Remove the timing layshaft pulleys (
Removing the timing layshaft pulleys).
Remove the generator side cover (
Removing the generator cover) and the complete generator (
Removing the flywheel/generator unit).
The main bearings (14) and (15) have offset inner races so that the balls transmit loads from one groove to the other along
straight lines at a certain angle to the bearing axis.
The angle-contact ball bearings are designed for bearing combined loading (radial-axial loads).
Bearings of this type can bear direct axial loads in one direction only. In fact, under the action of a radial load inside
the bearing, an axial force is created that must be counterbalanced by an axial force acting in the opposite direction: that
is why these bearings are generally fitted back to back in pairs.
To replace the bearings proceed as follows: