Xylem GOULDS Prime Line Marlow Series Manual

Marlow Series
Prime Line®
Self-Priming Centrifugal Pumps
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Motor Driven: Long-Coupled Models 4E and 6E
Long-Coupled and Close-Coupled Models 2P, 3P, 4P
INSTRUCTION MANUAL
IM191R05

2
OWNER’S INFORMATION
Pump Model Number:
Pump Serial Number:
Dealer:
Dealer Telephone Number:
Date of Purchase:
Date of Installation:
TABLE OF CONTENTS
Section Page
Recommended Precautions .............................................................................................................................................. 3
Operating Instructions ....................................................................................................................................................... 4
Coupling Alignment............................................................................................................................................................ 4
Piping ................................................................................................................................................................................... 5
Wiring and Grounding ....................................................................................................................................................... 6
Rotation ................................................................................................................................................................................ 6
Impeller Running Clearance .............................................................................................................................................. 6
Operation ............................................................................................................................................................................. 6
Disassembly ......................................................................................................................................................................... 7
Reassembly........................................................................................................................................................................... 7
Maintenance......................................................................................................................................................................... 8
Troubleshooting................................................................................................................................................................. 10
Repair Parts.........................................................................................................................................................................11
Commercial Warranty........................................................................................................................................................16

3
CONGRATULATIONS
You are now the owner of a Goulds Water Technology
pump. This pump was carefully inspected and
subjected to nal tests before releasing for shipment.
In order to have maximum performance, please follow
the simple instructions in this manual.
RECOMMENDED PRECAUTIONS
1. If there is a possibility of air being entrapped in
the pump casing, install an automatic venting
device to bleed off the air.
2. All electric motors require a magnetic starter with
current over-load protection.
3. Drain casing completely when servicing pump
handling volatile or harmful liquids. SEE
CAUTION.
4. Avoid system pressures that may exceed one and
a half times the operating point selected from the
pump performance curve.
5. Should the uid temperature rise more than 50ºF
above ambient, expansion joints must be installed
on both the suction and discharge ports to relieve
any stress on the pump casing.
6. All electrical wiring of the pump installation must
be done by a licensed electrician who will observe
all national and local electrical codes.
7. No modications, additions or deletions should be
made to the pump, without prior approval of the
factory.
8. After servicing the pump, always install the
coupling guards and other safety devices as
originally found prior to disassembly.
9. In systems where shock wave pressures may be
generated, protective devices such as check
valves/gate valves etc., must be installed on
discharge line to prevent shock pressures from
entering the pump casing.
10. In systems containing discharge check valves, gate
valves, etc., pump will not prime against a closed
valve. Check the discharge valves making sure
they are open before attempting to prime pump.
11. Overheated pumps are dangerous. Burns or
explosion could occur due to steam pressure.
Operation pumps with suction and discharge
closed is one cause of severe overheating.
If over-heating of pump casing occurs:
1. Stop pump immediately.
2. Allow pump to cool.
3. Slowly and cautiously vent pump.
12. Do not use in a combustible atmosphere.
13. Make daily checks of the tightness of suction
and discharge pipe, drain, lter plug and pump
gaskets. Operation should not proceed until all of
the above items have been checked and are tight.
14. This pump is designed primarily for water use.
Before pumping other liquids, READ CAREFULLY
THE FOLLOWING WARNING.
THE PERFORMANCE OF GOULDS
WATER TECHNOLOGY PUMPS
IS BASED UPON CLEAR, COLD,
FRESH WATER WITH SUCTION
CONDITIONS AS SHOWN ON
THE PERFORMANCE CURVE.
IF USED TO PUMP OTHER
LIQUIDS, PUMP PERFORMANCE
MAY DIFFER FROM RATED
PERFORMANCE BASED ON THE
DIFFERENT SPECIFIC GRAVITY,
TEMPERATURE, VISCOSITY, ETC.
OF THE LIQUID BEING PUMPED.
A STANDARD PUMP MAY NOT BE
SAFE FOR PUMPING ALL TYPES
OF LIQUIDS, SUCH AS TOXIC,
VOLATILE OR CHEMICAL LIQUIDS,
OR LIQUIDS UNDER EXTREME
TEMPERATURES OR PRESSURES.
Please consult Goulds Water Technology catalogs
as well as local codes and general references to
determine the appropriate pumps for your particular
application. Since it is impossible for us to anticipate
every application of an Goulds Water Technology
pump, if you plan to use the pump for a non-water
application, consult Goulds Water Technology
beforehand to determine whether such application
may be proper or safe under the circumstances.
