SEVERAL MEN WERE HOISTING A BELT TO PERFORM A BELT SPLICE. ONE END OF THE BELT HAD BEEN PULLED UP. THEY WERE TRYING TO RAISE THE OTHER SIDE USING A COME-ALONG & ELECTRIC HOIST ALTERNATELY. THE INJURED WAS USING THE COME-ALONG. HIS LEFT HANDWAS RESTING ON THE HEAD PULLEY ADJUSTMENT NUT. HOOK SLIPPED OFF THE HEAD PULLEY, CATCHING HIS FINGERTIPS BETWEEN ADJUSTMENT NUT & FRAME.