The purpose of this manual is to provide necessary information for:
• Installation
• Operation
• Maintenance
CAUTION:
Read this manual carefully before installing and using the product. Improper use of the product can
cause personal injury and damage to property, and may void the warranty.
NOTICE:
Save this manual for future reference, and keep it readily available at the location of the unit.
Requesting other information
Special versions can be supplied with supplementary instruction leaflets. See the sales
contract for any modifications or special version characteristics. For instructions, situations, or
events that are not considered in this manual or in the sales documents, please contact the
nearest ITT representative.
Always specify the exact product type and identification code when requesting technical
information or spare parts.
Safety
WARNING:
• The operator must be aware of safety precautions to prevent physical injury.
• Any pressure-containing device can explode, rupture, or discharge its contents if it is overpressurized. Take all necessary measures to avoid over-pressurization.
• Operating, installing, or maintaining the unit in any way that is not covered in this manual could
cause death, serious personal injury, or damage to the equipment. This includes any modification to
the equipment or use of parts not provided by ITT. If there is a question regarding the intended use of
the equipment, please contact an ITT representative before proceeding.
• This manual clearly identifies accepted methods for disassembling units. These methods must be
adhered to. Trapped liquid can rapidly expand and result in a violent explosion and injury. Never
apply heat to impellers, propellers, or their retaining devices to aid in their removal unless explicitly
stated in this manual.
• If the pump/motor is damaged or leaking, do not operate as it may cause an electric shock, fire,
explosion, liberation of toxic fumes, physical harm, or environmental damage. Correct/repair the
problem prior to putting back in service.
• Do not change the service application without the approval of an authorized ITT representative.
CAUTION:
You must observe the instructions contained in this manual. Failure to do so could result in physical
injury, damage, or delays.
4Installation, Operation, and Maintenance Manual
Page 7
Safety terminology and symbols
About safety messages
It is extremely important that you read, understand, and follow the safety messages and
regulations carefully before handling the product. They are published to help prevent these
hazards:
• Personal accidents and health problems
• Damage to the product
• Product malfunction
Hazard levels
Hazard levelIndication
DANGER:result in death or serious injury
Introduction and Safety
A hazardous situation which, if not avoided, will
Hazard categories
WARNING:result in death or serious injury
CAUTION:result in minor or moderate injury
NOTICE:
A hazardous situation which, if not avoided, could
A hazardous situation which, if not avoided, could
• A potential situation which, if not avoided,
could result in undesirable conditions
• A practice not related to personal injury
Hazard categories can either fall under hazard levels or let specific symbols replace the
ordinary hazard level symbols.
Electrical hazards are indicated by the following specific symbol:
Electrical Hazard:
These are examples of other categories that can occur. They fall under the ordinary hazard
levels and may use complementing symbols:
• Crush hazard
• Cutting hazard
• Arc flash hazard
The Ex symbol
The Ex symbol indicates safety regulations for Ex-approved products when used in
atmospheres that are potentially explosive or flammable.
Environmental safety
The work area
Always keep the station clean to avoid and/or discover emissions.
Installation, Operation, and Maintenance Manual5
Page 8
Introduction and Safety
Waste and emissions regulations
Observe these safety regulations regarding waste and emissions:
• Appropriately dispose of all waste.
• Handle and dispose of the processed liquid in compliance with applicable environmental
regulations.
• Clean up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
WARNING:
Do NOT send the product to the ITT manufacturer if it has been contaminated by any nuclear radiation.
Inform ITT so that accurate actions can take place.
Electrical installation
For electrical installation recycling requirements, consult your local electric utility.
Recycling guidelines
Always follow local laws and regulations regarding recycling.
User safety
General safety rules
These safety rules apply:
• Always keep the work area clean.
• Pay attention to the risks presented by gas and vapors in the work area.
• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash hazards.
• Always bear in mind the risk of drowning, electrical accidents, and burn injuries.
Safety equipment
Use safety equipment according to the company regulations. Use this safety equipment within
the work area:
• Helmet
• Safety goggles, preferably with side shields
• Protective shoes
• Protective gloves
• Gas mask
• Hearing protection
• First-aid kit
• Safety devices
Electrical connections
Electrical connections must be made by certified electricians in compliance with all international, national, state, and local regulations. For more information about requirements, see sections
dealing specifically with electrical connections.
Precautions before work
NOTICE:
Never operate a unit unless safety devices are installed. Also see specific information
about safety devices in other chapters of this manual.
Observe these safety precautions before you work with the product or are in connection with
the product:
6Installation, Operation, and Maintenance Manual
Page 9
• Provide a suitable barrier around the work area, for example, a guard rail.
• Make sure that all safety guards are in place and secure.
• Make sure that you have a clear path of retreat.
• Make sure that the product cannot roll or fall over and injure people or damage property.
• Make sure that the lifting equipment is in good condition.
• Use a lifting harness, a safety line, and a breathing device as required.
• Allow all system and pump components to cool before you handle them.
• Make sure that the product has been thoroughly cleaned.
• Disconnect and lock out power before you service the pump.
• Check the explosion risk before you weld or use electric hand tools.
Precautions during work
Observe these safety precautions when you work with the product or are in connection with the
product:
CAUTION:
Read this manual carefully before installing and using the product. Improper use of the product can
cause personal injury and damage to property, and may void the warranty.
• Never work alone.
• Always wear protective clothing and hand protection.
• Stay clear of suspended loads.
• Always lift the product by its lifting device.
• Beware of the risk of a sudden start if the product is used with an automatic level control.
• Beware of the starting jerk, which can be powerful.
• Rinse the components in water after you disassemble the pump.
• Do not exceed the maximum working pressure of the pump.
• Do not open any vent or drain valve or remove any plugs while the system is pressurized.
• Never operate a pump without a properly installed coupling guard.
Introduction and Safety
Make sure that the pump is isolated from the system and that pressure is relieved before
you disassemble the pump, remove plugs, or disconnect piping.
Hazardous liquids
The product is designed for use in liquids that can be hazardous to your health. Observe these
rules when you work with the product:
• Make sure that all personnel who work with biologically hazardous liquids are vaccinated
against diseases to which they may be exposed.
• Observe strict personal cleanliness.
• A small amount of liquid will be present in certain areas like the seal chamber.
Wash the skin and eyes
1. Follow these procedures for chemicals or hazardous fluids that have come into contact with
your eyes or your skin:
ConditionAction
Chemicals or hazardous
fluids in eyes
Chemicals or hazardous
fluids on skin
Installation, Operation, and Maintenance Manual7
1. Hold your eyelids apart forcibly with your fingers.
2. Rinse the eyes with eyewash or running water for at least
15 minutes.
3. Seek medical attention.
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least 1 minute.
3. Seek medical attention, if necessary.
Page 10
Introduction and Safety
Ex-approved products
Follow these special handling instructions if you have an Ex-approved unit.
Personnel requirements
These are the personnel requirements for Ex-approved products in potentially explosive
atmospheres:
• All work on the product must be carried out by certified electricians and ITT-authorized
mechanics. Special rules apply to installations in explosive atmospheres.
• All users must know about the risks of electric current and the chemical and physical
characteristics of the gas, the vapor, or both present in hazardous areas.
• Any maintenance for Ex-approved products must conform to international and national
standards (for example, IEC/EN 60079-17).
ITT disclaims all responsibility for work done by untrained and unauthorized personnel.
Product and product handling requirements
These are the product and product handling requirements for Ex-approved products in
potentially explosive atmospheres:
• Only use the product in accordance with the approved motor data.
• The Ex-approved product must never run dry during normal operation. Dry running during
service and inspection is only permitted outside the classified area.
• Before you start work on the product, make sure that the product and the control panel are
isolated from the power supply and the control circuit, so they cannot be energized.
• Do not open the product while it is energized or in an explosive gas atmosphere.
• Make sure that thermal contacts are connected to a protection circuit according to the
approval classification of the product, and that they are in use.
• Intrinsically safe circuits are normally required for the automatic level-control system by the
level regulator if mounted in zone 0.
• The yield stress of fasteners must be in accordance with the approval drawing and the
product specification.
• Do not modify the equipment without approval from an authorized ITT representative.
• Only use parts that are provided by an authorized ITT representative.
Description of ATEX
The ATEX directives are a specification enforced in Europe for electrical and non-electrical
equipment installed in Europe. ATEX deals with the control of potentially explosive atmospheres and the standards of equipment and protective systems used within these atmospheres. The relevance of the ATEX requirements is not limited to Europe. You can apply these
guidelines to equipment installed in any potentially explosive atmosphere.
Guidelines for compliance
Compliance is fulfilled only when you operate the unit within its intended use. Do not change
the conditions of the service without the approval of an ITT representative. When you install or
maintain explosion proof products, always comply with the directive and applicable standards
(for example, IEC/EN 60079–14).
Monitoring equipment
For additional safety, use condition-monitoring devices. Condition-monitoring devices include
but are not limited to these devices:
• Pressure gauges
• Flow meters
• Level indicators
• Motor load readings
8Installation, Operation, and Maintenance Manual
Page 11
• Temperature detectors
• Bearing monitors
• Leak detectors
• PumpSmart control system
Product warranty
Coverage
ITT undertakes to remedy faults in products from ITT under these conditions:
• The faults are due to defects in design, materials, or workmanship.
• The faults are reported to an ITT representative within the warranty period.
• The product is used only under the conditions described in this manual.
• The monitoring equipment incorporated in the product is correctly connected and in use.
• All service and repair work is done by ITT-authorized personnel.
• Genuine ITT parts are used.
• Only Ex-approved spare parts and accessories authorized by ITT are used in Ex-approved
products.
Limitations
The warranty does not cover faults caused by these situations:
• Deficient maintenance
• Improper installation
• Modifications or changes to the product and installation made without consulting ITT
• Incorrectly executed repair work
• Normal wear and tear
ITT assumes no liability for these situations:
• Bodily injuries
• Material damages
• Economic losses
Introduction and Safety
Warranty claim
ITT products are high-quality products with expected reliable operation and long life. However,
should the need arise for a warranty claim, then contact your ITT representative.
Installation, Operation, and Maintenance Manual9
Page 12
Transportation and Storage
Transportation and Storage
Inspect the delivery
Inspect the package
1. Inspect the package for damaged or missing items upon delivery.
2. Note any damaged or missing items on the receipt and freight bill.
3. File a claim with the shipping company if anything is out of order.
If the product has been picked up at a distributor, make a claim directly to the distributor.
Inspect the unit
1. Remove packing materials from the product.
Dispose of all packing materials in accordance with local regulations.
2. Inspect the product to determine if any parts have been damaged or are missing.
3. If applicable, unfasten the product by removing any screws, bolts, or straps.
For your personal safety, be careful when you handle nails and straps.
4. Contact your sales representative if anything is out of order.
Transportation guidelines
Pump handling and lifting
Precautions for moving the pump
Use care when moving pumps. Consult with a lifting and rigging specialist before lifting or
moving the pump to avoid possible damage to the pump or injury to personnel.
WARNING:
Make sure that the unit cannot roll or fall over and injure people or damage property.
NOTICE:
Use a forklift truck with sufficient capacity to move the pallet with the pump unit on top.
Precautions for lifting the pump
WARNING:
Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear steeltoed shoes at all times.
NOTICE:
• Make sure that the lifting equipment supports the entire assembly and is only used by
authorized personnel.
• Do not attach sling ropes to shaft ends.
Lifting the pump
Hoist a bare pump using suitable slings under the bearing housing saddle on each end.
Figure 1: Example of the proper lifting method for a bare pump
10Installation, Operation, and Maintenance Manual
Page 13
Transportation and Storage
Figure 2: Example of the proper lifting method for a bare pump
Baseplate-mounted units have lifting points for use with proper lifting devices.
Figure 3: Example of the proper lifting method for baseplate-mounted units without a driver
Installation, Operation, and Maintenance Manual11
Page 14
Transportation and Storage
Figure 4: Example of the proper lifting method for baseplate-mounted units with a driver
Storage guidelines
Long-term storage
If the unit is stored for more than 6 months, these requirements apply:
• Store in a covered and dry location.
• Store the unit free from heat, dirt, and vibrations.
• Rotate the shaft by hand several times at least every three months.
Treat bearing and machined surfaces so that they are well preserved. Refer to the drive unit
and coupling manufacturers for their long-term storage procedures.
For questions about possible long-term storage treatment services, please contact your local
ITT sales representative.
12Installation, Operation, and Maintenance Manual
Page 15
Product Description
General description
Product description
The Model 3610 is a horizontal centrifugal pump that meets the requirements of API 610 8th
through 11th Editions (ISO 13709 1st and 2nd Editions) and has these characteristics:
• Safety, Reliability, and Versatility
• Axially-Split
• Single-stage
• Between the bearings
Product Description
Casing
The flanges are ASME Class 300 raised-face serrated with a 125-250 RMS finish. Other
flanges are also available:
• ASME Class 300 ring joint
• ASME Class 600 raised-face serrated
• ASME Class 600 ring joint
Impeller
The impeller is fully closed and key driven.
Seal chamber
The seal chamber meets API 682 2nd Edition dimensions for improved performance of
mechanical seals. Customer-selected cartridge mechanical seals are standard.
Power end
The power end has these characteristics:
• Carbon steel bearing housings are standard.
• The oil level is viewed through a sight glass.
• Constant-level oilers and labyrinth seals are standard.
Installation, Operation, and Maintenance Manual13
Page 16
Product Description
Bearings
Shaft
• No machining is required in order to convert the standard ring oil lube to either purge or
pure mist. Pure mist applications require minor bearing housing modifications.
• Pressure lubrication is required with hydrodynamic thrust bearings.
Bearing typeCharacteristics
Inboard (radial)
Outboard (thrust)
• Consists of a single-row deep-groove ball bearing (standard)
• Carries only radial load
• Optional sleeve bearings
• Consists of a pair of single-row angular contact ball bearings
mounted back-to-back (standard)
• Shouldered and locked to the shaft
• Retained in the bearing frame to enable the bearing to carry both
radial and thrust loads
• Optional hydrodynamic thrust bearing for use with sleeve type journal
bearings
The heavy duty shaft has these characteristics:
• Designed for cartridge mechanical seals
• Minimal shaft deflection at the seal faces (0.002 in. [0.051 mm]) when run in the worstcase condition (typically minimum flow)
• Critical speed at least 20% above design operating speed
Direction of rotation
The shaft rotates clockwise or counterclockwise when viewed from the power end.
