8Remove and check the carbon brushes regularly.Replace when they wear down to the limit mark. Keepthe carbon brushes clean and free to slip in the holders.Both carbon brushes should be replaced at the sametime. Use only identical carbon brushes.Insert the top end of slotted bit screwdriver into the notchin the tool and remove the holder cap cover by lifting it up.123010092Use a screwdriver to remove the brush holder caps. Takeout the worn carbon brushes, insert the new ones andsecure the brush holder caps.12010093Reinstall the holder cap cover on the tool.Replacing bladesThe service life of the blades varies in terms of theworkpiece to be cut. The following reference tablesindicate the approximate service life of the blades.When the blades become dull, ask Makita AuthorizedService Centers to replace the blades.For BJS160 and BJS161Material Cutting thickness(mm)Life of blades(m)Mild steel plate 2001.61.2Stainless steel plate 150Aluminum plate 4002.5(SPCC)(SUS304)(A-5052)010094For BJS100 and BJS101Material Cutting thickness(mm)Life of blades(m)Mild steel plate 1201.00.7Stainless steel plate 50(SPCC)(SUS304)010739To maintain product SAFETY and RELIABILITY, repairs,any other maintenance or adjustment should beperformed by Makita Authorized Service Centers, alwaysusing Makita replacement parts.OPTIONAL ACCESSORIESCAUTION:• These accessories or attachments arerecommended 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 orattachment for its stated purpose.If you need any assistance for more details regardingthese accessories, ask your local Makita Service Center.• Thickness gauge• Center blade• Side blade R• Side blade L• Hex wrench• Makita genuine battery and chargerNOTE:• Some items in the list may be included in the toolpackage as standard accessories. They may differfrom country to country.1. Brush holdercap2. Screwdriver1. Brush holdercover2. Notch3. Screwdriver