| 1 | Incomplete clutch separation | Pipeline sealing | Add refueling and exhaust | 
  | Master cylinder push rod free stroke is too large | Adjust master cylinder push rod stroke | 
  | Friction plate warping | Replace friction plate | 
  | Control switch is damaged | Replace control switch | 
  | 2 | Clutch slip | Friction plate with grease or excessive wear | Clean or replace friction plates | 
  | Compression spring is loose or damaged | Replace failed platen or spring | 
  | Severe or severe wear of friction plates | Replace damaged friction plates or clutches | 
  | Clutch hydraulic cylinder push rod free stroke is not enough | Adjust clutch hydraulic cylinder push rod stroke |