This Installation, Operation and Maintenance manual provides important information on
safety and the proper inspection, disassembly, reassembly and testing of the BJM
Pumps® KZE Series submersible pump. This manual also contains information to
optimize performance and longevity of your BJM Pumps submersible pump.
The submersible KZE Series pumps are designed to pump water and water based
slurries. The KZE Series pumps are not explosion-proof. They are not designed to
pump volatile or flammable liquids.
Note: Consult chemical resistance chart for compatibility between pump
materials and liquid before operating pump.
If you have any questions regarding the inspection, disassembly, assembly or testing
please contact your BJM Pumps distributor, or BJM Pumps, LLC.
BJM Pumps, LLC
123 Spencer Plain Rd.
Old Saybrook, CT 06475, USA
Information, including pump data sheets and performance curves, is also available on
our web site: HUwww.bjmpumps.comU
For assistance with your electric power source, please contact a certified electrician.
Please pay attention to the following alert notifications. They are used to notify
operators and maintenance personnel to pay special attention to procedures, to avoid
causing damage to the equipment, and to avoid situations that could be dangerous to
personnel.
NOTE: Instructions to aid in installation, operation, and maintenance or which
clarify a procedure.
Immediate hazards that WILL result in severe personal injury or
death. These instructions describe the procedure required and the injury which will
result from failure to follow the procedure.
Hazards or unsafe practices that COULD result in severe personal
injury or death. These instructions describe the procedure required, and the injury which
could result from failure to follow the procedure.
Hazards or unsafe practices which COULD result in personal injury
or product or property damage. These instructions describe the procedure required and
the possible damage which could result from failure to follow the procedure.
4
HSAFETY
Pump installations are seldom identical. Each installation and application can vary due
to many different factors. It is the owner/service mechanics responsibility to repair,
service, and test to ensure that the pump integrity is not compromised according to this
manual.
Risk of electric shock – this pump has not been investigated for use
in swimming pool areas.
Do not pump flammable or volatile liquids. UDeath or serious
injury will result.
Before attempting to open or service the pump:
1) Familiarize yourself with this manual.
2) Disconnect the pump power cable to ensure that the pump will remain inoperative.
3) Allow the pump to cool if overheated.
Do not operate the pump with a worn or damaged electric power
cable. Death or serious injury could occur.
Never attempt to alter the length or repair any power cable with a
splice. The pump motor and pump motor and cable must be completely waterproof.
Damage to the pump or personal injury may result from alterations.
After the pump has been installed, make sure that the pump and all
piping are secure before operation.
Do not lift the pump by the power cable piping or discharge hose.
Attach proper lifting equipment to the lifting handle (or lifting rings) fitted to the pump. Do
not suspend the pump by the power cable.
Obtain the services of a qualified electrician to troubleshoot, test
and/or service the electrical components of this pump.
Pumps and related equipment must be installed and operated
according to all national, local and industry standards.
5
INSPECTION
Review all safety information before servicing pump.
The following are recommended installation practices/procedures for the pump. If there
are questions in regards to your specific application, contact your local BJM Pumps
distributor or BJM Pumps, LLC.
PRE-INSTALLATION INSPECTION
1) Check the pump for damage that may have occurred during shipment.
2) Inspect the pump for any cracks, dents, damaged threads, etc.
3) Check power cable (and seal minder cable, if installed) for any cuts or damage.
4) Check for, and tighten any hardware that appears loose.
5) Carefully read all tags, decals and markings on the pump.
6) Important: Always verify that the pump nameplate, amps, voltage, phase, and
HP ratings match your control panel and power supply.
Warranty does not cover damage caused by connecting pumps and controls to an
incorrect power source (voltage/phase supply). Record the model numbers and serial
numbers from the pumps and control panel on the front of this instruction manual for
future reference. Give it to the owner or affix it to the control panel when finished with
the installation.
The KZE Model pumps are equipped with embedded thermal motor sensor switches
and a Seal Minder. Both are required to be properly connected to maintain warranty.
