537476 2 Zoeller 300 Series Centrifugal Pump Installation Instructions Fm2100 End Suction User Manual

537479 2 Zoeller 300 Series Centrifugal Pump Installation Instructions 537479_2_Zoeller 300 Series Centrifugal Pump Installation Instructions

537478 2 Zoeller 300 Series Centrifugal Pump Installation Instructions 537478_2_Zoeller 300 Series Centrifugal Pump Installation Instructions

537475 2 Zoeller 300 Series Centrifugal Pump Installation Instructions 537475_2_Zoeller 300 Series Centrifugal Pump Installation Instructions

537477 2 Zoeller 300 Series Centrifugal Pump Installation Instructions 537477_2_Zoeller 300 Series Centrifugal Pump Installation Instructions 537477_2_Zoeller 300 Series Centrifugal Pump Installation Instructions pdf pumpproducts

537480 2 Zoeller 300 Series Centrifugal Pump Installation Instructions 537480_2_Zoeller 300 Series Centrifugal Pump Installation Instructions 537480_2_Zoeller 300 Series Centrifugal Pump Installation Instructions pdf pumpproducts

User Manual: Pump 537476 2 Zoeller 300 Series Centrifugal Pump Installation Instructions

Open the PDF directly: View PDF PDF.
Page Count: 8

© Copyright 2005 Zoeller Co. All rights reserved.
1
1. Inspect all materials. Occasionally, products are damaged during shipment. If the unit is damaged, contact your dealer before using.
2. Carefully read all the literature provided to familiarize yourself with specifi c details regarding installation and use before attempting the
installation. These materials should be retained for future reference.
SECTION: 6.10.048
FM2100
0805
Supersedes
0703
INSTALLATION INSTRUCTIONS
300 Series End Suction Pumps
Notice to Installer: Instructions must remain with installation.
Product information presented
here refl ects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies. MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
(502) 778-2731 • 1 (800) 928-PUMP • FAX (502) 774-3624
visit our web site:
http://www.zoeller.com
PREINSTALLATION CHECKLIST - ALL INSTALLATIONS
SEE BELOW FOR LIST OF WARNINGS
1. To help reduce the risk of electrical shock, a proper ground
or control box of grounding type must be installed and pro-
tected by a ground fault circuit interrupter (GFCI) in accordance
with the National Electrical Code and applicable local codes.
2. DO NOT USE AN EXTENSION CORD. Extension cords that
are too long or too light do not deliver suffi cient voltage to the
pump motor. But more important, they could present a safety
hazard if the insulation were to become damaged or the connection end
were to fall into a damp or wet area.
3. Make sure the pump’s electrical supply circuit is equipped with fuses
or circuit breakers of proper capacity. A separate branch circuit, sized
according to the National Electrical Code for the current shown on the
pump name plate is recommended.
4. TESTING FOR GROUND. As a safety measure, electrical
supply should be checked for ground using an Underwriters
Laboratory Listed circuit analyzer which will indicate if the
power, neutral and ground wires are correctly connected . If they are not,
call a qualifi ed licensed electrician.
5. Installation and checking of electrical circuits and hardware
should only be performed by a qualifi ed licensed
electrician.
6. FOR YOUR PROTECTION ALWAYS DISCONNECT PUMP
FROM ITS POWER SOURCE BEFORE HANDLING. De-
energize the circuit at the control box. If the power point is
out-of-sight, lock it in the open position and tag it to prevent unexpected
application of power. Failure to do so could result in fatal electrical shock.
7. Unit must be securely and adequately electrically grounded.
This can be accomplished by wiring the unit to a ground
metal-clad raceway system or by using a separate ground wire
connected to the bare metal of the motor frame or other suitable means.
8. Do not put a valve in the discharge line without automatic
shut-off capability. Failure to install an automatic shut-off (pres-
sure switch and tank) can allow the pump to run at no fl ow
causing the pumped liquid to overheat and cause steam burns.
9. Risk of electric shock. This pump has not been investigated
for use in swimming pool areas.
