb and
is labeled T.
• Turn idle screw (T) clockwise
to in-
crease engine speed.
• Turn idle screw (T) counterclockwise
to decrease
engine speed.
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.
17
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