Goulds Pumps 3420 User Manual

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Installation, Operation and Maintenance Instructions

Model 3420

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2 3420 IOM 8/09

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FOREWORD

This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Model 3420/25 Single Stage Double Suction Pump*. This manual covers the standard product plus common options that are available. For special options, supplemental instructions are supplied. This manual must be read and understood before installation and start-up.

The design, materials, and workmanship incorporated in the construction of Goulds pumps makes them capable of giving trouble-free service. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct application, proper installation, periodic inspection, condition monitoring and careful maintenance. This instruction manual was prepared to assist operators in understanding the construction and the correct methods of installing, operating, and maintaining these pumps.

ITT - Goulds Pumps shall not be liable for physical injury, damage or delays caused by a failure to observe the instructions for Installation, Operation, and Maintenance contained in this manual.

When pumping unit is installed in a potentially explosive atmosphere, the instructions after the followed. Personal injury and/or equipment damage may occur if these instructions are not followed. If there is any question regarding these requirements or if the equipment is to be modified, please contact a Goulds representative before proceeding.

Warranty is valid only when genuine ITT - Goulds Pumps parts are used.

Use of the equipment on a service other than stated in the order will nullify the warranty, unless written approval is obtained in advance from ITT - Goulds Pumps.

Supervision by an authorized ITT - Goulds Pumps representative is recommended to assure proper installation.

Additional manuals can be obtained by contacting your local ITT - Goulds Pumps representative or by calling 1-800-446-8537.

* The 3420 is an all English dimension unit and the 3425 is a hard metric design.

A symbol must be

THIS MANUAL EXPLAINS

Proper Installation

Start-up Procedures

Operation Procedures

Routine Maintenance

Pump Overhaul

Trouble Shooting

Ordering Spare or Repair Parts

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4 3420 IOM 8/09

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TABLE OF CONTENTS

PAGE SECTION

7 SAFETY

11 GENERAL INFORMATION

15 INSTALLATION

25 OPERATION

37 PREVENTIVE MAINTENANCE

43 DISASSEMBLY & REASSEMBLY

77 SPARE AND REPAIR PARTS

99 APPENDIX

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Industrial Process Pump Safety Manual

IMPORTANT SAFETY NOTICE

To: Our Valued Customers

User safety is a major focus in the design of our products. Following the precautions outlined in this manual will minimize your risk of injury.

ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and operated.

Safe installation, operation, and maintenance of ITT Goulds Pumps equipment are an essential end user responsibility. This Pump Safety Manual identifies specific safety risks that must be considered at all times during product life. Understanding and adhering to these safety warnings is mandatory to ensure personnel, property, and/or the environment will not be harmed. Adherence to these warnings alone, however, is not sufficient — it is anticipated that the end user will also comply with industry and corporate safety standards. Identifying and eliminating unsafe installation, operating and maintenance practices is the responsibility of all individuals involved in the installation, operation, and maintenance of industrial equipment.

Please take the time to review and understand the safe installation, operation, and maintenance guidelines outlined in this Pump Safety Manual and the Instruction, Operation, and Maintenance (IOM) manual. Current manuals are available at your nearest Goulds Pumps sales representative.

These manuals must be read and understood before installation and start-up.

For additional information, contact your nearest Goulds Pumps sales representative or visit our Web site at

www.gouldspumps.com.

www.gouldspumps.com/literature_ioms.html or by contacting

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SAFETY WARNINGS

Specific to pumping equipment, significant risks bear reinforcement above and beyond normal safety precautions.

WARNING

A pump is a pressure vessel with rotating parts that can be hazardous. Any pressure vessel can explode, rupture, or discharge its contents if sufficiently over pressurized causing death, personal injury, property damage, and/or damage to the environment. All necessary measures must be taken to ensure over pressurization does not occur.

WARNING

Operation of any pumping system with a blocked suction and discharge must be avoided in all cases. Operation, even for a brief period under these conditions, can cause superheating of enclosed pumpage and result in a violent explosion. All necessary measures must be taken by the end user to ensure this condition is avoided.

WARNING

The pump may handle hazardous and/or toxic fluids. Care must be taken to identify the contents of the pump and eliminate the possibility of exposure, particularly if hazardous and/or toxic. Potential hazards include, but are not limited to, high temperature, flammable, acidic, caustic, explosive, and other risks.

WARNING

Pumping equipment Instruction, Operation, and Maintenance manuals clearly identify accepted methods for disassembling pumping units. These methods must be adhered to. Specifically, applying heat to impellers and/or impeller retaining devices to aid in their removal is strictly forbidden. Trapped liquid can rapidly expand and result in a violent explosion and injury.

ITT Goulds Pumps will not accept responsibility for physical injury, damage, or delays caused by a failure to observe the instructions for installation, operation, and maintenance contained in this Pump Safety Manual or the current IOM available at www.gouldspumps.com/literature.

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SAFETY

DEFINITIONS

Throughout this manual the words WARNING, CAUTION, ELECTRICAL, and ATEX are used to indicate where special operator attention is required.

Observe all Cautions and Warnings highlighted in this Pump Safety Manual and the IOM provided with your equipment.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Example: Pump shall never be operated without coupling guard installed correctly.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Example: Throttling flow from the suction side may cause cavitation and pump damage.

ELECTRICAL HAZARD



Indicates the possibility of electrical risks if directions are not followed.

Example: Lock out driver power to prevent electric shock, accidental start-up, and physical injury.

 When installed in potentially explosive atmospheres, the instructions that follow the Ex symbol must be

followed. Personal injury and/or equipment damage may occur if these instructions are not followed. If there is any question regarding these requirements or if the equipment is to be modified, please contact an ITT Goulds Pumps representative before proceeding.

Example:

parts, resulting in a spark and heat generation.

 Improper impeller adjustment could cause contact between the rotating and stationary

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GENERAL PRECAUTIONS

WARNING

A pump is a pressure vessel with rotating parts that can be hazardous. Hazardous fluids may be contained by the pump including high temperature, flammable, acidic, caustic, explosive, and other risks. Operators and maintenance personnel must realize this and follow safety measures. Personal injuries will result if procedures outlined in this manual are not followed. ITT Goulds Pumps will not accept responsibility for physical injury, damage or delays caused by a failure to observe the instructions in this manual and the IOM provided with your equipment.

General Precautions

WARNING

NEVER APPLY HEAT TO REMOVE IMPELLER. It may explode due to trapped liquid.

NEVER use heat to disassemble pump due to risk of explosion from trapped liquid.

WARNING

NEVER operate pump without coupling guard correctly installed.

NEVER run pump below recommended minimum flow when dry, or without prime.



ALWAYS lock out power to the driver before performing pump maintenance.



NEVER operate pump without safety devices installed.

NEVER operate pump with discharge valve closed.



NEVER operate pump with suction valve closed.



DO NOT change service application without approval of an authorized ITT Goulds Pumps representative.



Safety Apparel:

 Insulated work gloves when handling hot bearings or using bearing heater  Heavy work gloves when handling parts with sharp edges, especially impellers  Safety glasses (with side shields) for eye protection  Steel-toed shoes for foot protection when handling parts, heavy tools, etc.  Other personal protective equipment to protect against hazardous/toxic fluids

Receiving:

Assembled pumping units and their components are heavy. Failure to properly lift and support equipment can result in serious physical injury and/or equipment damage. Lift

WARNING

equipment only at specifically identified lifting points or as instructed in the current IOM.

Current manuals are available at from your local ITT Goulds Pumps sales representative. Note: Lifting devices (eyebolts, slings, spreaders, etc.) must be rated, selected, and used for the entire load being lifted.

www.gouldspumps.com/literature_ioms.html or

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WARNING

General Precautions

Alignment:

Shaft alignment procedures must be followed to prevent catastrophic failure of drive components or unintended contact of rotating parts. Follow coupling manufacturer’s



coupling installation and operation procedures.

WARNING

CAUTION

WARNING

Before beginning any alignment procedure, make sure driver power is locked out. Failure to lock out driver power will result in serious physical injury.



Piping:

Never draw piping into place by forcing at the flanged connections of the pump. This may impose dangerous strains on the unit and cause misalignment between pump and driver.



Pipe strain will adversely effect the operation of the pump resulting in physical injury and damage to the equipment.

Flanged Connections:

Use only fasteners of the proper size and material.

Replace all corroded fasteners.

Ensure all fasteners are properly tightened and there are no missing fasteners.

Startup and Operation:

When installing in a potentially explosive environment, please ensure that the motor is



properly certified.

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



Lock out driver power to prevent accidental start-up and physical injury.



The impeller clearance setting procedure must be followed. Improperly setting the clearance or not following any of the proper procedures can result in sparks, unexpected



heat generation and equipment damage.

If using a cartridge mechanical seal, the centering clips must be installed and set screws loosened prior to setting impeller clearance. Failure to do so could result in sparks, heat



generation, and mechanical seal damage.

WARNING

CAUTION

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



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

Make sure to properly lubricate the bearings. Failure to do so may result in excess heat generation, sparks, and / or premature failure.



The mechanical seal used in an ATEX classified environment must be properly certified. Prior to start up, ensure all points of potential leakage of process fluid to the work environment are closed.



