Filling the master cylinder with fluid
Since the brake master cylinder is not equipped with a check valve, if there is no brake fluid in it (before bleeding the brake, it is necessary to remove air from the master cylinder). To do this, fill the reservoir with brake fluid, press and hold the brake pedal. Ask your partner to clamp the outlet holes of the brake master cylinder with his fingers and smoothly release the pedal. To completely fill the internal cavities of the cylinder, repeat this procedure several times.

Removal air from lines and working cylinders
Bleeding of air from the brake system is carried out using standard methods with the engine running.

[The article is reprinted from this source: MITSUBISHIMAN.ru]
The sequence of air removal from the branches of the hydraulic system is shown in Figures M21.032 and M21.033.
Note: During the bleeding process, regularly check the level and top up the brake fluid in the master cylinder.
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