Disassembled clutch: 1 - pressure plate; 2 - clutch cover; 3 - diaphragm spring; 4 - driven disk
Remove the gearbox (see subsection 12.2.).
Note 1. When loosening the clutch cover mounting bolts, block the flywheel with a screwdriver. Install the bolt to stop the screwdriver.
Note 2. It is possible to remove the clutch without a mandrel, but at the same time it is necessary to hold the driven disk - it may fall out of the clutch housing. The mandrel can be made to the dimensions of the input shaft, or an old input shaft can be used instead.
The working friction surface of the flywheel.
1. Insert a mandrel into the hole in the pressure plate and unscrew the six bolts securing the clutch cover to the flywheel (see notes 1 and 2).
2. Carefully remove the clutch cover with the driven disc.
3. Inspect the driven disk. There should be no cracks on the parts of the driven disk. Check friction lining wear. Replace friction linings or driven disc if: a) rivet heads are recessed to a distance of less than 0.2 mm; b) the surface of the friction linings is oily; V) riveted joints are loose.
4. Check up reliability of fixing of damper springs in nests of a nave of a conducted disk. If the springs are broken, the disc must be replaced. If a warped disc is detected during visual inspection, check its runout. If the runout is greater than 0.5 mm, replace the disc.
5. Inspect the working friction surfaces of the flywheel and pressure plate: they should not have deep scratches, scuffs, nicks, obvious signs of wear and overheating. It is unacceptable to weaken the rivet connections of the pressure plate parts. If defects are found on the flywheel or pressure plate, we recommend replacing them.
6. Carefully inspect and evaluate the condition of the support rings and pressure plate diaphragm spring. Support rings must not have cracks or signs of wear. The presence of cracks in the diaphragm spring is unacceptable. The points of contact of the spring petals with the clutch release bearing must be in the same plane and not have obvious signs of wear.
7. Install the driven plate into the pressure plate housing so that the less protruding part of the hub is directed towards the flywheel.
8. Insert the centering mandrel into the splines of the driven disc from the side of the diaphragm spring.
9. Install the clutch on the flywheel and tighten the six bolts securing the clutch to the flywheel evenly diagonally to a torque of 19-31 Nm (1.9-3.1 kgf·m). Then remove the centering mandrel.