Scheppach MFH5300-4BP Originalbetriebsanleitung Seite 49

the chainsaw guide bar is reduced, the chain becomes
blunt quicker and the rail wears a great deal due to
overheating. You can see that there is too little oil if
smoke is produced or the rail discolours.
To check the saw chain lubrication, hold the chainsaw
with the saw chain over a sheet of paper and give it full
throttle for a few seconds.
The oil quantity can be checked on the paper. The saw
chain must always fling a small amount of oil. After a
few seconds, slight traces of oil must be visible.
Always ensure that there is enough oil in the oil tank
for saw chain lubrication.
Automatic saw chain lubrication - fine adjustment
Fig. 61.
The amount of oil can be reduced or increased with
the screw (R).
Clockwise - the amount of oil is reduced (-)
Anti-clockwise - the amount of oil is increased (+)
Precautionary measures for the sawing procedure
Never stand directly under the branch that you want
to saw off. 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 branch.
Hold the device firmly with both hands during the cut-
ting process and always ensure that you are in a bal-
anced position and have secure footing.
• Never attempt to operate your tool with one hand.
Losing control of your tool can lead to serious or fa-
tal injuries. Never work on a ladder, a tree branch or
any other unsafe surface.
• Do not saw strong branches in one cut, always in
several steps.
• Place the saw chain on the branch to be cut.
• Apply light pressure to move the device, but do not
overload the engine.
Before cutting, clear the work area of obstructive
branches and undergrowth. Then create a retreat area
away from the place where cut branches can fall and
remove all obstacles.
Always keep the work area clear, remove the cut
branches immediately. Pay attention to your location,
the wind direction and the possible felling direction of
the branches. Be prepared for fallen branches to kick
back. Place all other tools and devices at a safe dis-
tance from the branches to be cut, but not in the with-
drawal area.
Always monitor 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 unex-
pectedly while cutting.
Also watch out for broken and dead branches that
could come loose due to the vibrations and fall on you.
For very thick or tough branches, first make a small cut
beneath the branch before working from top to bottom
to prevent it breaking off.
Basic cutting technique
Heavy branches break off easily when sawing and
long strips of bark break off from the trunk which caus-
es lasting damage to the tree. You can significantly re-
duce this risk with the following cutting technique:
• First saw the branch about 10 cm away from the
trunk on the underside of the branch.
• Make another cut about 15 cm to the trunk from
above.
• Keep sawing until the branch breaks off. There is now
no longer a risk of damaging the bark on the trunk.
• Finally, remove the remaining branch stump with a
clean cut from above along the trunk.
• To keep the damage to the tree to a minimum, we
also recommend sealing the cutting area with graft-
ing wax.
Dangers from reactive forces
Reactive forces occur during the operation of the saw
chain. The forces that are to be applied to the wood
act against the operator. They occur when the moving
chain comes into contact with a solid object such as a
branch or is jammed. These forces can lead to a loss
of control and injuries.
Understanding how these forces occur can help you
avoid the moment of shock and loss of control.
This saw is designed so that the kick-back effects are
not as noticeable as with conventional chainsaws.
Nevertheless, always make Container you have a firm
grip and secure footing so that you can keep control of
the tool in case of doubt.
The most common effects are:
• Kick-back
• Recoil
• Kick-back
Kick-back
Kick-back can occur if the running saw chain strikes
a solid object on the upper quarter of the guide rail or
becomes jammed.
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