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CAUTION

WARNING

General Precautions

Never operate the pump without liquid supplied to mechanical seal. Running a mechanical seal dry, even for a few seconds, can cause seal damage and must be avoided. Physical



injury can occur if mechanical seal fails.

Never attempt to replace packing until the driver is properly locked out and the coupling spacer is removed.

WARNING

CAUTION

WARNING

CAUTION

Dynamic seals are not allowed in an ATEX classified environment.



DO NOT operate pump below minimum rated flows or with suction and/or discharge valve closed. These conditions may create an explosive hazard due to vaporization of



pumpage and can quickly lead to pump failure and physical injury.

Ensure pump is isolated from system and pressure is relieved before disassembling pump, removing plugs, opening vent or drain valves, or disconnecting piping.

Shutdown, Disassembly, and Reassembly:

Pump components can be heavy. Proper methods of lifting must be employed to avoid physical injury and/or equipment damage. Steel toed shoes must be worn at all times.

The pump may handle hazardous and/or toxic fluids. Observe proper decontamination procedures. Proper personal protective equipment should be worn. Precautions must be taken to prevent physical injury. Pumpage must be handled and disposed of in conformance with applicable environmental regulations.

Operator must be aware of pumpage and safety precautions to prevent physical injury.

Lock out driver power to prevent accidental startup and physical injury.



Allow all system and pump components to cool before handling them to prevent physical injury.

If pump is a Model NM3171, NM3196, 3198, 3298, V3298, SP3298, 4150, 4550, or 3107, there may be a risk of static electric discharge from plastic parts that are not properly grounded. If pumped fluid is non-conductive, pump should be drained and



flushed with a conductive fluid under conditions that will not allow for a spark to be released to the atmosphere.

Never apply heat to remove an impeller. The use of heat may cause an explosion due to trapped fluid, resulting in severe physical injury and property damage.

Wear heavy work gloves when handling impellers as sharp edges may cause physical injury.

Wear insulated gloves when using a bearing heater. Bearings will get hot and can cause physical injury.

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ATEX CONSIDERATIONS and INTENDED USE

Special care must be taken in potentially explosive environments to ensure that the equipment is properly maintained. This includes but is not limited to:

1. Monitoring the pump frame and liquid end temperature.

2. Maintaining proper bearing lubrication.

3. Ensuring that the pump is operated in the intended hydraulic range.

The ATEX conformance is only applicable when the pump unit is operated within its intended use. Operating, installing or maintaining the pump unit in any way that is not covered in the Instruction, Operation, and Maintenance manual (IOM) can cause serious personal injury or damage to the equipment. This includes any modification to the equipment or use of parts not provided by ITT Goulds Pumps. If there is any question regarding the intended use of the equipment, please contact an ITT Goulds representative before proceeding. Current IOMs are available at Pumps Sales representative.

All pumping unit (pump, seal, coupling, motor and pump accessories) certified for use in an ATEX classified environment, are identified by an ATEX tag secured to the pump or the baseplate on which it is mounted. A typical tag would look like this:

www.gouldspumps.com/literature_ioms.html or from your local ITT Goulds

The CE and the Ex designate the ATEX compliance. The code directly below these symbols reads as follows:

II = Group 2 2 = Category 2 G/D = Gas and Dust present T4 = Temperature class, can be T1 to T6 (see Table 1)

Table 1

Max permissible

surface temperature

Code

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

F (oC)

The code classification marked on the equipment must be in accordance with the specified area where the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds Pumps sales representative before proceeding.

Max permissible

liquid temperature

F (oC)

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PARTS

The use of genuine Goulds parts will provide the safest and most reliable operation of your pump. ITT Goulds Pumps ISO certification and quality control procedures ensure the parts are manufactured to the highest quality and safety levels.

Please contact your local Goulds representative for details on genuine Goulds parts.

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GENERAL INFORMATION

PUMP DESCRIPTION ................................11

NAMEPLATE INFORMATION ...........................13

RECEIVING THE PUMP ...............................14

PUMP DESCRIPTION

The model is based on 8 bearing configurations and 15 hydraulic sizes. Groupings are as follows:

Group Description Sizes

(modified)

—

LDS

XXL

Ball radial and duplex ball thrust bearings. Flood oil lube with constant level oiler optional grease lube. Bearing housings bolt to the casing. Goulds non-metallic labyrinth seals.

Ball radial and duplex ball thrust bearings. Ring oil lube with constant level oiler optional grease lube. Bearing housing secured with tongue and groove fits and a bearing cap with studs and nuts. Goulds metallic labyrinth seals.

Same as M group except the shaft is longer to accommodate a wider pump.

Ball radial and duplex ball thrust bearings. Ring oil lube with constant level oiler, optional grease lube. Bearing housing secured with tongue and groove fits and a bearing cap with studs and nuts. Goulds metallic labyrinth seals.

Double row roller bearings, both thrust and radial. Ring oil lube with constant level oiler, optional grease lube. Bearing housing secured with tongue and groove fits and a bearing cap with studs and nuts. Goulds metallic labyrinth seals.

12 x 14-15

16 x 18-17H

18 x 20-20

16 x 18-30 18 x 20-30 20 x 24-24 20 x 24-30

20 x 24-28

18 x 20-24

24 x 30-32

30 x 30-31 30 x 30-38

30 x 36-42

20x30-42

36x42-52

The model 3420 is a horizontal between bearings, enclosed impeller double suction centrifugal pump.

Casing - The casing is horizontally split. The upper and lower halves are held together with studs and nuts and/or capscrews. Flanged suction and discharge connections are located in the lower half of the casing and conform to ANSI

16.1/16.5 class 125/150. The casing is supported by integrally cast feet. Separate bearing housings are attached directly to machined fits in each end of the casing with capscrews or machined fits secured with bearing caps and studs and nuts. All sizes have dual volute casings to reduce radial loads on the shaft. The casings are standard with two jacking screws, two lifting lugs for the upper half, two tapered dowel pins for alignment, and a .030 or .016 in. (.75 or .41 mm) non-asbestos parting gasket. The upper half is

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provided with a vent connection, a priming connection, and one or two stuffing box seal ring connections. The lower half is provided with two drain connections, suction and discharge gauge connections, and stuffing box overflow connections.

Impeller - The impeller is an enclosed, double suction design providing axial hydraulic balance. All exterior surfaces are fully machined. The impeller receives a one or two plane spin balance as standard. The impeller is keyed to the shaft and held in place using shaft sleeves and sleeve nuts.

Wear Rings - Casing and impeller wear rings are supplied as standard to maintain proper running clearances and to minimize leakage between the suction and discharge chambers in the casing. Each casing ring is held in place with

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a machined hook lock. The impeller rings are held in place using axial set screws.

Shaft - The shaft is a heavy duty design that minimizes deflection and vibration. The shaft deflection is a maximum of .002 in (.051 mm) at the stuffing box face under the worst operating conditions. The shaft is completely dry with O-ring seals between the impeller and shaft sleeves and the shaft sleeves and the sleeve nuts. The standard shaft is AISI 4340 steel with an option for 316 stainless steel.

Shaft Sleeves - Shaft sleeves are standard on all pumps. They are keyed to the shaft at the impeller and held in place using sleeve nuts. The sleeve nuts tighten against rotation and are secured in place with set screws.

Stuffing Box - Non-asbestos packing is standard. The stuffing box contains a Teflon™ split lantern ring and renewable stuffing box throat bushings. Tapped openings are provided for water sealing from either the pump casing or an outside source. Bypass piping is optional. Two-piece machined split glands are standard on all packed pumps.

Mechanical Seals - Mechanical seals can be supplied as a non-standard option. Most seal designs fit in the standard stuffing box. Goulds does not have its own design gland, so the gland must be supplied by the seal manufacturer.

Bearings - There are many different bearing configurations that are offered on the 3420. Specific configurations are dependent on pump size and group and purchased setup. Grease lubricated ball, grease lubricated roller, flood oil lubricated ball, ring oil lubricated ball, and ring oil lubricated roller bearings are used on various sizes. Oil lubrication is standard with grease optional. The bearing housings are sealed with machined labyrinth seals or lip seals.

Baseplates - Fabricated steel bases are standard with a drip collection chamber and a tapped drain connection. The base is designed to be grouted and has grout and vent holes. Soleplates for the pump only or motor only are offered as an option.

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NAMEPLATE INFORMATION

Every pump has two or three Goulds nameplates that provide information about the pump. The tags are located on the upper half and lower half of the casing.

Description Fig. No. Example

Pump Casing Tag - provides information

about the pump’s hydraulic characteristics. Note the format of the pump size: Discharge x Suction - Nominal maximum Impeller Diameter in inches. (Example: 2x3-8)

(Figs.1&2).

Fig. 1

English

When ordering parts, you will need to identify the pump model, size, serial number, and the item number of the required parts. Information can be taken from the pump casing tags. Item numbers can be found later on in this manual.

Bearing Frame Tag - provides

information on the lubrication system used (Fig. 3).

ATEX Tag - If applicable, your pump unit may have the following ATEX tag affixed to the pump and/or baseplate. See the Safety section for a description of the symbols and codes (Fig. 4).

