Incomplete clutch disengagement (clutch «leads»)
Insufficient travel of the clutch pedal - Adjust the clutch actuator.
Warping of the driven disk (end runout more than 0.5 mm) - Repair or replace the disk.
Jamming of the hub of the driven disk on the splines of the input shaft - Clean the splines, apply grease LSTs-15 or SHRUS-4 to them. If the splines are worn, replace the input shaft or driven disk.
Warped or warped pressure plate - Replace clutch cover assembly with pressure plate and spring.
Weakening of rivets or breakage of friction linings of the driven disk - Replace the linings, check the end runout of the disk.
Clutch cable failure - Replace cable.
Incomplete engagement of the clutch (clutch «slips»)
Increased wear or burning of the friction linings of the driven disc - Replace the friction linings or the driven disc.
Lubrication of the friction linings of the driven disc, surface of the flywheel and pressure plate - Thoroughly rinse the oily surfaces with white spirit, replace worn or damaged gearbox and engine oil seals.
Clutch Actuator Damaged or Seizing - Eliminate causes of seizing. Replace damaged parts.
Jerks during clutch operation
Lubrication of the friction linings of the driven disk, flywheel and pressure plate surfaces - Thoroughly wash the oiled surfaces with white spirit, replace worn or damaged gearbox and engine oil seals.
Clutch Actuator Sticking - Remove causes of sticking. Replace damaged parts.
Surface damage or warping of pressure plate - Replace clutch cover and pressure plate assembly.
Increased noise when engaging the clutch
Broken disc damper springs - Replace the driven disc assembly.
Increased noise when disengaging the clutch
Wear, damage, leakage of grease from the clutch release bearing - Replace the bearing.