Remove wheel brake cylinder - see operation "Wheel Brake Cylinder, Remove and Install". Disassemble both wheel brake cylinders - remove protective sleeves, remove all inner parts.
 Inspect Clean wheel brake cylinder with spirit or brake fluid, never use any other fluids. Check cylinder bore and piston for wear. If the surface is damaged or rusted, replace the wheel brake cylinder.
 Assemble Lightly coat new rubber parts (except dust sleeves) and cylinder wall with brake cylinder paste. Assemble wheel brake cylinder. Install wheel brake cylinder - see operation "Wheel Brake Cylinder, Remove and Install". | 
Disassemble 