USING A RAM (500 LBS.) THAT WAS SUSPENDED FROM A CRANE TO LOOSEN THE HEAD NUT ON A SHORTHEAD CRUSHER. WHEN THE RAM CONTACTED THE WRENCH THAT WAS WELDED ON TO TO NUT, THEWRENCH CAME UNCOUPLED A LLOWING THE RAM TO FALL TO THE GROUND AND CONTACTING THE SAFETY SHOE OF THE INJURED EE CAUSING PARTIAL AMPUTATION OF THE LEFT BIG TOE.