Nameplate information
Important information for ordering
Every pump has a nameplate that provides information about the pump. The nameplate is
located on the pump casing.
When you order spare parts, identify this pump information:
• Model
• Size
• Serial number
• Item numbers of the required parts
Refer to the nameplate on the pump casing for most of the information. See Parts List for item
numbers.
Nameplate on the pump casing using English units
14Installation, Operation, and Maintenance Manual
Page 17
Product Description
Nameplate fieldExplanation
MODELPump model
SIZESize of the pump
FLOWRated pump flow, in gallons per minute
HEADRated pump head, in feet
RPMRated pump speed, in revolutions per minute
HYDRO PRESSHydrostatic pressure at 100°F, in pounds per square inch
MAX. DES. WORKINGMaximum working pressure at temperature °F, in pounds per square inch
PRESS
S/NSerial number of the pump
CONT./ITEM NO.Customer contract or item number
IMP. DIA.Rated impeller diameter
MAX. DIA.Maximum impeller diameter
STD. DIM.Standard ANSI dimensional code
MAT'LMaterial of construction
Nameplate on the pump casing using metric units
Nameplate fieldExplanation
MODELPump model
SIZESize of the pump
FLOWRated pump flow, in gallons per minute
HEADRated pump head, in feet
RPMRated pump speed, in revolutions per minute
HYDRO PRESSHydrostatic pressure at 38°C, in pounds per square inch
MAX. DES. WORKINGMaximum working pressure at temperature °C, in pounds per square inch
PRESS
S/NSerial number of the pump
CONT./ITEM NO.Customer contract or item number
IMP. DIA.Rated impeller diameter
MAX. DIA.Maximum impeller diameter
STD. DIM.Standard ANSI dimensional code
MAT'LMaterial of construction
Installation, Operation, and Maintenance Manual15
Page 18
Product Description
ATEX nameplate
Nameplate fieldExplanation
IIGroup 2
2Category 2
G/DPump can be used when gas and dust are present
T4Temperature class
NOTICE:
Make sure that the code classifications on the pump are compatible with the specific
environment in which you plan to install the equipment. If they are not compatible, do not
operate the equipment and contact your ITT representative before you proceed.
16Installation, Operation, and Maintenance Manual
Page 19
Installation
Preinstallation
Precautions
WARNING:
• When installing in a potentially explosive environment, make sure that the motor is properly certified.
• You must earth (ground) all electrical equipment. This applies to the pump equipment, the driver, and
any monitoring equipment. Test the earth (ground) lead to verify that it is connected correctly.
• Electrical Connections must be made by certified electricians in compliance with all international,
national, state, and local rules.
NOTICE:
Supervision by an authorized ITT representative is recommended to ensure proper installation.
Failure to do so may result in equipment damage or decreased performance.
Pump location guidelines
WARNING:
Assembled units and their components are heavy. Failure to properly lift and support this equipment can
result in serious physical injury and/or equipment damage. Lift equipment only at the specifically identified
lifting points. Lifting devices such as eyebolts, slings, and spreaders must be rated, selected, and used for
the entire load being lifted.
Installation
GuidelineExplanation/comment
Make sure that the space around the pump isThis facilitates ventilation, inspection, maintenance,
sufficient.and service.
If you require lifting equipment such as a hoist orThis makes it easier to properly use the lifting
tackle, make sure that there is enough space above equipment and safely remove and relocate the
the pump.components to a safe location.
Protect the unit from weather and water damageThis is applicable if nothing else is specified.
due to rain, flooding, and freezing temperatures.
Do not install and operate the equipment in closedAcceptable devices:
systems unless the system is constructed with
properly-sized safety devices and control devices.
Take into consideration the occurrence of unwanted The best pump location for noise and vibration
noise and vibration.absorption is on a concrete floor with subsoil
Foundation requirements
Requirements
• The foundation must be able to absorb any type of vibration and form a permanent, rigid
support for the unit.
• The location and size of the foundation bolt holes must match those shown on the
assembly drawing provided with the pump data package.
• The foundation must weigh between two and three times the weight of the pump.
• Provide a flat, substantial concrete foundation in order to prevent strain and distortion
when you tighten the foundation bolts.
• Pressure relief valves
• Compression tanks
• Pressure controls
• Temperature controls
• Flow controls
If the system does not include these devices,
consult the engineer or architect in charge before
you operate the pump.
underneath.
Installation, Operation, and Maintenance Manual17
Page 20
Installation
Sleeve-type bolts
J-type bolts
• Sleeve-type and J-type foundation bolts are most commonly used. Both designs allow
movement for the final bolt adjustment.
1. Baseplate
2. Shims or wedges
3. Foundation
4. Sleeve
5. Dam
6. Bolt
1. Baseplate
2. Shims or wedges
3. Foundation
4. Dam
5. Bolt
Baseplate-mounting procedures
Prepare the baseplate for mounting
This procedure assumes you have a basic knowledge of baseplate and foundation design and
installation methods. Follow industry-standard procedures, such as API RP 686/ PIP REIE 686,
or this procedure before you grout the baseplate.
1. Make sure that all baseplate surfaces that will contact grout are free from contamination
such as rust, oil, and grime.
2. Thoroughly clean all baseplate surfaces that will come in contact with grout.
Make sure to use a cleaner that will not leave residue.
NOTICE:
You may need to sandblast the surfaces of a baseplate that come in contact with grout, and
then coat those surfaces with a primer that is grout-compatible. Make sure to remove all
equipment before sandblasting.
18Installation, Operation, and Maintenance Manual
Page 21
3. Make sure that all machined surfaces are free from burrs, rust, paint, or any other type of
contamination.
If necessary, use a honing stone to remove burrs.
Prepare the foundation for mounting
1. Chip the top of the foundation to a minimum of 1.0 in. (25.0 mm) in order to remove porous
or low-strength concrete.
If you use a pneumatic hammer, make sure that it does not contaminate the surface with oil
or other moisture.
NOTICE:
Do not chip the foundation using heavy tools such as jackhammers. This can damage the
structural integrity of the foundation.
2. Remove water or debris from the foundation bolt holes or sleeves.
3. If the baseplate uses sleeve-type bolts, then fill the sleeves with a non-binding, moldable
material. Seal the sleeves in order to prevent the grout from entering.
4. Coat the exposed portion of the anchor bolts with a non-bonding compound such as paste
wax in order to prevent the grout from adhering to the anchor bolts.
Do not use oils or liquid wax.
5. If recommended by the grout manufacturer, coat the foundation surface with a compatible
primer.
Installation
Install and level the baseplate
NOTICE:Illustrations are for reference only and may not depict the particular pump model.
Figure 5: Jackscrew locations, side view
Figure 6: Jackscrew locations, top view
1. Lower the baseplate carefully onto the foundation bolts.
The baseplate will rest on top of the foundation on the jackscrews provided on the
baseplate.
Installation, Operation, and Maintenance Manual19
Page 22
Installation
2. Adjust the leveling jackscrews, located adjacent to the foundation bolt holes, until the
baseplate rests 1 to 2 in. (25 to 50 mm) above the foundation in order to allow for adequate
grouting.
This provides even support for the baseplate after grouting.
3. Level the baseplate to within 0.002 in./ft. (0.167 mm/m) of the length or width of the
baseplate by adjusting the jackscrews.
• The maximum total variation from one end or side of the baseplate to the other is
0.015 in. (0.38 mm).
• Use the equipment mounting surfaces in order to establish the level.
4. Use a non-bonding (anti-seize) compound such as paste wax to coat the portions of the
jackscrews that will contact the grout.
This facilitates removal of the screws after grouting.
NOTICE:
Do not use oils or liquid wax.
5. Thread the nuts onto the foundation bolts and hand-tighten.
Install the pump, driver, and coupling
1. Mount and fasten the pump on the baseplate. Use applicable bolts.
2. Mount the driver on the baseplate. Use applicable bolts and hand tighten.
3. Install the coupling.
See the installation instructions from the coupling manufacturer.
Pump-to-driver alignment
Precautions
WARNING:
• Follow shaft alignment procedures in order to prevent catastrophic failure of drive components or
unintended contact of rotating parts. Follow the coupling installation and operation procedures from
the coupling manufacturer.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
NOTICE:
Proper alignment is the responsibility of the installer and the user of the unit. Check the
alignment of frame-mounted units before you operate the unit. Failure to do so can result in
equipment damage or decreased performance.
Alignment methods
Three common alignment methods are used:
• Dial indicator
• Reverse dial indicator
• Laser
Follow the instructions from the equipment manufacturer when you use the reverse dial
indicator or laser methods. Detailed instructions for using the dial indicator method are
contained in this chapter.
20Installation, Operation, and Maintenance Manual
Page 23
Alignment checks
When to perform alignment checks
You must perform alignment checks under these circumstances:
• The process temperature changes.
• The piping changes.
• The pump has been serviced.
Types of alignment checks
Type of checkWhen it is used
Initial alignment (cold alignment) Prior to operation when the pump and the driver are at ambient
checktemperature.
Final alignment (hot alignment)After operation when the pump and the driver are at operating
checktemperature.
Initial alignment (cold alignment) checks
WhenWhy
Before you grout the baseplateThis ensures that alignment can be accomplished.
After you grout the baseplateThis ensures that no changes have occurred during the grouting
After you connect the pipingThis ensures that pipe strains have not altered the alignment.
Installation
process.
Final alignment (hot alignment) checks
WhenWhy
After the first runThis ensures correct alignment when both the pump and the driver
PeriodicallyThis follows the plant operating procedures.
are at operating temperature.
Permitted indicator values for alignment checks
NOTICE:
The specified permitted reading values are valid only at operating temperature. For cold
settings, other values are permitted. You must use the correct tolerances. Failure to do so can
result in misalignment and reduced pump reliability.
IMPORTANT
• For electric motors, the motor shaft initial (cold) parallel vertical alignment setting should
be 0.002 to 0.004 in. (0.05 to 0.10 mm) lower than the pump shaft.
• For other drivers such as turbines and engines, follow the driver manufacturer's
recommendations.
When dial indicators are used to check the final alignment, the pump and drive unit are
correctly aligned when these conditions are true:
• The total indicator runout is a maximum of 0.002 in. (0.05 mm) at operating temperature.
• The tolerance of the indicator is 0.0005 in./in. (0.0127 mm/mm) of indicator separation at
operating temperature.
Alignment measurement guidelines
GuidelineExplanation
Rotate the pump coupling half and the driverThis prevents incorrect measurement.
coupling half together so that the indicator rods
have contact with the same points on the driver
coupling half.
Move or shim only the driver in order to makeThis prevents strain on the piping installations.
adjustments.
Installation, Operation, and Maintenance Manual21
Page 24
Installation
GuidelineExplanation
Make sure that the hold-down bolts for the driverThis keeps the driver stationary since movement
feet are tight when you take indicator measure-causes incorrect measurement.
ments.
Make sure that the hold-down bolts for the driverThis makes it possible to move the driver when you
feet are loose before you make alignment correc-make alignment corrections.
tions.
Check the alignment again after any mechanicalThis corrects any misalignments that an adjustment
adjustments.may have caused.
Attach the dial indicators for alignment
You must have two dial indicators in order to complete this procedure.
1. Attach two dial indicators on the pump coupling half (X):
a) Attach one indicator (P) so that the indicator rod comes into contact with the perimeter
of the driver coupling half (Y).
This indicator is used to measure parallel misalignment.
b) Attach the other indicator (A) so that the indicator rod comes into contact with the inner
end of the driver coupling half.
This indicator is used to measure angular misalignment.
2. Rotate the pump coupling half (X) in order to check that the indicators are in contact with
the driver coupling half (Y) but do not bottom out.
3. Adjust the indicators if necessary.
Perform angular alignment for a vertical correction
1. Set the angular alignment indicator to zero at the top-center position (12 o’clock) of the
driver coupling half (Y).
2. Rotate the indicator to the bottom-center position (6 o’clock).
3. Record the indicator reading.
When the reading value is...Then...
NegativeThe coupling halves are farther apart at the
PositiveThe coupling halves are closer at the bottom than
bottom than at the top. Perform one of these
steps:
• Add shims in order to raise the feet of the
driver at the shaft end.
• Remove shims in order to lower the feet of the
driver at the other end.
at the top. Perform one of these steps:
• Remove shims in order to lower the feet of the
driver at the shaft end.
• Add shims in order to raise the feet of the
driver at the other end.
22Installation, Operation, and Maintenance Manual
Page 25
1. Shims
Figure 7: Example of incorrect vertical alignment (side view)
4. Repeat the previous steps until the permitted reading value is achieved.
Perform angular alignment for a horizontal correction
1. Set the angular alignment indicator (A) to zero on left side of the driver coupling half (Y),
90° from the top-center position (9 o’clock).
2. Rotate the indicator through the top-center position to the right side, 180° from the start
position (3 o’clock).
3. Record the indicator reading.
When the reading value is...Then...
NegativeThe coupling halves are farther apart on the right side than
the left. Perform one of these steps:
• Slide the shaft end of the driver to the left.
• Slide the opposite end to the right.
PositiveThe coupling halves are closer together on the right side
than the left. Perform one of these steps:
• Slide the shaft end of the driver to the right.
• Slide the opposite end to the left.
Installation
Figure 8: Example of incorrect horizontal alignment (top view)
4. Repeat the previous steps until the permitted reading value is achieved.
Perform parallel alignment for a vertical correction
Refer to the alignment table in "Permitted indicator values for alignment checks" (see Table of
Contents for location of table) for the proper cold alignment value based on the motor
temperature rise and the pump operating temperature.
Before you start this procedure, make sure that the dial indicators are correctly set up.
A unit is in parallel alignment when the parallel indicator (P) does not vary by more than
0.002 in. (0.05 mm) as measured at four points 90° apart at the operating temperature.
1. Set the parallel alignment indicator (P) to zero at the top-center position (12 o’clock) of the
driver coupling half (Y).
2. Rotate the indicator to the bottom-center position (6 o’clock).
3. Record the indicator reading.
Installation, Operation, and Maintenance Manual23
Page 26
Installation
When the reading value is...Then...
