Kohler K-4000 Installation And Care Manual page 4

Bridge
Bracket Location
Marks
2. Install and Connect the Module
NOTE: If the toilet tank does not have vent holes, discard the
bridge.
NOTE: The orientation of the bracket location marks to the vent or
other tank features will vary on different models of toilets.
Install the bridge over the vent if the vent is aligned with the
bracket marks.
Install the module so the bracket aligns with the bracket location
marks.
Connect the chain from the canister to the wheel.
1224637-2-E 4 Kohler Co.