Prusa Research MMU3 Manual Del Usuario página 43

PASO 7 Selector assembly: Bronze bushing tubes
Insert the bronze bushing tubes into the marked openings on the selector as far as
you can, using your hand. Make sure you are inserting them from the correct side.
Press the tubes in by carefully pushing the assembly against a flat surface.
In the end, the tubes should end up flush with the surface on the other side.
PASO 8 Selector assembly: Rods and Cover
Insert the two M3nS nuts into the marked openings on the side of the selector.
Push the nuts all the way in using the 1.5mm Allen key.
Add the front plate onto the selector. Make sure the side of it is flush with the flat
part of the selector.
Attach the front plate with two M3x10 screws. Tighten them up.
5. Montaje del selector
Ensamblaje Original Prusa MMU3 43