EMPLOYEE ATTACHED A CHAIN FROM THE RAM HANDLE TO THE TRACTOR SO THAT HE COULD LIFT IT OVER THE SIDE OF THE SLED. THE BATTERING RAM WEIGHING APPROX 500-800 LBS, SLIDE SIDEWAY AND PINNED THE EMP LOYEE'S LEG TO THE TRACTOR AND RECEIVED SIGNIFICANT BRUISES TO HIS LEFT LEG JUST ABOVE THE KNEE.