Goulds Pumps 3298 User Manual

Installation, Operation,
and Maintenance Manual

3298 Family

Table of Contents

Introduction and Safety .......................................................................................................... 4

Introduction ............................................................................................................................. 4

Safety ...................................................................................................................................... 4

Safety terminology and symbols ........................................................................................... 5

Environmental safety ............................................................................................................ 5

User safety ........................................................................................................................... 6

Ex-approved products .......................................................................................................... 7

Monitoring equipment ........................................................................................................... 8

Product warranty ..................................................................................................................... 8

Transportation and Storage ................................................................................................. 10

Inspect the delivery ............................................................................................................... 10

Inspect the package ........................................................................................................... 10

Inspect the unit ................................................................................................................... 10

Transportation guidelines ...................................................................................................... 10

Pump handling ................................................................................................................... 10

Lifting methods ................................................................................................................... 10

Storage guidelines ................................................................................................................ 13

Pump storage requirements ............................................................................................... 13

Table of Contents

Product Description .............................................................................................................. 14

General description ............................................................................................................... 14

Nameplate information .......................................................................................................... 15

Installation ............................................................................................................................. 18

Preinstallation ....................................................................................................................... 18

Pump location guidelines .................................................................................................... 18

Foundation requirements ................................................................................................... 19

Baseplate-mounting procedures ........................................................................................... 20

Prepare the baseplate for mounting ................................................................................... 20

Install the baseplate using shims or wedges ...................................................................... 20

Install the baseplate using jackscrews ................................................................................ 21

Baseplate-leveling worksheet ............................................................................................. 24

Pump-to-driver alignment ...................................................................................................... 25

Alignment checks ............................................................................................................... 25

Permitted indicator values for alignment checks ................................................................ 26

Alignment measurement guidelines ................................................................................... 26

Attach the dial indicators for alignment ............................................................................... 26

Pump-to-driver alignment instructions ................................................................................ 27

Grout the baseplate .............................................................................................................. 30

Piping checklists ................................................................................................................... 31

General piping checklist ..................................................................................................... 31

Suction-piping checklist ...................................................................................................... 33

Discharge piping checklist .................................................................................................. 35

Final piping checklist .......................................................................................................... 36

Commissioning, Startup, Operation, and Shutdown ......................................................... 37

Preparation for startup .......................................................................................................... 37

Remove the coupling guard .................................................................................................. 38

Check the rotation - Frame Mounted ..................................................................................... 40

Check the rotation - Close Coupled ...................................................................................... 40

Couple the pump and driver .................................................................................................. 40

Install the coupling guard .................................................................................................... 41

3298 Family Installation, Operation, and Maintenance Manual 1

Table of Contents

Bearing lubrication ................................................................................................................ 45

Lubricating oil requirements ............................................................................................... 45

Acceptable oil for lubricating bearings ................................................................................ 46

Lubricate the bearings with oil ............................................................................................ 46

Pump priming ........................................................................................................................ 46

Prime the pump with the suction supply above the pump ................................................... 46

Prime the pump with the suction supply below the pump ................................................... 47

Other methods of priming the pump ................................................................................... 48

Start the pump ...................................................................................................................... 48

Minimum continuous recommended flow ........................................................................... 49

Pump operation precautions ................................................................................................. 50

Shut down the pump ............................................................................................................. 51

Make the final alignment of the pump and driver ................................................................... 51

Maintenance ........................................................................................................................... 53

Maintenance schedule .......................................................................................................... 53

Bearing maintenance ............................................................................................................ 53

Required tools ....................................................................................................................... 54

Disassembly ......................................................................................................................... 55

Disassembly precautions ................................................................................................... 55

Prepare the pump for disassembly ..................................................................................... 55

Disassemble the close-coupled pump ................................................................................ 56

Disassemble the frame-mounted pump .............................................................................. 59

Preassembly inspections ...................................................................................................... 62

Reassembly .......................................................................................................................... 64

Reassembly precautions .................................................................................................... 64

Reassemble the rotary assembly ....................................................................................... 65

Reassemble the close-coupled pump ................................................................................ 72

Reassemble the frame-mounted pump .............................................................................. 73

Complete the reassembly (close-coupled and frame-mounted pumps) ............................. 76

Assembly references .......................................................................................................... 77

Spare parts ........................................................................................................................... 81

Repair kits .......................................................................................................................... 82

Troubleshooting .................................................................................................................... 83

Operation troubleshooting ..................................................................................................... 83

Alignment troubleshooting .................................................................................................... 85

Parts Listings and Cross-Sectionals ................................................................................... 86

3298 XS group close-coupled pump in sizes 1 x 1-1/2 - 5 and 1-1/2 x 2-6 ............................ 86

3298 S group frame-mounted pump in sizes 1 x 1-1/2 - 6, 1 x 1-1/2 - 8, 1-1/2 x 3-7, and

2 x 3-6 ................................................................................................................................... 88

3298 S group close-coupled pump in sizes 1 x 1-1/2 - 6, 1 x 1-1/2 - 8, 1-1/2 x 3-7, and 2

x 3-6 ...................................................................................................................................... 90

3298 M group frame-mounted pump in sizes 3 x 4 - 7, 1-1/2 x 3 - 8, 2 x 3 - 8, 1 x 2 - 10 ....... 93

3298 M group close-coupled pump in sizes 3 x 4 - 7, 1-1/2 x 3 - 8, 2 x 3 - 8, 1 x 2 - 10 ......... 95

3298 L group frame-mounted pump in sizes 1-1/2 x 3 - 10, 2 x 3 - 10, 3 x 4 - 10G, 3 x 4

- 10H, and 4 x 6 - 10 .............................................................................................................. 96

3298 L group close-coupled pump in sizes 1-1/2 x 3 - 10, 2 x 3 - 10, 3 x 4 - 10G, 3 x 4 -

10H, and 4 x 6 - 10 ................................................................................................................ 98

SP3298 S group frame-mounted pump in sizes 1 x 1-1/2 - 6 and 2 x 3 - 6 .......................... 100

SP3298 S group close-coupled pump in sizes 1 x 1-1/2 - 6 and 2 x 3 - 6 ............................ 102

V3298 close-coupled S group pump in sizes 1-1/2 x 2 - 6, 2 x 3 - 6, 1-1/2 x 2 - 8 and M

group size 1-1/2 x 2 - 10 ...................................................................................................... 105

Interchangeability drawings ................................................................................................ 107

Hydraulic coverage charts .................................................................................................. 112

Other Relevant Documentation or Manuals ...................................................................... 115

2 3298 Family Installation, Operation, and Maintenance Manual

Table of Contents

Local ITT Contacts .............................................................................................................. 116

Regional offices .................................................................................................................. 116

3298 Family Installation, Operation, and Maintenance Manual 3

Introduction and Safety

Introduction and Safety

Introduction

Purpose of this manual

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.

4 3298 Family Installation, Operation, and Maintenance Manual

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 level Indication

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.

3298 Family Installation, Operation, and Maintenance Manual 5

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:

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.

• Helmet

• Safety goggles, preferably with side shields

• Protective shoes

• Protective gloves

• Gas mask

• Hearing protection

• First-aid kit

• Safety devices

NOTICE:

Never operate a unit unless safety devices are installed. Also see specific information
about safety devices in other chapters of this manual.

6 3298 Family Installation, Operation, and Maintenance Manual

Magnetic precautions

WARNING:

Magnetic drive pumps contain very strong magnets that can pose health risks. Always observe these
guidelines:

• Avoid working with, being in proximity of, or handling the magnets contained in this pump if you have

• Individuals who have had any surgery, especially to the chest or head, and do not know if metallic

Wash the skin and eyes

1. Follow these procedures for chemicals or hazardous fluids that have come into contact with

Introduction and Safety

any of these conditions:

• An artificial cardiac pacemaker

• An implanted defibrillator

• A metallic prosthetic heart valve

• Internal wound clips, from surgery

• Prosthetic joints

• Metallic wiring

• Any other type of metallic, prosthetic device

clips were surgically implanted need to avoid work on this unit unless their physician can confirm that
no metallic devices exist.

your eyes or your skin:

Condition Action

Chemicals or hazardous
fluids in eyes

Chemicals or hazardous
fluids on skin

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.

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.

3298 Family Installation, Operation, and Maintenance Manual 7

Introduction and Safety

• 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

• 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

8 3298 Family Installation, Operation, and Maintenance Manual

Warranty claim

Introduction and Safety

• Normal wear and tear

ITT assumes no liability for these situations:

• Bodily injuries

• Material damages

• Economic losses

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.

3298 Family Installation, Operation, and Maintenance Manual 9

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

Precautions

WARNING:

Pump handling

WARNING:

NOTICE:

Use a forklift truck or an overhead crane with sufficient capacity to move the pallet with the
pump unit on top. Failure to do so can result in equipment damage.

Lifting methods

WARNING:

• Stay clear of suspended loads.

• Observe accident prevention regulations in force.

• Make sure that the unit cannot roll or fall over and injure people or damage property.

• These pumps might use carbon or ceramic silicon carbide components. Do not drop the pump or
subject it to shock loads as this can damage the internal ceramic components.

• All lifting must be done in compliance with all applicable regulations/standards.

• 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 hoist rings, shackles, slings, and spreaders must be
rated, selected, and used for the entire load being lifted.

• 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.

• Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear
steel-toed shoes at all times.

• Do not attach sling ropes to shaft ends.

10 3298 Family Installation, Operation, and Maintenance Manual

Examples

Transportation and Storage

Table 1: Methods

Pump type Lifting method

A bare pump without lifting han- Use a suitable sling attached properly to solid points like the casing,
dles the flanges, or the frames.

A base-mounted pump Use slings under the pump casing and the drive unit, or under the base

rails.

Figure 1: Proper lifting method for a bare pump

Figure 2: Proper lifting method for a pump with a base and driver

3298 Family Installation, Operation, and Maintenance Manual 11

Transportation and Storage

Figure 3: Proper lifting method for a vertical pump with a driver

Figure 4: Proper lifting method for a vertical pump with no driver

Figure 5: Example of a proper lifting method

12 3298 Family Installation, Operation, and Maintenance Manual

Figure 6: Example of a proper lifting method

Storage guidelines

Pump storage requirements

Storage requirements depend on the amount of time that you store the unit. The normal
packaging is designed only to protect the unit during shipping.

Length of time in storage Storage requirements

Upon receipt/short-term (less than six months)

Long-term (more than six months)

Transportation and Storage

• Store in a covered and dry location.

• Store the unit free from dirt and vibrations.

• 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 drive unit and
coupling manufacturers for their long-term storage procedures.

You can purchase long-term storage treatment with the initial unit order or you can purchase it
and apply it after the units are already in the field. Contact your local ITT sales representative.

3298 Family Installation, Operation, and Maintenance Manual 13

Product Description

Product Description

General description

Model 3298

Model 3298 is a sealless, close-coupled or frame-mounted, centrifugal pump with an enclosed
impeller that is driven by a synchronous magnetic coupling. All sizes of the 3298 meet the
dimensional standards of ANSI B73.1 except for 1x1.5-5 and the 1.5x2-6.

Model SP3298

SP3298 is a self-priming, sealless, close-coupled or frame-mounted, centrifugal pump with an
enclosed impeller that is driven by a synchronous magnetic coupling. The pump and the frame
or adapter feet locations meet ANSI B73.1 dimensional standards.

Model V 3298

V3298 is a vertical in-line, sealless, close-coupled centrifugal pump with an enclosed impeller
that is driven by a synchronous magnetic coupling. Model V3298 meets the dimensional
standards of ANSI B73.2.

Casing

The casings are one-piece cast ductile iron lined with 1/8-inch Tefzel®1 and have ANSI class
150 flanges with a Tefzel® raised face. The 3298 and SP3298 are end-suction, top centerline
discharge, and are self-venting. The V3298 is side-suction, side-discharge, and is also self­venting.

