Configuration For The Use Of The Clamshell Bucket - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

CONFIGURATION FOR THE USE OF THE CLAMSHELL BUCKET

6.9 CONFIGURATION FOR THE USE OF THE CLAMSHELL
BUCKET
6.9.1 DESCRIPTION AND CONTROL
Machines equipped with the revolving clamshell bucket cannot travel on roads.
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The installation of the clamshell bucket must be carried out at the worksite; if the machine must travel
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on roads, remove the bucket.
The bucket can swing on the arm coupling; during use, take in consideration the increase in size due to
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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 circuit
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").
6.9.1.1 CONTROL (version with mechanically-controlled backhoe)
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 for the movements of the backhoe (boom, arm and boom swing) remain unchanged (see
"3.3.6.1 pos. 19/20 - BACKHOE CONTROL LEVERS (version with mechanical controls)").
The swing movements are the following:
1 - Clockwise swing, obtained by pressing the pedal (1) with the toes.
2 - Counterclockwise swing, obtained by pressing the pedal (1) with the heel.
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.
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WARNING
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RKA14540