CRAWLER CRANE

摘要

PROBLEM TO BE SOLVED: To provide a crawler crane which can be transported by a trailer in a transport condition with a lower boom left mounted. SOLUTION: In this crawler crane, journaling a boom 6 for providing a work device hoisted in a revolving super structure provided turnably relating to a base carrier, a support member 11 for boom supporting the boom 6 rotated is provided to protrude in a tip end part upper surface of a main frame 5 constituting the revolving super structure.