23 ENGLISHMAINTENANCECAUTION: Always be sure that the tool isswitched off and the battery cartridge is removedbefore attempting to perform inspection ormaintenance.NOTICE: Never use gasoline, benzine, thinner,alcohol or the like. Discoloration, deformation orcracks may result.To maintain product SAFETY and RELIABILITY,repairs, any other maintenance or adjustment shouldbe performed by Makita Authorized or Factory ServiceCenters, always using Makita replacement parts.Replacing filter of dust caseOptional accessory1. Remove the dust case while pressing down thelever of the dust case.1► 1. Lever2. Insert the flat-blade screwdriver into the slots ofthe filter cover to remove the filter cover.21► 1. Flat-blade screwdriver 2. Filter cover3. Remove the filter from the filter case.12► 1. Filter 2. Filter case4. Attach a new filter to the filter case, and thenattach the filter cover.5. Close the cover of the dust case, and then attachthe dust case to the dust collection system.Replacing sealing capOptional accessoryIf the sealing cap is worn out, the performance of thedust collection decreases. Replace it if it's worn out.Remove the sealing cap, and then attach a new onewith its protrusion facing upward.12► 1. Protrusion 2. Sealing capOPTIONAL ACCESSORIESCAUTION: These accessories or attachmentsare recommended for use with your Makita toolspecified in this manual. The use of any otheraccessories or attachments might present a risk ofinjury to persons. Only use accessory or attachmentfor its stated purpose.If you need any assistance for more details regard-ing these accessories, ask your local Makita ServiceCenter.• Carbide-tipped drill bits (SDS-Plus carbide-tippedbits)• Core bit• Bull point