![waratah HTH624C Operator'S Manual Download Page 50](http://html1.mh-extra.com/html/waratah/hth624c/hth624c_operators-manual_3356215050.webp)
Operation—Special Techniques
RR71361,00000FC -19-01JUL08-1/1
RR71361,00000FD -19-17JUN08-1/1
Quarter Cutting
This method is used on various occasions to gain better
control when felling. Use a saw cut placed at the base of
the tree in the direction of fall approximately a quarter of
the diameter into the tree. The harvester head is then
moved to the back of the tree ready for falling.
CAUTION: Prevent possible injury while felling.
Always work on one tree at the time and complete
tree cut. Failure to follow the safety precautions
can lead to risk of serious injury.
Ensure the back cut (2) is placed higher in the tree than
the quarter cut (1), approximately quarter of the tree
diameter. When placing these cuts ensure both cuts are
parallel to ensure a hinge affect is achieved, otherwise
loss of control will result.
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 any other situation the operator requires more control
in the felling procedure, to prevent damaging the tree or
carrier.
2
1
TX1019722
—UN—09JAN08
1— Front or Compression Cut
2— Back or Release Cut
Falling Multi-Leaders
Crutched trees can be cut either at a point where both
separate, or if one side is of small diameter it can be lifted
until the crutch splits.
Crutched trees at the base may need to be fallen
separately if the split line is close to the ground.
Carefully assess the situation and identify whether the
tree is sound at the base, in which case the possibility of
falling complete could be a an option.
If signs of rot (4) exist, it identifies the need to remove
each leader individually. This is done in a conventional
manner, except at a greater height.
CAUTION: Prevent possible injury while falling
multi-leader tree. Caution must be exercised
to ensure other leaders do not break away
unexpectedly. Failure to follow the safety
precautions can lead to risk of serious injury.
4— Sign of Tree Rot
4
TX1019723
—UN—29MAR07
2-6-2
053122
PN=50
Summary of Contents for HTH624C
Page 4: ...Introduction 053122 PN 4 ...
Page 86: ...Index Index 3 053122 PN 86 ...
Page 87: ...Index Index 4 053122 PN 87 ...