(See Included ILS Chart) What to Do After SMT RDL 084?
SMT RDL 084 is simply a lead radial, so it is there to let you know when to start your turn so that you can intercept the SIU 253 course without overshooting it during the turn.

Just below and to the left of the airport is the box which shows the ILS frequency.  It tells us that the DME identifier for this ILS is ITFR, so the distances are provided based on the distance from the DME transmitter associated with the ILS.