Fig. 2

Metric

Fig. 3

Fig. 4

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RECEIVING THE PUMP

Inspect the pump as soon as it is received. Carefully check that everything is in good order. Make notes of damaged or missing items on the receipt and freight bill. File any claims with the transportation company as soon as possible.

Storage Requirements

Short Term: (Less than 6 months): Goulds normal

packaging procedure is designed to protect the pump during shipping. Upon receipt, store in a covered and dry location.

Long Term: (More than 6 months): Preservative treatment of bearings and machined surfaces will be required. Rotate shaft several times every three months. Refer to driver and coupling manufacturers for their long term storage procedures. Store in a covered dry location.

Note: Long term storage treatment can be purchased with the initial pump order.

HANDLING

! WARNING

Pump and components are heavy. Failure to properly lift and support the equipment could result in serious physical injury, or damage to the pump(s). Steel-toed shoes must be worn at all times.

Fig. 3A

Use care when moving pumps. Lifting equipment must be able to adequately support the entire assembly. Hoist a bare pump or a pump and soleplate unit using a suitable sling, under the two bearing housings (Fig. 3A). Baseplate mounted units without motors are moved by supporting the pump with a sling under the two bearing housings and a sling under the motor end of the baseplate (Fig. 3B). Baseplate mounted units with motors are moved with slings attached to the baseplate lifting lugs. The use of a spreader bar is required so that the pump is not damaged (Fig 3C).

Fig. 3B

Fig. 3C

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INSTALLATION

SITE/FOUNDATION................................15

BASEPLATE INSTALLATION PROCEDURE .................16

LEVEL BASEPLATE ...............................16

ALIGNMENT AND ALIGNMENT PROCEDURE ...............18

Alignment Check ................................18

Alignment Criteria ...............................18

SetUp......................................19

Measurement ..................................19

Angular Alignment ...............................19

Parallel Alignment ...............................20

Complete Alignment ..............................20

Alignment Trouble Shooting ..........................21

GROUT BASEPLATE ...............................21

Alignment Check ................................21

PIPING........................................21

General .....................................21

Suction Piping .................................22

Discharge Piping ................................22

Final Piping Check ...............................23

FOUNDATION

The foundation must be substantial enough to absorb vibration. (Hydraulic Institute Standards recommends the foundation weigh at least five [5] times the weight of the pump unit.) It must form a permanent and rigid support for the baseplate. This is important in maintaining the alignment of a flexibly coupled unit.

Foundation bolts of the proper size should be embedded in the concrete to a depth of eight (8) to twelve (12) inches and locked with either a hook around a reinforcing bar or alternatively, a nut and washer at the bottom. The bolts should have a sleeve around them at least six (6) times the bolt diameter in length and at least two (2) bolt sizes larger in I.D. If a nut and washer are used for locking, the washer should have an O.D. two (2) sizes larger than the sleeve. Foundation bolts should be sized .125" less than the anchor bolt holes in the base.

The foundation should be poured to within .75" - 1.5" of the finished height. (See Fig. 4) Freshly poured foundations should be allowed to cure for several days before the unit is set in place and grouted.

Fig. 4

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BASEPLATE INSTALLATION PROCEDURE

Industry standard procedures and/or the following procedure should be followed prior to grouting the baseplate. The procedure assumes the installer has a basic knowledge of baseplate and foundation design and installation methods.

BASEPLATE PREPARATION

1. Inspect all surfaces of the baseplate that will contact the grout for contamination (rust, oil, grime, etc.)

2. Thoroughly clean all surfaces of the baseplate that will contact the grout with a cleaner that will not leave any residue.

NOTE: It may be necessary to sandblast the contact surfaces and coat with a primer compatible with the grout. If sandblasting is necessary, remove all the equipment prior to sandblasting.

LEVEL BASEPLATE

1. Place two sets of wedges or shims on the foundation, one set on each side of every foundation bolt. The wedges should extend .75 in. (20 mm) to 1.5 in. (40 mm) above the foundation to allow for adequate grouting. This will provide even support for the baseplate once it is grouted.

3. Inspect all machined surfaces for burrs, rust, paint, or any other type of contamination. If necessary, use a honing stone to remove any burrs.

FOUNDATION PREPARATION

1. Chip the top of the foundation .50-1.0 in. (13-25 mm) to remove porous or low strength concrete. If using a pneumatic hammer, assure that it is not contaminating the surface with oil, moisture, etc.

2. Remove water and/or debris from the foundation bolt holes/sleeves. If sleeve type bolts are being used, fill the sleeves with stuffing material and seal to prevent grout from entering.

3. Coat the exposed portion of the anchor bolts with a non-bonding compound to prevent grout from adhering to the anchor bolts.

4. If recommended by the grout manufacturer, coat the foundation surface with a compatible primer.

2. Remove water and/or debris from anchor bolt holes/sleeves prior to grouting. If sleeve type bolts are being used, fill the sleeves with rags to prevent grout from entering.

Fig. 6

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3. Carefully lower the baseplate onto the foundation bolts.

4. Level the baseplate to within .125 in. (3.2 mm) over the length of the baseplate and to within .088 in. (1.5 mm) over the width of the baseplate by adjusting the wedges. If the baseplate has vertical leveling screws, use the screws to level the base.

5. Hand tighten the foundation bolts.

Fig. 7

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ALIGNMENT AND ALIGNMENT PROCEDURE

Alignment procedures must be followed to prevent

unintended contact of rotating parts. Follow coupling manufacturer’s installation and operation procedures.

! WARNING

Before beginning any alignment procedure, make sure driver power is locked out. Failure to lock out driver power may result in serious physical injury.

To remove guard, refer to coupling guard assembly/ disassembly instructions.

The points at which alignment is checked and adjusted are:

Initial Alignment is done prior to operation when the

•

pump and the driver are at ambient temperature.

Final Alignment is done after operation when the

•

pump and driver are at operating temperature.

Alignment is achieved by adding or removing shims from under the feet of the driver and shifting equipment horizontally as needed.

Final Alignment (Hot Alignment)

After First Run - To obtain correct alignment when

•

both pump and driver are at operating temperature. Thereafter, alignment should be checked periodically in accordance with plant operating procedures.

NOTE: Alignment check must be made if process temperature changes, piping changes and or pump service is performed.

ALIGNMENT CRITERIA

Good alignment is achieved when the dial indicator readings as specified in the alignment procedure are .002 in. (.05 mm) Total Indicated Reading (T.I.R.) or less when the pump and driver are at operating temperature (Final Alignment).

During the installation phase, however, it is necessary to set the parallel alignment in the vertical direction to a different criteria due to differences in expansion rates of the pump and driver. Table 1 shows recommended preliminary (cold) settings for electric motor driven pumps based on different pumpage temperatures. Driver manufacturers should be consulted for recommended cold settings for other types of drivers (steam turbines, engines, etc.)

NOTE: Proper alignment is the responsibility of the installer and user of the unit.

Accurate alignment of the equipment must be attained. Trouble-free operation can be accomplished by following these procedures.

ALIGNMENT CHECKS

Initial Alignment (Cold Alignment)

Before Grouting Baseplate - To ensure alignment can

•

be obtained.

After Grouting Baseplate - To ensure no changes have

•

occurred during grouting process.

After Connecting Piping - To ensure pipe strains have

•

not altered alignment. If changes have occurred, alter piping to remove pipe strains on pump flanges.

Table 1

Cold Setting of Parallel

Vertical Alignment

Pumpage Temperature Set Driver Shaft

ambient N/A

100°F 200°F 300°F

.000" - .002" HIGH

.002” - .004” HIGH

.004” - .006” HIGH

18 3420 IOM 08/09

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SET UP

1. Mount two dial indicators on the pump coupling half (X) so they contact the other coupling half (Y) (Figs. 8 & 9).

Fig. 8

Fig. 10

Vertical Correction (Top-to-Bottom)

1. Zero indicator A at top dead center (12 o‘clock) of coupling half Y.

2. Rotate indicators to bottom dead center (6 o‘clock). Observe needle and record reading.

3. Negative Reading - The coupling halves are further apart at the bottom than at the top. Correct by either raising the driver feet at the shaft end (add shims) or lowering the driver feet at the other end (remove shims).

Fig. 9

2. Check setting of indicators by rotating coupling half X to ensure indicators stay in contact with coupling half Y but do not bottom out. Adjust indicators accordingly.

MEASUREMENT

1. To ensure accuracy of indicator readings, always rotate both coupling halves together so indicators contact the same point on coupling half Y. This will eliminate any measurement problems due to runout on coupling half Y.

2. Take indicator measurements with driver feet hold-down bolts tightened. Loosen hold down bolts prior to making alignment corrections.

3. Take care not to damage indicators when moving driver during alignment corrections.

ANGULAR ALIGNMENT

A unit is in angular alignment when indicator A (Angular indicator) does not vary by more that .002 in. (.05 mm) as

measured at four points 90° apart (Fig. 10).

Positive Reading - The coupling halves are closer at the bottom than at the top. Correct by either lowering the driver feet at the shaft end (remove shims) or raising the driver feet at the other end (add shims).

