Kohler K-3393 - Manual (Page 11)

Replacing Fill Valve Components
Install the Fill Valve Assembly on the Riser
Perform the following steps in order to reassemble the fill valve
assembly on the fill valve body:
Carefully align the fill valve assembly with the coupling on the
riser.
Rotate the fill valve assembly clockwise 1/8 turn to fully engage
it.
Connect the refill tube to the fill valve assembly.
Replace the tank cover.
Turn the water on.
Plug the electrical cord for the toilet into the outlet.
Test the toilet for proper operation.
Install the Fill Valve Assembly and Fill Valve Riser Assembly
Perform the following steps to install the fill valve assembly in the
toilet:
If required, install or replace the washer at the bottom of the tank.
Insert the fill valve riser assembly into the hole in the tank.
Assemble the locknut, washer, and supply nut below the tank.
Tube
Coupling
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Tube
Fill Valve
Assembly
Refill
Tube
Fill Valve
Riser
Coupling
Kohler Co. 11 1057478-5-C