NegativeThe pump coupling half (X) is lower than the
driver coupling half (Y). Remove shims of a
thickness equal to half of the indicator reading
value under each driver foot.
PositiveThe pump coupling half (X) is higher than the
driver coupling half (Y). Add shims of a thickness
equal to half of the indicator reading value to each
driver foot.
NOTICE:
1. Shims
Figure 9: Example of incorrect vertical alignment (side view)
4. Repeat the previous steps until the permitted reading value is achieved.
Perform parallel alignment for a horizontal correction
A unit is in parallel alignment when the parallel indicator (P) does not vary by more than
0.002 in. (0.05 mm) as measured at four points 90° apart at the operating temperature.
1. Set the parallel alignment indicator (P) to zero on the left side of the driver coupling half (Y),
90° from the top-center position (9 o’clock).
2. Rotate the indicator through the top-center position to the right side, 180° from the start
position (3 o’clock).
3. Record the indicator reading.
When the reading value is...Then...
NegativeThe driver coupling half (Y) is to the left of the
PositiveThe driver coupling half (Y) is to the right of the
4. Slide the driver carefully in the appropriate direction.
NOTICE:Make sure to slide the driver evenly. Failure to do so can negatively affect
horizontal angular correction.
pump coupling half (X).
pump coupling half (X).
Figure 10: Example of incorrect horizontal alignment (top view)
24Installation, Operation, and Maintenance Manual
Page 27
5. Repeat the previous steps until the permitted reading value is achieved.
Perform complete alignment for a vertical correction
A unit is in complete alignment when both the angular indicator (A) and the parallel indicator (P)
do not vary by more than 0.002 in. (0.05 mm) as measured at four points 90° apart.
1. Set the angular and parallel dial indicators to zero at the top-center position (12 o’clock) of
the driver coupling half (Y).
2. Rotate the indicators to the bottom-center position (6 o’clock).
3. Record the indicator readings.
4. Make corrections according to the separate instructions for angular and parallel alignment
until you obtain the permitted reading values.
Perform complete alignment for a horizontal correction
A unit is in complete alignment when both the angular indicator (A) and the parallel indicator (P)
do not vary by more than 0.002 in. (0.05 mm) as measured at four points 90° apart.
1. Set the angular and parallel dial indicators to zero at the left side of the driver coupling half
(Y), 90° from the top-center position (9 o’clock).
2. Rotate the indicators through the top-center position to the right side, 180° from the start
position (3 o’clock).
3. Record the indicator readings.
4. Make corrections according to the separate instructions for angular and parallel alignment
until you obtain the permitted reading values.
Installation
Grout the baseplate
Required equipment:
• Cleaners: Do not use an oil-based cleaner because the grout will not bond to it. See the
instructions provided by the grout manufacturer.
• Grout: Non-shrink grout is recommended.
NOTICE:
It is assumed that the installer who grouts the baseplate has knowledge of acceptable
methods. More detailed procedures are described in various publications, including API
Standard 610, latest edition, Appendix L; API RP 686, Chapter 5; and other industry standards.
1. Clean all the areas of the baseplate that will come into contact with the grout.
2. Build a dam around the foundation.
3. Thoroughly wet the foundation that will come into contact with the grout.
4. Pour grout through the grout hole into the baseplate up to the level of the dam.
When you pour the grout, remove air bubbles from it by using one of these methods:
• Puddle with a vibrator.
• Pump the grout into place.
Installation, Operation, and Maintenance Manual25
Page 28
Installation
5. Allow the grout to set.
1. Baseplate
2. Shims or wedges
3. Grout
4. Foundation
5. Sleeve
6. Dam
7. Bolt
6. Fill the remainder of the baseplate with grout, and allow the grout to set for at least 48
hours.
1. Baseplate
2. Grout
3. Foundation
4. Dam
5. Bolt
7. Remove the leveling jackscrews after the grout hardens in order to remove any stress
points.
8. Tighten the foundation bolts.
9. Recheck the alignment.
Piping checklists
General piping checklist
Precautions
CAUTION:
• Never draw piping into place by using force at the flanged connections of the pump. This can
impose dangerous strains on the unit and cause misalignment between the pump and driver. Pipe
strain adversely affects the operation of the pump, which results in physical injury and damage to
the equipment.
• Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the
suction side. This action can result in decreased performance, unexpected heat generation, and
equipment damage.
26Installation, Operation, and Maintenance Manual
Page 29
Piping guidelines
Checklist
Installation
CAUTION:
Flange loads from the piping system, including those from the thermal expansion of the piping, must not
exceed the limits of the pump. Casing deformation can result in contact with rotating parts, which can
result in excess heat generation, sparks, and premature failure.
Guidelines for piping are given in the Hydraulic Institute Standards available from the Hydraulic
Institute at 9 Sylvan Way, Parsippany, NJ 07054-3802. You must review this document before
you install the pump.
CheckExplanation/commentChecked
Check that all piping is supported This helps to prevent:
independently of, and lined up
naturally with, the pump flange.
See Alignment criteria for pump• Wear on the pump bearings, seal, and shafting
flanges.
Check that only necessary fittings This helps to minimize friction losses.
are used.
Do not connect the piping to the—
pump until:
• The grout for the baseplate or
sub-base becomes hard.
• The hold-down bolts for the
pump are tightened.
Make sure that all the piping joints This prevents air from entering the piping system or
and fittings are airtight.leaks that occur during operation.
If the pump handles corrosive
fluids, make sure that the piping
allows you to flush out the liquid
before you remove the pump.
If the pump handles liquids at
elevated temperatures, make
sure that the expansion loops and
joints are properly installed.
• Strain on the pump
• Misalignment between the pump and the drive unit
Alignment criteria for pump flanges
TypeCriteria
AxialThe flange gasket thickness is ±0.03 in. (0.8 mm).
ParallelAlign the flange to be within 0.001 in./in. to 0.03 in./
ConcentricYou can easily install the flange bolts by hand.
Fastening
WARNING:
• Only use fasteners of the proper size and material.
• Replace all corroded fasteners.
• Make sure that all fasteners are properly tightened and that there are no missing fasteners.
Suction-piping checklist
Performance curve reference
CAUTION:
Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the suction
side. This action can result in decreased performance, unexpected heat generation, and equipment
damage.
in. (0.025 mm/mm to 0.8 mm/mm) of the flange
diameter.
Installation, Operation, and Maintenance Manual27
Page 30
Installation
Net positive suction head available (NPSHA) must always exceed NPSH required (NPSHR) as
shown on the published performance curve of the pump.
Suction-piping checks
CheckExplanation/commentChecked
Check that elbows in general do
not have sharp bends.
Check that the suction piping isThe suction piping must never
one or two sizes larger than thehave a smaller diameter than the
suction inlet of the pump.suction inlet of the pump.
Install an eccentric reducer between the pump inlet and the
suction piping.
Check that the eccentric reducer
at the suction flange of the pump
has the following properties:
• Sloping side down
• Horizontal side at the top
When suction strainers or suction Suction strainers help to prevent
bells are used, check that they are clogging.
at least three times the area of the
suction piping.
If more than one pump operatesThis recommendation helps you to
from the same liquid source,achieve a higher pump perforcheck that separate suction-piping mance.
lines are used for each pump.
If necessary, make sure that the—
suction piping includes a drain
valve and that it is correctly installed.
Liquid source below the pump
CheckExplanation/commentChecked
Make sure that the suction piping This helps to prevent the occuris free from air pockets.rence of air and cavitation in the
Check that the suction piping—
slopes upwards from the liquid
source to the pump inlet.
If the pump is not self-priming,Use a foot valve with a diameter
check that a device for priming the that is at least equivalent to the
pump is installed.diameter of the suction piping.
Liquid source above the pump
CheckExplanation/commentChecked
Check that an isolation valve isThis permits you to close the line
installed in the suction piping at a during pump inspection and maindistance of at least two times thetenance.
pipe diameter from the suction
inlet.
Make sure that the suction piping This helps to prevent the occuris free from air pockets.rence of air and cavitation in the
Check that the piping is level or—
slopes downward from the liquid
source.
Make sure that no part of the—
suction piping extends below the
suction flange of the pump.
pump inlet.
Do not use the isolation valve to
throttle the pump. Throttling can
cause these problems:
• Loss of priming
• Excessive temperatures
• Damage to the pump
• Voiding the warranty
pump inlet.
28Installation, Operation, and Maintenance Manual
Page 31
CheckExplanation/commentChecked
Make sure that the suction piping This prevents air from entering the
is adequately submerged belowpump through a suction vortex.
the surface of the liquid source.
Discharge piping checklist
Checklist
CheckExplanation/commentChecked
Check that an isolation valve is in-The isolation valve is required for:
stalled in the discharge line.
Check that a check valve is installed in The location between the isolation valve and the
the discharge line, between the isola- pump allows inspection of the check valve.
tion valve and the pump discharge
outlet.
If increasers are used, check that they
are installed between the pump and
the check valve.
If quick-closing valves are installed in This protects the pump from surges and water
the system, check that cushioning de- hammer.
vices are used.
Installation
• Priming
• Regulation of flow
• Inspection and maintenance of the pump
The check valve prevents damage to the pump and
seal due to the back flow through the pump, when
the drive unit is shut off. It is also used to restrain
the liquid flow.
Bypass-piping considerations
When to use a bypass line
Provide a bypass line for systems that require operation at reduced flows for prolonged
periods. Connect a bypass line from the discharge side (before any valves) to the source of
suction.
When to install a minimum-flow orifice
You can size and install a minimum-flow orifice in a bypass line in order to prevent bypassing
excessive flows. Consult your ITT representative for assistance in sizing a minimum-flow
orifice.
When a minimum-flow orifice is unavailable
Consider an automatic recirculation control valve or solenoid-operated valve if a constant
bypass (minimum-flow orifice) is not possible.
Auxiliary-piping checklist
Precautions
WARNING:
• Cooling systems such as those for bearing lubrication and mechanical-seal systems must be
operating properly to prevent excess heat generation, sparks, and premature failure.
• Sealing systems that are not self-purging or self-venting, such as plan 23, require manual venting
prior to operation. Failure to do so will result in excess heat generation and seal failure.
NOTICE:
The mechanical seal must have an appropriate seal-flush system. Otherwise, excess heat
generation and seal failure can occur.
Installation, Operation, and Maintenance Manual29
Page 32
Installation
When to install
You may need to install auxiliary piping for bearing cooling, seal-chamber cover cooling,
mechanical seal flush, or other special features supplied with the pump. Consult the pump data
sheet for specific auxiliary piping recommendations.
Checklist
CheckExplanation/commentChecked
Check that the minimum flow for
each component is 1 gpm (4 lpm).
If the bearing and seal chamber
cover cooling are provided, then
the auxiliary piping must flow at 2
gpm (8 lpm).
Check that the cooling water pressure does not exceed 100 psig
(7.0 kg/cm2).
Final piping checklist
CheckExplanation/commentChecked
Check that the shaft rotatesRotate the shaft by hand. Make
smoothly.sure there is no rubbing that can
Re-check the alignment to makeIf pipe strain exists, then correct
sure that pipe strain has notthe piping.
caused any misalignment.
lead to excess heat generation or
sparks.
30Installation, Operation, and Maintenance Manual
Page 33
Commissioning, Startup, Operation, and Shutdown
Commissioning, Startup, Operation, and
Shutdown
Preparation for startup
DANGER:
Avoid death or serious injury. Explosion and/or seizure of pump can cause fire and/or burns. Never
operate pump past the pressure and temperature limits shown on the nameplate on the pump.
WARNING:
• Failure to follow these precautions before you start the unit will lead to serious personal injury and
equipment failure.
•
• Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Operating the pump above
maximum rated flow shown on the pump curve leading to an increase in horsepower and vibration
along with an increase in NPSHr resulting in mechanical seal and/or shaft failure and/or loss of
prime.
• Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Speed of pump must reach
2000 rpm for 2 pole motors and 1000 rpm for 4 pole motors within 10 seconds or an increase in
vibration and rotor deflection and decrease in rotor stability leading to mechanical seal and/or shaft
failure and/or pump seizure can occur.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• Avoid death or serious injury. Explosion and/or seizure of pump can cause fire and/or burns. Assure
balance line is installed and either piped to the pump suction or back to the suction vessel to avoid
vaporization of pumped fluid.
Precautions
DANGER:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Assure all openings are sealed
off prior to filling pump.
NOTICE:
• Verify the driver settings before you start any pump.
• Make sure that the temperature change does not exceed 35°F (19°C) per minute.
• The maximum allowable temperature change for an abnormal transient event such as
thermal shock is 400°F (205°C).
You must follow these precautions before you start the pump:
• Flush and clean the system thoroughly to remove dirt or debris in the pipe system in order
to prevent premature failure at initial startup.
• Bring variable-speed drivers to the rated speed as quickly as possible.
At initial startup, do not adjust the variable-speed drivers or check for speed governor or overspeed trip settings while the variable-speed driver is coupled to the pump. If the settings have
not been verified, then uncouple the unit and refer to instructions supplied by the driver
manufacturer.
Installation, Operation, and Maintenance Manual31
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Commissioning, Startup, Operation, and Shutdown
Remove the coupling guard
1. Remove the nut, bolt, and washers from the slotted hole in the center of the coupling guard.
2. Slide the driver half of the coupling guard toward the pump.
3. Remove the nut, bolt, and washers from the driver half of the coupling guard.
4. Remove the driver-side end plate.
5. Remove the driver half of the coupling guard:
a) Slightly spread the bottom apart.
b) Lift upwards.
6. Remove the remaining nut, bolt, and washers from the pump half of the coupling guard.
It is not necessary to remove the end plate from the pump side of the bearing housing. You
can access the bearing-housing tap bolts without removing this end plate if maintenance of
internal pump parts is necessary.
7. Remove the pump half of the coupling guard:
a) Slightly spread the bottom apart.
b) Lift upwards.
Check the rotation
WARNING:
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
1. Lock out power to the driver.
2. Make sure that the coupling hubs are fastened securely to the shafts.
3. Make sure that the coupling spacer is removed.
The pump ships with the coupling spacer removed.
4. Unlock power to the driver.
5. Make sure that everyone is clear, and then jog the driver long enough to determine that the
direction of rotation corresponds to the arrow on the bearing housing or .
