BJM Pumps SKG FAHRENHEIT Series Instruction manual

Version 1-24-16
INSTALLATION, OPERATION & MAINTENANCE MANUAL
SKG FAHRENHEIT®SERIES
SHREDDER PUMPS
Electric Submersible Pumps
Three Phase
208V, 230V, 460V & 575V
CAST IRON
THREE PHASE
SKG15CF
SKG22CF
SKG37CF
Read this manual carefully before installing, operating or servicing these pump models.
Observe all safety information. Failure to comply with instructions may result in personal
injury and/or property damage. Please retain these instructions.

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TABLE OF CONTENTS
SAFETY ......................................................................................................................................................................... 4
INSPECTION ................................................................................................................................................................. 5
PRE-INSTALLATION INSPECTION ......................................................................................................................... 5
OIL FILL QUANTITY/TYPE ....................................................................................................................................... 6
PUMP INSTALLATION ............................................................................................................................................. 6
POSITIONING THE PUMP ....................................................................................................................................... 7
PUMP ROTATION .................................................................................................................................................... 7
PUMP OPERATION ....................................................................................................................................................... 8
TYPICAL MUNICIPAL AND INDUSTRIAL WASTEWATER INTALLATION .................................................................. 8
MANUAL OPERATION .................................................................................................................................................. 8
STOPPING ................................................................................................................................................................ 9
TYPICAL MUNICIPAL OR INDUSTRIAL WASTEWATER INSTALLATION ................................................................ 10
AUTOMATIC OPERATION ..................................................................................................................................... 10
STOPPING .............................................................................................................................................................. 10
INTENDED METHODS OF CONNECTION ................................................................................................................. 11
THREE PHASE WIRING INSTRUCTIONS ............................................................................................................. 12
TROUBLE SHOOTING ................................................................................................................................................ 12
PUMP WILL NOT RUN ........................................................................................................................................... 13
PUMP RUNS BUT DOES NOT DELIVER RATED CAPACITY ............................................................................... 13
SERVICING YOUR SUBMERSIBLE PUMP............................................................................................................ 13
MAINTAINING YOUR PUMP .................................................................................................................................. 13
SKG SERIES PARTS LIST .......................................................................................................................................... 25
THREE PHASE WIRING DIAGRAMS ......................................................................................................................... 27
208V ........................................................................................................................................................................ 27
MODELS SKG15CF, SKG22CF, SKG37CF ....................................................................................................... 27
230V ........................................................................................................................................................................ 28
MODELS SKG15CF, SKG22CF, SKG37CF ....................................................................................................... 28
460V ........................................................................................................................................................................ 29
MODELS SKG15CF, SKG22CF, SKG37CF ....................................................................................................... 29
575V ........................................................................................................................................................................ 30
MODELS SKG15CF, SKG22CF, SKG37CF ....................................................................................................... 30
SEAL MINDER® .......................................................................................................................................................... 31
WARRANTY AND LIMITATION OF LIABILITY ............................................................................................................ 33
START-UP REPORT FORM ........................................................................................................................................ 34
NOTES: ........................................................................................................................................................................ 37

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INTRODUCTION
This Installation, Operation and Maintenance manual provides important information on safety
and the proper inspection, disassembly, assembly and testing of the BJM Pumps® SKGF
Series submersible pump. This manual also contains information to optimize
performance and longevity of your BJM Pumps® submersible pump. The F Series pumps
are engineered to pump water based liquids up to 200° Fahrenheit (93°C)
The submersible SKGF Series pumps are designed to pump wastewater and
industrial wastewater that includes up to 10% by volume of solids.The SKGF 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, and assembly or testing
please contact your BJM Pumps® distributor, or Industrial Flow Solutions Operating, LLC.
IIndustrial Flow Solutions Operating, LLC
104 John W Murphy Drive
New Haven, CT 06513, USA
Phone: [phone]
Fax: [phone]
Information, including pump data sheets and performance curves, is also available on
our web site: www.flowsolutions.com
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.

