Abstract: Disclosed is a method of repairing at least one side of a dovetail portion of a generator slot wall. The dovetail portion of the slot wall is receptive of at least two adjacent slot wedges, and the dovetail portion includes a radial entry surface, an inwardly tapered surface, and an intermediate radial surface. The method includes forming at least one repair groove at least partly along the inwardly tapered surface and in a radial direction along the radial entry surface. The forming removes material from the slot wall. At least two adjacent slot wedges are replaced with at least two repair wedges. The at least two repair wedges have a butt joint between the adjacent repair wedges and the butt joint is located between adjacent repair grooves.

Abstract: A machine cutter including a cutting bit positionable in a slot of a machine; a drive shaft rotatably driving the bit; a bracket having a plurality of angular positions for supporting and pivoting the bit wherein bit pivots about a pivot point on the bracket proximate to the bit, and a frame supporting the bracket on a slidable support providing linear movement to the bit.