10. According to the state of California (Prop 65), this product contains chemi-
cals known to the state of California to cause cancer and birth defects or
other reproductive harm.
NOTE: Repair and service should be performed by an Authorized Service Sta-
tion only (Consult factory).
NOTE: Pumps are designed to have a maximum static lift (suction head) of 25
feet (vertical distance from water surface to center line of pump) see suction
limitations.
NOTE: Pumps with the CSA CUS mark are tested to UL standard UL 778 and
certifi ed to CSA standard C22.2 No. 108.
1. Check to be sure your power source is adequate to handle the
amperage requirements of the motor as indicated on the pump or
unit I.D. tag.
2. All plumbing (discharge and intake lines) must be installed to meet
local codes.
3. Be certain the pump is completely primed before starting. Other-
wise damage may occur to the seal.
4. Be careful when touching the exterior of an operating
motor - it may be hot enough to be painful or cause
injury. 020294
SEE BELOW FOR LIST OF CAUTIONS
© Copyright 2005 Zoeller Co. All rights reserved.
2
1
2
45
7
8
6
3
9
10
CENTRIFUGAL PUMP REPAIR PARTS 300 SERIES
(For Pricing Refer To Repair Parts Price List)
Zoeller Pump Company warrants, to the purchaser and subsequent owner
during the warranty period, every new Zoeller Pump Company product to be
free from defects in material and workmanship under normal use and service,
when properly installed, used and maintained, for 1) Standard Warranty - a period
of one year from date of installation or 18 months from date of manufacturer,
whichever comes fi rst OR 2) Optional Three (3) Year Warranty - a period of
three (3) years from date of installation or 42 months from date of manufacturer
whichever comes fi rst. Parts that fail, (within standard or three (3) year optional
warranty) that inspections determine to be defective in material or workmanship,
will be repaired, replaced or remanufactured at Zoeller Pump Company’s option,
provided however, that by so doing we will not be obligated to replace an entire
assembly, the entire mechanism or the complete unit. No allowance will be made
for shipping charges, damages, labor or other charges that may occur due to
product failure, repair or replacement.
This warranty does not apply to any material that has been disassembled without
prior approval of Zoeller Pump Company, subjected to misuse, misapplication,
neglect, alteration, accident or act of God; that has not been installed, operated
or maintained in accordance with Zoeller Pump Company installation instructions;
that has been exposed to but not limited to the following: sand, gravel, cement,
mud, tar, hydrocarbons or hydrocarbon derivatives (oil, gasoline, solvents, etc),
wash towels or feminine sanitary products, etc. or other abrasive or corrosive
substances. This warranty is in lieu of all other warranties expressed or implied;
and we do not authorize any representative or other person to assume for us
any other liability in connection with our products.
Contact Zoeller Pump Company, 3649 Cane Run Road, Louisville, Kentucky
40211-1961, Attention: Customer Service Department to obtain any needed repair
or replacement of part(s) or additional information pertaining to our warranty.
ZOELLER PUMP COMPANY EXPRESSLY DISCLAIMS LIABILITY FOR
SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES OR BREACH OF
EXPRESSED OR IMPLIED WARRANTY; AND ANY IMPLIED WARRANTY OF
FITNESS FOR A PARTICULAR PURPOSE AND OF MERCHANTABILITY SHALL
BE LIMITED TO THE DURATION OF THE EXPRESSED WARRANTY.
Some states do not allow limitations on the duration of an implied warranty, so
the above limitation may not apply to you. Some states do not allow the exclusion
or limitation of incidental or consequential damages, so the above limitation or
exclusion may not apply to you.
This warranty gives you specifi c legal rights and you may also have other rights
which vary from state to state.
LIMITED WARRANTY
SINGLE PHASE HORSEPOWER 1/3 1/2 3/4 1 1-1/2 2
STAGE 111111
ITEM DESCRIPTION MODEL NO. 300-0006 301-0006 302-0006 303-0006 304-0006 305-0006
QTY. PART NO.
