13. Operating Instructions
2-51
You can greatly widen the range of work described here by
using optional attachments.
13-14-1. Backhoe operation
Backhoe operation is suitable for digging the ground below
the machine.
Suppose that the machine is operating as illustrated in the
figure at the right : a maximum digging force of each cylin-
der can be obtained when the angle between the bucket
cylinder and the bucket arm as well as between the arm
cylinder and the arm is maintained at 90 degrees.
When digging, make good use of this angle to increase the
operating efficiency.
To excavate the ground efficiently by manipulating the arm,
the arm needs to be operated within a range of angles be-
tween 45 degrees forward and 30 degrees backwards, as
illustrated in the figure at the right. Though the range differs
according to the depth of the work, do not move the imple-
ment to the cylinder stroke end.
13-14-2. Shoveling
Shoveling is suitable for excavating ground that is higher
than the machine bottom.
Install the bucket in the reverse position before operating.
For the procedure for installing the bucket in the reverse
position, Refer to Section "13-15. Reversing the bucket".
13-14-3. Ditching
To increase work efficiency, install a suitable bucket for
ditching and position the tracks in parallel with the ditch to
be made.
To make a wide ditch, first dig the two sides, and then dig
the center.
13-14-4. Loading
To increase work efficiency, locate the dump truck at a po-
sition where the swing angle of the machine will be mini-
mized and the operator can clearly view the dump truck.
Load earth from the rear of the dump truck, because it can
be loaded more easily and in larger amounts than from the
side..
13-14. Operations using the bucket
020355-00E
90 degrees
020356-00E
45 degrees 30 degrees
020357-00X
020358-00X
Courtesy of Machine.Market
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