Tensioning The Saw Chain (Side Chain Tensioner) - Stihl MS 171 Instruction Manual

11
10
N
Fit the chain over the sprocket (10).
N Push the guide bar over the bar
stud (11), the head of the rear bar
stud must engage the slot.
N Make sure the drive link tangs
engage the bar groove (see arrow)
and then rotate the tensioning gear
counterclockwise as far as stop.
MS 171, MS 181, MS 181 C, MS 211, MS 211 C
N Place the chain sprocket cover in
position and engage the guide lugs
in the recesses in the engine
housing.
13
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 (12) slightly until the sprocket
cover can be pushed flush against
the engine housing.
N Pull out the hinged clip (13) so that
it snaps into position.
N Engage wingnut and tighten it down
moderately.
N Go to chapter on "Tensioning the
Saw Chain"
Tensioning the Saw Chain
(side chain tensioner)
1
Retensioning during cutting work:
N Switch off the engine.
N Loosen the nut.
12
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 nut 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".
English
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