Failure to do so may result in property damage or
personal injury.
SAFETY INSTRUCTIONS
TO AVOID SERIOUS OR FATAL PERSONAL
INJURY OR MAJOR PROPERTY DAMAGE, READ
AND FOLLOW ALL SAFETY INSTRUCTIONS IN
THE MANUAL AND ON THE PUMP.
This is a SAFETY ALERT SYMBOL. When
you see this symbol on the pump or in
the manual, look for one of the following
signal words and be alert to the potential
for personal injury or property damage.
Warns of hazards that WILL cause
serious personal injury, death or major
property damage.
Warns of hazards that CAN cause serious
personal injury, death or major property
damage.
Warns of hazards that CAN cause per-
sonal injury or property damage.
NOTICE: INDICATES SPECIAL INSTRUCTIONS
WHICH ARE VERY IMPORTANT AND
MUST BE FOLLOWED.
THIS MANUAL IS INTENDED TO ASSIST IN THE
INSTALLATION AND OPERATION OF THIS UNIT.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND
WARNINGS PRIOR TO PERFORMING ANY WORK
ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
WARNING
Hazardous fluids can
cause fire, burns
or death.
DANGER
WARNING
CAUTION

4
THE INSTALLATION OF THE PUMP
SHALL INCLUDE ADEQUATE
DRAINAGE OR LOCATED SUCH THAT OTHER EQUIP-
MENT OR PROPERTY WOULD NOT BE DAMAGED IN
THE EVENT OF ANY LEAKAGE. THE PUMP SHOULD
NOT BE INSTALLED ABOVE EQUIPMENT OR PROP-
ERTY UNLESS ADEQUATE DRAINAGE IS PROVIDED.
FAILURE TO COMPLY WITH THIS WARNING COULD
RESULT IN PROPERTY DAMAGE.
OVERTIGHTENING OF THE CASING
FASTENERS COULD DAMAGE THE
FASTENER, RESULTING IN LEAKAGE AND
PROPERTY DAMAGE.
OPERATING INSTRUCTIONS
NOTICE: INSPECT UNIT FOR DAMAGE AND
REPORT ALL DAMAGE TO CARRIER
IMMEDIATELY.
LOCATION
By placing your Goulds Water Technology pump on a rm, level
foundation, you reduce harmful vibrations and unnecessary
noise. Your Goulds Water Technology pump is self-priming, must
be mounted horizontally and may be located above the source
of liquid supply. Best pump operation is obtained by locating the
pump as close as possible to the liquid being handled. Keep in
mind a pump can push liquid more effectively than it can pull or
draw liquid.The actual priming ability of a pump depends upon
many factors such as the size and layout of the piping, the type
of liquid and its temperature, the specic pump selected and its
speed of operation. Additional priming information is given in the
Goulds Water Technology Sales Catalog. Provide the necessary
space around the pump for future inspection and servicing of the
unit. Protect the pump and piping from freezing temperatures.
CONNECTIONS
Connections at the easily accessible suction and discharge
ports can be made either with hose or pipe.The use of
strongly reinforced suction hose will prevent collapsing of
the hose during operation. New hose washers should be
used at the couplings to prevent trouble-causing leaks.
All hose or pipe should be independently supported to
eliminate excessive strain on the pump.
ROTATION
Your pump is specically designed to rotate in a
clockwise direction when viewed from the coupling end
of the pump shaft. Three phase motors can rotate in
either direction. Interchanging any two leads of a three
phase will reverse the rotation. Check your rotation. (Also
refer to cast rotation arrow on pump casing.)
SPLASHING OR IMMERSING
OPEN DRIP PROOF MOTORS
IN FLUID CAN CAUSE FIRE,
SHOCK, BURNS OR DEATH.
OPERATION AT OR NEAR ZERO
FLOW CAN CAUSE EXTREME
HEAT, PERSONAL INJURY OR
PROPERTY DAMAGE.
NOTICE: NO NOT RUN PUMP DRY OR SEAL
DAMAGE WILL RESULT.
• After stabilizing the system at normal operating conditions,
check the piping. If necessary, adjust the pipe supports.
• On frame-mounted units, coupling alignment may have
changed due to the temperature differential between
pump and motor. Recheck alignment following pro-
cedures and hazard warnings in “COUPLING ALIGN-
MENT” section of this manual.
FRAME-MOUNTED UNITS
• A at substantial foundation surface MUST be provided
to avoid distortion and/or strain when tightening the
foundation bolts. A rubber mounting is acceptable to
reduce noise or excessive vibration.
