Kohler REACH K-3991K-HC User manual

REACH
S-TRAP 305mm
S-TRAP 400mm K-4153 -HC
INSTALLATION INSTRUCTIONS
3/4.8L SKIRTED 2PC TOILET(HC)
3/4.8 ( )
K-3991K-HC
K
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Please read these instructions carefully to familiarize
yourself with the required tools, materials, and installation
sequences. Follow the sections that pertain to your
particular installation. This will help you avoid costly
mistakes. In addition to proper installation, read all
operating and safety instructions.
All information in these instructions is based upon the
latest product information available at the time of
publication. Kohler China reserves the right to make
changes in product characteristics, packaging, or
availability at any time without notice.
These instructions contain important care, cleaning, and
warranty information -
.
please leave instructions for the
consumer
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ORDERING INFORMATION
REACH Skirted 2PC Toilet 305mm (HC)..............K-3991K-HC
Includes REACH Skirted Bowl
305mm(HC) ..................................K-3836K-MHC
Includes REACH Tank 305mm(HC) ............K-4979K-HC3
REACH Skirted 2PC Toilet 400mm (HC)..............K-4153K-HC
Includes REACH Skirted Bowl
400mm(HC) ..................................K-4074K-MHC
Includes REACH Tank 400mm(HC) ............K-4979K-HC4
305mm ( )......K-3991K-HC
305mm ..........................................K-3836K-MHC
305mm K-4979 -HC3
400mm ( )......K-4153K-HC
400mm K-4074 -MHC
400mm K-4979 -HC4
............................ K
.......................................... K
............................ K
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©
©
Copyright Kohler China Investment Co., Ltd. 2019
2019
NOTES
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Observe all local plumbing and building codes.
Shut off the water supply.
Seat post holes are on 140mm centers.
Ensure that the new drain has the correct roughing-in
dimension. This toilet has a 305/400mm roughing-in
dimension. .
Closet flange must be 305/400mm on-center from wall.
Carefully inspect the new fixture for any sign of damage.
See Roughing-in
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140mm
305/400mm( )
305/400mm
No.2 KOHLER ROAD, SANSHUI CENTRAL INDUSTRIAL PARK, LEPING TOWN, SANSHUI DIST., FOSHAN, GUANGDONG, PRC POST CODE 528137
2 528137
8# MENGSHAN RD, ECONOMIC DEVELOPMENT ZONE OF HUANTAI, ZIBO, SHANDONG, CHINA 256410
8 256410
NO.1 KOHLER STREET, ECONOMIC DEVELOPMENT ZONE OF FAKU COUNTY, SHENYANG LIAONING PROVINCE, PRC 110400
1 110400
:
POST CODE:
POST CODE:
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For new construction, refer to the dimensions in
for locating the shut-off valve.
Fixture dimensions are nominal and conform to tolerances
established by ASME Standards (A112.19.2-2018).
This product complies with Q/KCI-006-2018 and GB
25502-2017. Water Efficiency Grade 1.
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installation step
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ASME (A112.19.2-
2018)
Q/KCI-006-2018 GB 25502-2017
1
1412217-T01-A

-2-
WARNING: Risk of personal injury or product
damage
WARNING: Risk of external leakage
: Handle vitreous china products very carefully.
Vitreous china can break and chip if you overtighten
bolts and nuts.
. The fill valve
nut has been factory-tightened to design specifications.
If re-tightening is required, wrench tighten one turn
past finger tight .
TOOLS AND MATERIALS REQUIRED
(Not supplied)
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254mm (10") adjustable wrench
305mm (12") pipe wrench
Metal file (file cut)
Tape measure
Tubing cutter
Level
Hacksaw
Putty knife
Screwdriver
Toilet gasket (wax seal)
Toilet T-bolts (2), 8mm (5/16") diameter
Toilet supply shut-off valve, 10mm(3/8 ) recommended
If the existing toilet does not have a supply shut-off
valve below the tank, install one before installing the new
toilet.
"
NOTICE:
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254mm
305mm
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8mm T 2
10mm
Unit: mm
:
Reference Value
K-3991K-HC
OF OUTLET
C
L
305
340
275
FRONT OF BOWL
Finished Wall
Supply
732
170 388
394
200
160
790
1412217-T01-A

