4
5
When fitting the chain sprocket cover,
check that the teeth of the tensioning
gear and adjusting wheel mesh properly.
N
If necessary, turn the adjusting
wheel (4) slightly until the sprocket
cover can be pushed flush against
the engine housing.
N
Pull out the hinged clip (5) so that it
snaps into position.
N
Engage wingnut and tighten it down
moderately.
N
Go to chapter on "Tensioning the
Saw Chain"
MS 271, MS 291, MS 291 C
Tensioning the Saw Chain
(side chain tensioner)
1
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 Saw Chain
(quick chain tensioner)
1
2
Retensioning during cutting work:
N
Shut off the engine.
N
Pull out the hinged clip and loosen
the wingnut.
N
Turn the adjusting wheel (1)
clockwise as far as stop.
N
Tighten down the wingnut (2) firmly
by hand.
N
Fold down the hinged clip.
N
Go to "Tensioning the Saw Chain"
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".
English
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