Impeller magnet assembly

The 3298 family uses a one- or two-piece impeller magnet assembly. The magnet ring is
balanced to ISO 1940 G6.3 levels and is sealed within the solid, enclosed Tefzel® impeller
magnet assembly.

Stationary shaft

The impeller magnet assembly rotates about a solid stationary silicon carbide shaft. The shaft
is supported at one end by the containment shell and at the other end by the Tefzel® bearing
spider.

Bearing spider

The bearing spider, constructed from solid Tefzel®, houses one of the key silicon carbide thrust
bearings in the pump and supports the stationary shaft at one end.

Rear impeller wear ring

A rear impeller wear ring is standard on M and L group pumps. A wear ring is not required on
theS group. The wear ring is pressed into the rear of the impeller assembly. The wear ring
reduces axial thrust in the M and L group pumps.

Magnetic coupling

The magnetic coupling is a coaxial synchronous type using rare earth magnets of neodymium
iron (NdFe). This concept results in a compact design and allows the impeller to turn at the
same speed as the motor, which means that there is no slip between the drive and the driven
magnets.

Containment shell

The containment shell isolates the pumped liquid from the atmosphere. The containment shell
construction is backed with vinylester FRP.

14 3298 Family Installation, Operation, and Maintenance Manual

Bearings

The standard material for radial bearings and thrust bearings is carbon. Pure Sintered Alpha
Grade Silicon Carbide or DryGuard™ Pure Sintered Alpha Grade Silicon Carbide are optional.

Standard close-coupled mounting

The drive magnet assembly is keyed, setscrewed, and mounted directly to the motor shaft. This
arrangement eliminates the need to perform pump-to-motor alignment.

Optional frame-mounted power end

The standard configuration for the optional power end is cast iron with flood-oil-lubricated ball
bearings. Pure oil mist systems are available as an option. For the protection and reliability of
the bearings and the lubricant, a labyrinth seal is provided. On the inboard side a lip seal is
used to prevent leakage of oil into the magnetic drive assembly. The frame-mounted power end
is not available on the V3298.

Nameplate information

Important information for ordering

Every pump has nameplates that provide information about the pump. The nameplates are
located on the casing and the bearing frame.

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.

Product Description

Nameplate types

Nameplate Description

Pump casing Provides information about the hydraulic characteristics of the pump.

The formula for the pump size is: Discharge x Suction - Nominal Maximum Impeller
Diameter in inches.

(Example: 2x3-8)
Bearing frame Provides information about the lubrication system used.
ATEX If applicable, your pump unit might have an ATEX nameplate affixed to the pump, the

baseplate, or the discharge head. The nameplate provides information about the

ATEX specifications of this pump.

Nameplate on the pump casing using English units

Table 2: Explanation of nameplate on the pump casing

Nameplate field Explanation

IMPLR. DIA. Impeller diameter, in inches

3298 Family Installation, Operation, and Maintenance Manual 15

Product Description

Nameplate field Explanation

MAX. DIA. Maximum impeller diameter, in inches
GPM Rated pump flow, in gallons per minute
FT HD Rated pump head, in feet
RPM Rated pump speed, revolutions per minute
MOD. Pump model
SIZE Size of the pump
STD. NO. ANSI standard designation
MAT L. CONST. Material of which the pump is constructed
SER. NO. Serial number of the pump
MAX DSGN PSI Maximum pressure at 100ºF according to the pump design

@ 100ºF

Nameplate on the pump casing using metric units

Table 3: Explanation of the nameplate on the pump casing

Nameplate field Explanation

IMPLR. DIA. Impeller diameter
MAX. DIA. Maximum impeller diameter
M3/HR Rated pump flow, in cubic meters per hour
M HD Rated pump head, in meters
RPM Rated pump speed, in revolutions per minute
MOD. Pump model
SIZE Size of the pump
STD. NO. ANSI standard designation
MAT L. CONST Material of which the pump is constructed
SER. NO. Serial number of the pump
MAX. DSGN KG/CM3@ Kilograms per cubic centimeter at 20°C

20°C

Nameplate on the bearing frame

Table 4: Explanation of the nameplate on the bearing frame

Nameplate field Explanation

BRG. O. B. Outboard bearing designation
BRG. I. B. Inboard bearing designation
S/N Serial number of the pump
LUBE Lubricant, oil or grease

ATEX nameplate

Nameplate field Explanation

II Group 2

16 3298 Family Installation, Operation, and Maintenance Manual

Product Description

Nameplate field Explanation

2 Category 2
G/D Pump can be used when gas and dust are present
T4 Temperature class

Table 5: Temperature class definitions

Code Maximum permissible surface Minimum permissible surface

T1 842 (450) 700 (372)
T2 572 (300) 530 (277)
T3 392 (200) 350 (177)
T4 275 (135) 235 (113)
T5 212 (100) Option not available
T6 185 (85) Option not available

temperature in °F (°C) temperature in °F (°C)

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.

3298 Family Installation, Operation, and Maintenance Manual 17

Installation

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.

Evaluate the installation in order to determine that the Net Positive Suction Head Available
(NPSHA) meets or exceeds the Net Positive Suction Head Required (NPSHR), as stated by the
pump performance curve.

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.

Guideline Explanation/comment

Keep the pump as close to the liquid source as This minimizes the friction loss and keeps the
practically possible. suction piping as short as possible.

Make sure that the space around the pump is This facilitates ventilation, inspection, maintenance,
sufficient. and service.

If you require lifting equipment such as a hoist or This 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 damage This is applicable if nothing else is specified.
due to rain, flooding, and freezing temperatures.

Do not install and operate the equipment in closed Acceptable 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

If the pump location is overhead, undertake special Consider a consultation with a noise specialist.
precautions to reduce possible noise transmission.

• 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.

18 3298 Family Installation, Operation, and Maintenance Manual

Foundation requirements

Precautions

CAUTION:

If your pump is a Model NM3171, NM3196, 3198, 3298, V3298, SP3298, 4150, 4550, or 3107 there is a
possible risk of static electric discharge from plastic parts that are not properly grounded. If the pumped
fluid is non-conductive, drain and flush the pump with a conductive fluid under conditions that will not
allow for a spark to be released to the atmosphere.

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.

• Sleeve-type and J-type foundation bolts are most commonly used. Both designs allow
movement for the final bolt adjustment.

Sleeve-type bolts

Installation

J-type bolts

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

3298 Family Installation, Operation, and Maintenance Manual 19

Installation

Baseplate-mounting procedures

Prepare the baseplate for mounting

1. Remove all the attached equipment from the baseplate.

2. Clean the underside of the baseplate completely.

3. If applicable, coat the underside of the baseplate with an epoxy primer.
Use an epoxy primer only if you used an epoxy-based grout.

4. Remove the rust-proofing coat from the machined mounting pads using an appropriate
solvent.

5. Remove water and debris from the foundation-bolt holes.

Install the baseplate using shims or wedges

Required tools:

• Two sets of shims or wedges for each foundation bolt

• Two machinist's levels

• Baseplate-leveling worksheet

This procedure is applicable to cast iron and fabricated steel baseplates.

1. Remove water and debris from the anchor bolt holes and sleeves.

2. If you use sleeve-type bolts, fill the bolt sleeves with packing material or rags to prevent
grout from entering the bolt holes.

3. Put the sets of wedges or shims on each side of each foundation bolt.
Make sure that the wedges extend 0.75 in. (19 mm) to 1.5 in. (38 mm) above the foundation
to provide adequate space for grouting. The wedges will provide adequate support for the
baseplate after it is grouted.

1. Shims or wedges

Figure 7: Top view

1. Shims or wedges

Figure 8: Side view

4. Lower the baseplate carefully onto the foundation bolts.

5. Put the machinist's levels across the mounting pads of the driver and the mounting pads of
the pump.

20 3298 Family Installation, Operation, and Maintenance Manual

NOTICE:

Remove all dirt from the mounting pads in order to make sure that you achieve the correct
leveling. Failure to do so can result in equipment damage or decreased performance.

6. Level the baseplate both lengthwise and across by adding or removing shims or moving the
wedges.
These are the leveling tolerances:

• A maximum difference of 0.125 in. (3.2 mm) lengthwise

• A maximum difference of 0.059 in. (1.5 mm) across

You can use the baseplate-leveling worksheet when you take the readings.

7. Hand-tighten the nuts for the foundation.

Install the baseplate using jackscrews

Tools required:

• Anti-seize compound

• Jackscrews

• Bar stock

• Two machinist's levels

• Baseplate-leveling worksheet

This procedure applies to the feature-fabricated steel baseplate and the advantage base
baseplate.

1. Apply an anti-seize compound on the jackscrews.
The compound makes it easier to remove the screws after you grout.

2. Lower the baseplate carefully onto the foundation bolts and perform these steps:
a) Cut the plates from the bar stock and chamfer the edges of the plates in order to reduce

stress concentrations.
b) Put the plates between the jackscrews and the foundation surface.
c) Use the four jackscrews in the corners in order to raise the baseplate above the

foundation.

Make sure that the distance between the baseplate and the foundation surface is

between 0.75 in. (19 mm) and 1.50 in. (38 mm).
d) Make sure that the center jackscrews do not touch the foundation surface yet.

Installation

1. Jackscrew

2. Baseplate

3. Foundation

4. Plate

3. Level the driver mounting pads:

3298 Family Installation, Operation, and Maintenance Manual 21

Installation

NOTICE:

Remove all dirt from the mounting pads in order to make sure that you achieve the correct
leveling. Failure to do so can result in equipment damage or decreased performance.

a) Put one machinist's level lengthwise on one of the two pads.
b) Put the other machinist's level across the ends of the two pads.
c) Level the pads by adjusting the four jackscrews in the corners.

Make sure that the machinist's level readings are as close to zero as possible, both

lengthwise and across.

Use the baseplate-leveling worksheet when you take the readings.

1. Machinist's levels

2. Driver's mounting pads

3. Foundation bolts

4. Jackscrews

5. Grout hole

6. Pump's mounting pads

4. Turn the center jackscrews down so that they rest on their plates on the foundation surface.

5. Level the pump mounting pads:

NOTICE:

Remove all dirt from the mounting pads in order to make sure that you achieve the correct
leveling. Failure to do so can result in equipment damage or decreased performance.

a) Put one machinist's level lengthwise on one of the two pads.
b) Put the other level across the center of the two pads.
c) Level the pads by adjusting the four jackscrews in the corners.

Make sure that the machinist's level readings are as close to zero as possible, both

lengthwise and across.

1. Driver's mounting pads

2. Machinist's levels

3. Foundation bolts

4. Jackscrews

5. Grout hole

6. Pump's mounting pads

6. Hand-tighten the nuts for the foundation bolts.

22 3298 Family Installation, Operation, and Maintenance Manual

7. Check that the driver's mounting pads are level and adjust the jackscrews and the
foundation bolts if necessary.
The correct level measurement is a maximum of 0.002 in./ft (0.0167 mm/m).

The maximum variation from one side of the baseplate to the other is 0.015 in. (0.38 mm).

Installation

3298 Family Installation, Operation, and Maintenance Manual 23

Installation

Baseplate-leveling worksheet

24 3298 Family Installation, Operation, and Maintenance Manual

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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

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.

Installation

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 check When it is used

Initial alignment (cold alignment) Prior to operation when the pump and the driver are at ambient
check temperature.

Final alignment (hot alignment) After operation when the pump and the driver are at operating
check temperature.

Initial alignment (cold alignment) checks

When Why

Before you grout the baseplate This ensures that alignment can be accomplished.
After you grout the baseplate This ensures that no changes have occurred during the grouting

After you connect the piping This ensures that pipe strains have not altered the alignment.

process.

