Stihl MSA 200 C-BQ Instruction Manual - Page 43

English Checking and Replacing the Chain Sprocket N Remove battery N Remove chain sprocket cover, saw chain and guide bar N Release chain brake - set hand guard to, Fit new chain sprocket - after use of two saw chains or earlier - if the wear marks (arrows) are deeper than 0.02 in (0.5 mm) - otherwise the service life of the saw chain is reduced - use check gauge (special accessory) to tes Using two saw chains in alternation helps preserve the chain sprocket. STIHL recommends use of original STIHL chain sprockets in order to ensure optimal functioning of the chain brake. 001BA120 KN 3999BA021 KN 3 1 2 N Use a screwdriver to remove the Eclip (1) N Remove the washer (2) N Remove chain sprocket (3) 3999BA022 KN 2 1 3 N Fit new chain sprocket - make certain that the guide pins of the worm (arrows) line up with the openings provided on the chain sprocket and push on the chain sprocket as far as it will go N Install washer (2) and E-clip (1) Maintaining and Sharpening the Saw Chain Sawing effortlessly with a properly sharpened saw chain A properly sharpened saw chain cuts through wood effortlessly even with very little pushing. Never use a dull or damaged saw chain - this leads to increased physical strain, increased vibration load, unsatisfactory cutting results and increased wear. N Clean the saw chain N Check the saw chain for cracks and damaged rivets N Replace damaged or worn chain components and adapt these parts to the remaining parts in terms of shape and level of wear - rework accordingly WARNING Compliance with the angles and dimensions listed below is absolutely necessary. An improperly sharpened saw chain - especially depth gauges that are too low - can lead to increased kickback tendency of the chain saw - risk of injury! MSA 160 C, MSA 200 C 41