Stihl HS 87 R Product Instruction Manual - Page 19

Cleaning the Air Filter The machine is equipped with either a felt or paper filter element. If there is a noticeable loss of engine power Felt filter 2 1 Paper filter English 0023BA022 KN 2 1 0023BA020 KN N Turn the choke lever to g N Take out the screw (1). N Remove the filter cover (2). N Clean away loose dirt from around the filter and inside the filter cover. N Position filter cover against the left side of the filter housing and swing it to the right - the two lugs (arrows) must engage the filter cover openings. N Insert screw and tighten it down firmly. 0023BA010 KN 0023BA021 KN N Turn the choke lever to g N Take out the screw (1). N Remove the filter cover (2). N Clean away loose dirt from around the filter. N Remove the filter element (3). N Fit a new filter element. As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air. Do not wash. N Install the filter element. N Fit the filter cover. N Insert screw and tighten it down firmly. 3 N Remove and check the filter element (3) - replace if dirty or damaged. N Fit the filter in the filter housing. HS 87 R, HS 87 T 17