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4.
Clean the spark arresting
screen
gently with a wire brush. Replace
screen if breaks are found.
5.
Replace any broken or cracked
muffler parts.
6. Reinstall spark arresting screen, ex-
haust outlet cover, screw and nuts.
Tighten securely.
REPLACE
SPARK PLUG
The spark plug should be replaced
each year to ensure the engine starts
easier and runs better. Ignition timing
is fixed and nonadjustable.
1. Loosen knob on air filter cover.
2.
Remove air filter cover.
3.
Pull off the spark plug boot.
4.
Remove spark plug from cylinder
and discard.
5.
Replace with Champion
RZ-7C
spark plug and tighten securely
with
a 3/4
inch (19 mm) socket
wrench. Spark plug gap should be
0.025 inch (0,6 mm).
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
oot
Air Filter _ _,-_'-'_'-_/_
Cover
REPLACE
FUEL FILTER
To replace fuel filter, drain your unit by
running it dry of fuel. Remove fuel cap
and its connected
retainer from tank.
Pull filter from tank and remove from
line. Replace and reassemble.
,_WARNING:
Disconnect
the
spark plug before performing
mainte-
nance, service, or adjustments
except
for carburetor
adjustments.
CHAIN SHARPENING
Chain sharpening
requires special
tools. You can purchase
sharpening
tools at Sears or go to a professional
chain sharpener.
CHAIN REPLACEMENT
,_
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 spe-
cified in the repair parts list. The cor-
rect 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
bar nuts.
3. Remove chain brake.
Chain brake /4,'_ ,
_
Bar nuts
\
Chain adjustment too!
(Bar tool)
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.
................
/
Tensioning Rack
/__ --,_
17
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