• Tighten motor hold-down bolts BEFORE connecting
piping to pump.
Figure 1
• It is recommended that the baseplate be grouted to a
foundation with solid footing. Refer to Figure 1.
• Place unit in position on wedges located at four points,
two below approximate center of driver and two below
approximate center of pump. Adjust wedges to level unit.
Level or plumb suction and discharge connections.
• Make sure bedplate is not distorted and nal coupling
alignment can be made within the limits of movement of
motor and by shimming, if necessary.
• Tighten foundation bolts nger tight and build dam
around foundation. Pour grout under bedplate making
sure the areas under the pump and motor feet are lled
solid. Allow grout to harden 48 hours before fully tighten-
ing foundation bolts.
• Tighten pump and motor hold-down bolts before align-
ing shaft or connecting the piping to pump.
• Allow grout to harden for 48 hours before tightening 4
foundation bolts.
CLOSE-COUPLED UNITS
• Units must be installed horizontally.
• The motor feet MUST be bolted to a substantial surface
that is capable of complete and rigid support for the
pump and motor.
WARNING
Hazardous voltage
can shock, burn or
cause death.
Extreme heat can
cause personal injury
or property damage.
WARNING
Finished grouting
(1/4") Grout hole Base
Leveling wedges or shims—left in place
Top of foundation—
clean and wet down
Sleeve
Washer
Lug
(1/2 to 3/4")
Allowance
for leveling
Wood
frame
Grout
WARNING
WARNING

5
Hazardous machinery
can cause personal
injury or death.
WARNING
Figure 5 Figure 6
H min.
DD
H min.
D D
1.5D
min.
3.0D
min.
H min.
D min.
2
16
15
14
13
12
11
11
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
H = Min. Submergence in feet
H
10 12 13 14 15 16
V
V = Velocity in feet per second
= GPM x 0.321
Area
GPM x 0.4085
D
2
Figure 3 Figure 4
COUPLING ALIGNMENT
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
SEVERE PERSONAL INJURY.
FRAME-MOUNTED UNITS ONLY
• Alignment MUST be checked prior to running. See
Figure 2.
Figure 2
• Tighten all hold-down bolts before checking alignment.
• If realignment is necessary, always move the motor. Shim
as required.
• Parallel misalignment, shafts with axis parallel but not
concentric. Place dial indicator on one hub and rotate this
hub 360°while taking readings on the outside diameter
of the other hub. Parallel alignment is achieved when
reading is 0.010" (0.254 mm) TIR, or less.
• Angular misalignment, shaft with axis concentric but not
parallel. Place dial indicator on one hub and rotate this
hub 360°while taking readings on the face of the other
hub. Angular alignment is achieved when reading is
0.020" (0.508 mm) TIR, or less.
• Final alignment is achieved when parallel and angular re-
quirements are satised with motor hold-down bolts tight.
NOTICE: ALWAYS RECHECK BOTH ALIGNMENTS
AFTER MAKING ANY MECHANICAL
ADJUSTMENTS.
PIPING
• Piping should be no smaller than pump’s discharge and
suction connections and kept as short as possible, avoid-
ing unnecessary ttings to minimize friction losses.
• All piping MUST be independently supported and MUST
NOT place any piping loads on the pump
NOTICE: DO NOT FORCE PIPING INTO PLACE
AT PUMP SUCTION AND DISCHARGE
CONNECTIONS.
• All pipe joints MUST be airtight.
PIPING – SUCTION
• For suction lifts over 10 ft. (3 m) and liquid temperatures
over 120° F (49°C), consult pump performance curve for
net positive suction head required (NPSHR).
• If a pipe size larger than pump suction is required, an
eccentric pipe reducer, with the straight side up, MUST
be installed at the pump suction.
• If pump is installed below the liquid source, install a gate
valve in the suction for pump inspection and maintenance.
NOTICE: DO NOT USE THE GATE VALVE TO
THROTTLE PUMP. THIS MAY CAUSE LOSS
OF PRIME, EXCESSIVE TEMPERATURES
AND DAMAGE TO PUMP, VOIDING
WARRANTY.
• If the pump is installed above the liquid source, the fol-
lowing MUST be provided:
• To avoid air pockets, no part of the piping should be
above the pump suction connection.
• Slope the piping upward from liquid source.
• Use a foot valve or check valve ONLY if necessary for
priming or to hold prime during intermittent duty.
• The suction strainer or suction bell MUST be at least
3 times the suction pipe diameter area.