6. Lock out power to the driver.
Couple the pump and driver
WARNING:
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
•
1. Check the gap between the coupling hubs against the dimensions shown on the elevation
drawing or as stamped on the coupling hub. For any necessary adjustment, move the
driver not the pump.
Motors with sleeve bearings may be manufactured with 1/4 or 1/2 in. (6.35 or 12.7 mm) end
movement (float) in the motor rotor. For limited end-float arrangement, the gap between the
coupling halves must be set in a different manner. If specific directions are not indicated in
the motor instructions, then follow this procedure:
NOTICE:
If the driver was mounted at the factory, the setting for the coupling is already determined.
32Installation, Operation, and Maintenance Manual
Page 35
Commissioning, Startup, Operation, and Shutdown
a) Slide the rotor towards the outboard end of the motor as far as it will go and mark the
shaft at the motor frame.
b) Slide the rotor towards the inboard end of the motor as far as it will go and mark the
shaft again.
The distance between the marks should be either 1/2 or 1/4 in. (6.35 or 12.7 mm) if the
motor is arranged for limited end-float travel.
c) Scribe a third mark on the shaft halfway between the scribe marks made in the previous
steps.
d) Clamp the rotor in place.
1. Sleeve bearing
2. Thrust collar
3. Coupling
2. Use the instructions from the coupling manufacturer to lubricate and install the coupling.
3. Check the angular and parallel alignment of the coupling halves. See Pump-to-driver
alignment in the Installation chapter.
Coupling guard assembly
Precautions
WARNING:
• Never operate the pump without the coupling guard correctly installed.
• Avoid death or serious injury. Assure mechanical seal guard is properly installed using supplied
fastening hardware.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
•
Required parts
These parts are required:
Installation, Operation, and Maintenance Manual33
Page 36
Commissioning, Startup, Operation, and Shutdown
1. End plate, drive end
2. End plate, pump end
3. Guard half, 2 required
4. 3/8-16 no-slip clip-on nut, 3 required
5. 3/8-16 push nut, 3 required
6. 3/8 in. washer
7. 3/8-16 x 2 in. hex head bolt, 3 required
Install the coupling guard
1. Is the end plate (pump end) already installed?
• If yes: Make any necessary coupling adjustments and then proceed to step 2.
• If no: Complete these steps:
a) Remove the spacer portion of the coupling.
Refer to the instructions from the coupling manufacturer for assistance.
b) If the coupling hub diameter is larger than the diameter of the opening in the end plate,
then remove the coupling hub.
c) Remove the thrust bearing end-cover screws.
d) Align the end plate to the thrust bearing end cover so that the holes in the end plate
align with the holes in the end cover.
e) Replace the three thrust bearing end cover screws and torque to the values shown in
the Maximum torque values for fasteners table.
34Installation, Operation, and Maintenance Manual
Page 37
Commissioning, Startup, Operation, and Shutdown
f)Replace the coupling hub (if removed) and the spacer portion of the coupling.
Refer to the instructions from the coupling manufacturer for assistance.
Complete any coupling adjustments before you proceed with the coupling guard assembly.
2. Slightly spread the opening of the coupling guard half and place it over the pump end plate.
1. Pump half of the coupling guard
2. Annular groove
3. Deflector fan guard
4. Driver
The annular groove in the guard is located around the end plate.
Position the opening (flange) so that it does not interfere with the piping but still allows for
access when you install the bolts.
1. Annular groove
2. Deflector fan guard
3. Coupling guard half
Installation, Operation, and Maintenance Manual35
Page 38
Commissioning, Startup, Operation, and Shutdown
3. Install clip-on nut to on one of the flat tabs on the bottom part of the coupling guard. Make
sure to align the nut with the round hole at the front end of the guard half with nut on the
outside.
4. Insert a push nut between the other flat tab and the clip-on nut.
5. Place one washer over the bolt and insert the bolt through the round hole where the push
nut and clip-on nut are located. Be sure to tighten the bolt firmly.
6. Slightly spread the opening of the remaining coupling guard half and place it over the
installed coupling guard half so that the annular groove in the remaining coupling guard half
faces the driver.
1. Annular groove
2. Coupling guard half
3. Driver
36Installation, Operation, and Maintenance Manual
Page 39
Commissioning, Startup, Operation, and Shutdown
7. Place the end plate over the driver shaft and locate the end plate in the annular groove at
the rear of the coupling guard half.
1. Annular groove
2. End plate
8. Repeat steps 3 through 5 for the rear end of the coupling guard half, except that you hand
tighten the bolt.
9. Slide the rear coupling guard half towards the motor so that it completely covers the shafts
and coupling.
1. Driver
2. Slide to fit
10. Install clip-on nut on the center slot of the flat tabs on the bottom part of the coupling
guard. Keep the nut on the outside
11. Insert a a plain washer and a push nut between the other flat tab and the clip-on nut. Be
certain that the push nut is nearest the clip-on nut.
Installation, Operation, and Maintenance Manual37
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Commissioning, Startup, Operation, and Shutdown
12. Place one washer over the bolt and insert the bolt through the round hole where the push
nut and clip-on nut are located. Be sure to tighten the bolt firmly.
Bearing lubrication
Precautions
WARNING:
Make sure to properly lubricate the bearings. Failure to do so can result in excess heat generation,
sparks, and premature failure.
NOTICE:
Avoid equipment damage. Refer to driver/coupling/gear manufactures IOM for instructions and
recommendations for lubrication.
Pumps are shipped without oil
You must lubricate oil-lubricated bearings at the job site.
Ring oil lubrication
Ring oil-lubricated bearings are standard. Bearing housings are supplied with constant-level
oilers and sight glasses. Make sure that oil rings are properly seated in the grooves in the shaft.
Pure or purge oil-mist lubrication
Pure or purge oil mist are optional features. Follow the oil-mist generator manufacturer's
instructions. The inlet and outlet connections are located on the top and bottom of the bearing
housing, respectively.
Oil volumes
Oil volume requirements for ball/ball and sleeve/ball bearings
This table shows the required amount of oil for oil-lubricated bearings.
All frames in this table use a Watchdog Oiler, which has a capacity of 4 oz. (118 ml).
Oil volume requirements for sleeve/Kingsbury type bearings
The sleeve/Kingsbury type bearing is a pressurized lubrication system where oil is flowed into
the bearing. This system does not have an oil sump. The system requires a flow rate of 0.5
gpm (0.12 m3/hr) for the sleeve bearing and 1.0 gpm (0.23 m3/hr) for the Kingsbury bearing at
15 psi (100 kPA).
Lubricating-oil requirements
Oil quality requirements
Use a high-quality turbine oil with rust and oxidation inhibitors with rated viscosity shown below
at 100°F (38°C).
Oil requirements based on temperature
For the majority of operating conditions, bearing temperatures run between 120°F (49°C) and 180°F
(82°C), and you can use an oil of ISO viscosity grade 68 at 100°F (38°C). If temperatures exceed 180°F
(82°C), refer to the table for temperature requirements.
TemperatureOil requirement
Acceptable oil for lubricating bearings
Acceptable lubricants
BrandLubricant type
Ball/ballSleeve/ballSleeve/Kingsbury
ExxonTeresstic EP 68Teresstic EP 46Teresstic EP 32
MobilDTE Heavy MediumDTE 746DTE 732
SunocoSunvis 968Sunvis 946Sunvis 932
Royal PurpleSYNFILM ISO VG 68SYNFILM ISO VG 46SYNFILM ISO VG 32
Commissioning, Startup, Operation, and Shutdown
Lubricate the bearings with oil
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump and
the cooling coils. Failure to do so can cause liquid to freeze and damage the pump.
Ring oil-lubricated pumps are supplied with an oiler that maintains a constant oil level in the
bearing housing.
1. Fill the oil reservoir in the bearing frame:
a) Fill the bearing chamber through the main body of the Watchdog until it reaches the
optimum fluid level visible in the bullseye sight.
b) Fill the watchdog reservoir using a funnel.
c) Verify o-ring is on the Watchdog oiler spout.
d) Place your thumb over the reservoir spout. Invert and insert the spout into the internal
threaded boss on the main body.
e) Tighten reservoir. Do not over-tighten.
f)Verify that proper oil level is maintained per the following diagram.
NOTICE:
Do not fill the oil reservoir of the bearing frame through the plug at the top.
Installation, Operation, and Maintenance Manual39
Page 42
Commissioning, Startup, Operation, and Shutdown
2. Check that the oil level is correct. The correct oil level is centered in the bullseye sight
glass, when the pump is not in operation. During operation, bullseye sight gives a false oil
level reading. Shown is general schematic. Oil level is below outer race of bearing.
1. Plug
2. Reservoir
3. Main body
Lubricate the bearings with pure or purge-oil mist (optional)
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump and
the cooling coils. Failure to do so can cause liquid to freeze and damage the pump.
Before lubricating with purge-oil mist, make sure that the bearing frame is properly lubricated.
See Lubricate the bearings with oil.
The oil requirements for ring-oil-lubricated bearings also apply to oil-mist-lubricated bearings.
NOTICE:
Oil mist is recommended for use on ball bearing arrangements only. See Convert to oil-mist
lubrication.
1. Prepare the oil-mist generator according to the manufacturer's instructions.
2. Connect the oil-mist supply lines to the oil-ring inspection plug connections.
Note that only one of the two connection ports in the radial bearing housing (134) is used
(immediately above the single row radial bearing). You must connect to both connections
on the thrust bearing housing, because there are two rows of bearings.
Oil-mist connections
A.Radial and thrust
B.Thrust only
C.Radial and thrust drain
3. For pure-oil mist, connect the drain lines to the outlet connections.
This is not required for purge-oil mist.
Convert to oil-mist lubrication
NOTICE:
Make sure that pipe threads are clean and apply thread sealant to plugs and fittings.
You can convert from ring-oil lubrication to oil-mist lubrication in pumps with ball bearing
construction. The radial and thrust end bearing housings (134) have pre-drilled connections for
oil misting:
• 1/4 in. NPT connection on the inboard side of the housing
• 1/2 in. NPT connection on the outboard side
Purge-oil mist lubrication provides intermittent oil mist in the bearing housing. This system uses
the oil sump in the housing, and requires the oil ring and the constant-level oiler.
40Installation, Operation, and Maintenance Manual
Page 43
Pure-oil mist lubrication provides constant oil mist in the bearing housing. This system does not
use the oil sump, oil ring, or constant-level oiler. The drain connections in the bearing housing
are used as part of the oil recirculation system.
1. On the radial housing, replace the 1/4 in. NPT plug with an oil-mist fitting provided by the
oil-mist system manufacturer.
The 1/2 in. NPT connections remains plugged because it is not required in the oil-mist
system.
2. On the thrust housing, replace the 1/4 in. NPT plug with an oil-mist fitting. Replace the 1/2
in. NPT plug with a 1/2 in. to 1/4 in. bushing and insert an oil-mist fitting provided by the oilmist system manufacturer.
Oil-mist connections
A.Radial and thrust (1/4 in.)
B.Thrust only (1/2 in.)
C.Radial and thrust drain
NOTICE:
In both housings, the inboard channel beneath the 1/4 in. NPT connection must be 1/4 in. plugepoxied to prevent rapid oil drainage. Drill a 1/8 in. hole for required but restricted drainage.
Lubricate the bearings after a shutdown period
1. Flush out the bearings and bearing frame with a light oil to remove contaminants.
During flushing, make sure to rotate the shaft slowly by hand.
2. Flush the bearing housing with the proper lubricating oil to ensure oil quality after cleaning.
3. Refer to "Reassembly" section for proper bearing greasing procedure.
Commissioning, Startup, Operation, and Shutdown
Shaft sealing with a mechanical seal
Precautions
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.
NOTICE:
• The mechanical seal must have an appropriate seal-flush system. Otherwise, excess heat
generation and seal failure can occur.
• Cooling systems such as those for bearing lubrication and mechanical-seal systems must
be operating properly to prevent excess heat generation, sparks, and premature failure.
• Sealing systems that are not self-purging or self-venting, such as plan 23, require manual
venting prior to operation. Failure to do so will result in excess heat generation and seal
failure.
Shipping
Pumps may be shipped with or without a mechanical seal installed.
Cartridge-type mechanical seals
Cartridge-type mechanical seals are commonly used. Cartridge seals are preset by the seal
manufacturer and require no field settings. Cartridge seals installed by the user require
disengagement of the holding clips prior to operation, allowing the seal to slide into place. If the
seal has been installed in the pump by ITT, these clips have already been disengaged.
Installation, Operation, and Maintenance Manual41
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Commissioning, Startup, Operation, and Shutdown
Other mechanical seal types
For other types of mechanical seals, refer to the instructions provided by the seal manufacturer
for installation and setting.
Connection of sealing liquid for mechanical seals
Seal lubrication is required
Seal faces must have liquid film between them for proper lubrication. Locate the taps using the
illustrations shipped with the seal.
Seal flushing methods
You can use these methods in order to flush or cool the seal:
MethodDescription
Product flushRun the piping so that the pump pushes the pumped fluid from the casing and
External flushRun the piping so that the pump injects a clean, cool, compatible liquid directly into
OtherYou can use other methods that employ multiple gland or seal chamber
injects it into the seal gland. If necessary, an external heat exchanger cools the
pumped fluid before it enters the seal gland.
the seal gland. The pressure of the flushing liquid must be 5 to 15 psi (0.35 to 1.01
kg/cm2) greater than the seal chamber pressure. The injection rate must be 0.5 to
2 gpm (2 to 8 lpm).
connections. Refer to the mechanical seal reference drawing and piping diagrams.
Pump priming
WARNING:
These pumps are not self priming and must be fully primed at all times during operation. Loss of prime
can lead to excessive heat and severe damage to the pump and seal.
WARNING:
A build-up of gases within the pump, sealing system, or process piping system may result in an explosive
environment. Make sure the process piping system, pump and sealing system are properly vented prior to
operation.
Before the pump is started, the pump must be fully primed and the suction pipe must be full of
liquid. If pump is run dry, then rotating parts within the pump can seize to stationary parts
because they depend upon the pumped liquid for lubrication. Several methods of priming can
be used depending upon the type of installation and service involved.
Prime the pump with the suction supply above the pump
This method of priming the pump is simplest and safest. A float switch in the suction reservoir
can be arranged to stop the pump if there is a failure of liquid supply.
