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11.
Replace the outer guide bar plate ensuring that the bar
pin groove is at the bottom with the upper and lower
edges angled away from the guide bar.
12.
Replace the clutch cover and bar mounting nuts.
13.
Tighten the bar mounting nuts finger tight only. The
bar must be free to move for tension adjustment.
14.
Remove all 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.
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
tensioning screw 1/2 turn clockwise. Repeat this
process until sag does not exist.
CHAIN TENSIONING
SCREW
Fig. 45
17.
Hold the tip of the guide bar up and tighten the bar
mounting nuts securely.
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. 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 nuts securely. Ensure that the chain will rotate without
binding.
Fig. 46
Fig. 47
Fig. 48
MAINTENANCE
