LiteGait actuators literally do the heavy lifting and despite that they last a very long time.  However, they are electromechanical devices and subject to wear and tear.  The motor heats up, drawing power to turn the screw which a nut travels on while being protected from the bending load of patient weight by the concentric aluminum boxes on the exterior.  The exterior covers the moving parts inside so the wear and tear is on the inside hidden from visual inspection.  While the scheduled maintenance could be performed by the manufacturer, the cost has to be compared to the cost of new replacement. 

Our new double actuated actuators retract to a height perfect for lifting someone from a chair while having an additional 4 to 8 inches more stroke to go over most treadmills and return any patient back to a chair.