Gilera 633721 Workshop Manual page 326

Braking system
- Tighten the screws fixing the valve to the chassis,
but above all tighten the brake piping to the pre-
scribed locking torques.
- Fill and purge the braking system as described in
the relevant section.
Locking torques (N*m)
Coupling for oil on the integral braking system
pump Coupling on the integral braking
16 ÷ 20
system device (from the pump)
brake calliper - integral braking system device
coupling Rear brake calliper - integral
20 ÷ 25
braking system device coupling
BRAK SYS - 326
Front
20 ÷ 25
20 ÷ 25
Nexus 500 euro 3