GreenWorks CS40L410 Owner's Manual page 26

MAINTENANCE
• 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.
ADJUSTING THE CHAIN TENSION
• Loosen the chain cover lock nuts with the
supplied wrench. The chain cover lock nuts do
not have to be completely removed in order to
adjust the chain tension.
• Rotate the chain adjustment screw clockwise
to increase the chain tension and rotate
counterclockwise to decrease the chain
tension.
• Once the chain is at the desired tension,
tighten the chain cover lock nuts.
W A R N I N G
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.
NOTE: During normal saw operation, the
temperature of the chain increases. The drive
links of a correctly tensioned warm chain will hang
approximately 1/16 in. (1,58 mm) out of the bar
groove.
NOTE: New chains tend to stretch; check the chain
tension frequently and tension as required.
1/16 in. (1,58 mm)
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