Working Instructions - Scheppach MFH4200-4BP Translation Of Original Instruction Manual

The further you push the throttle lever, the higher
the motor speed. When releasing the throttle le-
ver, the motor becomes idle and the cutting tools
stop. Fig.30. The cutting tools should not con-
tinue turning and should not move when the mo-
tor is idle.
7. If there are problems, immediately turn the mo-
tor switch (7) to "0" so the motor stops. Caution:
The cutting tools may continue turning for a few
seconds. Fig.30
8. In an emergency, the safety button (m) can be
pressed from the harness. The machine then de-
taches immediately from the carrying strap and
falls to the ground. Fig. 60
9. If the motor is warm, you can leave the choke le-
ver in the "warm start and work" position
Note: If the engine does not start up even after sev-
eral attempts, read the section „Engine troubleshoot-
ing".
Note: Always pull the starter cord out in a straight
line. If it is pulled out at an angle, then friction will oc-
cur on the eyelet. As a result of this friction, the cable
will become frayed and will wear away faster. Always
hold the starter handle when the cable retracts.
Never allow the cable to snap back when it has been
pulled out.
Note: Do not start the motor in tall grass.
m Attention: When the engine has been switched
off, the cutting unit continues running for several sec-
onds therefore do not touch the cutting unit until it
has come to a standstill!

9. Working instructions

Working with brush cutter / grass trimmer
• When you work with the petrol brush cutter for the
first time, familiarize yourself with the operation
and control of the petrol cutting blade without run-
ning engine.
• The design of the petrol brush cutter allows for op-
eration only at the right side of the user's body.
• Keep the petrol brush cutter firmly with both hands
on the handles.
• Always make sure that the cutting tool continues to
rotate briefly after the throttle has been released.
• Always so that the cutting tool no longer turns in a
proper engine idle not press down the throttle.
• Always work with high speed so you have the best
cutting results.
• Poke when working on a stone or a tree, turn off
the engine and remove the spark plug then exam-
ine the petrol brush cutter for damage.
• Caution: Always be extra careful when working in
difficult terrain and slopes. Cut tall grass gradually
so as not to overload the unit.
• Always wear safety glasses and hearing protection
and a safety helmet.
Mowing with grass trimmer
• Use the plastic line cassette for a clean cut also at
uneven edges, fencing posts, and trees.
• Carefully advance the trimming line to an obstacle,
and use the tip of the line to cut around the ob-
stacle. When the trimming line comes into contact
with stones, trees, and walls, the line wears out or
breaks off ahead of time.
• Swing the petrol cutting blade like a normal scythe
horizontally from right to left and back again. You
define the cutting height depending on how high
you are holding the tool.
. • Never replace the nylon line with a metal wire.
RISK OF INJURIES
Automatic thread trimming (Fig. 44)
The petrol cutting blade is delivered with a filled line
cassette. This line will wear out during work. To feed
new line, forcefully press the head of the line cas-
sette onto the ground while the engine is running at
working speed.
The line is automatically fed due to centrifugal force.
The knife at the line guard will shorten the trimming
line to the correct length. Run the trim line approach
cautiously to an obstacle and cut with the tip of the
line around the obstacle.
Mowing with brush cutter and hedge trimmer
Use the cutting blade to comb through brushwood,
rank growth, young tree populations (trunk diameter
of maximum 2 cm), and high grass.
• While using metal cutting tools, there is generally
a risk of recoil, when the tool hits a solid obstacle
(stones, trees, branches, etc.). Thereby, the tool is
hurled backwards against the rotating direction.
• To cut rank growth and brushwood, you "immerse"
the cutting blade from the top.
CAUTION: Be especially careful, when using this
working technique, because the further away the cut-
ting tool is from the ground, the higher is the risk that
objects to be cut and particles will be hurled side-
ways.
Angle adjustment
By swivelling the cutter head, the hedge trimmer can
be adjusted to the working conditions from +90° to
-75°. Fig. 49.
• Warning! Adjust the angle only when the motor has
been turned off.
• Push both levers down and put the cutter head in
the required position. Fig. 48
• Release both levers until they click into place in
the notch.
• Before use, check that the adjustment levers have
clicked into place properly. Fig. 49
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