User manual MAKITA 8406C

[. . . ] Do not touch the bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin. when using a wet type of diamond core bit , ALWAYS USE AN EARTHLEAKAGE CIRCUIT BREAKER TO PROTECT YOU AGAINST ELECTRIC SHOCK. For additional protection against electric shock, be sure to wear rubber gloves and rubber boots. 1) The position of the side grip can be changed in 30° increments. [. . . ] If the tool is operated continuously at low speeds for a long time, the motor will get overloaded and heated up. Always keep the speed adjusting dial positioned within the range of numbers 1 through 6. Never turn it beyond the numbers 1 through 6. For "rotation with hammering", turn the change lever to the t position. CAUTION: Always set the action mode change lever carefully into the correct position. If you operate the tool with the action mode change lever positioned half-way between the S position and the t position, tool damage may result. diamond core drilling CAUTION: · When performing diamond core drilling operations, always set the change lever to the S position to use "rotation only" action. If performing diamond core drilling operations using "rotation with hammering" action, the diamond core bit may be damaged. The drilling efficiency and service life of the diamond core bit varies greatly depending on the kind or condition of the material to be drilled. In general, hard material may dull the bit soon and soft materials such as "green" concrete or concrete blocks may shorten the service life of the bit. If the drilling action of the diamond core bit begins to diminish, dress the bit using an old discarded coarsegrit bench grinder wheel or concrete block. tightly secure the bench grinder wheel or concrete block and drill in it. Continued use of dull bits may cause the diamond chips to break or fall off. When using a wet type of diamond core bit, always install a cover (optional accessory) on the tool to thoroughly protect the tool from water. After using a wet type of diamond core bit, wash it in water and store with the sponge and guide ring in a dry location. Carefully fill the bit about half full of water. Insert the sponge into the bit gently with the side with the rivet facing upwards as far as it will go. 9) CAUTION: When filling the bit with water, be especially careful not to let the tool get wet. 11) After drilling a pilot groove, turn the tool off and then remove the guide ring and adhesive sheet. 12) Place the bit into the pilot groove and turn the tool on. Immediately before hole breakthrough, the tool should be held straight in relation to the hole. After completing the hole, turn the tool off. [. . . ] Take out the worn carbon brushes, insert the new ones and secure the brush holder caps. 23) To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers always using Makita replacement parts. FÖRSIKTIGHET: Kontrollera alltid att strömbrytaren fungerar normalt och återgår till det avstängda läget "OFF" när den släpps, innan kontakten till verktyget sätts i. Se till att vredet för varvtalsreglering alltid står i intervallet mellan siffrorna 1 till 6. [. . . ]