10
GB/IE/NI
Working procedures
Get to know the chainsaw before you start to use it.
Checking and adjusting the chain lubrication
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CAUTION!
• Never work without chain lubrication! If the saw chain runs
dry, the cutting equipment may become irreparably dam-
aged in a short time.
• Always check chain lubrication before starting work.
NOTE
Use only saw chain oil preferably biodegradable. Do not use
waste oil, motor oil, etc.
While working, check whether the chain lubrication is working
correctly.
With the chainsaw running at a medium speed, hold it over a
sawn off tree stump or a suitable ground sheet. If the lubrication
is adequate, a light film of oil will form on the tree stump or the
ground sheet (see fig. F).
• If required, the chain lubrication can be increased or de-
creased using the oil adjusting screw (19).
• To do this, use the supplied flat-head screwdriver (31):
-
Press and then turn the oil adjusting screw (19) clockwise
to decrease the chain lubrication.
-
Press and then turn the oil adjusting screw (19) anticlock-
wise to increase the chain lubrication.
Checking the chain brake
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WARNING!
You must check the chain brake before every use.
The chain brake stops the saw chain in the event of a kickback.
• Make sure that the front hand guard (1) is free of dirt and
moves freely.
• Start the chain saw and accelerate the saw chain to full
speed.
• With the saw chain running, press the front hand guard (1).
The chain brake must slow down and lock the saw chain at
maximum speed.
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WARNING!
High engine revs over a long period with the engine brake
engaged will damage the engine and the chain drive.
If the saw chain (17) moves anyway, contact Customer Service.
10 Basic working procedures when fell-
ing trees
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WARNING! / RISK OF INJURY!
Sawing and felling work as well as all associated tasks may
only be carried out by properly trained operators.
NOTE
Note your country’s laws regarding felling work and contact
the appropriate authority for more information.
• Make sure that no one can be injured by falling branches
and trees.
• Only the required personnel should be in the working area.
• Keep the area around the trunk free and tidy to ensure se-
cure footing for the operators.
• Keep all escape routes free and tidy to ensure that the work-
ing area can be evacuated quickly.
• Do not carry out any felling work in strong wind, poor weath-
er or bad visibility.
• Keep a distance of at least 2½ tree lengths from next work-
ing area.
Use and handling
• Never start the appliance before the guide rail (16), saw
chain (17) and sprocket cover (22) have been fitted cor-
rectly.
• Do not cut any wood that is lying on the ground and do not
attempt to saw roots that are protruding from the soil. Never
immerse the saw chain (17) in the soil, as this could blunt the
saw chain (17).
• If the appliance accidentally comes into contact with a solid
object, turn off the engine immediately and inspect the appli-
ance for damage.
• Service the appliance carefully. Check for misalignment or
binding of moving parts, breakage of parts and any other
damage that may impair the tool’s operation. If damaged,
have the appliance repaired before use. Many accidents are
caused by poorly maintained tools.
• Keep cutting tools sharp and clean. Properly maintained cut-
ting tools with sharp cutting edges are less likely to bind and
are easier to control.
• Have the appliance checked by qualified specialists. Use
only the replacement parts recommended by the manufac-
turer.
Preparing the kerf (fig. G)
NOTE
The kerf determines the direction that the tree will fall in.
Place the kerf at right angles to the fall direction.
Saw as close the ground as possible.
Support the chainsaw using the bumper spike (15).
• Start with the first kerf cut A. The depth of the kerf should
be about 1/4 of the diameter of the tree and at an angle
of 45°–60°.
• Make the felling cut B around 2–3 centimetres higher than
the horizontal kerf cut A. Ensure that the felling cut B is per-
fectly horizontal.
• Leave around 1/10 of the tree diameter, the hinge C, in front
of the felling cut B. The hinge C guides the tree to the ground
– like a door hinge – and prevents premature falling.
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WARNING!
Risk of accidents!
Do not saw the hinge C at the same time as the felling cut B,
otherwise the tree could fall in an unexpected direction!
Be prepared that the tree can slip uncontrollably when it falls
onto the cut.
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