- pull the piston partially out of the cylindrical hole and wring out the protective ring with a small screwdriver, squeeze out the firmly seated piston by inserting a pipeline with compressed air, while inserting a piece of hard wood into the caliper hole so that the piston does not hit the metal parts;
Pic. 256. Diagram of the brake caliper: 1 - mounting bolts; 2 - caliper holder; 3 - safety clamp; 4 - brake shoe; 5 - protective ring; 6 - sealing ring of the cylinder; 7 - piston; 8 - cylinder body
- wring out the sealing ring from inside the cylinder bore using a flexible pointed object (when using sharp objects, do not damage the hole), now disassemble the caliper as shown in fig. 256 details;
- thoroughly wash the piston and cylinder bores with brake fluid or alcohol; other cleaning agents should not be used for this procedure, as they can destroy the rubber parts of the brake system;
- check all parts for damage, especially the outer sides of the piston and the working surfaces of the cylinder, in no case allow scratches or corrosive places;
- insert a new sealing ring into the edges of the cylinder and the piston moistened with brake fluid, first carefully insert the closed side into the cylinder bore;
- install the protective ring on the piston and caliper, now the assembled caliper is ready for installation.
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