Installation Guide
– Please keep a copy of these instructions on the property in which the product was installed.
d
a
c
b
If Replacing Seal
Use only a genuine Fluidmaster
242 seal.
Replacing Valve Cap
Connect cap to rod (a).
If you have a 400 with a metal rod (c), place
adapter (b) into slot at end of cap.
Place cap on valve with rod next to refill tube (d).
Push down and twist clockwise until it stops.
SEAL
LOCATION
242
SEAL
Removing Valve Cap
Turn off water supply & flush out tank. Push float up with right hand
(see picture). Grip and hold shaft under float with right hand. With left
hand, twist cap and lever counter clockwise 1/8th of a turn to unlock
the top cap. Pressing down on top may be helpful with older valves.
Let cap assembly hang on float cup.
Flushing Out Debris
Hold cup upside down over uncapped valve to
prevent splashing. Turn water supply on and off a
few times. Turn water supply off when putting cap
back on valve.
Removing Valve Cap, Flushing Out Debris, Replacing Seal, & Replacing Valve Cap
IF FILL VALVE DOES NOT TURN ON, WILL NOT TURN OFF, OR WILL NOT REFILL THE TANK AFTER THE FLUSH
• Remove top cap and check for debris. If you find debris, or flow is weak: Inspect lower section of fill valve for partial blockage. Partial blockage may be at shut off valve or in
water supply line (See “REMOVING VALVE CAP & FLUSHING OUT DEBRIS”).
• If fill valve has been in use for some time and/or float cup does not drop when flushing tank, replace seal with a genuine Fluidmaster 242 seal (See “IF REPLACING SEAL”).
IF FILL VALVE TURNS ON AND OFF BY ITSELF, OR IS RUNNING WHEN NO FLUSH HAS TAKEN PLACE
• This indicates the tank is losing water. The fill valve is refilling lost water. Clean flapper and drain seat. If leak continues change flush valve. Install Fluidmaster 507AKR, 540AKR
or 555C kit.
• Please ensure all steps were followed in "Step 8". Ensure the flapper is clipped in to fall evenly on flush valve seat.
• Flush valve locknut may not be tight enough. Check locknut and use tools to ensure locknut is tightened 1/2 turn past hand tight.
IF WATER LEVEL IN BOWL IS TOO LOW
• Make sure the refill tube is supplying water down overflow pipe.
• Water level in tank may be too low. Raise water level to 1/2” below top of overflow pipe (See “Step 10”). You may have to lengthen the fill valve in order to increase the water
level in tank (See “Step 5”).
• Flapper may be closing too soon. Give flapper chain approximately 1/2” of slack.
LEAKING AT BOLTS AND/OR ON BASE OF TOILET
• Bolts are likely not tight enough or a step was missed in “See Step 4”. Please ensure all steps were followed. Tighten bolts further until tank does not rock and leak stops.
LEAK OCCURS WHEN TOILET IS FLUSHED
• This usually means that tank to bowl gasket is not centered and seated properly. Please ensure all steps were followed in “Step 3”. Tank to bowl gasket needs to fully cover
locknut.
• Note: If you have a Gerber or Kohler two piece toilet, it is recommended you use a different tank to bowl gasket. Gerber: Use an extra thick Gerber gasket.
Kohler: Use a triangular Kohler gasket. (Both Gerber and Kohler gaskets not included).
TROUBLESHOOTING
10
HINT: When adjusting float cup, flush
tank and make adjustment while tank is filling.
A. Turn water on.
B. Turn water level adjustment screw to set float
cup to desired level.
C. Turning adjustment screw clockwise raises
water level.
D. Turning adjustment screw counter clockwise
lowers water level.
E. Flush toilet to check new
level.
HINT: Twisting adjustment
screw 8 times moves float
by 1/2”.
Adjusting Tank Water Level
B
A
9
A. Attach water supply coupling nut to fill valve
– Turn clockwise by hand until tight.
