Use the Stihl iCademy app (iOS/Android). This app contains exploded-view diagrams and interactive manuals for every current model, including the FSE 81.
Based on the official product data from STIHL and authorized distributors like Gayways UK : : 1000 W (1.0 kW). Weight : 4.7 kg (10.4 lbs). Cutting Diameter : 350 mm (approx. 13.8 inches). Standard Cutting Head : AutoCut C 5-2 or C 6-2 (Tap 'N' Go). stihl fse 81 manual