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24
Fig. 27
CHAIN
TENSIONING
SCREW
7. Replace the chain cover, washer and chain cover
screw. Tighten the chain cover screw finger tight
only. The bar must be free to move for tension
adjustment.
8. 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.
9. 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.
10. Hold the tip of the guide bar up and tighten the bar
mounting screw securely.
11. 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.
12. Place the hex key back into the storage area.
Fig. 28
Fig. 29
HEX KEY
LIFT THE TIP OF
THE GUIDE BAR
UP TO CHECK
FOR SAG
MAINTENANCE