Kohler REACH K-3991T-HC Installation Instructions Manual Download Page 6

-6-

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 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

1388677-T01-A

Summary of Contents for REACH K-3991T-HC

Page 1: ... HC K 3836T MHC Includes REACH Tank 305mm HC K 4979T HC3 REACH Skirted 2PC Toilet 400mm HC K 4153T HC Includes REACH Skirted Bowl 400mm HC K 4074T MHC Includes REACH Tank 400mm HC K 4979T HC4 305mm K 3991T HC 305mm K 3836T MHC 305mm K 4979T HC3 400mm K 4153T HC 400mm K 4074T MHC 400mm K 4979T HC4 1 Copyright Kohler China Investment Co Ltd 2019 2019 NOTES Observe all local plumbing and building cod...

Page 2: ...asket 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 254mm 305mm 8mm T 2 10mm Unit mm Reference Value K 3991T HC OF OUTLET C L 305 340 275 FRONT OF BOWL Finished Wall Supply 732 170 388 394 200 160 790 For new construction re...

Page 3: ...talled 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 SH...

Page 4: ...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 o C Install brackets Plastic Trap Outlet Toilet Gasket Fig 8 8 Install plastic to ground and mounted with 3 set of bolts firmly not su...

Page 5: ...er 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 bo...

Page 6: ...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 clockwis...

Page 7: ... 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 hi...

Page 8: ...an 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 CAU...

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