If changes have occurred, you must alter the piping to remove pipe
strains on the pump flanges.

3298 Family Installation, Operation, and Maintenance Manual 25

Installation

Final alignment (hot alignment) checks

When Why

After the first run This ensures correct alignment when both the pump and the driver

Periodically This 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.

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

Guideline Explanation

Rotate the pump coupling half and the driver This 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 make This prevents strain on the piping installations.
adjustments.

Make sure that the hold-down bolts for the driver This 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 driver This 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 mechanical This 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.

26 3298 Family Installation, Operation, and Maintenance Manual

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.

Pump-to-driver alignment instructions

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...

Negative The coupling halves are farther apart at the

Positive The coupling halves are closer at the bottom than

Installation

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.

Figure 9: Side view of an incorrect vertical alignment

4. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for angular alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

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...

Negative The coupling halves are farther apart on the right side than

Positive The coupling halves are closer together on the right side

the left. Perform one of these steps:

• Slide the shaft end of the driver to the left.

• Slide the opposite end to the right.

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.

3298 Family Installation, Operation, and Maintenance Manual 27

Installation

When the reading value is... Then...

Figure 10: Top view of an incorrect horizontal alignment

4. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for angular alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

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.

When aligning a cold unit, see the Cold settings for vertical parallel alignment table.

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.

When the reading value is... Then...

Negative The pump coupling half (X) is lower than the

Positive The pump coupling half (X) is higher than the

driver coupling half (Y). Remove shims of a
thickness equal to half of the indicator reading
value under each driver foot.

driver coupling half (Y). Add shims of a thickness
equal to half of the indicator reading value to each
driver foot.

NOTICE:

Figure 11: Side view of an incorrect vertical alignment

4. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for parallel alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

During installation, when the pump is cold, adjust the parallel vertical alignment to a setting
that allows for expansion rates of the pump and drive at operating temperature:

28 3298 Family Installation, Operation, and Maintenance Manual

Table 6: Cold settings for parallel vertical alignment

If the operating temperature of the pumped Then, set the driver shaft parallel vertical
liquid is... alignment...

50°F (10°C) 0.002 in. (0.05 mm) lower
150°F (65 ° C) 0.001 in. (0.03 mm) higher
250°F (120° C) 0.005 in. (0.12 mm) higher

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...

Negative The driver coupling half (Y) is to the left of the

Positive The driver coupling half (Y) is to the right of the

4. Slide the driver carefully in the appropriate direction.

Installation

pump coupling half (X).

pump coupling half (X).

NOTICE:Make sure to slide the driver evenly. Failure to do so can negatively affect
horizontal angular correction.

Figure 12: Top view of an incorrect horizontal alignment

5. Repeat the previous steps until the permitted reading value is achieved.
Maximum permitted value for parallel alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

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.
Maximum permitted value for angular alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

Maximum permitted value for parallel alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

When the procedure is complete, both the angular and parallel alignment must meet the
permitted tolerances.

3298 Family Installation, Operation, and Maintenance Manual 29

Installation

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.
Maximum permitted value for angular alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

Maximum permitted value for parallel alignment:

• 0.002 in. (0.05 mm) total indicated runout at operating temperature

When the procedure is complete, both the angular and parallel alignment must meet the
permitted tolerances.

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.

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.

5. Allow the grout to set.

1. Baseplate

2. Shims or wedges

3. Grout

4. Foundation

5. Sleeve

6. Dam

7. Bolt

30 3298 Family Installation, Operation, and Maintenance Manual

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. Tighten the foundation bolts.

8. Recheck the alignment.

Piping checklists

Installation

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.

General piping checklist

Precautions

WARNING:

• The heating of water and other fluids causes volumetric expansion. The associated forces can cause
the failure of system components and the release of high-temperature fluids. In order to prevent this,
install properly sized and located compression tanks and pressure-relief valves. Failure to follow
these instructions can result in serious personal injury or death, or property damage.

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.

CAUTION:

Flange loads from the piping system, including those from the thermal expansion of the piping, must not
exceed the limits of the pump. Deformation can result in contact with rotating parts, which can result in
excess heat generation, sparks, and premature failure.

3298 Family Installation, Operation, and Maintenance Manual 31

Installation

Piping guidelines

Checklist

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.

Check Explanation/comment Checked

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 and the coupling
flanges. • Wear on the pump bearings, seal, and shafting

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 and the driver 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 This helps to prevent misalignment due to linear expan­elevated temperatures, make sion of the piping.
sure that the expansion loops and
joints are properly installed.

• Strain on the pump

• Misalignment between the pump and the drive unit

If an isolation base is used, then use flexible piping on
the discharge and suction connections.

If the pump housing has threaded connections, then use
a Teflon tape sealer or a high-quality thread sealant.

This helps to prevent misalignment due to thermal
expansion of the piping.

Alignment criteria for pump flanges

Type Criteria

Axial The flange gasket thickness is ±0.03 in. (0.8 mm).
Parallel Align the flange to be within 0.001 in./in. to 0.03 in./

Concentric You can easily install the flange bolts by hand.

in. (0.025 mm/mm to 0.8 mm/mm) of the flange
diameter.

32 3298 Family Installation, Operation, and Maintenance Manual

Example: Installation for expansion

Correct Incorrect

1. Expansion loop/joint

Suction-piping checklist

Installation

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.

Net positive suction head available (NPSHA) must always exceed NPSH required (NPSHR) as
shown on the published performance curve of the pump.

If a suction lift over 10 ft. (3 m) and a liquid temperature higher than 120° F (49°C) are required,
then read the pump performance curve for the NPSHR.

Suction-piping checks

Check Explanation/comment Checked

Flush all suction piping before you This reduces the risk of pump
connect it to the pump. operation problems.

Check that the distance between This minimizes the risk of cavita­the inlet flange of the pump and tion in the suction inlet of the
the closest elbow is at least two pump due to turbulence.
pipe diameters.

Check that elbows in general do See the Example sections for il­not have sharp bends. lustrations.

Check that the suction piping is The suction piping must never
one or two sizes larger than the have a smaller diameter than the
suction inlet of the pump. suction inlet of the pump.

Install an eccentric reducer be- See the Example sections for il­tween the pump inlet and the lustrations.
suction piping.

Check that the eccentric reducer See the example illustrations.
at the suction flange of the pump
has the following properties:

• Sloping side down

• Horizontal side at the top

See the Example sections for il­lustrations.

3298 Family Installation, Operation, and Maintenance Manual 33

Installation

Check Explanation/comment Checked

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 operates This recommendation helps you
from the same liquid source, to 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

Check Explanation/comment Checked

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.

Check that all joints are air-tight. —
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.

Mesh holes with a minimum diam­eter of 1/16 in. (1.6 mm) are
recommended.

pump inlet.

Liquid source above the pump

Check Explanation/comment Checked

Check that an isolation valve is This permits you to close the line
installed in the suction piping at a during pump inspection and main­distance of at least two times the tenance.
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.

Make sure that the size of the —
entrance from the supply is one or
two sizes larger than the suction
pipe.

Make sure that the suction piping This prevents air from entering the
is adequately submerged below pump through a suction vortex.
the surface of the liquid source.

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.

34 3298 Family Installation, Operation, and Maintenance Manual

Example: Elbow close to the pump suction inlet

Correct Incorrect

The correct distance between the inlet flange of the
pump and the closest elbow is at least two pipe
diameters.

1. Enough distance to prevent cavitation

2. Eccentric reducer with a level top

Example: Suction piping equipment

Correct Incorrect

Installation

1. Suction pipe sloping upwards from liquid source

2. Long-radius elbow

3. Strainer

4. Foot valve

5. Eccentric reducer with a level top

1. Air pocket, because the eccentric reducer is not
used and because the suction piping does not
slope gradually upward from the liquid source

Discharge piping checklist

Checklist

Check Explanation/comment Checked

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.

3298 Family Installation, Operation, and Maintenance Manual 35

• Priming

• Regulation of flow

• Inspection and maintenance of the pump
See Example: Discharge piping equipment for
illustrations.

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.

See Example: Discharge piping equipment for
illustrations.

Installation

Check Explanation/comment Checked

If increasers are used, check that they See Example: Discharge piping equipment for
are installed between the pump and illustrations.
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.

Example: Discharge piping equipment

Correct Incorrect

1. Bypass line

2. Shut-off valve

3. Check valve

4. Discharge isolation valve

Final piping checklist

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.

Check Explanation/comment Checked

Check that the shaft rotates Rotate the shaft by hand. Make
smoothly. sure there is no rubbing that can

Re-check the alignment to make If pipe strain exists, then correct
sure that pipe strain has not the piping.
caused any misalignment.

1. Check valve (incorrect position)

2. The isolation valve should not be positioned
between the check valve and the pump.

lead to excess heat generation or
sparks.

36 3298 Family Installation, Operation, and Maintenance Manual

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.

• Do not operate the pump below the minimum rated flows or with the suction or discharge valves
closed. These conditions can create an explosive hazard due to vaporization of pumped fluid and
can quickly lead to pump failure and physical injury.

• 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.

• Never operate the pump without the coupling guard correctly installed.

• 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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.

• When installing in a potentially explosive environment, make sure that the motor is properly certified.

• 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.

DANGER:

Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Assure all openings are sealed
off prior to filling pump.

Precautions

NOTICE:

• Verify the driver settings before you start any pump.

• Make sure that the warm-up rate does not exceed 2.5°F (1.4°C) per minute.

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.

3298 Family Installation, Operation, and Maintenance Manual 37

Commissioning, Startup, Operation, and Shutdown

• Run a new or rebuilt pump at a speed that provides enough flow to flush and cool the
close-running surfaces of the stuffing-box bushing.

• If temperatures of the pumped fluid will exceed 200°F (93°C), then warm up the pump prior
to operation. Circulate a small amount of fluid through the pump until the casing
temperature is within 100°F (38°C) of the fluid temperature. Accomplish this by flowing
fluid from pump inlet to discharge drain (optionally, the casing vent can be included in
warm-up circuit but not required). Soak for (2) hours at process fluid temperature.

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.

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.

38 3298 Family Installation, Operation, and Maintenance Manual

Commissioning, Startup, Operation, and Shutdown

b) Lift upwards.

1. Annular groove

2. Driver half of the coupling guard

3. Driver

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.

1. Annular groove

2. Pump-side end plate

3. Driver

4. Pump half of the coupling guard

3298 Family Installation, Operation, and Maintenance Manual 39

Commissioning, Startup, Operation, and Shutdown

Check the rotation - Frame Mounted

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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

Frame Mounted:

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 close-coupled
frame.

6. Lock out power to the driver.

Check the rotation - Close Coupled

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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

Close Coupled:

1. Lock out power to the driver.

2. Make sure that everyone is clear. Jog the driver momentarily, about a half a second. You
should be able to check motor rotation by observing the motor fan direction. The direction
should be the same as the arrow on the close coupled frame.

3. 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.

• Electrical connections must be made by certified electricians in compliance with all international,
national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific
instructions and recommendations.

Couplings must have proper certification to be used in an ATEX classified environment. Use
the instructions from the coupling manufacturer in order to lubricate and install the coupling.

40 3298 Family Installation, Operation, and Maintenance Manual

Refer to driver/coupling/gear manufacturers IOM for specific instructions and recommenda­tions.

Install the coupling guard

WARNING:

• Never operate a pump without a properly installed coupling guard. Personal injury will occur if you
run the pump without a coupling guard.

• Electrical Connections must be made by certified electricians in compliance with all international,
national, state, and local rules.

• Refer to driver/coupling/gear manufacturers IOM for specific instructions and recommendations.

• 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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

• The coupling used in an Ex-classified environment must be properly certified and must be
constructed from a non-sparking material.

