Page 1
5900 SERIES
LEVER & CROSS HANDLE
WIDESPREAD LAVATORY MODELS
MT128B
INSTALLATION INSTRUCTIONS
THESE INSTRUCTIONS MUST BE
LEFT WITH HOMEOWNER
Always turn water OFF before disassembling the faucet. Open faucet handles to relieve water
pressure and to insure that COMPLETE water shut-off has been accomplished.
Before turning water on during either rough-in or trim-out, make sure the cartridge retainer nuts are in place. The cartridges and
cartridge retainer nuts were properly installed and tested before leaving the factory. Although it is unlikely, it is nevertheless possible that through the handling of the faucet by any number of persons the cartridge retainer nuts may not be properly installed.
This should be carefully checked at time of rough-in and trim-out. If the cartridge retainer nuts are not properly installed, water
pressure could force the cartridge out of the faucet body. Personal injury or water damage to the premises could result.
CAUTION:
SPOUT INSTALLS THROUGH 1" MIN. DIAMETER HOLE.
VALVE INSTALLS THROUGH 1-1/8" MIN. DIAMETER HOLE.
®
1-1/2"
HANDLE INSERTS
NOT INCLUDED
2-5/8"
WASHER
2-3/4"
MOUNTING
NUT
TAILPIECE
NUT
ESCUTCHEON
1-7/8" DIAMETER
HOT
SPOUT UNION TEE
8-16" CENTERS
FLOW-RATOR
AERATOR
COLD
2-3/4"
1-1/4" MAXIMUM
DECK THICKNESS
WATER SUPPLIES
(NOT FURNISHED)
1-5/8"
5-1/8"
Page 2
MT128B
Installation Instructions
1. Fill the recess under the spout and handle escutcheons with
plumber's putty (not furnished). Place spout with spout
escutcheon in place down through the center hole. Put spout
mounting washer over spout shank. Screw on the spout mounting nut and make hand-tight.
2. Turn bottom mounting nuts on valve bodies all the way down,
for basin clearance, and drop on mounting washers. With the
valve bodies and supply tubing assembled under the sink, slide
the bodies up through the holes. Screw top mounting nuts
down until top of valve bodies are 3/8" to 7/16" from top of
deck (see illustration below).
3. Screw the handle escutcheons onto valve bodies and handtighten them until they bottom out. Screw the bottom mounting
nuts and mounting washers up against the bottom of the basin
and hand-tighten. Hold the valve bodies from turning by using
another wrench on valve body flats. Install supply tubing to
spout union tee.
4. Test the lift rod to make sure it operates freely. NOTE: If lift
rod binds against spout union tee, carefully bend spout tube
slightly outward (as illustrated on front page) to clear lift rod.
(Do not twist spout union tee).
5. Install handle hub onto handle adapter. Install handle screw
and tighten. Repeat with the other handle hub. Turn handle hub
to the RIGHT (clockwise) to "OFF" to properly position handle
hub inserts and screw them into place. Make final tightening of
all mounting nuts from below with a basin wrench. Hold the
valve bodies from turning by using another wrench on valve
body flats. Screw handle inserts (not included) into handle
hubs. Place handle hubs onto handle adapters. Install handle
screws and tighten. FOR HOT SIDE: rotate handle clockwise
until it stops, the valve is off in this position. Loosen the handle
screw two or three full turns and rotate clockwise to desired off
position. Retighten the handle screw. FOR COLD SIDE: repeat
the above steps, turning in the counterclockwise direction.
Install plug buttons into tops of handle hubs.
6. Install water supplies onto the valve body using the tailpiece
nuts supplied. Hold the body by the wrench flats. Make this
joint wrench tight. Installation is now complete. Faucet flushing is required, see Flushing Instructions.
IF HANDLE ROTATION IS REVERSED: TURN OFF BOTH
HOT AND COLD WATER SUPPLIES AND OPEN VALVE
HANDLES TO RELIEVE PRESSURE. Remove handle, car-
tridge nut and stem guide as a unit, and upper handle adapter.
