PIAGGIO 633823 Service Station Manual page 218

Suspensions
Hold the crankcase in a perfectly horizontal posi-
tion, heat it with a heat gun at a temperature of
about 120 °C, use the specific tool to fit the bearing
of the flexible transmission lever control shaft. Hit
slightly with a mallet if necessary.
Refit the bearing check seeger ring.
Specific tooling
020151Y Air heater
020376Y Adaptor handle
020362Y 12 mm guide
020357Y 32 x 35 mm adaptor
Hold the crankcase in a perfectly horizontal posi-
tion, heat it with a heat gun at a temperature of
about 120 °C, use the specific tool to fit the bearing
of the electric motor. Hit slightly with a mallet if
necessary.
Specific tooling
020363Y 20 mm guide
020358Y 37x40-mm adaptor
020151Y Air heater
020376Y Adaptor handle
Remove the spring/toothed sector unit from its fit-
ting, slightly hit with a mallet if necessary to release
the unit.
SUSP - 20
MP3 250 i.e.