Folding jib strut

摘要

A method of assembling a mobile lift crane (10), the method including:
a) pivotally connecting the first strut (27) to the end of the boom (22); b) pivotally connecting a first section of the second strut (29) near the top of the boom (22); c) connecting the rigging winch line (110) to the top of the first section; d) pivotally attaching a second section of the second strut (29) to the first section such that the second section lies folded onto the first section, forming a folded second strut; and
e) lifting the second section while retracting the rigging winch line (111) to thereby bring the first and second sections into alignment with each other.