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Guide
Bar
Chain Adjustment
Bar Nuts Tool
Adjusting (Bar Tool)
Screw
2. Loosen bar nuts until they are
finger tight against the clutch cover.
3. Turn adjusting screw clockwise un-
til chain solidly contacts bottom of
guide bar rail.
4. Using bar tool, roll chain around
guide bar to ensure all links are in
bar groove.
5. Lift up tip of guide bar to check for
sag. Release tip of guide bar, then
turn adjusting screw until sag does
not exist.
6. While lifting tip of guide bar, tighten
bar nuts securely with the bar tool.
7. Use the screwdriver end of the bar
tool to move chain around guide
bar.
8. If chain does not rotate, it is too
tight. Slightly loosen bar nuts and
loosen chain by turning the adjust-
ing screw 1/4 turn counterclock-
wise. Retighten bar nuts.
9. If chain is too loose, it will sag be-
low the guide bar. DO NOT operate
the saw if the chain is loose.
_,WARNING: If the saw is oper-
ated with a loose chain, the chain
could jump offthe guide bar and result
in serious injury.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A
dull chain makes a sawdust powder
and cuts slowly. See CHAIN SHARP-
ENING.
CHECK GUIDE BAR
Conditions which require guide bar
maintenance:
• Saw cuts to one side or at an angle.
• Saw has to be forced through the cut.
• Inadequate supply of oil to bar/chain.
Check the condition of guide bar each
time chain is sharpened. A worn guide
bar will damage the chain and make
cutting difficult.
After each use, ensure ON/STOP
switch is in the STOP position, then
clean all sawdust from the guide bar
and sprocket hole.
To maintain guide bar:
• Move ON/STOP switch to STOP.
• Loosen and remove bar nuts and
clutch cover. Remove bar and chain
from saw.
• Clean the oil holes and bar groove
after each 5 hours of operation.
Remove Sawdust Prom ._ J_
Guide Bar _ov_
Oil Holes o -_
• Burring of guide bar rails is a normal
process of rail wear. Remove these
burrs with a flat file.
• When rail top is uneven, use a flat
file to restore square edges and
sides.
'_ File Rail Edges_ r] r]
and Sides I U I
Square ] ]
Worn Groove Correct Groove
Replace guide bar when the groove is
worn, the guide bar is bent or cracked,
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 de-
cal located on the chain saw.
CHECK FUEL MIXTURE LEVEL
• See FUELING ENGINE under the OP-
ERATION section.
15
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