THE DRAGLINE OPERATOR AND THE DOZER OPERATOR WERE INVOLVED IN REMOVING THE WEAR CAP ADAPTERS. AFTER REMOVING THE KEEPERS THE ADAPTER WOULD NOT COME OFF. HE THEN ATTEMPTED TO LOOSEN IT BY STRIKING IT WITH A #12 SLEDGE HAMMER. AFTER HITTING SVERAL TIMES BOTH WORKERS RECEIVED SMALL STEEL SLIVERS IMBEDDED IN THEIR LEGS. THE STEEL WAS REMOVED AT THE EMERGENCY ROOM.