[. . . ] Before operating the machine, please read through the operating instructions completely, follow the Safety Instructions in this manual as well as the general Safety Instructions for Power Tools in the accompanying booklet. ­ Outside power sockets must be protected with residual-current-operated circuit-breakers (r. [. . . ] Remove the left-hand threaded screw that secures the drill chuck on the drill spindle against unscrewing in left rotation. The drill chuck can then be loosened by lightly striking a Allen key clamped in the drill chuck and screwed off. Clean the flat surfaces on the drill chuck and spindle before mounting. Observe in addition that, when using a rim gear drill chuck, the chuck key must not be attached to the machine with chains, cords or similar means. When drilling or screwdriving, secure the work pieces against being rotated by the drill. Our service personnel will do this and all other servicing work fast and professionally. As the result of a innovative mains cable module 4, this is possible in a quick and easy manner. Press the latches 3 on both sides and pull the mains cable module out of the handle. It is advisable to use socket-head screws since their self-centering action ensures safe work. Optimal screwing is achieved when the screwing device is fixed securely in the screw head. Always make sure that the chosen speed is correct for the purpose for which you are using the machine. High speed drilling in steel and stone will cause premature tool wear. [. . . ] If the tool is defective, please complete the guarantee card and return the unit, guarantee card and a brief description of the problem to the responsible service location. The guarantee obligations assumed by us shall exclude any further claims on the part of the buyer, in particular the right to recission of a sale, reduction and the assertion of damage claims. [. . . ]