If anything appears to be abnormal, contact your BJM Pumps distributor or BJM
Pumps, LLC. If damaged, the pump may need to be repaired before use. Do not install
or use the pump until appropriate action has been taken.
Lubrication:
No additional lubrication is necessary. The shaft seal and bearings are fully lubricated
from the factory. Seal oil should be checked one per year. See table below.
6
Qty. oil in seal chamber
Models
U.S. fl. oz.
C.C.
Type of oil
KZE370
213
6400
ISO 32 NSF Food Grade
Mineral Oil
KZE550
380
11,400
ISO 32 NSF Food Grade
Mineral Oil
Model
KZE 370
KZE 550
Y inch
(17 3/8)
(17 3/8)
W inch
(56)
(60 5/8)
OIL FILL QUANTITY/TYPE
PUMP INSTALLATION
KZE Series pumps have been evaluated for use with water or water based solutions.
Please contact the manufacturer for additional information.
Risk of electric shock. KZE Series pump models do not come
with electric plug connectors. To reduce the risk of electric shock, be certain that it is
connected only to a properly grounded, grounding-type receptacle or control panels.
Lifting:
Attach lifting chain (not included) to the lifting rings on the top of the pump.
Do not lift the pump by the power cable or discharge hose/piping.
Proper lifting equipment (chain) must be used.
POSITIONING THE PUMP
BJM Pumps, KZE Series pumps are designed to operate fully or partially submerged.
Do not run the pump dry. Refer to data sheet for minimum submersion depth for your
particular model. Data sheets can be obtained online at HUwww.bjmpumps.comUH or by
calling BJM Pumps, LLC at 860-399-5937. As a general rule, KZE Series side discharge
pumps can pump down to the top of the volute. Pumping lower than the suction screen
will permit air to enter the pump and cavitate, lose prime
or become air bound (see chart below).
7
Do not run pump dry.
Pump liquid should not exceed a maximum temperature of 104°F.
Never place the pump on loose or soft ground. The pump may sink, preventing
water from reaching the impeller. Place on a solid surface or suspend the pump
with a lifting chain. The KZE Series pumps are provided with a suction strainer to
prevent large solids from clogging the impeller. Any spherical solids which pass
through the strainer should pass through the pump.
For maximum pumping capacity, use the proper size non-collapsible hose or rigid
piping. A check valve may be installed after the discharge to prevent back flow
when the pump is shut off.
PUMP ROTATION
Two ways to check the correct pump rotation:
1. By looking at the impeller; the rotation of the impeller should be counter
clockwise. As seen from the bottom.
2. By looking from the top of the pump. Since the impeller cannot be seen, the best
way to check the rotation is to check the kick back motion of the pump when the
pump just starts. The kick back motion of the pump should be counter clockwise
as shown in the picture below.
8
PUMP OPERATION
This pump is designed to handle water and agrated slurry. It is not
designed to pump volatile or flammable liquids. Do not attempt to pump any liquids
which may damage the pump or endanger personnel as a result of pump failure.
Do not operate this pump where explosive vapors or
flammable material exist. Death or Serious injury will result.
TYPICAL MANUAL DEWATERING INSTALLATION
NOTE: Maximum recommended starts should not exceed 10 times per hour.
All KZE models are provided with a 50’ (10m) GGC power cable. UNEVERU splice the
power cable due to safety and warranty considerations. Always keep the power lead
end dry.
Note: 460 & 575V three phase units do not have a plug.
Do not alter the length or repair any power cable with a splice. The
pump motor and cable must be completely waterproof. Damage to the pump or
personal injury may result from alterations.
For manual operation: 460 & 575 volt: Connect directly to the power source or control
box. KZE model pumps are supplied with two grounding wires and a ground check wire;
two green for grounding to the panel; the other is green with a yellow stripe and is to be
used for grounding check systems. Check the direction of the rotation. Tilt the pump and
start it. It should twist in the opposite direction of the arrow (on pump). It is
recommended that a Ground Fault Interrupter (GFI) type breaker (or equivalent) be
used.
