14
around the sprocket of the chainsaw. Fit the bar flush
against the mounting surface so that the bar stud is in
the long slot of the bar.
WARNING
When placing the bar on the bar studs, ensure the chain
tensioning pin is in the chain tension pin hole. Failure
to properly place the chain tensioning pin in the chain
tension pin hole could cause the chain to come loose,
resulting in serious personal injury.
■ Replace the chain cover, washer and chain cover
screw. Tighten the chain cover screw only by hand. The
bar must be free to move for tension adjustment.
■ Remove all the slack from the chain by turning the chain
tensioning screw clockwise until the chain seats snugly
against the bar with the drive links in the bar groove.
■ Lift the tip of the guide bar up to check for sag.
Release the tip of the guide bar and turn the chain
tensioning screw 1/2 turn clockwise. Repeat this
process until sag does not exist.
■ Hold the tip of the guide bar up and tighten the chain
cover screw securely.
■ Chain is correctly tensioned when there is no sag on the
underside of the guide bar, the chain is snug, but it can
be turned by hand without binding.
NOTE: If chain is too tight, it will not rotate. Loosen the
chain cover screw slightly and turn tension adjuster 1/4
turn counterclockwise. Lift the tip of the guide bar up and
retighten chain cover screw securely. Assure that the chain
will rotate without binding.
■ Tighten the chain cover screw securely by 3 N.m torque.
■ Place the hex key back into the storage area.
ADJUSTING THE CHAIN TENSION
See Fig.27-28.
WARNING
Never touch or adjust the chain while the motor is
running. The saw chain is very sharp. Always wear
protective gloves when performing maintenance on the
chain.
■ Stop the motor before setting the chain tension. Make
sure the chain cover screw is loosened to finger tight,
turn the chain tensioner clockwise to tension the chain.
Refer to Replacing Bar and Chain section in this
manual for additional information.
Fig 24
Fig 25
Fig 26
Fig 23
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