Einhell FORTEXXA 18/30 X-CHANGE аккум. (4600010) - Инструкция по эксплуатации - Страница 27

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Before felling the tree you must take into account 

the natural inclination of the tree, the location of 

larger branches and the wind direction, as this will 

help you to correctly determine the direction in 

which the tree will fall.

Dirt, stones, loose bark, nails, staples and wire 

must be removed from the tree.

Making the felling notch (Fig. 17)

Cut a notch (A) at right angles to the fall direction 

to a depth of 1/3 of the tree diameter as shown 

in Fig. 17. First make the lower horizontal felling 

notch (1). This prevents the saw chain or the gui-

de rail from becoming trapped when the second 

felling notch is made.

Making the felling cut (Fig. 17)

The felling cut should be positioned at least 50 

mm above the horizontal felling notch. Make the 

felling cut (B) parallel to the horizontal felling 

notch. The felling cut should be cut to a depth 

which leaves a thin strip (felling hinge strip) (D) 

which can act as a hinge. This strip prevents the 

tree from rotating and falling in the wrong direc-

tion. Do not cut through the strip. When the felling 

cut gets close to the strip the tree should start to 

fall. If it becomes clear that the tree may well fall in 

a di

ff

 erent direction to the desired fall direction (C) 

or it starts to lean back and traps the saw chain, 

interrupt the felling cut and insert wedges made 

of wood, plastic or aluminum to open out the cut 

and control the lean of the tree until it leans in the 

required direction.

When the tree starts to fall, remove the chainsaw 

from the cut, switch it o

ff

 , place it on the ground 

and exit the danger zone via the planned escape 

route. Watch out for falling branches and take 

care not to trip.

Removing branches

Here we are talking about removing branches 

from the felled tree. When removing branches, 

leave any downward facing branches which are 

supporting the tree until the trunk of the tree has 

been cut up. Smaller branches should be re-

moved as shown in Fig. 18 (A= cutting direction 

when removing branches, B= keep away from the 

ground! Supporting branches should be left until 

the trunk is cut up) in a single cut from the bottom 

to the top. Any branches which are under tension 

should be cut from the bottom to the top to pre-

vent the saw from becoming trapped.

Cutting the tree trunk into lengths

Here we are looking at the process of cutting the 

felled tree into sections. Make sure you have a 

sure footing and distribute your body weight even-

ly onto both feet. If possible the trunk should be 

underlaid and supported with branches, beams 

or wedges. For easy cutting follow the simple ins-

tructions below.

If the full length of the tree trunk is evenly suppor-

ted as shown in Fig. 19 then proceed by cutting 

from the top down. Take care not to cut into the 

ground in the process.

If the weight of the tree trunk is resting on one end 

as shown in Fig. 20, 

fi

 rst cut through 1/3 of the 

trunk diameter from the underside (A) in order to 

prevent it from splintering. Make the second cut 

from the top (2/3 of the diameter) to the height of 

the 

fi

 rst cut (B) (this prevents the chainsaw from 

being trapped).

If the weight of the tree trunk is resting on both 

ends as shown in Fig. 21, 

fi

 rst cut through 1/3 of 

the trunk diameter from the top (A) in order to pre-

vent it from splintering. Make the second cut from 

underneath (2/3 of the diameter) to the height of 

the 

fi

 rst cut (B) (this prevents the chainsaw from 

being trapped).

When working with the saw on a slope, always 

position yourself at a higher point on the slope 

above the tree as shown in Fig. 15. In order to re-

tain full control at the moment when the cut goes 

through, reduce pressure towards the end of the 

cut without releasing your 

fi

 rm grip on the hand-

les of the chainsaw. Take care to ensure that the 

chainsaw does not touch the ground.

After completing the cut, wait for the chain saw to 

come to a standstill before removing the chain-

saw. Always switch o

ff

  the motor of the chainsaw 

before moving from tree to tree.

7.3 Kickback

The term “kickback” describes what happens 

when the running chainsaw suddenly kicks up-

ward and backward. Usually, this is caused by 

contact between the tip of the cutter rail and the 

workpiece or the saw chain becoming trapped.

In the event of kickback, large forces occur sud-

denly and violently. As a result, the chainsaw 

usually reacts uncontrollably. This can often result 

in very serious injuries to the worker or persons 

in the vicinity. The risk of kickback is particularly 

great when performing cross cuts, angled cuts 

and longitudinal cuts, as it is not possible to use 

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19.07.2021   13:57:26