Required parts:

Commissioning, Startup, Operation, and Shutdown

1. End plate, drive end

2. End plate, pump end

3. Guard half, 2 required

4. 3/8-16 nut, 3 required

5. 3/8 in. washer

6. 3/8-16 x 2 in. hex head bolt, 3 required

1. De-energize the motor, place the motor in a locked-out position, and place a caution tag at
the starter that indicates the disconnect.

2. Put the pump-side end plate in place.
If the pump-side end plate is already in place, make any necessary coupling adjustments
and then proceed to the next step.

If the pump size is... Then...

STX, MTX, LTX Align the pump-side end plate to the bearing frame. You do not need to

3298 Family Installation, Operation, and Maintenance Manual 41

adjust the impeller.

Commissioning, Startup, Operation, and Shutdown

If the pump size is... Then...

1. Driver

2. Pump end plate

3. Bearing housing

4. Jam nut

3. Put the pump-half of the coupling guard in place:
a) Slightly spread the bottom apart.

b) Place the coupling guard half over the pump-side end plate.

1. Annular groove

2. Pump-side end plate

3. Driver

4. Pump half of the coupling guard
The annular groove in the coupling guard half must fit around the end plate.

42 3298 Family Installation, Operation, and Maintenance Manual

Commissioning, Startup, Operation, and Shutdown

1. Annular groove

2. End plate (pump end)

3. Guard half

4. Use a bolt, a nut, and two washers to secure the coupling guard half to the end plate.
Tighten securely.

1. Nut

2. Washer

3. Bolt

5. Put the driver half of the coupling guard in place:
a) Slightly spread the bottom apart.

3298 Family Installation, Operation, and Maintenance Manual 43

Commissioning, Startup, Operation, and Shutdown

b) Place the driver half of the coupling guard over the pump half of the coupling guard.

The annular groove in the coupling guard half must face the motor.

1. Annular groove

2. Driver half of the coupling guard

3. Driver

6. Place the driver-side end plate over the motor shaft.

7. Place the driver-side end plate in the annular groove of the driver-half of the coupling
guard.

8. Use a bolt, a nut, and two washers to secure the coupling guard half to the end plate. Hand­tighten only.
The hole is located on the driver-side of the coupling guard half.

44 3298 Family Installation, Operation, and Maintenance Manual

Commissioning, Startup, Operation, and Shutdown

9. Slide the driver-half of the coupling guard towards the motor so that the coupling guard
completely covers the shafts and coupling.

10. Use a nut, a bolt, and two washers to secure the coupling guard halves together.

11. Tighten all nuts on the guard assembly.

WARNING:

Never operate the pump without the coupling guard correctly installed.

Bearing lubrication

WARNING:

Pumps are shipped without oil. Oil-lubricated anti-friction bearings must be lubricated at the job site.

These bearing lubrication sections list different pumped-fluid temperatures. If your pump is
ATEX certified and your pumped-fluid temperature exceeds the permitted temperature values,
then consult your ITT representative.

Lubrication requirements

Pump type Pump model Requirements

Close coupled 3298 Close coupled pumps do not have

Frame mounted 3298

Lubricating oil requirements

SP3298
V3298

SP3298

bearings which require lubrication.

• Oil level is measured through
the sight glass.

• Oil level must not fall below
the center of the sight glass.

• An increase in level may be
noted after startup due to oil
circulation within the bearing
frame.

Quality requirements

Use a high quality turbine oil with rust and oxidation inhibitors.

3298 Family Installation, Operation, and Maintenance Manual 45

Commissioning, Startup, Operation, and Shutdown

Lubricating oil requirements

Bearing temperature below Bearing temperature above
180°F (82 ° C) 180°F (82°C)

ISO grade ISO viscosity grade 68 ISO viscosity grade 100

Approximate SSU at 100°F 300 470
(38°C)

DIN 51517 C68 C100
Kinematic viscosity at 105 Â ° F 68 100

(40°C) mm2/sec

Acceptable oil for lubricating bearings

Acceptable lubricants

Brand Lubricant type

Chevron GTS Oil 68
Exxon NUTHO H68
Mobil DTE 26 300 SSU @ 100°F (38°C)
Philips Mangus Oil 315

Shell Tellus Oil 68
Gulf Harmony 68

MM motor oil SAE 20-20W
HDS motor oil SAE 20-20W

Lubricate the bearings with oil

Use a high-quality turbine oil with rust and oxidation inhibitors.

1. Remove the fill plug.

2. Fill the bearing frame with oil through the filler connection, which is located on top of the
bearing frame.
Fill the bearing frame with oil until the oil level reaches the middle of the sight glass (319).

3. Replace the fill plug.

Pump priming

Prime the pump with the suction supply above the pump

1. Slowly open the suction isolation valve.

2. Open the air vents on the suction and discharge piping until the pumped fluid flows out.

3. Close the air vents.

46 3298 Family Installation, Operation, and Maintenance Manual

Commissioning, Startup, Operation, and Shutdown

1. Discharge isolation valve

2. Check valve

3. Suction isolation valve

Prime the pump with the suction supply below the pump

Use a foot valve and an outside source of liquid in order to prime the pump. The liquid can
come from one of these sources:

• A priming pump

• A pressurized discharge line

• Another outside supply

1. Close the discharge isolation valve.

2. Open the air vent valves in the casing.

3. Open the valve in the outside supply line until only liquid escapes from the vent valves.

4. Close the vent valves.

5. Close the outside supply line.

This illustration is an example of priming the pump with a foot valve and an outside supply:

1. Discharge isolation valve

2. Shutoff valve

3. From outside supply

4. Foot valve

5. Check valve

3298 Family Installation, Operation, and Maintenance Manual 47

Commissioning, Startup, Operation, and Shutdown

This illustration is an example of priming the pump with a foot valve using a bypass around the
check valve:

1. By-pass line

2. Shutoff valve

3. Foot valve

4. Check valve

5. Discharge isolation valve

Other methods of priming the pump

You can also use these methods in order to prime the pump:

• Prime by ejector

• Prime by automatic priming pump

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.

WARNING:

Continuous operation against a closed discharge valve can vaporize liquid. This condition can cause an
explosion due to confined vapor that is under high pressure and temperature.

48 3298 Family Installation, Operation, and Maintenance Manual

Commissioning, Startup, Operation, and Shutdown

CAUTION:

• Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop the
driver, reprime, and attempt to restart the pump.

• Observe the pump for vibration levels, bearing temperature, and excessive noise. If normal levels
are exceeded, shut down the pump and resolve the issue.

• On pure or purge-oil mist-lubricated units, remove the viewing port plugs to verify that oil mist
flowing properly. Replace the plugs.

• On frame mounted units, ensure that the oil level is correct prior to starting pump. Close coupled
pumps do not have oil lubricated bearings.

• Ensure all flush and cooling systems are operating correctly prior to starting pump.

• Continuous operation against a closed discharge valve will cause the pump to overheat.
Overheating the magnetic drive assembly will weaken or ruin the magnets.

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
discharge pressure.

5. If the pump fails to reach the correct pressure, perform these steps:
a) Stop the driver.

b) Prime the pump again.
c) Restart the driver.

6. Monitor the pump while it is operating:
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.

7. Repeat steps 5 and 6 until the pump runs properly.

Minimum continuous recommended flow

Group Pump size 60 Hertz 50 Hertz

GPM m3/hr

3600 1800 1200 3000 1500 1000

3298
XS 1 x 1.5 - 5 1 0.5 — 0.2 0.1 —

1½ x 2 - 6 5 3 — 1 0.5 —

S 1 x 1.5 - 6 5 3 2 2 1 0.5

1 x 1.5 - 8 15 8 4 3 2 1
1½ x 3 - 7 20 10 6 5 2 1
2 x 3 - 6 30 15 8 6 3 1

M 1½ x 3 - 8 30 15 8 6 3 1

2 x 3 - 8 50 9 5 9 2 1
3 x 4 - 7 80 13 9 18 9 6
1 x 2 - 10 30 5 3 5 3 2

L 1½ x 3 - 10 60 30 20 11 5 4

2 x 3 - 10 100 50 33 19 10 6
3 x 4 - 10G 175 90 60 33 16 11
3 x 4 - 10H - 90 30 — 17 3
4 x 6 - 10 - 475

SP3298

5

325

5

— 95

5

55

5

3298 Family Installation, Operation, and Maintenance Manual 49

Commissioning, Startup, Operation, and Shutdown

Group Pump size 60 Hertz 50 Hertz

GPM m3/hr

3600 1800 1200 3000 1500 1000

S 1 x 1½ - 6 5 3 2 2 1 0.5

2 x 3 - 6 30 15 8 6 3 1
V3298
S 1½ x 2 - 6 5 3 2 2 1 0.5

1½ 2 - 8 60 30 20 11 7 4

2 x 3 - 6 60 30 20 11 7 4
M 1½ x 2 - 10 30 5 3 5 0.7 0.5

1. All flows are for a continuous operation of 24 hours a day, seven days a week.

2. These values are based on water with a specific gravity of 1.0 and specific heat of 1.0.

3. You can reliably operate the pumps at lower minimum flows under intermittent operating conditions

(less than 15% of the time). Contact ITT for more information.

4. Contact the factory for pump efficiency at minimum flows.

5. You can operate the pump at substantially lower flows with an adequate NPSH margin. Contact ITT

for details.

Pump operation precautions

General considerations

WARNING:

• Never operate the pump below the minimum rated flow, when dry, or without prime.

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 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 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.

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.

50 3298 Family Installation, Operation, and Maintenance Manual

CAUTION:

• The pump and system must be free of foreign objects. If pump becomes plugged, shut down and
unplug prior to restarting pump.

• 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.

Temperature ratings

CAUTION:

Do not operate the pump above the rated temperature range of the magnets. This will weaken or ruin the
magnets. The rated temperature is 250°F (121°C) for all sizes.

Commissioning, Startup, Operation, and Shutdown

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.

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.

• Electrical connections must be made by certified electricians in compliance with all international,

national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific

instructions and recommendations.

• 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.

3298 Family Installation, Operation, and Maintenance Manual 51

Commissioning, Startup, Operation, and Shutdown

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.

52 3298 Family Installation, Operation, and Maintenance Manual

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.

Maintenance

Three-month inspections

Perform these tasks every three months:

• Check that the foundation and the hold-down bolts are tight.

• 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.

Bearing maintenance

Lubrication schedule

Type of bearing First lubrication Lubrication intervals

Oil lubricated Change the oil after 200 hours for After the first 200 hours, change

new bearings. the oil every 4000 operating hours

or every six months.

3298 Family Installation, Operation, and Maintenance Manual 53

Maintenance

Required tools

WARNING:

This pump contains extremely strong magnets. You must use non-magnetic tools and work surfaces.

Non-magnetic tools

• 9/16-inch and 3/4-inch socket wrench

• Non-metallic hammer

Tools

• Long T-handle hex wrench in size 3/16-inch

• 1/2-inch, 9/16-inch, and 3/4-inch sockets

• Socket wrench with a minimum extension of 4 in. (10 cm)

• Screw drivers

• Lip seal driver

• Hammer

• Three 5/16-inch x 2-inch hex capscrews

• Three 5/8-inch x 4-inch hex capscrews

Tool kits

You can use these available tool kits in order to ease the assembly and disassembly of these
pumps:

Group Kit number Optional tools
Tool number Description

XS R298TK04 B03309A 1 x 1½-5 bearing spider installation driver

B04370A 1½ x2-6 bearing spider installation driver
B03310A Radial bearing installation tool
A06872A Bearing press support tool

S R298TK01 B02496A Bearing spider installation driver

B02497A Radial bearing installation tool

M R298TK02 B03147A Bearing spider installation driver

B03148A Bearing spider installation driver
B03149A Radial bearing installation tool
B03189A Magnet assembly/disassembly guide rods

L R298TK03 B03191A Bearing spider installation driver

B03175A Radial bearing installation tool
B03149A Radial bearing installation tool
B03189A Magnetic assembly/disassembly guide rods

54 3298 Family Installation, Operation, and Maintenance Manual

Disassembly

Disassembly precautions

WARNING:

• Chemical hazard. You must individually decontaminate each component according to all federal,
state, local, and company environmental regulations.

