Polaris TBM 50 LH Series User manual

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 1of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
POLARIS SERIES TBM 50 LH ( 2" ) TYPE PHO / PBO / PVO
ELECTRO-SUBMERSIBLE PUMP
PUMP TYPE: TBM 50 LH ( 2" ) TYPE ( )
POLARIS PART NBR.: 700.200.05.
HP / V / Hz
/ Poles: / / /
INSULA
TION: FH 
EXPLOSION PROOF: 
CONTINUOUS IN AIR 
HIGH AMBIENT 90 Deg.C : 
LOW AMBIENT -25 Deg.C : 
EQUIPMENT OPTIONS:
IMPELLER TRIM: ( ) mm ( ) in.
POWER CABLE: TOTAL (FEET)
INTERNAL SLURRY SEAL 
SLURRY BOSS 
SLURRY BOSS QUENCH RING 
LIGHT DUTY SLURRY SEAL 
SEAL GUARD 
WATER JET RING 
WATER COOLING JACKET 
COAL TAR EPOXY 
DUROMAR®EPOXY 
PUMP SERIAL NUMBER:
DATE:
CUSTOMER:
CUSTOMER P.O. NBR.
SHIPPED TO:
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 2of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
TABLE OF CONTENTS
SECTION 1.0 INTRODUCTION
SECTION 2.0 WARRANTIES
SECTION 3.0 SAFETY
SECTION 4.0 MECHANICAL INSTALLATION
4.1 RECEIVING INSPECTION
4.2 STORAGE
4.2.1 NEW PUMP AND EQUIPMENT STORAGE
4.2.2 USED PUMP STORAGE
4.2.3 SPARE PARTS STORAGE
4.3 HANDLING
4.4 MECHANICAL SEAL INSPECTION
4.5 PUMP SET UP / MOUNTING
4.5.1 CABLE AND CHAIN SUSPENSION
4.5.2 OPTIONAL LIFTING / SUSPENSION BAIL MOUNTING
4.5.3 FLOOR MOUNTING
4.6 PIPING
4.6.1 DISCHARGE PIPING / DISCHARGE HOSE
4.6.2 PRIMARY SEAL FLUSH PIPING
4.6.3 OPTIONAL WATER JACKET / PIPING
4.6.4 OPTIONAL WATER JET RING
SECTION 5.0 ELECTRICAL INSTALLATION
5.1 GENERAL
5.2 MOISTURE DETECTION RELAY - THERMAL PROTECTION
5.3 INSTALLATION
REFER TO THE BALDOR®- RELIANCE®ELECTRIC MOTOR
INSTALLATION & OPERATING MANUAL FOR
AC SUBMERSIBLE PUMP MOTORS – MN414 (SECTION 8.2)
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 3of 30
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DATE: 08-23-2011
SECTION 6.0 OPERATION
6.1 PRE START UP CHECK
6.2 PUMP START UP
6.3 PUMP SHUT DOWN
6.4 TROUBLE SHOOTING
SECTION 7.0 WET END INSTALLATION
7.1 TBM 50 LH - Type PHO - Open Suction, Strainer
7.2 TBM 50 LH - Type PBO - Open Suction, Strainer, Solids Mixer Attachment
7.3 TBM 50 LH - Type PVO - Open Suction, Strainer, Shredder Attachment
SECTION 8.0 APPENDIX
8.1 PUMP GENERAL ARRANGEMENT DRAWING, TBM 50 LH – PHO / PBO / PVO
8.1.1 PUMP PERFORMANCE CURVE TYPE - PHO
8.1.2 PUMP PERFORMANCE CURVE TYPE - PBO
8.1.3 PUMP PERFORMANCE CURVE TYPE - PVO
8.2 BALDOR®- RELIANCE®ELECTRIC MOTOR
INSTALLATION & OPERATION MANUAL FOR
SUBMERSIBLE PUMP MOTORS – MN414
8.3 -
8.4 IMPELLER INSTALLTION / BOLT TORQUE SPECIFICATIONS
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 4of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
1.0 INTRODUCTION
Your new Series TBM pump has been designed and manufactured to perform for many years
with a minimum of maintenance. However, parts will wear and need replacing eventually. The
period between maintenance will greatly depend on the service and your maintenance program.
