5
In order to keep control of your saw, always maintain
a firm foothold. Never work on a ladder, in a tree or on
any other insecure support.
6
Always use a fast cutting speed, i.e. full throttle.
7
Take great care when you cut with the top edge of the
bar, i.e. when cutting from the underside of the object.
This is known as cutting with a pushing chain. The
chain tries to push the chainsaw back towards the
user. If the saw chain is jamming, the saw may be
pushed back at you.
8
Unless the user resists this pushing force there is a
risk that the chainsaw will move so far backwards that
only the kickback zone of the bar is in contact with the
tree, which can lead to a kickback.
Cutting with the bottom edge of the bar, i.e. from the
top of the object downwards, is known as cutting on
the pull stroke. In this case the chainsaw pulls itself
towards the tree and the front edge of the chainsaw
body rests naturally on the trunk when cutting. Cutting
on the pull stroke gives the operator better control
over the chainsaw and the position of the kickback
zone.
WORKING TECHNIQUES
9
Follow the instructions on sharpening and maintaining
your bar and chain. When you replace the bar and
chain use only combinations that are recommended
by us. See instructions under the headings Cutting
equipment and Technical data.
Basic cutting technique
WARNING! Never use a chainsaw by
!
holding it with one hand. A chainsaw is
not safely controlled with one hand.
Always have a secure, firm grip around
the handles with both hands.
General
•
Always use full throttle when cutting!
•
Reduce the speed to idle after every cut (running the
engine for too long at full throttle without any load, i.e.
without any resistance from the chain during cutting,
can lead to serious engine damage).
•
Cutting from above = Cutting with a pulling chain.
•
Cutting from below = Cutting with pushing chain.
Cutting with a pushing chain increases the risk of
kickback. See instructions under the heading How to
avoid kickback.
Terms
Cutting = General term for cutting through wood.
Limbing = Cutting branches off a felled tree.
Splitting = When the object you are cutting breaks off
before the cut is complete.
There are five important factors you should consider
before making a cut:
1
Make sure the cutting equipment will not jam in the
cut.
2
Make sure the object you are cutting will not split.
–
English
25