STOPPING
To stop the pump (manual and automatic mode), turn off the breaker/disconnect, or turn
the power source off (generator).
9
Typical 3 phase manual control 1
TYPICAL AUTOMATIC DEWATERING INSTALLATION
NOTE: Maximum recommended starts should not exceed 10 times per hour.
Note: 460V & 575V pumps do not have a plug installed.
Three phase pumps need a separate control box with float(s) for automatic
operation.
10
STOPPING
To stop the pump (manual and automatic mode), turn off the breaker/disconnect, or turn
the power source off (generator).
11
Typical 3 phase Auto Control 1
INTENDED METHODS OF CONNECTION
Use with approved motor control that matches motor input in full
load amperes. “UTILLISER UN DÉMARREAR APPROUVÉ CONVENANT AU
COURANT Á PLEINE CHARGE DU MOTEUR.”
BJM Pumps submersible pumps have been evaluated for use with water or water
based solutions. Please contact the manufacturer for additional information.
12
THREE PHASE WIRING INSTRUCTION
FOR YOUR PROTECTION, ALWAYS DISCONNECT PUMP
FROM ITS POWER SOURCE BEFORE HANDLING.
“Risk of electrical shock” Do not remove power supply cable and
strain relief or connect conduit directly to the pump.
Installation and checking of electrical circuits and hardware should
be performed by a qualified licensed electrician.
To automatically operate a non-automatic three phase pump, a control panel is
required. UFollow the instructions provided with the panel to wire the system.U For
automatic three phase pumps see automatic three phase wiring diagram.
Before installing a pump, check the pump rotation to insure that wiring has been
connected properly to power source, and that the green leads of power cable (See
wiring diagram), is connected to a valid ground, momentarily energize the pump,
observing the directions of kick back due to starting torque. Rotation is correct if kick
back is in the opposite direction of rotation arrow on the pump casing. If rotation is not
correct, switching of any two power leads other than ground will provide the proper
rotation.
The KZE pumps include thermal motor sensor switches that are embedded in the motor
windings. The sensor leads are connected to the start circuit on the motor control panel
as shown in the example wiring diagrams. It is recommended that all pumps using a
motor starting device incorporate motor overload protection. Pumps must be installed in
accordance with the National Electrical Code and all applicable local codes and
ordinances. Pumps are not to be installed in locations classified as hazardous in
accordance with National Electrical Code, ANSI/NFPA 70.
Connect pump to a junction box, outlet box, control box, enclosure with a wiring
compartment that meets NEC and local codes. The provision for supply connection
shall reduce the risk of water entry during temporary, limited submersion and shall
comply with the applicable requirements of the Standard for Enclosures for Electrical
Equipment, UL 50, or the standard for Metallic Outlet Boxes, UL 514A, and the standard
for Motor-Operated Water Pumps. UL 778.
13
TROUBLE SHOOTING
Disconnect the power source to the pump BEFORE attempting
any type of trouble shooting, service or repair.
PUMP WILL NOT RUN
1. Check power supply (fuses, breaker). Reset power.
2. Blocked impeller. Remove strainer, check and clean.
3. Defective cable or incorrect wiring.
4. Strainer clogged. Check and clean as necessary.
5. Float switch tangled/obstructed. Clean and free float switch from obstruction.
6. Float switch defective. Replace float switch.
7. Pump overheated or temperature of liquid exceeds pump operating
temperature.
UWarning: Pump will restart automatically when motor over-heat protection switch
cools.
PUMP RUNS BUT DOES NOT DELIVER RATED CAPACITY
1. Discharge line clogged, restricted or hose kinked. Check discharge hose/pipe.
2. Worn impeller and/or suction cover. Inspect and replace as necessary.
3. Pump overloaded due to liquid pumped being too thick.
4. Pumping air. Check liquid level and position of pump.
5. Excessive voltage drops due to long cables.
6. Three phase only; pump running backwards, check rotation.
SERVICING YOUR SUBMERSIBLE PUMP
Pump should be disconnected from the electric power supply before proceeding to do
any service or maintenance.