4. Repeat steps 1-3 until indicator A reads .002 in (.05 mm) or less.

Horizontal Correction (Side-to-Side)

1. Zero indicator A on left side of coupling half Y, 90° from top dead center (9 o’clock).

2. Rotate indicators through top dead center to the right side, 180° from the start (3 o’clock). Observe needle

and record reading.

3. Negative Reading - The coupling halves are further apart on the right side than the left. Correct by either sliding the shaft end of the driver to the left or the other end to the right.

Positive Reading - The coupling halves are closer together on the right side than the left. Correct by either sliding the shaft end of the driver to the right or the other end to the left.

4. Repeat steps 1 through 3 until indicator A reads .002 in. (.05 mm) or less.

5. Re-check both horizontal and vertical readings to ensure adjustment of one did not disturb the other. Correct as necessary.

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PARALLELALIGNMENT

A unit is in parallel alignment when indicator P (parallel indicator) does not vary by more than .002 in. (.05 mm) as

measured at four points 90° apart at operating temperature. Note the preliminary vertical cold setting criteria, Table 1.

Vertical Correction (Top-to-Bottom)

1. Zero indicator P at top dead center of coupling (12 o’clock) half Y.

2. Rotate indicator to bottom dead center (6 o‘clock). Observe needle and record reading.

3. Negative Reading - Coupling half X is lower than coupling half Y. Correct by removing shims of thickness equal to half of the indicator reading under each driver foot.

Positive Reading - Coupling half X is higher than coupling half Y. Correct by adding shims of thickness equal to half of the indicator reading from each driver foot.

NOTE: Equal amounts of shims must be added to or removed from each driver foot. Otherwise the vertical angular alignment will be affected.

4. Repeat steps 1 through 3 until indicator P reads within .002 in. (.05 mm) or less when hot, or per Table 1 when cold.

Horizontal Correction (Side-to-Side)

1. Zero indicator P on the left side of coupling half Y, 90° from top dead center (9 o‘clock).

2. Rotate indicators through top dead center to the right side, 180° from the start (3 o‘clock). Observe needle and record reading.

3. Negative Reading - Coupling half Y is to the left of coupling half X. Correct by sliding driver evenly in the appropriate direction.

NOTE: Failure to slide motor evenly will affect horizontal angular correction.

4. Repeat steps 1 through 3 until indicator P reads .002 in. (.05 mm) or less.

5. Re-check both horizontal and vertical readings to ensure adjustment of one did not disturb the other. Correct as necessary.

COMPLETE ALIGNMENT

A unit is in complete alignment when both indicators A (angular) and P (parallel) do not vary by more than .002 in. (.05 mm) as measured at four points 90 apart.

Vertical Correction (Top-to-Bottom)

1. Zero indicators A and P at top dead center (12 o'clock) of coupling half Y.

2. Rotate indicator to bottom dead center (6 o'clock). Observe the needles and record the readings.

3. Make corrections as outlined previously.

Horizontal Correction (Side-to-Side)

1. Zero indicators A and P on the left side of coupling half Y, 90° from top dead center (9 o'clock).

2. Rotate indicators through top dead center to the right side, 180° from the start (3 o‘clock). Observe the needle, measure and record the reading.

3. Make corrections as outlined previously.

4. Recheck both vertical and horizontal readings to ensure adjustment of one did not disturb the other. Correct as necessary.

NOTE: With experience, the installer will understand the interaction between angular and parallel and will make corrections appropriately.

Positive Reading - Coupling half Y is to the right of coupling half X. Correct by sliding driver evenly in the appropriate direction.

20 3420 IOM 08/09

Page 25

ALIGNMENT TROUBLESHOOTING

Problem Probable Cause Remedy

Driver feet bolt bound.

Cannot obtain horizontal (Side-to-Side)

alignment, angular or parallel

Cannot obtain vertical (Top-to-Bottom)

alignment, angular or parallel

Baseplate not leveled properly, probably

Baseplate not leveled properly,

probably bowed.

GROUT BASEPLATE

1. Clean areas of baseplate that will contact grout. Do not use oil-based cleaners because grout will not bond to it. Refer to grout manufacturers instructions.

2. Build dam around foundation. Thoroughly wet foundation (Fig. 11).

3. Pour grout through grout hole in baseplate, up to level of dam. Remove air bubbles from grout as it is poured by puddling, using a vibrator, or pumping the grout into place. Non-shrink grout is recommended.

twisted.

Loosen pump hold-down bolts and slide pump and driver until horizontal alignment is achieved.

Determine which corner(s) of the baseplate are high or low and remove or add shims at the appropriate corner(s) and realign.

Determine if center of baseplate should be raised or lowered and correct by evenly add ing or removing shims at the center of the baseplate.

4. Allow grout to set.

5. Fill remainder of baseplate with grout. Remove air as before (Fig. 12).

Flange loads from the piping system, including

those from thermal expansion of the piping, must not exceed the limits of the pump. Casing deformation can result in contact with rotating parts and result in excess heat generation, sparks and premature failure.

Fig. 11

Fig. 12

6. Allow grout to set at least 48 hours.

7. Tighten foundation bolts.

ALIGNMENT CHECK

Re-check alignment before continuing, using methods previously described.

PIPING

GENERAL

Guidelines for piping are given in the “Hydraulic Institute Standards” available from: Hydraulic Institute, 30200 Detroit Road, Cleveland, OH 44145-1967 and must be reviewed prior to pump installation.

3420 IOM 08/09 21

Page 26

! WARNING

Never draw piping into place by forcing at the flanged connections of the pump. This may impose dangerous strains on the unit and cause misalignment between pump and driver. Pipe strain will adversely effect the operation of the pump resulting in physical injury and damage to the equipment.

1. All piping must be supported independently of, and line up naturally with, the pump flanges.

2. Piping runs should be as short as possible to minimize friction losses.

3. DO NOT connect piping to pump until grout has hardened and pump and driver hold-down bolts have been tightened.

4. It is suggested that expansion loops or joints be properly installed in suction and/or discharge lines when handling liquids at elevated temperatures, so linear expansion of piping will not draw pump out of alignment.

! WARNING

All expansion joints should be properly supported, anchored, and restrained. Failure to do so may result in serious physical injury if the expansion joint fails.

5. The piping should be arranged to allow pump flushing prior to removal of the unit on services handling corrosive liquids.

6. Carefully clean all pipe parts, valves and fittings, and pump branches prior to assembly.

straight pipe between the elbow and the pump suction flange.

3. Use suction pipe one or two sizes larger than the pump suction, with a reducer at the suction flange. Suction piping should never be of smaller diameter than the pump suction.

4. Reducers, if used, should be eccentric, at the pump suction flange, with sloping side down.

5. Pump must never be throttled on suction side.

6. Suction strainers, when used, must have a net “free area” of at least three times the suction pipe area.

7. Separate suction lines are recommended when more than one pump is operating from the same source of supply.

Suction Lift Conditions

1. Suction pipe must be free from air pockets.

2. Suction piping must slope upwards to pump.

3. All joints must be air tight.

4. A means of priming the pump must be provided, such as a foot valve.

Suction Head/Flooded Suction Conditions

1. An isolation valve should be installed in the suction line at least two pipe diameters from the suction to permit closing of the line for pump inspection and maintenance.

2. Keep suction pipe free from air pockets.

3. Piping should be level or slope gradually downward from the source of supply.

SUCTION PIPING

! WARNING

NPSHAmust always exceed NPSHRas shown on Goulds performance curves received with order. Reference Hydraulic Institute for NPSH and pipe friction values needed to evaluate suction piping.

Properly installed suction piping is a necessity for trouble-free pump operation. Suction piping should be flushed BEFORE connection to the pump.

1. Use of elbows close to the pump suction flange should be avoided. There should be a minimum of two pipe diameters of straight pipe between the elbow and suction inlet. Where used, elbows should be long radius.

2. If an elbow must be used at the suction flange, it must be in the vertical position only. If an elbow must be used in other than a vertical position, it is permissable only by providing a minimum of two diameters of

4. No portion of the piping should extend below pump suction flange.

5. The size of entrance from supply should be one or two sizes larger than the suction pipe.

6. The suction pipe must be adequately submerged below the liquid surface to prevent vortices and air entrainment at the supply.

DISCHARGE PIPING

1. Isolation and check valves should be installed in discharge line. Locate the check valve between isolation valve and pump, this will permit inspection of the check valve. The isolation valve is required for priming, regulation of flow, and for inspection and maintenance of pump. The check valve prevents pump or seal damage due to reverse flow through the pump when the driver is turned off.

2. Increasers, if used, should be placed between pump and check valves.

22 3420 IOM 08/09

Page 27

3. Cushioning devices should be used to protect the pump from surges and water hammer if quick- closing valves are installed in system.

FINAL PIPING CHECK

After connecting the piping to pump:

1. Rotate shaft several times by hand to be sure that there is no binding and all parts are free.

2. Check alignment, per the alignment procedure outlined previously to determine absence of pipe strain. If pipe strain exists, correct piping.

