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Ensure the chain brake operates correctly and the chain is sharp. It is very important for keeping potential recoil at a safe level.
In case the brake does not operate efficiently, adjust it or repair in authorized service site.
In case the engine operates at high speed with the chain brake switched on, the saw clutch will overheat. When the chain brake engages during operation
of the engine, release the switch off immediately and stop the chain saw.
4.9. Chain tension adjustment.
Cutting chain tends to lengthen during operation due to higher temperature. Longer chain loosens and may slip off the guide bar.
Loosen the guide bar fixing lever (11).
Ensure the chain (8) remains in the guiding groove of the guide bar (9).
Use a screwdriver to turn the chain tension adjustment screw (8) clockwise, until the chain is strained appropriately (it should slightly hold the guide bar
in horizontal position).
Check the chain tension again (it should be possible to lift the chain by approximately 3 - 4 mm in the middle of the guide bar).
Tighten firmly the guide bar fixing lever (11).
Do not over-tension the chain. Adjustment of overly heated chain may lead to excessive tension when cooling down.
4.10. Operating the chain saw.
Before starting any planned task, familiarize yourself with section describing safe rules for chain saw operation. It is recommended to gain experience by
cutting waste wood pieces. It will also allow to find out the chain saw possibilities.
Always observe safety regulations.
Use the chain saw only for cutting wood. Cutting other materials is forbidden.
Intensity of vibrations and recoil change depending on the type of wood being cut.
Do not use the chain saw as a lever to lift, move or split objects. When the chain is pinched in wood, switch off the engine and drive wooden or plastic
wedge into the processed piece to release the chain saw. Start the tool again and commence cutting carefully.
Do not fix the saw to a stationary work station.
Attaching other devices, which are not allowed by the chain saw manufacturer, to the chain saw drive is forbidden.
It is not necessary to apply big force to the chain saw when using the tool. Apply light pressure only while the chain saw operates.
When the chain saw is pinched in kerf during cutting, do not remove it forcefully. It may cause loss of control over the chain saw, operator injury and/or
damage to the chain saw.
Release the chain brake before starting to work.
Wait until engine reaches its full speed before starting to cut).
Keep maximum speed for the whole time.
Allow the chain to cut wood. Press down the saw lightly.
Stop pressing the saw at the end of the cut to avoid losing control over the tool.
4.11. Protection against recoil.
Recoil is movement of the guide bar of the chain saw up and/or back, which happens when the part of the chain on the guide bar tip encounters an
obstacle.
Ensure the processed material is firmly fixed.
Use clamps to fix the material.
Hold the chain saw with both hands when starting up and during operation.
During recoil the chain saw cannot be controlled and the chain is loosened.
Incorrectly sharpened chain increases risk of recoil.
Do not cut above level of your shoulders.
Avoid cutting with guide bar tip, it may cause sudden recoil - to the back and up. Always use complete safety equipment and appropriate working clothes
when operating the chain saw.
Disassembly of protections, inappropriate operation, maintenance, improper guide bar or chain replacement may contribute to increase of risk of body
injury in case of recoil. Never modify the saw in any way. By using modified chain saw, the user looses all warranty rights. Warranty voids also when the chain
saw is used in accordingly to information contained in this manual.
4.12. Securing extension cord.
With the chain saw use only extension cords designed for outdoor applications. Cross section of the extension cord cores shall be at least 1.5 mm
ensure safe operation of the chain saw, put the extension cord in the power cord hook (2) in the rear handle (3), which eliminates unwanted tension of the
extension cord when working. Use of extension cords longer than 30m causes reduction of chain saw power.
4.13. Cutting pieces of wood.
When cutting wood follow guidelines for safety of work and do as follows:
Ensure the wood piece cannot be moved.
Use clamps to fix short pieces of material before cutting.
Cut wood or wood-like materials only.
Before cutting ensure the chain saw will not come into contact with stones or nails, as it could cause pulling the saw out and damage to the chain.
Avoid situations when working saw might touch wired fence or ground.
When cutting branches support the saw as much as possible and do not cut with the tip of the guide bar.
Watch out for obstacles such as protruding stumps, roots, hollows and holes in the ground, as they may be cause of an accident.
4.14. Felling a tree.
Felling trees require great experience. Do not perform activities for which you are not qualified!
Define the tree fall line. Consider wind, lean of the tree, location of heavy branches, complexity of work after tree fall and other factors.
When tidying area around the tree remember to ensure proper ground grip and escape path to use when the tree falls.
Predict and tidy up two escape paths at 45° angle, counting from the line opposite to expected line of the tree fall. There must be no obstacles on these
paths.
direction. Make an initial upper notch at an angle, one third of the trunk diameter deep. Make a horizontal notch lower, to join the top. Perform overthrown notch
horizontally from the opposite side of the guide and a little higher than lower surface of the notch.
Insert wedges on time to avoid pinching of the saw chain.
Fell the tree by driving a wedge rather than cutting through the whole trunk.
А. Direction of tree felling.
B. Hazard zones.
С. Withdrawal division.
The cutting is done by making three notches. Steering is done first notch, including upper and lower
notch, and then ends with the felling notch. By proper placement of the three notches can be controlled
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