WARNING: Over tightening the nut could damage
fill valve or coupling nut resulting in flooding and
property damage. Fluidmaster Click Seal
®
Connector is
recommended: a perfect seal every time without over
tightening.
B. To check for leaks, turn on water
supply.
C. If leaking occurs – turn coupling
nut just enough to stop leaking.
D. Flush toilet to check.
NOTE: We recommend replacing the
existing water supply connector if
it is worn or over 5 years old – this
will protect your home from potential
flooding and property damage.
Attach Water Supply Connector
1
2
3
4
5
6
7
8
9
M
A
X
M
I
N
C
B
A
8
If the removed tank lever is bent (see picture) proceed to next
step. If the lever is not bent then proceed to step B.
Before installing new tank lever, please remove tank
lever lock nut.
A. The new lever will need to be bent like the lever that
was just removed. To bend lever, start bend 2 inches
after 90 degree elbow. Do not bend arm quickly or
back and forth repeatedly.
B. Push lever through tank lever hole. Slide tank lever
locknut onto lever arm with flat side of nut facing tank
lever thread.
C. Tighten locknut in the direction shown (clockwise).
Do Not Over Tighten. Lock nut is a reverse thread.
Attach the clip of the chain to the tank lever directly
above the flapper. Leave ½ inch of slack in the chain.
Installing Lever & Flapper Chain
Adjusting the
PerforMAX
®
High Performance
Flapper
A.
Turn rubber portion of flapper
left or right to adjust performance
level.
B.
Clockwise for greater flush
volume.
C.
Counterclockwise for lower
flush volume.
Right Wrong
B
®
A
A. If you are installing the Flush 'n Sparkle
®
Self-Cleaning Toilet
System, hang the cartridge holder inside the tank as shown. Attach long
tube (“OUT”) with refill clip to the overflow pipe. Ensure refill clip is
positioned so that the water flow is directed down
the overflow pipe. Attach the other tube (“IN”) to
fill valve nipple.
B. Ensure “O” ring is secure in the top groove of
the bleach cartridge. Insert cartridge into
cartridge holder. Turn
clockwise 1/4 turn to lock into
place.
NOTE: For more detailed
instructions and warnings,
please refer to the Flush ’n
Sparkle instruction sheet
included with product.
Installing Flush 'n Sparkle
®
Self-Cleaning Toilet System (400AFSC only)
7
a
b
NIPPLE
6
A. Place fill valve in tank.
B. Align fill valve nipple to face overflow pipe.
C. Press down on shank from inside while tightening locknut.
D. Hand-tighten only – DO NOT OVERTIGHTEN! Overtightening may
crack fill valve or tank causing flooding. If you have a Flush’n Sparkle
Self-Cleaning Toilet System, proceed to Step 7.
E. Attach one end of refill tube (b) to refill clip (a).
F. Place clip on right side of overflow pipe.
G. Attach other end of tube to nipple on fill
valve – Cut tube as necessary.
H. Squeeze tube clamps and slide to ends of
tube and release.
WARNING: Placing refill tube down overflow
pipe may cause significant water waste.
Installing New Fill Valve
DO NOT
MOVE
LOCK RING!
Fill Valve Positioning:
A. Position fill valve in tank – DO NOT FULLY
INSTALL.
B. Set top of fill valve 3” above overflow
pipe.
Fill Valve Height Adjustment – If Necessary:
A. DO NOT MOVE LOCK RING.
B. Increase height – twist lower shank
counter clockwise.
C. Decrease height – twist lower shank
clockwise.
D. Critical Level Mark (C.L Mark) MUST be
positioned 1” above top of overflow pipe –
required by Universal Plumbing Code.
“C. L”
MARK
MEASURE
HEIGHT ONLY:
DO NOT INSTALL
LOCK
RING
”
1
Preparing the Fill Valve for Installation (continued)
A
B
D
C
E
Shank
Washer
Threaded
Shank
Place Shank
washer onto
threaded
shank of fill
valve. Flat side
up.
