7.2.4. Coupling pulls
At this malfunction of coupling the car starts breakthroughs. Torque transmission on driving wheels happens insufficiently smoothly. The reasons can be the following:
1. The engine mount or boxes of gear shifting is faulty or weakened, and at coupling inclusion these units have hesitations.
2. Overlays of the conducted disk have traces of an overheat and hardening that, as a rule, is a consequence of the raised loadings.
3. Press the disk was deformed or on its adjacent surface there are small roughnesses.
4. Roughnesses on a working surface of a flywheel.