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(8) Seat dust boot in caliper with Installer Tool C-4842 and Tool Handle C-4171 (Fig. 54). (9) Replace caliper bleed screw if removed. WHEEL CYLINDER DISASSEMBLY (1) Remove push rods and boots (Fig. 55). out of cylinder bore. (3) Remove bleed screw. ASSEMBLY (1) Lubricate wheel cylinder bore, pistons, piston cups and spring and expander with clean brake fluid. (2) Install first piston in cylinder bore. Then install first cup in bore and against piston. Be sure (3) Install spring and expander followed by remaining piston cup and piston. (4) Install boots on each end of cylinder and insert push rods in boots. (5) Install cylinder bleed screw. CLEANING AND INSPECTION CALIPER CLEANING Clean the caliper components with clean brake fluid or brake clean only. Wipe the caliper and piston CAUTION: Do not use gasoline, kerosene, thinner, INSPECTION The piston is made from a phenolic resin (plastic material) and should be smooth and clean. The piston must be replaced if cracked or scored. Do not attempt to restore a scored piston surface by CAUTION: If the caliper piston is replaced, install The bore can be lightly polished with a brake hone to remove very minor surface imperfections Fig. 54 Piston Dust Boot Installation 1 – HANDLE C-4171 Fig. 55 Wheel Cylinder Components–Typical 1 – SPRING 5 - 28 BRAKES XJ DISASSEMBLY AND ASSEMBLY (Continued) |