Maintenance of spring clutch

Common knowledge of spring clutch maintenance:
Most of the time the clutch spring is under the action of static pressure. If the clutch spring is used for a long time, plastic deformation will occur, the free length will be shortened and the elastic force will be weakened. When the elastic force of clutch spring is weakened, the torque transmitted by clutch will be reduced, and the power of engine can not be fully exerted, resulting in the powerlessness of locomotive.

Most of the time the clutch spring is under the action of static pressure. If the clutch spring is used for a long time, plastic deformation will occur, the free length will be shortened and the elastic force will be weakened. When the elastic force of clutch spring is weakened, the torque transmitted by clutch will be reduced, and the power of engine can not be fully exerted, resulting in the powerlessness of locomotive.

When it is found that the elastic force of the clutch spring is weakened, it can be adjusted by adding a gasket of appropriate thickness in the pit of the parts in contact with the spring. When shimming, it should be noted that the free length (including gasket thickness) of each spring on the same clutch assembly should be consistent. If the spring cannot recover its original elasticity after adding gasket, a new set of springs shall be replaced. Generally, when the spring is used for 2500-3000h, 1-2mm thick gasket should be added to adjust the pressure; after 5000h of service, all springs should be replaced at the same time.