Tensioning The Saw Chain (Side Chain Tensioner); Checking Chain Tension - Stihl MSE 250 C Instruction Manual

1
4
2
3
Turn the guide bar so that the chain
N
is positioned as shown in the
pictogram (1) – the arrows show the
chain's direction of rotation.
Fit the guide bar over the studs (2)
N
and engage the tensioner slide in
the hole (3) – place the chain over
the sprocket (4) at the same time.
5
Turn the tensioning screw (5)
N
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.
Refit the sprocket cover and tighten
N
the nut only moderately by hand –
finally tighten the nut only after
tensioning the saw chain.
Go to chapter on "Tensioning the
N
Saw Chain".
MSE 250 C
Tensioning the Saw Chain
(side chain tensioner)
2
1
Re-tensioning during cutting work:
Disconnect the plug from the wall
N
outlet.
Loosen the nut.
N
Hold the bar nose up.
N
Use a screwdriver to turn the
N
tensioning screw (1) clockwise until
the chain fits snugly against the
underside of the bar.
While still holding the bar nose up,
N
tighten down the nut firmly.
Go to "Checking Chain Tension".
N
A new chain has to be retensioned more
often than one that has been in use for
some time.
Check chain tension frequently –
N
see chapter on "Operating
Instructions".

Checking Chain Tension

1
Disconnect the plug from the wall
N
outlet.
Wear work gloves to protect your
N
hands.
Disengage the chain brake: Pull the
N
hand guard (1) against the front
handle and hold it there – the chain
brake and coasting brake are
disengaged in this position.
The chain must fit snugly against
N
the underside of the bar and it must
still be possible to pull the chain
along the bar by hand.
If necessary, re-tension the chain.
N
A new chain has to be re-tensioned
more often than one that has been in
use for some time.
Check chain tension frequently –
N
see chapter on "Operating
Instructions".
English
19