Oil Bleed Screw - PIAGGIO MP3 400 i.e. Service Manual

MP3 400 i.e.
Rear - combined
Proceed as follows:
- Position the vehicle on a flat surface and on the
stand
- Loosen the two screws shown in the figure and
open the front brake fluid reservoir.
- Through the bleed screw on the brake calliper,
bleed the system using a hose of adequate diam-
eter.
- Collect the used fluid in a container.
- Pump on the brake lever to completely drain the system of all used fluid.
- Tighten the bleed valve.
- Refill the brake system tank up to the maximum level with the prescribed fluid.
- Attach the tube of the special tool to the bleed fitting.
- Actuate the tool at the bleed fitting, at the same time constantly topping up the brake system tank to
prevent air being drawn into the system, until no more air escapes at the bleed fitting. The operation is
finished when only brake fluid comes out of the bleed screw.
- Close the bleed screw and tighten to the prescribed torque.
- Close the brake system tank.
N.B.
IF AIR CONTINUES TO COME OUT DURING THE BLEED OPERATION, EXAMINE ALL THE FIT-
TINGS. IF SAID FITTINGS DO NOT SHOW SIGNS OF BEING FAULTY, LOOK FOR THE AIR INPUT
AMONG THE VARIOUS SEALS ON THE PUMP AND CALLIPER PISTONS. WHEN CARRYING OUT
THE OPERATION, BRAKE FLUID MAY LEAK FROM THE BLEED SCREW ON THE CALLIPER AND
ON THE DISC. IN THIS CASE; CAREFULLY CLEAN THE CALLIPER AND DEGREASE THE BRAKE
DISC.
Specific tooling
020329Y MityVac vacuum-operated pump
Locking torques (N*m)

Oil bleed screw 12 - 16

Braking system
BRAK SYS - 11