1. Open the suction gate valve and close the discharge gate valve.
2. Remove the vent plug until all air is expelled and water flows through openings.
3. Close the air vent valves, start the pump, and open the discharge gate valve.
The pump will continue to be primed for any future starting.
42Installation, Operation, and Maintenance Manual
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1. Float switch
2. Suction gate valve
3. Vent plug
4. Discharge gate valve
Figure 11: Suction supply above the pump
Prime the pump with an outside supply
This method ensures that the pump will remain primed if the foot valve is tight. If the foot valve
fails when the pump is standing idle, then the pump will lose its prime. During long idle periods,
the pump can also lose its prime through leakage from the stuffing boxes.
1. Close the discharge gate valve, remove the vent plug, and open the valve in the priming
supply line until all air is expelled and water comes out of the vent openings.
2. Close the air vents, close the valve in the priming supply line, and start pump.
3. Open the discharge gate valve.
Commissioning, Startup, Operation, and Shutdown
1. From outside supply
2. Shutoff valve
3. Vent plug
4. Discharge gate valve
5. Foot valve
Figure 12: Prime with an outside supply
Installation, Operation, and Maintenance Manual43
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Commissioning, Startup, Operation, and Shutdown
Prime the pump with a separate hand or manually controlled
priming pump
This method ensures that the pump will remain primed if the foot valve is tight. If the foot valve
fails when the pump is standing idle, then the pump will lose its prime. During long idle periods,
the pump can also lose its prime through leakage from the stuffing boxes.
1. Close the discharge gate valve and open the valve in the line to the priming pump.
Do not remove the vent plug.
2. Release air from the pump and suction piping until water flows from the priming pump.
3. With priming pump running, close the valve in the priming line, start the pump, and open
the discharge gate valve.
An alternate method is to reverse the connections on the priming pump and extend the
priming pump suction to the source of the liquid supply. The pump can be primed by
pumping liquid into the casing until liquid comes out of the open air vent with the plug
removed.
1. Priming pump
2. Shutoff valve
3. Vent plug
4. Discharge gate valve
5. Foot valve
Figure 13: Separate hand, or manually controlled, priming pump
Prime the pump by bypassing the discharge check valve
This method can be used only when there is liquid under some pressure in the discharge line.
The original prime must be induced from an outside source. This system is used for automatic
operation where idle periods are short and there is no danger of exhausting all liquid from the
discharge line due to a leaky foot valve. The foot valve must be capable of withstanding the
static head pressure of the system.
1. After subsequent idle periods, open the air vents and open the valve in the bypass line
around the discharge check and gate valves until liquid flows through the air vent openings.
2. Close the air vents and the bypass shutoff valve.
3. Start the pump and open the discharge gate valve.
The valve in the bypass line can be left open so that loss through the foot valve is
constantly replenished from the discharge line left open during idle periods.
44Installation, Operation, and Maintenance Manual
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1. Vent plug
2. Discharge gate valve
3. Shutoff valve
4. Discharge check valve
5. Bypass line
6. Foot valve
Figure 14: Bypassing the discharge check valve
Commissioning, Startup, Operation, and Shutdown
Prime the pump with an ejector
On suction lift installations, you can prime the pump using an ejector to remove air from the
casing and suction line. The ejector can be operated by steam, compressed air, or water under
pressure.
1. Connect the ejector to the tapped opening in the top of the pump casing.
2. Close the discharge gate valve and open valve E in the steam, air, or water pressure
supply line.
3. Open valve S in the suction pipe of the ejector connected to the pump casing.
Air will be evacuated and liquid will be drawn up into the suction pipe and pump casing.
4. When all air is evacuated, do the following:
a) Start the pump.
b) Close valve S and valve E.
c) Open the discharge gate valve.
Installation, Operation, and Maintenance Manual45
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Commissioning, Startup, Operation, and Shutdown
1. Valve S
2. Ejector
3. Valve E
4. Steam, compressed air, or water under pressure
5. Discharge gate valve
Figure 15: Priming the pump with an ejector
Prime with an automatic primer pump
This system works well in situations where there is a fluctuating suction lift that occasionally
drops below the normal limits of the pump. The system also works well where there is any
quantity of air entrained in the pumped fluid.
1. Install a vacuum tank with a vacuum gauge near the primer pump.
2. Set the vacuum switch to automatically start or stop the primer pump according to the
vacuum required to keep the system primed.
1. To primer pump
2. Priming valve
3. These lines must slope upward from the pump in order to eliminate air pockets.
4. Discharge gate valve
5. Suction pipe
Figure 16: Automatic primer pump
46Installation, Operation, and Maintenance Manual
Page 49
Start the pump
WARNING:Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop
the driver immediately, reprime, and attempt to restart the pump.
CAUTION:
• Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop the
• Observe the pump for vibration levels, bearing temperature, and excessive noise. If normal levels
• On pure or purge-oil mist-lubricated units, remove the viewing port plugs to verify that oil mist
• On frame mounted units, ensure that the oil level is correct prior to starting pump. Close coupled
• Ensure all flush and cooling systems are operating correctly prior to starting pump.
Before you start the pump, you must perform these tasks:
• Open the suction valve.
• Open any recirculation or cooling lines.
1. Fully close or partially open the discharge valve, depending on system conditions.
2. Start the driver.
3. Slowly open the discharge valve until the pump reaches the desired flow.
4. Immediately check the pressure gauge to ensure that the pump quickly reaches the correct
5. If the pump fails to reach the correct pressure, perform these steps:
6. Monitor the pump while it is operating:
7. Repeat steps 5 and 6 until the pump runs properly.
Commissioning, Startup, Operation, and Shutdown
driver, reprime, and attempt to restart the pump.
are exceeded, shut down the pump and resolve the issue.
flowing properly. Replace the plugs.
pumps do not have oil lubricated bearings.
discharge pressure.
a) Stop the driver.
b) Prime the pump again.
c) Restart the driver.
a) Check the pump for bearing temperature, excessive vibration, and noise.
b) If the pump exceeds normal levels, then shut down the pump immediately and correct
the problem.
A pump can exceed normal levels for several reasons. See Troubleshooting for
information about possible solutions to this problem.
Installation, Operation, and Maintenance Manual47
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Commissioning, Startup, Operation, and Shutdown
Pump operation precautions
General considerations
CAUTION:
• Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the
suction side since this can result in decreased performance, unexpected heat generation, and
equipment damage.
• Do not operate pump past the maximum flow. For maximum flow refer to the pump performance
curve.
• Do not overload the driver. Driver overload can result in unexpected heat generation and equipment
damage. The driver can overload in these circumstances:
• The specific gravity of the pumped fluid is greater than expected.
• The pumped fluid exceeds the rated flow rate.
• Do not operate pump below hydraulic or thermal minimum flow. For hydraulic minimum flows refer
to technical manual and pump performance curve. To calculate thermal minimum flow, refer to HI
Centrifugal Pumps for Design and Application ANSI/HI 1.3-2000.
• Make sure to operate the pump at or near the rated conditions. Failure to do so can result in pump
damage from cavitation or recirculation.
NOTICE:
On ring oil-lubricated pumps, remove oil ring viewing port plugs to verify the following:
• The oil rings are properly positioned in the grooves on the shaft.
• The oil rings are turning.
• The oil rings are throwing oil.
Replace the plugs.
NOTICE:
• Check the bearing temperatures using a pyrometer or other temperature-measuring
device. Monitor the bearing temperature frequently during initial operation in order to
determine if a bearing problem exists, as well as to establish normal bearing operating
temperature.
• The maximum allowable temperature change for an abnormal transient event such as
thermal shock is 150°F (65°C).
• For pumps with auxiliary piping, make sure that proper flows have been established and
that the equipment is operating properly.
• Establish baseline vibration readings in order to determine normal running conditions. If
the unit is running roughly, then consult the factory.
• Monitor all gauges to ensure that the pump is running at or near rating and that the suction
screen (when used) is not clogged.
Operation at reduced capacity
WARNING:
Never operate any pumping system with a blocked suction and discharge. Operation, even for a brief
period under these conditions, can cause confined pumped fluid to overheat, which results in a violent
explosion. You must take all necessary measures to avoid this condition. If pump becomes plugged shut
down and unplug prior to restarting pump.
48Installation, Operation, and Maintenance Manual
Page 51
CAUTION:
• Avoid excessive vibration levels. Excessive vibration levels can damage the bearings, stuffing box
or seal chamber, and the mechanical seal, which can result in decreased performance.
• Avoid increased radial load. Failure to do so can cause stress on the shaft and bearings.
• Avoid heat build-up. Failure to do so can cause rotating parts to score or seize.
• Avoid cavitation. Failure to do so can cause damage to the internal surfaces of the pump.
Operation under freezing conditions
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that is inside the pump and
the cooling coils. Failure to do so can cause liquid to freeze and damage the pump.
Shut down the pump
WARNING:
The pump can handle hazardous and toxic fluids. Identify the contents of the pump and observe proper
decontamination procedures in order to eliminate the possible exposure to any hazardous or toxic fluids.
Wear the proper personal protective equipment. Potential hazards include, but are not limited to, high
temperature, flammable, acidic, caustic, explosive, and other risks. You must handle and dispose of
pumped fluid in compliance with the applicable environmental regulations.
Commissioning, Startup, Operation, and Shutdown
1. Slowly close the discharge valve.
2. Shut down and lock the driver to prevent accidental rotation.
Make the final alignment of the pump and driver
WARNING:
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• Follow shaft alignment procedures in order to prevent catastrophic failure of drive components or
unintended contact of rotating parts. Follow the coupling installation and operation procedures from
the coupling manufacturer.
You must check the final alignment after the pump and driver are at operating temperature. For
initial alignment instructions, see the Installation chapter.
1. Run the unit under actual operating conditions for enough time to bring the pump, driver,
and associated system to operating temperature.
2. Shut down the pump and the driver.
3. Remove the coupling guard.
See Remove the coupling guard in the Maintenance chapter.
4. Check the alignment while the unit is still hot.
See Pump-to-driver alignment in the Installation chapter.
5. Reinstall the coupling guard.
6. Restart the pump and driver.
Doweling the pump casing
You must dowel the pump casing to the baseplate pedestals in order to maintain the proper
pump position. There are two methods for doweling the pump casing.
When the driver is mounted at the factory, the pump is doweled; the driver is not doweled in
order to allow for final field alignment. When the driver is mounted in the field, the pump is not
Installation, Operation, and Maintenance Manual49
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Commissioning, Startup, Operation, and Shutdown
doweled. Therefore, these doweling procedures, typically done at the factory, must be done in
the field.
NOTICE:
You should dowel only after completing the final alignment.
Dowel for motor installation
1. Center the pump on its pedestal so that the hold-down bolts are centered in the tapped
holes of the pump pedestal.
2. Place the motor on the baseplate with the proper shaft separation (DBSE = distance
between shaft ends).
3. Tighten the pump hold-down bolts.
4. After you have determined the correct motor location on the motor pedestals, mark the
location of the motor on the pedestals with a hole punch through the hold-down bolt holes
in the motor feet.
5. Remove the motor, then drill and tap the punched holes on the motor pedestal.
NOTICE:
Scribe the motor shims in order to return them to the correct location on the motor pedestal.
6. Set the motor back onto the baseplate with the shims in the correct location. Tighten the
hold-down bolts.
7. Loosen the pump and motor hold-down bolts. Confirm that the pump and motor are not
bolt-bound in order to make sure that the final drilled holes will be correctly located.
NOTICE:
Do not dowel the pump prior to this procedure because you will not be able to move the
pump on its pedestals.
Dowel for cold service
Required tools:
• Two number 7 taper pins
• One number 7 taper pin reamer
• 21/64 in. or "Q" size drill
• Hardwood block or soft-faced hammer
NOTICE:
• This procedure must be done only after the pump is properly aligned with the driver on the
baseplate.
• If water-cooled pedestals have been provided, then do not drill through the baseplate
pedestal. Doing so can result in leakage of cooling water.
1. Drill two holes through the pump foot and pump pedestal. Position each hole between the
hold-down bolt and the end of the pump foot at the coupling end on both sides.
2. Ream the holes with a number 7 taper pin reamer to the proper fit with the taper dowel pins.
Insert the pins deep enough so that only the threaded portions are exposed when the pins
are fully seated.
3. Seat the taper pins firmly in the holes with a hardwood block or soft-faced hammer.
If you should ever need to remove the dowel pins, tighten the hex nuts provided on the pins. If
the pins are not seated deeply enough, put a spacer under the hex nuts in order to lift the pins
free when the hex nuts are tightened.
50Installation, Operation, and Maintenance Manual
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Commissioning, Startup, Operation, and Shutdown
NOTICE:
Always remove the dowel pins before removing the casing. Failure to do so can result in casing
damage.
Installation, Operation, and Maintenance Manual51
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Maintenance
Maintenance
Maintenance schedule
Maintenance inspections
A maintenance schedule includes these types of inspections:
• Routine maintenance
• Routine inspections
• Three-month inspections
• Annual inspections
Shorten the inspection intervals appropriately if the pumped fluid is abrasive or corrosive or if
the environment is classified as potentially explosive.
Routine maintenance
Perform these tasks whenever you perform routine maintenance:
• Lubricate the bearings.
• Inspect the seal.
Routine inspections
Perform these tasks whenever you check the pump during routine inspections:
• Check the level and condition of the oil through the sight glass on the bearing frame.
• Check for unusual noise, vibration, and bearing temperatures.
• Check the pump and piping for leaks.
• Analyze the vibration.
• Inspect the discharge pressure.
• Inspect the temperature.
• Check that there is no leakage from the mechanical seal.
Three-month inspections
Perform these tasks every three months:
• Check that the foundation and the hold-down bolts are tight.
• Check the mechanical seal if the pump has been left idle, and replace as required.
• Change the oil every three months (2000 operating hours) at minimum.
• Change the oil more often if there are adverse atmospheric or other conditions that
• Check the shaft alignment, and realign as required.
Annual inspections
Perform these inspections one time each year:
• Check the pump capacity.
• Check the pump pressure.
• Check the pump power.
If the pump performance does not satisfy your process requirements, and the process
requirements have not changed, then perform these steps:
1. Disassemble the pump.
2. Inspect it.
3. Replace worn parts.
might contaminate or break down the oil.
