Rear Brake Calliper - VESPA 633844 IT Service Manual

Braking system
This section è is devoted to the description of the braking system components.

Rear brake calliper

Removal
- Remove the rear wheel.
- Remove the pad retention pin.
- Using a pin partially remove the brake pad re-
tention pin.
- Remove the screws fixing the brake calliper to
the crankcase then remove the brake calliper com-
plete with pipe.
- Complete the extraction of the pad retention pin,
the spring and the pads.
N.B.
IF IT IS NECESSARY TO REPLACE OR SERV-
ICE THE BRAKE CALLIPER, BEFORE REMOV-
ING THE FITTINGS FIXING THE CALLIPER TO
THE SUPPORT BRACKET, FIRST LOOSEN
THE OIL HOSE FITTING AFTER HAVING EMP-
TIED THE SYSTEM OF THE CIRCUIT BEING
EXAMINED.
Overhaul
- Remove the rear brake calliper.
- Suitably hold the brake calliper in a clamp
- Remove the two calliper coupling screws as
shown in the photo
- Remove the two pistons from the calliper body
with the aid of short blasts of compressed air
through the brake fluid holes
- Remove the dust ring and the O-ring of each half
calliper.
- Remove the O-rings in the half calliper.
N.B.
WHEN REMOVING THE O-RINGS, BE CARE-
FUL NOT TO SCRATCH THE HALF CALLIPER
SEATS
BRAK SYS - 2
Vespa GTV 250 i.e.