The Hydraulic Jack is an essential component of the Bi-Unique biski. The jack allows the ski to be self loaded onto the chairlift. The pump is used to raise the frame height to that of the chair lift. Pressure is then released when getting off the chair.
Having issues with your jack? It can likely be repaired and may be as simple as adding more hydraulic fluid or getting an air bubble out of the cylinder.
Click Here for a how to video on removing and replacing the fluid on your hydraulic jack.