• Insure that the size and minimum submergence over suc-
tion inlet is sufcient to prevent air from entering pump
through a suction vortex. See Figures 3 through 6.
PIPING – DISCHARGE
• Install a check valve suitable to handle the ow, liquids and
to prevent backow. After the check valve, install an appro-
priately sized gate valve to be used to regulate the pump
capacity, pump inspection and for maintenance.
• When required, pipe increaser should be installed be-
tween the check valve and the pump discharge.
AIR RELEASE LINE (4E & 6E)
It is essential to allow the air to escape from the discharge
line to atmosphere during the initial priming and re-
priming cycle. In systems with high discharge heads, it may
be advisable to install an air release line between the pump
casing and discharge check valve to aid their venting.The
size of the air release line is selected such that it does not
signicantly affect the discharge capacity. You may install
an air release line through the ller plug hole if necessary.
However, the preferred location is in the discharge line
– between the pump and the discharge check valve –
as close to the discharge check valve as possible. We
recommend the following line sizes for the following
pumps:
4" pump – ¾" line
6" pump – 1" line
NOTES:
1. This line size may be increased or decreased depending
on application.
Parallel
Angular

6
Hazardous machinery
can cause personal
injury or death.
WARNING
WARNING
Hazardous voltage
can shock, burn or
cause death.
WARNING
Hazardous voltage
can shock, burn or
cause death.
WARNING
Hazardous
voltage
2. Direct the air release line back into the sump (not into
the pump suction line). Leave the end of the line open to
atmosphere. Do not submerge into the liquid being
pumped.
3. The air release line may clog, particularly if a shut-off
valve is installed in the line and is closed during
operation. If this condition occurs, either use a larger line
or leave the shut-off valve open during pumping
operation. To aid in maintaining air release lines, t
them with crosses instead of elbows.
WIRING AND GROUNDING
Install, ground and wire according
to local and National Electrical Code
Requirements.
Install an all leg electrical power
disconnect switch near the pump.
Disconnect and lockout electrical
power before installing or servicing
the pump.
Electrical supply MUST match
pump’s nameplate specications.
Incorrect voltage can cause re, dam-
age motor and void the warranty.
Motors without built-in protection MUST be provid-
ed with contactors and thermal overloads for single
phase motors, or starters with heaters for three
phase motors. See motor nameplate.
• Use only copper wire to motor and ground. The ground
wire MUST be at least as large as the wire to the motor.
Wires should be color coded for ease of maintenance.
• Follow motor manufacturer’s wiring diagram on the mo-
tor nameplate or terminal cover carefully.
FAILURE TO PERMANENTLY GROUND
THE PUMP, MOTOR AND CONTROLS
BEFORE CONNECTING TO ELECTRICAL
POWER CAN CAUSE SHOCK, BURNS
OR DEATH.
ROTATION
NOTICE: INCORRECT ROTATION MAY CAUSE
DAMAGE TO THE PUMP AND VOIDS
THE WARRANTY.
• Correct rotation is right-hand, CLOCKWISE when viewed
from the motor end. For frame mounted units, switch
power on and off quickly to observe rotation. On close
coupled units, remove motor end plug or cover to ob-
serve rotation.
• To reverse three phase motor rotation, interchange any
two power supply leads.
IMPELLER RUNNING CLEARANCE (6E1 ONLY)
(Applicable for models with open impellers)
The impeller running clearance, the distance between
the impeller vanes and diffuser is adjusted at the
factory prior to shipment to .020"-.030". To adjust
this clearance in the eld, shut down the pump,
disconnect power supply to the pump and use the
following instructions.
1. Unscrew three jack-screws (112), jam-nuts (111)
and bearing carrier capscrews (45).
2. Adjust the jack-screws and capscrews until the
impeller just touches the diffuser (46) (slight rub).
Tighten the jam nuts.
3. Measure the gap between bearing housing
surface (coupling END) and bearing carrier ange.
4. Adjust jack-screws, jam-nuts and capscrews to pull
out the rotating assembly, until the gap between
bearing housing surface and bearing carrier
ange measures .020"-.030" more than previously
measured gap.
NOTE: Tightening the jack-screws will increase the
front clearance and tightening the capscrews will
decrease the front clearance.
Tighten one set of screws and loosen the other to go
in the direction required. Tighten locknut (111).
NOTE: Maximum allowable bearing carrier (110) pull
back movement is 1⁄8", (i.e. from the condition when
impeller is “just” touching the diffuser you can push
back the bearing carrier assembly by 1⁄8".
