Gardebruk 106537 Manual De Instrucciones página 37

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● First estimate the direction of fall, taking into account the centre of gravity of the
crown and the wind direction. The chain saw must be running before it comes into
contact with the wood. Switch on the chain saw. Saw an undercut in the tree in the
direction of fall and then make a horizontal cut (back cut) on the side opposite to the
undercut.
● Make the undercut: This will give the tree a direction and guidance.
● Check the direction of fall: If you have to correct the undercut, always re-cut over the
entire width.
● Call now "Timber! "
● Only now make the back cut, which must be higher than the sole of the undercut.
Insert wedges in time.
● Leave the bridge in place as it will function as a hinge. If you cut through the bridge,
the tree will fall randomly.
● Fell the tree by driving a wedge into the back cut, not by sawing through it . When
the tree falls, step back and watch the crown. Wait for the crown to stop swinging. Do
not continue working under branches which have got stuck.
Do not fell trees:
● If you can longer distinguish details within the danger zone, e.g. owing to fog, rain,
snow drifts or twilight.
● If the direction of fall cannot be reliably estimated owing to wind or gusts of wind.
Felling work on sloping ground, black ice, frozen or dewy ground is safe only if you can
get a firm foothold. To switch off: Pull the plug out of the power socket. To fell the tree,
you must drive a wedge into the back cut. When retreating after making the back cut,
watch out for falling branches.
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