Lift lower handle adapter, turn 180° and replace on cartridge
stem. Replace the upper handle adapter and install the cartridge nut and stem guide, START BY HAND DO NOT CROSS
THREAD, tighten both hot and cold nuts and stem guides firmly with an adjustable wrench. Temporarily install handles without screws and rotate hot side clockwise and cold side counterclockwise until they stop. To adjust handle orientation; note
handle position, remove handle, pull up on the upper handle
adapter, replace the handle without screw and turn to the
desired position. Push in on handle knob to reengage the
upper and lower handle adapter and replace handle screw and
other handle parts.
NOTE: To properly install handle escutcheon
and handle, valve bodies must be above deck
at dimensions shown.
Flushing Instructions
IMPORTANT: Pipe chips, sand, stones, and other solid objects
found in new and renovated plumbing can damage the sealing surface of the faucet cartridge and cause a leak. To avoid damage, DO
NOT TURN ON SUPPLY VALVES until instructed below.
1. After installing and connecting your new faucet, open both hot
and cold cartridges.
2. Turn on both hot and cold water supply valves and allow the
water to run for 15 seconds.
3. Turn off the hot and cold cartridges, unscrew the aerator from
the end of the spout and clean any degris from the aerator
screen.
4. Replace the aerator and check the system for leaks.
3/8" (10mm)
to 7/16" (11mm)
➤
➤
TOP OF VALVE BODY
DECK
MOUNTING NUT
Refer to this illustration for assembly and
disassembly on the following page
CARTRIDGE
ESCUTCHEON
MOUNTING NUT
MOUNTING
MOUNTING NUT
PLUG BUTTON
LEVER HANDLE
INSERT
(Not Furnished)
STEM
BUIDE
NUT
STEM
EXTENSION
CARTRIDGE
VALVE
TOP
WASHER
BOTTOM
HANDLE SCREW
HANDLE
HUB
HANDLE INSERT
(Not Furnished)
BOLT
SPOUT
UNION
TEE
WATER
SUPPLY
LINES
(Not Furnished)
ACRYLIC
O-RING
LIFT ROD
AND KNOB
ASSEMBLY
FLOW-RATOR
AERATOR
SPOUT
ESCUTCHEON
SPOUT
MOUNTING
WASHER
SPOUT
MOUNTING
NUT
PLUG BUTTON
HANDLE SCREW
CROSS HANDLE
INSERT
(Not furnished)
HANDLE HUB
MOUNTING
WASHER
MOUNTING
NUT
Page 3
Disassembly
CAUTION: Turn OFF BOTH water supplies and open BOTH faucet handles to relieve water pressure to insure that COMPLETE water shut-off
has been accomplished.
1. Remove plug button, handle screw and handle hub.
2. Loosen the cartridge ntu with an adjustable wrench and remove it and the stem guide
as a unit together with the upper handle adapter.
3. Set aside the cartridge nut and stem guide and with the handle adapter installed,
reassemble handle hub and handle screw and tighten.
4. Grasp the handle hub and pull the cartridge STRAIGHT UP and out of the valve body.
Reassembly
CAUTION: Failure to follow these instructions can cause personal injury
or water damage to the premises, or could result in a faulty installation
or damage the new cartridge.
1. Assemble upper and lower handle adapter and the handle hub to new cartridge
with the handle screw. Turn stem to the ON position, waterway holes in cartridge
are lined up.
2. Insert the cartridge straight into the valve body, press firmly while rotating the handle hub counterclockwise until you feel the key enter notch in the valve body. This
will correctly position the cartridge. Turn handle knob in both directions to insure a
stop in each direction.
3. Note handle rotation and orientation if adjustment is required (see Installation
Instruction #6 on previous page).
4. Remove handle screw and handle hub, install cartridge nut with stem guide over
the upper handle adapter, start by hand DO NOT CROSS THREAD. Firmly tighten
cartridge nut and stem guide using adjustable wrench.
5. Replace handle parts (follow illustration on previous page). Turn on water supplies.
BOLT
ACRYLIC
HANDLE
INSERT
TO INSTALLHANDLE INSERTS
1. Be sure o-ring is in place on
insert at shown.
