BA 1001/1501/2001 us – Edition 3.3 * 12001b520.fm 5-17Maintenance5.7 Air filter (1001/1501: from serial no. EA01743)Replacing the air filterThe air filter elements must be replaced:• If the yellow piston B in dirt indicator A reaches the red service mark C.• Every 1000 operating hours or once a year at the latest.1 Park the machine, stop the engine, remove the starting key and carry it with you.2 Open the engine cover.3 Remove dirt and dust from the air filter housing and the area around it.4 Fold bow clips D on lower housing section E to the outside.5 Remove lower housing section E.6 Carefully remove outside filter G with slightly turning movements.7 Ensure that all contamination (dust) inside the upper and lower housing sections(including the dust valve) has been removed.8 Clean the parts with a clean lint-free cloth, do not use compressed air.9 Carefully remove inside filter H with slightly turning movements.10 Check the new inside filter H and outside filter G for damage and carefully insertthem in the air filter housing.11 Close bow clips D.12 Ensure that dust valve F shows downward once it is installed.13 After replacing the filters, press button J to reset the yellow piston B.Fig. 87: Removing the lower housing sectionABCFJFig. 89: Lower housing sectionDEFig. 91: Outside filterGFig. 93: Inside filterH