3420 IOM 08/09 23

Page 28

24 3420 IOM 08/09

Page 29

OPERATION

PREPARATION FOR START-UP ..........................25

Check Rotation ...................................25

Couple Pump and Driver ..............................25

Lubricating Bearings ................................26

Shaft Sealing ....................................27

Priming Pump ...................................29

STARTING PUMP ...................................31

OPERATION ......................................31

General Considerations...............................31

Operating at Reduced Capacity ..........................31

Operating Under Freezing Conditions .......................32

SHUTDOWN ......................................32

FINAL ALIGNMENT .................................32

PREPARATION FOR START-UP

When installing in a potentially explosive

environment, ensure that the motor is properly certified.

4. Make sure everyone is clear. Jog driver just long enough to determine the direction of rotation. The rotation must correspond to the arrow on the pump casing.

CHECK ROTATION

1. Lock out power to the driver.

! WARNING

Lock out driver power to prevent accidental start-up and physical injury.

All equipment being installed must be properly

grounded to prevent unexpected static electric discharge.

2. Make sure the coupling hubs are securely fastened to the shafts.

! WARNING

Do not jog a coupled pump.

Serious injury may result if pump is run in the wrong direction.

CAUTION

5. Lock out the power to the driver.

COUPLE PUMP & DRIVER

! WARNING

Lock out driver power to prevent accidental rotation and physical injury.

1. Install and lubricate the coupling per the manufacturer’s instructions.

The coupling used in an ATEX classified

environment must be properly certified.

NOTE: Pump is shipped with the coupling hubs disconnected.

3. Unlock driver power.

3420 IOM 8/09 25

Page 30

2. Install the coupling guard (Fig. 13). Refer to the Coupling Guard Installation and Disassembly Section (Appendix I).

The coupling guard used in an ATEX classified

environment must be constructed from a non-sparking material.

! WARNING

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

Leakage of process liquid may result in creating an

explosive atmosphere. Ensure the materials of the pump casing, impeller, shaft, sleeves, gaskets and seals are compatible with the process liquid.

A build up of gases within the pump, sealing system

and or process piping system may result in an explosive environment within the pump or process piping system. Ensure process piping system, pump and sealing system are properly vented prior to operation.

LUBRICATING BEARINGS

Bearings must be lubricated properly in order to

prevent excess heat generation, sparks and premature failure.

Cooling systems such as those for bearing

lubrication, mechanical seal systems, etc, where provided, must be operating properly to prevent excess heat generation, sparks and premature failure.

Rotate shaft by hand to ensure it rotates smoothly

and there is no rubbing which could lead to excess heat generation and or sparks.

Ensure that pump and systems are free of foreign

objects before operating and that objects cannot enter the pump during operation. Foreign objects in the pumpage or piping system can cause blockage of flow which can result in excess heat generation, sparks and premature failure.

Fig. 13

Pumps are shipped without oil.

Oil Lubrication: Oil lubricated pumps are not lubricated at the factory. Constant level oilers are supplied with oil lubricated pumps. The oiler can be found in the box of fittings that accompanied the pump during shipment. The oiler was adjusted to maintain the proper oil level before leaving the factory. The adjustment should be checked in case the setting was disturbed during shipment. See Figure

14. The correct dimensions for A and B are given in Table

2. Fill the bearing housing with oil using the oil bottle. Continue to refill the oil bottle until oil stops draining from the oiler into the housing. See Table 4 for recommended oil.

CAUTION

Instructions

1. Remove adjustment assembly from oiler.

2. Adjust bars to dim. "A".

3. Lock in position.

4. Replace adjust. assem. in oiler

Do not insulate bearing housings as this can result

in excess heat generation, sparks and premature failure.

Check for magnetism on the pump shaft and

degauss the shaft if there is any detectable magnetism. Magnetism will attract ferritic objects to the impeller, seal and bearings which can result in excess heat generation, sparks and premature failure.

Pure/Purge Oil Mist: For pure oil mist, connect the oil mist system according to the manufacturer's recommendations. For purge oil mist, connect the oil mist system per the manufacturers instructions. Fill the pump with oil as detailed for oil lubrication above. In both cases, refer to the pump dimensional drawing for the location of the oil mist connections to the bearing housings. See Table 2 for oil bottle settings and Table 4 for recommended oil.

Fig. 14

26 3420 IOM 8/09

Page 31

Group Sizes

Table 2

Oil Settings - Inches (mm)

Flood Oil Ball / Ring Oil Ball / Ring Oil Roller

Oiler Size “A” in (mm) “B” in (mm)

MX 18 x 20-20

Modified

- 18 x 20-24

L 24 x 30-32

LDS

XXL 36x42-52

12 x 14-15

16 x 18-17H

16 x 18-30

18 x 20-30

20 x 24-24

20 x 24-30

20 x 24-28

30 x 30-31

30 x 30-38

30 x 36-42

20x30-42

Grease Lubrication: Pumps are shipped with grease installed, sufficient for 2,000 hours operation. It is recommended that additional or replacement lubrication be added after every 2,000 hours or at three month intervals. The lubricant should be renewed in the housings at least once each year. See Table 5 (p. 35) for recommended greases.

If the pump is put into operation after a prolonged shut-down, flush out the bearing housings with a light oil to remove any contaminants. During flushing, rotate the shaft slowly by hand. Finally, flush the bearing housing with the proper lubricating oil to ensure oil quality after cleaning.

4 OZ.

#10

16 OZ.

#10

16 OZ.

#10

16 OZ.

#10

16 OZ.

#10

16 OZ.

#10

16 OZ.

#10

16 OZ.

27/32 (21.4) 3/4 (19)

9/16 (14.3) 1/2 (12.7)

27/32 (21.4) 3/4 (19)

7/8 (22.2) 13/16 (20.6)

9/16 (14.3) 1/2 (12.7)

3/8 (9.7) 7/16 (11.1)

the box of fittings shipped with the pump and must be installed before start-up.

Installation of Packing:

1. Carefully clean the stuffing box bore.

2. Twist the packing just enough to get it around the shaft (Fig 15).

! WARNING

Operation of the unit without proper lubrication will cause bearing failure and pump seizure.

SHAFT SEALING

Packed stuffing boxes are not allowed in an ATEX

classified environment.

Packed Stuffing Box: Pumps are shipped without packing, lantern ring, or split gland installed. These are included in

3420 IOM 8/09 27

3. Insert packing, staggering the joints in each ring by 90° degrees.

Fig. 15

Page 32

4. Use a wooden split bushing to properly seat the first two rings of packing. See Fig 16.

Fig. 16

5. The stuffing box arrangement in order of installation is: two packing rings, lantern ring, then three packing rings. See Fig. 17.

pressure for clean pumpages. For an abrasive pumpage, the

flush water pressure should be 30-50 psi (2.1-3.5 kg/cm

)

above the suction pressure.

NOTE: A product flush can be used if a clean pumpage exists.

NOTE: Most packing requires lubrication. Failure to lubricate the packing may shorten the life of the packing and the pump.

Fig. 17

CAUTION

Follow instructions to ensure the lantern ring is located at the flushing connection. Otherwise, no flush will be obtained.

6. Install the gland halves. Bolt the gland halves together and mount on gland studs. Tighten gland nuts.

Connection of Sealing Liquid: If the stuffing box pressure is above atmospheric pressure and the pumpage is clean, normal gland leakage of 40-60 drops per minute is usually sufficient to lubricate and cool the packing. Sealing liquid then, is not required.

An external sealing liquid is required when:

1. Abrasive particles in the pumpage could score the shaft sleeve.

2. Stuffing box pressure is below atmospheric pressure due to the pump running with suction lift or when the suction source is under a vacuum. Under these conditions, packing will not be cooled and lubricated and air will be drawn into the pump.

If an outside source of clean compatible liquid is required, the pressure should be 15 psi (1.0 kg/cm

) above the suction

28 3420 IOM 8/09

Page 33

PRIMING THE PUMP

Never start the pump until it has been properly primed. Several different methods of priming can be used, depending on the type of installation and service involved.

Suction Supply Below Pump

A. Priming with a Foot Valve - With the pump installed on a suction lift and with a foot valve at the end of the suction line, priming can be done any of the following three ways:

Pumps must be fully primed at all times during

operation.

! WARNING

If the pump is run dry, rotating parts within the pump may seize to non-moving parts. This may result in serious physical injury.

Suction Supply Above Pump

When the pump is installed as shown in Fig. 18, the pump will prime itself.

Fig. 18

Outside Supply (Fig. 19)

Fig. 19

1. Close the discharge valve.

2. Remove the vent plugs or open the vent valves on the top of the pump and the two suction lobes.

1. Close the discharge valve.

2. Open the suction valve.

3. Remove the vent plugs or open the vent valves on the top of the pump and the two suction lobes until all air is expelled and fluid flows through the openings.

4. Replace the vent plugs or close the vent valves.

5. Start the pump and open the discharge valve.

The pump will continue to be primed for any future starting. This method is the simplest and, particularly for automatic operation, the safest. A float switch in the suction reservoir can be arranged to stop the pump, should the liquid supply fall below minimum levels.

3. Open the valve in the priming supply line. Fill the pump until all air is expelled and fluid flows through the vents.

4. Replace the vent plugs or close the vent valves and close the valve in the priming supply line.

5. Start the pump and open the discharge valve.

The pump will continue to be primed for any future starting.

