VESPA GTS 250 I.E. Workshop Manual page 227

Vespa GTS 250 I.E.
To fit sealing rings, roller casings and wedging
washers proceed as follows
- Lubricate the sealing rings with mineral oil and
half fill the roller casings with Z2 grease.
- Insert the seal ring on the pin and the roller bush-
ing with wedging washers at the same time.
- Remove the specific tool and then the part 5
(guide) partially ejected in the previous assembly
stage; part 4 must be always fitted.
- Replace part 3 with part 16 on the stem.
- Push, from the handgrip, the wedging washer -
roller casing - seal ring unit, placing part 16 until it
stops on the swinging hub
- Repeat the operation described above using the
tool fitted with part 16 and part 22* instead of part
4 on the stem, on the side opposite the one shown
in the figure to refit the second wedging washer -
roller casing - sealing ring unit.
To position roller casings on the pin (pin end in
contact with the internal bottom of the roller cas-
ings) proceed as follows:
- Use the tool with part 20 and 21 fitted to the stem
as indicated in the figure.
- Push the two roller casings with the handgrip until
their bottoms make contact with the pin end.
- Use the specific tool fitted with parts 3 and 4 as
indicated for fitting the spin and push with the
handgrip until the washer is wedged in the swing-
ing hub.
- Remove the spacers, part 17, fill with grease the
area between the steering tube and the swinging
hub, and place the dust guard rings in that place.
Refitting
To refit, carry out the removal operations but in reverse order; grease the fifth wheel fittings and tighten
at the specified locking torques
Locking torques (N*m)
Suspensions
SUSP - 9