Stihl MS 192 C-E Product Instruction Manual - Page 45

Sharpening and side plate angles File holder Proper sharpening English A 689BA021 KN B A Sharpening angle STIHL saw chains are sharpened with a 30° sharpening angle. Ripping chains, which are sharpened with a 10° sharpening angle, are exceptions. Ripping chains have an X in the designation. B Side plate angle The correct side plate angle results automatically when the specified file holder and file diameter are used. Tooth shapes Angle (°) AB Micro = semi-chisel, e. g., 30 75 63 PMC3, 26 RMC3, 36 RMC Micro = full chisel, e. g., 30 60 63 PS3, 26 RSC, 36 RSC3 Ripping chain, e. g., 63 PMX, 36 RMX 10 75 The angles must be identical for all cutters in the saw chain. Varying angles: Rough, uneven running of the saw chain, increased wear - even to the point of saw chain breakage. N Use a file holder Always use a file holder (special accessory, see table "Sharpening tools") when sharpening saw chains by hand. File holders have markings for the sharpening angle. Use only special saw chain files! Other files are unsuitable in terms of shape and type of cutting. To check the angles STIHL filing gauge (special accessory, see table "Sharpening tools") - a universal tool for checking sharpening and side plate angles, depth gauge setting, and tooth length, as well as cleaning grooves and oil inlet holes. 001BA203 KN 689BA025 KN N Select sharpening tools in accordance with chain pitch N Clamp guide bar if necessary N Block saw chain - push the hand guard forward N To advance the saw chain, pull the hand guard toward the handlebar: The chain brake is disengaged. With the Quickstop Plus chain brake system, additionally press the throttle trigger lockout N Sharpen frequently, removing little material - two or three strokes of the file are usually sufficient for simple resharpening 90° N Guide the file: horizontally (at a right angle to the side surface of the guide bar) in accordance with the specified angle - according to the 689BA018 KN 689BA043 KN MS 192 C 43