Stihl TS 500i STIHL Cutquik174 Product Instruction Manual - Page 13

Operating Instructions WARNING The wheel guard is adjustable. It is extremely important that the wheel guard is in place and set to suit the type of work and your stance. The guard should always be adjusted so that the user is not endangered by particles of the material being cut, sparks or pieces of damaged wheels either directly or by ricochet. Failure to follow this instruction could result in serious or fatal injury. WARNING Your cut-off machine is equipped with a wheel guard limit stop that restricts the positioning of the wheel guard. To reduce the risk of injury from wheel contact and/or reactive forces and to avoid damaging the guarding system, never attempt to pull the adjusting lever past the limit stop. WARNING Always check the wheel before use and after unintentionally striking any object; frequently check it during use when it is stopped. Look for cracks and make sure that it is undamaged and in good condition and that no pieces have broken off. See sections on "Abrasive 002BA550 AM Wheels" and "Reactive Forces" in this manual. Check the wheel guard for cracks. If you discover any breaks or cracks, fit a new guard before further use. WARNING It is essential to determine the exact direction of the cut before applying the abrasive wheel to the work. Wheels are constructed for radial pressure only. Lateral pressure must be avoided. Hold the cut-off machine steady. To reduce the risk of serious or fatal injury, do not change the direction of the cut during the cut as this may produce a high torsional load on the abrasive wheel and may cause it to bind, break or shatter. A binding of the wheel can also result in reactive forces. See section on "Reactive Forces." WARNING Do not use abrasive wheels for rough grinding. Large bending stresses occur during such work, which may cause abrasive wheels to shatter or break and result in serious or fatal injury. WARNING To reduce the risk of injury from shattered abrasive wheels: 1. Do not exceed the maximum operating speed marked on the wheel. 2. Do not use a wheel that has been dropped. English 3. Test each new wheel immediately after installation for approximately one minute at maximum speed without cutting, making sure to keep bystanders away. 4. Do not cut any material for which the abrasive wheel is not authorized. 5. Do not grind on the side of the abrasive wheel. 6. Do not twist, thrust, knock or drop the machine. This can cause damage to the wheel. To achieve a clean and efficient cut, pull the abrasive wheel across the work or move it "to and fro" in the cutting direction. Do not use force to push the abrasive wheel into the work. Insert the wheel into the material only as deep as necessary to make the cut. To reduce the amount of dust created, do not cut all the way through stone and concrete materials - leave a thin piece uncut. For most such materials, this piece can be easily broken afterwards. Do not cock, jam or wedge the wheel in the cut. Always stop the engine and be sure the wheel has stopped rotating before setting down the cut-off machine. If a cut-off machine cart is used, sweep debris from the path of the wheels, as debris under one of the cart's wheels may cause flexing of the abrasive wheel. This could result in high frictional forces and thus greatly reduce the engine power available for the actual cutting work. It could also damage the abrasive wheel. STIHL recommends the use of the cart for longer cuts in a straight line. TS 480i, TS 500i 11