By coupling faults include: incomplete inclusion (clutch slips), incomplete off (clutch "holds"), a sharp switch of adhesion, increased noise when you switch the clutch, a malfunction in the drive.
Troubleshooting Transmission (CAT) is possible only with partial or complete dismantling it.
This work requires special tools and highly skilled performers.
However, symptoms typical of faults in the gearbox is useful to know everyone because [...]