Komatsu ecot3 Operation And Maintenance Manual page 393

RECOMMENDED ATTACHMENT OPERATIONS RECOMMENDED ATTACHMENT OPERATIONS
Operations using the swing force
Moving the chisel while carrying out impacting operations
Holding the chisel horizontal or pointed up when carrying out
impacting operations
Twisting the chisel when it has penetrated the rock
Pecking operations
6 - 36
ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS