Patent ID: 8914959
Filing Date: 2014-12-23
Classification: B23P,B25B,F16D,Y10T

Abstract:
1. A method of assembling a piston into an installed position on a shaft over a lip seal disposed on the shaft, the method comprising: positioning the piston to be slidably disposed on the shaft and adjacent to the lip seal; exerting an apply force on the piston with a weight member to translate the piston over the lip seal to the installed position, the weight member being in contact with the piston and having an annular portion, a plurality of pins being attached to the annular portion, the plurality of pins transferring the apply force to the piston; monitoring a reaction force exerted by the lip seal on the piston as the piston translates into the installed position over the lip seal; and determining a condition of the lip seal based on the reaction force.