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SAFETY
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, inflammable or volatile liquids. Death
or serious injury will result.
Before attempting to open or service the pump:
1) Familiarize yourself with this manual.
2) Unplug or 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.

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INSPECTION
Review allsafety 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 Industrial Flow Solutions Operating, 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.
If anything appears to be abnormal, contact your BJM Pumps® distributor or
Industrial Flow Solutions Operating, 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.
Industrial Flow Solutions Operating, LLC Recommended Storage Procedures
Storage Environment
•The storage environment must be between 40°F - 120°F. DO NOT allow the
pump to freeze.
•The pump must be stored in a dry location
•Avoid storing the pump in direct sunlight
For Storage Periods of 3 Years or Less
•Rotate the impeller shaft by hand every 6 months and again prior to start up
oKeeps seal faces from sticking
oKeeps bearing grease from settling

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•Check the oil in seal chambers prior to startup to ensure oil is moisture free and
has not broken down.
•Megger the motor prior to startup. The reading should be above 100 MΩ.
•Remove the air check screw on the motor housing. Using an air compressor,
pressurize the motor chamber to 13 psi and check for leaks using a spray bottle.
Repeat this procedure to check the seal chamber for leaks.
•Inspect the power cable for any damage.
For Storage Periods longer than 3 Years
•Disassemble the pump and replace all of the O-rings, the Mechanical Seal, Seal
Chamber Oil, and the Lip Seal. Repack the Bearings.
•Remove the air check screw on the motor housing. Using an air compressor,
pressurize the motor chamber to 13 psi and check for leaks using a spray bottle.
Repeat this procedure to check the seal chamber for leaks.
•Rotate the impeller shaft by hand prior to startup.
Lubrication:
The shaft seal and bearings are fully lubricated from the factory. Seal oil should be
checked once per year. See table: Oil Fill Quantity / Type. Prior to a dry run check, the
shredder elements should be coated with a spray lubrication oil or a heavy soapy water
solution. Do not run dry! Running dry can damage the shredder cutting elements.
OIL FILL QUANTITY/TYPE
OIL IN SEAL CHAMBER
MODEL U.S. FL. OZ. CC. TYPE OF OIL
SKG15CF
25.0
750
ISO 32 NSF Food Grade Mineral Oil
SKG22CF
25.0
750
ISO 32 NSF Food Grade Mineral Oil
SKG37CF
28.3
850
ISO 32 NSF Food Grade Mineral Oil
Note: EPDM seals will use Propylene glycol instead of Shell FM32 oil
PUMP INSTALLATION
SKGF Series pumps have been evaluated for use with water or water based solutions
with solids. Please contact the manufacturer for additional information.
Lifting:
Attach a rope or lifting chain (not included) to the handle (or lifting rings) on the top of
the pump.

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Do not lift the pump by the power cable or discharge hose/piping.
Proper lifting equipment (rope/chain) must be used.
POSITIONING THE PUMP
BJM Pumps® SKGF Series pumps are designed to operate fully or partially
submerged. Avoid running the pump dry. Refer to data sheet for minimum submersion
depth for your particular model. Data sheets can be obtained online at
www.flowsolutions.com or by calling Industrial Flow Solutions Operating, LLC at
860-399-5937. As a general rule, SKGF Series SIDE discharge pumps can pump
down to the center of the volute case. Pumping lower will permit air to enter the
pump and cavitate, lose prime or become air bound, and may also damage the
shredder cutting elements.
•Do not run pump dry.
•Pump liquid should not exceed a maximum temperature of 200°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 rope/chain.
•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.
•Take stand off of pump when using slide rail. Keep stand and reattach when
transporting or handling the pump.
PUMP ROTATION
See lubrication requirements prior to checking pump rotation. There are two ways to
check the correct pump rotation:
1. By looking at the shredder cutting bar or the pump impeller; the rotation of the
impeller should be counter clockwise as shown in the picture below.

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2. 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
motions should be viewed from the top. The kick back motion of the pump should
be counter clockwise as shown in the picture above. When viewed from the
suction side (bottom) the impeller rotation is counter clockwise.
PUMP OPERATION
This pump is designed to handle dirty water that contains some
solids. 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 MUNICIPAL AND INDUSTRIAL WASTEWATER INTALLATION
NOTE: Maximum recommended starts should not exceed 10 times per hour.
MANUAL OPERATION
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.