1 Motor, Nema J - 1PH 1 96J103 96J105 96J107 96J110 96J115 96J120
‡
Motor Access Cover
Screws, Access Cover
1
2
021301R
021302
021301R
021302
021301R
021302
021301R
021302
021301R
021302
021301R
021302l
‡
2
3
4
5
6
Slinger Washer
Mounting Ring
Hex Hd. Cap Screws 3/8 x 3/4”
Seal, Rotary w/Spring
Impeller
Ring, Square Cut †
1
1
4
1
1
1
126905
020290
*
131100
130403
132583
126905
020290
*
131100
126900
132583
126905
020290
*
131100
127805
132583
126905
020290
*
131100
127804
132583
126905
020290
*
131100
127806
132583
126905
020290
*
131100
127848
132583
7
‡
8
Body Assembly
Suction Clearance Ring
Pipe Plugs, 1/8” NPT
1
1
4
020288
127869
020288
127869
020289
125842
020289
125842
020289
125842
020289
125842
9
10
Hex Hd. Cap Screws 3/8 x 1”
Base
4
1
*
125855
*
125855
*
125855
*
125855
*
125855
*
125855
(*) Standard hardware item (‡) Not shown (†) For pumps with paper gasket, replace with part number 127782
(∆) Kit includes: Access cover, screws & wiring diagrams
© Copyright 2005 Zoeller Co. All rights reserved.
3
Dimensions (In Inches) Chart A
HP A B C D E F G H J K
1/3 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 13-1/4 3-7/8
1/2 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 13-1/2 3-7/8
3/4 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 14 3-7/8
1 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 14-1/2 3-7/8
1-1/2 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 15-1/8 3-7/8
2 4 4-5/8 3-11/16 4-13/16 9-3/16 2-1/8 8-1/4 8-1/8 15-5/8 3-7/8
Figure 1 - 300 Series Single Stage Booster Pump
IL0396
H
J
F
1-1/4” Discharge 1-1/2” Suction
D
E
A C
K
B
G
Motor Data Chart B
HP PH VOLTS HZ RPM
MOTOR
VOLTAGE
(FACTORY)
CONNECT.
SERVICE FACTOR
MOTOR AMPS SINGLE
PHASE
LOCKED ROTOR
AMPS SINGLE
PHASE KVA
115V 230v 115V 230v
1/3 1 115/230 60 3450 115V 8.6 4.3 26.0 13.0 K
1/2 1 115/230 60 3450 115V 13.0 6.5 36.0 18.0 K
3/4 1 115/230 60 3450 115V 14.0 7.0 52.0 26.0 K
1 1 115/230 60 3450 230V 18.0 9.0 70.0 39.0 L
1-1/2 1 115/230 60 3450 230V 21.0 10.5 98.0 49.0 J
2 1 115/230 60 3450 230V 25.0 12.5 116.0 58.0 H
© Copyright 2005 Zoeller Co. All rights reserved.
4
IL0413
Figure 2
To size pressure tank properly, match the
drawdown of the tank to the capacity of the
pump.
(*) For manual operation, omit the pressure
tank and pressure switch. Wire motor direct to
fuse box or switch per NEC.
Gate/Ball Valve
(Normally Open)
Check Valve
Union
Line Strainer
or Filter
(Optional)
Street Supply
Union
Gate/Ball Valve
(Normally Open)
Pressure
Gauge
Check Valve
Union
Gate/Ball Valve
(Normally Open)
Pressure Tank
Pressure
Switch
Main Power Box
Fuse Box
or Switch
Union
Pressure Switch
Drain
Pressure Gauge
Pressure Relief Valve
Typical Installations
Install a pressure relief valve on
any installation where pump pressure can exceed
the pressure tank's maximum working pressure
or on systems where the discharge line can be
shut off or obstructed. Extreme over pressure can
result in personal injury or property damage.
IL0414
Figure 3
Foot Valve
with Strainer
Pressure Tank
Pressure
Switch
Pressure
Gauge
Main Power Box
Gate/Ball Valve
(Normally Open)
Fuse Box
or Switch
Union
Pressure Switch
Drain
Pressure Gauge
Union
Pressure Relief
Vacuum
Gauge
Union
© Copyright 2005 Zoeller Co. All rights reserved.
