OM 28Z3 US – Edition 2.0 * 28Z3b340.fm 3-71
Operation
Excavator work position
Proceed as follows:
☞ Place stabilizer blade A on the side you want to dig.
Bucket position when digging
☞ Move the bucket as shown in A
➥ Move the flat side of the bucket parallel to the ground.
Important!
Position B causes the bucket to penetrate into the ground. Work slows down, and
the engine and the hydraulic pump are subject to overload if this position is used
over a longer period of time!
Position C causes the bucket to be forced upward and not to be filled completely.
This slows down work, too.
☞ Dig as follows:
• Penetrate into the ground with the bucket D
• Lower the stick and at the same time align bucket until
• Reaching the required digging depth and
• The flat side of the bucket is parallel to the ground (see bucket position).
☞ Pull bucket E parallel to the ground towards the excavator. At the same time, if possi-
ble:
• Move the stick towards the excavator.
• Lower the boom.
☞ With a sufficiently full bucket E:
• Keep on moving the stick towards the excavator and at the same time.
• Curl the bucket to complete the filling operation as the stick is moved toward the
machine.
Excavating trenches
☞ Excavating trenches is more efficient
☞ y using a suitable bucket for this work and positioning the tracks parallel to the side of
the trench.
☞ In case of large trenches, first excavate the side sections and then the center section.
Fig. 101: Excavator work position
A
Fig. 102: Bucket position
A
B
C
Fig. 103: Penetrating into the ground with the bucket and
D
Fig. 104: Filling the bucket
E
Fig. 105: Excavating trenches
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