OPERATION: BLEEDING BRAKING SYSTEM

 

 

This operation of bleeding the brakes allows the removal of the air that has entered into the hydraulic system, while repairing or servicing. This is done after the replacement of the tubings, and lines, and repairs such as changing the rubbers of the wheel cylinders, and of the brake master cylinder, or when the cylinder reservoir is empty. On doing this, one should ensure that there is no air in the system, as the safety of the brakes depends on this condition.

 

 

 

 

 

METHOD OF EXECUTION:

 

1st Step

 

Put the fluid in the brake system} thus:-

a) Remove the cover from the brake master cylinder.

b) Fill the reservoir of the cylinder with fluid and place the cover of the master cylinder on, provisionally.

 

NOTE:

1) Prevent the fluid from falling onto the paint or upholstery of the vehicle.

2) Use fluid according to manufacturer's instructions.

 

SAFETY MEASURE:

AVOID STRIKING YOUR HANDS WHEN REMOVING THE COVER OF THE

BRAKE MASTER CYLINDER.

 

2nd Step –

Remove the air from the system thus:-

a) Connect a hose between the bleeder and the receptacle for receiving the fluid (fig. 1), on the wheel that is farthest away from the master cylinder.

b) Make the pressure within the system build up by repeatedly pumping the brake pedal.

c) Slacken the bleeder of the braking cylinder.

d) Ensure that the fluid with the air bubbles comes out into the receptacle.

 

NOTE:

Do this step with the aid of another person.

 

3^rd step –

Check the travel of the pedal.

 

NOTE:

If there is too much travel of the pedal, repeat the whole process of bleeding.