B . for cracks in the links and damaged rivets - replace any damaged or worn parts of the chain and match the new parts to the shape and size of the original parts. . It is absolutely imperative to comply with the angles and dimensions specified below. If the . . - and in particular if the depth gauge is set too low - there is a risk of increased kickback of the chainsaw, with resulting . . . See “Technical Data” for the permitted chain pitches. The chain pitch (e.g. 3/8) is marked on the depth gauge side of each cutter. . Other files have the wrong shape and cut. Select file diameter according to chain pitch - see table at the end of this chapter. You must observe certain angles when resharpening the chain cutters . Filing angle . Side plate angle Chain type Angle (°) A B Rapid-Micro (RM) Rapid-Super (RS) Picco-Micro (PM/PMN) 30 30 30 85 60 85 Cutter shapes: Micro = Semi-chisel Super = Full chisel . . . . Furthermore, the angles must be the same on all cutters. If angles are uneven: Chain will run roughly, not in a straight line, wear quickly and finally break. • Avoid touching the tie straps and drive links with the file. • Rotate the file at regular intervals while filing 689BA025 KN this avoids one-sided wear. 90° 689BA018 KN • Use a piece of hardwood to remove burrs from cutting edge. • Check angles with the filing gauge. As these requirements can be met only after sufficient and constant practice: !* A file holder must be used for manual resharpening of Super chain. The correct filing angle is marked on the file holder. $ STlHL filing gauge* (see table) A universal tool for checking the filing and side plate angles, depth gauge setting and cutter length. Also cleans the guide bar groove and oil inlet hole. 90° 60° 85° 70° 80° 0° 35° 10° 30° 689BA022 KN $ . • If you use a file holder or the FG 1: Leave the chain on the bar. • Clamp the bar in a vise if necessary. Lock the chain - push hand guard forward • • To rotate the chain - pull hand guard against front handle • Sharpen chain frequently, take away as little metal as possible . If the cutters are not the same length, they will have different heights. This makes the chain run roughly and can cause it to break. Find the shortest cutter and then file all other cutters back to the same length. This can be very time consuming - it is best to have it done in the workshop on two or three strokes of the file are an electric grinder. usually enough • Always file from the inside to the outside of the cutter. • The file only sharpens on the forward stroke lift the file off the cutter on the back stroke. • Hold the file % for all chain types (at right angle to side of guide bar) and file according to the angles marked on the filing tool. * Special accessory 689BA023 KN 689BA023 KN Chain Depth gauge pitch distance “” a Inch (mm) mm (Inch) 689BA024 KN Round off depth gauges parallel to the stamped marking. 1/4 (6.35) 0.65 (0.026) 3/8-PM (9.32) 0.65 (0.018) 3/8-PMN (9.32) 0.45 (0.026) 0.325 (8.25) 0.65 (0.026) 3/8 (9.32) 0.65 (0.026) 0.404 (10.26) 0.80 (0.031) ' . The depth gauge determines the height This setting may be increased by 0.2 mm at which the cutter enters the wood and thus the thickness of the chip removed. (0.008") for cutting softwood in mild weather season - no frost. . Distance between depth gauge and ( . Clean the chain thoroughly, remove filings or grinding dust - lubricate the cutting edge = . The depth gauge setting is reduced chain by immersing it in an oil bath. when the chain is sharpened. Use filing gauge to check the setting every time you sharpen the chain and, if necessary, ) . Clean the chain with a brush and lower the depth gauge with a flat or triangular file so that it is level with the immerse it in an oil bath. filing gauge. . Chain pitch Round file O Round file File holder Filing gauge Flat file Sharpening kit* Inch (mm) mm (Inch) Part No. Part No. Part No. Part No. Part No. 1/4 (6.35) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 353 3356 5605 007 1027 3/8 PMN (9.32) 4.0 (5/32) 5605 772 4006 5605 750 4327 0000 893 4000 0814 353 3356 5605 007 1026 3/8 P (9.32) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 353 3356 5605 007 1027 0.325 (8.25) 4.8 (3/16) 5605 772 4806 5605 750 4328 1110 893 4000 0814 353 3356 5605 007 1028 3/8 (9.32) 5.2 (13/64) 5605 772 5206 5605 750 4329 1110 893 4000 0814 353 3356 5605 007 1029 0.404 (10.26) 5.5 (7/32) 5605 772 5506 5605 750 4330 1106 893 4000 0814 353 3356 5605 007 1030 * consisting of file holder with round file, flat file and filing gauge. . Please note that the following maintenance intervals apply for normal operating conditions only. If your daily working time is longer than normal or cutting conditions are difficult (very dusty work area tropical wood etc.) shorten the specified intervals accordingly. beforestarting workafter finishingwork or dailyafter...