Kohler K-3422-X Instructions D'installation page 6

Open the supply shut-off valve, and check all connections
for leakage. If the connections have been properly
assembled, a slight re-tightening of the nuts should stop
any leakage.
If the toilet is leaking between the tank and bowl, carefully
re-tighten the brass nuts evenly. Periodically check all
bowl and tank connections for leakage for several days
following installation.
Install the toilet seat according to the seat manufacturer's
instructions.
Adjust the float by sliding it up or down on the float rod until
the water level is at the marked water line.
Test flush the toilet several times, and inspect for leaks.
Set the tank cover in place on the tank.
MAINTENANCE
REPLACE THE HOUSING ASSEMBLY
Bend the metal bracket tab 90 degrees toward the tank
wall, as shown. Position the housing assembly mounting
bracket on the back of the toilet tank so it is 4-3/4"
(12.1cm) to the right of the toilet center.
A
1007285-2-
Housing
Assembly
6
Fig. #13
Rear Tank
Wall
Metal
Tab
Fig. #14
Kohler Co., Kohler, WI U.S.A.