PIAGGIO 633929(IT), Service Station Manual, Page: 223 / 314

- Separate the swinging arm on the engine side
from the vehicle side arm.
- Remove the plastic bushings and the internal
spacer shown in the photo.
- Using a suitable pin remove the roller casings as
shown in the photographs
- Using an appropriate tool plant new roller cas-
ings, being careful to position the bearings with the
O-rings facing outwards
Specific tooling
020244Y 15 mm diameter punch
020115Y Ø 18 punch
Characteristic
Length of the swinging arm tube on the engine
side:
L 175.3 + 0.3 0
Length of the internal swinging arm spacer on
the engine side:
L 183 + 0.3 0
Engine side swinging arm plastic bushing
shim:
3.5 ± 0.05 mm
Frame-side swinging arm plastic bushing
shim:
3.5 ± 0.05 mm
Length of the internal swinging arm spacer on
the frame side:
290 ± 0.1 mm
MP3 125
Suspensions
SUSP - 51