2-75
PC130/150LGP-6K ENG
12.OPERATION
12.15 WORK POSSIBLE USING HYDRAULIC
EXCAVATOR
In addition to the following, it is possible to further increase the range
of applications by using various attachments.
12.15.1 BACKHOE WORK
When condition of the machine is as shown in the diagram at right,
each cylinder's maximum pushing excavation force is obtained when the
bucket cylinder and link, arm cylinder and arm are at 90°.
The range for excavating with the arm is from a 45° angle away from
the machine to a 30° toward the machine.
There may be some differences depending on the excavation depth,
but try to use within the above range rather than going all the way to the
extreme end of the cylinder stroke.
12.15.2 SHOVEL WORK
A shovel is suitable for excavating at a positon higher than the ma-
chine. Shovel work is performed by attaching the bucket in the reverse
direction.
12.15.3 DITCHING WORK
Ditching work can be performed efficiently by attaching a bucket to
match the width of the ditch and then setting the tracks parallel to the line
of the ditch to be excavated.
To excavate a wide ditch, first dig out both sides and then finally re-
move the center portion.
12.15.4 LOADING WORK
In places where the swing angle is small, work efficiency can be en-
hanced by locating the dump truck in a place easily visible to the operator.
Loading is easier and capacity greater if you begin from the front of
the dump truck body than if loading is done from the side.
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