MANUAL GEARBOX
Repairing the gearbox
21
21-18
JR
Refitting the sprocket
A heating plate with a setting of
150
°
C
should be used
for refitting.
Place the new rings on the cold heating plate. Heat
them for 15 minutes with the thermostat at
150
°
C
.
Proceed in the reverse order to removal.
Refit the rings:
Remove a ring from the heating plate, using pliers, and
use a tube with an internal diameter of
33 mm
to fit it
on the shaft until it is resting on the hub.
NOTE
: the 1/2 gear has dual-cone synchronisation,
bring the notches of the synchro rings together with
those on the hubs and gears.