Scheppach MFH5200-4P Traducción De Las Instrucciones Originales De Funcionamiento página 37

Working with pole saw
Oiling of the chain and bar
It is recommended to use commercial chain oil.
• Remove the oil tank cap. (Fig. 47 / L)
• Fill the chain oil tank (Fig. 47 / M ) to 80% with
chain oil.
• Close Oil tank cap (Fig. 47 / L)
Oil Supply Control
Always make sure the automatic oiler system is
working properly. Keep the oil tank filled with Chain,
Bar and Sprocket Oil.
Adequate lubrication of the bar and chain during cut-
ting operations is essential to minimize friction with
the guide bar.
Never starve the bar and chain of lubricating oil. Run-
ning the saw dry or with too little oil will decrease
cutting efficiency, shorten saw chain life, cause rapid
dulling of chain, and lead to excessive wear of bar
from overheating. Too little oil is evidenced by smoke
or bar discoloration.
To check the saw chain lubrication, hold the chain
saw with the saw chain over a piece of paper and
give a few seconds of full throttle.
The oil quantity can be checked on the paper. The
chain must always be thrown off a small amount of
oil. After a few seconds, a light oil trail must be vis-
ible.
Automatic oiler system
Fine adjustment Fig 49.
Use screw (R) to reduce or increase the amount of
oil.
Clockwise - oil quantity is reduced (-)
Counterclockwise - oil quantity increases (+)
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 prun-
ing saw at an angle of 60 ° to the road.
Keep both hands well with the device during the cut-
ting process and pay you up to an equilibrium posi-
tion 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 cut-
ter bar.
• Make sure that the chain tension is always cor-
rectly adjusted.
• Practice for guiding the device slight pressure, but
you do not overload the motor.
Clear the work area before cutting interfer-
ing branches and undergrowth. Then you cre-
ate a retreat area, far from the spot where the cut
branches fall on, and remove any obstacles there.
Keep the work area clean, remove the cut branches
immediately. Pay attention to your point, wind direc-
tion 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 dis-
tance from the branches to be cut, but not in the re-
treat 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 branch-
es 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 chain saws.
Always still keep a firm grip and a good level to main-
tain 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.
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