Series TBM pumps are heavy duty submersible slurry pumps featuring motor armatures with a
nominal service factor up to 2 depending on pump wet end and motor combination.
Pumps with standard F-Class motors are designed to operate submersed in slurry or other water
based liquids with temperatures not exceeding 40°C (104°F).
60°C (140°F) temperatures and / or dry-running applications can be configured with an H-Class
motor and / or an optional water jacket.
Special High Temp rated motors to 90°C (194°F) and 95°C (203°F) are available for hot sump
applications. Special Low Temp rated motors to -25°C (-13°F) are also available.
A range of available motor seal options, starting with our continuous run dry capable internal
slurry seal, can be combined with our motor and wet end options to configure a submersible pump
package that can handle the most severe duties in applications across a broad spectrum of
industries.
Motor modules of series TBM can be ordered in standard configuration
or as explosion proof units per
Class 1, Groups C&D, Temperature code T3C
UL Listed, File No. E10822
CSA Certified, File No. LR19467-15 (Frames 140,180,210,250 & 360)
CSA Certified, File No. LR19467-15 (Frame 320)
This manual has been compiled to help you minimize your maintenance and speed repairs when
required. Read and understand this manual.
Please provide the Serial Number of your equipment if additional manuals are needed.
WHEN ORDERING PARTS ALWAYS REFER TO PUMP SERIAL NUMBER.
THIS NUMBER IS FOUND ON THE NAMEPLATE ON THE PUMP.
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 5of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
2.0 WARRANTIES
Seller warrants that the products covered by this contract conform to applicable drawings and
specifications accepted in writing by Seller, will be free from defects in material and workmanship,
will be merchantable and will perform in accordance with the detailed specifications accepted in
writing by Seller.
These warranties extend for a period of twelve (12) months from the date of purchase by Buyer.
Buyer’s exclusive remedy and Seller’s sole duty under these warranties is to repair or replace the
product. Normal wear and tear on Seller’s product shall not constitute a warranty defect.
THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH EXTEND BEYOND THOSE SET
FORTH ABOVE. THE WARRANTY OF MERCHANTABILITY IS LIMITED TO THE PERIOD SPECIFIED ABOVE.
These warranties are contingent upon the product being stored, installed, maintained, and
operated in accordance with good engineering practices and the instructions contained in the
Operating and Maintenance Manual. Failure to do so shall operate to void all warranties.
Seller’s total responsibility for damages whether arising in contract or tort arising out of or relating
to the performance of the product or the warranties hereunder shall be strictly limited to the
contract price for the product. In no event shall Seller be liable for any incidental or consequential
damages such as lost profits, loss of use of productive facilities or equipment, expenses or
damages incurred in reliance on the product's performance or lost production whether suffered by
buyer or any third party.
Seller warrants that the products comply with OSHA standards on drive guard design and
construction (if applicable) in effect at the time of manufacture and makes no other warranty with
respect to any other standards. Seller shall not be responsible for failure of parts to fit properly
due to deterioration of or modification to Buyer’s existing equipment for which such parts are
furnished.
Seller makes no warranty or guarantee that the product supplied hereunder will comply with the
performance of Buyer’s existing equipment.
Seller reserves the right to furnish substitutes for material not available or whose use is restricted.
The use of (a) non-OEM components or (b) non-OEM pump spare parts and/or (c) non-approved
modifications to the product and/or (d) failure to install a moisture detection relay and/or (e) failure
to connect the thermal overload protection wiring will operate to void all warranties.
We reserve the right to change the design, construction or material of any part without incurring
the obligation of installing such changes on pumps already delivered.
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 6of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
3.0 SAFETY
Do not install the equipment other than in accordance with the instructions contained in this
manual.
