The EE was operating the C.M., he was making the first cut in the C.C. left from No. 4 to No. 5 entry. After making the initial cut,EE backed the C.M. into C.C. between No. 4 and 3 entries to set the machine to slab the right side of the cut. As he backed the machine into the C.C., he was pinned between the outby rib of the C.C. and the left side of the cutter head. (See attached)