• A build up of gases within the pump, sealing system, or process-piping system can result in an
explosive environment within the pump. Make sure that the process piping system, pump, and
sealing system are properly vented prior to operation.

• Burn Hazard. Coupling may be hot. Use proper protection when handling.

• Burn Hazard. use proper protection when handling bearings.

• Worn parts may have sharp edges. Wear heavy work gloves while handling.

• Chemical Hazard. A small amount of liquid may be left in the pump.

• Process fluid leaks can result in an explosive atmosphere. Follow all pump and seal assembly
procedures.

• Make sure that the pump is isolated from the system and that pressure is relieved before you
disassemble the pump, remove plugs, open vent or drain valves, or disconnect the piping.

• 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.

Maintenance

CAUTION:

• You must keep the shop area clean and free of any substances that can contaminate the magnets,
such as ferrous metals.

• The magnets in this unit are extremely powerful. Beware of serious injury to fingers and hands.
Keep magnetic drive components and magnetic tools apart by a minimum of 3 ft (1 m).

NOTICE:

Use a bench with a non-magnetic work surface such as wood or brass when you work on the
pump.

Prepare the pump for disassembly

1. Lock out power to the 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.

• Electrical connections must be made by certified electricians in compliance with all international,
national, state, and local rules.

• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific
instructions and recommendations.

2. Shut off all valves that control flow to and from the pump.

3. Drain and flush the pump before you remove it from the piping.

4. Isolate the pump from the system and then flush the pump using a compatible liquid.

5. Disconnect all piping and auxiliary equipment.

6. For the frame-mounted pump, remove the coupling guard and coupling.

7. Remove the casing foot and frame and C-face motor-support foot bolts.

8. Remove the pump from the baseplate.

9. For the frame-mounted pump, drain the oil.

10. Decontaminate the pump:
a) Connect a clean-flush liquid supply to the discharge nozzle.

3298 Family Installation, Operation, and Maintenance Manual 55

Maintenance

b) Collect the flushed liquid as it drains out of the drain connection.
c) Flush the pump in order to remove residue.

Disassemble the close-coupled pump

1. For all pumps except the V group, secure the C-face motor support and bearing frame
(228) to the workbench.

2. Remove the four bolts (370B) from the C-face motor support and bearing frame (228).

Figure 13: XS group

Figure 14: S group

Figure 15: M group

Figure 17: SP group

56 3298 Family Installation, Operation, and Maintenance Manual

Figure 16: L group

Figure 18: V group

Maintenance

3. For the M and L group pumps, tighten the jacking screws (418) until the gap between the
clamp ring (141C) and the C-face motor support and bearing frame is 3.50 in. (8.89 cm).

4. For all pumps except the V group, grasp the suction flange of the casing and pull the
casing-liquid end free from the magnet assembly.

5. For all pumps except the SP group, remove the casing bolts (356A).

6. Wrap a piece of emery cloth around the containment shell (750) and secure it with a large
hose clamp.

Figure 19: SP group

Figure 21: XS, X, S, M, and L groups

7. Disassemble the containment shell:
a) Screw the C-face motor support and bearing frame bolts (370B) into the tapped holes

of the clamp ring (141C) and tighten evenly in order to remove the containment shell.
b) Remove the O-ring (412M) from the containment shell (750) and discard it.
c) Remove the hose clamp and emery cloth.

Figure 20: V group

3298 Family Installation, Operation, and Maintenance Manual 57

Maintenance

8. For all groups except the SP, remove the impeller assembly (101).

Figure 22: XS, S, M, and L groups

Figure 23: V group

9. Remove the shaft (122A) if replacement is necessary.

10. Inspect and replace the bearings, if necessary:
a) Inspect the bearing spider (101A).

Press it out through the suction of the casing (100) if replacement is necessary.

b) Use a bearing tool to press out the radial bearing (197B) from the impeller assembly

(101), if replacement is necessary.

Figure 25: S, M, L, SP, and V groups

Figure 24: XS group

58 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

11. Inspect and replace these parts as necessary:

Pump group Step

M and L Inspect the rear impeller wear ring (203) and remove it if replacement is

L Remove the retaining ring (361H). Then slide or press the magnet

S, M, and SP, and V Remove the reverse thrust bearing (197C) from the containment shell

necessary.

assembly (740A) off the impeller assembly (101).

Figure 26: L group

(750) if replacement is necessary.

12. When replacement of the close-coupled drive magnet assembly (740B) is required, remove
and discard the nylok setscrews (222L).
Use a puller and the 2 - 3/8-inch tapped holes provided in order to remove the magnet
assembly from the motor shaft.

Disassemble the frame-mounted pump

1. Place a shaft wrench on the drive shaft (122B) and remove the hex nut (355A).

Figure 27: S, L, M, and SP groups

2. Place three capscrews in the jacking screw holes in the magnet assembly (740B).

Group Capscrew size

S and SP 5/16 in. by 2 in.
M and L 5/8 in. by 4 in.

3298 Family Installation, Operation, and Maintenance Manual 59

Maintenance

.

Figure 28: Magnet assembly

3. Tighten the jacking screws evenly and in sequence until you can remove the magnet
assembly (740B).

4. Remove the magnet assembly (740B) and place it away from any attracting metals.

Figure 29: Magnet assembly removal

5. For the L and M group pumps, remove the 5/16 in. wear ring capscrew (372Y) and the wear
ring from the bottom of the bearing frame (228).

Figure 30: L and M group wear ring removal

60 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

6. Remove the bearing end-cover bolts (370C).

Figure 31: Bearing end-cover bolt removal

7. Install two bearing end-cover bolts (370C) in the jacking screw holes and tighten them
evenly in order to remove the bearing end cover (109A).

8. Slide the bearing end cover (109A) backwards.
The labyrinth oil seal (332A) slides back with the end cover.

9. Remove the labyrinth seal (332A) and the bearing end cover (109A).

10. Remove and discard the gasket (360A).

11. Remove the drive shaft (122B) with ball bearings (112) from the bearing frame (228).

Figure 32: S, M, and SP groups

Figure 33: L group

12. Press the bearings (112) off the shaft and inspect them.

3298 Family Installation, Operation, and Maintenance Manual 61

Maintenance

13. Remove the lip seal (333D).

Figure 34: Lip seal removal

Preassembly inspections

Casing

Spider bearing

Impeller

Back wear ring

Inspect pump parts according to the following criteria before reassembly in order to make sure
the pump will run properly. Replace any part that does not meet the required criteria.

Inspect the casing for excessive wear, abrasive damage, cuts, or a loose liner.

Inspect the spider bearing for cracks, chips, or scoring.

• Inspect the leading and trailing edges of the vanes for erosion damage.

• Inspect the impeller for cracks and grooves in excess of 0.03 in. (0.75 mm).

• Check the impeller for blocked passages.

Inspect the back wear ring according to the clearances in the Back wear ring clearances table.

Table 7: Back wear ring clearances

Size New clearance inches Replace at inches (millimeters)

(millimeters)

1 x 1½-5 No wear ring No wear ring
1½ x 2-6
1 x 1½-6
1 x 1½-7
1 x 1½-8
2 x 3-6
1½ x 3-8
1 x 1½-8

3 x 4-7 0.060 - 0.066 (1.52 - 1.68) 0.090 (2.3)
2 x 3-8
1 x 2-10

62 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

Size New clearance inches Replace at inches (millimeters)

1½ x 3-10 0.060 - 0.070 (1.52 - 1.78) 0.094 (2.4)
2 x 3-10
3 x 4-10H
3 x 4-10G
4 x 6-10

Radial bearing

• Inspect the bearings for cracks or chips.

• Inspect the diametric bearing clearances:

Shaft to bearing 0.003 - 0.006 (0.076 - 0.152) 0.012 (0.305)

Reverse and impeller thrust bearings

Inspect these bearings for cracks, chips, or scoring. If the minimum groove height is less than
the minimum height recommended, then replace.

(millimeters)

New clearance in inches Replace at inches
(millimeters) (millimeters)

Figure 35: 0.020 in. (0.051 cm) minimum groove height

Stationary shaft

Make sure the stationary shaft is free from cracks and scoring.

Containment shell

• The containment shell must be free from scratches or cracks.

• Replace the containment shell when grooves are in excess of 0.01 in. (0.25 mm) for the
outside diameter and 0.030 in. (0.75 mm) for the inside diameter.

• Make sure that the shaft fits snugly in the containment shell.

Magnet assembly

WARNING:

The magnets in this unit are extremely powerful. Beware of serious injury to fingers and hands. Keep
magnetic drive components and magnetic tools apart by a minimum of 3 ft (1 m).

The magnets are extremely brittle. It is normal to have chips (up to 10% of the magnet surface)
per MMPA standard no. 0100-90.

• Make sure that magnets are free of major cracks that extend over 50% of the surface and
are free of imperfections that create loose particles.

3298 Family Installation, Operation, and Maintenance Manual 63

Maintenance

• Replace the magnet assembly if it was exposed to pumped fluid.

• Inspect magnets for proper bonding to the carrier.

Bearing frame - frame-mounted version only

• Inspect the frame and frame foot for cracks.

• Inspect the frame and rub ring for corrosion or pitting if parts have been exposed to
pumped fluid.

• Inspect the bearing frame bores. The maximum acceptable bore is:

• S group: 2.4419 in. (62.024 mm)

• M and L groups: 2.8353 in. (72.017 mm)

• Inspect the ball bearings for contamination and damage.

• Inspect the bearing end cover for cracks and pits.

• Make sure that the gasket surface is clean.

• Replace the lip seal.

• Inspect the shaft for cracks and scoring.

Inspection locations

Reassembly

Reassembly precautions

WARNING:

Explosion risk. Rubbing could lead to excess heat generation and sparks. Rotate the shaft by hand to
make sure it rotates smoothly and that there is no rubbing.

CAUTION:

• The magnets in this unit are extremely powerful. Beware of serious injury to fingers and hands.
Keep magnetic drive components and magnetic tools apart by a minimum of 3 ft (1 m).

• Use a non-magnetic socket and wrench.

64 3298 Family Installation, Operation, and Maintenance Manual

NOTICE:

• Use caution when you use an hydraulic press because you cannot feel when the bearing
hits the bottom of the bore.

• Do not hammer the magnet assembly onto the shaft. This will damage the ball bearings.

• Pressing the radial bearings into the impeller can cause some ETFE to peel. If this occurs,
press out the bearings, remove any ETFE filings, and then press the bearings back into
the impeller.

• There are several methods you can use to install bearings. The recommended method is
to use an induction heater that heats and demagnetizes the bearings.

• You may need to lightly press the shaft with bearings into the bearing frame. It is important
that you press the bearings in by putting a sleeve on the inner race of the outboard ball
bearing.

• Make sure that the shaft O-ring, grooves, shaft keyways, and keyway in the frame are free
of burrs.

Since the bolt pattern for the bearing end cover (109A) is not symmetric, the bearing end cover
gasket (360A) and bearing end cover (109A) can only go on one way. This ensures that the oil
return slot will always be down.

Reassemble the rotary assembly

1. For the L group, complete these steps:
a) Install the O-ring (496G) into the driven magnet assembly (740A).

b) Lubricate the O-ring (496G) with Parker O-ring lube or an equivalent lube.
c) Press the driven magnet assembly (740A) onto the impeller assembly (101).
d) Install the retaining ring (361H) into the groove of the impeller assembly (101).

