Komatsu PC1250-11, Original Instructions Manual

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under the raised track. Then raise the bucket and drive the machine out.
Tracks on both sides stuck
When the tracks on both sides get stuck and slip, lay logs,
wooden blocks, etc. according to the preceding procedure.
Stick the bucket into the front ground, pull in the arm as in dig-
ging operation, and set the travel lever to FORWARD position
to drive the machine out.
RECOMMENDED APPLICATIONS
In addition to the following, it is possible to further increase the range of applications by using various attach-
ments.
DIGGING WORK
BACKHOE WORK
It is suitable for excavating areas that are lower than the machine.
When the condition of the machine is as shown in the figure
(angle between bucket cylinder and link, and between arm cyl-
inder and arm is 90 °), the maximum excavation force is ob-
tained from the pushing force of each cylinder.
When excavating, you can optimize your working efficiency by
using this angle effectively.
The range for excavating with the arm is from a 45 ° angle
away from the machine to a 30 ° angle towards the machine.
There may be some differences depending on the excavation
depth, but try to stay within the above range rather than operat-
ing the cylinder to the end of its stroke.
DITCHING WORK
Ditching work can be performed efficiently by attaching a buck-
et which matches the digging operation and then setting the
tracks parallel to the line of the ditch to be excavated.
To excavate a wide ditch, first dig both sides and then finally re-
move the centre portion.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-189