Stihl 066 Instruction Manual - Page 27
Mounting the Bar and Chain
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Mounting the Bar and Chain 3 6 44 57 001BA091 KN 143BA004 143BA034 KN 1 2 You can run chains of different pitches on this chainsaw - depending on the chain sprocket (see "Specifications") The chain pitch must match the guide bar. In addition, the drive link gauge must match the guide bar groove width. • Turn tensioning screw (1) counterclockwise until the tensioner slide (2) butts against left end of housing slot. 145BA001 K Disengage the chain brake: Pull hand guard (3) toward the front handle. Wear work gloves to protect hands •• Fit the chain - start at the bar nose. 143BA003 KN Fit the guide bar over the studs (4) cutting edges on top of bar must point to right and engage the peg of the tensioner slide in locating hole (5) place the chain over sprocket (6) at the same time Now turn tensioning screw (7) clockwise until there is very little chain sag on the underside of the bar - and the drive link tangs are located in the bar groove. • Refit the sprocket cover and screw on the nuts only finger-tight. • Tensioning the chain see section "Tensioning the Saw Chain". 066 25