Scheppach MFH5300-4BP Traduction Du Manuel D'origine page 36

CAUTION: Be especially careful, when using this
working technique, because the further away the cutting
tool is from the ground, the higher is the risk that objects
to be cut and particles will be hurled sideways.
CAUTION: Incorrect use and misuse can damage the
bush cutter and cause severe injuries because of pieces
hurled away.
To minimize the risk of accidents by use of the cutting
blade, take note of following points:
• Never cut shrubbery or wood whose diameter is larger
than 2 cm.
• Avoid contact with metal bodies, stones, etc.
• Periodically check the cutting blade for damages.
Never continue to use a damaged cutting blade.
• When the cutting blade becomes apparently blunt, it
must be sharpened according to instructions. When
the cutting blade is apparently out of balance, it must
be replaced.
Working with pole saw
Oiling of the chain and bar
It is recommended to use commercial chain oil.
Remove the oil tank cap. (Fig.54 / L)
Fill the chain oil tank (Fig.54 / M )) to 80% with chain oil.
Close Oil tank cap (Fig.54 / L)
Oil Supply Control
To check the chain lubrication keep the chain on a
piece of paper and give full throttle for a few seconds.
On the paper the quantity of oil can be checked.
Make sure that there is always enough oil in the tank
because chain lubrication is always on.
Automatic chain lubrication - Settings possible!
Precautions for Saw procedure
Never stand under the branch you want to saw. Use
special caution when working with branches under
tension and splintering wood. Possible risk of injury
caused by falling branches and catapulting pieces of
wood. In general, it is recommended to set the pruning
saw at an angle of 60 ° to the road.
Keep both hands well with the device during the cutting
process and pay you up to an equilibrium position and a
good level.
• Never try to use your tool with one hand. The loss
of control of your tool can cause serious injury or
death. Never work on a ladder, a tree branch or other
unstable surfaces.
• Never cut with the upper edge or the tip of the cutter
bar.
• Make sure that the chain tension is always correctly
adjusted.
• Practice for guiding the device slight pressure, but you
do not overload the motor.
Clear the work area before cutting interfering branches
and undergrowth. Then you create a retreat area,
far from the spot where the cut branches fall on, and
36 GB
remove any obstacles there. Keep the work area clean,
remove the cut branches immediately. Pay attention to
your point, wind direction and the possible direction of
fall of the branches. Be prepared that fallen branches
can strike back. Place all other tools and equipment at a
safe distance from the branches to be cut, but not in the
retreat area.
Always observe the condition of the tree.
Look for rot and decay in the roots and branches. If
they are rotten inside, they can break off and fall down
unexpectedly during cutting.
You could also attend by fractured and dead branches
out, which is solved by the shake and fall on you.
For very thick or heavy branches you first make a small
incision below the branch before you work from the top
down to avoid chipping.
Basic cutting technique
Heavy branches break off easily when sawing. They tear
long strips of bark away from the trunk, which damages
the tree sustainably. The following section technique can
significantly reduce this risk:
• Saw the first branch about 10 cm from the trunk.
• Put in about 15 cm from the base of the top of a further
section.
• Saw until the branch breaks. The risk of injury on the
trunk is no.
• Finally, remove with a clean cut from the top of the
trunk along the remaining.
• Thus, the damage to the tree are kept as low as
possible, we recommend the interface additionally to
seal with grafting wax.
Hazards by reactive forces
Reactive forces occur during operation of the saw chain.
The forces which are applied to the wood are against
the operator. They occur when the moving chain comes
into contact with a fixed object such as a branch or is
pinched. These forces can lead to a loss of control and
injury.
Understanding the origin of these forces can help you
to avoid the scare and the loss of control. This saw is
designed to make the return effects are not as noticeable
as with traditional chainsaws.
Always still keep a firm grip and a good level to maintain
control of the tool in doubt.
The most common effects are:
• setback
• recoil,
• retreat
Kickback
The setback can occur when the moving saw chain
meets at the upper quarter of the guide rail on a solid
object or is pinched.
The cutting force exerted on the chain from the saw, a
rotational force in the opposite direction to the chain travel.
This leads to an upward movement of the guide rail.