29. INTRODUCTIONS OF ATTACHMENTS 29.6 HANDLING THE CLAMSHELL BUCKET This bucket is used for digging and loading in side-ditches or the confined spaces. How to perform excavation This clamshell digs by pushing the boom against the ground. However, when perform bucket operation, perform digging while gradually raising the boom. If the clamshell bucket rotates, relieve the bucket cylinder pressure then set the lever to the neutral position. This can temporally stop the rotation. PRECAUTIONS WHEN USING. For safety, always avoid abrupt travelling, swing and stopping. Make the teeth of the bucket vertical in digging. Do not swing the bucket to crush the rock or to cut through soil.
Do not use the bucket for hammering or pulling out piles etc. Before leaving the machine, open the bucket and lower it to the ground. REMARKS Remove the bucket from the arm when transporting the machine. PC450-ENG 5-18