To remove the defective bearing from the cover on the drive side, unscrew the nuts of the screws tightening the bearing fastening washers, remove the washers with screws and press the bearing out on a hand press. If the screw nuts do not loosen (the ends of the screws are punched), cut off the ends of the screws.
It is possible to install a new bearing in the generator cover only if the bearing hole is not deformed and its diameter is not more than 42 mm. If the hole is oversized or deformed, replace the cap with a new one.
The bearing is pressed into the cover on a press and then clamped between two washers tightened with screws and nuts. After tightening the nuts, loosen the ends of the screws.
When replacing the rotor bearing on the side of the slip rings, the cover must also be replaced at the same time, because if the bearing is damaged, the seat in the cover is also damaged. The bearing is removed from the rotor with a puller and pressed on the press.