Kohler reserves the right to change marked dimensions without prior notice.
Fig.#1
1
OF OUTLET
C
L
400
FRONT OF BOWL
Finished Wall
Supply
732
170
394
200
160
790
245
370
K-4153K-HC
388
-3-
TO REMOVE EXISTING TOILET
Turn off the water supply. Flush the toilet, and use a sponge
to remove the remaining water from the tank and bowl.
Disconnect the supply shut-off valve (if present), and remove
the old tank and bowl.
()
INSTALLATION
Fig.#2
2
Remove the old gasket from the floor
and the closet flange with a putty knife.
Remove the old T-bolts and discard
them.
if the new toilet is not
installed immediately, temporarily stuff
a rag into the closet flange.
NOTICE:
T
NOTICE: Do not use white cement or high lime content
cements to install this toilet. The expansion of cement due to
a rise in temperature may make the toilet crack or cause
damage. Kohler is not responsible for any damage caused by
installation with the use of cement.
Closet Flange
mm
67mm;
200mm
160
Fig.#3
3
TO INSTALL SUPPLY
SHUT-OFF VALVE
Install the supply shut-off valve so it is
200mm above the finished floor line,
and 160mm to the left of the closet
flange centerline.
The centerline of the supply shut-off
valve outlet should extend 67mm from
the finished wall. Install the supply
shut-off valve with the outlet vertical.
Supply Shut-Off Valve
Closet Flange
Centerline
160
305/400
200
1412217-T01-A

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10mm
5
TO INSTALL BOWL
Position the template and align with
drain hole.
Mark down the position of foot and 5
holes.
Drill holes on ground with the drill of
10mm (3/8"), then insert anchor to
holes.
CAUTION: Please make sure there is
no water pipe or spool under the 5
holes to be drilled.
Fig.#4
4
Fig.#5
5
Drain Hole
3/8
10mm
Fig.#7
7
Firmly press the toilet gasket onto the
toilet outlet of plastic trap.
Wax ring type toilet gasket
should not be installed at temperatures
less than 21 C.
If you are using a toilet
gasket with an integral plastic sleeve,
make sure the gasket is positioned
with the sleeve facing away from the
toilet.
NOTE 1:
NOTE 2:
o
1
21
2
oC
Install brackets.
Plastic Trap Outlet
Toilet Gasket
Fig.#8
8
Install plastic to ground and mounted
with 3 set of bolts firmly.(not supplied)
3(
)
NOTE: Must use the toilet installation
gasket ring (not supplied) to seal the
area where the waste pipe contacts
the construction section to avoid
leakage.
(
)
Fig.#6
6
1412217-T01-A

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Tank
Viewing The
Assembly From
Under The Tank
Fig.#10
10
Fig.#11
11
Carefully align and lower the bowl.
Apply weight to the bowl rim to let the
outlet insert into plastic trap.
Carefully thread the screws into the
brackets, until toilet is secure.
Alternately tighten left and right sides
to prevent pulling the toilet off center.
Install cap to cover screw.
Do not overtighten.
Cap Screw
Bushing
Fig.#12
12
Apply caulk around base.
Outlet
Plastic Trap
INSTALL THE TANK
Carefully turn the tank upside down
onto a protected surface. Fit the rubber
gasket over the flush valve nut.
Carefully position the tank on the bowl
by centering the gasket on the bowl
inlet. Line up the tank and bowl bolt
holes.
The hook, which is outside the front of
the bowl , is for arranging the inlet pipe
and wire of the electronic seat.
Overtightening may
cause breakage or chipping of
the vitreous china.
Install the bolt gaskets onto the tank
bolts, and slide the tank bolts down
through the holes in the tank and bowl.
Assemble the washers and nuts to the
tank bolts. Securely tighten the nuts so
the tank is level.
Be sure the nuts are tight enough to
achieve a watertight seal.
CAUTION: Risk of product
damage.
Tank
Washer
Brass Nut
Tank Bolt
Gasket
Bowl
Tank
Hook
Brass Nut
Tank Bolt
Gasket
Bowl
1412217-T01-A