To service or repair your pump, please contact your local BJM Pumps distributor.
Service should only be performed by a qualified electrician.
MAINTAINING YOUR PUMP
Pump should be disconnected from the electric power supply before proceeding
to do any service or maintenance.
Pump should be inspected at regular intervals.
More frequent inspections are required if the pump is used in a harsh
environment.
14
Body
Oil Plug Hole
Adequate Stand
Transparent Vessel
Adequate Stand
Preventative maintenance should be performed to reduce the chance of
premature failure.
Worn impellers and lip seals should be replaced.
Cut or cracked power cables must be replaced. (Never operate a pump with a
cut, cracked or damaged power cable.)
Seal oil should be checked once per year.
Maintenance should always be done when taking a pump out of service before
storage.
1) Clean pump of dirt and other build up.
2) Check condition of oil around the shaft seals.
3) Check hydraulic parts: check for wear.
4) Inspect power cable. Make sure that it is free of nicks or cuts.
CHANGING MECHANICAL SEAL COOLING OIL
Changing the seal oil in the KZE Series pumps is very easy.
1) Disconnect the pump power cable from the power source.
2) Pull the pump from the sump and lay it on its side as shown in the illustration
below.
3) Remove the oil fill/drain screw, and drain the oil contents into a catch
container. If there was water or the oil appeared milky, the mechanical seal
should be inspected and possibly changed.
4) Place the pump back into an upright position.
5) Fill the proper and type of oil back into the seal chamber.
15
CHANGING MECHANICAL SEALS*
1) Follow instructions 1 through 4 in the “Changing Mechanical Seal Cooling Oil”
section of this manual
2) With the pump properly supported on its side, begin to remove the following
components:
a. Strainer/ stand
b. Wear plate
c. Agitator (note this will need to be heated to 400°F break the
bond of the thread locking compound)
d. Impeller
e. Volute case
f. Seal chamber cover
3) Once the seal chamber cover has been removed, carefully remove the old
mechanical seals. Clean the chamber to remove all old oil, water and any
debris that may be present.
4) Inspect the shaft to insure that no damage has occurred and that a slightly
rough micro finish of approximately 100 rms is present. Use 220 wet and dry
sand paper to scuff the shaft axially to gain the proper finish.
5) Lubricate the new upper stationary mechanical seal with the new seal
chamber oil,, and push into position with a non marring pushing tool (clean
PVC pipe works well).
6) Repeat the previous step for the lower stationary mechanical seal located in
the seal cover.
7) Lubricate the shaft with seal chamber oil. Place the upper rotating seal face
onto the shaft and push with a seal pushing tool that pushes on the bellows.
Push into place until the rotating face is in contact with the stationary face.
8) Place the spring into position on the upper rotating seal.
9) Lubricate the shaft with seal chamber oil. Place the lower rotating seal face
on the shaft facing outward. Push with a seal pushing tool that pushes on the
outer edge of the seal without contacting the face. Push down until the lower
rotating face is at the approximate locating.
10) Check the O-ring on the seal cover and replace if necessary.
11) Carefully replace the seal cover by slowly pushing down on the rotating seal
assembly until the seal cover is fully in position.
12) Replace the seal cover retaining fasteners and torque to the proper
specification.
13) Rebuild the pump in the opposite manner it was disassembled. Properly
torque all fasteners.
*Note: If there is excessive liquid found in the oil or mechanical seal damaged, please
contact BJM Pumps authorized service centers.
Also known as a seal failure circuit (or moisture detection circuit) is designed to inform
the pump operator that there is moisture within the oil chamber. This early warning can
allow the operator to schedule repair & inspection on the pump. The Seal Minder
sensor probe is inside the oil chamber. (The oil chamber houses the mechanical seals
that are cooled & lubricated by oil). The Seal Minder, when properly connected to a
control panel, can help indicate seal failure. The Seal Minder cord requires a seal fail
circuit in control panel for warning signal.
Along, with the Seal Minder, the KZE Series high temperature pumps also feature
thermal temperature sensor switches that are imbedded into the motor stator windings.
