Kohler 114749-9-AE Manual

Service Kit Instructions
Fill Valve Conversion Kit
114749-9-AE

Tools and Materials
Before You Begin
WARNING: Risk of property or product damage. Do not
use in-tank cleaners in your toilet. Products containing
chlorine (calcium hypochlorite) can seriously damage fittings
in the tank. This damage can cause leakage and property
damage.
Needlenose PliersWire Cutter
Rags
Adjustable
Wrench
Wax Pencil
114749-9-AE 2 Kohler Co.

1. Prepare the Site
Turn off the water supply.
Drain the water from the tank.
Disconnect the rim-feed hose from the fill valve.
Disconnect the coupling nut from the fill valve shank. Do not
bend or kink the supply tubing.
Remove the hex lock nut from the valve shank. Lift the entire fill
valve out of the tank, and set it aside. You will refer to it later to
determine the proper length float rod to install.
Rim-Feed
Hose
Supply
Stop
Fill
Valve
Hex Lock Nut
Compression
Nut
Coupling
Nut
Washer
Tubing
Valve Shank
Kohler Co. 3 114749-9-AE

2. Remove the Original Flush Valve
Note the position of the flush valve in relation to the tank.
Measure the existing flapper chain length from the flapper chain
attachment location to the hook. Record this measurement for use
later. Note the hook attachment location.
Lift the flapper and determine which style of flush valve you are
removing. If the flush valve is held in place with three valve lugs,
loosen the valve lug screws, pivot the valve lugs to the side and
lift out the flush valve.
For flush valves without valve lugs, firmly grasp the flush valve;
twist left or right (depending on tank clearance) and pull to
remove.
Remove the original flush valve and discard it.
Clean all dirt, debris, and water from the tank bottom area
around the flush valve hole.
Valve
Lugs
Overflow
Tube
Trip Arm Trip Lever
114749-9-AE 4 Kohler Co.

3. Mark the Waterline
For Models K-3385, K-3401, and K-3408:
Using a wax pencil, mark a new waterline 1/2″(13 mm) above
the current waterline.
K-3385
K-3401, K-3408
1/2"
(13 mm)
Wax Pencil
Kohler Co. 5 114749-9-AE

4. Attach the Seal
Attach the black seal to the flush valve bottom so the large flat
surface faces away from the flush valve.
114749-9-AE 6 Kohler Co.

5. Align the Flush Valve
Insert the screws into the holes located on the inside of the flush
valve.
Thread the valve lugs onto the screws.
Position the valve lugs so they face inward.
Insert the flush valve into the tank bottom hole, and align it in
the same position as the original flush valve.
Swing the valve lugs outward so they extend under the tank hole
bottom edge. Hold the valve lugs in place with a needlenose
pliers. Evenly tighten the valve lugs with a Phillips screwdriver.
Do not overtighten the valve lugs.
Valve Lugs
Kohler Co. 7 114749-9-AE

6. Attach the Flapper
Attach the flapper to the flush valve.
Remove the hook from the chain, and reinstall it at the same
chain length as the original flapper.
Attach the hook to the trip arm.
Check for correct operation. There should be some slack in the
chain when the flapper is at rest.
If necessary, adjust the hook as needed to achieve correct
operation.
Using a pliers or wire cutter, remove all but three of the extra
chain links.
Flapper
Flush Valve Seal
Chain
Hook
114749-9-AE 8 Kohler Co.

7. Complete the Installation
Unthread the float rod from the fill valve and float ball of the
original fill valve.
Compare the old float rod to the two new float rods included in
this kit.
Select the float rod that is the same length as the old float rod.
Discard the old fill valve and unused float rod.
Thread the locking nut onto one end of the new float rod.
Attach the new float rod to the fill valve.
Attach the float ball to the new float rod.
Insert the fill valve through the hole in the bottom of the tank.
Loosely tighten the hex lock nut to the shank of the fill valve.
Make sure the float ball does not interfere with the flush valve,
flapper chain, trip arm, or the tank wall. Adjust the float ball as
needed.
Secure the hex lock nut. Do not overtighten.
Flexible Supply Hose
Valve Shank
Rubber Washer
Fill Valve
Float Ball
Float Rod
Kohler Co. 9 114749-9-AE

Complete the Installation (cont.)
Connect the rim-feed hose to the fill valve and toilet.
Turn on the water supply.
Flush the toilet several times to verify proper operation.
114749-9-AE 10 Kohler Co.