MAIN BEARING AND MAIN SHAFT
For a safe, swift and efficient exchange of your rotor, main bearing or main shaft the RotorHook™ up-tower crane would be most suitable. First, the rotor & blades are lowered using the 80mT RotorHook™ , and positioned on a rotor stand for easy replacement of the main bearing down tower.
In case the main shaft needs to be exchanged the previous procedure applies, after which the main shaft will be exchanged using the RotorHook™.
Unlike other up-tower lifting systems the KenzFigee up-tower cranes have no winches on the ground, allowing the nacelle to freely yaw at all times taking advantage of the best wind direction. Furthermore, it also avoids the need to place a winch system beside the tower, eliminating damages to landowner’s crop.