Kohler K-13931 Manual Del Usuario página 6

Install the Handles and Check Valves (cont.)
Repeat for a two handle bedpan washer.
Check Valve Installation
To install one check valve, remove the thread protector.
Apply a bead of plumbers putty or other sealant to backside of
the escutcheon according to the putty manufacturer's instructions.
Thread the escutcheon onto the check valve until it is snug
against the finished wall.
Remove any excess putty or sealant.
Thread the shield onto the check valve until tight.
Repeat for a two handle bedpan washer.
1034409-2-A 6 Kohler Co.