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For manual operation: 208, 230, 460 & 575 volt: Attach the proper plug, connect directly
to the power source or control box. 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 receptacle (or equivalent) be
used.
STOPPING
To stop the pump (manual and automatic mode), unplug it from the power source, turn
off the breaker, or turn the power source off (generator).

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TYPICAL MUNICIPAL OR INDUSTRIAL WASTEWATER INSTALLATION
NOTE: Maximum recommended starts should not exceed 10 times per hour.
AUTOMATIC OPERATION
Three phase pumps need a separate control box with float(s) for automatic
operation.
STOPPING
To stop the pump (manual and automatic mode), unplug it from the power source, turn
off the breaker, or turn the power source off (generator).

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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 has been evaluated for use with water or water based solutions. Please
contact the manufacturer for additional information.

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THREE PHASE WIRING INSTRUCTIONS
FOR YOUR PROTECTION, ALWAYS DISCONNECT PUMP
FROM ITS POWER SOURCE BEFORE HANDLING.
“Risk of electrical shock” Do not remove power supply cord 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. Follow the instructions provided with the panel to wire the system. 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 lead of power cord (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.
DO NOT PLACE HANDS IN PUMP SUCTION WHILE CHECKING
MOTOR ROTATION. TO DO SO WILL CAUSE SERVER PERSONAL INJURY.
Three phase pumps have integral motor overload protection. It is recommended that all
three phase pumps using a motor starting device also 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.
TROUBLE SHOOTING
Disconnect the power source to the pump BEFORE attempting
any type of trouble shooting, service or repair.

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PUMP WILL NOT RUN
1. Check power supply (fuses, breaker). Reset power.
2. Blocked impeller. Check and clean.
3. Defective cable or incorrect wiring.
4. Float switch tangled/obstructed. Clean and free float switch from obstruction.
5. Float switch defective. Replace float switch.
6. Pump overheated or temperature of liquid exceeds pump operating
temperature.
Warning: 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.
The design of the “F” Series high temperature pump models is unique and
requires specific knowledge to perform the proper assembly. BJM
Pumps® recommends that all electrical service work be performed at the
factory or by a factory trained and certified repair technician to insure that
the materials and assembly methods meet BJM standards.
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.
•Preventative maintenance should be performed to reduce the chance of
premature failure.
•Worn impellers and lip seals should be replaced.

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•Cut or cracked power cords must be replaced. (Never operate a pump with a
cut, cracked or damaged power cord.)
•Seal oil should be checked once per year.
•Maintenance should always be done when taking a pump out of service before
storage.
•The impeller to suction cover clearance should be adjusted to between 0.01” to
0.02” for optimal pumping performance. Shim kits are available if adjustment is
required.
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.
BJM Pump Impeller Shimming
To optimize the shredding performance of the SK/SKX/SKG BJM model shredding
pumps, and to optimize the hydraulic performance of the S/SX/J/JX/R/RX/KZN/KB/KZE
model pumps, BJM Pumps offers an impeller shim kit. The shims are designed to go on
the shaft behind the impeller to adjust the clearance between the impeller vane and the
suction cover to the target specification of the 0.010 inch to 0.020 inch. Note that given
the vortex design, the SV model vortex pumps do not require shimming of the impeller
to gain optimal performance.
Impeller Shimming Procedure
1. Install the impeller on the shaft and snug the retaining nut to keep the impeller in
location with any axial movement on the shaft. Note that some single phase
pumps have impellers that thread onto the shaft.
2. Using a prying bar, make sure the impeller is pulled completely down and that
the bearings or mechanical seals are not pulling the shaft upwards (toward the
motor top cover).
3. Install the suction cover and snug the retaining fasteners.
4. Using an angled set of feeler gauges, measure the clearance between the
impeller and the suction cover. Perform this measurement in various locations
and find the smallest clearance. This will be your minimum starting clearance.
5. Remove the suction cover and the impeller of the pump.
6. Subtract 0.010 inch and 0.020 inch from the minimum starting clearance to gain
your recommended shim height.
7. Select a set of shims that will give you a measurement that fits between your
minimum and maximum calculated shim height. Note that the closer the
clearance is to 0.010 inch, the better the shredding and hydraulic performance of
the pump.
8. Install the selected shims onto the pump shaft. Then, replace the drive key and
the impeller. Install the locking washer and the impeller nut, tightening the nut to
the proper torque.

