Stihl MSE 140 C-BQ Product Instruction Manual - Page 20

English / USA B B 001BA043 KN 001BA044 KN Open-face technique A = felling notch - determines the direction of the fall For an open-face cut: : Properly place felling notch perpendicular to the line of fall, 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 Making sapwood cuts : For medium sized or larger trees make cuts at both sides of the trunk, : at same height as subsequent felling cut : Cut to no more than width of guide bar This is especially important in softwood in summer - it helps prevent sapwood splintering when the tree falls. B = Felling cut Conventional and open-face technique: : Begin 1 to 2 inches (2,5 to 5 cm) higher than centre of felling notch : Cut horizontally towards the felling notch : Leave approx.1/10 of diameter uncut. This is the hinge : Do not cut through the hinge - you could lose control of the direction of the fall Drive wedges into the felling cut where necessary to control the fall. !Warning! If the tip of the bar contacts a wedge, it may cause kickback. Wedges should be of wood or plastic - never steel, which can damage the chain. MSE 140 C, MSE 160 C, MSE 180 C, MSE 200 C 19