1830°files and how to work with them- Sharpen using a special file holder with a saw chain roundfile dia. 4.0 mm. Normal round files are not appropriate forthis work. See "Accessories" for the order number.- The file should cut only when pushed forwards (arrow). Liftthe file when leading it backwards.- First sharpen the shortest cutter. The length of this cutter isthen the standerd for all other cutters of the chain.- Always guide the file as in fig. shown- The file holder makes file guidance easier. It is marked forthe correct 30° sharpening angle (keep the marks parallelwith the chain when filing, see illustration) and limits the cutdepth to the correct 4/5 of the file diameter. See "Acces-sories" for the order number.- After having sharpened the chain, the height of the depthlimiter must be checked by means of a chain gauge. See"Accessories" for the order number.- Correct even the smallest excess height with a special flatfile (1). See "Accessories" for the order number.- Round off the front of the depth limiter (2).4/5B1 2CCleaning the guide bar,lubricating the sprocket noseCAUTIon: Protective gloves must be worn.Regularly inspect the bearing surfaces of the guide bar fordamage, and clean them with a suitable tool.If the saw is used intensively it will be necessary to lubricate thereturn sprocket bearings regularly (once a week). To do this, firstthoroughly clean the mm hole at the tip of the guide bar, andthen press in a small amount of multi-purpose grease.Multi-purpose grease and grease guns are available as acces-sories.Multi-purpose grease (order no. 944 360 000)Grease gun (order no. 944 350 000)