Maintenance

Figure 36: 3298 L group impeller

2. For all groups except XS, install the key:
a) Slide key (178S) into impeller (101).

3298 Family Installation, Operation, and Maintenance Manual 65

Maintenance

b) Use a center punch to stake the impeller at the end of the key in order to hold the key in

place.

Figure 37: 3298 S, M, and L groups, SP3298, and V3298

3. Install the radial bearing into the impeller:
a) Lubricate the outside of the radial bearing.

b) Use the bearing installation tool to press the radial bearing (197B) into the impeller.
c) Support the impeller with the bearing press support tool.
d) Line up the keyway in the bearing with the key in the impeller.

Figure 38: XS group

66 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

4. For all groups except XS, slide the bearing spacer (157A) into the impeller and then press
the second radial bearing (197B) into the impeller.

Figure 39: 3298 S and M groups, SP3298, and V3298

5. For the L group, press the impeller wear ring (203) into the impeller assembly.

6. Turn the impeller over and install the impeller thrust bearing (197D).
Make sure to align the two slots in the impeller thrust bearing with the two tabs in the
impeller.

Figure 41: 3298, SP3298, and V3298

7. For all groups except XS, slide the reverse thrust bearing onto the shaft.

8. Press the shaft (122A) into the containment shell (750).

9. Coat the O-ring (412M) with an O-ring lubricant and insert it in the containment shell (750).

Figure 40: L group

Figure 42: 3298, and V3298 M and L groups

3298 Family Installation, Operation, and Maintenance Manual 67

Maintenance

Figure 43: XS group

The lubricant is used to help the O-ring remain in place.

Figure 44: 3298, SP3298, and V3298 S, M, and L groups

10. For the SP3298, complete these steps:
a) Place the backplate (444) face down on the work surface.

b) Place the containment shell with the reverse thrust bearing in the backplate.
c) Place a clamp ring (141C) over the containment shell and secure with clamp ring bolts

(356A).

d) Coat the O-ring (412V) with an O-ring lubricant. Insert the O-ring in the backplate.

The lubricant helps the O-ring remain in place.

Figure 45: SP3298

68 3298 Family Installation, Operation, and Maintenance Manual

11. Slide the impeller assembly (101) onto the shaft.

Figure 46: 3298 XS, S, M, and L groups, and V3298

12. Press the spider (101A) into the volute insert (100U) with the spider tool. Then press the
volute insert with the spider into the casing (100).

Maintenance

Figure 47: SP group

Figure 48: 3298

Figure 49: V3298

3298 Family Installation, Operation, and Maintenance Manual 69

Maintenance

Figure 50: SP3298

13. Check the total travel of the rotary assembly:

Pump group Travel between A and B in inches (millimeters)

3298 XS 0.026 - 0.083 in. (0.66 - 2.11 mm)
3298 S, V3298 S, and SP3298 0.013 - 0.100 in. (0.33 - 2.5 mm)
3298 M and L, and V3298 M 0.020 - 0.105 in. (0.51 - 2.67 mm

Figure 52: 3298 S, M, and L groups

Figure 51: 3298 XS group

70 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

Figure 53: SP3298

14. For the 3298 and V3298, install these items into the casing:
a) Install the containment shell and impeller assembly into the casing (100). Use care that

the O-ring (412M) remains in place.

b) Install the clamp ring (141C) into the casing (100) with the hex capscrews (356A).

Figure 55: 3298 XS, S, M, and L groups

Figure 54: V3298

Figure 56: V3298

3298 Family Installation, Operation, and Maintenance Manual 71

Maintenance

15. Install the impeller assembly and backplate/clamp ring/containment shell assembly into the
casing (100) using casing bolts (372V). Make sure that the O-ring remains in place.

Figure 57: SP3298

16. Set the partially-built assembly aside and away from any attracting metals.

Continue the assembly with the close coupled or frame mounted version of assembly as
described in this chapter.

Reassemble the close-coupled pump

1. Install four expansion plugs (408Z) into the C-face motor support (228) by tapping on the
plug with a 5/8 in. rod.
Expansion plugs are not used for the 182TC - 256TC and 324TSC motor frames.

Figure 58: Close coupled frame

2. Set the C-face motor support (228) on the motor and install four screws (371).

3. Slide the key (178Y) into the motor shaft keyway.

4. Install two setscrews (222L) into the magnet assembly (740B).

Figure 59: Drive magnet

72 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

5. Slowly drop in the magnet assembly until the shim rests on the face of the C-face motor
support.

Figure 60: Drive magnet assembly

Figure 61: XS and S group installation dimensions

6. Rotate the magnet assembly (740B) to line up the key (178Y) with the access hole on the
C-face motor support (228).

7. Tighten the first setscrew (222L) through the access hole.

8. Remove the shim and rotate the magnet assembly 90° in order to access the other
setscrew.

9. Tighten the setscrew.

Reassemble the frame-mounted pump

1. Install the ball bearings (112) on the shaft (122B) at both ends.

2. Install the lipseal (333D) in the bearing frame (228).

Figure 62: M and L group installation dimensions

Figure 63: Bearing frame

3298 Family Installation, Operation, and Maintenance Manual 73

Maintenance

3. Bolt or clamp the bearing frame (228) to the work bench.

Figure 64: Bearing frame secured to bench

4. Install the shaft (122B) with ball bearings (112) into the bearing frame (228).
Point the threaded end of the shaft towards the magnets.

Figure 65: S group bearing installation

5. For the M and L group, install the wave washer.

Figure 66: M and L group bearing installation

74 3298 Family Installation, Operation, and Maintenance Manual

Maintenance

6. Install the bearing-end cover gasket (360A) and bearing end cover (109A) with hex
capscrews (370C).

Figure 67: Bearing frame assembly

7. Press the labyrinth seal (332A) into the end cover (109A):
a) Make sure that the O-rings are in grooves of labyrinth seal.

b) Orient the expulsion ports to the 6 o’clock position and press the seal into the bearing

end cover (109A) until it is shouldered against the end cover.
No adjustment is necessary.

8. Install the key (178Y) on the shaft (122B).

Figure 68: Drive magnet assembly

9. Install the magnet assembly (740B) onto the shaft (122B).

10. Place a shaft wrench on the drive shaft (122B). Install a hex nut (355A) and tighten the nut
per the Bolt torque values table in the Reassembly section of the Maintenance chapter.

11. For the M and L groups, complete these steps:
a) Install the rub ring (144A) into the bearing frame (228).

b) Line up the hole in the rub ring with the tapped hole in the frame (228) by using the

scribed mark on the rub ring to reference the tapped hole in the frame.

c) Lightly tap the rub ring (144A) with a rubber mallet until it shoulders into the bearing

frame (228).

3298 Family Installation, Operation, and Maintenance Manual 75

Maintenance

d) For the M and L groups, install a 5 /16 in. hex capscrew (372Y) into the bottom of the

frame (228).
This capscrew prevents the rub ring (144A) from rotating during pump operation.

Figure 69: M and L group drive magnet assembly

Complete the reassembly (close-coupled and frame-mounted pumps)

1. For all groups except XS, install the gasket (360W) into the clamp ring (141C).

2. Bolt the C-face support and frame (228) to the work bench.

3. For the M and L groups, install guide rods:
a) Tighten the jacking screws (418) until they are fully extended through the C-face

support and frame flange (228).
Check that extension from the frame is approximately 3.50 in. (8.89 cm).

Figure 70: Bearing frame with guide rods

76 3298 Family Installation, Operation, and Maintenance Manual

b) Install the two guide rods (B03189A) into the clamp ring (141C).

These rods help you guide the casing assembly into the C-face support and frame
(228), which contains the drive magnets (740B).

1. Casing assembly

2. Guide rods

Figure 71: Casing assembly with guide rods

4. Slide the casing assembly into the C-face support and bearing frame assembly:

If your pump group is... Then...

XS or S

M or L

1. Hold the casing firmly by the suction flange and suction side of the
discharge flange.
Keep hands away from the clamp ring in order to avoid pinched
fingers.

2. Slowly insert the casing in order to avoid damage.

1. Position the casing assembly so that the two guide rods are
engaged into two of the C-face support and frame capscrew holes
and the jacking screws (418) contact the casing assembly clamp
ring (141C).

2. Loosen the jacking screws (418) and slowly draw the casing
assembly into the C-face support and bearing frame assembly.
Keep hands away from clamp ring to avoid pinched fingers.

Maintenance

1. Casing assembly

2. Guide rods

5. Secure with four hex capscrews (370B) and tighten.

Assembly references

Bolt torque values

Location Dry threads torque in ft-lbs (Nm)

Hex nut – 355A 30 (40)
Clamp ring screws – 356A 30 (40)
Support / frame screws – 370B 30 (40)

3298 Family Installation, Operation, and Maintenance Manual 77

Maintenance

Location Dry threads torque in ft-lbs (Nm)

Cover-to-frame – 370C 30 (40)
Drain screws – 426A XS and S 14 (19)
Drain screws – 426A M and L 18 (25)

Impeller trimming guidelines

Precautions

• Do not chuck the impeller assembly.

• Do not make cuts that are larger than 0.050 in. (0.127 cm)

• Do not over-tighten the arbor screw because this can crack the carbon bearings.

Required tools

Group Sizes Arbor tool

XS 1 x 11/2-5 A06785A01
S 1 x 11/2-6 A06785A02

M and L 2 x 3-8 A06785A03

1 x 11/2-8
2 x 3-6

3 x 4-7
1 x 2-10
3 x 4-10
4 x 6-10

You can use nylon impeller arbor sleeves in place of bearings:

• XS group–B04674A01

• S group–B04676A02

• M group–B04676A03

• L group–B04676A04

1. Small radius 0.005 to 0.002

2. 45° rake angle

Figure 72: Recommended cutting tool

Tool features:

• 200 to 300 RPM

• 300 to 500 ft./min

• High-speed steel tool

• Light hand feed

Trimming guidelines

• Make sure that the arbor runs within 0.002 TIR.

78 3298 Family Installation, Operation, and Maintenance Manual

Trimming examples

Maintenance

• Tighten the screw only enough to turn the impeller without it slipping.

• The allowed front shroud TIR is 0.060 in. (0.152 cm)

• For the XS impeller, trim both the front and back shrouds and the vanes to a minimum
diameter of 3.75 in. (9.53 cm).

• When you trim between 3.00 in. (7.62 cm) and 3.75 in. (9.53 cm), trim only the front shroud
and the vanes.

1. Impeller

2. Steel washer with rubber bond

3. Paper gasket

4. Arbor

Figure 73: XS group

1. Steel washer with rubber bond

2. Socket head capscrew

3. Impeller

4. Paper gasket

5. Arbor

Figure 74: S and M groups

3298 Family Installation, Operation, and Maintenance Manual 79

Maintenance

1. Steel washer with rubber bond

2. Socket head capscrew

3. Impeller

4. Paper gasket

5. Arbor

Figure 75: L group

SP3298 volute insert trimming guidelines

Trimming guidelines

Do not make cuts larger than 0.050 in (0.127 cm)
Use arbor tool C06820A for SP3298 size 1x1.5-6 and C06821A for SP3298 size 2x3-6.
Make sure that the arbor runs within 0.002 in. (0.005 cm) TIR.

1. Volute insert

2. Arbor

Cutwater trimming guidelines

Machine the cutwater to full depth using radius dimension "R" as shown in the Cutwater radius
table.

Use arbor tool C06820A for SP3298 size 1x1.5-6 and tool C06821A for SP3298 size 2x3-6.

