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GWFLORID Maintenance Manual 122 Front brake caliper assembly installation 1. Preparations Make sure all parts are clean and free of foreign materials before installation.When installing, apply an appropriate amount of rubber grease to the guide pin and piston's working surface, as well as the rectangular sealing ring and the piston protective cover's working surface. 2. Install the rectangular sealing ring to the caliper. (a) Screw the bleed screw into the caliper's vent holes. Tightening torque: 10±2 N·m (b) After applying an appropriate amount of rubber grease on the rectangular sealing ring's working surface, install them into the caliper's seal groove. 3. Install the piston with piston dust cover on the caliper. (a) Place the piston dust cover on the piston. (b) Stretch the piston dust cover, until its card holder exposes the bottom of the piston. Use tools (for example, about Ф2 mm of iron wire) to assist by stuffing the card holder into the cylinder bore card holder's groove. Caution: The tools being used should not be sharp, as to avoid tearing the dust cover. (c) Then manually press the piston into the bottom of the cylinder bore. 4. Install the guide pin and guide pin dust cover onto the caliper frame. (a) Install the guide pin dust cover onto the guide pin. (b) Screw the guide pin into the caliper frame. Caution: Do not damage the guide pin dust cover. 5. Install an inner and outer brake pad assembly and inner and outer muffler plate subassembly. 6. Install the brake block yoke spring plate as well as the inner and outer brake pad assembly and inner and outer muffler plate subassembly on the caliper frame. Guide pin Guide pin dust cover Caliper frame Brake block yoke spring plate Air bleed screw cap Air bleed screw Caliper Inner muffler plate subassembly Alarm plate Inner brake pad assembly Outer brake pad assembly Outer muffler plate subassembly |