When required information cannot be found in this manual, contact the nearest POLARIS PUMPS
representative.
This instruction book should be read completely before starting installation, maintenance or
operation. The equipment is capable of trouble free operation when properly installed, operated
and maintained. These instructions present the basic information and methods required for
proper installation and maintenance.
This pump has been designed to provide safe and reliable service, however as with all equipment
of this type, the operator(s) must exercise good judgment and proper safety practices to avoid
damage to the equipment and surroundings and to avoid personal injury. The instructions in this
manual are intended for personnel with a general training in operation and maintenance of
centrifugal pumps and electric motors.
It is assumed that your safety department has established a safety program based upon a
thorough analysis of industrial hazards. Before installing, operating or performing maintenance on
the pump and associated components described in this manual, it is suggested that the safety
program be reviewed to ensure that it covers the hazards arising from rotating- and electrical
machinery. In general, all personnel should be guided by all the basic rules of safety associated
with the equipment and the process.
It should be understood that the information contained in this manual does not relieve operating
and maintenance personnel of the responsibility of exercising normal good judgment in operation
and care of the pump and its components.
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 7of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
4.0 INSTALLATION
4.1 RECEIVING INSPECTION
The unit must be inspected immediately upon arrival and any irregularities and damages
due to shipment must be reported to the carrier and POLARIS PUMPS. A copy of this
manual is included in the shipment. Put this manual a safe, accessible place for ready
reference when required. It is important that the entire contents of this manual are studied
before installation.
Pump parts and accessories may be packed inside shipping container, or attached to skids
in individual packages. Inspect all containers, crates and skids before discarding.
4.2 STORAGE
4.2.1 NEW PUMP AND EQUIPMENT STORAGE
If your new pump is to be stored for a long period before use, the following
procedures must be adhered to in order for POLARIS PUMPS to extend the normal
warranties.
Notify POLARIS PUMPS that the equipment is to be stored and that the storage
procedures will be followed. Notify POLARIS PUMPS when the equipment is to be
removed from storage and put into service.
Failure to notify POLARIS PUMPS will result in your warranty being void. Your new
pump will arrive ready for use. Close off all flush and cooling water inlet ports and
cooling water exhaust ports on water jackets. Suitable covers out of plywood or
plastic must be installed on the suction entrance and discharge to provide adequate
protection against dirt, dust and nesting animals. The main power and control cable
ends must be protected by means of suitable shrink-on boots or similar to prevent
the ingress of moisture during storage.
Equipment should be stored in a dry location and situated on an even surface with
no strains applied. If stored outdoors, the equipment must be covered with a
waterproof tarp secured to the equipment or skid.
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 8of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
4.2.2 USED PUMP STORAGE
A used pump should be completely disassembled and all parts cleaned and
inspected. All unpainted metal surfaces should be coated with grease or suitable
protectant. All previously painted parts should be touched up or repainted.
Reassemble the pump as per Sections 7.0 and store as per Section 4.2.1.
4.2.3 SPARE PARTS STORAGE
Spare parts may not arrive at your site with adequate protection for long-term
storage unless it was specified in your parts order. It is the customer's responsibility
to ensure that all spare parts are prepared and packaged for long term storage.
Components such as mechanical seal assemblies and parts should be left in their
original sealed containers. The long-term storage of elastomer (rubber) parts must
be given consideration since elastomers may have a short shelf live under certain
circumstances.
4.3 HANDLING
Use care when moving pumps. Sling pumps so that any protruding components will not be
damaged. Do not use choke type sling or chain arrangements for skids or containers.
Make sure that the lifting equipment is rated to safely handle the weight of the pump and
auxiliary equipment.
See relevant general arrangement drawings (Section 8.0) or bills of materials for weight
information.
4.4 MECHANICAL SEAL INSPECTION
The pump was checked during assembly and testing for proper alignment of the pump
components. Rough handling during shipment, storage or preparation for installation could
cause damage to mechanical seals. POLARIS PUMPS are equipped with tandem
mechanical seals and should be checked for any oil leakage on the wet end side. This is to
ensure that the seal faces did not receive any damage during shipment, storage or
preparation for installation.