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9. Install the suction cover applying the proper torque to the remaining fasteners.
10. Using the angled set of feeler gauges, recheck the impeller clearance in various
locations. The measurement should fall between the 0.010 inch and 0.020 inch
specification. Caution, to not allow the clearance to be less than 0.010 inch since
this may cause undesirable rubbing of the impeller on the suction cover.
11. Repeat these steps as necessary to gain a clearance between the impeller and
the suction cover to 0.010 inch to 0.020 inch.
Shredder Element Assembly and Adjustment
1. Installing the Stationary Shredding Elements into Shredder Housing – Place
the axial cutter ring into the shredder housing with the angle of the cutter legs
slanting counter clockwise as shown in the picture. Note that this is a tight sliding
fit, so the parts must be aligned carefully. A plastic mallet can be used to
carefully to tap the stationary rings into place. Once the axial shredder ring has
been installed, it should be able to be rotated to align the mounting screw holes.
The radial cutter ring can be installed in the same manner. Once each ring has
been installed, the mounting holes should be aligned with the mounting holes in
the shredder housing. With a drop of 242 (blue) Loctite on each of the four M3
retaining screws, these can be added. Tighten carefully these are small screws.
Axial shredding ring with leg slanted counter clockwise.

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Radial shredder ring installed.
M3 hex socket fastener with 242 (blue) Loctite.

17
The shredder rings installed in the housing and retained with the four M3 screws.
2. Impeller Shimming – With the volute installed on the motor, the impeller is
added to the shaft. The suction cover is then added without the shredder housing
in place. An initial reading is taken on the gap between the impeller and the
suction cover with the feeler gauges. Shims are added and this step is repeated
until the gap is between 0.010” and 0.020”. Once the impeller gap has been set,
the suction cover can be mounted to the volute case.
Impeller shown on shaft. Note volute case has not been added to give clearer
picture of the impeller on the shaft.

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Feeler gauge shown between impeller vane and top of suction cover.
3. Installing the Shredder Housing – First apply a light coating of the Jet Lube
Marine Grade Anti-Seize to the shredder housing threads. Next thread the
housing into the suction cover until the housing has hit the bottom of the threads.
Add a light coating of the Jet Lube Marine Grade Anti-Seize to the inside threads
on the shredding cutting bar. Thread the bar onto the shaft and tighten with the
proper tools.
With the housing threaded completing into the suction cover, the shredder cutter
bar can be threaded onto the shaft to retain the impeller.

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The shredder cutting bar should be tightened to the proper torque using the
special socket tool on an impact driver.
Once the shredder cutting bar has been tightened to the shaft, verify that it can
spin freely. The cutter elements are sharp, so care should be taken not to cut
fingers.

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4. Shredder Cutting Element Adjustment – With all of the elements installed, the
housing should be rotated counter clockwise until the stationary axial cutting ring
is tight against the shredding cutter bar (and the housing will not turn any more).
Align the center of one of the stand mounting bosses with one of the 5 degree
markers cast into the shredding housing. With a paint pen or a light colored
Sharpie marker, mark the proper marker point that is aligned with the boss. Next
count 6 degree markers counter clockwise and make a paint mark. Rotate the
housing clockwise until the second mark is aligned with the boss. Add the 242
(blue) Loctite to the two M6 set screws and run them down until they hit. Once
the lock screws have hit the suction cover housing, tighten ¼ turn. Carefully
check to make sure the shredder cutting bar spins freely.
Mark the point where the stationary axial shredding ring interfaces with the
shredding cutter bar.