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Turn shut-off valve on and check for
leaks. If connections are squarely
assembled, a slight retightening of the
nuts will stop any leaks.
If toilet is leaking in between the tank
and bowl, carefully retighten the tank
bolts evenly. Check all bowl and tank
connections for leaks for several days.
Install the toilet seat according to the
seat manufacturer's installation
instructions.
Connect the push button and flush
valve.
Fig.#14
14
IMPORTANT:
Make certain the top is turned to the locked
position. Valve may not turn on if top is not fully in the
locked position.
Before turning on the supply valve for the first
time, follow the steps below to clear sand, debris and rust
from the system:
Make sure water supply is off. Remove valve END by
rotating it 1/8 turn counterclockwise.
While holding a container over the uncapped VALVE to
prevent splashing, turn water supply on and off a few times.
Leave water supply off.
Replace END by engaging lugs and rotating 1/8 turn
clockwise.
Turn on water supply. Check that water level is at the marked
water line.
1/8
1/8
Fig.#15
15
FILL VALVE ADJUSTMENT
Fill float with ballast
Adjust the cam clockwise or counter-
clockwise until the water level is at the
marked water line.
Test flush the toilet.
Check all connections for leakage for
several days.
Set the tank cover in place on the tank.
TO CONNECT WATER
SUPPLY
* Flexible hose (not provided) are
recommended to connect the supply
line to the fill valve. If you use a rigid
connection(not provided), take care
not to apply side forces to the bottom
of the fill valve. Be sure the rigid
connection must be fit with supply line
completely to prevent damage shank
by forced connection.
()
()
Supply Shank*
Supply Shut-Off Valve
Fig.#13
13
1412217-T01-A

PUSH BUTTON INSTALLATION
NOTE: Remove the package and screw out the nut. Make the
button through the tank cover as shown. Be noted that the
button shall be kept level. Arrange big and small flush buttons
according to the label of water consumption on the tank.
Tighten the nut from beneath the tank cover.
TANK COVER INSTALLATION
NOTE: Press down the spring and insert the button into the
installation position on the tank cover. Release the spring to
lock it. Be noted not to let the steel wire of the flush valve
resting on the lever of the fill valve.
-7-
Fig.#16
16
Fig.#17
17
Spring
SYMPTOMS CORRECTIVE ACTION
1. Poor Flush A. Adjust the tank water level to match the waterline.
B. Fully open the water supply shut-off valve.
C. Clear obstructions from the trapway, jet, or bowl rim holes.
D. Clear obstructions from the waste line.
A. Adjust the chain for proper slack so the seal is not held off the flush valve seat.
B. Clean or replace the seal if it is worn, dirty, or misaligned with the flush valve seat, or
if the flush valve seat is damaged. Replace the flush valve seal or flush valve.
C. Clean the fill valve seat/seat washer of debris, or replace the piston/seat washer
assembly.
D. Remove the tank and tighten the flush valve nut if flush valve gasket is leaking. Do
not overtighten. If leakage continues, replace the gasket.
E. Adjust the tank water level if it is too high.
2. No Flush
IMPORTANT: Use only genuine Kohler parts as shown to avoid property damage.
4. Tank takes excessive time to fill.
5. There is excessive noise when the
tank is filling.
3. The fill valve turns on/off by itself
without the toilet being flushed, or it
runs allowing water to enter the tank.
A. Reconnect the chain to the trip lever or flush valve.
B. Adjust the chain assembly to remove excessive slack.
A. Fully open the water supply shut-off valve.
B. Clean the valve inlet, valve head, or supply line. Flush the lines.
A. Partially close the water supply shut-off valve if the water pressure to the toilet is too
high. Check the toilet performance following any such adjustment.
B. Remove dirt or obstructions from the valve head. Flush the lines.
1412217-T01-A

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1. A.
B.
C.
D.
2. A.
B.
A.
B.
C. /
D.
E.
3. /
4. A.
B.
5. A.
B.
()
0C
o
CONSUMER RESPONSIBILITIES
If you live in a hard water area, make certain that the holes in
the toilet rim are kept clean to ensure proper bowl flushing.
Toilet bowl cleaners should be used at least once a week.
Use a long-handled brush to clean the rim holes, and to clean
as far into the trap as possible to prevent mineral deposits
from forming.
Most toilet bowl cleaners are not harmful to the vitreous china
surface of the toilet bowl. Please follow the bowl cleaner
manufacturer's instructions carefully.
Do not use abrasive cleaners or solvents.
Do not use in-tank cleaners. Products containing
chlorine (calcium hypochlorite) can seriously damage
fittings in the tank. This damage can cause leakage
and property damage.
Kohler Company shall not be responsible or liable for any
damage to these tank fittings caused by the use of cleaners
containing chlorine (calcium hypochlorite).
WARNING: Risk of property or product damage.
'
Please do not use hard materials (like
scouring pad) to clean product surface, especially the
product logo.
CAUTION:
CAUTION: Don t use any cement while installing
the toilet.
WARNING: Risk of product damage.
Heat expansion of the toilet may damage
the feet of the toilet. Kohler will not be responsible for
any damage because of using cement.
Do not throw into the toilet what is easy to block it,
such as newspaper, paper pilch, sanitary towel.
Do not bump the vitreous china with great force to
prevent it from damaging and leaking.
Do not use the product in the water below 0 C.
o
1412217-T01-A