2891602 - 3330A14 HYDRAULIC BRAKING SYSTEM - Bleed air
The air in the hydraulic circuit acts as a bearing, absorbing a large part of the pressure exerted by the brake pump and reducing the efficiency of the braking. The air is felt in terms of the "spongey" sensation at the brake pedal and the reduction in the braking capacity. |
Press and release the brake
pedal several times very quickly and then keep it fully depressed.Undo the bleed screw by 1/4 of a turn.When the brake pedal reaches the end of
travel position, tighten the bleed screw.Press the brake pedal repeatedly and then
keep it fully depressed.Undo the bleed screw again by 1/4 of a
turn.Repeat the operation until the fluid flowing
into the container is completely free of air.
During the bleeding, fill the brake fluid reservoir, as necessary. |
The brake fluid recovered should not be reused. The level should always be topped up with new fluid. |
Press and release the brake
pedal several times very quickly and then keep it fully depressed.Undo the bleed screw by 1/4 of a turn.When the brake pedal reaches the end of
travel position, tighten the bleed screw.Press the brake pedal repeatedly and then
keep it fully depressed.Undo the bleed screw again by 1/4 of a
turn.Repeat the operation until the fluid flowing
into the container is completely free of air.
During the bleeding, refill the brake fluid reservoir, as necessary. |
If, after having carried out the bleeding operation, the system is not fully operational, repeat the entire procedure after having waited several hours for the brake fluid to settle down in the system. |