Scheppach MPT3400-4PGE Anleitung Seite 39

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.
Grinding the safety hood blade
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 (~25°). File in one direction only.
Replacing and resharpening the cutting blade at the
end of the mowing season always resharpen the
cutting blade or, if required, replace the cutting blade
with a new one.
Unbalanced blades will cause the brush cutter to
vibrate violently-risk of accident!
Lubricate angle transmission
Lubricate with lithium-based
the screw 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
between 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
spark plug by turning.
• When the electrode is severely worn out or reveals
a strong incrustation, the spark plug must be
replaced with an equivalent plug.
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grease. Remove
to remove the
• 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.
• When using a torque wrench, the tightening torque
is 12-15 Nm.
• Plug the spark plug socket correctly on the plug.
Clean the air filter Fig. 32-35
Soiled air filters reduce the engine power by supplying
too little air to the carburetor. Dust and pollen plug up
the pores of the filter made of foamed plastic. Regular
checks are therefore essential.
• Unclip the air filter cover and remove the sponge
filter element.
• To avoid objects falling into the air tank, replace the
air filter cover.
• Wash the filter element in warm soap water, rinse
and allow drying naturally.
Important: Never clean the air filter with petrol or
inflammable solvents.
In order not to shorten the service life of the engine, a
damaged air filter must be replaced at once.
m Warning!
Never run the engine without the air filter element
installed.
Care of the guide rail
Turn the rail around every time you have the chain
sharpened or replaced. This will avoid a one-sided
wear of the rail, especially at the top and bottom.
Regularly clean
1 = the opening for the oil supply
2 = the oil passage
3 = the raceway groove of the rai
Servicing and sharpening of saw chain
The correct sharpened chain
Working effectively with the chainsaw is only possible
if the chain is in good condition and sharp. This also
reduces the risk of kickback. The chain can be re-
sharpened by any dealer. Do not attempt to sharpen the
chain yourself unless you have the necessary special
tools and experience. A properly sharpened chain goes
way through the wood and it requires very little pressure.
Do not work with a dull or damaged chain. It increases
physical exertion, increase the vibrations and leads to
unsatisfactory results and higher wear.
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