Stihl TS 500i STIHL Cutquik Instruction Manual - Page 21
Diamond cutting wheels
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Diamond cutting wheels Short names English Economic benefit is improved and premature wear can be avoided by choosing and using the correct diamond cutting wheel. The short name (see following explanation) - on the label and - on the packaging (table with recommended uses) can help to ensure the correct choice. STIHL diamond cutting wheels are suitable, depending on the version, for cutting the following materials: - Asphalt - Concrete - Stone (hard rock) - Abrasive concrete - Green concrete - Clay bricks - Clay pipes The short name is a combination of letters and numerals with up to four digits: - The letters indicate the main area of use for the cutting wheel. - The numerals indicate the performance class of the STIHL diamond cutting wheel. Letter Main area of use A Asphalt B Concrete BA Concrete, Asphalt S Stone (rock) SB* Rock, Concrete *) can be used for structural steel up to 10 mm thick and ductile iron - not suitable for continuous cutting of such materials Radial and axial run-out A correctly mounted spindle bearing on the cut-off machine is essential for a long service life and efficient operation of the diamond cutting wheel. Using a cutting wheel on a cut-off machine with defective spindle bearing can lead to axial and radial run-out. Excessive radial run-out (A) causes individual diamond segments to be overloaded and to overheat. This can in turn lead to stress cracking in the wheel core or to softening of individual segments. Axial run-out or spindle wobble (B) results in higher thermal stress and wider cuts. TS 480i, TS 500i 19