OPERATION
DO NOT OPERATE FRAME MOUNTED
OR SAE UNITS WITHOUT SAFETY
GUARDS IN PLACE OR SEVERE
PERSONAL INJURY MAY RESULT.
SPLASHING OR IMMERSING OPEN
DRIP PROOF MOTORS IN FLUID CAN
CAUSE FIRE, SHOCK, BURNS OR
DEATH.
OPERATION AT OR NEAR ZERO
FLOW CAN CAUSE EXTREME HEAT,
PERSONAL INJURY OR PROPERTY
DAMAGE.
NOTICE: NO NOT RUN PUMP DRY OR SEAL DAMAGE
WILL RESULT.
STARTING
Follow the motor manufacturer’s instructions carefully.
Before starting ll the pump casing with liquid
through the priming plug provided. Your pump has
been designed to prime itself in a few minutes. High
suction lifts require additional time and reduce the
performance of the pump. Should you have difculty,
refer to the “Troubleshooting Guide” table.
Goulds Water Technology self-priming pumps prime
and reprime themselves providing the casing is
lled with liquid. Should you lose this liquid from the
casing accidentally or by draining purposely, it will be
necessary to rell it with liquid before starting.
2P through 4P – Check grease in the bearing housing
cavity. Units are shipped with grease but should be
checked before starting. (Refer to Lubrication section
for more details.)
Extreme heat can
cause personal injury
or property damage.
WARNING

7
4E and 6E – Units are shipped without oil in the
bearing housing cavity. Fill this cavity with the proper
amount and proper grade of oil. (Refer to Lubrication
section for more details.)
Check drive coupling alignment. (Refer to Coupling
Alignment section for instructions.)
Check motor wiring.
1. All electrical work must be done
by a licensed electrician.
2. Before working on pump and/or
motor be certain the electrical
power is off at the main junction
box.
3. Disconnect the fuse or circuit
breaker and have the main switch
tagged “DO NOT ENERGIZE THIS
SWITCH, PERSONNEL WORKING
ON EQUIPMENT.”
4. Some motors are equipped with built-in thermal
overloads to shut off the motors in the event the
temperature becomes excessive (as a result of
mechanical or electrical problems, such as low
voltage, poor ventilation, overloaded lines, etc.).
These motors will restart automatically as the
motor cools down. For safety sake, DO NOT work
on any motor without shutting off the electricity.
5. Never operate an electric motor driven pump
without properly grounding the motor frame.
Serious injury or death by electrocution could
result.
6. Drain pump casing completely before taking
pump apart. It is advisable to ush the inside of
the casing with water before taking pump apart.
7. Never start pump before putting
back all necessary guards such as
coupling guard.
• After stabilizing the system at normal operating con-
ditions, check the piping. If necessary, adjust the pipe
supports.
• On frame-mounted units, coupling alignment may have
changed due to the temperature differential between
pump and motor. Recheck alignment following pro-
cedures and hazard warnings in “COUPLING ALIGN-
MENT” section of this manual.
SEASONAL SERVICE
• To REMOVE pump from service, remove drain plug and
drain all unprotected piping.
• To RETURN pump to service, replace drain plug using
Teon™ tape or equivalent on male threads.
• Reconnect suction line if removed, examine union and
repair if necessary.
• Refer to OPERATION section of manual.
DISASSEMBLY
• Follow ALL warnings and instructions in the “MAINTE-
NANCE” section of this manual.
• Close-coupled units: Remove motor hold-down bolts.
• Frame-mounted units: Remove coupling guard, spacer,
coupling and frame hold-down bolts.
LIQUID END
1. Remove casing bolts (47).
2. Remove back pull-out assembly from casing (1).
Discard gasket (8).
3. Remove diffuser and o-ring.
NOTICE: DO NOT INSERT SCREWDRIVER BETWEEN
IMPELLER VANES TO PREVENT ROTATION.
4. On close-coupled units, remove motor end plug or
cover to expose screwdriver slot or ats on end of
motor shaft.
5. While restraining shaft with an appropriate tool (close-
coupled units) or with a strap wrench (frame-mounted
units) remove impeller bolt/nut (4). Impeller bolt/nut
may need to be heated with torch to remove. Discard.
NOTICE: EXERCISE CAUTION WHEN HANDLING
HOT IMPELLER BOLT/NUT.
6. Remove impeller washer (5).
7. Insert two pry bars, 180°apart, between impeller and
seal housing (10). CAREFULLY pry off impeller.
