Stihl TS 500i Instruction Manual - Page 25

002BA557 AM 002BA528 AM 002BA558 AM N Curves must be cut in several straight passes, taking care to ensure that the cutting wheel does not become wedged. Do not attempt to correct the position or direction of a cut by tilting or twisting the machine or cutting wheel. If corrections are necessary, always lift the machine and reposition the cutting wheel, taking care to ensure that it is not wedged, tilted, twisted or side loaded. Cutting Pipes or Other Round, Hollow Bodies A The procedure is dependent on the outer diameter of the object being cut, the maximum possible cutting depth of the abrasive cutting wheel (A), and whether the pipe or other body can be rolled during the cutting process. The maximum cutting depth for abrasive cutting wheels with a 14" diameter is 4.9 in. (125 mm). For cutting wheels with a 12" diameter, it is 3.9 in. (100 mm). N Secure and support pipes and other round, hollow bodies against sagging, slipping, dropping, moving, rolling or vibrating. N Determine the sequence of the cuts. N Determine the weight, tension and the likely direction of fall of the part to be severed. N Determine and mark the cutting line; avoid rebar and other metal reinforcement to the extent possible, especially in the direction of the severing cut. N Determine and mark the direction of the cut. N Cut a shallow guide groove along the line marked. N Make cuts progressively deeper along the guide groove. Observe the recommended cutting depth for each pass. If corrections are necessary, always lift the machine and reposition the cutting wheel, taking care to ensure that it is not wedged, tilted, twisted or side loaded. Attempting to change the position or direction of a cut while the wheel is in the cut can bind the English wheel. This can lead to kickback, other reactive forces or a shattered composite cutting wheel, which could result in severe or fatal personal injury. N If necessary, leave small sections that hold the part that is to be separated in position. Break these sections manually with a hammer or other appropriate tool after making the last cut. If the outer diameter of the pipe or other round, hollow body is smaller than the maximum cutting depth of the wheel: N Make one cut from the top to the bottom of the pipe. If the outer diameter of the pipe or other round, hollow body is greater than the maximum cutting depth of the wheel: Plan first, then cut. The sequence shown in this manual is illustrative and not meant to substitute for the judgment of the experienced workmen with actual knowledge of on-site conditions. However, the last cut must always be made in such a way that the cutting wheel cannot become pinched, bound or clamped and so that the operator, coworkers and bystanders are not at risk of being injured by a falling part that has been cut off or out, by cutting debris or sparks. Generally, this should be in the TS 480i, TS 500i 23