Komatsu Utility Avance WB91R-2, Руководство по эксплуатации и техническому обслуживанию

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ARRANGEMENT FOR THE INSTALLATION OF THE CLAMSHELL BUCKET
6.9 ARRANGEMENT FOR THE INSTALLATION OF THE CLAM-
SHELL BUCKET
6.9.1 DESCRIPTION AND CONTROL
6.9.1.1 VERSION WITH STANDARD CONTROLS
DANGER
•
The machine equipped with the revolving clamshell bucket cannot travel on roads.
•
The installation of the clamshell bucket must be carried out at the work site; if the machine must travel
on roads, remove the bucket.
•
The bucket can swing on the arm coupling; during use, take in consideration the increase in size due to
the swinging.
The machine can be configured in such a way as to allow the application of a revolving clamshell bucket to the
backhoe, instead of the standard bucket.
For the swing of the clamshell bucket, this configuration includes the installation of an independent hydraulic cir-
cuit controlled by an additional distributor, while for its opening and folding it is possible to use the circuit used for
the opening and folding of the standard bucket, excluding the control cylinder (see “6.9.2 INSTALLING THE
CLAMSHELL BUCKET”).
The additional distributor that manages the swing of the clamshell bucket is controlled by means of a pedal (1)
positioned on the left side of the backhoe control lever unit.
The other controls of the backhoe movements (boom, arm and boom swing) remain unchanged (see “3.3.6.1
pos. 16-17 BACKHOE CONTROL LEVERS”).
The rotation of the bucket is controlled as follows:
1 - when the pedal (1) is pressed with the toes, the bucket swings clockwise;
2 - when the pedal (1) is pressed with the heel, the bucket swings anticlockwise.
This configuration includes also the fixed installation of the delivery and discharge pipe that convey/discharge the
oil necessary for the bucket swing and reach the proximity of the bucket connection.
RWA35110
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