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FRONT DISC BRAKE BR-55 < UNIT DISASSEMBLY AND ASSEMBLY > C D E G H I J K L M A B BR N O P 1. Remove the caliper body from the torque member. Refer to BR-43, "Removal and Installation of Brake . 2. Remove the upper sliding pin, lower sliding pin, and sliding pin boots from the torque member. union bolt hole to remove the pistons and piston boots. WARNING: Do not get your fingers caught between the pistons and wooden block. 4. Remove the piston boots from the pistons. CAUTION: Do not reuse piston boot. 5. Remove piston seals from cylinder body, using a suitable tool. CAUTION: • Be careful not to damage cylinder body inner wall. • Do not reuse piston seal. 6. Remove the bleed valve and cap. CALIPER INSPECTION Cylinder Body • Check the inside surface of the cylinder body for score, rust, wear, damage or foreign materials. If any of the above conditions are observed, replace the cylinder body. • Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine emery paper. Replace cylinder body if necessary. CAUTION: • Use new brake fluid for cleaning. Do not use mineral oils such as gasoline or kerosene. Torque Member Check the torque member for wear, cracks, and damage. If damage or deformation is present, replace the torque member. Piston Check the pistons for score, rust, wear, damage or presence of foreign materials. Replace if any of these con- ditions are observed. CAUTION: Piston sliding surface is plated, do not polish with emery paper even if rust or foreign materials are stuck to sliding surface. Sliding Pins, and Sliding Pin Boots Check the sliding pins and sliding pin boots for wear, damage, and cracks. If damage or deformation is present, replace the affected part. ASSEMBLY CAUTION: Use NISSAN Rubber Grease when assembling. 1. Install the bleed valve and cap. BRB0032D SFIA0141E 2011 Pathfinder |