Swashplate leveling device

摘要

A swashplate leveling device has a reciprocative leveling follower movable along a fixed axial pin. The cam is biased into engagement with a swashplate of an axial piston variable displacement hydraulic unit to position the swashplate in a zero displacement orientation when there is no control input to the hydraulic unit. The leveling device has a pair of contact points, one positioned on each side of the swashplate tilt axis in a manner that both contact points engage the swashplate when it is leveled to its zero displacement orientation.