Chain Saw Safety Manual
English
9
Sapwood cuts
Sapwood cuts in long-fibered softwood
help prevent sapwood splintering when
the tree falls. Make cuts at both sides of
the trunk at same height as bottom of
felling notch to a depth of about 1/10 of
trunk diameter. On large diameter trees,
cut to no more than width of guide bar.
Do not make sapwood cuts if wood is
diseased.
Felling
Shout a warning before starting the
felling cut.
N Make the felling cut (D) slightly
higher than bottom of the felling
notch.
– Cut horizontally.
– Leave approx. 1/10 of the tree
diameter uncut between the felling
cut and the felling notch. This is the
hinge.
Drive wedges into the felling cut in good
time. Use only wooden, aluminum or
plastic wedges. Never steel, which can
damage the chain and cause kickback.
The hinge (E) helps control the falling
tree.
– Do not cut through the hinge – you
could lose control of the direction of
fall – this could result in an accident.
– Leave a broader hinge on rotten
trees.
Shout a second warning immediately
before the tree falls.
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