Checking Chain Tension; Chain Lubricant; Filling Chain Oil Tank - Stihl MSE 250 C Instruction Manual

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
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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".
MSE 250 C

Chain Lubricant

For automatic and reliable lubrication of
the chain and guide bar – use only an
environmentally compatible quality
chain and bar lubricant. Rapidly
biodegradable STIHL BioPlus is
recommended.
NOTICE
Biological chain oil must be resistant to
aging (e.g. STIHL BioPlus), since it will
otherwise quickly turn to resin. This
results in hard deposits that are difficult
to remove, especially in the area of the
chain drive and chain. It may even cause
the oil pump to seize.
The service life of the chain and guide
bar depends on the quality of the
lubricant. It is therefore essential to use
only a specially formulated chain
lubricant.
WARNING
Do not use waste oil. Renewed contact
with waste oil can cause skin cancer.
Moreover, waste oil is environmentally
harmful.
NOTICE
Waste oil does not have the necessary
lubricating properties and is unsuitable
for chain lubrication.

Filling Chain Oil Tank

Preparations
1
Thoroughly clean the oil filler cap (1)
N
and the area around it to ensure that
no dirt falls into the tank.
Position the machine so that the
N
filler cap faces up.
Opening
Raise handle.
N
English
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