Husqvarna K 760 Owners Manual - Page 9

CUTTING BLADES General WARNING! A cutting blade may burst and ! cause injury to the operator. • Cutting blades are available in two basic designs; abrasive baldes and diamond blades. Hand-held, high-speed machines WARNING! Never use a cutting blade at a ! lower speed rating than that of the power cutter. Only use cutting blades intended for high speed handheld power cutters. • Our cutting blades are manufactured for high-speed, portable power cutters. • Check that the blade is approved for the same or higher speed according to the aproval plate of the engine. Never use a cutting blade with a lower speed rating than that of the power cutter. • High-quality blades are often most economical. Lower quality blades often have inferior cutting capacity and a shorter service life, which results in a higher cost in relation to the quantity of material that is cut. • Make sure that the right bushing is used for the cutting blade to be fitted on the machine. See the instructions under the heading Assembling the cutting blade. Suitable cutting blades Cutting blades Abrasive blades Diamond blades Toothed blads K760 Yes* Yes No K 760 Rescue Yes* Yes Yes** *Without water **See instructions under the heading "Toothed blades, carbide tipped blades and emergency situations". Cutting blades for different materials WARNING! Never use a cutting blade for any ! other materials than that it was intended for. Cutting plastics with a diamond blade can cause kickback when the material melts due to the heat produced when cutting and sticks to the blade. Never cut plastic materials with a diamond blade! Follow the instructions supplied with the cutting blade concerning the suitability of the blade for various applications, or consult your dealer in case of doubts. Concrete Metal Abrasive blades X X Diamond blades X X* Plastic Cast iron X X X* * NB! Only specialty blades. Blade vibration • The blade can become out-of-round and vibrate if an excessive feed pressure is used. • A lower feed pressure can stop the vibration. Otherwise replace the blade. Abrasive blades • The cutting material on abrasive blades consists of grit bonded using an organic binder. "Reinforced blades" are made up of a fabric or fibre base that prevents total breakage at maximum working speed if the blade should be cracked or damaged. • A cutting blade's performance is determined by the type and size of abrasive corn, and the type and hardness of the bonding agent. • Ensure the blade it not cracked or damaged in any other way. • Test the abrasive blade by hanging it on your finger and tapping it lightly with a screwdriver or the like. If the blade does not produce a resonant, ringing sound it is damaged. English - 9