14. Remove all slack from the chain using the chain
tensioning screw. Place a slotted screwdriver in the
slot and turn clockwise until the chain seats snugly
against the bar with the drive links in the bar groove.
UT10942D
UT10927D
UT10946D
MAINTENANCE
15. Lift the tip of the guide bar up to check for sag.
16. Release the tip of the guide bar and turn the chain
17. Hold the tip of the guide bar up and tighten the bar
CHAIN TENSIONING
The chain is correctly tensioned when there is no sag on
SCREW
the underside of the guide bar, the chain is snug, but it can
be turned by hand without binding. Ensure that the chain
brake is not set.
Note: If chain is too tight, it will not rotate. Loosen the bar
nuts slightly and turn the tension adjuster 1/4 turn counter-
clockwise. Lift the tip of the guide bar up and retighten the
bar mounting nuts securely. Ensure that the chain will
rotate without binding.
CHAIN TENSIONING
SCREW
Fig. 48
Page 24
tensioning screw 1/2 turn clockwise. Repeat this
process until sag does not exist.
mounting nuts securely.
Fig. 49
Fig. 50
Fig. 51