Kohler K-3588 Guía De Instalación Y Cuidado página 5

Mark the Installation (cont.)
Lay the template on the mounting location, matching the outside
edge with the line on the floor.
If there is a flange and the holes marked on the template overlap
the flange, you will need to cut or grind the flange so holes can
be drilled into the subfloor
Use masking tape to hold the template in place.
Drill two 9/16" holes, 1-1/2" (38 mm) deep minimum, at the
locations marked on the template.
Kohler Co. 5 1095641-2-E