5. Attach the top of the side burner shelf to the grill firebox by inserting three screws into the side burner shelf from inside the grill firebox and tighten. See (A) below. 6. Attach the bottom of the side burner shelf to the side panel of the grill by tightening the two screws inserted in the keyhole slots in Step 3. See (B) below. 7. Attach the right side burner shelf to the control panel by inserting the screw and the washer which were removed from step 3 and tighten, see (C) below. A 9.