8. Remove impeller key (37).
9. Remove seal housing bolts (33) and seal housing (10)
pulling with it the mechanical seal assembly. Discard
seal assembly.
10. Inspect shaft sleeve (24). If badly scored, remove by
heating with torch. Discard.
11. Push out the mechanical seal stationary seat from the
seal housing. Discard.
NOTE: Check impeller and diffuser for any broken vanes or
wear. Replace it if necessary. Also check diffuser o-ring (7).
Replace if damaged.
DISASSEMBLY OF BEARING FRAME (P-SERIES)
1. Remove deector (63) from shaft.
2. Remove bearing cover (80).
3. Remove shaft assembly from frame.
4. Remove lip seals (69, 81) from bearing frame (70) and
bearing cover (80) if worn. Discard.
5. Remove retaining ring (71).
6. Use bearing puller or arbor press to remove ball
bearings (74, 78).
DISASSEMBLY OF BEARING FRAME (4E AND 6E)
1. Drainbearinghousingoilcavitybyremovingdrainplug
(28) for oil lubrication bearing housing.
2. Remove capscrews (33) to disassemble bearing
housing (31) from bracket (67).
NOTE: Check gasket (8) if worn, replace it.
3. Remove the shaft assembly with bearings and bearing
carrier (110) out of the bearing housing (31).
4. Check both lip seals (42), replace if necessary.
5. Remove the snap ring (108) from the shaft (38).
6. Check the bearings. If they feel rough when turning by
hand, replace the bearings.
WARNING
Hazardous voltage
can shock, burn or
cause death.
Hazardous Machinery
WARNING

8
Hazardous fluids can
cause personal injury
or property damage.
WARNING
WARNING
Hazardous voltage
can shock, burn or
cause death.
Hazardous pressure can
cause personal injury,
property damage or death.
CAUTION
REASSEMBLY
• All parts should be cleaned before assembly.
NOTICE: O-RING SHOULD BE REPLACED AFTER ANY
DISASSEMBLY OF UNIT.
BEARING FRAME
1. Replace lip seals if removed.
2. Replace ball bearings if loose, rough or noisy when
rotated.
3. Check shaft (38) for runout. Maximum permissible is
0.002" (0.05 mm) TIR.
4. Refer to the “MAINTENANCE” section of this manual
for bearing frame lubricating instructions.
5. Refer to the “MAINTENANCE” section of this manual
for bearing replacement of the E-Series bearing frame.
LIQUID END
1. Inspect shaft removing any debris or burrs.
2. Treat shaft with LOCQUIC®Primer “T”, or equivalent,
following manufacturer’s instructions carefully.
3. When replacing shaft sleeve, spray new shaft sleeve’s
bore with LOCQUIC®Primer “T”, or equivalent. Let parts
dry and then apply LOCTITE®#271 on the same
surfaces. Slide new sleeve, I.D. chamfer end rst, over
shaft with a twisting motion, wipe off excess. Let cure
according to instructions.
NOTICE: MECHANICAL SEAL MUST BE REPLACED
WHENEVER SEAL HAS BEEN REMOVED.
FOLLOW SEAL MANUFACTURER’S
INSTRUCTIONS CAREFULLY. FOR PACKED
BOX PUMPS SEE “PACKED BOX
INSTRUCTIONS”.
4. The stationary seal seat may be dipped in water to ease
installation. Place stationary seal seat squarely into seal
housing bore. Cover the polished face of the seat with
a thin piece of cardboard or paper towel. Press seat
rmly into bore using a round piece of plastic or wood
that disperses the force over the entire seal face. NOTE:
If mechanical seal is supplied with a spring retainer,
remove and discard the retainer.
5. Place adapter, concave face pointing up, over motor/
frame shaft and lower it onto the mounting face.
6. Install seal housing on adapter. Exercise care in that the
motor shaft does not dislodge or damage seal seat.
7. Fully and squarely install the rotary assembly of seal
against the stationary seat.
NOTICE: REPLACE IMPELLER BOLT/NUT AND
WASHER WHENEVER IMPELLER IS REMOVED.
8. Install impeller key in shaft keyway. Mount impeller on
shaft and push until it bottoms. Hold in place.
9. Install new impeller washer.
Reverse disassembly procedure to reassemble the pump.
NOTE: Make sure all gaskets, o-ring, rubber check valve
and seal assembly are in good condition before reassembly.
HYDROTEST
NOTE: If hydrostatic test is required in the eld, it
must be performed with check valve removed or with
partially open check valve.
The hydrotest pressure is generally 1½ times the
working pressure.
