Stihl MSA 160 C-BQ Product Instruction Manual - Page 27

Tensioning the Saw Chain (quick chain tensioner) English Checking Chain Tension 3999BA005 KN 3999BA008 KN 1 N Fit chain sprocket cover, sliding the guide lugs into the engine housing openings 4 5 When fitting the chain sprocket cover, the teeth of the adjusting wheel and the tensioning gear must mesh; if necessary, N turn the adjusting wheel (4) a little until the chain sprocket cover can be slid completely against the engine housing N Swing grip (5) into position (until it engages) N Fit wing nut and tighten lightly N Go to chapter "Tensioning the saw chain" 3999BA006 KN 2 For retensioning during operation: N Remove the battery from the machine N Fold out the wings of the wing nut and loosen the wing nut N Turn the adjusting wheel (1) to the right as far as possible N Tighten the wing nut (2) by hand N Fold in the wings of the wing nut N Next step: Continue with "Check chain tension" A new saw chain must be retensioned more frequently than one that has been in use already for an extended period! N Check chain tension frequently - see "Operating Instructions" 3999BA007 KN N Remove the battery from the machine N Put on protective gloves N Pull hand guard towards the front handle until it engages audibly and the hand guard is in the position , - chain brake is released N The saw chain must lie against the bottom of the bar and it must be possible to pull it across the guide bar by hand N if necessary, retension saw chain A new saw chain must be retensioned more frequently than one that has been in use already for an extended period. N Check chain tension frequently, see "Operating Instructions" MSA 160 C 25