5
INSPECTION AND STORAGE
When unpacking the unit, inspect carefully for any
damage that may have occurred during shipment. If
the unit is received sometime before it can be used,
it should be inspected, recrated and stored in a dry
location.
LOCATION
IMPORTANT: In installations where property damage
might result from an inoperative or leaking pump due
to power outages, discharge line blockage or any other
reason, a back-up system (s) and/or warning system(s)
should be used. Install a gate valve and union in the
suction and discharge lines. For removal of the pump
for service, close the gate valve and disconnect the
union.
1. Locate pump as close to the fluid source as
possible.
2. Place unit where the motor electrical components
and piping are protected from the weather and
extremes of heat, humidity and below freezing
temperatures.
3. Mount unit in a dry location that is easily accessible
for inspection and maintenance. If a dry location is
not available, mount it on a foundation well above
the wet floor.
4. Allow ample clearance around unit for free air
circulation.
5. Pumps incorporate a discharge port on the pump
casing that can be adjusted in 90° increments.
If necessary, adjust the discharge port to
accommodate the specific application. Pump
performance will not be affected by the position of
the discharge port.
SUCTION LIMITATIONS
1. Units are not self-priming. Normally after being
primed the total suction lift of the pump is 25
feet. Suction lift varies depending upon elevation
(altitude) and water temperature. See Practical
Suction Lift chart.
2. Where liquids at or near their boiling points are
being handled, the supply must be located above
the suction, so that the available NPSH will be
greater than that required by the unit.
PIPING
1. Use galvanized piping, rigid plastic or other suitable
pipe that will not collapse under suction or rupture
due to pressure.
2. The diameter of the suction and discharge pipe
should be no smaller than the corresponding
tappings of the pump (see Figure 1). If long runs are
encountered larger pipe should be used. Smaller
pipe will reduce the capacity of the pump.
3. All joints and connections should have Teflon tape or
pipe sealing compound (male threads only) applied
and drawn up tightly.
The entire system must be air and water tight for
efficient operation.
PUMP INSTALLATION
Refer to Figures 2, 3 and 4 for typical installations.
Both the suction and discharge pipe should be
supported at a point near the pump to avoid strains
being placed on the pump.
(▲) Shut-off. To convert to feet of head, multiply by 2.31.
( ✝) Do not exceed the maximum case pressure and maximum liquid temperature rating of the pump.
(* ) Operation of pump in this range may result in reduced pump life and/or motor damage.
Pump Performance Chart C
GPM at Total Pressure in PSI ▲Max ✝Max ✝Max
Pressure Pressure Liquid
Model HP Stage 15 20 25 30 40 PSI PSI Temperature
300 1/3 1 41 30 10 -- -- 27 100 200°F
301 1/2 1 48 40 27 -- -- 30 100 200°F
302 3/4 1 62 58 46 31 -- 33 100 200°F
303 1 1 70 66 58 48 -- 40 100 200°F
304 1-1/2 1 * 75 70 61 36 44 100 200°F
305 2 1 * * 79 77 57 45 100 200°F
Practical Suction Lifts at Various Elevations and
Water Temperatures in Degrees Fahrenheit
Altitude 60º 80º 100º 120º 140º 160º 180º 200º
Sea Level -22 -21 -20 -18 -15 -10 -4 +5
2000 -20 -19 -18 -16 -12 -7 -1 +8
4000 -17 -16 -15 -13 -10 -4 +2 +12
6000 -15 -14 -13 -11 -7 -2 +6 +16
8000 -13 -12 -10 -8 -4 +2 +9 —
10000 -10 -9 -8 -6 -2 +4 +13 —
This table gives the maximum permissible suction lift or the
minimum head permitted on the suction side of a pump at
various altitudes and liquid temperatures. A minus sign before
a number indicates suction lift. A plus sign before a number
indicates minimum head. These figures are to be used as a
guide.
© Copyright 2005 Zoeller Co. All rights reserved.
