13
Adjusting Screw
5. Check the tension by lifting the chain
from the guide bar. Remove some of
the stiffness in the chain by pulling
down and letting go of the chain sever-
al times.
6. Continue turning the adjusting screw
until the tension is correct (see step 4).
7. Tighten bar clamp nuts with a wrench.
8. Recheck chain tension.
WARNING:
If the saw is operated
with a loose chain, the chain could jump
off the guide bar and result in serious in-
jury.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A dull
chain makes a sawdust powder and cuts
slowly. See
CHAIN SHARPENING
in the
SERVICE AND ADJUSTMENTS
section.
CHECK GUIDE BAR
Conditions which require guide bar main-
tenance:
S
Saw cuts to one side or at an angle.
S
Saw has to be forced through the cut.
S
Inadequate supply of oil to the bar and
chain.
Check the condition of the guide bar each
time the chain is sharpened. A worn guide
bar will damage the chain and make cut-
ting difficult.
After each use, with unit disconnected
from power source, clean all sawdust from
the guide bar and sprocket hole.
To maintain guide bar:
S
Disconnect the chain saw from the pow-
er source.
S
Loosen and remove bar clamp nuts.
Remove bar and chain from saw.
S
Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
S
Burring of guide bar rails is a normal
process of rail wear. Remove these
burrs with a flat file.
S
When rail top is uneven, use a flat file to
restore square edges and sides.
Correct Groove
Worn Groove
File Rail Edges
and Sides
Square
Replace the guide bar when the groove is
worn, the guide bar is bent or crack--ed, or
when excess heating or burring of the rails
occurs. If replacement is necessary, use
only the guide bar specified for your saw in
the repair parts list or on the decal located
on the chain saw.
LUBRICATION
Bar Oil Fill Cap
S
Check bar and chain oil before use and
every 15 minutes while operating the
saw. See
GUIDE BAR AND CHAIN OIL
un-
der the
OPERATION
section.
INSPECT AND CLEAN UNIT AND
LABELS
S
After each use, inspect complete unit for
loose or damaged parts. Clean the unit
and labels using a damp cloth with a
mild detergent.
S
Wipe off the unit and labels with a clean
dry cloth.
SERVICE AND ADJUSTMENTS
CHAIN SHARPENING
Chain sharpening requires special tools.
You can purchase sharpening tools at an
authorized service dealer or go to a pro-
fessional chain sharpener.
WARNING:
Avoid accidental start-
ing. Always unplug saw from power
source before installing a bar and/or
chain.
CHAIN REPLACEMENT
WARNING:
Wear
protective
gloves when handling chain. The chain
is sharp and can cut you even when it is
not moving.
