2. Disengage the ends of the spring retainer from engagement with the bearing sleeve.
3. Remove the bearing from the guide sleeve.
4. Press the four tabs of the spring holder and remove the holder. Then remove the bearing from the coupling.
5. Check the new bearing before installation. It should rotate easily, without jamming and without any play.
6. Install the bearing on the coupling (the protruding part of the inner ring must be directed away from the coupling) and fix it with the holder.
7. Before installing the bearing on the guide sleeve, lubricate the sleeve with a thin layer of consistent grease.
8. Secure the coupling with the bearing using the spring retainer and install the gearbox in place.