Mich. Admin. Code R. 408.15156 - Notch or undercut; back cut; hinge wood
Rule 5156.
(1)
A notch or undercut shall be large enough, about 1/3 of the diameter, to safely
guide the tree and reduce the possibility of the tree splitting. Side cuts
shall also be used where appropriate.
(2) A back cut shall be made in each tree
being felled. A back cut shall leave sufficient hinge wood to guide the tree's
fall in the desired direction and to hold the tree to the stump during most of
its fall. A back cut shall be about 2 inches above the undercut and as level as
possible; however the back cut may be at or below the horizontal cut in
tree-pulling operations.
(3) Before
starting a back cut, a faller shall determine that the impact area is clear of
other employees.
(4) The saw chain
shall be stopped before the feller starts to retreat.
(5) Where a tree is likely to slide or roll,
a feller shall cut from the uphill side and keep uphill from previously felled
trees.
Notes
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