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5a
CAUTION: To prevent eye injury, always wear eye protection
when cleaning the Þ lter with compressed air!
Do not use fuel to clean the air Þ lter.
Disengage the cover clasp (1) with the universal wrench and
take off the cover (2).
Push up the combination switch (3) (Choke position) to prevent
dirt particles from falling into the carburetor.
Unhook the clasp (4) in the direction of the arrow with a Þ nger
or the universal wrench.
Pull the air Þ lter (5) up and out.
Take the pre-Þ lter (5a) out of the cover (2).
IMPORTANT: Cover the intake opening with a clean cloth to
prevent dirt particles from getting into the carburetor.
Choosing the right Þ lter: The ß eece Þ lter is for use in dry or
dusty conditions. The nylon Þ lter (available as accessory) is for
use in damp conditions. The pre-Þ lter keeps out sawdust, and
prevents powder snow from getting in when working in winter.
Pry apart the top and bottom of the air Þ lter as shown in Fig-
ure.
Cleaning the ß eece Þ lter: Carefully tap out dust or carefully
blow out dust from the inside with compressed air. Do not
brush the ß eece, as this will force dirt particles into the fabric.
If the Þ lter is very dirty, it can be washed in lukewarm water
with regular dishwashing detergent. Note that the ß eece Þ lter
does not need to be cleaned until there is a noticeable loss of
power. If cleaning the Þ lter does not bring an improvement in
performance, it is time to replace it.
Cleaning the nylon Þ lter: Use a soft brush or blow out dirt
from the inside with compressed air. If the Þ lter is very dirty, it
can be washed in lukewarm water with regular dishwashing
detergent. Clean frequently (several times a day) when working
in very dusty or dirty conditions. Full engine power is possible
only with a clean air Þ lter!
Cleaning the pre-Þ lter: When the pre-Þ lter becomes dirty, wash
it in lukewarm soapy water using standard dishwashing liquid.
Let the air Þ lter dry completely.
Put the top and bottom sections back together.
Place the pre-Þ lter back in the cover.
Before assembling the air Þ lter, check the choke ß ap for any dirt
particles. If there are any, remove them with a brush.
CAUTION: If the air Þ lter becomes damaged, replace imme-
diately! Pieces of cloth or large dirt particles can destroy
the engine!
Insert the air Þ lter (5) and press the clasp (4) in the direction of
the arrow until it engages.
Move the combination switch (3) down and press the throttle (6)
once all the way, to deactivate the half-throttle lock.
Put the cover (2) back on and afÞ x it with the cover clasps
(1).
Cleaning the air Þ lter