Warning: Protect your eyes when bleeding the brake system. If brake fluid gets into your eyes, rinse immediately with plenty of water and seek medical attention.
1. Bleeding the brake system is necessary to remove air that enters the system during repairs. Use only a specialized brake fluid for the system, otherwise it may be seriously damaged. If air has entered the system due to a low brake fluid level or disconnection of the brake hoses from the master cylinder, then all four brakes should be bled.
2. If the pipeline was disconnected on only one wheel, then only this caliper needs to be bled (or wheel cylinder).
3. If the pipeline connector between the master cylinder and one of the brakes was disconnected, then it is necessary to bleed the part of the system serving the disconnected tube.
4. Several times pressing a brake pedal at the switched-off engine, eliminate possible pressure drop in the amplifier of a brake.
5. Remove the master cylinder reservoir cap, fill the reservoir with brake fluid. Reinstall the cover.
Note: In the process of bleeding the brakes, check the fluid level often enough, add fluid if necessary so that its level is within normal limits.
6. You will need an assistant, as well as a supply of fresh brake fluid, a clean plastic container, a piece of clean tube with a diameter of 4.8 mm (3/16") made of plastic, as well as a key for opening and closing the fitting.
7. Starting at the right rear wheel, loosen the fitting slightly then tighten until it is closed tightly but opens quickly and easily.
8. Put one end of the tube on the fitting and lower the other into the brake fluid poured into the container (see picture).
11.8. When bleeding the brakes, the hose is connected to the fitting, and its other end is lowered into clean brake fluid - air will be visible as bubbles in the container and hose (all air must be removed before moving on to the next wheel).
1. Bleed fitting.
2. Clean brake fluid.
9. Have an assistant bleed the brakes several times to pressurize the system, then depress the pedal all the way.
10. With the pedal depressed, open the bleed valve until fluid flows out. Watch the air bubbles rising from the end of the tube that is immersed in the liquid. When the fluid flow slows down after a couple of seconds, close the valve and ask the assistant to release the pedal.
11. Repeat the procedures in paragraphs 9 and 10 until the air bubbles completely disappear from the inlet pipe when bleeding, then tighten the bleeder screw, then go to the left front wheel, left rear wheel and right front wheel in this sequence, repeat the above procedure. Quite often check the fluid level in the master cylinder reservoir.
12. Never use drained brake fluid.
13. At the end of the procedure, refill the brake master cylinder.
14. Check the operation of the brakes. When the brake pedal is depressed, it should feel firm without pulsing. Repeat the entire process if necessary.
Warning: do not operate the vehicle if there is any doubt about the effectiveness of the braking system.
Visitor comments