Adams Machinery crews disassembled the giant crane in Baltimore, Maryland. The beginning task was to remove 675,000 lbs of counterweight, followed by the removal of the boom and A-frame. The rotating upper structure was lifted and lowered to the ground by a tandem crane arrangement. The carbody (rail ring circle, girth gear and supporting structure) were also lifted and lowered by the tandem crane method. The gantry and travel mechanism were dismantled and prepared for transport. Many of the component parts were so large they could not be transported using conventional transport trucks. These large components were cut apart and shipped by Adams Machinery’s multi-axle heavy haul transports. In order to assure proper alignment during reassembly, a system of tabs and control links were installed during disassembly.
The disassembled components were sandblasted, painted and prepared for shipment. A total of sixty two truckloads were shipped from Baltimore, Maryland to Portland, Oregon; a total combined weight of two million one hundred thirty four thousand pounds.
Reassembly of the massive crane in Portland, Oregon required the welding together of the oversize components returning them to their original configuration and tolerance. All welding was performed in compliance of American Welding Society and ANSI standards.
All of the out-dated controls were replaced with new state of the art controls; the result was a safe and smooth operating crane. In addition to operator controls, all electrical equipment was replaced, with new transformers, cabinets and variable frequency drives.
The crane was then tested to prevailing standards by AmClyde Engineering, the original manufacturer and was found to exceed the original specifications and tolerances.
Meticulous and safe removal of components, precision cuts and the use of structural markers meant the the structure and mechanical assemblies remain sound and as the customer found them or better.
Overland trucking of the various components using our own men and equipment means that the customer is assured of the safe handling of their machine and its timely arrival with no middle man of loss of control.
An Integrated Load Monitoring System with programmable speed, angle and capacity, coupled with Mechanical stops, fail-safes and lockouts means that this machine meets and exceeds safety standards.
Welding together of the oversize components returning them to their original configuration and tolerance. All welding was performed in compliance of American Welding Society and ANSI standards.