Abstract: A method and apparatus is disclosed for use in a hydraulic assembly (1) for purposes of repairing and resurfacing of turbine liner walls (8) pitted as a result of cavitation and the like. The method includes rotation of turbine blades (6) and a turbine shaft (2) through a turning mechanism (18) positioned on a blade (6), so the turning forces are exerted directly between the turning mechanism and the surface of the liner wall (8). The method and apparatus further includes the use of a repair assembly (16) mounted to the turbine blades (6) for selectively positioning a grinding mechanism (104) adjacent the liner wall (8) for grinding and sanding the same. The grinder mechanism (104) includes components for selectively adjusting horizontal and vertical positioning of the mechanism (104). The horizontal and vertical positioning components can also be employed with other mechanisms for performing repairing and resurfacing operations.

Abstract: An anchoring process for use in a hydraulic electric facility turbine structure (1) includes, allowing for anchoring of a turbine liner wall (8) to a backing wall (9) while the liner wall (8) is in place and during repairs. The process includes positioning of apertures (20) within the liner wall (8). Second apertures (22) coaxial with the apertures (20) in the liner wall (20) are drilled into the backing wall (9) sufficient for purposes of embedding a reinforced steel bar (44) in a manner so as to appropriately support the liner wall (8). After the apertures (20, 22) had been formed, an adhesive material (42) in an unactive state in inserted into the aperture (20) of the liner wall (8) and into the secondary aperture (22) of the concrete backing wall (9). The steel reinforcing bar (44) is then inserted through the aperture (20) of the liner wall (8) and into the secondary aperture (22) of the backing wall (9).

Abstract: A method and apparatus is disclosed for rotation of a hydroelectric assembly (1) for purposes of repairing and resurfacing of turbine liner walls (8) pitted as a result of cavitation. The method includes rotation of turbine blades (6) and a turbine shaft (7) through a turning mechanism (18) positioned on a blade (6) so that turning forces are exerted directly between the turning mechanism and the surface of the liner wall (8). The turning mechanism (18) comprises a mounting assembly (19) which mounts a turning wheel (22) driven by a motor drive assembly (24) through a gear reduction mechanism (26). A biasing assembly (27) is provided to selectively urge the turning wheel (22) into frictional contact with the surface of the liner wall (8).