User manual HAYES DISC BRAKES 45-18053ECCAL REPAIR

[. . . ] (Note: The pads on the El Camino are removed and installed from the top of the caliper) 1. Remove the wheel. Using the tab on the pad backing plate, pull the pad toward the center of the caliper and out. There is a spring that holds them in place. That spring snaps on to the post at the center of the piston. [. . . ] The caliper pistons will be pumped out of their bore. This would cause excessive drag on the disc when the wheel and disc are reinstalled, or even make it impossible to install the wheel and dsic. Remove the brake pads from the caliper if they are not already removed. Travel Spacer HINT: If the pads are pushed together tight, slide the Hayes travel spacer between the pads and enlarge the gap until it is large enough to pull the pads out 2. With the pads removed, push the pistons all the way back into the caliper using the box end of a 9mm end wrench. Caution: Don't push on the post in the center of the piston because that will bend the post. Walk the piston back and forth until the piston is all the way back in the bore. When the pistons are back into their Bores, replace the pads ­ putting them in at a slight angle so that the spring catches the post on the piston. D. Remove the caliper from the bike by removing the two mount bolts. Completely remove the caliper hose assembly. Using the Hayes Caliper Plug Tool, remove the outer caliper plug. Completely remove the outer caliper piston by pushing it towards the center of the caliper. Remove the inner caliper piston with compressed air. Caution: Do not grab hold of the piston post with pliers. Temporarily block off the fluid port inside the outer caliper half, angle the caliper so the piston is facing downward, then direct pressurized air thru the banjo hole that the hose connects to. This will force the piston out of the caliper. Carefully remove both square seals from inside the caliper. Caution: Do no scratch the groove in the caliper. Then rinse each part with isopropyl alcohol. Be sure to clean the caliper through all the holes. E. [. . . ] If it is necessary to replace the bleeder, it is available as a service kit. The thread sealant on the bleeder is there only to seal during the bleeding process. If it wears off, replace it with a wrap of Teflon tape thread sealant. Ensure all parts of the hose connections are clean and free of any hair, dirt, etc. , and that the 0-rings are not torn or chipped. [. . . ]