To set up the pump for hydrostatic test follow these
instructions:
Before hydrotesting the pump all air must be removed
from the suction priming chamber. This is done by:
(a) Removing ¼" pipe plug from top of the suction
inlet (50).
(b) Install a ¼" pet cock valve (not supplied by Goulds
Water Technology) in place of pipe plug.
(c) With pet cock open ll casing (1) with uid being
pumped through ller plug (129) provided on top
of casing. Do not close pet cock until all air is out
of casing (as shown by a solid stream of liquid
coming out of pet cock).
(d) Close pet cock, reinstall ller plug. Unit is now
ready for hydrotest.
MAINTENANCE
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE SHOCK,
BURNS OR DEATH.
FAILURE TO RELIEVE SYSTEM
PRESSURE AND DRAIN SYSTEM
BEFORE ATTEMPTING ANY
MAINTENANCE CAN CAUSE
PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
IF PIPING HAZARDOUS OR TOXIC
FLUIDS, SYSTEM MUST BE FLUSHED
PRIOR TO PERFORMING SERVICE.
CLOSE-COUPLED UNITS
• Bearings are located in and are part of the motor. For
lubrication information, refer to motor manufacturer’s
instructions.
FRAME-MOUNTED UNITS
P-Series
• S Frame has greased for life bearings. No regreasing is
possible or necessary.
• ML frame should be regreased every 2,000 hours or at a
three month interval, whichever occurs rst. Use a #2
sodium or lithium based grease. Fill until grease comes
out of relief ttings, or lip seals, then wipe off excess.
E-Series
• Set and maintain oil level as shown below.
MAX.
MIN.
SIGHT WINDOW
1/
4"
Approximately
52 uids ounces.

9
• Follow motor and coupling manufacturer’s lubrication
instructions.
• Recheck coupling alignment.
SHAFT AND BEARING REPLACEMENT (E-Series)
If shaft or bearing replacement is necessary, follow
these instructions. (Shut down the pump and
disconnect power supply to the pump before working
on pump.)
1. Install the front (impeller end) bearing (36) on
the shaft (38).
2. Slide the carrier retaining ring (106) onto the
shaft (38) over the coupling end.
3. Install the rear (coupling end) bearing (117) on
the shaft (38).
4. Install the retaining ring (108) onto the shaft (38).
Add shims (107) between the retaining ring (108)
and the rear bearing (117) if required to lock the
rear bearing (117) on to the shaft axially.
5. Install O-ring (109) into the O.D. groove of the
bearing carrier (110).
6. Slide the bearing carrier (110) with o-ring over the
rear bearing such the rear bearing slides into the
bearing carrier (110). Install the retaining ring (106)
in place inside bearing carrier.
7. Insert shaft assembly with bearings and carrier into
the housing (31).
SEAL INSTALLATION INSTRUCTION
Seal is precision made. Handle carefully. Do not scratch
seal face.
1. Remove old seal. Clean shaft and all seal cavity
surfaces thoroughly.
2. Coat carbon washer, inside surface of rubber boot,
and rubber o-ring with a clean oil lm.
3. Push stationary assembly into cavity, seating it
rmly and squarely with nger pressure only. DO
NOT use screwdriver or any tool which might
damage the stationary assembly.
4. Slide bellows assembly on shaft as far as possible,
pushing against rubber tail section only. Ease
bellows assembly into place. DO NOT DRIVE
WITH A HAMMER.
5. Install bellows spring with one end on ange of
metal seal ange. Some seal assemblies use a
tapered spring. On these, the smaller diameter ts
on metal seal ange.
6. Complete assembly of other pump parts.
A short “run-in” period may be necessary to provide a
tight seal joint.
CAUTION: Never run a seal dry for any length of time.
NOTE: Please make note that all “P” Series pumps are
equipped with shaft sleeve.
SHAFT SLEEVE INSTALLATION (2P, 3P, 4P ONLY)
Follow these instructions when applying loctite
between the shaft sleeve and shaft surface.
(a) Surface to be coated with loctite must be free
of dirt and grease. Wash with degreasing solvent if
necessary.
(b) Spray these surfaces with loctite primer type “T”.
DO NOT OVERSPRAY. The thinnest lm of primer
is best. Avoid skin contact or repeated breathing
of primer vapor. Allow three to four minutes for
primer to dry.
(c) Apply a coat (.005" or less thick) of loctite 271
(red) to both shaft and inside of shaft sleeve.
