WHILE EE WAS UNLOADING A TRACTED MANLIFT FROMHIS TRACTOR/TRAILER LOWBOY TO THE GROUND, THE SUDDEN SHIFT INT HE CENTER OF GRAVITY OF THE TRACTED MANLIFT CAUSED HIM TO FALL FROM THE MANLIFT CONT ROL BASKET TO THE GROUND. THE EE SUFFERED LACERATIONS TO HIS ARMS AND THE BACK OF HIS HEAD REQUIRING STITCHES AND A FRACTURE TO HIS LOWER BACK L-6 AREA REQUIRING THE USE OF A BACK BRACE AND B