Stihl 009 Instruction Manual - Page 21

001BA019 KN 001BA042 LÄ When making the felling notch, use the gunning sight on the shroud and housing to check the required direction of fall: • Position the saw so that the gunning sight points exactly in the direction you want the tree to fall. felling notch - determines the direction of the fall For a conventional cut: • Properly place felling notch perpendicular to the Iine of fall, • close to the ground Cut down at app. 45-degree angle to a depth of about 1/5 to 1/4 of the trunk diameter Make second cut horizontal •• Remove resulting 45-degree piece = felling notch - determines the direction of the fall For an open-face cut: • Properly place felling notch perpendicular to the Iine of falI, • close to the ground Cut down at app. 50-degree angle to a depth of app.1/5 to 1/4 of the • trunk diameter Make second cut from below at • app. 40 degree angle Remove resulting 90-degree piece