Handling Clamshell Bucket - Komatsu PC210LC-6K Operation & Maintenance Manual

29.7 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.
29. INTRODUCTIONS OF ATTACHMENTS
5-21 5-23