A pump having a symmetric end cap is disclosed. The end cap is attachable in a
first position or a second position wherein the second position is rotated relative
to the housing. A trunnion arm extends in a first direction and a system port opens
in a first orientation when the housing is connected to the end cap in a first
position. The end cap includes structure such that the housing may be connected
in a second position so that the trunnion arm extends in a second direction while
maintaining the system port opening in the first orientation. The end cap may be
provided with a symmetric porting system. A control device for affecting movement
of the swashplate is disclosed. Methods of locking the swashplate into a predetermined
position are also taught.
