To service and repair the front brake caliper, first remove the caliper. Be careful not to put fingers in the way of the calipers pistons(s) when applying compressed air as the piston(s) will be fired out causing harm to the user. Pad the interior of the caliper housing using clean cloths during piston removal, using a minimal amount of air to help remove pistons from the bores to avoid damaging them. Blow compressed air through the caliper inlet hole; it will exit through the piston boot, removing the piston. Examine the piston for scoring, nicks, corrosion or worn chrome plating, and replace if the problems are present. Gently remove the caliper boot also in order not to scratch the housing bore without using plastic wood and seal removal tool. Check the caliper bore and seal grooves for scoring, nicks, corrosion or wear, polishing the slight corrosion using a crocus cloth. The disadvantage of the rolling bearing brake system is the inability of the brake pads to come into contact with the rotor on this type of braking (Ripa, NileCrimea, Semerena et al., par. 42). Hence, washers should be applied to the brake pads to maintain friction between the pads and the rotor (Ripa, NileCrimea, Semerena et al., par. 41). As it is inherently impossible to clean the surface, take into account the condition of the housings of the-pad nests for the mechanic in stainings brake installing (Ripa, NileCrimea, Semerena et Inspect the bolt boots for cuts, tears, or wear, changing out any ridden boots . Check the caliper bolts and if they are corroded, do not try to make them look good by polishing, but instead, replace them. Inspect the seal groove in the caliper bore for nicks or burr and replace the caliper if groove is damaged. Remove the bleeder valve cap and bleeder valve from the caliper housing and then clean out all parts in the denatured alcohol and dry out them using filtered, non-lubricated compressed air. Brake caliper compressed air bleeder valve; blow out all passages within the housing to caliper, and to the bleeder valve with filtered, non-lubricated compressed air. For assembly, the two tools Instrument J36349 Front Dust Boot Seal Installer are used to install the bleeder valve and cap on the caliper housing by tightening the bleeder valve to13 Nm (115 inch lbs). Replace a new lubricated piston seal into the caliper bore grooves, making sure that it is not twisted, and install the lubricated boot on the piston and lubricate the piston with cleaned brake fluid. Insert the piston and boot into the caliper bore, forcing the piston to the bottom, and seat the caliper boot in the caliper housing counterbore with the help of the tool, j36349 finally installing the caliper.