Mountain’s crew was on-site to handle the rotor and main bearing for a wind turbine tower in North Dakota. The first phase included lowering the 67,000-lb. rotor and hub assembly from the 329’ tower to the ground and laying it flat on supports, then lowering the main 137,000-lb. main bearing onto a six-line Goldhofer THP trailer which was pulled to the owner’s on-site refurbishing facility by an Oshkosh M1070 truck tractor. The second phase involved lifting the replacement bearing and then lifting and reinstalling the rotor, whose blades each measured 190’long. During the project, we completed the same process on two towers. For the lifts, we utilized our Liebherr LR 1600/2 with 325’ of boom, a 39’ wind jib offset 16°, and six parts of load line to handle the rotor and hub at a 60’ radius, and the main bearing at 70’. Mountain Crane needed 23 truckloads of components to move the LR 1600/2 from its Salt Lake City yard to the North Dakota wind farm. Crane assembly took only two days.
Mountain Crane offers one of the largest fleet of cranes in the Mountain West! Our diverse fleet has the right crane for your job!
