Komatsu WB93R-5, Руководство по эксплуатации и техническому обслуживанию

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REAR EQUIPMENT MECHANICAL QUICK COUPLING DEVICE
279
6.12.1 EQUIPMENT COUPLING AND
RELEASE PROCEDURE
WARNING
q
When the coupling pins are removed or installed, chips
may come off; always use gloves, goggles and helmet.
q
The change of the equipment must be carried out by two
operators, who must decide together the words and sig-
nals to be used during work.
q
Avoid using your fingers to align the holes, since the
may be injured or even cut off.
The following description illustrates by way of example the
coupling and release procedure of a standard digging bucket.
After installing the quick coupling device (1) on the backhoe
arm, proceed as indicated below.
q
Coupling procedure:
1- Position the bucket on the ground, taking care to choose a
level surface and directing the bucket so that its flat part
rests on the ground.
2 - Insert the pins (2) and (3), in this order, in the apposite
coupling holes in the bucket. Lock the pins (2) and (3) with
the relevant safety retainers (4).
Clean the pins (2), (3) and the bushings carefully before
inserting them in the bucket and, if necessary, grease
them slightly.
3 - Remove the safety pin (5) with the relevant retainer (6)
from the quick coupling (1).
4 - Move the arm near the bucket and with a simple folding
movement engage the front pin (2) with the quick coupling
(1).
5 - Slightly lift the bucket, making sure that it is perfectly cou-
pled with the pin (2).
6 - Engage the coupling pin (3) with the quick coupling (1),
using the bucket folding hydraulic movement. Once the
bucket has been coupled, make sure that it is perfectly
engaged and insert the safety pin (5) in the apposite hole
in the quick coupling (1). Fit the retainer (6) in its place.
IMPORTANT
q
The engagement of the bucket in the quick coupling
must always take place first with the pin (2) and succes-
sively with the pin (3).
CAUTION
q
Before starting work the operator must make sure that
the bucket is correctly connected to the quick coupling.
RWA38570
2
3
1
4
4
5
6
RWAB0530
2
1
RWAB0540
2
1
RWAB0550
3
1
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