3420 IOM 8/09 29

Page 34

Priming with a Separate Hand or Manually Controlled Priming Pump (Fig. 20)

Fig. 20

1. Close the discharge valve.

2. Open the valve in the priming line.

Priming by Bypassing Around the Discharge Check Valve (Fig. 21)

NOTE: This method can only be used when there is liquid under some pressure in the discharge line. The original prime must be effected from some outside source.

Fig. 21

3. Exhaust the air from the pump and the suction piping until water flows from the priming pump.

4. Close the valve in the priming line.

5. Shutoff the priming pump.

6. Start the pump and open the discharge valve.

1. Close the discharge valve.

2. Remove the vent plugs or open the vent valves on the top of the pump and the two suction lobes.

3. Open the valve in the check valve bypass line.

4. Exhaust the air from the pump and the suction piping until water flows from vent connections.

5. Replace the vent plugs or close the vent valves and close the valve in the bypass line.

6. Start the pump and open the discharge valve.

30 3420 IOM 8/09

Page 35

Priming with an Ejector (Fig. 22)

1. Close the discharge valve.

On suction lift applications, an ejector (operated by steam, compressed air, or pressurized water) connected to the top of the casing (priming or vent connection) can be used to remove air from the casing and suction line, thus priming the pump.

Fig. 22

STARTING PUMP

1. Make sure the suction valve and any recirculation or cooling lines are open.

2. Open the ejector supply valve in the steam, air, or water line, valve “E”.

3. Open the priming isolation valve, “S”.

4. Once the unit is primed, close the priming isolation valve, “S”.

5. Close the ejector supply valve, “E”.

6. Start the pump and open the discharge valve.

4. Slowly open the discharge valve until the desired flow is obtained.

2. Fully close or partially open the discharge valve as dictated by system conditions.

3. Start the driver.

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

CAUTION

OPERATION

GENERAL CONSIDERATIONS

Always vary the capacity by regulating the discharge valve. NEVER throttle the flow from the suction side.

The driver may overload if the pumpage specific gravity (fluid density) is greater than originally stated or if the flow rate is exceeded.

Always operate the pump at or near the rated conditions to prevent damage resulting from cavitation or recirculation.

Observe the pump for vibration levels, bearing temperature, and excessive noise. If normal levels are exceeded, shut down the pump and troubleshoot the problem.

CAUTION

OPERATING AT REDUCED CAPACITY

! WARNING

DO NOT operate the pump below the minimum rated flow or with the suction and/or discharge valves closed. These conditions may create an explosive hazard due to vaporization of the pumpage. This can quickly lead to pump failure and physical injury. Refer to Appendix II for the pump's minimum flow.

Damage occurs from:

1. Increased vibration levels - This affects the bearings, stuffing box, and mechanical seal (if supplied).

3420 IOM 8/09 31

Page 36

2. Increased radial loads - Increases stress on the shaft and increases loads on the bearings.

3. Heat build up - Vaporization of the pumpage may cause the rotating parts to score or seize.

4. Cavitation - Damages the internal surfaces of the pump.

SHUTDOWN

OPERATING UNDER FREEZING CONDITIONS

Exposure to freezing conditions, while the pump is idle, could cause the liquid to freeze and damage the pump. Liquid inside the pump should be drained. Liquid inside cooling coils, if supplied, should also be drained.

1. Slowly close the discharge valve.

2. Shut down and lock out the driver to prevent accidental rotation.

! WARNING

Lock out driver power to prevent accidental rotation and physical injury.

FINAL ALIGNMENT

1. Run the unit under actual operating conditions for a sufficient length of time to bring the pump and driver up to the normal operating temperature.

! WARNING

When handling hazardous and/or toxic fluids, proper personal protective equipment should be worn. If the pump is being drained, precautions must be taken to prevent physical injury. The pumpage must be handled and disposed of in conformance with the applicable environmental regulations.

2. Check the alignment while the unit is at the normal operating temperature per the alignment procedure in Section 3.

3. Reinstall the coupling guard. Refer to the coupling guard instructions in Appendix I.

32 3420 IOM 8/09

Page 37

PREVENTIVE MAINTENANCE

GENERAL COMMENTS ...............................33

MAINTENANCE SCHEDULE ............................33

MAINTENANCE OF BEARINGS ..........................34

Oil Lubricated Bearings ..............................34

Grease Lubricated Bearings ............................35

Bearing Removal ..................................36

MAINTENANCE OF SHAFT SEALS ........................37

Mechanical Seals ..................................37

Packed Stuffing Box ................................37

TROUBLE SHOOTING ................................38

GENERAL COMMENTS

A routine maintenance program can extend the life of your pump. Well maintained equipment will last longer and require fewer repairs. You should keep maintenance records. This will help pinpoint potential causes of problems.

The preventive maintenance section must be adhered to in order to keep the applicable ATEX classification of the

equipment. Failure to follow these procedures will void the ATEX classification for the equipment.

MAINTENANCE SCHEDULE

INSPECTION INTERVALS

Inspection intervals should be shortened appropriately if the pumpage is abrasive and/or corrosive,

or if the environment is classified as potentially

explosive.

ROUTINE MAINTENANCE

Bearing lubrication

•

Seal Monitoring

•

Vibration Analysis

•

Discharge Pressure Monitoring

•

ROUTINE INSPECTIONS

Check the level and the condition of the oil

•

Check for unusual noise, vibration, and bearing

•

temperatures

Inspect the pump and piping for leaks

•

Check the seal chamber/stuffing box leakage

•

Mechanical Seal - There should be no leakage.

•

Packing - Excessive leakage requires adjustment

•

or possible packing replacement. Refer to sec tion 4: Operation, for packing gland adjustment.

Temperature Monitoring

•

3420 IOM 8/09 33

Page 38

THREE MONTH INSPECTIONS

Check foundation and hold-down bolts for tightness.

•

If the pump has been left idle, check the packing.

•

Replace, if required.

Oil should be changed every three months (2,000 hrs)

•

or more often if there are any adverse atmospheric conditions or other conditions that may contaminate or break-down the oil. Change the oil whenever it appears cloudy or contaminated.

MAINTENANCE OF BEARINGS

Bearings must be lubricated properly in order to

prevent excess heat generation, sparks and premature failure.

OIL LUBRICATED BEARINGS

! WARNING

Pumps are shipped without oil. Oil lubricated bearings must be lubricated at the jobsite.

Change the oil after 200 hours for new bearings. Thereafter, change the oil every 2,000 hours or three months, whichever comes first.

Check the shaft alignment. Re-align if required.

•

ANNUAL INSPECTIONS

Check the pump capacity, pressure, and power. If the

•

pump performance does not satisfy your process requirements and your process requirements have not changed, the pump should be disassembled, inspected, and the worn parts replaced. Otherwise, a system inspection should be done.

Ring oil or flood oil lubricated anti-friction bearings are standard on all model 3420 pumps. Oil lubricated pumps are supplied with oilers which maintain a constant oil level in the bearing housings. Each oiler should be installed and the pump lubricated as follows:

1. Check the oiler adjustment prior to installing the oiler, refer to Table 2 for the proper oiler setting.

2. Install one oiler in each bearing housing.

Do not fill the bearing housings with oil through any connection other than the oiler connection. This can result in an improper oil level which may shorten the life of the bearings and cause damage to the pump.

!CAUTION

Bearing

Arrangement

Flood Oil Ball Bearing

Ring Oil Ball Bearing

Ring Oil Roller Bearing

Table 3

Bearings and Oil Requirements

Oil Volume Required

Group Sizes

Bearing Size

(per each housing)

Thrust Radial mL pints

MX 18 x 20-20 7316 6316

M (modified) 20 x 24-28 7321 6321 1350 2.85

L 24 x 30-32 22226 1700 3.60

LDS

XXL 36x42-52 22240 4350 9.2

12 x 14-15

16 x 18-17H radial = 580 radial = 1.23

16 x 18-30

18 x 20-30

20 x 24-24

20 x 24-30

18 x 20-24 7318 6318 620 1.32

30 x 30-31

30 x 30-38

30 x 36-42

20x30-42

7313 6313

7321 6321 1170 2.47

22228 1720 3.64

22230 1350 2.85

thrust = 850 thrust = 1.80

thrust = 1350 thrust = 2.85

radial 857 radial = 1.81

34 3420 IOM 8/09

Page 39

3. Fill each oiler bottle with oil and replace the oiler bottle in its housing. The oil will drain into the bearing housing. Several refills will be required. Oil will be at the proper level in the housings when oil remains in the bottle. Do not fill the bearing housings with oil through any other bearing housing connection. Refer to Table 2 (p. 27) for setting and Table 3 for volume.

A high quality turbine oil with rust and oxidation inhibitors should be used. For the majority of operational conditions,

bearing temperatures will run between 120°F (50° C) and 180° F (82° C). In this range, an oil of ISO viscosity grade 68 at 100° F (40° C) is recommended. If bearing temperatures exceed 180° F (82° C) use ISO viscosity

grade 100. See Table 4 for oil requirements.

