Work Possible Using Hydraulic Excavator - Komatsu PW160-7H Operation & Maintenance Manual

OPERATION OPERATIONS AND CHECKS BEFORE STARTING ENGINE

WORK POSSIBLE USING HYDRAULIC EXCAVATOR

In addition to the following, it is possible to further increase the
range of applications by using various attachments.
BACKHOE WORK
When condition of the machine is as shown in the diagram at
right, each cylinders maximum pushing excavation force is
obtained when the bucket cylinder and link, arm cylinder and arm
are at 90°.
90 degrees
When excavating, use this angle effectively to optimize your work
efficiency.
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.
SHOVEL WORK
A shovel is suitable for excavating at a position higher than the
machine. Shovel work is performed by attaching the bucket in the
reverse direction.
DITCHING WORK
Ditching work can be performed efficiently by attaching a bucket
to match the width of the ditch and then setting the wheels parallel
to the line of the ditch to be excavated.
To excavate a wide ditch, first dig out both sides and then finally
remove the center portion.
PW160-7H VEAM390100 185