MS 271, MS 271 C, MS 291, MS 291 C
English
27
Disengaging the chain brake.
N Pull the hand guarad towards the
front handle until there is an audible
click – the chain brake is
disengaged.
Fitting the chain
WARNING
Wear work gloves to protect your hands
from the sharp cutters.
N Fit the chain – start at the bar nose.
N Fit the guide bar over the studs (1) –
the cutting edges on the top of the
bar must point to the right.
N Engage the peg of the tensioner
slide in the locating hole (2) –- place
the chain over sprocket (3) at the
same time.
N Turn the tensioning
screw (4)clockwise until there is
very little chain sag on the
underside of the bar – and the drive
link tangs are engaged in the bar
groove.
N Refit the sprocket cover and screw
on the nuts only fingertight.
N Go to chapter on "Tensioning the
Saw Chain"
Retensioning during cutting work:
N Shut off the engine.
N Loosen the nuts.
N Hold the bar nose up.
N Use a screwdriver to turn the
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
N While still holding the bar nose up,
tighten down the nuts firmly.
N Go to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
some time.
N Check chain tension frequently –
see chapter on "Operating
Instructions".
Tensioning the Chain
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