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5.2- Working with the chainsaw
WARNING
Sawing and felling a tree, as well as all related works (mortise cutting, limbing, etc.), should only be
carried out by persons with the required training.
A person lacking experience in using the chainsaw or without working techniques should not
perform any of these jobs – accident hazard!
For felling and limbing, the gasoline chainsaws are better suited than electric chainsaws.
Indeed, the freedom of movement essential for such types of work is limited by the power supply
cord.
The electric chainsaw is not suitable for use in windfalls (tree falls) and is not permitted to be used for
such works.
If a tree is to be felled and limbed with an electric chainsaw, it is essential to comply with the specific
national regulations concerning the cutting techniques.
5.2.1- Felling a tree
Felling demands great experience. Both, felling and limbing should be carried out by trained
persons only.
1) General Guidelines for Felling Trees
- When bucking and felling operations are being performed by two or more persons at the same time,
the felling operations should be separated from the bucking operation by a distance of at least twice
the height of the tree being felled.
- Trees should not be felled in a manner that would endanger any person, strike any utility line or
cause any property damage.
If the tree does make contact with any utility line, the company should be notified immediately.
- The chainsaw operator should keep on the uphill side of the terrain as the tree is likely to roll or slide
downhill after it is felled.
- An escape path should be planned and cleared as necessary before cuts are started.
The escape path should extend back and diagonally to the rear of the expected line of fall as
illustrated in Fig.12.
- Before felling is started, consider the natural lean of the tree, the location of larger branches and the
wind direction to judge which way the tree will fall.
- Remove dirt, stones, loose bark, nails, staples and wire from the tree.
- In the area of felling trees, there must not be any other persons or animals.
- The safety distance from the tree being felled is minimally 2 ½ the length of the tree.
ATTENTION! National or local regulations may restrict the use of the
machine to certain hours or periods. Check with your local authority.
Note: careful daily inspection should be performed before use and after a drop
or shock to identify major defects. Do not use the machine until the defects
have been repaired.
Restrict working hours to a minimum and always take rest periods.
For proper use, after each work period take a rest period (for ex take a rest for
10 minutes after a work period of 30 minutes).
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