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 9of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
4.5 PUMP SET UP / MOUNTING
4.5.1 CABLE AND CHAIN SUSPESION
Pumps of SERIES TBM are fitted with integral lifting lugs sized to accommodate the
dead weight of the pump assembly. Verify the weight of your specific pump before
making lifting cable or chain selection.
See relevant general arrangement drawings (Section 8.0) or bills of materials for
weight information.
4.5.2 OPTIONAL LIFTING / SUSPENSION BAIL MOUNTING
Optional lifting bails are available for all pumps of SERIES TBM for applications
where a single lifting cable or chain is preferred.
4.5.3 FLOOR MOUNTING
When Pumps are operated resting on the pump stand on the sump floor, they must
rest on a horizontal surface that prevents the pump from tipping over and burying
itself. A chain or cable with limited slack can be utilized to prevent this.
4.6 PIPING
4.6.1 DISCHARGE HOSE / DISCHARGE PIPING
Flexible, heavy duty, non-collapsible discharge hose is preferred.
All rigid piping must be independently supported. Pump casing should never bear
the weight of the piping. Non-collapsible, expansion type joints are recommended on
the discharge side of the pump for rigid pipe installations.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 10of 30
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DATE: 08-23-2011
4.6.2 PRIMARY SEAL FLUSH
Polaris pumps equipped with the standard, run dry capable internal slurry seal
arrangement do not require an external seal flush or cooling. They are cooled and
lubricated by the oil contained in the seal chamber.
The seal flush / cooling water for the available outboard mechanical seal options is
automatically supplied if the pump is running. Be aware that if pumps equipped with
outboard seals are operated in applications where the sump can be pumped dry, a
minimum water level must be present to prevent the mechanical seal from dry
running. If the sump level falls below the minimum requirement, the higher than
normal seal temperatures could cause the outboard seal faces to crack due to
thermal shock once the sump water level rises back and quenches the hot seal
faces.
Refer to the general arrangement drawing of your pump (Section 8.0) for the
minimum sump level requirement and install suitable level controls.
4.6.3 OPTIONAL WATER JACKET / PIPING
Unless equipped with a continuous dry run rated motor, an optional water jacket
must be installed if the pump is operated in applications where the sump can be
pumped dry below the minimum water level and the pump remains running under
full load for periods exceeding 15 minutes. This is to prevent overheating and
subsequent burnout of the stator windings.
Cooling water should be 5 GPM at 35 P.S.I. maximum pressure at a
temperature not exceeding 40◦C (104◦F).
Water must be clean so that no sand, etc., is pumped into the water jacket.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 11of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
5.0 ELECTRICAL INSTALLATION
5.1 GENERAL
Power supply and electrical work must be as per local and national codes. All wiring
and installation of cables, relays, disconnects, etc., should be performed by qualified
personnel. Check that main line voltage and frequency agree with the specifications
on the motor data plate. Prior to installation of any wiring, inspect both main power
and control cable for possible cuts and tears.
5.2 MOISTURE SENSOR RELAY
Failure to install / operate a suitable Motor Moisture Detection Relay and not
connecting the thermal over-load wiring will void your Warranty.
POLARIS PUMPS requires the end user to install a suitable moisture detection relay
that must be installed and operational with your pump to validate your warranty.
Suitable Controls are as follows:
WARRICK®TYPE 2810
AMETEK ®8040
Pump Saver®Model 460-15-100-SLD
5.3 INSTALLATION
All activities related to the electrical installation, maintenance and operation and
service of the motor module must be in accordance with the
BALDOR®- RELIANCE®ELECTRIC MOTOR
INSTALLATION & OPERATING MANUAL FOR
AC SUBMERSIBLE PUMP MOTORS – MN414 (SECTION 8.2)
See Section 8.2 of this pump manual.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 12of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
6.0 OPERATION
6.1 PRE-START UP CHECK
A pre-start up check should always be performed prior to putting your pump into
service. The following procedures should be adhered to as a minimum.
