What are the reasons for the clutch not returning?

[SanArianna]

The reasons for the clutch not returning are: 1. Air entering the clutch pipeline system; 2. Dirty clutch fluid with impurities causing severe internal wear of the clutch master cylinder or blockage of the oil return hole; 3. Insufficient tension or breakage of the clutch return spring; 4. Excessive wear gap of the clutch linkage push rod. Precautions for clutch use are: 1. The clutch must be thoroughly cleaned before installation to remove anti-rust grease and debris; 2. The clutch can be installed coaxially or separately, but the axial direction must be fixed; 3. When the wet electromagnetic clutch is working, lubricating oil must be added between the friction plates; 4. For power and control circuits, the clutch power supply is DC 24 volts; 5. During the installation of the jaw-type electromagnetic clutch, a certain gap must be ensured between the end face teeth to prevent grinding during idling.