STERWINS 3276000660170, Assemby - Use - Maintenance Manual

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7 . Do not force the saw chain while cutting, let the chain do the work using the gripping teeth to apply
minimal leverage pressure.
8 . Do not operate the product with arms fully extended or attempt to saw areas which are difficult to
reach, or on a ladder. Never use the product above shoulder height.
9 . Optimum sawing is achieved if the chain speed remains constant during cutting.
10 . Be careful when reaching the end of the cut. The weight of the product may change unexpectedly as
it cuts free from the wood. This can cause accidents to the legs and feet. Always remove the product from
a wood cut while the product is running.
11 . Check that the oil feed to the chain is operating correctly; run the chain saw at medium speed and
ensure that the chain has received a consistent coating of oil.
Preventing kickback
The term kickback refers to when the saw suddenly jumps up and back. This is usually caused by the work
piece coming into contact with the chain bar tip or the clamping of the saw chain.
A kickback generates an abrupt powerful force. The saw usually reacts in an uncontrolled manner,
creating the possibility of injury to the user.
The danger of a kickback is greatest when attempting to cut near or with the chain bar tip. Always apply
the saw as flatly as possible in order avoid a loss of control during operation.
Kickback brake
The kickback brake is a safety mechanism activated by the front hand guard. When kickback occurs, the
saw chain stops immediately.
The following function check should be carried out before each use. The purpose of the chain brake
testing is to reduce the possibility of injury due to kickback:
1. Push front hand guard forward and try to start the chain saw. The chain must not start.
2. To deactivate the kickback brake, release ON/OFF trigger switch and pull hand guard backwards.
Felling a tree
WARNING! Before commencing work or attempting to fell any tree, check with your local council to
ensure you have permission!
Even in your own garden you may be in a conservation area, the tree you wish to fell may have a
conservation order against it or the tree may be visible on the plans of your house – In all these instances
and more, you may be required to obtain permission before work can begin!
1 . 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.
2 . The product operator should keep on the uphill side of the terrain as the tree is likely to roll or slide
downhill after it is felled.
3 . 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.
4 . 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.
5 . Remove dirt, stones, loose bark, nails, staples and wire from the tree.
Notching undercut
Make the notch 1/3 the diameter of the tree, perpendicular to the direction of falls. Make the lower
horizontal notching cut first. This will help to avoid pinching either the saw chain or the guide bar when
the second notch is being made.