2
3
4
5
6
Insert the ball-headed screw into the
indicated hole in the left front lower arm.
2
Recover the main model
assembly, along with the parts
from Stages 4 and 21, as shown.
3
Insert the ball-headed screw
into the bottom hole of the
hub carrier.
4
Insert the locknut into the
same hole as the screw, with the
flat side facing out. Screw the nut
into the hole, leaving it slightly
loose so that the ball-headed
screw is still able to move.
5
Insert the smaller bearing into
the centre of the outer face of the
hub carrier. Then insert the larger
bearing (arrowed) into the centre
of the inner side of the hub carrier.
121
122
6