Some acceptable lubricants are:

Table 4

Lube Oil Requirements

Exxon Teresstic EP 68

Mobil DTE 26 300 SSU

Mobil

Sunoco Sunvis 968

Royal Purple

@ 100

F (38oC)

SYNFILM ISO VG 68 Synthetic Lubricant

For most operating conditions, a lithium based mineral oil grease of NGLI consistency No. 2 is recommended. This

grease is acceptable for bearing temperatures of 5° Fto 230° F (-15° Cto110° C). Bearing temperatures are generally 20° F (18° C) higher than the bearing housing

outer surface temperature. See Table 5 for acceptable greases.

Table 5

Lubricating Grease Requirements

NGLI consistency 2

Mobil Mobilux EP2

Exxon Unirex N2

Sunoco Multipurpose EP

SKF LGMT 2

Never mix greases of different consistency (1 or 3 with NGLI 2) or different thickener. For example, never mix a lithium based grease with a polyurea based grease.

NOTE: If it is necessary to change the grease type or consistency, the bearings must be removed and the old grease removed.

!CAUTION

GREASE LUBRICATED BEARINGS

Grease lubricated bearings are lubricated at the factory. Regrease the bearings every 2,000 operating hours

or every three months, whichever comes first.

NOTE: When regreasing, there is a danger of impurities entering the bearing housing. The grease container, the greasing device, and the fittings must be clean.

To grease the bearings:

1. Remove relief plugs on the bearing end covers.

2. Insert grease through the grease fittings while the shaft is rotating, until grease appears through the relief plug holes.

3. Operate the unit for approximately 30 minutes with the relief holes open to prevent overgreasing. After 30 minutes, replace the relief plugs.

NOTE: The bearing temperatures usually rise after regreaseing due to an excess supply of grease. Temperatures will return to normal after the pump has run and purged the excess grease from the bearings. This usually takes two to four hours.

3420 IOM 8/09 35

Page 40

BEARING REMOVAL

Ball Bearings

A puller, such as the one shown in Figures 23 and 24, should be used. The puller bar must be square with the end of the shaft at all times in order to keep even pressure on the outer circumference of the bearing. The puller screw should be tightened steadily to enable the bearing to slide smoothly off the shaft. Do not damage the end of the shaft.

Fig. 23

Fig. 25

Fig. 26

Fig. 24

On the SX/MX units, the bearing housings slide off the bearings and the puller, such as the one shown in Figures 25 and 26, should be used. This type of puller applies force directly against the bearing itself. The puller bar must be square with the end of the shaft at all times and the puller screw should be tightened steadily to enable the bearings to slide smoothly off the shaft. Do not damage the end of the shaft.

Roller Bearings

1. Screw the adapter sleeve removal nut (furnished in the box of fittings which accompanied the pump) onto the adapter sleeves (item 521). Tightening the nut will "jack" the sleeves out from under the inner race of the bearings.

Fig. 27

2. Slide the adapter sleeves and bearings off of the shaft and protect them from contamination. Unscrew the adapter removal nut and store it for future use.

36 3420 IOM 8/09

Page 41

MAINTENANCE OF SHAFT SEALS

MECHANICAL SEALS

When mechanical seals are furnished, a manufacturers reference drawing is supplied with the data package. This drawing should be kept for future use when performing maintenance and adjusting the seal. The seal drawing will also specify required flush liquid and tapped connections. The seal and all the flush piping must be checked and installed as needed, prior to starting the pump.

The mechanical seal must have an appropriate seal

flush system. Failure to do so will result in excess heat generation and seal failure.

Leakage of process liquid may result in creating an

explosive atmosphere. Follow all pump and seal assembly procedures.

The life of a mechanical seal depends on various factors such as cleanliness of the liquid handled and its lubricating properties. Due to the diversity of the operating conditions it is, however, not possible to give definite indications as to its life.

! WARNING

Never operate the pump without liquid supplied to the mechanical seal. Running a mechanical seal dry, even for a few seconds, can cause seal damage and must be avoided. Physical injury can occur if the mechanical seal fails.

The mechanical seal used in an ATEX classified

environment must be properly certified.

Sealing systems that are not self purging or self

venting, such as plan 23, require manual venting prior to operation. Failure to do so will result in excess heat generation and seal failure.

PACKED STUFFING BOX

! WARNING

Lock out driver power to prevent accidental start-up and physical injury.

The stuffing box is not packed at the factory and must be packed properly before operating the pump. The packing is furnished in the box of fittings which accompanies the pump. The packing used must be suitable for the pumpage. Make sure the stuffing box is clean. Examine the shaft sleeve for wear or scoring, replace if necessary. Refer to Preparation for Start-up (p. 25) for packing installation instructions.

3420 IOM 8/09 37

Page 42

TROUBLESHOOTING

PROBLEM PROBABLE CAUSE REMEDY

No liquid delivered.

Pump not producing rated flow or head.

Pump starts then stops pumping.

Bearings run hot.

Pump is noisy or vibrates.

Excessive leakage from stuffing box/ seal chamber.

Motor requires excessive power.

Pump not primed.

Suction line clogged. Remove obstructions.

Impeller clogged with foreign material. Back flush pump to clean impeller.

Wrong direction of rotation.

Foot valve or suction pipe opening not submerged enough.

Suction lift too high. Shorten suction pipe.

Air leak thru gasket. Replace gasket.

Air leak thru stuffing box / seal chamber. Replace or readjust packing/mechanical seal.

Impeller partly clogged. Back flush pump to clean impeller.

Worn wear rings. Replace defective part as required.

Insufficient suction head.

Worn or broken impeller. Inspect and replace if necessary.

Improperly primed pump. Reprime pump.

Air or vapor pockets in suction line. Rearrange piping to eliminate air pockets.

Air leak in suction line. Repair (plug) leak.

Improper alignment. Re-align pump and driver.

Improper lubrication. Check lubricant for suitability and level.

Lube cooling. Check cooling system.

Improper pump/driver alignment. Align shafts.

Partly clogged impeller causing imbalance. Back-flush pump to clean impeller.

Broken or bent impeller or shaft. Replace as required.

Foundation not rigid.

Worn bearings. Replace.

Suction or discharge piping not anchored or properly supported.

Pump is cavitating. Locate and correct system problem.

Packing gland improperly adjusted. Tighten gland nuts.

Stuffing box improperly packed. Check packing and repack box.

Worn mechanical seal parts. Replace worn parts.

Shaft sleeve scored. Check lubrication and cooling lines.

Head lower than rating. Pumps too much liquid. Re-machine or replace as required.

Liquid heavier than expected. Check specific gravity and viscosity.

Stuffing packing too tight. Readjust packing. Replace if worn.

Rotating parts bind. Check internal wearing parts for proper clearances.

Reprime pump, check that pump and suction line are full of liquid.

Change rotation to concur with direction indicated by arrow on bearing housing or pump casing.

Consult factory for proper depth. Use baffle to eliminate vortices.

Ensure that suction line shutoff valve is fully open and line is unobstructed.

Tighten hold-down bolts of pump and motor or adjust stilts.

Anchor per Hydraulic Institute Standards Manaul recommendations.

38 3420 IOM 8/09

Page 43

DISASSEMBLY & REASSEMBLY

DISASSEMBLY.....................................39

Removal of Bearing Housings and Bearings ....................41

SX/MX Group .................................41

M Group ....................................44

L Group.....................................47

LDS and XL Group...............................50

Disassembly of Rotating Element .........................54

INSPECTION AND OVERHAUL...........................55

General .......................................55

Casing .......................................55

Parting Gasket ...................................55

Impeller.......................................55

Wear Rings .....................................60

Shaft ........................................67

Shaft Sleeves ....................................69

Bearing Housings..................................69

Bearings ......................................69

REASSEMBLY .....................................70

Bearing Housings and Bearings ..........................70

SX/MX Group .................................70

M Group ....................................71

L Group.....................................71

LDS & XL Group ...............................72

Installation of The Rotating Element........................73

DISASSEMBLY

! WARNING

Pump components can be heavy. Proper methods of lifting must be employed to avoid physical injury and/or equipment damage. Steel toed/safety shoes must be worn at all times.

! WARNING

The 3420 may handle hazardous and/or toxic fluids. Proper personal protective equipment should be worn. Precautions must be taken to prevent physical injury. The pumpage must be handled and disposed of in conformance with applicable environmental regulations.

NOTE: Before Disassembling the pump for overhaul, ensure all replacement parts are available.

! WARNING

Lock out power supply to driver to prevent accidental start-up and physical injury.

1. Shut off all valves controlling flow to and from the pump.

! WARNING

The operator must be aware of the pumpage and safety precautions to prevent physical injury.

2. Drain the liquid from the piping and flush the pump, if necessary.

3. Disconnect all auxiliary piping and tubing.

4. Remove the coupling guard. Refer to the Coupling Guard Installation and Disassembly Section in Appendix I.

5. Disconnect the coupling.

3420 IOM 8/09 39

Page 44

6. Remove the coupling guard endplate.

7. Oil Lubrication: Drain the oil from the bearing housings by removing the bearing housing drain plugs (item 358). Replace the plugs after the oil is drained. Remove the oiler.

NOTE: Oil analysis should be a part of a preventative maintenance program, and is helpful in determining a cause of a failure. Save the oil in a clean container for inspection.

