Air filter
After working for longer time, you should clean the air
filter. Dust and pollen plug up the pores of the filter made
of foamed plastic.
- Remove the cover (B33), and wash the filter (B34)
in mild soap water. Caution: Do not use any
gasoline or solvent.
- Dry the filter before you insert it again.
In order not to shorten the service life of the engine, a
damaged air filter must be replaced at once.
Adjustment of Spark Plug
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 (B35).
- Wait until the engine has cooled down completely.
- Loose the screw and remove the plastic cover (B36-1).
- Pull the spark plug cap (B36-2) off the spark plug,
and use the supplied spark plug wrench to
remove the spark plug by turning (B37).
- When the electrode is severely worn out or
reveals a strong incrustation, the spark plug must
be replaced 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.
- When using a torque wrench, the tightening
torque is 12-15 Nm.
- Plug the spark plug socket correctly on the plug.
Trimming the Line Knife
- When the trimming line is no longer cut clean
during feeding, use a file to re-sharpen the cutting edge
(B38). File in one direction and in the
specified angle.
Cleaning
Use a moist piece of cloth to clean the plastic parts.
Do not use any cleaning agents, solvents, or sharp
objects.
During the course of work, wet grass and weed
wraps around the drive shaft below the cutting
guard for technical reasons. Remove this, otherwise the
engine will overheat because of too much friction.
Periodical Checks
Keep in mind that following specifications relate to
normal usage. Owing to circumstances (longer
periods of daily work, severe dust exposure, etc.),
the specified intervals will become correspondingly
shorter.
Before start of work and after refueling: Check if
cutting tools are seated securely, general view
inspection, sharpen cutting blade (also, if necessary).
Weekly inspection: Lubrication of gear (also, if
necessary).
If necessary: Retighten accessible fastening screws and
nuts.
You will avoid excessive wear and tear and
damages of the tool, when you follow the
instructions in this manual.
The user is responsible for all damages caused by
non-compliance with instructions in this manual.
This also applies to non-authorized modifications
of the tool, use of non-authorized spare parts,
accessories, working tools, unrelated and not
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