Gilera 633721 Workshop Manual page 323

Nexus 500 euro 3
Circuit bleed calliper fitting 12 - 16
Front
- Remove the rubber hood from the bleed screw.
- Insert a rubber pipe in the bleed screw to permit
the brake fluid to be recovered.
- With the right-hand brake lever, load the system and bring it up to the required pressure.
- Keeping the right-hand brake lever pulled, loosen the bleed screw to purge the air. Then tighten the
bleed screw.
- Repeat the operation until only brake fluid comes out of the rubber pipe.
- Remove the fluid recovery pipe and refit the rubber cap over the bleed screw.
- Top up the brake fluid to the right level in the reservoir.
N.B.
DURING THE BLEEDING OPERATIONS, MAKE SURE THE BRAKE FLUID DOES NOT COME INTO
CONTACT WITH THE BODYWORK SO AS NOT TO DAMAGE IT. FURTHERMORE, DURING THE
BLEEDING OPERATIONS REGARDING THE BRAKE CALLIPERS, MAKE SURE THE BRAKE
FLUID DOES NOT COME INTO CONTACT WITH THE DISC BRAKES AND WITH THE BRAKE
PADS. FAILURE TO COMPLY WITH THIS NORM WILL ENDANGER THE PROPER WORKING AND
EFFICIENCY OF THE BRAKING SYSTEM
If necessary, bleeding can be done using a special vacuum pump
Specific tooling
020329Y MityVac vacuum-operated pump
Locking torques (N*m)
Circuit bleed calliper fitting 12 - 16
Front brake pump
Braking system
BRAK SYS - 323