[. . . ] Clean & oil Our products are designed to meet the highest standards of quality, functionality and design. When the distance comb is removed, the cutting system should not be pressed into the skin. [. . . ] To choose the desired length setting (4), push down the length selector and shift it upward. Keep the distance comb flat on the hair, parallel to the head, and slowly move against the direction of hair growth. The distance comb can only be taken off when the length selector is set to «1». Move the cutting system only in a parallel position to the skin (A, cutting hair). Slowly and carefully move the appliance against the direction of hair growth. Only when trimming contours should the cutting system be positioned vertically (B, trimming). Make sure you do not tilt the appliance while it is touching the skin (C). To cut longer hair, hold it up with the barber's comb (10) and cut it with the scissors (11) or with the clipper (distance comb must be removed from the clipper ­ only possible at setting «1»). After each use and when the distance comb is taken off, slightly shake or brush hair from the clipper and the distance comb. Using the brush (13), clean the cutting system and the inside of the clipper. To keep the cutting system working properly, oil it with light machine oil after each use (D). Preserving the rechargeable battery (HC 50 only) In order to optimise the capacity and life of the battery, it should be fully discharged through regular use every 6 months approximately. [. . . ] To obtain service within the guarantee period, hand in or send the complete appliance with your sales receipt to an authorised Braun Customer Service Centre. For UK only: This guarantee in no way affects your rights under statutory law. [. . . ]