The chain life of the saw chain mainly depends upon sufficient lubrication
and correct tensioning.
Avoid tensioning the chain if it is hot, as this will cause the chain to become
over tensioned when it cools down.
WARNING! Tensioning the chain too tightly will overload the motor and
cause damage, insufficient tension can provoke chain derailing, whereas
a chain tightened correctly provides the best cutting characteristics and
prolonged work life.
Check the tension regularly because the chain length tends to stretch with use
(especially when the chain is new; after the first assembly, the chain tension must be
checked after 5 minutes
of
machine operation); in any case do not tighten the chain
immediately after use, but wait until it cools down.
In cases where the loosened chain needs to be adjusted, always unscrew the adjustable
outside ring before adjusting the chain tensioning screw/knob; adjust the tension and
tighten the bar retaining
the
nut/knob accordingly.
1). Place the chain saw on any suitable flat surface. Screw adjustable outside ring
clockwise until the SDS system is screwed tightly. The
correct chain tension will be reached automatically. The
ratchet mechanism prevents the chain tension from
loosening. (See Fig. 13)
2). The correct chain tension is reached when the saw chain (24) can be raised approx.
2-3 mm from the guide bar in the centre. This should be
done by using one hand to raise the saw chain against
the weight of the machine. (See Fig.14)
3). When the saw chain loos
ens
, unscrew the adjustable outside ring absolutely and then
screw on the side cover with the locking knob tightly again.
14
13
