hayes sole master cylinder rebuild ki

It’s time for a Hayes Sole master cylinder rebuild if you’re starting to notice spongy brakes and leaking brake fluid. The rebuild kit has everything you need in it to bring your brakes back in mint condition, from parts to seals.

To start working, it is essential to have the right equipment. Establish a neat workspace, gather brake fluid and a catch pan, as well as a few other items such as a small pick, a hammer, a flat-head screwdriver, a 3/8-inch drive ratchet, a 3/8-inch drive 6-point socket, a 3/8-inch drive extension, and a torque wrench. Once these are in place, you will be ready to begin.

For a successful fluid change, begin by emptying out the brake fluid from the master cylinder. To do this, remove the reservoir’s lid and use the tiny pick to push down the valve in its core. Position a container below the master cylinder for catching discharged fluid, then turn open the bleeder valves located on the calipers or wheel cylinders. After that’s done, actuate the brake lever until every last bit of fluid has escaped.

The retention clip which keeps the piston seated securely within the bore needs to be taken off with a hammer and screwdriver. After removing the clip, take out the piston and do a thorough inspection for any marks or damage it may have incurred. If necessary, replace it immediately.

The final step prior to reassembly is affixing the seals to the piston. Begin by lubricating the piston with brake fluid, then gliding the dust seal smoothly onto the surface. The next step involves positioning the piston O-ring and firmly seating the secondary seal in its corresponding crevice. Top it all off with a final coat of brake fluid for long-term effectivity.

After properly inserting the seals, the piston needs to be carefully returned to its bore. To make sure it is firmly secured, an accompanying clip should be secured. To ensure accuracy while avoiding any damage to the seals, tightness should be ensured with the help of a ratchet and socket.

To begin the process of releasing air from the brake system, attach a bleeder hose to the bleeder valve then put the opposite side into a capture pan. Turn the valve to open it before exerting downward pressure on the brake lever until all bubbles have dissipated within the network. After closing the bleeder back up, repeat the procedure at the second brake caliper or cylinder.

Once the brakes are relieved of their built-up air, follow up by topping off the reservoir with powerhouse brake fluid. A few pumps of the brake lever will generate enough pressure and then – while keeping your thumb down – firmly cap off the reservoir.

Your Hayes Sole master cylinder has surpassed a rigorous rebuilding process and is now ready to ensure lasting performance for countless years.


Post time: 2023-06-28

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