EMPLOYEE WAS IN AN AREA OF THE MACHINE WHERE HE WAS NOT SUPPOSE TO BE AT, THE OPERATOR DID NOT SEE HIM. AS THE CARRIAGE WAS MOVING FORWARD TO GET ANOTHER FLIGHT, THE EE POSITIONED HIMSELF BETWEEN A STATIONARY LIFT JACK & THE MOVING CARRIAGE WHICH PINCHED HIM & FRACTURED HIS PELVIS. THE OPERATOR HEARD HIM YELL & STOPPED THE CARRIAGE.