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If your pressure point is like a melted piece of butter and/or you can pull your lever behind your bar, you should bleed your brakes.

To avoid a mess and getting dirty wear gloves and an old shirt and keep a cleaning cloth on hand. Wear safety glasses to protect your eyes from dust and/or liquids.

  1. For easier handling, mount your bike into a bike stand.
    • For easier handling, mount your bike into a bike stand.

    • Remove the rear wheel.

  2. Remove the brake pads from the brake caliper. Carefully push back the pistons with a flathead screwdriver.
    • Remove the brake pads from the brake caliper.

    • Carefully push back the pistons with a flathead screwdriver.

  3. Adjust the braking lever to a 45° angle and remove the bleeding screw. Fill up a quarter of the bleeding syringe with DOT 5.1 brake fluid. Hold the syringe upright, cover the tip with a shop towel, and gently depress the plunger to purge any air bubbles from the syringe.
    • Adjust the braking lever to a 45° angle and remove the bleeding screw.

    • Fill up a quarter of the bleeding syringe with DOT 5.1 brake fluid. Hold the syringe upright, cover the tip with a shop towel, and gently depress the plunger to purge any air bubbles from the syringe.

    • Make sure there are no bubbles that can get into the system during the bleeding procedure.

  4. Fill up three quarters of the second bleeding syringe with DOT 5.1 brake fluid. Hold the syringe upright, cover the tip with a shop towel, and gently depress the plunger to purge any air bubbles from the syringe. Mount the second syringe to the braking lever.
    • Fill up three quarters of the second bleeding syringe with DOT 5.1 brake fluid. Hold the syringe upright, cover the tip with a shop towel, and gently depress the plunger to purge any air bubbles from the syringe. Mount the second syringe to the braking lever.

    • On the caliper side install the hose on the bleeding nipple, then open the nipple 1/2 turn.

    • Assure for another time that there are no air bubbles. You want to avoid having them in your brake.

  5. Push the syringe on the caliper. The piston of the lever mounted syringe will come out. Always leave some fluid in the syringe to prevent air from entering the system. Repeat the process on the lever mounted syringe until there are no more air bubbles or there is no more dirty liquid coming out of the system.
    • Push the syringe on the caliper. The piston of the lever mounted syringe will come out.

    • Always leave some fluid in the syringe to prevent air from entering the system.

    • Repeat the process on the lever mounted syringe until there are no more air bubbles or there is no more dirty liquid coming out of the system.

    • If necessary, remove the syringes and re-fill them with fresh liquid and repeat the process.

  6. When done, tighten the bleeding nipple and remove the hose from the caliper.
    • When done, tighten the bleeding nipple and remove the hose from the caliper.

    • Pull the lever a few times and let it snap.

    • Afterwards push the piston of the lever syringe to make sure that the system is filled completely.

  7. Remove the syringe from the braking lever and install the bleeding screw back to the lever. Clean up the lever/caliper with disc brake-cleaner and re-install the brake pads
    • Remove the syringe from the braking lever and install the bleeding screw back to the lever.

    • Clean up the lever/caliper with disc brake-cleaner and re-install the brake pads

Sonuç

To reassemble your bike, follow these instructions in reverse order.

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Tobias Isakeit

Üyelik tarihi: 31-03-2014

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3 Yorum

Und warum tritt an bremszylinder an der Entlüftung schraube bremsflüssigkeit aus?

Jörg Stalleicken - Yanıt

wir haben alles so gemacht, wie beschrieben, aber es tritt am entlüftungsnippel Öl aus und Luft????

Jörg Stalleicken -

Bei welchem Schritt tritt denn die Bremsflüssigkeit am Entlüftungsnippel aus?

Grundsätzlich ist es normal, dass sich während dem Entlüftungsprozess ein wenig Bremsflüssigkeit am Entlüftungsnippel sammeln kann.

Wichtig ist, dass die Entlüftungsschraube während dem Entlüften nur minimal geöffnet wird, sodass die Flüssigkeit hindurch in das System gedrückt werden kann.

Dennis -

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