Execution order
1. Clean the pressure and driven disks, as well as the working surface of the flywheel, from dust and dirt.
2. Inspect the driven disk. Cracks on the driven disk parts are not allowed. Check the wear of the friction linings. If the rivet heads are recessed by less than 0.2 mm, the surface of the friction linings is oily or the rivet joints are loose, then the driven disk (or friction linings) must be replaced. Check the reliability of the damper springs in the sockets of the driven disk hub; if the springs are broken, the disk must be replaced. Check the runout of the driven disk if its warping is detected during visual inspection. If the runout exceeds 0.4 mm (measured at a distance of 2.5 mm from the outer edge of the disc), the disk needs to be replaced.
3. Inspect the friction working surfaces of the flywheel and pressure plate, paying attention to the absence of deep scratches, nicks, dents, obvious signs of wear and overheating. Loosening of the riveted joints of the pressure plate parts is not allowed. If the above defects are present, it is recommended to replace the units. Check the warping of the pressure plate by applying a metal ruler to its working surface. If a 0.3 mm thick feeler gauge can be inserted somewhere under the ruler, then replace the pressure plate with the casing assembly.
4. Assess the condition of the diaphragm spring of the pressure plate by visual inspection. The contact points of the spring petals with the clutch release bearing should be in the same plane and have no obvious signs of wear.
5. Check the ease of movement in the axial direction of the driven clutch disk along the splines of the primary shaft. If movement is difficult, remove burrs from the splines. Radial play of the disk on the shaft is not allowed.