Operation Manual

Retensioning during cutting work:
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Disengage the chain brake.
•
Slacken off the nut.
•
Hold the bar nose up and use
screwdriver to turn the tensioning
screw  clockwise until chain fits
snugly against the underside of the
bar. While still holding bar nose up,
tighten the nut ILUPO\.
•
Now refer to chapter
"Checking Chain Tension"
Arrows  show direction of rotation
of chain.
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Wear work gloves.
•
Disengage the chain brake:
Pull hand guard  toward the front
handle.
The chain must fit snugly against 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.
1RWHA new chain has to be retensioned
more often than one that has been in
use for some time.
Check chain tension frequently -
see section "During Operation".
2
1
2
107BA005 KN
1
107BA006 KN
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For automatic and reliable lubrication of
the chain and guide bar:
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,PSRUWDQW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, clutch 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.
If special chain lubricant is not available,
you may - in an emergency - use an HD
single grade or multigrade engine oil
with a viscosity that suits the prevailing
outside temperature.
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Medical studies have shown that
renewed contact with waste oil can
cause skin cancer. Avoid direct contact
with waste oil. If waste oil does get on
your skin, wash with soap and water.
'RQRWXVH waste oil for any purpose,
and dispose of it only at authorized
disposal locations.
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24 E 220