Abstract: A method and apparatus for installing a piston over a lip seal on a shaft includes a cylinder or primary force and a weight member or secondary force. The primary force and secondary force are coupled by a resilient member, which will permit the secondary force to retract from the assembly process when the force needed to complete the assembly is above a predetermined value.

Abstract: An improved method and apparatus for installing a seal is provided. The method is preferably applied to install a lip seal onto a clutch shaft of a hydraulic clutch assembly. The clutch shaft defines a lip seal groove adapted to receive the lip seal. An installation cone and a driver are provided to facilitate the installation of the lip seal into the lip seal groove. The driver is hollow and generally cylindrical, and includes a plurality of angular fingers. The installation cone is initially placed over an end portion of the clutch shaft. Thereafter, the lip seal is placed onto the installation cone. The driver is then pushed over the installation cone such that the angular fingers engage the lip seal and push the lip seal into the lip seal groove without seal roll-over.