Kohler K-3393 Homeowner's Manual page 12

Replacing Fill Valve Components (cont.)
Insert the refill tube with the tube restrictor into the valve.
Turn the water on.
NOTE: The level in the tank may require adjustment in order to
provide enough water for the pump to operate for the flush
duration but not too much water to overflow into the bowl. If
required, adjust the float elevation by turning the long plastic screw.
Plug the electrical cord for the toilet into the outlet.
Test the toilet for proper operation.
Ensure that the tank refills to the proper level.
Install the tank cover.
1057478-5-C 12 Kohler Co.