Operation Manual

30
English / USA
MS 270, MS 270 C, MS 280, MS 280 C
: When fitting the chain sprocket
cover, check that the teeth of the
tensioning gear and adjusting wheel
mesh properly. If necessary, turn the
adjusting wheel (12) slightly until the
sprocket cover can be pushed flush
against the engine housing.
: Pull out the hinged clip (13) so that
it snaps into position.
: Engage wingnut and tighten it down
moderately.
Go to chapter "Tensioning the Saw
Chain"
Retensioning during cutting work:
: Shut off the engine first –
and then loosen the nuts.
: Hold the bar nose up and use
screwdriver to turn tensioning screw
(1) clockwise until chain fits snugly
against the underside of the bar.
: While still holding the bar nose up,
tighten down the nuts firmly.
: 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.
: Check chain tension frequently –
see "During Operation".
Retensioning during cutting work:
: Shut off the engine.
: Pull out the hinged clip and loosen
the wingnut.
: Turn the adjusting wheel (1)
clockwise as far as stop.
: Tighten down the wingnut (2) firmly
by hand.
: Fold down the hinged clip.
: Follow instructions in "Checking
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 "Operating Instructions".
13
12
133BA036 KN
Tensioning the Saw Chain
(Side chain tensioner)
1
133BA024 KN
Tensioning the Saw Chain
(Quick chain tensioner)
1
2
001BA112 KN