Owner's Manual

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Place sprocket cover in position -
engage guide lugs in recesses in
engine housing and check that the
teeth of the adjusting wheel and
tensioning gear mesh.
If necessary, turn the adjusting
wheel (13) slightly until the sprocket
cover can be pushed flush against
the engine housing.
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Pull out the hinged handle (14) of
the wingnut so that it snaps into
position.
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Engage wingnut and tighten it down
moderately.
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Now refer to chapter
“Tensioning the Saw Chain”
Retensioning during cutting work:
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Turn off the engine
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Slacken the nuts.
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Hold the bar nose up -
use screwdriver to turn the
tensioning screw (1) clockwise
until chain fits snugly against
the underside of the bar.
Tighten down the nuts firmly.
A new chain has to be retensioned
more often than one that has been in
use for some time -
Check chain tension frequently -
see section “During Operation”.
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Now refer to chapter
“Checking Chain Tension”
Retensioning during cutting work:
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Turn off the engine
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Pull out the handle of the wingnut
Slacken off the wingnut.
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Turn adjusting wheel (1) clockwise
up to the stop.
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Tighten firmly down the wingnut (2)
by hand.
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Fold down the handle of the
wingnut.
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Check chain tension.
A new chain has to be retensioned
more often than one that has been in
use for some time -
Check chain tension frequently -
see section “During Operation”.
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••
•
Now refer to chapter
“Checking Chain Tension”
14
13
135BA013 KN
1
143BA045 KN
Tensioning the Saw Chain
Models with Front Chain Tensioner
1
2
143BA038 KN
Tensioning the Saw Chain
Models with Quick Chain Tensioner
135BA012 KN
28 017, 018