first check the oil level in the lube system lh side or rear.
next try moving the joy stick y - or x- simultaniously pressing the yellow power button
the green start button and the axis rapid (joystick) button.if this dont work try the
following and repeat.
open the rh side panel as viewed from front and you should find 2 or 3 breaker resets
(near the top slightly left and to the middle) press these.they're the axis over-travel
if not these then maybe an axis drive fault and it's time for experts