WORKING TECHNIQUES
5In order to keep control of your saw, always maintain a firm foothold. Never work on a ladder, in a tree or on any other insecure support.
6Always use a fast cutting speed, i.e. full throttle.
7Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting with a pushing chain. The chain tries to push the chain saw back towards the user. If the saw chain is jamming, the saw may be pushed back at you.
8Unless the user resists this pushing force there is a risk that the chain saw will move so far backwards that only the kickback zone of the bar is in contact with the tree, which can lead to a kickback.
Cutting with the bottom edge of the bar, i.e. from the top of the object downwards, is known as cutting with a pulling chain. In this case the chain saw pulls itself towards the tree and the front edge of the chain saw body rests naturally on the trunk when cutting. Cutting with a pulling chain gives the operator better control over the chain saw and the position of the kickback zone.
9Follow the instructions on sharpening and maintaining your bar and chain. When you replace the bar and chain use only combinations that are recommended by us. See instructions under the headings Cutting equipment and Technical data.
Basic cutting technique
WARNING! Never use a chain saw by
! holding it with one hand. A chain saw is not safely controlled with one hand. Always have a secure, firm grip around the handles with both hands.
General
•Always use full throttle when cutting!
•Reduce the speed to idle after every cut (running the engine for too long at full throttle without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage).
•Cutting from above = Cutting with a pulling chain.
•Cutting from below = Cutting with pushing chain.
Cutting with a pushing chain increases the risk of kickback. See instructions under the heading How to avoid kickback.
Terms
Cutting = General term for cutting through wood. Limbing = Cutting branches off a felled tree. Splitting = When the object you are cutting breaks off before the cut is complete.
There are five important factors you should consider before making a cut:
1Make sure the cutting equipment will not jam in the cut.
2Make sure the object you are cutting will not split.
3Make sure the chain will not strike the ground or any other object during or after cutting.
4Is there a risk of kickback?
5Do the conditions and surrounding terrain affect how safely you can stand and move about?
24 – English
