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Maintenance and care
7.2
Delimbing (18)
Delimbing is the separation of branches from the
felled tree. Observe the following points:
■
Support the chain saw against the tree trunk
with the bumper spike during the work.
■
Leave larger, downward-pointing branches
supporting the tree standing at first.
■
Cut off smaller branches with one cut.
■
Saw off branches systematically and sequen-
tially from the tree (18/a). First, saw off any
branches that might hinder you. Then cut off
the branches that create tension. Finally saw
off the main branch at the base.
■
Saw off free-hanging branches from above
(18/b), but not from below.
■
Pay attention to branches under tension, and
saw through these from underneath upwards
(18/c) in order to avoid the chain saw becom-
ing trapped.
7.3
Cross-cutting (19 – 22)
Cutting to length means dividing the felled tree in-
to sections. Observe the following points:
■
Ensure that your feet are stable and that your
body weight is evenly distributed over both
feet. If possible, the trunk should be backed
and supported by branches, beams or wedg-
es.
■
When working on a slope, always stand uphill
of the tree trunk as it could roll away (19).
■
Guide the chain saw so that there is no part
of your body in the extended sweep arc of
the saw chain.
■
Position the bumper spike directly adjacent to
the cut edge and allow the chain saw to pivot
about this point. Do not exert any pressure at
the end of the cut.
■
In order to maintain full control of the chain-
saw at the moment of sawing, reduce the
contact pressure towards the end of the cut
without releasing the tight hold on the chain-
saw handles.
■
Make sure that the saw chain does not touch
the ground.
■
At the end of the cut, wait for the saw chain
to come to a halt before you pull out the
chain saw.
■
Always switch off the motor of the chain saw
before you go to the next tree.
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The entire length of the tree trunk is uniformly in
contact with the ground:
■
Saw through the tree trunk from above (20/a),
without cutting into the ground.
Tree trunk is lying raised at one end:
■
To prevent the chain saw becoming trapped
and the wood splintering, first saw through 1/3
of the trunk diameter from below (21/a), then
saw through the remainder from above, down
as far as the cut made from underneath (21/b).
Tree trunk is lying raised at both ends:
To prevent the chain saw becoming trapped and
the wood splintering, first saw through 1/3 of the
trunk diameter from above (22/a), then saw
through the remainder from underneath, up as far
as the cut made from above (22/b).
DANGER! Danger of fatal injury due to
kickback! The operator can be fatally injured by
kickback of the appliance.
■
It is essential to comply with the measures in
order to avoid any kickback.
7.4
Cutting converted timber
Heed the following points during this work:
■
Use a secure cutting surface (sawing trestle,
wedges, beams).
■
Make sure you are standing securely and
that your bodyweight is evenly distributed.
■
Secure logs to prevent them twisting.
■
Only start the cut once the saw chain is run-
ning. Never switch on the chain saw already
in the kerf.
■
Do not secure the wood with your foot and do
not get another person to hold it.
8 MAINTENANCE AND CARE
WARNING! Danger of cuts and lacera-
tions. Danger of cuts and lacerations when
reaching into sharp-edged, moving appliance
parts and into cutting tools.
■
Before maintenance, care and cleaning work,
always switch off the appliance. Remove the
rechargeable battery.
■
Always wear protective gloves during mainte-
nance, care and cleaning work.
The chain saw complies with all relevant safety
standards. Repairs are only allowed to be per-
formed by qualified specialists, and with the ex-
clusive use of genuine spare parts.
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