EMPLOYEE WAS IN QUARRY WORKING ON 1C CONVEYER. HE REMOVED THE MOTOR COUPLING GUARD AND TIED A ROPE AROUND IT AND SAT IT ON TOP OF THE HAND RAIL.WHEN HE WAS RELEASING HIS HAND FROM THE GUARD TO GRAB THE ROPE, THE GUARD SLIPPED AND FELL CATCHING HIS RIGHT HAND BETWEEN THE GUARD AND HAND RAIL. MIDDLE, RING, AND LITTLE FINGER WERE CUT REQUIRING 11 STITCHES, REQUIRING STITCHES.