Table 8: Cutwater radius

Impeller diameter in inches (centimeters) "R" +/- 0.010 inches (0.25 mm)

5.00 (12.70) 2.563 (6.510)

5.12 (13.00) 2.625 (6.668)

80 3298 Family Installation, Operation, and Maintenance Manual

Impeller diameter in inches (centimeters) "R" +/- 0.010 inches (0.25 mm)

5.25 (13.34) 2.688 (6.827)

5.38 (13.67) 2.750 (6.985)

5.50 (13.97) 2.813 (7.145)

5.62 (14.27) 2.875 (7.303)

5.75 (14.61) 2.938 (7.463)

5.88 (14.94) 3.000 (7.620)

6.00 (15.24) 3.063 (7.780)

6.06 (15.39) 3.094 (7.859)

Maintenance

1. Steel washer with rubber bond

2. Hex flange nut

3. Volute insert

4. Paper gasket

5. Arbor

Spare parts

Liquid end

Part Part number Material Quantity

Containment shell O-ring 412M Standard – viton 1

Optional – EDPM
Optional – Teflon-encapsulat-

ed viton
Gasket – clamp ring 360W Aramid fiber / EDPM binder 1
Bearing spider 101A Tefzel / silicon carbide 1

3298 Family Installation, Operation, and Maintenance Manual 81

Maintenance

Part Part number Material Quantity

Impeller bearing 178S Tefzel 1
Radial bearing 197B Standard – carbon 2

Optional – silicon carbide

Optional – DryGuard silicon

carbide
Reverse thrust bearing 197C Carbon-filled Teflon 1
Impeller thrust bearing 197D Standard – carbon filled Teflon 1

Optional – silicon carbide

Optional – DryGuard silicon

carbide
Rear impeller wear ring (M and 203 Standard – carbon filled Teflon 1

L groups)

Power end – frame-mounted

Part Part number Material Quantity

End cover gasket 360A Varnished Kraft 1
Labyrinth seal 332A Carbon filled Teflon 1
Ball bearing 112 Steel 2
Lip seal 333D Buna rubber 1
Hex flange nut 355A Steel 1
L group impeller O-ring 496G Standard – viton 1

Optional – EDPM

Optional – Teflon encapsulated

viton

Repair kits

Size Repair cartridge

1

Carbon Silicon carbide Dry-guard

TM

Power end kit

2

XS
1 x 1.5-5 C298X1500CV000 C298X1500SV000 C298X1500FV000 N/A

1.5 x 2-6 C298X1560CV000 C298X1560SV000 C298X1560FV000 N/A
S
1 x 1.5-6 C298S1600CV000 C298S1600SV000 C298S1600FV000 R298PKS
1 x 1.5-8 C298S1800CV000 C298S1800SV000 C298S1800FV000 R298PKS

1.5 x 3-7 C298S1570CV000 C298S1570SV000 C298S1570FV000 R298PKS
2 x 3-6 C298M2800CV000 C298M2800SV000 C298M2800FV000 R298PKS
M

1.5 x 3-8 C298M1580CV000 C298M1580SV000 C298M1580FV000 R298PKML
1 x 2-10 C298M1100CV000 C298M1100SV000 C298M1100FV000 R298PKML
2 x 3-8 C298M2800CV000 C298M2800SV000 C298M2800FV000 R298PKML
3 x 4-7 C298M3700CV000 C298M3700SV000 C298M3700FV000 R298PKML
L

1.5 x 3-10 C298L1510CV000 C298L1510SV000 C298L1510FV000 R298PKML
2 x 3-10 C298L2100CV000 C298L2100SV000 C298L2100FV000 R298PKML
3 x 4-10H C298L3100CV000 C298L3100SV000 C298L3100FV000 R298PKML
3 x 4-10G C298L310GCV000 C298L310GSV000 C298L310GFV000 R298PKML
4 x 6-10 C298L4100CV000 C298L4100SV000 C298L4100FV000 R298PKML

1

The repair cartridge is a fully-assembled kit with a trimmed impeller and includes the spider, thrust
bearing, bearing spacer, bearing key, radial bearings, rear impeller wear ring (if required), shaft, reverse
thrust bearing, and the containment shell. L groups also include a magnet retaining ring and a support o­ring.

2

The power-end repair kits include the ball bearings, drive carrier key, lip seal, hex flange nut, bearing­end cover gasket, frame gasket, and the labyrinth O-rings.

82 3298 Family Installation, Operation, and Maintenance Manual

Troubleshooting

Troubleshooting

Operation troubleshooting

Symptom Cause Remedy

The pump is not delivering liquid. The pump is not primed. For the 3298 and V3298, reprime the

The suction line is clogged. Check the suction line pressure. If it is

The impeller is clogged. Disassemble the impeller and remove the

The magnet is de-coupling. Shut down the pump and check the tem-

The suction line is clogged. Check the suction line pressure. If it is

The impeller is clogged. Disassemble the impeller and remove the

The magnet is de-coupling. Shut down the pump and check the tem-

The pump is not producing rated flow or There is an air leak in the suction line. Check for leaks and repair the lines.
head.

Pump starts and then stops pumping. The pump is not primed correctly. Reprime the pump.

The bearings run hot. The bearings are not lubricated properly. Check the suitability and level of the

Pump is noisy or vibrates. The pump or driver is not aligned proper- Align the shafts.

low, locate and remove any obstructions.

blockage.

perature and viscosity of the pumped
fluid. Check the magnets with a break­away torque test.

The impeller is partly clogged. Back flush the pump to clean the impeller.
The impeller rings are worn. Replace the defective ring as required.
There is insufficient suction head. Make sure that the suction line shutoff

The impeller is either worn or broken. Inspect and replace the impeller if neces-

The rotation is wrong. Correct the wiring.

There is an air leak in the suction line. Check for leaks and correct.
The magnet is de-coupling. Shut down the pump. Check the tempera-

There are either air or vapor pockets in Rearrange the piping to eliminate air
the suction line. pockets.

The lubricant is cooling. Check the cooling system.
The pump is not aligned properly. Check the pump alignment.

ly.
There is a partially-clogged impeller caus- Disassemble the impeller and remove the

ing the imbalance. blockage.
There is a broken or bent impeller or Replace as required.

shaft.
The base is not rigid enough. Tighten the pump and motor hold-down

The suction or discharge piping is not Anchor the piping per the Hydraulic Insti­anchored or properly supported. tute Standards recommendations (Edition

The pump is cavitating. Increase the NPSH available.

pump and check that the pump and suc­tion line are full of liquid.

For the SP3298:

• Add an initial charge to the casing.

• Since the suction lift is greater than
the maximum allowed, raise the
sump level.

low, locate and remove any obstructions.

blockage.

perature and viscosity of the pumped
fluid.

valve is fully open and the line is unob­structed. Check the suction pressure.

sary.

ture and viscosity of the pumped fluid.

lubricant.

bolts or adjust the stilts. Then check the
grout.

14, centrifugal pump section).

3298 Family Installation, Operation, and Maintenance Manual 83

Troubleshooting

Symptom Cause Remedy

The motor requires excessive power. The head is lower than the rating and the Install a throttle valve.

The condition monitoring device shuts The sleeve and thrust bearings are dam- Replace as required.
down the pump. aged.

There is a significant increase in heat There is either insufficient lubrication or
generation. you ran the liquid lubricated bearing sur-

pump has too much liquid.
The liquid is heavier than expected. Check the specific gravity and viscosity.
The head is higher than the rating, which Check the impeller diameter.

is at capacity.
The rotating parts are binding or are Check the internal wearing parts for prop-

severely worn. er clearances.
The motor rotation is incorrect. Correct the wiring.

There is a plugged recirculation circuit. Disassemble and remove the blockage.

There is recirculation liquid vaporization. Correct all of these as necessary:

The containment shell is damaged. Replace as required.
The magnets are de-coupling. Check the temperature and viscosity of

The pump is running dry.

There is excessive motor power. The system head is lower than the rating

faces dry. The lack of cooling flow through
the pump also causes significant in­creases in bearing temperature. This tem­perature increase causes damage to the
surrounding parts. See the Increase in
heat generation figure for details.

Then determine and correct the cause of
the blockage.

• Check the actual liquid temperature
versus the design temperature.

• Check the actual NPSH available
versus the design.

• Check the minimum flow require­ment for the pump size.

the pumped fluid.

• Check the control device for proper
operation.

• Check the suction line for blockage.

• Reprime the pump.

and pumps too much liquid.
Check the rotating parts for binding and

wear. The liquid is heavier than expected.

• Install a dry run protection device like
a power monitor.

• Modify the process system or con­trols in order to eliminate the dry run
operation.

• Change the bearing material to
DryGuard™ coated silicon carbide if
silicon carbide bearings were initially
installed in the pump.

84 3298 Family Installation, Operation, and Maintenance Manual

Troubleshooting

1. Check to see if the plastic that surrounds the outboard thrust bearing is melted.

2. Check to see if the plastic that surrounds the carbon or silicon carbide impeller radial
bearings is melted.

3. Check to see if the plastic that surrounds the inboard thrust bearings is melted.

4. If the impeller seizes on the shaft due to excessive heat, the shaft can spin in the shaft
spider, which wears the inside diameter of the shaft spider.

Figure 76: Increase in heat generation

Alignment troubleshooting

Symptom Cause Remedy

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.

Vertical (top-to-bottom) alignment cannot The baseplate is not leveled properly and
be obtained (angular or parallel). is probably bowed.

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.

1. Determine if the center of the base­plate should be raised or lowered.

2. Level screws equally at the center of
the baseplate.

3. Realign the pump and driver.

3298 Family Installation, Operation, and Maintenance Manual 85

Parts Listings and Cross-Sectionals

Parts Listings and Cross-Sectionals

3298 XS group close-coupled pump in sizes 1 x 1-1/2 - 5 and 1-1/2 x 2-6

With NEMA motor

86 3298 Family Installation, Operation, and Maintenance Manual

With IEC motor

Parts Listings and Cross-Sectionals

Parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-filled Tefzel

1

101A

122A Stationary shaft Standard: silicon carbide

141C Clamp ring Ductile iron
178Y Key – motor to magnet assembly Steel

1

197B

1

197D

222L Setscrew Steel
228 C-face motor support Cast iron

2

241
351G Gasket – casing drain Gylon
356A Hex capscrew – clamp ring to casing 304 SS
358 Cover – drain Steel
370B Hex capscrew – support to clamp ring 304 SS

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide
Optional: Dry-guard silicon carbide

Optional: Dry-guard silicon carbide

Bearing – radial Standard: carbon graphite

Optional: silicon carbide
Optional: Dry-guard silicon carbide

Bearing – impeller thrust Standard: carbon/glass-filled Teflon

Optional: silicon carbide
Optional: Dry-guard silicon carbide

Frame foot Ductile iron

3298 Family Installation, Operation, and Maintenance Manual 87

Parts Listings and Cross-Sectionals

Item Part name Material

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM
Optional: Teflon – encapsulated Viton
Optional: Chemraz 505

Optional: Kalrez 4079
426A Hex capscrew – drain cover 304 SS
492A Plug – access hole Steel
740B Drive carrier Carbon-filled Tefzel / fiber-reinforced viny-

lester
750 Containment shell Carbon-filled Tefzel / Fiber-reinforced Vin-

1

Recommended spare parts

2

Not supplied on size 1.5 x 2-6 with the 213/215TC motor frame.

ylester

3298 S group frame-mounted pump in sizes 1 x 1-1/2 - 6, 1 x 1-1/2 ­8, 1-1/2 x 3-7, and 2 x 3-6

S group frame-mounted drawing

S group frame-mounted parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-filled Tefzel

1

101A

109A End cover Ductile iron

1

112

88 3298 Family Installation, Operation, and Maintenance Manual

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide

Optional: carbon-filled Tefzel / Dry-guard

silicon carbide

Ball bearings Steel

Parts Listings and Cross-Sectionals

Item Part name Material

122A Stationary shaft Standard: silicon carbide

Optional: Dry-guard silicon carbide
122B Drive shaft Steel
141C Clamp ring Ductile iron
157A Bearing spacer – radial bearings Teflon

