Scheppach MFH5200-4P Bedienungs- Und Wartungsanleitung Seite 43

Before performing any maintenance or cleaning
work, always turn off the engine and pull out the
spark boot plug.
1. Do not spray the unit with water. It damages the
engine.
2. Clean the unit with a cloth, hand brush, etc.
3. Use a moist piece of cloth to clean the plastic
parts. Do not use any cleaning agents, solvents,
or sharp objects.
4. During the course of work, wet grass and weed
wraps around the drive shaft below the cutting
guard for technical reasons. Remove this, oth-
erwise the engine will overheat because of too
much friction. Fig. 38
Regular checks
Keep in mind that following specifications relate to
normal usage. Owing to circumstances (longer pe-
riods of daily work, severe dust exposure, etc.), the
specified intervals will become correspondingly
shorter.
• Before starting work, after tank filling, after impact
or dropping:
Check the cutting tools for secure seating, general
visual check for cracks and damage.
• Immediately replace damaged or blunt cutting
tools, even in the event of minor hairline cracks.
• Sharpen cutting tools (also when required).
• Weekly inspection:
Lubrication of gear (also, if necessary).
• If necessary:
Retighten accessible fastening screws and nuts.
You will avoid excessive wear and tear and dam-
ages of the tool, when you follow the instructions
in this manual.
Replacing the line spool/cutting line Fig. 24-29
1. Pull off the line guard cap from the line spool
(5) by forcefully pressing between the retaining
plates.
2. Remove the spool with line remaining and the
compression spring.
3. Remove the used up spool.
4. Take the new line spool and pull out 10 cm at both
lines each.
5. Now, place the line spool (5) on the tapered
spring, and guide both lines each through the
round metal lugs at the line spool housing.
6. Then place the spool cover on the new line spool
(5). Turn it so that the plates of the spool cover are
pushed with the springs in the line spool housing.
7. Now, press the spool cover together with the line
spool, until it engages in the line spool housing.
8. The knife (A) in the protective hood (18) shortens
the trimming line to the correct length, when the
engine starts again.
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Grinding the safety hood blade Fig. 18 (A)
The safety hood blade can become blunt over time.
• When you notice this, undo the screw holding the
safety hood blade on the safety hood.
• Clamp the blade in a vise.
• Sharpen the blade with a flat file and make sure
that the angle of the cutting edge is not altered in
the process. File in one direction only.
• Important! Reassemble the cutting knife.
Replacing and resharpening the cutting blade at the
end of the mowing season always resharpen the cut-
ting blade or, if required, replace the cutting blade
with a new one.
Grinding cutter blade (17)
If the blade is only slightly dull, they can re-sharpen
themselves.
• Clamp the blade in a vise.
• Sharpen the blade with a flat file and make sure
that the angle of the cutting edge is not altered in
the process. (~25°) File in one direction only.
• Replace the blade at the latest after five times
sharpening.
Replace the blade with heavy wear or broken blade.
Unbalanced blades will cause the brush cutter to vi-
brate violently-risk of accident!
Lubricate angle transmission, Brush cutter
Fig. 8 (O)
Lubricate with lithium-based grease. Remove the
screw Fig. 8 (O) and put in the grease, turning the
shaft manually until grease emerges, then replace
the screw.
Attention! Fill only a small amount of grease. Do not
overfill.
Change and clean the spark plug Fig. 30-31
Check the spark plug air gap at least once a year or
when the engine starts poorly. The correct gap be-
tween ignition flag and ignition contact is 0.25"/0.63
mm.
• Wait until the engine has cooled down completely.
• Pull the spark plug cap off the spark plug, and
use the supplied spark plug wrench to remove the
spark plug by turning.
• When the electrode is severely worn out or reveals
a strong incrustation, the spark plug must be re-
placed with an equivalent plug.
• A strong incrustation of the spark plug can be
caused by: Amount of oil is too high in the gasoline
mix, poor oil quality, old gasoline mix, or plugged
up air filter.
• Screw the spark plug by hand completely into the
thread. (Avoid jamming it)
• Use the supplied spark plug wrench to tighten the
spark plug.
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