Kohler Avid T97367-4-BN Mode D'emploi page 7

Floor
Joist
3. Install the Base
If attached, remove the faucet from the base.
Drill 1-1/2" (38 mm) deep holes with a 3/16" drill bit (provided)
using the marked locations as the centerpoint.
If using concrete as the floor support, use a 3/16" masonry bit
(not provided) to drill 1-1/2" (38 mm) deep holes at the marked
locations.
Realign the base to the position you marked. Make sure that the
cold supply notch is in the correct orientation.
Secure the base to the support with the provided screws and
washers.
Verify that the base is level, and tighten the screws.
Kohler Co.
Screw
Washer
Base
3/16"
Mounting
Hole
Wood
Support
7 1333549-2-A