Tensioning The Saw Chain (Front Chain Tensioner); Tensioning The Saw Chain (Quick Chain Tensioner); Checking Chain Tension - Stihl MS 250 Instruction Manual

Tensioning the Saw Chain
(front chain tensioner)
1
Retensioning during cutting work:
Switch off the engine.
N
Loosen the nuts.
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 nuts 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".
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
Tensioning the Saw Chain
(quick chain tensioner)
1
2
Retensioning during cutting work:
Shut off the engine.
N
Pull out the hinged clip and loosen
N
the wingnut.
Turn the adjusting wheel (1)
N
clockwise as far as stop.
Tighten down the wingnut (2) firmly
N
by hand.
Fold down the hinged clip.
N
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

Shut off the engine.
N
Wear work gloves to protect your
N
hands.
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, retension the chain.
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".
English
23