ATIKA BF 43-2 Manual Original página 28

Do not puff/blow out dirt particles; otherwise there is a
risk of eye injury.
 Allow the air filter to dry well and reinsert it.

Damaged air filters must be replaced without delay.
Checking / replacing the fuel filter

Check the fuel filter (40) if required. A contaminated fuel filter
restricts the fuel supply.
Open the tank cap (23) and pull the fuel filter (40) through the
opening using a wire hook.
⇒ Slight contamination:
Pull the fuel filter from the fuel line and clean it in petroleum
ether.
⇒ Bad contamination:
Replace the fuel filter.
Checking / replacing the spark plug
- Do not touch the spark plug or the spark plug
connector while the engine is running. High voltage!
- Risk of burning on the hot engine.
- Wear protective gloves.
Check the spark plug and the spark gap on a regular basis.
For this proceed as follows:
Allow the engine to cool down.
Pull the spark plug connector (19) from the spark plug

(41).
Remove the spark plug using the supplied spark plug

wrench (14).
 The spark gap must be 0.6 to 0.7 mm.
 Clean the spark plug when it is contaminated.
 Install the spark plug in reverse order.
Do not overtighten the spark plug.

A loose spark plug may overheat and damage the
engine.

Tightening the spark plug too firmly may damage the
thread in the cylinder head.
Replace the spark plug:
every 100 hours or once in a year (whichever case comes
−
first)
when the insulating body is damaged,
−
when the electrodes show excessive erosion,
−
when the electrodes show excessive dirt or oil.
−
Use the following spark plug type: BOSCH L8RTF
Checking the ignition spark
 Remove the spark plug (41).
Firmly connect the spark plug connector (19).
 Use an insulated pair of tongs to press the spark plug
against the engine body (away from the spark plug hole).
 Put the ON/OFF switch (33) to the position.
Pull the cranking rope.
28

If there is no spark visible between the electrodes, the
spark plug may be defective.
Silencer / exhaust outlet
Check the silencer (20) on a regular basis.


Clean the exhaust outlet on a regular basis.
Do not clean the silencer when the engine is hot.
Danger of burning!
Lubricate the gearbox


Lubricate the gearbox every 8 to 25 operating hours. Use
SHELL ALVANIA RL3, for example, or an equivalent grease
brand.
 Put the grease gun onto the zerk fitting (Q).
 Force some grease into the zerk fitting.
Checking or adjusting the idle speed
The carburettor is factory-set to the correct idle speed so that the
correct fuel-air mixture is fed to the engine.

The idle speed is set correctly when the engine runs evenly
and the cutting tool is stopped.
Check the idle speed only with
warmed up engine,
−
clean air filter.
−
In the cases below the carburettor (idle speed) has to be
corrected:
Cutting tool rotates while idling
−
Speed too high)
−
Erratic running or lack of acceleration (idle speed too low)
−
Adjustment to weather conditions and temperatures
−
An incorrect carburettor adjustment results in
severe engine damages. Do not continue working
with the machine in such a condition.

Contact a specialist workshop and have the carburettor
adjustment done.
Cleaning
Clean the device thoroughly after each application so

that the faultless function is kept.
Clean and oil all moving parts regularly.
•
Clean the case with a soft brush or a dry cloth.
•
Do not clean the machine under running water or using a high-
•
pressure cleaner.
Do not use solvents (gasoline, alcohol, etc.) for plastic parts,
•
otherwise such parts may be damaged.
Keep handles dry and free of oil and grease.
•
Water, solvents and polishing agents shall not be
applied.
 Make sure that the ventilation slots for the engine cooling
•
are free (risk of overheating).