Stihl TS 500i STIHL Cutquik Instruction Manual - Page 29

Tensioning the ribbed V-belt This machine is equipped with an automatic spring-action V-belt tensioning device. 2 1 0 1 1 Prior to tensioning of the ribbed V-belt, the nuts (1) must be loosened and the arrow on the tensioning nut (2) must point to 0. N otherwise loosen the nuts (1) and the tensioning nut (2) with the combination wrench counterclockwise - approx. 1/4 turn, as far as possible = 0 1307BA029 KN English WARNING The tensioning nut is spring-loaded - hold the combination wrench securely. N Turn the tensioning nut clockwise approx. 1/8 turn - the tensioning nut will be engaged by the spring N Continue turning approx. 1/8 turn - up to the stop NOTICE Do not turn the combination wrench further by force. The V-belt is automatically tensioned by the force of the spring in this position. N Remove the combination wrench from the tensioning nut N Tighten up the nuts (1) Retensioning the V-belt The V-belt is retensioned without the aid of the tensioning nut. Fitting / replacing an abrasive wheel The engine must be switched off for fitting or replacement - move stop switch to STOP or 0. Blocking the shaft 1 370BA014 KN 1 11 N to tighten the ribbed V-belt, fit the combination wrench over the tensioning nut as illustrated 1307BA011 KN 1 1 1 N Loosen the nuts (1) - V-belt is retensioned automatically by the force of the spring N Tighten up the nuts (1) again 1307BA012 KN N Slide the locking pin (1) through the bore in the V-belt guard N Turn the shaft with the combination wrench until the locking pin (1) engages in the bore behind the guard TS 480i, TS 500i 27