52Installation, Operation, and Maintenance Manual
Page 55
Bearing maintenance
Bearing lubrication schedule
Type of lubricationFirst lubricationLubrication intervals
Ring oilAdd oil before you install and start After the first 200 hours, change
Purge oil
Pure oilFollow the recommendations from Follow the recommendations from
Forced oil
Mechanical-seal maintenance
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.
CAUTION:
Never operate the pump without liquid supplied to mechanical seal. If you run a mechanical seal dry,
even for a few seconds, this can cause seal damage. Physical injury can occur if a mechanical seal fails.
Maintenance
the pump. Change the oil afterthe oil every 2000 operating hours
200 hours for new bearings.or every three months.
the manufacturer.the manufacturer.
NOTICE:
• Sealing systems that are not self-purging or self-venting, such as plan 23, require manual
venting prior to operation. Failure to do so will result in excess heat generation and seal
failure.
• Cooling systems, such as those for bearing lubrication and mechanical-seal systems, must
be operating properly to prevent excess heat generation, sparks, and premature failure.
• The mechanical seal must have an appropriate seal flush system or excess heat
generation and seal failure can occur.
Cartridge-type mechanical seals
Cartridge-type mechanical seals are commonly used. Cartridge seals are preset by the seal
manufacturer and require no field settings. Cartridge seals installed by the user require
disengagement of the holding clips prior to operation, allowing the seal to slide into place. If the
seal has been installed in the pump by ITT, these clips have already been disengaged.
Other mechanical seal types
For other types of mechanical seals, refer to the instructions provided by the seal manufacturer
for installation and setting.
Reference drawing
The manufacturer supplies a reference drawing with the data package. Keep this drawing for
future use when you perform maintenance and seal adjustments. The seal drawing specifies
the required flush fluid and attachment points.
Before you start the pump
Check the seal and all flush piping.
Mechanical seal life
The life of a mechanical seal depends on the cleanliness of the pumped fluid. Due to the
diversity of operating conditions, it is not possible to give definite indications as to the life of a
mechanical seal.
Installation, Operation, and Maintenance Manual53
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Maintenance
Disassembly
Disassembly precautions
WARNING:
• This manual clearly identifies accepted methods for disassembling units. These methods must be
adhered to. Trapped liquid can rapidly expand and result in a violent explosion and injury. Never
apply heat to impellers, propellers, or their retaining devices to aid in their removal unless explicitly
stated in this manual.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear
steel-toed shoes at all times.
• The pump can handle hazardous and toxic fluids. Identify the contents of the pump and observe
proper decontamination procedures in order to eliminate the possible exposure to any hazardous or
toxic fluids. Wear the proper personal protective equipment. Potential hazards include, but are not
limited to, high temperature, flammable, acidic, caustic, explosive, and other risks. You must handle
and dispose of pumped fluid in compliance with the applicable environmental regulations.
• A small amount of liquid will be present in certain areas like the seal chamber.
NOTICE:
• Avoid injury. Worn pump components can have sharp edges. Wear appropriate gloves
while handling these parts.
• Make sure that all replacement parts are available before you disassemble the pump for
overhaul.
Tools required
In order to disassemble the pump, you need these tools:
• Brass drift punch
• Cleaning agents and solvents
• Dial indicators
• Drill
• Feeler gauges
• Hex wrenches
• Induction heater
• Lifting sling
• Micrometers (inside and outside)
• Open end wrenches
• Press
• Soft face hammer
• Spanner wrench
• Spanning type puller
• Tap
• Torque wrench with sockets
Prepare for disassembly
CAUTION:
Allow all system and pump components to cool before you handle them to prevent physical injury.
1. Close the isolation valves on the suction and discharge sides of the pump.
54Installation, Operation, and Maintenance Manual
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Maintenance
2. Drain the liquid from the piping; flush the pump if necessary.
3. Disconnect all auxiliary piping, tubing, and equipment that will interfere with the removal of
the head and the rotor.
4. Remove the oil drain plugs (408A) from the bottom of the bearing housings (134) and drain
the oil.
Dispose of the oil in accordance with applicable regulations.
5. Remove the oiler bottle (251) and store it in a safe place.
6. Remove the coupling guard (501B).
Refer to Remove the coupling guard in the Commissioning, Startup, Operation, and
Shutdown chapter.
7. Unbolt and remove the coupling spacer (235B).
Follow the instructions provided by the coupling manufacturer for assistance.
8. Remove the coupling guard pump endplate (234A).
9. Remove the coupling nut (520) from the tapered shaft end on the pump.
10. Remove the coupling hub (233) from the pump.
• Scribe the shaft (122) for relocating the coupling hub during reassembly.
• Use a spanner type puller or puller holes provided in the hub. Refer to the instructions
provided by the coupling manufacturer for further assistance.
• At this point, you can remove the pump from the baseplate.
11. Reposition the setting tabs in order to maintain the position of the mechanical seal.
Refer to the seal installation drawing provided by the manufacturer.
Position both seals at this time.
Installation, Operation, and Maintenance Manual55
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Maintenance
Disassemble the radial end (ball bearing pumps)
1. Unbolt and remove the cover bolts (371C) and the outboard end cover (160). Loosen the
inboard end cover (160) and cover bolts (371C).
The outboard labyrinth seal (332A) and the bearing housing gasket (360A) will come off
with the outboard cover (160).
2. Remove the dowel pins (469J) between the bearing housing flange and the casing flange.
The connection point of the housing to the casing is referred to as the saddle.
3. Unbolt the bearing housing from the saddle by removing the four nuts (427J).
4. Remove the studs (371T). Rotate the bearing housing in order to remove the inboard end
cover bolts (371C).
5. Remove the oil ring (114).
6. Pull the bearing housing (134) off the shaft.
The gasket (360A) remains on the bearing housing.
7. Loosen the setscrew (388L) on the oil ring sleeve (324) and remove the sleeve.
56Installation, Operation, and Maintenance Manual
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8. Use a bearing puller in order to remove the radial bearing (168) from the shaft.
Maintenance
9. Remove the inboard bearing cover (160), the inboard labyrinth seal (333A), and the inner
bearing cover bolts (371C).
10. Remove the seal plate nuts (355) and the mechanical seal (250).
Refer to the instructions provided by the mechanical seal manufacturer.
Installation, Operation, and Maintenance Manual57
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Maintenance
Disassemble the thrust end (ball bearing pumps)
1. Unbolt the cover bolts (371C) and remove the outboard thrust bearing end cover (109A).
Loosen the inboard end cover (160) and cover bolts (371C).
The bearing housing gaskets (360A) will remain on the end covers (109A or 160).
2. Remove the dowel pins (469J) between the bearing housing flange and the head flange.
The connection point of the housing to the casing is referred to as the saddle.
3. Unbolt the bearing housing from the saddle by removing the four nuts (427J).
4. Remove the studs (371T). Rotate the bearing housing in order to remove the inboard end
cover bolts (371C).
5. Remove the oil ring (114).
6. Pull the bearing housing (134) off the shaft.
7. Remove the locknut (136) and the lockwasher (382).
8. Remove the oil ring sleeve (443B), which is held in place by the thrust locknut (136).
9. Use a bearing puller in order to remove the thrust bearing (112A) from the shaft (122).
The inner race on this inner duplex bearing remains on the shaft when the bearing is pulled.
Remove this inner race by applying heat. Do this away from the pump site.
WARNING:
The pump may handle hazardous and/or toxic liquids. Trapped or undrained liquid can cause explosions
when heat is applied. Never apply heat at the pump site for this reason. Heat can also distort machined
surfaces.
58Installation, Operation, and Maintenance Manual
Page 61
S group pumps have a bearing spacer (217).
10. Remove the inboard bearing cover (160), the inboard labyrinth seal (333A), and the inner
bearing cover bolts (371C).
11. Remove the seal plate nuts (355) and the mechanical seal (250).
Refer to the instructions provided by the mechanical seal manufacturer.
Disassemble the radial end (sleeve/ball bearing pumps)
Maintenance
1. Remove the two dowel pins between the upper and lower halves of the bearing housing
(134).
2. Remove the hex screws that connect the upper and lower halves of the bearing housing.
3. Tighten the two jackscrews on the horizontal parting flanges of the bearing housing in order
to separate the two halves.
4. Remove the top half of the bearing housing with the upper half of the sleeve bearing (117).
Installation, Operation, and Maintenance Manual59
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Maintenance
Notice that the bearing is pinned to the bearing housing.
5. Remove the dowel pins (469J) that hold the lower half of the bearing housing to the casing
flange.
6. Loosen and remove the nuts (427J) that hold the bearing housing in place.
7. Rotate the lower half of the sleeve bearing (117) around the shaft (122) in order to remove
the bearing from the lower housing.
8. Remove the lower half of the bearing housing.
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Maintenance
9. Remove the outboard labyrinth seal (332A), the two oil rings (323), and the inboard
labyrinth seal (333A).
Installation, Operation, and Maintenance Manual61
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Maintenance
Disassemble the thrust end (sleeve/ball bearing pumps)
1. Remove the outboard end cover (109A) by removing the end cover bolts (371C).
2. Remove the upper half of the bearing housing (134A) from the lower half:
a) Remove the dowel pins between the upper and lower halves of the bearing housing
(134A).
b) Remove the hex head screws that connect the upper and lower halves of the bearing
housing (134A).
c) Tighten the jackscrews in order to separate the housing halves.
62Installation, Operation, and Maintenance Manual
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Maintenance
d) Remove the top half of the thrust bearing (134A) housing with the upper half of the
sleeve bearing (117). Notice that the bearing is pinned to the housing.
3. Remove the outboard oil ring (114).
Installation, Operation, and Maintenance Manual63
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Maintenance
4. Remove the dowel pins (469J) that hold the lower half of the bearing housing to the casing
flange.
5. Loosen the nuts (427J) that hold the bearing housing in place.
The bearing housing will rest on the studs.
6. Rotate the lower half of the sleeve bearing (117) around the shaft (122) in order to remove
it from the lower bearing housing.
7. Remove the nuts (427J).
8. Remove the lower half of the bearing housing (134A) using a crane. Remove the studs
(371T).
9. Remove the thrust locknut (136) and the lockwasher (382) from the shaft.
10. Remove the oil ring sleeve (443B).
11. Use a bearing puller tool in order to remove the thrust bearing (112A) from the shaft.
The inner race on this inner duplex bearing will likely remain on the shaft when the bearing
is pulled. Remove this inner race by applying heat. Do this away from the pump site.
WARNING:
The pump may handle hazardous and/or toxic liquids. Trapped or undrained liquid can cause explosions
when heat is applied. Never apply heat at the pump site for this reason. Heat can also distort machined
surfaces.
S group pumps have a bearing spacer (217).
12. Remove the two oil rings (323) located at the sleeve bearing.
13. Remove the labyrinth seals (333A).
Disassembly of the sleeve/Kingsbury bearing arrangement
If your pump is equipped with the rarely-supplied sleeve/Kingsbury bearing arrangement, refer
to the topics Disassemble the radial end (sleeve/ball bearing pumps) and Disassemble the
thrust end (sleeve/ball bearing pumps) for sleeve bearing disassembly.
Also see the instructions provided by Kingsbury for specific information regarding this tiltingpad hydrodynamic bearing.
64Installation, Operation, and Maintenance Manual
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Disassemble the rotating assembly
Maintenance
1. Remove dowel pins (469G).
2. Loosen and remove the case parting nuts (425).
3. Use the jackscrews provided with the pump to loosen the upper half of the casing (100).
4. Use a sling in order to lift the upper half from the casing.
Installation, Operation, and Maintenance Manual65
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Maintenance
CAUTION:
Cast lifting lugs in upper half are intended for upper half removal from the pump. They are not intended to
be used to lift the entire pump.
5. Position the slings around the impeller (101) on the locknuts (124 and 130).
6. Lift the rotor out of the pump.
7. Remove the throat bushing (125) and case wear ring (164) from each side of the impeller.
8. Remove the radial end impeller locknut (124).
You do not need to remove the thrust locknut (130) from the shaft unless you plan to
replace either the thrust locknut or the shaft.
Preassembly inspections
Replacement guidelines
Casing check and replacement
WARNING:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Inspect and assure gasket sealing
surfaces are not damaged and repair or replace as necessary.
Inspect the casing and head for cracks and excessive wear or pitting. Thoroughly clean gasket
surfaces and alignment fits to remove rust and debris.
Repair or replace these parts if you notice any of these conditions:
• Localized wear or grooving that is greater than 1/8 in. (3.2 mm) deep
• Pitting that is greater than 1/8 in. (3.2 mm) deep
• Irregularities in the casing-gasket seat surface
• Wear ring clearances that exceed the values in the Minimum running clearances table
NOTICE:
When clearances between the rings become excessive (increase by 50%), hydraulic
performance decreases substantially.
66Installation, Operation, and Maintenance Manual
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Casing areas to inspect
The arrows point to the areas to inspect for wear on the casing:
Impeller replacement
This table shows the criteria for replacing the impeller:
Impeller partsWhen to replace
Vane edgesWhen you see cracks, pitting, or corrosion damage
Maintenance
Impeller checks
• Check and clean the impeller bore diameter.
Impeller areas to inspect
A. Shroud
B. Wear ring
C. Vane
Installation, Operation, and Maintenance Manual67
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Maintenance
Oil ring replacement
Oil rings must be as round as possible in order to function properly. Replace oil rings if they are
worn, distorted, or damaged beyond reasonable repair.
Impeller locknut areas to inspect
Locknut surfaces must be smooth and free of grooves and scratches, especially in the areas
indicated by arrows in the figure. Also check the outside diameter of the locknuts.
Cartridge mechanical seal replacement
Cartridge-type mechanical seals should be serviced by the seal manufacturer. Refer to the
instructions from the mechanical seal manufacturer for assistance.
Coupling guard replacement
Repair or replace the coupling guard if you notice corrosion or other defects.
Gaskets, O-rings, and seats replacement
WARNING:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Replace any damaged or worn
gaskets/o-rings.
• Replace all gaskets and O-rings at each overhaul and disassembly.
• Inspect the seats. They must be smooth and free of physical defects.
In order to repair worn seats, skin cut them in a lathe while you maintain dimensional
relationships with other surfaces.
• Replace parts if the seats are defective.