6
1. If the pump is used as part of a permanent installation,
secure to a rigid foundation with appropriate fasteners.
2. Locate the pump as close to the water source
as possible, keeping the suction pipe as short as
conditions permit.
3. Avoid dips or pockets in offset piping or air will
accumulate at high points which will make priming
difficult.
4. The suction pipe should slope upward to the pump
inlet. A horizontal suction line must have a gradual
rise to the pump.
5. On suction lift installations, a foot valve located in the
water or a check valve located as close to the water
as possible will reduce priming time of the pump and
help maintain prime. A strainer that will pass 3/32”
to 1/8” max. diameter particles must be used on the
suction line to filter out dirt and debris.
6. A priming tee installed in the pump discharge port
allows water to be poured into the pump case and
suction piping, which is required for priming on suction
lift installations.
7. Install a gate valve and union in the suction and
discharge lines. For removal of the pump for service,
close the gate valve and disconnect the union.
Do not use a globe valve or other
restricting type of valve at the discharge. This will
seriously restrict the capacity of the pump.
8. Pressure Gauges - Properly sized vacuum or pressure
gauges can be installed in both the suction and
discharge pipe. The gauges will enable observation
of the pump's performance as well as detecting
cavitation, vapor binding or other unstable operation.
Use only components that are rated higher
than shut-off pressure of the system. Do not exceed the
pump's maximum case pressure of 100 PSI.
A pressure relief valve of adequate
capacity must be installed on any installation where the
pump pressure can exceed the pressure tank's maximum
working pressure or on systems where the discharge line
can be shut-off or obstructed. Not providing a relief valve
can cause extreme over pressure which could result in
personal injury and/or property damage.
IL0415
Pressure Gauge
Rigid
Foundation
Priming Plug
Level Pipe
Support
Discharge
Suction Pipe Installed with
Gradual Rise to Pump Inlet
Figure 4
ELECTRICAL
Ground motor before connecting to
electrical power supply:
Connect the motor frame to equipment
grounding conductor by using green
screw. Do not connect green ground
wire to any of the motor leads.
Do not ground to a gas supply line.
Turn off power to motor before working
on electrical connections.
Supply voltage must be within ±10% of
nameplate voltage when the pump is
running. If in doubt consult a licensed
electrician.
Use wire size specified in wiring Chart D. If wiring diagram
on motor model plate differs from diagram shown in
Figures 5 & 6, follow diagram on motor.
SEE CAUTIONS AND WARNINGS ON
PAGE 1.
WIRING
1. Motor voltages will vary depending upon the motor
horsepower and phase. Refer to the motor nameplate
and the Motor Data Chart (Chart B) for voltage and
electrical data.
2. To change voltage, remove the rear access cover, which
is held in place with two (2) screws. For proper electrical
connection, refer to the connection diagram located on
the motor nameplate or Figure 5 above.
Replace rear access cover before
starting or operating pump.
Failure to do so can result in
personal injury.
MOTOR PROTECTION
1. All single phase motors have built-in thermal protection
for all voltages. The overload protects the motor against
burnout from overload of low voltage, high voltage and
other causes. The device is automatic and resets itself
once the temperature has dropped to a safe point.
Frequent tripping of the device indicates trouble in the
motor or power lines and immediate attention is needed.
2. All motors must be equipped with a correctly protected
circuit and a disconnect switch to provide protection.
Consult local or national electric codes for proper fuse
protection based on motor data chart (see Chart B).
Hazardous
voltage. Can
shock, burn or
cause death.
Failure to follow
warnings can
cause fatal or
severe shock
hazard or
equipment failure.
IL0180
Figure 5 - Wiring Diagram for Single Phase
1/3-2 HP
L1
AB
L2 L1
AB
L2
115 VOLTS
SINGLE PHASE
230 VOLTS
SINGLE PHASE
LINE LINE
T
A
N
R
E
D
Y
E
L
L
O
W
W
H
I
T
E
G
R
A
Y
Y
E
L
L
O
W
W
H
I
T
E
G
R
A
Y
T
A
N
R
E
D
© Copyright 2005 Zoeller Co. All rights reserved.
