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Limbbuck guide T i m' s t i p s Limbing and bucking Tim Ard GOL instructor A s a tree falls it will often brush other trees and leave broken live limbs or dead limbs hanging in surrounding trees Sometimes falling trees will shoot o ? the stump and roll si

T i m' s t i p s Limbing and bucking Tim Ard GOL instructor A s a tree falls it will often brush other trees and leave broken live limbs or dead limbs hanging in surrounding trees Sometimes falling trees will shoot o ? the stump and roll sideways or ahead creating pressures on tree limbs Loggers should never limb a tree immediately after felling It is often a good idea to drop several trees and then refuel the saw prior to limbing This will provide ample time for overhead hazards to come down Prior to limbing loggers should evaluate ?ve potential hazards as follows Overhead hazards Spring poles Butt movement forward creates back pressure on limbs Butt twist creates sideways pressure on limbs Butt o ? the ground creates tension on the tree stem Limb Lock Back and sideways pressure on limbs can be handled using a limb lock If limbs have back pressure on them they can severely injure a logger when they are severed from the tree A good precaution to use in these circumstances is a limb lock The purpose of a limb lock is to prevent a limb under pressure from kicking back and striking the leg or pinching the saw The ?rst cut is made on either the top side or bottom side of the limb top and bottom refer to top and bottom of the limb as if the tree were standing up It is preferable to make the ?rst cut on the side with compression pressure and the second cut on the side with stress CThe cut on the top of the limb is made closer to the trunk of the tree and the cut on the bottom is made further out on the limb It is important that the two cuts by-pass so that all ?ber is severed This will create a step in the limb which will prevent the limb from kicking back and hitting the logger This is similar to the way in which a raised back cut prevents the butt of a tree from kicking back over the stump Limb Lock Top Lock Twisting of trees and butts o ? the ground create pressure on the stem that can be handled with a top lock If the stem of the tree is under stress a top lock can be used to prevent the top from kicking up and striking the logger The ?rst cut of a top lock is made on the side of the tree that is under compression in the top or bottom of the stem The second cut is made on the side of the tree which is under tension This prevents pinching the saw The top cut is always made closer to the top of the tree and the bottom cut is made closer to the bottom of the tree the reverse order of the limb lock Both cuts must bypass so that all ?ber is severed Keep at least inches between cuts