Additional parts
Inspect and either repair or replace all other parts, if inspection indicates continued use would
be harmful to satisfactory and safe pump operation.
Inspection must include these items:
• Bearing end covers (109A and 360A)
• Labyrinth seals (332A and 333A)
• Bearing locknut (136)
• Impeller key (178) and coupling key (400)
• Bearing lockwasher (382)
• All nuts, bolts, and screws
Shaft replacement guidelines
Shaft measurement check
Check the bearing fits of the shaft. If any are outside the tolerances shown in the Bearing fits
and tolerances table, then replace the shaft.
68Installation, Operation, and Maintenance Manual
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Shaft straightness check
NOTICE:Do not use shaft centers for the runout check as they may have been damaged during
the removal of the bearings or impeller.
Shaft surface check
Check the shaft surface for damage. Replace the shaft if it is damaged beyond reasonable
repair.
Maintenance
Rotor
Allowable runouts of the fully assembled rotor are listed in the Shaft and rotor runout
requirements table.
Table 1: Shaft and rotor runout requirements
CharacteristicRequirement
Flexibility factor, L4/D
Allowable shaft runout, TIR25 µm
Component fit to shaftClearance
Allowable rotor radial runout, TIR*75 μm
*Total indicated runout of impeller hubs and sleeves
2
>1.9x109mm
(3.0x106in.)
(0.0010 in.)
(0.0030 in.)
Figure 17: Fully assembled rotor
Bearings inspection
Condition of bearings
Do not reuse bearings. The condition of the bearings provides useful information on operating
conditions in the bearing frame.
Installation, Operation, and Maintenance Manual69
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Maintenance
Checklist
Perform these checks when you inspect the bearings:
Replacement bearings
Replacement bearings must be the same as, or equivalent to, those listed in this table.
NOTICE:
Thrust bearings must have machined bronze cages (retainers).
Table 2: Model 3610 ball bearing fits
Bearing numbers are based on SKF/MRC designations.
• Inspect the bearings for contamination and damage.
• Note any lubricant condition and residue.
• Inspect the ball bearings to see if they are loose, rough, or noisy when you rotate them.
• Investigate any bearing damage to determine the cause. If the cause is not normal wear,
correct the issue before you return the pump to service.
3.93791.7718
5.11912.3623
5.51282.5592
7.48203.5434
8.46633.9371
8.46633.93774.7255
3.93717.7249
Bearing housings
Perform these checks when you inspect the bearing housings:
• Check that the bearing housings are very clean, with no burrs.
• Remove all loose and foreign material.
• Check the bearing housing bores against the values in the Ball bearing fits table.
• Repair or replace housings as necessary.
Replace the wear parts
Replace the throat bushing
The throat bushing (125) is held in place by a press fit and tack welds.
1. Remove the bushing:
a) Grind out the tack weld.
b) Press the bushing into the seal chamber of the case (100) and head (184) bore.
2. Install the bushing:
a) Thoroughly clean the bushing fit in the seal chamber of the case (100) and head (184).
70Installation, Operation, and Maintenance Manual
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b) Chill the new bushing using dry ice or other suitable chilling substance, and install the
WARNING:
Dry ice and other chilling substances can cause physical injury. Contact the supplier for information and
advice for proper handling precautions and procedures.
c) Tack weld the bushing in place at three equidistant places.
Replace the wear rings
The casing wear rings (164) with a locational fit and anti-rotational pin (445A). Impeller wear
rings (142) are held in place by a press fit and three setscrews (320).
1. Remove the wear rings:
a) Remove the setscrews.
b) Remove the wear rings from the casing (100) and the impeller (101). Use suitable pry
CAUTION:
Excessive machining can damage ring fits and render parts unusable.
Maintenance
bushing into the fit of the case (100) and head (184).
Be prepared to tap the bushing in place with a hardwood block or soft-faced hammer.
or puller tools to force the rings from the fits.
You can also machine the rings for removal.
2. Install the wear rings:
a) Thoroughly clean the wear-ring seats, and make sure that they are smooth and free of
scratches.
b) Heat the new impeller wear rings to 180°F–200°F (132°C–143°C) using a uniform
method for heating, such as an oven, and place them on the impeller (101) wear-ring
seats.
WARNING:
Wear insulated gloves when you handle rings. Rings will be hot and can cause physical injury.
c) Locate, drill, and tap three new setscrew holes equally spaced between the original
holes in each new ring and ring seat area.
d) Install the setscrews (320) and upset threads.
3. Check the casing wear-ring (164) runout and distortion by measuring the bore at each
setscrew location with inside micrometers or vernier calipers.
Machine any distortion in excess of 0.003 in. (0.08 mm) before you trim the new impeller
wear rings (142).
4. Confirm with inside micrometers or vernier calipers the bore of the casing wear rings (164).
Installation, Operation, and Maintenance Manual71
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Maintenance
5. Turn the impeller wear ring to size after you mount it on the impeller .
NOTICE:
The impeller and wear-ring clearance setting procedures must be followed. Improperly
setting the clearance or not following any of the proper procedures can result in sparks,
unexpected heat generation, and equipment damage.
All replacement impeller wear rings, except those that are hard-faced, are supplied 0.020
in. to 0.030 in. (0.508 mm to 0.762 mm) oversize. See the table Minimum running
clearances for final running clearances. Machine the impeller rings accordingly.
Spare hard-faced impeller wear rings are not supplied oversize but are supplied to preestablished proper running clearances when both impeller and casing wear rings are
renewed.
When the impeller assembly is supplied as a spare part (impeller with wear rings), the wear
rings are machined to the required dimension.
Minimum running clearances
Impeller wear rings
Replace wear rings when the diametrical clearance exceeds the values shown in this table or when the
hydraulic performance has decreased to unacceptable levels:
Diameter of rotating member at clearanceMinimum diametrical clearance
in.mmin.mm
<2.000<50.000.0100.25
2.000 to 2.499950.00 to 64.990.0110.28
2.500 to 2.99965.00 to 79.990.0120.30
3.000 to 3.49980.00 to 89.990.0130.33
3.500 to 3.99990.00 to 99.990.0140.36
4.000 to 4.499100.00 to 114.990.0150.38
4.500 to 4.999115.00 to 124.990.0160.41
5.000 to 5.999125.00 to 149.990.0170.43
6.000 to 6.999150.00 to 174.990.0180.46
7.000 to 7.999175.00 to 199.990.0190.48
8.000 to 8.999200.00 to 224.990.0200.51
9.000 to 9.999225.00 to 249.990.0210.53
10.000 to 10.999250.00 to 274.990.0220.56
11.000 to 11.999275.00 to 299.990.0230.58
12.000 to 12.999300.00 to 324.990.0240.61
13.000 to 13.999325.00 to 349.990.0250.63
14.000 to 14.999350.00 to 374.990.0260.66
15.000 to 15.999375.00 to 399.990.0270.69
16.000 to 16.999400.00 to 424.990.0280.71
17.000 to 17.999425.00 to 449.990.0290.74
18.000 to 18.999450.00 to 474.990.0300.76
19.000 to 19.999475.00 to 499.990.0310.79
20.000 to 20.999500.00 to 524.990.0320.81
21.000 to 21.999525.00 to 549.990.0330.84
22.000 to 22.999550.00 to 574.990.0340.86
23.000 to 23.999575.00 to 599.990.0350.89
24.000 to 24.999600.00 to 624.990.0360.91
25.000 to 25.999625.00 to 649.990.0370.94
For diameters greater than 25.999 in. (649.99 mm), the minimum diametrical clearances shall
be 0.037 in. (0.94 mm) plus 0.001 inch for each additional inch of diameter or fraction thereof
(1 mm for each additional 1 mm).
72Installation, Operation, and Maintenance Manual
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Reassembly
Assemble the rotating element
WARNING:
Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear steeltoed shoes at all times.
NOTICE:
• Make sure that all parts and threads are clean and that you have followed all directions
under the Preassembly inspections section.
• Check for magnetism on the pump shaft and degauss the shaft if there is any detectable
magnetism. Magnetism attracts ferritic objects to the impeller, seal, and bearings which
can result in excessive heat generation, sparks, and premature failure.
1. Assemble the impeller onto the shaft. The impeller is a slip fit onto the shaft (H7/g6 ISO fit).
Center the impeller between the impeller locknut threads. Apply a liberal amount of an antiseize compound onto the shaft.
Maintenance
2. Assemble the impeller locknuts.
One locknut has a right-hand thread, the other one has a left-hand thread.
If this is a repair, it is likely that only one locknut was removed. Keep the second locknut on
the shaft in order to maintain the impeller centering. Use the previously recorded dimension
from the bearing shoulder to the face of the impeller hub, or refer to the Impeller setting
table in the Disassembly section.
NOTICE:
Make sure the threads are clean. Deburr if necessary. Apply an anti-seize compound to the
threads.
3. Install the impeller wear rings .
See Replace the wear rings in the Preassembly inspections section.
4. Measure the TIR on the impeller wear rings, impeller locknuts, and bearing fits.
The shaft is the datum point. Measure the runout of wear rings and impeller nuts to the
shaft with a dial indicator.
Installation, Operation, and Maintenance Manual73
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Maintenance
API limits are listed in the Shaft and rotor runout requirements table.
5. Install the casing wear rings (164) over each impeller ring (142).
Be certain the smaller outer diameter is nearest the impeller when installing.
6. Install the throat bushing (125) on each side of the impeller.
Be certain the smaller outer diameter is nearest the impeller when installing.
NOTICE:
The impeller and wear-ring clearance setting procedures must be followed. Improperly
setting the clearance or not following any of the proper procedures can result in sparks,
unexpected heat generation, and equipment damage.
Install the rotating element
1. Use straps and a crane to insert the rotating element into the casing lower half:
Take extra precaution not to scuff the impeller (101), impeller nuts (124 and 130), or throat
bushing surface.
2. Slowly lower the rotating element into the case lower half. Make sure to center the impeller
in the discharge volute. Move and position the throat bushing, along with the case wear ring
such that these components are located on the proper bores and that the anti-rotation pins
are fully seated in their respective slots.
3. Use straps and a crane assembly to assemble the upper half of the casing.
4. Torque the head bolts to the values found in the Maximum torque values for fasteners
table:
a) Apply an anti-seize compound to the bolts and to the face of the head where the nuts
make contact.
b) Install a nut on every other stud.
c) Tighten the nuts evenly to bring the two halves of the case together.
d) Mark each of these nuts as Group A.
e) Install the remaining half of the nuts (Group B).
f)Apply a torque of approximately 150 ft-lb (203 Nm) to the Group B nuts.
g) Match mark the Group B nuts to the head.
h) Further tighten the Group B nuts by turning each nut clockwise 17° to 19° past the mark
on the head.
i)Loosen the Group A nuts.
j)Repeat steps F through H for the Group A nuts.
74Installation, Operation, and Maintenance Manual
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Maintenance
5. Mount the cartridge mechanical seal (250) on the shaft. Do not tighten the gland nuts at this
time.
Figure 18: Mount the cartridge mechanical seal on the radial end
Figure 19: Mount the cartridge mechanical seal on the thrust end
Confirm the seal chamber runout
The bearing housings are doweled to the casing (100) during the original build. However, in
order to assure the correct running position of the shaft, use this procedure in order to confirm
the seal chamber runout before you install the cartridge mechanical seals:
1. Install the old bearings on the shaft and bolt the bearing housings to the casing and head.
2. Mount the dial indicator on the shaft (122). Rotate the shaft (122) so that the indicator rides
along the seal chamber bore for 360°.
3. If the total indicator reading exceeds 0.005 in. (0.127 mm), determine the cause and make
corrections.
It may be necessary to readjust the housing.
a) Remove the dowel pins and use the adjusting screws to bring the runout to within 0.002
in. (0.0508 mm).
b) Redowel the housings in a different location.
4. Check the seal-chamber face runout.
a) With a dial indicator mounted on the shaft, rotate the shaft so that the indicator rides
along the seal-chamber face for 360°.
b) If the total indicator reading exceeds the allowable runout as this table shows,
determine the cause and make corrections.
Frame groupNameplate radial Maximum allowable total indicator reading in inches
S63090.0020 (0.0508)
M / MX63120.0025 (0.0635)
L / LX63130.0030 (0.0762)
XL63180.0035 (0.0889)
bearing(millimeters)
Installation, Operation, and Maintenance Manual75
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Maintenance
Frame groupNameplate radial Maximum allowable total indicator reading in inches
X, XX, XXL, XLX63200.0035 (0.0889)
bearing(millimeters)
6224
5. Remove the dowel pins and unbolt the bearing housings. Discard the old bearings.
Assemble the thrust end (ball bearing pumps)
1. Assemble the inboard labyrinth seal (333A) into the inboard thrust end cover (160):
a) Clean the end cover with a solvent.
b) Fit the labyrinth seal (333A) into the bore of the cover (160).
c) Tap the seal in with a hammer.
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
2. Assemble the inboard end cover (160) and the inboard bearing end-cover gasket (360A)
onto the shaft.
3. Assemble the thrust bearings (112A) in a back-to-back arrangement onto the shaft (122):
The bearings are interference fit.
a) Preheat the bearings to 250°F (120°C) with an induction-type bearing heater.
Be sure to also demagnetize the bearings after heating.
CAUTION:
• Wear insulated gloves when you use a bearing heater. Bearings get hot and can cause physical
injury.
NOTICE:
Do not use a torch and do not force.
b) Install the bearings (112A), the oil ring sleeve (443B), and the bearing locknut (136)
onto the shaft.
76Installation, Operation, and Maintenance Manual
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Maintenance
c) While the bearings are hot, tighten the locknut by hand with a spanner wrench until the
bearing is snug against the shaft shoulder.
d) Allow the bearing assembly to cool slowly to room temperature.
Do not rapidly cool the bearings with compressed air or other means.
e) When the bearing assembly is fully cooled, remove the locknut, install the lockwasher
(382), and install the locknut.
f)Hand-tighten the locknut with a spanner wrench. Do not over-tighten the bearing. Tap
the end of the spanner wrench with light strikes from a dead blow hammer while you
note the location of the next available lockwasher tab that aligns with the slots in the
locknut.