•POWER SUPPLY
Double-check and confirm that the power supply voltage and frequency match
with the pump data plate.
•WIRING
Double-check all power and control cable connections. Check and confirm that
all ground leads are connected and properly grounded.
•CONTROL SYSTEM
Double-check that all control equipment is powered up and operational.
•CABLES
Inspect both power and control cables for visual damage such as cuts and tears
in the jacket.
•OIL LEVEL
Double-check the motor seal oil level (N/A if equipped with Reliance Motor)
•ROTATION CHECK
Correct rotation is counter clock wise as viewed from the pump intake side. In
case of wrong rotation, switch two of the three main power leads. Do not run the
pump in air longer than required to verify proper rotation.
•COOLING AND FLUSH WATER
Double-check all connections, hoses and piping and ensure that the water supply
is turned on for applications requiring motor cooling. Visually confirm that the
cooling water is circulating and exiting through the exhaust opening of the water
jacket prior to start up.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 13of 30
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DATE: 08-23-2011
6.2 PUMP START UP
Whenever possible, start the pump in clear liquid to prime discharge piping and/or
hoses. If flexible hoses are used, make sure that they are not pinched since the
pressure developed by the pump may not be enough to force them open.
Lower the pump slowly into the material to be pumped.
Mixture density can be monitored via a current meter. Higher current draw of the
pump will indicate higher density and therefore higher production rate. The mixture
density can be controlled by raising or lowering the pump into the material.
Be aware of the mixture characteristics for your specific application. It is important
that you maintain a pipeline velocity above the critical settling velocity of the solids
mixture being pumped to prevent the solids from settling out and clogging the
discharge line.
Never stop the pump while pumping solids through the system. This will plug the
piping. Before shut down, raise the pump into clean water and completely flush the
discharge line.
During the initial few days of operation while all parts are still new, observe the
discharge gauge readings as well as the motor amperage draw. If a flow meter is
available, monitor the pump output as well.
These readings should be taken and recorded periodically and will help you to
establish an inspection and maintenance schedule. Keeping track of your pumps
performance will make it easier to identify problems before they become serious and
cause undue damage.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 14of 30
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DATE: 08-23-2011
6.3 PUMP SHUT DOWN
Never stop the pump while pumping solids through the system. This will plug the
piping. Lift the pump into clear fluid for as long as it takes to flush the entire system
of any slurry.
IMPORTANT
If you operate and store your pump in environments subject to below-freezing
temperatures:
1. After the pump has been shut down, completely drain wet end, water jacket
and piping. Failure to do so will result in serious damage to your equipment.
2. Be aware that the motor seal oil can thicken during cold storage to the point
where it will be too viscous and can not provide adequate lubrication for start-
up. Pre-heat the pump as required before start up.
3. Be aware that certain elastomer components (lip seals, o-rings etc.) must not
be operated if their temperature is below -4°F (-20°C). Pre-heat the pump as
required before start up.
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POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 15of 30
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DATE: 08-23-2011
6.4 TROUBLE SHOOTING
6.4.1 FAULT TRACING
To carry out fault tracing on electrical equipment, a multi-meter, test lamp and wiring
diagram are required. Fault tracing must be done with the power disconnected
unless checks cannot be performed without power to the motor. If a fault is detected,
be sure to keep all personnel clear of the pump when the power is turned on. A
qualified electrician must perform all electrical work. Obey all local codes and
regulations and follow recommended safety procedures.
The following Checklist is designed to aid in identifying possible faults, assuming the
pump has been in operation and functioned previously.
All activities related to the electrical installation, maintenance and operation and
service of the motor module must be in accordance with the
BALDOR®- RELIANCE®ELECTRIC MOTOR
INSTALLATION & OPERATION MANUAL FOR
SUBMERSIBLE PUMP MOTORS – MN414
See Section 8.2 of this pump manual.