7
Under normal operating conditions they should require no
further greasing.
Freezing
Drain the entire system if there is danger of freezing. A
drain plug is provided at the bottom of the pump case for
this purpose.
ROTARY SEAL ASSEMBLY REPLACEMENT
Make certain that the power supply is
disconnected before attempting to ser-
vice the unit! The rotary seal assembly
must be handled carefully to avoid damaging the precision lapped
faces of the sealing components.
Disassembly
1. Remove the four (4) pump through bolts that connect
the mounting ring to the pump body. Remove the
pump body, taking care not to damage the gasket or o-
ring.
2. Remove the impeller. Using a 9/16” open end wrench,
hold the motor shaft flat and unthread the impeller by
turning it counterclockwise. The motor shaft flat area is
located in the middle of the mounting ring.
3. Remove the mechanical seal assembly. The rotary
portion of the seal assembly (carbon ring, Buna-N
gasket and spring) will easily slide off the end of the
shaft. The ceramic portion can be pried out of the
rubber seating using two (2) screwdrivers (see Fig. 6).
IL0173
IL0168
Figure 6 - Remove
Mechanical Seal
Figure 7 - Press in Seal
Reassembly
The precision lapped faces of the
mechanical seal are easily damaged. Handle the
replacement seal carefully. Short seal life will result if seal
faces (ceramic & carbon) are nicked, scratched or dirty.
1. Clean the seal cavity of
the mounting ring and the
motor shaft thoroughly.
2. Apply liquid soap (one
drop only) to the outside
of the Buna-N gasket
that houses the ceramic
seal seat. With thumb
pressure, press the
ceramic seat, polished
face up, squarely into the
seal cavity (see Figure 7).
3. If seal does not seat
Never examine, make wiring changes or
touch the motor before disconnecting
the main electrical supply switch. The thermal device may have
opened the electrical circuit.
PRIMING
1. Before starting any centrifugal pump, it is absolutely
necessary that both the casing and suction pipe be
completely filled with liquid. This priming can be
accomplished by any of the following methods:
2. When the liquid supply level is above the center line
of the pump, it is primed by opening the suction and
discharge valves. The inflowing liquid will displace the
air and fill the suction line, pump casing, and discharge
line up to the level of supply.
3. Where the pump is operating with suction lift and the
suction line is equipped with a foot valve, remove the
priming plug from the discharge tee (see Figure 4)
and fill the pump body and suction pipe completely
with water. No additional water will be needed for
subsequent start-ups unless the pump body is drained.
4. After the pump is turned on it will require 2-5 minutes
before all air is evacuated from the suction line and
water begins to flow. If there is no water after 5
minutes, turn the pump off and check the following:
Any air leaks on the suction line must be eliminated.
Suction pipe inlet should be a minimum of 5 feet below
the water level.
Total suction lift cannot be greater than 25 feet.
Any restrictions in the discharge pipe, such as a closed
valve must be eliminated.
NOTE: Unit must be full of liquid before operating. Never
run dry, or against a closed discharge. Dry running or
running unit against a closed discharge will cause damage
to the shaft seal. Do not pump dirty water or abrasive
liquids, otherwise the same may occur as if running dry.
MOTOR ROTATION
1. Pump impeller rotates in one direction only,
(counterclockwise when facing the pump suction
tapping) and cannot be reversed.
MAINTENANCE
Lubrication
The pump and motor require no lubrication. The ball
bearings of the motor have been greased at the factory.