5
Fill Valve Parts
A) Refill Clip
B) Refill Tube
C) Shank Washer
D) Locknut
E) Threaded Shank
Preparing the Fill Valve
for Installation
TOILET TANK
TOILET BOWL
TANK TO BOWL
GASKET
BOLT HEAD
METAL WASHER
RUBBER
WASHER
METAL HEX NUT
METAL WASHER
RUBBER WASHER
METAL HEX NUT
CORRECT ORDER
OF HARDWARE PARTS
4
1. Place one rubber washer on each tank bolt.
2. Place tank bolts through bottom holes of tank.
3. For reinforced connection: Under tank, place metal
washers on thin hex nuts and hand tighten to toilet tank.
Caution: The thin metal hex nut should not touch the toilet
bowl porcelain. If touching, stop and remove nuts and
washers.
4. Set tank onto bowl. Place rubber washers, metal washers
& hex nuts on each bolt under toilet bowl. Using tool, tighten
hex nuts evenly until tank is snug and does not rock.
For Three Bolt Toilets
The kit contains two extra rubber washers for toilets that
have three bolts. If you need a third bolt and nut, reuse one
of your existing bolt sets along with the new rubber washers
supplied.
Installing Toilet Bolts
3
A. Insert flush valve into tank hole.
Position overflow pipe toward back of tank (Do
not cover bolt holes of tank).
B. Holding flush valve in place, thread large
plastic locknut onto threads of flush valve.
Hand tighten locknut and then use large
adjustable pliers to go ½ turn beyond hand
tight. Do not overtighten.
C. Place tank to bowl gasket on bottom of flush
valve locknut. Gasket should cover locknut.
*NOTE: If you have a Gerber or Kohler two
piece toilet, it is recommended you use a
different tank to bowl gasket.
Gerber: Use an extra thick Gerber gasket.
Kohler: Use a triangular Kohler gasket.
(Both Gerber and Kohler gaskets not included).
Installing Flush Valve
RUBBER
GASKET
LOCKNUT
TANK TO BOWL
GASKET*
TANK
B
RUBBER
GASKET
LOCKNUT
TANK
A
INSTALLATION
2
Before flush valve installation, ensure overflow pipe and water
level of tank are correctly set.
1. THE TOP OF OVERFLOW PIPE (A) must be cut 1” below bottom of
TANK LEVER HOLE (B). Remove tank to bowl
gasket and flush valve lock nut first. Insert
flush valve into tank hole. Mark the flush valve
1” below bottom of tank lever hole. Remove
flush valve and cut overflow pipe at specified
mark.
2. WATER LEVEL (C) is set below top of
overflow pipe (Fluidmaster recommends 1/2”).
Code Compliance helps protect your home &
drinking water supply.
Preparing the Flush Valve for Installation
OVERFLOW
PIPE
FILL
VALVE
A
B
C
WATER
LEVEL
G
F
E
D
1
Remove tank lid. Use pencil to mark water level of tank. Then follow
steps A-G.
A. Turn off water supply (Clockwise). Flush toilet and remove excess water from
tank with sponge.
B. Remove water supply coupling nut. Remove locknut from under tank.
C. Remove fill valve from tank.
D. Unhook flapper chain from tank lever.
E. Remove tank lever nut (this is a reverse thread nut). Pull lever from tank.
F. Unbolt tank from toilet bowl. Remove tank and lay on its side on a safe and secure
surface. Remove washers, nuts and bolts. NOTE: If you have a three bolt tank save
bolt, washer and nut in best condition for future use. Clean bolt & nut with wire
brush and lubricant spray.
G. Remove tank to bowl gasket from under tank. Loosen and remove flush valve lock
nut and remove flush valve from tank.
