waratah HTH622B SIII, Operator'S Manual

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diameter. When placing these cuts, ensure they are
parallel, creating a hinge effect, which will prevent loss
of control.
In some cases, several quarter cuts will prevent the tree
snapping off too soon. This method is used on large butt
flares, heavy leaners, badly swept butts, multi leaders,
and in any other situation where the operator requires
more control during felling.
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Falling Multi-leaders
4
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4—Sign of tree rot
‘Crutched’ trees can be cut either at a point where they
separate, or, if one side is of small diameter, it can be
lifted until the crutch splits.
Base-crutched trees may need to felled separately if the
split line is close to the ground.
Assess the situation carefully and identify whether the
tree is sound at the base; if so, complete felling may be
an option.
If signs of rot (4) exist, each leader requires individual
removal. This is done in a conventional manner, except
at a greater height.
CAUTION: Prevent possible injury while felling
multi-leader trees. Caution must be exercised to
ensure other leaders do not break away
unexpectedly. Failure to follow the safety
precautions may lead to serious injury.
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Felling on Hillsides
5
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5—Harvester head positioned correctly
Felling trees on hillsides may mean the cutting unit is
exposed to dirt and duff on the uphill side of trees.
When felling on hilly terrain, ensure the harvester head
is positioned correctly (5), ensuring the saw bar tip does
not foul the ground on the high side of the tree.
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Operation: Special Techniques
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