Three switches are imbedded into the stator windings and wired in series. The leads are
connected to the pump control panel through the sensor cable. If the windings would
see a temperature above 300 degrees F, then the switch(s) would open and cut power
to the pump. Once the temperature dropped below 300 degrees F, the switch(s) would
reset allowing the pump to be restarted. This feature is designed to prevent damage to
the stator winding and allow for longer pump life.
The sensor cable consists of four leads, two are connected to the Seal Minder, and two
are connected to the thermal sensor switches located in the stator windings. These four
leads run to the pump control panel and connect to the proper connections points for
seal alarm and thermal cut off. The black and white wires are for the Seal Minder
connections and the thermal sensors will be connected to the yellow and red wires. The
three phase automatic wiring diagram shown earlier in the manual will give a guide to
the connections in the control panel. The manual for the control panel should be
consulted for the exact connections.
The sensor cable with Seal Minder and thermal sensor switch connections are
standard on all KZE model pumps. BJM Pumps, LLC can supply a control with the Seal Minder and Thermal sensor switch option. Separate stand alone Seal Minder alarm
panels are also available. Consult your BJM Pumps, LLC representative for part
numbers and ordering details. BJM Pumps, LLC requires the Seal Minder and thermal
sensor switches be used. Failure to connect or misuse of these devices will void
warranty.
21
22
BJM PUMPS, LLC
123 Spencer Plain Road
Old Saybrook, CT 06475, U.S.A.
WARRANTY AND LIMITATION OF LIABILITY
Unless otherwise expressly authorized in writing, specifying a longer or shorter period, BJM
Pumps, LLC warrants for a period of eighteen (18) months from the date of shipment from the
Point of Shipment, or one (1) year from the date of installation, whichever occurs first, that all
products or parts thereof furnished by BJM Pumps, LLC under the brand name BJM Pumps,
hereinafter referred to as the “Product” are free from defects in materials and workmanship and
conform to the applicable specification.
BJM Pumps, LLC’s liability for any breach of this warranty shall be limited solely to replacement
or repair, at the sole option of BJM Pumps, LLC, of any part or parts of the Product found to be
defective during the warranty period, provided the Product is properly installed and is being
used as originally intended. Any breach of this warranty must be reported to BJM Pumps, LLC
or BJM Pumps, LLC’s authorized service representative within the aforementioned warranty
period, and defective Product or parts thereof must be shipped to BJM Pumps, LLC or BJM
Pumps, LLC’s authorized representative, transportation charges prepaid. Any cost associated
with removal or installation of a defective Product or part is excluded.
IT IS EXPRESSLY AGREED THAT THIS SHALL BE THE SOLE AND EXCLUSIVE REMEDY
OF BJM PUMPS, LLC’S DISTRIBUTORS AND CUSTOMERS. UNDER NO CIRCUMSTANCES
SHALL BJM PUMPS, LLC BE LIABLE FOR ANY COSTS, LOSS, EXPENSE, DAMAGES,
SPECIAL DAMAGES, INCIDENTAL DAMAGES OR CONSEQUENTIAL DAMAGES ARISING
DIRECTLY OR INDIRECTLY FROM THE DESIGN, MANUFACTURE, SALE, USE OR REPAIR
OF THE PRODUCT, WHETHER BASED ON WARRANTY, CONTRACT, NEGLIGENCE, OR
STRICT LIABILITY. IN NO EVENT WILL LIABILITY EXCEED THE PURCHASE PRICE OF
THE PRODUCT.
THE WARRANTY AND LIMITS OF LIABILITY CONTAINED HEREIN ARE IN LIEU OF ALL
OTHER WARRANTIES AND LIABILITIES, EXPRESSED OR IMPLIED. ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
HEREBY DISCLAIMED BY BJM PUMPS, LLC AND EXCLUDED FROM THIS WARRANTY.