2. Screw insert(s) into handle hub.
O-RING
O-RING
STEM
NOTCH
IN
BODY
KEY
CARTRIDGE
STEM
EXTENSION
CARTRIDGE
ESCUTCHEON
NUT
STEM
GUIDE
O-RING
Lavatory Lift Rod and Waste Assembly
1. Thoroughly clean around drain opening in lavatory sink. Apply 1/4 inch bead of
plumber's putty (not furnished) around the bottom side of drain seat (as shown).
2. Apply pipe joint compound (not furnished) to top threaded end of the drain body.
Slip drain body up through the drain opening and screw seat onto the drain body.
3. Position the drain body (with pivot rod opening extending rearward) and tighten
mounting nut until the drain body is snug. Wipe excess plumber's putty from the
drain seat area. Apply pipe joint compound (not furnished) to top threaded end of
tailpipe and screw into drain body. Tighten firmly by hand.
4. Position drain plug in either of the following ways:
A. VANDALPROOF - This design is to prevent unauthorized removal of the drain
plug. Unscrew the pivot nut and remove the pivot rod. Inside the drain body position the pivot rod through the drain plug hole as shown in the illustration below.
Screw the pivot nut back on the drain body. DO NOT OVERTIGHTEN.
B. EASY REMOVAL - This design is for quick removal of drain plug for cleaning.
Just drop in the drain plug as shown in the illustration below.
A. VANDALPROOF
PIVOT
ROD
VANDALPROOF
POSITION
B. EASY REMOVAL
POSITION FOR
EASY REMOVAL
PIVOT
ROD
5. Install lift rod, with knob attached, into top of spout as shown. Secure lift rod strap
to bottom end of lift rod as shown. With pivot rod in the down position, assemble
strap to pivot rod using the spring clip. The strap will have to be bent to reach the
pivot rod on some installations. Adjustment may be required so lift rod clears
spout tube and connection.
6. With the drain plug in full open position, adjust lift rod and knob to clear faucet and
tighten lift rod strap screw.
MAX. 2-1/2"
MOUNTING
8"
COMPOUND
TAPE (NOT
FURNISHED)
DRAIN
SEAT
MIN. 1-1/2"
NUT
DRAIN
BODY
PIPE
JOINT
OR
TAPE
PLUG
2-1/8"
1-1/2"
VANDAL-
PROOF
HOLE
COMPOUND
TAPE
TAPE (NOT
FURNISHED)
1-1/4"
AND KNOB
SPOUT
PIPE
JOINT
OR
BOTTOM
GASKET
WASHER
PIVOT
NUT
PIVOT
ROD SEAT
TAILPIECE
LIFT ROD
FLAT
LIFT
ROD
STRAP
LIFT ROD
STRAP
SHOWN
IN BENT
POSITION
STRAP
SCREW
SPRING
CLIP
PIVOT
LIFT
ROD
ROD
Page 4
MT128B SEP 95
© Copyright 1995
Moen Incorporated
Printed in U.S.A.
Moen Incorporated 25300 Al Moen Drive, North Olmsted, OH 44070-8022, U.S.A.
In Canada:
Moen Inc. 2816 Bristol Circle, Oakville, Ontario L6H5S7
HELPLINE:
For answers to any product, installation,
replacment parts or warranty questions,
call our consumer helplines.
In the U.S., toll free:
1-800-321-6636
In Canada call:
Toronto, 905-829-3400
Rest of Canada, 1-800-465-6130
Consumer Information
Faucets made of leaded brass alloys may contribute small amounts of lead to water that is allowed to stand in contact with the brass. The amount of
lead contributed by any faucet is highest when the faucet is new. The following steps may reduce potential exposure to lead from faucets and other
parts of the plumbing system:
• Always run the water for a few seconds prior to use for drinking or cooking.
• Use only cold water for drinking or cooking.
• If you wish to flush the entire plumbing system of water that has been standing in the pipes or other fittings, run the cold water until the temperature
of the water drops, indicating water coming from the outside main.
• If you are concerned about lead in your water, have your water tested by a certified laboratory in your area.
®
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