Patent ID: 8622228
Filing Date: 2014-01-07
Classification: B66C

Abstract:
1. A method of disassembling and transporting a mobile lift crane, the lift crane comprising, prior to disassembly, i) a rotating bed, ii) a boom pivotally mounted on the rotating bed, iii) a boom hoist drum mounted in a frame, the frame being connected to the rotating bed, iv) a lower equalizer connected to the rotating bed, v) an upper equalizer, vi) fixed length pendants connected between the upper equalizer and the boom top, vii) a boom hoist line wound on the boom hoist drum and reeved through the lower equalizer and the upper equalizer such that rotation of the boom hoist drum changes the amount of boom hoist line between the lower equalizer and the upper equalizer, thereby changing the angle between the rotating bed and the boom, and viii) a mast mounted at a first end to the rotating bed and having a second opposite end, with the lower equalizer being connected to the rotating bed by being connected to the mast adjacent the second end of the mast; the method comprising: a) disconnecting the fixed length pendants from between the boom top and the upper equalizer; b) disconnecting the lower equalizer from the rotating bed by disconnecting the lower equalizer from the mast; c) disconnecting the boom hoist drum frame from the rotating bed; d) leaving the boom hoist line reeved between the lower equalizer and the upper equalizer and wound on the boom hoist drum; e) connecting the lower equalizer to the boom hoist drum frame; and f) transporting the boom hoist drum, boom hoist drum frame, lower equalizer, upper equalizer and boom hoist line together on a single transport trailer between one job site and another.