245364A125345aCAUTION: To prevent eye injury, always wear eye protectionwhen cleaning the fi lter with compressed air!Do not use fuel to clean the air fi lter.Disengage the cover clasp (1) with the universal wrench andtake off the cover (2).Push up the combination switch (3) (Choke position) to preventdirt particles from falling into the carburetor.Unhook the clasp (4) in the direction of the arrow with a fingeror the universal wrench.Pull the air filter (5) up and out.Take the pre-filter (5a) out of the cover (2).IMPORTANT: Cover the intake opening with a clean cloth toprevent dirt particles from getting into the carburetor.Choosing the right fi lter: The fleece filter is for use in dry ordusty conditions. The nylon filter (available as accessory) is foruse in damp conditions. The pre-filter keeps out sawdust, andprevents powder snow from getting in when working in winter.Pry apart the top and bottom of the air filter as shown in Fig-ure.Cleaning the fl eece fi lter: Carefully tap out dust or carefullyblow out dust from the inside with compressed air. Do notbrush the fleece, as this will force dirt particles into the fabric.If the filter is very dirty, it can be washed in lukewarm waterwith regular dishwashing detergent. Note that the fleece filterdoes not need to be cleaned until there is a noticeable loss ofpower. If cleaning the filter does not bring an improvement inperformance, it is time to replace it.Cleaning the nylon fi lter: Use a soft brush or blow out dirtfrom the inside with compressed air. If the filter is very dirty, itcan be washed in lukewarm water with regular dishwashingdetergent. Clean frequently (several times a day) when workingin very dusty or dirty conditions. Full engine power is possibleonly with a clean air filter!Cleaning the pre-filter: When the pre-filter becomes dirty, washit in lukewarm soapy water using standard dishwashing liquid.Let the air filter dry completely.Put the top and bottom sections back together.Place the pre-filter back in the cover.Before assembling the air filter, check the choke flap for any dirtparticles. If there are any, remove them with a brush.CAUTION: If the air fi lter becomes damaged, replace imme-diately! Pieces of cloth or large dirt particles can destroythe engine!Insert the air filter (5) and press the clasp (4) in the direction ofthe 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 affix it with the cover clasps(1).Cleaning the air fi lter