User manual KRESS SBLR 2480

[. . . ] When in middle position, the reversing switch prevents the accidental activation of the full wave electronic switch (1), for example when changing tools or assembling/disassembling the drill chuck. Percussion drilling device The machine has an integrated percussion mechanism and can be switched from normal drilling to percussion drilling. The sliding switch (4) allows switching from normal drilling to percussion drilling or vice-versa while the machine is in operation. [. . . ] Operating the quick-change chuck This chuck has been developed especially for use with percussion drills. The chuck has a release safety lock which prevents any unintentional release of the drilling tool even at high impact frequencies. After attaching the jaw chuck to the tool, a slightly higher torque must be used to engage the clamping force safety lock. The torsion angle of the collar must be approximately 50° during the locking procedure. Turn the collar firmly in the "ZU" direction until a click is heard. The drill is only properly tensioned when the collar has been turned as far as possible and no more clicking is heard. Use as a screwdriver Screwdriver inserts (bits) can fitted directly into the chuck. The electronic controls are sensitive and should be handled with utmost care to prevent any breaking of tap ­ particularly when cutting threads into blind holes. 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. Use tool steel twist drills for soft materials such as wood and plastics; carbide-tipped stone drills for stone and concrete; high speed twist drills for steel and iron. Also make sure that, using a gear-rim chuck, the drill chuck key is never fastened to the drill with chains, strings or by similar means. maintenance The machine's motor has life-time lubrication and requires no special maintenance. However, should you operate the machine on a continuous basis over long periods of time we recommend that you send us the machine for thorough cleaning and an inspection. [. . . ] We are therefore able to guarantee free servicing of any production or material faults which arise in the 24 months after the date of sale to the purchaser. We reserve the right to repair defective parts or else replace them with new parts. The guarantee will be rendered void if the device is used improperly, mistreated or opened up by unauthorised repair personnel. [. . . ]