waratah HTH622B SIII, Руководство оператора

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General
1. Smaller trees requiring only a single cut may need
the harvester head unlatching to be over-ridden, with
the tilt-up button pushed while cutting. This is
because the tree is forced faster than the saw chain
can cut. Once the tree is cut, the harvester head
down button can be activated to fell the tree.
2. Trees with a heavy forward lean can be felled either
by uprooting, or by placing multiple front cuts, to
create a larger area to compress while back cutting.
3. Larger trees should be released once the tree is
falling. This will reduce the occurrence of any
harvester head damage.
4. Tops of hills and uneven ground can also cause trees
to swing up, damaging the harvester head or causing
the carrier to lift.
5. Releasing trees as they are falling into another
standing tree can sometimes allow the tree to roll off.
6. If the fallen tree is hung in another, be careful when
pulling it down. Watch to ensure the holding tree is
not being pulled in the same direction. If so, pushing
the tree can uproot the tree away from the carrier.
AM24480,000006E-19-15NOV21
Using the Main Saw Unit
Prior to using the saw unit keep in mind the following:
1. If possible, view the saw bar.
2. The harvester head will fall over when the saw chain
is activated.
3. Protect boom hydraulics and the cab.
4. Position the tree for delimbing.
5. While cutting, push in the required felling direction,
remembering to avoid upward pressure.
6. As the cutting unit completes the cut, the saw chain
will increase in speed, and bark chips may be
visible.
7. Once the cut is completed, stop activating the saw
chain button; the saw bar will automatically return.
8. When felling, it is possible to jam the saw bar. If so,
stop the activation of the saw chain and slowly lift
the harvester head. The weight of the tree has
pressurized the oil in the lift rams of the carrier; the
lifting distance should not be great.
9. Check that the saw bar has returned by the saw
home sensor before moving the tree too far.
10. Ensure the log is clamped before the saw chain is
activated. A loose log may move after the saw chain
begins the cut, which may derail the saw chain or
stop the saw chain from cutting.
11. A side tear along the tree may stop the saw bar from
returning if it is not cut on the downward pass. The
saw chain cut should be made past this tear.
12. Logs should be supported when cutting, as this will
avoid log split.
13. A small amount of upward lift may be required as
the saw chain completes the cut. This will keep the
cut open and reduce the likelihood of the saw
stalling.
14. Ensure the end of the saw bar does not cut into the
ground when completing a cut. The saw chain may
also cut into another log, damaging the value of that
log, or, if the harvester head is moving, damaging
the saw bar and chain.
15. When the saw chain is jammed out or the diameter
detect is activated, the feed motors are isolated. If
the stem needs to be moved in this position, you
can do so by activating key F1 along with saw and
feed reverse. Care should be taken when
unjamming the saw bar as it is easy to damage.
T7M7G6M,00004B1-19-16NOV21
Using the Top Saw Unit
1. The top saw is designed for cutting small diameter
tops off trees. The tip of the saw bar can be pinched if
larger diameters are attempted.
2. The top saw chain can be derailed by branches or if
the end of the log is loaded. It is advisable that the
top saw bar remains visible when cutting.
T7M7G6M,00004B2-19-15NOV21
Operation: Cutting
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