Technical data

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Periodic Maintenance Operations

chap. 2

Release 00 2002-09

2-19

Atlantic 500

CAUTION

BLEEDING THE BRAKING SYSTEM

(FRONT SIDE ONLY)

Read through the paragraph DISC BRAKES.

Any air present in the brake circuit acts as a cushion,

absorbing much of the pressure applied by the brake

pump and reducing the effectiveness of the brake

caliper. The presence of air is indicated by a spongy

feel of the brake lever and a reduction in the braking

action.

In view of the danger for both the rider and the

vehicle, it is essential that the hydraulic circuit

should be bled after reinstalling the brakes and

restoring the braking system to its normal operat-

ing conditions.

Loosen the four screws (2) on brake fluid reservoir (3).

Remove the cap (4).

NOTE

To avoid spilling the brake fluid when topping

up, be sure to keep the fluid in the reservoir parallel

with the ground.

Remove the gasket above the cover.

Check if the brake fluid completely covers sight (6), and

if necessary top up.

Remove the cap from breather valve (7).

Connect a transparent pipe (9) to breather valve (8).

Take care not to soil the pads or the disc with

brake fluid.

Place the free end of the transparent pipe in a con-

tainer (10).

Slowly pull the brake lever 2-3 times to the end of its

travel and then keep it pulled.

Loosen breather valve (8), press the lever and check

if any air bubbles come out of the transparent pipe

with the brake fluid.

Before releasing the brake lever, retighten

breather valve (8) so as to prevent air from getting

into the brake circuit.

When the brake fluid comes out with no air bubbles,

tighten breather valve (8) and then release the brake

lever.

Tightening torque for breather valve (8):

14 Nm (1.4 kgm).

NOTE

Repeat the last three operations until all the

air has been purged.

After refitting the parts, repeatedly operate the

brake lever and ensure that the braking system is

working properly.

CAUTION