POWEG1011 EN
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Danger: Tree will move sideways.
11.4 Felling trees
To fell trees, observe all the safety regulations and proceed as follows:
Remember!
Danger zone: Falling trees can bring down other trees with them. The danger zone is therefore
twice the length of the tree being felled. (Fig, 12)
Felling trees is dangerous and requires practice. If you are a beginner or
inexperienced, do not try to teach yourself but seek professional training.
(Fig, 13)
Falling direction:
▪ 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.
When the chain saw is used to cut trees that exceed its power limits the chain can get stuck. If
the chain gets jammed, release it using a wooden wedge.
Do not fell trees:
▪ If you can no 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.
12 CLEANING AND MAINTENANCE
Always pull the plug out of the power socket before doing any work on the
chainsaw!
▪ Keep the cooling vents on the motor housing clean and unobstructed at all times.
▪ Only the maintenance work described in these operating instructions may be carried out.
Any other maintenance work must be carried out by our Customer Service.
▪ Do not modify the power saw in any way as this could jeopardize its safety.
▪ Should the chainsaw fail despite our careful manufacturing and inspection procedures,
have it repaired by an authorized Customer Service work-shop.
13 TROUBLESHOOTING