IL0169
Figure 8 - If Necessary, Press with
Cardboard and Pipe
3/4” Pipe
- Press
Carefully
NOTE:
Cardboard
Washer Protects
Seal Face
Seal
Seal
Cavity
(*) Not economical to run in 115 volt, use 230 volts
MINIMUM COPPER WIRE SIZE CHART (GAUGE)
Chart D
DISTANCE
FROM MOTOR
TO FUSE BOX
METER, OR
ELECTRICAL
OUTLET
SINGLE PHASE MOTORS
1/3HP
115V 230V
1/2HP
115V 230V
3/4
115V 230V
1HP
115V 230V
1-1/2HP
115V 230V
2HP
115V 230V
0-50’
50-100’
100-150’
150-200’
200-300’
Breaker Size
(Amps)
14 14
14 14
14 14
12 14
12 14
15 15
12 14
12 14
12 14
12 14
10 14
20 15
12 14
12 14
10 14
10 12
8 12
20 15
10 14
10 14
10 12
8 12
6 10
30 15
10 12
8 12
6 12
* 10
* 10
30 20
10 12
8 12
6 12
* 10
* 10
30 20
© Copyright 2005 Zoeller Co. All rights reserved.
8
Sympton Possible Cause(s) Corrective Action
Little or no discharge 1. Pump not primed 1. Prime unit
2. Total head too high 2. Shorten suction lift and/or discharge head
3. Suction head higher than pump 3. Lower pump inlet
designed for
4. Impeller clogged 4. Clean
5. Incorrect rotation 5. Refer to wiring information
6. Leak in suction line 6. Repair or replace
7. Inadequate foot valve 7. Make needed adjustments
8. Impeller damaged 8. Replace
9. Foot valve or suction line 9. Submerge lower in water
not submerged deep enough in water
10. Insufficient inlet pressure or suction head 10. Increase inlet pressure by
source adding more fluid to fluid
11. Wrong size piping 11. Make needed adjustments
12. Casing gasket leaking 12. Replace gasket
13. Suction or discharge line valves closed 13. Open
Loss of suction 1. Air leak in suction line 1. Repair
2. Suction head too high 2. Lower pump inlet
3. Insufficient inlet pressure or 3. Increase inlet pressure by
suction head adding more fluid to fluid source
4. Clogged foot valve or strainer 4. Clean or replace
Pump vibrates and/or makes 1. Mounting plate or foundation not rigid enough 1. Reinforce
excessive noise 2. Foreign material in pump 2. Clean
3. Damaged impeller 3. Replace
4. Cavitation present 4. Check suction line for proper size and be
certain valve is open. Remove excessive
loops in suction line
5. Worn motor bearings 5. Replace
6. Bent impeller shaft 6. Replace
Pump will not start or run 1. Improperly wired 1. Refer to wiring diagram
2. Blown fuse or open circuit breaker 2. Replace fuse or close circuit breaker
3. Loose or broken wiring 3. Tighten connections and replace broken wiring
4. Impeller clogged 4. Clean
5. Motor shorted out 5. Replace
Pumps leaks at shaft 1. Worn mechanical seal 1. Replace
2. Bent impeller shaft 2. Replace
squarely, remove and reclean the seal cavity. Place
a clean cardboard washer over the polished seal face
and carefully press into place using a piece of pipe or
tubing (see Figure 8). Discard cardboard washer.
4. Apply liquid soap (one drop only) to the inside
diameter of the rubber drive ring. Slip rubber drive
ring (carbon face down) and the spring over the shaft.
5. Reassemble the pump by following the reverse order
of the disassembly instructions.
MOTOR REPLACEMENT
1. Nema J motors can be replaced in the field with any
standard Nema J jet pump motor by referring to the
following instructions and the attached parts list.
2. Follow steps as outlined under Rotary Seal
Replacement to remove the pump body, diffuser, impeller
and rotary seal.
3. Remove bolts that connect the motor to the mounting
ring and pull motor away.
4. Replace motor with standard Nema J jet pump motor
by positioning motor against the mounting frame and
assembling with four (4) 3/8" x 3/4" cap screws. The
mounting base is connected at the bottom of the
mounting frame with two (2) 3/8" x 1/2" cap screws.
5. Follow steps of Rotary Seal Assembly to reassemble the
remainder of the pump.
BECAUSE DAMAGE TO THE SHAFT SEAL IS MOST
LIKELY TO OCCUR IN DISASSEMBLY, A NEW SEAL IS
REQUIRED.
TROUBLESHOOTING CHART

Navigation menu