The turning resistance of the nut increases as it tightens. Plan the alignment of the
lockwasher tab with the locknut fully tightened. If the locknut is still turning with light
strikes with the hammer, then continue to tighten the locknut until the next available tab
is aligned with a slot. Do not use heavy strikes with the hammer. If it is not possible to
reach the next tab, then loosen the locknut to align with the previous tab.
g) Check the condition of the outer races by rotating the bearings by hand in opposite
directions:
• The outer races generally cannot be counter-rotated by hand, but if they do move,
the resistance must be high.
• If the outer races are loose, the bearing is not properly seated and must be
retightened.
h) When you have achieved the proper bearing assembly, set the lockwasher tab in the
slot in the locknut.
4. Install the bearing housing (134) over the bearings. Finger-tighten the nuts (427J) on the
studs (371T). Insert the dowel pins (469J); then tighten the nuts (427J).
The bearing housing is doweled to the
bearing saddle flange of the
casing (100) during the original build to assure the correct running position of the shaft.
Installation, Operation, and Maintenance Manual77
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Maintenance
NOTICE:
The bearing housing flange must fit metal-to-metal (no gap) to the bearing saddle flange.
5. Install the bearing end cover (160) with the end-cover capscrews (371C).
6. Install the oil ring (114).
7. Install the bearing end cover (109A) and the bearing end-cover gasket (360A) with the
outboard end-cover capscrews (371C).
8. When new bearings are installed, you must measure the axial end play:
a) Bolt the end cover to the thrust housing.
b) Move the shaft axially from the coupling end.
c) Measure the shaft axial movement with a dial indicator mounted on the radial bearing
housing.
This table shows the clearance requirements between the thrust bearing end cover and the
bearing:
1. Assemble the inboard labyrinth seal (333A) into the inboard radial-end cover (160):
a) Clean the end cover with a solvent.
b) Fit the labyrinth seal (333A) into the bore of the cover (160).
c) Tap the seal in with a hammer.
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
2. Assemble the inboard end cover (160) and the inboard bearing end-cover gasket (360A)
onto the shaft.
3. Assemble the radial bearing (168) onto the shaft (122).
The bearings are interference fit.
78Installation, Operation, and Maintenance Manual
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Maintenance
a) Preheat the bearings with an electronic induction heater.
The induction heater also demagnetizes the bearings.
CAUTION:
Wear insulated gloves when you use a bearing heater. Bearings get hot and can cause physical injury.
NOTICE:
Do not use a torch and do not force.
b) Coat the internal surface of the bearings with the lubricant that is to be used in service.
c) Assemble the radial-end bearing (168) onto the shaft (122).
S-group pumps have a bearing spacer (217).
4. Install the oil-ring sleeve (324) and tighten the setscrew (388L).
5. Install the bearing housing (134).
The bearing housing is doweled to the casing (100) during the original build to assure the
correct running position of the shaft.
NOTICE:
The bearing housing flange must fit metal-to-metal (no gap) to the bearing saddle flange.
6. Install the oil ring (114).
7. Install the end-cover gasket on the outboard side (360A).
8. Assemble the outboard labyrinth seal (332A) into the outboard radial-end cover (160):
a) Clean the end cover with a solvent.
b) Fit the labyrinth seal (332A) into the bore of the cover (160).
c) Tap the seal in with a hammer.
Installation, Operation, and Maintenance Manual79
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Maintenance
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
9. Install the end cover (160). Tighten all end-cover capscrews (371C).
Assemble the thrust end (sleeve/ball bearing pumps)
80Installation, Operation, and Maintenance Manual
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Maintenance
1. Install the inboard labyrinth seal (333A).
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
2. Place the inboard oil rings (114) on the shaft.
3. Assemble the thrust bearings (112A) in a back-to-back arrangement onto the shaft (122):
The bearings are interference fit.
a) Preheat the bearings to 250°F (120°C) with an induction-type bearing heater.
Be sure to also demagnetize the bearings after heating.
CAUTION:
• Wear insulated gloves when you use a bearing heater. Bearings get hot and can cause physical
injury.
NOTICE:
Do not use a torch and do not force.
b) Install the bearings (112A), the oil ring sleeve (443B), and the bearing locknut (136)
onto the shaft.
c) While the bearings are hot, tighten the locknut by hand with a spanner wrench until the
bearing is snug against the shaft shoulder.
d) Allow the bearing assembly to cool slowly to room temperature.
Do not rapidly cool the bearings with compressed air or other means.
e) When the bearing assembly is fully cooled, remove the locknut, install the lockwasher
(382), and install the locknut.
f)Hand-tighten the locknut with a spanner wrench. Do not over-tighten the bearing. Tap
the end of the spanner wrench with light strikes from a dead blow hammer while you
note the location of the next available lockwasher tab that aligns with the slots in the
locknut.
The turning resistance of the nut increases as it tightens. Plan the alignment of the
lockwasher tab with the locknut fully tightened. If the locknut is still turning with light
strikes with the hammer, then continue to tighten the locknut until the next available tab
is aligned with a slot. Do not use heavy strikes with the hammer. If it is not possible to
reach the next tab, then loosen the locknut to align with the previous tab.
Installation, Operation, and Maintenance Manual81
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Maintenance
g) Check the condition of the outer races by rotating the bearings by hand in opposite
directions:
• The outer races generally cannot be counter-rotated by hand, but if they do move,
the resistance must be high.
• If the outer races are loose, the bearing is not properly seated and must be
retightened.
h) When you have achieved the proper bearing assembly, set the lockwasher tab in the
slot in the locknut.
4. Lift the lower half of the bearing housing (134A) into place, positioning the two inboard oil
rings (323) in the bearing housing grooves.
5. Place the installed inboard labyrinth seal (333A) in the lower housing.
6. Finger tighten the lower housing to the head-bearing flange with the head-to-bearing
housing studs (371T) and nuts (427J).
7. Install the sleeve bearing (117):
a) Place the lower half of the sleeve bearing (117) onto the shaft (122) and slide it around
the shaft into the lower bearing housing, moving the oil rings accordingly. Position the
inboard oil rings (323) in the grooves on the sleeve bearings.
b) Install the dowel pins in the pre-drilled dowel pin holes between the housing flange and
the head-bearing flange.
c) Tighten the nuts (427J) on the bearing housing to the head studs (371T).
d) Place the upper half of the sleeve bearing (117) on the shaft, moving the oil rings aside.
When the bearing top half is in place, move the oil rings back into the bearing housing
and sleeve grooves.
8. Install the upper half of the bearing housing (134A).
9. Place the outboard oil ring (114) on the oil-ring sleeve (443B).
10. Adjust the end play with the gasket (361A) and the thrust end cover (109A).
When new bearings are installed, you must measure the axial end play:
a) Bolt the end cover to the thrust housing.
b) Move the shaft axially from the coupling end.
c) Measure the shaft axial movement with a dial indicator mounted on the radial bearing
housing.
This table shows the clearance requirements between the thrust bearing end cover and the
bearing:
11. Install the thrust bearing outboard-end cover (109A), with the gasket (361A). Tighten the
end cover to the housing with the capscrews (371C).
82Installation, Operation, and Maintenance Manual
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Assemble the radial end (sleeve/ball bearing pumps)
1. Install the inboard labyrinth seal (333A).
2. Place the oil rings (323) on the shaft.
3. Place the outboard labyrinth seal (333A) in the lower half of the bearing housing (134),
which is not yet attached.
Maintenance
4. Lift the lower half of the housing into place, positioning the inner oil rings (323) in the
bearing housing grooves.
5. Place the installed inboard labyrinth seal (333A) in the lower housing.
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
6. Hand-tighten the lower housing to the case bearing flange with the case-to-bearing housing
studs (371T) and nuts (427J).
7. Install the sleeve bearing (117):
a) Place the lower half of the sleeve bearing (117) onto the shaft (122) and slide it around
the shaft into the lower bearing housing, moving the oil rings accordingly. Position the
inboard oil rings (323) in the grooves on the sleeve bearings.
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Maintenance
b) Install the dowel pins (469J) in the pre-drilled dowel pin holes between the housing
flange and the case bearing flange.
c) Tighten the nuts (427J) on the bearing housing to the case studs (371T).
d) Place the upper half of the sleeve bearing (117) on the shaft, moving the oil rings aside.
When the bearing top half is in place, move the oil rings back into the bearing housing
and sleeve grooves.
8. Install the outboard labyrinth seal (332A).
NOTICE:
Make sure that the expulsion port is at the 6 o'clock position and is properly seated.
9. Install the upper half of the bearing housing (134).
10. Position the dowel pins between the upper and lower halves of the bearing housing.
Tighten the bearing-housing hex screws.
Assembly of the sleeve/Kingsbury bearing arrangement
If your pump is equipped with the rarely-supplied sleeve/Kingsbury bearing arrangement, refer
to the topics Assemble the radial end (sleeve/ball bearing pumps) and Assemble the thrust end
(sleeve/ball bearing pumps) for sleeve bearing reassembly.
Also see the instructions provided by Kingsbury for specific information regarding this tiltingpad hydrodynamic bearing.
Post-assembly checks
Perform these checks after you assemble the pump, then continue with pump startup:
• Rotate the shaft by hand in order to make sure that it rotates easily and smoothly and that
there is no rubbing.
• Open the isolation valves and check the pump for leaks.
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Maintenance
Assembly references
Maximum torque values for fasteners
Lubricated values are 2/3 of the unlubricated values.
Fastener size
(diameter in
inches) –
threads per inch2210 material ft-lb (Nm)2229 material ft-lb (Nm)2239 material ft-lb (Nm)
For critical services, stock these parts, where applicable:
• Impeller (101)
• Thrust bearing end cover, outboard (ball and sleeve bearing construction only) (109A)
• Shaft (122)
• Radial bearing end cover, inboard (ball bearing construction only) (160)
• Impeller key (178)
An alternative approach is to stock a complete rotating element. This is a group of assembled
parts that includes all rotating components except the bearings (and parts), mechanical seals,
and coupling.
Recommended spare parts
When ordering spare parts, always state the serial number, and indicate the part name and
item number from the relevant sectional drawing. It is imperative for service reliability to have a
sufficient stock of readily available spare parts.
Stock these spare parts, where applicable:
• Cartridge mechanical seal
• Thrust bearing (duplex pair) (112A)
• Oil rings (114, 323)
• Sleeve bearings, two (117) (sleeve bearing construction only)
• Impeller locknut, radial (124)
• Impeller locknut, thrust (130)
• Bearing locknut (136)
• Impeller wear rings (142)
• Casing wear rings (164)
• Radial bearing (168) (ball bearing construction only)
• Labyrinth seal, outboard (332A)
• Labyrinth seal, inboard (333A)
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Maintenance
• Case parting gasket (351)
• Bearing lockwasher (382)
• Bearing end-cover gasket (360A)
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Troubleshooting
Troubleshooting
Operation troubleshooting
SymptomCauseRemedy
The pump is not deliveringThe pump is not primed.Re-prime the pump and check that the pump and
liquid.suction line are full of liquid.
The suction line is clogged.Remove the obstructions.
The impeller is clogged.Back-flush the pump in order to clean the impeller.
The shaft is rotating in the wrong direction.Change the rotation. The rotation must match the
The foot valve or suction pipe opening is notConsult an ITT representative for the proper subsubmerged enough.mersion depth. Use a baffle in order to eliminate
The suction lift is too high.Shorten the suction pipe.
The pump is not producingThe gasket or O-ring has an air leak.Replace the gasket or O-ring.
the rated flow or head.
The pump starts and thenThe pump is not primed.Re-prime the pump and check that the pump and
stops pumping.suction line are full of liquid.
The bearings are runningThe pump and driver are not aligned properly. Realign the pump and driver.
hot.
The pump is noisy or vi-The pump and driver are not aligned properly. Realign the pump and driver.
brates.
The mechanical seal is leaking excessively.
The motor requires exces-The discharge head has dropped below theInstall a throttle valve. If this does not help, then
sive power.rated point and is pumping too much liquid.trim the impeller diameter. If this does not help,
The stuffing box has an air leak.Replace or readjust the mechanical seal.
The impeller is partly clogged.Back-flush the pump in order to clean the impeller.
The clearance between the impeller and theAdjust the impeller clearance.
pump casing is excessive.
The suction head is not sufficient.Make sure that the suction-line shutoff valve is
The impeller is worn or broken.Inspect and replace the impeller if necessary.
The suction line has air or vapor pockets.Rearrange the piping in order to eliminate air
The suction line has an air leak.Repair the leak.
There is not sufficient lubrication.Check the lubricant for suitability and level.
The lubrication was not cooled properly.Check the cooling system.
The impeller is partly clogged.Back-flush the pump in order to clean the impeller.
The impeller or shaft is broken or bent.Replace the impeller or shaft as necessary.
The foundation is not rigid.Tighten the hold-down bolts of the pump and
The bearings are worn.Replace the bearings.
The suction or discharge piping is not an-Anchor the suction or discharge piping as neces-
chored or properly supported.sary according to recommendations in the Hy-
The pump is cavitating.Locate and correct the system problem.
The mechanical seal parts are worn.Replace the worn parts.
The mechanical seal is overheating.Check the lubrication and cooling lines.
The liquid is heavier than expected.Check the specific gravity and viscosity.
The stuffing-box packing is too tight.Readjust the packing. If the packing is worn, then
Rotating parts are rubbing against each other. Check the parts that are wearing for proper
The impeller clearance is too tight.Adjust the impeller clearance.
arrow on the bearing housing or pump casing.
vortices.
fully open and that the line is unobstructed.
pockets.
motor. Make sure the baseplate is properly
grouted without voids or air pockets.
draulic Institute Standards Manual.
then contact your ITT representative.
replace the packing.
clearances.
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Troubleshooting
Alignment troubleshooting
SymptomCauseRemedy
Horizontal (side-to-side) alignment cannot The driver feet are bolt-bound.Loosen the pump's hold-down bolts, and
be obtained (angular or parallel).slide the pump and driver until you
The baseplate is not leveled properly and
is probably twisted.
achieve horizontal alignment.
1. Determine which corners of the baseplate are high or low.
2. Remove or add shims at the appropriate corners.
3. Realign the pump and driver.
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Parts Listings and Cross-Sectionals
Parts Listings and Cross-Sectionals
Parts list
Table 3: Parts list with materials of construction for ball/ball bearing arrangement
The materials in this table are typical. Refer to the order documentation for the actual materials furnished.