- FAULT SIGNAL AT THE STARTER
If the stator temperature is too high, check that the pump motor is completely
submerged or that the water supply to the water jacket is turned on during operation
and that the impeller rotates freely.
In case of a moisture sensor fault, check the condition of the oil and check for water
in the motor housing and oil sump. Make sure the overload protection is reset.
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DATE: 08-23-2011
- FAULT SIGNAL AT THE STARTER, PUMP CAN BE STARTED MANUALLY
Check for faulty level-control system components (start or high water sensors).
Clean or replace as required.
Check for faulty control equipment. Check that all connections are intact. Check
relay and actuator windings. Test actuator switch for contact in both manual and
automatic mode.
- PUMP CAN NOT BE STARTED MANUALLY, NO VOLTAGE TO PUMP
Check that the main power switch is on. Check for control voltage to the starter
equipment and that all fuses are intact.
Check that all supply line phases are live and that all fuses are intact and properly
fitted. Check that the overload protection relay is reset. Check for breaks in the
motor cable.
- PUMP CAN NOT BE STARTED MANUALLY, VOLTAGE IS GOING TO PUMP
If this is the case, some oversized material or other debris may have jammed the
impeller, solids mixer or shredder.
CAUTION: Disconnect and lock out the main power supply before working in the
intake area of the pump. Failure to do so can result in serious injury.
Clean out and remove any objects that may have jammed the impeller and inspect
the pump components for any visual damage. Inspect the sump area and remove
any oversized material and debris. Inspect pump strainer for excessive wear and
replace if required.
- PUMP CAN BE STARTED, MOTOR PROTECTION TRIPS
Check that the overload protection is not set too low or is defective. Check the
breaker set point vs. the amperage on the motor data plate and adjust or replace
overload protection relay as required.
Check for free rotation of the impeller. If it is not easily rotated, or feels tight, check
for tramp material within the pump. Using an Amp-meter, check the current on all
three phases. Using a Meg-ohm meter, check the insulation between the phases
and ground. If the phase amp readings are too high or uneven, or a ground fault is
detected, contact POLARIS PUMPS.
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- PUMP IS EXPECTED TO STOP BUT KEEPS RUNNING
If the pump has been running satisfactory and is capable of emptying the
sump to the control stop level, check for leakage in discharge piping and
connections. Leakage water may be re-circulated back into the sump.
Check that the impeller or suction is not clogged.
CAUTION: Disconnect and lock out the main power supply before working in
the intake area of the pump. Failure to do so can result in serious injury.
Clean out and remove any objects that may have clogged the impeller and
inspect the pump components for any visual damage. Inspect the sump area
and remove any oversized material and debris. Inspect pump strainer for
excessive wear and replace if required.
Check that the impeller and casing are not worn and need to be replaced.
Check the impeller running clearance and adjust as required.
Check for faults in the level control equipment. Clean and inspect the level
sensor probes and perform a function test. Check the level control relay
contactor and holding circuit. Replace any faulty components. Check the
location of the stop level probe to ensure it is not set too low.
- PUMP STARTS AND STOPS REPEATEDLY
Check if the back flow from the discharge pipe is enough to raise the sump
level to the level-controller starting probe. If so, positioning a rubber flap valve
in the discharge pipe close enough to the pump will minimize back-flow.
Check that the distance between start and stop level probes is not too short.
Check that the contactor does not break its self-holding function. Check the
voltage in the control circuit in relation to the rated voltage on the coil. Check
the functioning of the stop sensor probe. The voltage drop in the line during
the start-up surge can cause the contactor self-holding function to break.
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- PUMP IS RUNNING WITH REDUCED FLOW
This can be caused by either pump and / or system related problems.
Check your system set-up:
Verify that all piping connections are tight and that there are no leaks in the
discharge line.
Check that any valves are fully open and operable and the discharge line and
valves are not clogged.
Check your system-head requirement. The pump flow will reduce if the point
of discharge has been raised or additional piping has been added.
Check your pump:
Verify proper direction of rotation.
