Abstract: The present disclosure is directed to a working platform mounted within a nacelle of the wind turbine during a repair procedure. More specifically, the working platform may be mounted to a bedplate within the nacelle in an area where one or more drivetrain component(s) would normally be during operation of the wind turbine, but have been removed due to repair or replacement thereof.

Abstract: The present disclosure is directed to a clamping apparatus for securing a main bearing of a wind turbine. The clamping apparatus includes a clamp member configured for securement to a seal ring arranged with the main bearing, at least one clamping fastener configured through the clamp member, and at least one jacking fastener configured through the clamp member. Thus, the clamping fastener is configured to tighten the clamp member around the seal ring, whereas the jacking fastener is configured to push against the main bearing when tightened so as to maintain the main bearing in place during and installation and/or repair procedure.

Abstract: A method for replacing an existing generator frame that supports a generator of a wind turbine includes removing the generator from atop the existing generator frame. The method also includes dismounting a control cabinet of the wind turbine from the existing generator frame. More specifically, the control cabinet is electrically connected to one or more wind turbine components via a plurality of cables. The method further includes relocating and securing the control cabinet to an uptower location within a nacelle of the wind turbine with the plurality of cables remaining electrically connected. As such, the method includes removing the existing generator frame from within the nacelle. Moreover, the method includes installing a new generator frame in place of the removed existing generator frame. Thus, the method also includes remounting the control cabinet to the new generator frame.

Abstract: An apparatus and method for removing or installing a bearing unit at the downwind end of the bedplate in wind turbine uses a frame erected at the downwind end of the bedplate. The frame has cradle members located such that the bearing unit can be slid out of the bedplate and supported on the cradle members, or supported on the cradle members and pushed into the bedplate.

Abstract: A method and system for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate form an extension onto a downwind end of the main shaft with one or more support elements to support the mains shaft on a bearing unit as it is pulled or pushed into the bedplate.

Abstract: A method and system are provided for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate. The method and system use rigging and specialized tooling and procedures to perform the method in the field with the machine head remaining atop the tower or removed from the tower.

Abstract: A maintenance tool and method for detaching mechanically-connected components of a drive train in a wind turbine is disclosed. The method involves positioning the maintenance tool below a hoist and hoisting only the lift assembly portion of the maintenance tool into a nacelle of a wind turbine. Connecting the lift assembly portion to a power source in the nacelle and extending at least two induction cables from an induction generator disposed on the lift assembly portion to wrap at least a portion of a component of the mechanically-connected components. Then operating the induction generator to pass alternating current through the induction cables and inductively heat the wrapped component such that thermal expansion creates a clearance between the mechanically-connected components thereby assisting in separating the mechanically-connected components.

Abstract: A method for replacing an existing generator frame that supports a generator of a wind turbine includes removing the generator from atop the existing generator frame. The method also includes dismounting a control cabinet of the wind turbine from the existing generator frame. More specifically, the control cabinet is electrically connected to one or more wind turbine components via a plurality of cables. The method further includes relocating and securing the control cabinet to an uptower location within a nacelle of the wind turbine with the plurality of cables remaining electrically connected. As such, the method includes removing the existing generator frame from within the nacelle. Moreover, the method includes installing a new generator frame in place of the removed existing generator frame. Thus, the method also includes remounting the control cabinet to the new generator frame.

Abstract: The present disclosure is directed to a working platform mounted within a nacelle of the wind turbine during a repair procedure. More specifically, the working platform may be mounted to a bedplate within the nacelle in an area where one or more drivetrain component(s) would normally be during operation of the wind turbine, but have been removed due to repair or replacement thereof.

Abstract: The present disclosure is directed to a hoistable platform assembly used in uptower wind turbine repairs. The platform assembly includes at least one working platform having a working surface and a platform frame. The platform frame is configured for securement within a nacelle of the wind turbine. The platform assembly also includes a plurality of tooling containers secured to the working surface. Each of the tooling containers includes at least one tool secured therein that is required for the uptower wind turbine repairs. Further, the platform assembly includes a frame structure arranged above the plurality of tooling containers and secured to the working surface via one or more connecting members.

Abstract: A method and system for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate form an extension onto a downwind end of the main shaft with one or more support elements to support the mains shaft on a bearing unit as it is pulled or pushed into the bedplate.

Abstract: The present disclosure is directed to a clamping apparatus for securing a main bearing of a wind turbine. The clamping apparatus includes a clamp member configured for securement to a seal ring arranged with the main bearing, at least one clamping fastener configured through the clamp member, and at least one jacking fastener configured through the clamp member. Thus, the clamping fastener is configured to tighten the clamp member around the seal ring, whereas the jacking fastener is configured to push against the main bearing when tightened so as to maintain the main bearing in place during and installation and/or repair procedure.

Abstract: A method and system are provided for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate. The method and system use rigging and specialized tooling and procedures to perform the method in the field with the machine head remaining atop the tower or removed from the tower.

Abstract: An apparatus and method for removing or installing a bearing unit at the downwind end of the bedplate in wind turbine uses a frame erected at the downwind end of the bedplate. The frame has cradle members located such that the bearing unit can be slid out of the bedplate and supported on the cradle members, or supported on the cradle members and pushed into the bedplate.