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Never get in contact with the running saw with metallic
fences or the ground.
Make sure that the wood is free of foreign object (stones,
nails etc).
Saw techniques
Avoid saw backstroke by a correct guiding of the saw.
Note: „Causes and operator prevention of kickback"
Make sure that the wood cannot turn when sawing.
Saw splintered wood with care. There is risk of injury by
wood pieces carried away.
Use the claw stopper (15) for fixing the chain saw on the
wood. Use the claw stopper when sawing as lever.
Do not use the chain saw for lifting or moving of wood.
Let the chain saw work by producing a light leverage
pressure over the claw stopper. When sawing do not press
with strength.
When sawing thicker perches or trunks set back the claw
stopper (15) on a deeper point. For setting back release the
claw stopper from the wood and place it again in a deeper
position. Do not remove the saw here out of the cut.
Be careful at the end of a sawing cut. As far as the saw
leaves the wood the force of weight changes.
There is risk of accident for legs and feet.
Remove the chain saw only with running saw chain out of
the cut.
If the saw chain gets jammed in the wood, stop it
immediately. Use a wedge to free the guide bar.
Never put the trunk for sawing on the ground. Support the
trunk in such manner that the cut does not close and the
saw chain jams. Use a safe base (e.g. sawhorse). Avoid
contact to ground with the guide bar tip or saw chain.
Adapt shorter trunks before sawing and clamp them firmly.
Avoid cutting of thin bosk and lumber. The chain saw is not
suitable for those works.
Carry out longitudinal cuts with special care as the claw
stopper is not used. Avoid saw backstroke by guiding the
saw with a small angle.
When removing branches from chopped down trees,
leave the larger branches that support the trunk in place. Cut
off the smaller branches as shown.
Branches under tension should be cut from the
bottom to the top to prevent the saw from getting
jammed.
When sawing on a slope, the operator should stay in
the area above or to the side of the tree to be felled or the
lying pieces to be cut, as the log is likely to roll or slide
downhill after felling.
To maintain full control at the moment of "sawing through",
reduce the contact pressure towards the end of the cut
without releasing the firm grip on the handles of the
chainsaw. Make sure that the saw chain does not touch the
ground. After completing the cut, wait for the saw chain to
stop before removing the chainsaw from there. Always turn
off the chainsaw engine before moving from tree to tree.
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Additional
advices
tension/release
If perches, trees or wood under tension become free of tension
by sawing extreme caution is demanded. The sawing material
can react completely uncontrolled and result in heavy injuries or
death.
Such works shall only be carried out by instructed
specialists.
For all works set always first of all on the pressure
side
the releasing cut and then the dividing cut
otherwise the chain saw can jam or strike back.
Upper side of wood under tensile stress
Place one cut (one third of the diameter of the trunk) from
the bottom up.
Then place a second cut on the same point from top which
cuts through the trunk.
Underside of wood under tensile stress
Place one cut (one third of the diameter of the trunk) from
top to bottom.
Then place a second cut on the same point from bottom
which cuts through the trunk.
Strong trunks and strong tension
Place one cut (one third of the diameter of the trunk) from
buttom up.
Then place a second cut with distance to the first cut from
top which cuts through the trunk.
Cutting off of perches
For horizontal branches without being top heavy
The branch section falls down in a controlled manner without
tipping over.
Set the first cut from below, approx. one third of the
branch diameter.
The second cut is made on the same level as the first cut
or moved further toward the inside (negative breaking
step).
Remove the remaining branch section.
Additional advices for chopping down trees
Such works shall only be carried out by instructed
specialists.
Pay attention to the length of the guide bar. Only those trees
are allowed to be cut which have a trunk diameter which is
smaller than the length of the guide bar.
Safeguard the dangerous zone (D) before cutting.
Make sure that there are no persons or animals in
the fall area. Danger to life!
Make sure that the working area around the trunk is
free of risk to stumble and that you have an escape route (F)
which is free of obstacles.
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sawing
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