(d) Slide shaft sleeve over the shaft all the way against
shaft shoulder. Make sure the chamfer on the I.D.
of the shaft sleeve is towards the shaft shoulder
not towards the impeller. Allow 5-10 minutes to
cure if primer type “T” is used, or 10-15 minutes if
primer is not used to attain full strength of loctite.
NOTE:
1. An evenly applied coat of loctite on both surfaces
will prevent leakage under shaft sleeve.
2. To remove shaft sleeve heat sleeve surface to
300º-350ºF with heat gun and tap gently on sleeve
to remove.
CHECK VALVE REPLACEMENT
To remove suction check valve follow these steps:
(a) Disconnect suction piping from suction inlet (50).
(b) Remove complete assembly, which includes
suction inlet (50) and check valve assembly.
(c) Remove shoulder bolts (54) to remove check valve
keeper plate (53) and rubber check valve (51).
If any of the parts of the check valve assembly are
damaged i.e. suction inlet (50), check valve (51),
shoulder bolt (54) and keeper plate (53), replace.
Make sure the sealing surface on suction inlet (angled
surface) is not damaged.
NOTE: Latest design check valve uses shoulder bolt
(54) instead of stud, space tube, locking nut, and
washer.
Follow above procedure in reverse to reassemble the
pump.
NOTE: Make sure all gaskets, o-ring, rubber check
valve and seal assembly are in good condition before
reassemby. Replace as is necessary.
WINTER STORAGE
1. Wash off exterior of pump.
2. Flush suction line, discharge line, pump casing,
impeller and diffuser of all solids by pumping clear
liquid for a short time.
3. Drain pump casing, suction line and discharge
line.
4. If complete draining is impossible add small
amount of anti-freeze into the pump casing. Rotate
shaft for mixing.
5. If the bearings are oil lubricated drain the old oil
from bearing housing and rell housing cavity with
proper grade of oil. (Refer to Maintenance
section).
6. Seal off suction and discharge ports of pump
casing.
7. Store the units in dry clean area if possible.
8. Motor windings should be protected from
excessive moisture. Follow motor manufacturer’s
instructions.
9. Spray interior of pump casing with commercially
available anti-rust and anti-corrosion petroleum
aerosol.
10.Once a month rotate the pump shaft during
storage if possible.

10
WARNING
Hazardous voltage
can shock, burn or
cause death.
TROUBLESHOOTING
DISCONNECT AND LOCKOUT
ELECTRICAL POWER BEFORE
ATTEMPTING ANY MAINTENANCE.
FAILURE TO DO SO CAN CAUSE A
SHOCK, BURN OR DEATH.
NOTE: Before implementing any remedial action recommended in the following Troubleshooting guide, refer to
“Recommended Precautions” and “Warning” sections of this manual. The following are some common causes of
problems that may arise.
Symptoms Probable Cause Recommended Action
Will not prime No liquid in pump casing (1). Fill pump casing with liquid being
pumped.
Loose suction inlet (50). Tighten bolts.
Worn suction inlet gasket (49). Replace with new gaskets.
Loose drain plug (2). Tighten plug, use pipe dope or
Teon tape.
Worn pump shaft seal assembly (17). Install new seal.
Leaky suction line. Fix leaky suction. Check all
gasketed surface.
Worn diffuser gasket (7). Replace diffuser gasket.
Suddenly stops pumping. Clogged suction line or suction Clean suction line and strainer
strainer (if used).
Stops pumping until motor is Collapsing suction hose lining. Replace suction line and strainer.
stopped and restarted.
Slowly stops pumping. Clogged impeller (6) or (91), Clean out debris from impeller eye
diffuser (46), check valve (51) or area, suction check valve, or from
suction line. diffuser vanes.
Excessive leakage around shaft. Work pump shaft seal (17). Replace seal assembly.
Will not hold prime. Dislodged or worn check valve (51). Clean or replace check valve. Clean
sealing surface.
Small leak in suction line. Check suction hose or piping for
leak.
Worn seal or packing. Replace seal or packing.
Poor performance Impeller (6) or (91), seal Install new impeller, seal or diffuser.
assembly (17) or diffuser (46).
Motor not up to speed: (a) larger lead wires required
(a) low voltage (b) worn bearings (b) replace bearings.
Noisy operation Worn motor bearings. Replace.
Low discharge head. Throttle discharge.
Impeller clogged. Remove and clean impeller.
Worn coupling or misalignment. Replace or realign coupling.
Units operating at extreme left or Adjust for best performance point
right end of performance curve of operation.
(capacity too high or too low).
Bearings running dry. Check oil level or grease –
add if required.