Check the pump intake area to ensure that the impeller, strainer and mixer or
shredder is not clogged.
Visually inspect the wet-end components for wear. The performance of the
pump can be significantly reduced if casing and impeller have experienced
excessive wear. Check the impeller running clearance and adjust if required.
Replace parts as required.
Copyright Polaris Pumps LLC

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 19of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
7.0 WET END INSTALLATION
Inspect and inventory all parts before you begin assembly. Clean all parts and
remove protective coatings as required. Inspect the motor module for any visual
damage paying particular attention to the shaft end and mechanical seal. Remove
any protective coatings from the shaft end and check to make sure that the tapped
hole in the end of the shaft and the key seat are free of any shavings and dirt. Prior
to the physical assembly of the wet end, familiarize yourself with all of the
components and the assembly sequence by reading the assembly instructions and
the enclosed explosion drawings. Based on your particular pump model and size
gather the necessary tools as per the following tool list.
TOOL REQUIREMENTS
SERIES TBM - 50 LH, 75 LH, 100 LH - Type PHO
-Allen wrenches 3/8” - 10 mm - 4 mm, Torque Wrench
-Plastic or Rubber Hammer
-Nickel Based “Never-Seize” or “Molykote®”
-Loctite® 262 High Strength or Devcon® Super Lock 2271
-Loctite® 242 Medium Strength
SERIES TBM - 50 LH, 75 LH, 100 LH - Types PBO / PVO
-Allen wrenches 3/8” - 10 mm – 4 mm - 3 mm, Torque Wrench
-Open ended wrenches 13/16” or 21 mm – (15/16” or 24 mm for 150 LH only)
-Plastic or Rubber Hammer
-Nickel Based “Never-Seize” or “Molykote®”
-Loctite® 262 High Strength or Devcon® Super Lock 2271
-Loctite® 242 Medium Strength
Copyright Polaris Pumps LLC

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 50 LH ( 2” ) - TYPE PHO / PBO / PVO 20of 30
DOCUMENT NBR. : A0450 REVISION: 4 EFFECTIVE
DATE: 08-23-2011
7.1 TBM 50 LH - TYPE PHO Drawing A0112 and A0124
Refer to Appendix 8.4 (A0432) for Fastener Torque requirements
Apply "Never-Seize" to the motor shaft end. Position Flinger Gasket (Item 060.2)
onto shaft. Insert Drive Key (Item 113) into the key seat. Slide Flinger (Item 110)
onto the shaft. Position Impeller Gasket (Item 060.1) against the Impeller flinger.
Hoist the Volute Casing (Item 102) into position and insert into the motor flange
spigot. Apply Loctite® 242 to the Socket Head Cap Screws and insert with Lock
Washers (Items 040.1, 040.3) through the motor flange into the Casing and tighten.
Slide the Impeller (Item 101) onto the shaft. Position the O-ring (Item 062.2) onto the
Impeller Cap (Item 107) and the same into the impeller bore, lining up the groove in
the cap face with the key. Position O-Ring (Item 062.1) onto the Impeller Lock Screw
(Item 040.2), apply Loctite® 262 and insert into the shaft end and tighten.
Refer to Appendix 8.4 (A0431) for Impeller Installation and Lock Screw Torque
Position Casing Gaskets (Item 060.5) onto Strainer (Item 103), aligning the holes. To
verify the impeller running clearance, compare the depth from the top of the strainer
to the gaskets with the depth from the casing face to the impeller vanes. The total
difference should be 1/32” – 1/16”. Adjust as necessary by adding or subtracting
casing gaskets.
Slide strainer and gaskets into the casing bore. Position the Pump Stand (Item 112)
over the strainer, insert Loctite® 242 coated Socket Head Cap Screws and Lock
Washers (Items 040.1, 040.3) and tighten.
Apply Loctite® 242 to the Countersunk Head Cap Screws (Item 040.7), insert the
Intake Screen (Item 111) and screws into the strainer and tighten.
Copyright Polaris Pumps LLC