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CHECK CHAIN TENSION
WARNING:
Wear protective
gloves when handling chain. The chain
is sharp and can cut you even when it is
not moving.
Chain tension is very important. C hain
stretches during use. This is especially
true during the first few times you use your
saw. Alw ays check chain tension each
time you use your saw .
D
Unplug unit from the pow er source.
D
Use a screwdriver to move chain
around guide bar to ensure k inks do not
exist. The chain should rotate freely.
D
Loosen bar clamp nuts until they are
finger tight against the bar clamp.
D
T urn the adjusting screw clockwise until
the chain solidly contacts bottom of
guide bar rail. Then, turn adjusting
screw an additional 1/4 turn.
Adjusting Screw -- 1/4 Turn
NOTE: To tighten the chain, turn the ad-
justing screw clockwise; to loosen the
chain, turn the adjusting screw counter-
clockwise.
Adjusting Screw
D
Check the tension by lifting the chain
from the guide bar . Rem ove som e of the
stiffness in the chain by pulling down
and letting go of the chain several times.
D
Continue turning the adjusting screw
until the tension is correct.
D
T ighten bar mounting nuts with a
wrench.
D
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. Adull
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 s harpened. A worn guide
bar will damage the chain and make cut-
ting difficult.
After each use, w ith 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
power source.
S
Loosen and remove bar m ounting nuts.
Remove bar and chain from saw .
S
Clean the oil holes and bar groove af-
ter each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Sprocket Hole
Oil Holes
S
Add lubricant to sprocket hole after
each use.
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 GrooveWorn Groove
File Rail Edges
and Sides
Square
Replace the guide bar w hen 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, u se
only the guide bar specified for your sawin
the repair parts list or on the decal located
on the chain saw.
LUBRICATION
Bar
Sprocket
Bar Oil
Fill Cap