Hayes nine bleed manual

Remove the bleed cap from the caliper and attach your bottle with the proper DOT fluid to the bleed port. You can secure it with a box end wrench. When all your bottles and rag are in place, open the bleed port by a quarter turn. With your bottle filled with new DOT fluid, squeeze liquid steadily into the system. And then release. Do that several times to make sure that you eliminate all the possible air bubbles trapped inside the caliper. Watch the tube of the catch container and be on the look-out for bubbles and the color of the fluid.

When that happens, you can close up the bleed port in the caliper and remove the bottle. Check to see if the pistons are still in their place with the box end wrench and go close the cap. If there is any excess fluid about, clean it off with alcohol and a clean rag. Mount your wheel and give your lever a good couple of squeezes. Get the fluid pumping through the system.

View the discussion thread. Skip to main content. How to Bleed Hayes Hydraulic Brakes. Point the hose upward and do not shake it so that you not drip fluid onto a painted surface. If there is nothing wrong with the rest of the system, leave the hose and caliper attached to the bicycle.

With the grip and shifter removed, slide the master cylinder off the handlebar. Remove the lever by first removing the two 4mm Allen head bolts on each side of the master cylinder. Using a 2mm Allen wrench, unscrew the lever and adjuster bushing from cartridge push rod.

Remove the two plastic bushings that fit between the sides of the lever and the body. Remove the push rod, master cylinder piston, and spring by removing the snap ring and washer using a snap ring tool.

DO NOT attempt to take the rubber seals off of the master cylinder piston. Warning : Always wear safety glasses when removing a snap ring.

Clean and inspect the inside of the master cylinder and all parts. Replace those parts that. Thoroughly clean all of the parts by spraying them with isopropyl alcohol and wiping them with a clean rag. Begin reassembly by dropping the spring and master cylinder assembly into the lever body. Place a small amount of the yellow Versilube onto the ball end of the pushrod. Install the ball end of the threaded push rod into the master cylinder piston. Push on the threaded push rod to assure that all parts are properly in place.

Place the retaining washer over the threaded end of the push rod. Using a snap ring tool, install the snap ring into the snap ring groove on the inside of the master cylinder body. Put the adjuster bushing into the hole in the lever and thread the push rod through the hole in the bushing. Put both plastic lever bushings onto the lever, hold them with your fingers, and then slide.

A small screwdriver through the pivot hole will align the wave washers with the hole in the lever and the holes in the master cylinder body. Drop the pivot pin through the body, lever bushings, and lever hole. Tighten the 4mm Allen head bolts until tight. Put the completed master cylinder back onto the handlebars. Reinstall the hose and bleed the system. Note : When removing the bladder assembly from the master cylinder body, there is no need to remove the hose from the end of the master cylinder.

Remove the two T Torx screws holding the reservoir cap onto the body. Remove the reservoir and bladder assembly. DO NOT try to remove the bladder from the cap. Clean and inspect the bladder and cap assembly. Replace those parts that are damaged with new.

Thoroughly clean all parts by spraying them with isopropyl alcohol and wiping them with a clean rag. Place the reservoir cap and bladder assembly into the master cylinder body. Be sure that all parts fit properly. Install the two T Torx bolts into the reservoir cap. Welcome to ManualMachine.