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29
MAINTENANCE
Note: Make certain of direction of the chain.
• Position the chain so there is a loop at the back of
the bar.
• Hold the chain in position on the bar and place the
loop around the sprocket.
•
the bar studs are in the long slot of the bar. Ensure
that the chain is over the sprocket.
Note: When placing the bar on the bar studs, ensure
that the adjusting pin is in the chain tension pin hole.
• Replace the chain cover.
• Remove all slack from the chain by turning the chain
adjustment screw clockwise until the chain seats
snugly against the bar with the drive links in the bar
groove.
Fig.29
Fig.30
Fig.31
Bar Groove
Chain Drive Links
• Lift the tip of the guide bar up to check for sag.
• Release the tip of the guide bar and turn the chain
adjustment 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 lock nuts by turning them with the wrench.
The 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 the chain is too tight, it will not rotate. Loosen the
chain cover lock nuts slightly and turn the chain
adjustment screw 1/4 turn counterclockwise. Lift the tip of
the guide bar up and retighten the chain cover lock nuts.
Ensure that the chain will rotate without binding.
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