Remove Old Parts
A
B
C
PREPARATION
PARTS IN THIS KIT:
(1) Fill Valve
(1) Shank Washer
(1) Locknut
(1) Refill Tube
(1) Refill Clip
(1) Flush Valve
(1) PerforMAX
®
High Performance Flapper
(1) Rubber Gasket
(1) Large Plastic Locknut
(1) Tank to Bowl Gasket
(2) Brass Bolts
(4) Stainless Steel Washers
(4) Stainless Steel Hex Nuts
(two thick & two thin)
(6) Rubber Washers
(1) Tank Lever
(1) Tank Lever Locknut
400AFSC only:
(1) Flush 'n Sparkle
®
Dispenser
(1) Chlorine Cartridge
(2) Refill Tubes (one short & one long)
30800 Rancho Viejo Road, San Juan Capistrano, CA 92675
www.Fluidmaster.com • 800-631-2011
Contact Fluidmaster for troubleshooting help or visit www.fluidmaster.com
M-F 5:30 am - 5:00 pm PST.
DON’T
USE
TOOLS
NEEDED
Lubricant Spray
(Optional)
Wire Brush
(Optional)
Mini Hack Saw
(Optional)
Large Adjustable
Pliers
SpongeScissorsBucket
FLOAT
CUP
LOCK RING
FILL
VALVE
TANK SHOULD
LOOK LIKE THIS
WHEN SET UP IS
COMPLETE
SHANK
WASHER
LOCKNUT
TANK TO BOWL GASKET
RUBBER GASKET
FLUSH
VALVE
OVERFLOW
PIPE
FLAPPER
TANK LEVER
REFILL TUBES
CARTRIDGE
REFILL
CLIP
FLUSH ‘N SPARKLE
SYSTEM (OPTIONAL)
LIMITED FIVE-YEAR EXPRESS WARRANTY
Subject to the “Exclusions” set forth below, Fluidmaster Inc. promises to the consumer to repair, or at the option of Fluidmaster Inc. to replace any part of this plumbing
product which proves to be defective in workmanship or materials under normal use for five years from the date of purchase. All costs of removal, transportation and
reinstallation to obtain warranty service shall be paid by the consumer. During this “Limited Five Year Express Warranty,” Fluidmaster Inc. will provide, subject to the
“Exclusions” section set forth below, all replacement parts free of charge, necessary to correct such defects. This “Limited Five Year Warranty” is null and void if this
plumbing product has not been installed and maintained in accordance with all written instructions accompanying the product, and if non-Fluidmaster Inc. parts are
used in installation.
EXCLUSIONS: FLUIDMASTER INC. SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING COSTS OF INSTALLATION, WATER DAMAGE,
PERSONAL INJURY OR FOR ANY DAMAGES RESULTING FROM ABUSE OR MISUSE OF THE PRODUCT, FROM OVERTIGHTENING OR FROM FAILURE TO INSTALL OR
MAINTAIN THIS PLUMBING PRODUCT IN ACCORDANCE WITH THE WRITTEN INSTRUCTIONS, INCLUDING USE OF NON-FLUIDMASTER PARTS. DO NOT USE IN-TANK
DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE
FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY.
DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR
CHLORINE. Use of such products will: (1) RESULT IN DAMAGE to tank components and MAY
CAUSE FLOODING and PROPERTY DAMAGE and (2) VOID FLUIDMASTER WARRANTY.
Fluidmaster Flush 'n Sparkle Toilet Bowl Cleaning System is recommended for those
choosing to use in-tank bowl cleaners and WILL NOT VOID the FLUIDMASTER WARRANTY
because it will not damage the components. DO NOT overtighten nuts or tank/bowl may crack. Always use quality
Fluidmaster parts when installing or repairing. Fluidmaster will not be responsible or liable for use of non-Fluidmaster parts
during installation or repair.
WARNING
FLUIDMASTER
®
400AKC/400AFSC
COMPLETE TOILET REPAIR KIT
INSTALLATION INSTRUCTIONS
PART# 4-766, Grev. 7, 03/17