AL-KO BKS 35, Instructions For Use Manual

Page: 24 / 210

24
Translation of original user instructions
Work habits and work technique
Caution!
Felling trees and trimming requires a lot of experience.
Only trained persons may carry out this work.
Kickback danger
Warning!
Kickback danger!
A kickback can lead to fatal injuries!
Observe the following to avoid kickback:
Inspect item to be cut for foreign objects.
„
Operate the chainsaw with both hands.
„
Only take the chainsaw out of the cut with a running
„
saw chain.
Do not work bent over too far.
„
Never cut through several branches at the same
„
time.
Only work with a correctly sharpened and tensioned
„
chainsaw.
Never operate the device with stretched-out arms.
„
Begin the cut with a running chainsaw - only saw
„
at full throttle.
Do not saw with the guide bar points.
„
Exercise caution while continuing a started cut.
„
Felling trees
Caution!
Only begin with the felling work if an obstacle-free
retreat path away from the falling tree is possible.
The retreat path should run approximately 45°
„
diagonally backwards (N).
The safety distance for the falling tree should be at
„
least. 2½ tree lengths.
For the tree's direction of fall, decide upon:
„
The natural leaning of the tree
„
Height of the tree
„
one-sided branch formation
„
level or hillside
„
asymmetric growth, wood damage
„
wind direction and wind velocity
„
snow weight
„
Caution!
Do not carry out felling work when it is windy.
Trimming
Support the chainsaw at the trunk when trimming.
„
Pay particular attention to branches under tension.
„
Do not cut unsupported branches from below.
„
Do not stand on the felled trunk during trimming
„
work.
Burrowing and parallel-to-grain cuts may only be
„
carried out by persons with special training.
Felling Technique
Felling is done with 2 kerf cuts and the felling cut. The
kerf cuts (M/c) determine the felling direction of the
tree.
When felling and cross-cutting always set the claw
stop against the timber you want to saw.
Make the kerf cut (M/c) in the desired felling direction
(M/e) as near as possible to the ground.
Initially, saw the kerf cut (M/c) diagonally from 1.
above, then horizontally.
Saw the felling cut opposite from the kerf cut,
2.
abosolutely horizontally. The height of the felling
cut must be approx. 3 - 5 cm highter than the
horizontal kerf cut.
Caution!
Allow a bend (M/f) to stand between the kerf cut and
the felling cut that amounts to approx. 1/10 of the
trunk diameter.
The tree begins to fall during sawing:
Pull the chainsaw out of the cut immediately
„
Go into the retreat path area
„
Look for falling branches and twigs
„
If the tree remains standing, bring it to a controlled fall
by driving wedges into the felling cut.