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: 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: 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.

Abstract: A method of loading a clutch pack into a clutch drum. The clutch pack includes a plurality of friction plates between a plurality of reaction plates. Each reaction plate has a plurality of outside spline teeth slidably received in a corresponding plurality of straight spline grooves in a cylindrical wall of the drum. The method of loading the clutch pack into the drum includes the steps of forming annular seat on an outboard end of the cylindrical wall of the drum interrupted by a plurality of notches where the spline grooves intersect the annular seat, supporting the drum on a platform with the outboard end of the drum opening upward, supporting the clutch pack in a sleeve above the annular seat, releasing the clutch pack for vertical descent toward the sleeve until the outside spline teeth on the bottom one of the reaction plates engage the annular seat, and vibrating the drum at high frequency and low amplitude to induce rotation of the clutch pack within the sleeve.

Abstract: A method of loading a clutch pack into a clutch drum. The clutch pack includes a plurality of friction plates between a plurality of reaction plates. Each reaction plate has a plurality of outside spline teeth slidably received in a corresponding plurality of straight spline grooves in a cylindrical wall of the drum. The method of loading the clutch pack into the drum includes the steps of forming annular seat on an outboard end of the cylindrical wall of the drum interrupted by a plurality of notches where the spline grooves intersect the annular seat, supporting the drum on a platform with the outboard end of the drum opening upward, supporting the clutch pack in a sleeve above the annular seat, releasing the clutch pack for vertical descent toward the sleeve until the outside spline teeth on the bottom one of the reaction plates engage the annular seat, and vibrating the drum at high frequency and low amplitude to induce rotation of the clutch pack within the sleeve.