Advanced Crane Technologies supplied new bearings, gears and gear guards to replace failed and missing gearing for the crane which was “down” during an outage. ACT mobilized and removed the drive trucks to our machine shop for re-building. ACT supplied new gears, pinions, gear guards, and bearings. Upon inspection it was noted that the wheel bores and wheel diameters were not correct. ACT corrected these deficiencies and returned the truck to service in the original schedule to support the rotor contractor working in the powerhouse. As part of this repair contract ACT also corrected issues with the end trucks interfering with the bridge structure during equalization, and repaired, corrected, and re-calibrated the load cell system on the crane including providing 180 tons of test weights.