1

178S
178Y Key – drive carrier Steel

1

197B

1

197C

1

197D

Key – impeller to radial bearings Teflon

Bearing – radial Standard: silicon carbide

Optional: Dry-guard silicon carbide

Bearing – reverse thrust Carbon-filled Teflon
Bearing – impeller thrust Standard: carbon-filled Teflon

Optional: silicon carbide

Optional: Dry-guard silicon carbide
228 Frame – bearing Cast iron

1

332A
333D
351G
355A

1

1

1

Labyrinth seal – outboard Brass
Oil lip seal – inboard Buna rubber
Gasket – casing drain Gylon

Hex nut Steel
356A Hex capscrew – clamp ring to casing 304 SS
358 Flange – casing drain Steel

1

360A

Gasket – end cover to frame Varnished Kraft
360W Gasket – frame to clamp ring Aramid fibers with EPDM
370B Hex capscrew – frame to clamp ring 304 SS
370C Hex capscrew – end cover 304 SS

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM
Optional: Teflon-encapsulated Viton
Optional: Chemraz 505

Optional: Kalrez 4079
426A Hex capscrew – casing drain 304 SS
740B Drive magnet assembly Cast iron / neodymium iron
750 Containment shell Tefzel / fiber-reinforced vinylester

1

Recommended spare parts

3298 Family Installation, Operation, and Maintenance Manual 89

Parts Listings and Cross-Sectionals

3298 S group close-coupled pump in sizes 1 x 1-1/2 - 6, 1 x 1-1/2 - 8, 1-1/2 x 3-7, and 2 x 3-6

With NEMA motor

90 3298 Family Installation, Operation, and Maintenance Manual

With IEC motor

Parts Listings and Cross-Sectionals

S group close-coupled parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-filled Tefzel

1

101A

122A Stationary shaft Standard: silicon carbide

141C Clamp ring Ductile iron
157A Bearing spacer – radial bearings Teflon

1

178S
178Y Key – motor to carrier Steel

1

197B

1

197C

1

197D

222L Setscrew Steel
228 Motor support – close coupled Cast iron

1

351G
356A Hex capscrew – clamp ring to casing 304 SS
358 Flange – casing drain Steel

1

360W
370B Hex capscrew – motor support to clamp 304 SS

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide

Optional: carbon-filled Tefzel / Dry-guard

silicon carbide

Optional: Dry-guard silicon carbide

Key – impeller to radial bearings Teflon

Bearing – radial Standard: carbon graphite

Optional: silicon carbide

Optional: Dry-guard silicon carbide

Bearing – reverse thrust Carbon-filled Teflon
Bearing – impeller thrust Standard: carbon-filled Teflon

Optional: silicon carbide

Optional: Dry-guard silicon carbide

Gasket – casing drain Gylon

Gasket – motor support to clamp ring Aramid fibers with EPDM

ring

3298 Family Installation, Operation, and Maintenance Manual 91

Parts Listings and Cross-Sectionals

Item Part name Material

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM

Optional: Teflon-encapsulated Viton

Optional: Chemraz 505

Optional: Kalrez 4079
426A Hex capscrew – casing drain 304 SS
492A Access hole plug Steel
740B Drive magnet assembly Cast iron / neodymium iron
750 Containment shell Tefzel / fiber-reinforced vinylester

1

Recommended spare parts

Item Part name Material

228 Frame, close coupled (IEC) Ductile iron
333L Setscrew 304 SS
371 Hex capscrew – motor to frame Carbon steel
388T Hex capscrew – adapter to frame

1

Carbon steel
408A Plug – drain Carbon steel
492A Plug – access hole Carbon steel
503 Ring – adapter
742B Ring – centering

1

Used with motor frame 132 and 160 only.

2

Used with motor frames 80 and 90 only.

1

2

Cast iron

Carbon steel

92 3298 Family Installation, Operation, and Maintenance Manual

Parts Listings and Cross-Sectionals

3298 M group frame-mounted pump in sizes 3 x 4 - 7, 1-1/2 x 3 - 8, 2 x 3 - 8, 1 x 2 - 10

M group frame-mounted drawing

M group frame-mounted parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-filled Tefzel

1

101A

109A End cover Ductile iron

1

112
113A Plug, oil fill Steel
122A Stationary shaft Standard: silicon carbide

122B Drive shaft Steel
141C Clamp ring Ductile iron
144A Rub ring Cast iron
157A Bearing spacer – radial Teflon

1

178S
178Y Key – drive carrier Steel

3298 Family Installation, Operation, and Maintenance Manual 93

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide

Optional: carbon-filled Tefzel / Dry-guard

silicon carbide

Ball bearings Steel

Optional: Dry-guard silicon carbide

Key – impeller to bearings Teflon

Parts Listings and Cross-Sectionals

Item Part name Material

1

197B

Bearing – radial Standard: carbon graphite

Optional: silicon carbide

Optional: Dry-guard silicon carbide
197C
197D

1

1

Bearing – reverse thrust Carbon-filled Teflon
Bearing – impeller thrust Standard: carbon-filled Teflon

Optional: silicon carbide

Optional: Dry-guard silicon carbide
203

1

Wear ring – rear impeller Carbon-filled Teflon
228 Frame – bearing Cast iron
241 Frame foot Cast iron
319 Sight window Steel / glass
332A Labyrinth seal Carbon-filled Teflon

1

333D
351G

1

Lip seal Buna rubber

Gasket – casing drain Gylon
355A Flanged hex nut Steel
356A Hex capscrew – clamp ring to casing 304 SS
358 Flange – casing drain Steel

1

360A
360W

1

Gasket – end cover to frame Varnished Kraft

Gasket – frame to clamp ring Aramid fibers with EPDM
370B Hex capscrew – frame to clamp ring 304 SS
370C Hex capscrew – end cover to frame 304 SS
370F Hex capscrew – frame foot 304 SS
372Y Hex capscrew – frame to rub ring 304 SS
408A Plug – drain Steel
408J Plug – oiler Steel

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM
Optional: Teflon
Optional: Chemraz 505

Optional: Kalrez 4079
418 Hex tap bolt – jacking 304 SS
426A Hex capscrew – casing drain 304 SS

1

529

Washer – wave spring Steel
740B Drive carrier Cast iron / neodymium iron
750 Containment shell Tefzel / fiber-reinforced vinylester

1

Recommended spare parts

94 3298 Family Installation, Operation, and Maintenance Manual

Parts Listings and Cross-Sectionals

3298 M group close-coupled pump in sizes 3 x 4 - 7, 1-1/2 x 3 - 8, 2 x 3 - 8, 1 x 2 - 10

M group close-coupled drawing

M group close-coupled parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-filled Tefzel

1

101A

122A Stationary shaft Standard: silicon carbide

141C Clamp ring Ductile iron
157A Bearing spacer – radial Teflon

1

178S
178Y Key – motor to carrier Steel

1

197B

1

197C

1

197D

1

203
222L Setscrew Steel
228 Frame – close coupled Cast iron

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide
Optional: carbon-filled Tefzel / Dry-guard

silicon carbide

Optional: Dry-guard silicon carbide

Key – impeller to bearings Teflon

Bearing – radial Standard: carbon graphite

Optional: silicon carbide

Optional: Dry-guard silicon carbide
Bearing – reverse thrust Carbon-filled Teflon
Bearing – impeller thrust Standard: carbon-filled Teflon

Optional: silicon carbide

Optional: Dry-guard silicon carbide
Wear ring – rear Carbon-filled Teflon

3298 Family Installation, Operation, and Maintenance Manual 95

Parts Listings and Cross-Sectionals

Item Part name Material

1

351G

Gasket – casing drain Gylon

356A Hex capscrew – clamp ring to casing 304 SS
358 Flange – casing drain Steel

1

360W

Gasket – frame support to clamp ring Aramid fibers with EPDM

370B Hex capscrew – frame to clamp ring 304 SS
370F Hex capscrew – frame foot 304 SS
371 Hex capscrew – frame to motor 304 SS
408A Plug – drain Steel

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM

Optional: Teflon- encapsulated Viton

Optional: Chemraz 505

Optional: Kalrez 4079

418 Hex tap bolt – jacking 304 SS
426A Hex capscrew – casing drain 304 SS
492A Plug – access hole Steel
740B Drive carrier Cast iron / neodymium iron
750 Containment shell Tefzel / fiber-reinforced vinylester

1

Recommended spare parts

3298 L group frame-mounted pump in sizes 1-1/2 x 3 - 10, 2 x 3 - 10, 3 x 4 - 10G, 3 x 4 - 10H, and 4 x 6 - 10

L group frame-mounted drawing

96 3298 Family Installation, Operation, and Maintenance Manual

Parts Listings and Cross-Sectionals

Figure 77: Two-piece impeller

L group frame-mounted parts list

Item Part name Material

100 Casing Ductile iron / Tefzel
101 Impeller assembly Carbon-fiber-reinforced Tefzel

1

101A

109A End cover Ductile iron

1

112
113A Plug – oil fill Steel
122A Stationary shaft Standard: silicon carbide

122B Drive shaft Steel
141C Clamp ring Ductile iron
144A Rub ring Cast iron
157A Bearing spacer – radial Teflon

1

178S
178Y Key – drive carrier Steel

1

197B

1

197C

1

197D

1

203
228 Frame – bearing Cast iron
241 Frame foot Cast iron
319 Sight window Steel / glass
332A Labyrinth seal Carbon-filled Teflon

1

333D

1

351G
355A Flanged hex nut Steel
356A Hex capscrew – clamp ring to casing 304 SS
358 Flange – casing drain Steel

1

360A

1

360W
361H Retaining ring Teflon-encapsulated silicone
370B Hex capscrew – frame to clamp ring 304 SS
370C Hex capscrew – end cover to frame 304 SS
370F Hex capscrew – frame foot 304 SS
372Y Hex capscrew – frame to rub ring 304 SS
408A Plug – drain Steel
408J Plug – oiler Steel

Bearing spider Standard: carbon-filled Tefzel / silicon

carbide

Optional: carbon-filled Tefzel / Dry-guard

silicon carbide

Ball bearings Steel

Optional: Dry-guard silicon carbide

Key – impeller to bearings Teflon

Bearing – radial Standard: carbon graphite

Optional: silicon carbide

Optional: Dry-guard silicon carbide
Bearing, reverse thrust Carbon-filled Teflon
Bearing – impeller thrust Standard: carbon-filled Teflon

Optional: silicon carbide

Optional: Dry-guard silicon carbide
Wear ring – rear impeller Carbon-filled Teflon

Lip seal Buna rubber
Gasket – casing drain Gylon

Gasket – end cover to frame Varnished Kraft
Gasket – frame to clamp ring Aramid fibers with EPDM

3298 Family Installation, Operation, and Maintenance Manual 97

Parts Listings and Cross-Sectionals

Item Part name Material

1

412M

O-ring – containment shell Standard: Viton

Optional: EPDM

Optional: Teflon

Optional: Chemraz 505

Optional: Kalrez 4079

418 Hex tap bolt – jacking 304 SS
426A Hex capscrew – casing drain 304 SS

1

496G

O-ring – drive magnet assembly Standard: Viton

Optional: EPDM

Optional: Teflon

Optional: Chemraz 505

Optional: Kalrez 4079

529

1

Washer – wave spring Steel

740A Drive magnet assembly Tefzel / neodymium iron
740B Drive carrier Cast iron / neodymium iron
750 Containment shell Carbon-filled Tefzel / fiber-reinforced viny-

1

Recommended spare parts

lester

3298 L group close-coupled pump in sizes 1-1/2 x 3 - 10, 2 x 3 - 10, 3 x 4 - 10G, 3 x 4 - 10H, and 4 x 6 - 10

L group close-coupled drawing

98 3298 Family Installation, Operation, and Maintenance Manual