First, the company off-loaded the 44ft (13m) long, 11ft (3m) wide, and 14ft (4m) high, 8 MW Wartsila generator from a rail car on to a nine-axle Goldhofer trailer, and then hauled it a mile to the Indian Power Plant near Rensselaer, Ohio.
The existing opening in the building’s brick facade, which measured a little more than 10 feet wide, had to be enlarged before the generator could pass through. PSC slung the load on a 500 US ton (453t) J&R Lift-N-Lock gantry system with a spreader bar and wire rope slings. Then they turned it 90 degrees with a 400 US ton (363t) J&R Power Rotator to complete the job, set it down on an hydraulic slide rail system, and slid into the building. Once it cleared the building, the generator was jacked up to remove the slide rail system and to install vibration mounts.
According to the company, the choice of gantry, rotator and sliders simplified the rigging tasks and lessened the impact of the snowy and icy conditions prevalent during the project. The project required 578 man-hours, including approximately 80 hours of project management and 20 hours of engineer-designed lift and rigging planning.