BJM Pumps, LLC neither assumes, nor authorizes any person to assume for it, any other
warranty obligation in connection with the sale of the Product. This warranty shall not apply to
any Product or parts of Product which have (a) been repaired or altered outside of BJM Pumps,
LLC’s facilities unless such repair was authorized in advance by BJM Pumps, LLC or by its
authorized representative; or (b) have been subject to misuse, negligence or accident; or (c)
have been used in a manner contrary to BJM Pumps, LLC’s instruction.
In any case of products not manufactured and sold under the BJM Pumps, LLC brand name,
there is no warranty from BJM Pumps, LLC; however BJM Pumps, LLC will extend any warranty
received from BJM Pumps, LLC’s supplier of such products.
START-UP REPORT FORM
Pump Owner’s Name
Location of Installation
Person in Charge
Phone( )
Purchased From
Model
Serial No
Voltage
Phase
Hertz
HP
Does impeller turn freely
by hand?
Yes No
Condition of Equipment
New Good Fair Poor
Condition of Cable Jacket
New Good Fair Poor
Rotation: Direction of Impeller Rotation (Use C/W for clockwise, CC/W for counterclockwise):
Method used to check rotation (viewed from bottom)
Resistance of cable and Pump Motor (measured at pump control)
Red-Black
ohms
Red-White
ohms
White-Blackohms
Resistance of ground circuit between control panel and outside of pumps
Ohms
MEG OHM CHECK OF INSULATION
Red to ground White to ground Black to ground
Condition of location at start-up
Dry Wet Muddy
Was equipment stored
If YES, length of storage:
Yes No.
Liquid being pump
Debris in bottom of station?
Yes No
Was debris removed in your
Yes No
START-UP REPORT FORM
This form is designed to record the initial installation, and to serve as a guide for troubleshooting at a
later date (if needed).
BJM Pumps, LLC
123 Spencer Plain Road
Old Saybrook, CT. 06475
START-UP REPORT FORM
presence?
Are guide rails exactly vertical?
Yes No
Is base elbow installed level?
Yes No
Liquid level controls: Model
Is control installed away from
turbulence?
Yes No
Operation Check
Tip lowest float (stop float), all pumps should remain off.
Tip second float (and stop float), one pump comes on.
Tip third float (and stop float), both pumps on (alarm on simplex).
Tip fourth float (and stop float), high level alarm on (omit on simplex).
If not on levels controls, describe type of controls
Does liquid level ever drop below
volute top?
Yes No
Control Panel MFG & model no.
Number of pumps operated by control panel
NOTE: At no time should hole be made in top of control panel, unless proper sealing
devices are utilized.
Short Circuit protection:
Type:
Number and size of short circuit device(s)
Amp rating:
Overload type:
Size:
Amp rating:
Do protective devices comply with
pump motor amp rating?
Yes No
Are all pump connections tight?
Yes No
Is the interior of the panel dry?
Yes No
If No, correct moisture problem.
SINGLE PHASE
Voltage supply at panel line
connection, pump off
L1
L2
Voltage supply at panel line
connection, pump on
L1
L2
Amperage load connection, pump on
L1
L2
THREE PHASE
Voltage supply at panel line connection, pump off
L1-L2
L2-L3
L3-L1
START-UP REPORT FORM
Voltage supply at panel line connection, pump on
L1-L2
L2-L3
L3-L1
Amperage load connection, pump on
L1
L2
L3
FINAL CHECK
Is pump secured properly?
Yes No
Was pump checked for leaks?
Yes No
Do check valves operate properly?
Yes No
Flow: Does station appear to operate at
proper rate?
Yes No
Noise level:
Acceptable
Unacceptable
Comments:
Describe and equipment difficulties during start-up
Installed by:
Company:
Person:
Date:
Maintained by:
Company:
Person:
Date and time of start-up
Present at start-up:
( ) Engineer’s name( )Contractor’s name( ) Operator’s name
( ) others
NOTES:
BJM Pumps, LLC
123 Spencer Plain Road • PO Box 1138 • Old Saybrook, CT 06475, USA
• Phone: (860) 399-5937 • Fax: (860) 399-7784
Email: sales@bjmpumps.com • Web Site: www.bjmpumps.com