© by WilTec Wildanger Technik GmbH Item 92670 Page 11
http://www.wiltec.de 11 2023-1
Air filter
A dirty air filter prevents air from entering the carburettor and reduces the performance of the petrol
engine. When using petrol engines in dusty conditions, the air filter should be cleaned more frequently
than specified in the maintenance schedule.
Important! If the air filter element is missing or damaged, dust can get into the petrol engine and accel-
erate its wear. Damage caused for this reason is excluded from the warranty.
Checking
Remove the air filter vent cover and check the element. Clean or replace the air filter. Replace the air
filter element if it is damaged.
Cleaning
1. Unscrew the nut on the air-filter cover and remove the air-filter cover.
2. Remove the air-filter element from the air-filter holder.
3. Check the element and replace it if necessary. The air-filter element must be replaced at the
time recommended in the maintenance schedule.
4. Clean the air filter before reusing it.
5. Tap the air-filter insert several times on a solid surface to remove the dust or blow the dust from
the side of the air-filter holder using an air compressor (≤ 2.1 Kgf/cm²).
6. It is forbidden to remove the dust with a brush, as it will be brushed into the fibres of the air filter.
Replace the air filter if there is too much dust.
7. Wipe off the dust outside the air filter or on the cover of the air filter with a damp cloth. Make
sure that the dust does not get into the carburettor through the air duct.
8. Reinsert the air-filter insert and make sure that it and the bracket are firmly seated.
9. Tighten the nut on the air-filter cover.
Spark plug
Recommended spark-plug model: F6RTI-5. Commercially available petrol engines can be operated in
the correct temperature range with the recommended spark plug.
Important!
• The use of an unsuitable spark plug will damage the petrol engine.
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