8. Packing: Remove the gland nuts (355) and slide the glands (107) away from the stuffing boxes.

Conventional Mechanical Seal: Remove the gland nuts (355) and slide the gland, with the stationary seat, away from the seal chamber.

Cartridge Mechanical Seal: Replace the spacer clips on the mechanical seal sleeve. Loosen the set screws in the locking collar on the mechanical seal. Remove the gland nuts (355) and slide the mechanical seal away from the seal chamber.

9. Remove the casing parting nuts (425B).

10. Remove the dowel pins (469G).

11. Loosen the upper half casing (100) by using the casing jacking bolts (418).

12. Remove the upper half casing evenly using the lifting lugs. See Fig 28. Make sure adequate clearance is available to remove the upper half. See Table 6.

Table 6

Minimum Headroom

for U.H. Removal

Frame Pump Size

MX 18x20-20 34 (864)

M (Mod) 20x24-28 44 (1118)

- 18x20-24 38 (965)

L 24x30-32 45 (1143)

LDS

XXL 36x42-52 76 (1930)

! WARNING

Do not lift the entire pump using the lifting lugs. They are not designed to support the full weight of the casing. They may break and cause serious physical injury and severely damage the pump.

12x14-15 25 (635)

16x18-17h 31 (787)

16x18-30 41.25 (1048)

18x20-30 41.75 (1061)

20x24-24 37.75 (959)

20x24-30 42.5 (1080)

30x30-31 50.69 (1288)

30x30-38 53.25 (1353)

30x36-42 62 (1575)

20x30-42 70 (1778)

(From Suct C/L)

inches (mm)

Fig. 28

13. Exercise care to prevent the casing gasket from tearing.

40 3420 IOM 8/09

Page 45

Removal of the Bearing Housings and Bearings

A. SX/MX Group - 12x14-15, 16x18-17H, 18x20-20

Flood Oil, Radial

Fig. 29

Flood Oil, Thrust

3420 IOM 8/09 41

Fig. 30

Page 46

Grease, Radial

Fig. 31

Grease, Thrust

Fig. 32

42 3420 IOM 8/09

Page 47

SX/MX Group (Figs. 29-33)

1. Remove the eight bearing housing to casing capscrews (372U).

2. Place the sling in position, refer to Fig. 33. Adjust the sling tension to take weight off of the rotating element. Make sure all stationary parts of the rotating element are loose before the rotating element is removed. It is desirable to rotate the casing wearing

rings (127) 180° to disengage the tongue and groove locks.

3. Remove the element and place it on padded supports.

4. Slide the casing rings off the rotating element.

5. Scribe the coupling position on the shaft (122) and remove the coupling and the coupling key (400).

6. Remove eight bearing housing to bearing end cover capscrews (371C and 371D).

7. Remove the outboard (thrust) bearing housing (134) by sliding it over the thrust bearings (112).

8. Remove the coupling end bearing housing (166) and labyrinth seal (332A) together by sliding them over the radial bearing (168) and off the shaft.

9. Press the labyrinth seal out of the bearing housing from the inside with a suitablly sized arbor.

10. Straighten the tangs in the bearing lockwasher (382) and remove the bearing locknut (136) and lockwasher from the outboard (thrust) end of the shaft.

11. Remove the thrust and radial bearings using a bearing puller per the instructions in the Preventive Maintenance section, (Figures 25 and 26). Save the bearings for inspection.

Fig. 33

12. Slide the bearing end covers (109) and labyrinth seals (333A) off of the shaft. Press the labyrinth seals out of the end covers from the inside using a suitably sized arbor.

3420 IOM 8/09 43

Page 48

B. M Group - 16x18-30, 18x20-30, 20x24-24, 20x24-30, 20x24-28, 18x20-24

Ring Oil, Thrust

Fig. 34

Ring Oil, Radial

Fig. 35

44 3420 IOM 8/09

Page 49

Grease, Thrust

Fig. 36

Grease, Radial

3420 IOM 8/09 45

Fig. 37

Page 50

M Group (Figs. 34-37)

1. Loosen the set screw (222P) and slide the dust cover (123A) towards the coupling.

6. Scribe the coupling position on the shaft (122) and remove the coupling and the coupling key (400).

2. Remove the bearing cap hex nuts (425A) and the bearing caps (111A). Match-mark each bearing cap. They must be replaced on the same end and in the same position on the pump during reassembly.

NOTE: The casing and the bearing caps are machined as a matched set.

Failure to reassemble the pump with the bearing caps in the correct position could result in damage to the pump.

3. Place the sling in position, refer to Fig. 33. Adjust the sling tension to take weight off of the rotating element. Make sure all stationary parts of the rotating element are loose before the rotating element is removed. It is desirable to rotate the casing wearing rings (127), stuffing box bushings (125), and the

bearing housings (134A) 180° to disengage the tongue and groove locks.

4. Remove the element and place it on padded supports.

5. Slide the casing rings off the rotating element.

CAUTION

7. Unbolt and remove both bearing end covers (109A and 119A).

8. Oil Lubrication: Remove the oil rings (114) and the oil ring housings (515).

Grease Lubrication: Remove the oil ring housings (515).

9. Loosen the set screws (363B) in the oil throwers (248) and slide them toward the shaft sleeves (126).

10. Straighten the tangs in the lockwashers (382) and remove both bearing locknuts (136) and lockwashers.

11. Slide the oil ring sleeves (324/323 or 207/208) off of the shaft.

NOTE: On grease lubricated units, a grease shield (346A) is mounted on the oil ring sleeves (207 and

208).

12. Remove the bearings (112A and 168A) using the bearing puller shown in Figs. 23 and 24 and as documented in Section 5. Save the bearings for inspection.

13. Slide the bearing housings off of the shaft.

14. Slide the oil throwers off of the shaft.

46 3420 IOM 8/09

Page 51

C. L GROUP - 24X30-32

Ring Oil, Thrust

Fig. 38

Ring Oil, Radial

3420 IOM 8/09 47

Fig. 39

Page 52

Grease, Thrust

Fig. 40

Grease, Radial

Fig. 41

48 3420 IOM 8/09

Page 53

L Group (Figs. 38-41)

1. Oil Lubrication: Loosen the set screw (363B) in the dust cover (139) on the coupling end and slide it towards the coupling.

Grease Lubrication: Slide the deflector (123A) on the coupling end toward the coupling.

2. Remove the bearing cap hex nuts (425A) and the bearing cap (111A). Match-mark each bearing cap. They must be replaced on the same end and in the same position on the pump during reassembly.

Failure to reassemble the pump with the bearing caps in the correct position could result in damage to the pump.

CAUTION

5. Slide the casing rings off the rotating element.

6. Scribe the coupling position on the shaft (item 122) and remove the coupling and the coupling key (400).

7. Oil Lubrication: Slide the dust cover (139) off of the coupling end of the shaft.

Grease Lubrication: Slide the deflector (123A) off of the coupling end of the shaft.

8. Unbolt and remove both bearing end covers (109A and 119A).

9. Oil Lubrication: Remove the oil rings (114) and the oil ring housings (515).

10. Straighten the tangs in the lockwashers (382) and remove both bearing locknuts (136) and lockwashers.

NOTE: The casing and the bearing caps are machined as a matched set.

3. Place the sling in position, refer to Fig. 33 (p. 43). Adjust the sling tension to take weight off of the rotating element. Make sure all stationary parts of the rotating element are loose before the rotating element is removed. It is desirable to rotate the casing wearing rings (127) , stuffing box bushings (125), and the

bearing housings (134 and 134A) 180 ° to disengage the tongue and groove locks.

4. Remove the element and place it on padded supports.

11. Oil Lubrication: Slide the oil ring sleeves (324 and

323) off of the shaft (122).

Grease Lubrication: Remove the grease shield (346A) and the oil ring sleeves (207 and 208).

12. To remove the bearings (409 and 410), refer to the instruction in Section 5.

13. Slide the bearing housings off of the shaft.

14. Oil Lubrication: Loosen the set screws (363B) in the oil throwers (248) and slide the oil throwers off of the shaft.

Grease Lubrication: Slide the deflectors (123) off of the shaft.

3420 IOM 8/09 49

Page 54

D. LDS, XL, XXL Group - 30x30-31, 30x30-38, 30x36-42, 20x30-42, 36x42-52

(333 Opt)

LDS Ring Oil, Thrust

Fig. 42

(332 Opt)

(333 Opt)

LDS Ring Oil, Radial

Fig. 43

50 3420 IOM 8/09

Page 55

(333 Opt)

LDS Grease, Thrust

Fig. 44

(333 Opt)

LDS Grease, Radial

3420 IOM 8/09 51

Fig. 45

Page 56

(333 Opt)

XL Ring Oil, Thrust

Fig. 46

(332 Opt)

(333 Opt)

XL Ring Oil, Radial

Fig. 47

52 3420 IOM 8/09

Page 57

(333 Opt)

XL Grease, Thrust

Fig. 48

(332 Opt)

(333 Opt)

XL Grease, Radial

3420 IOM 8/09 53

Fig. 49

Page 58

LDS, XL, and XXL Group

1. Oil Lubrication: Loosen the set screw (364) in the dust cover (123A) on the coupling end and slide it towards the coupling.

this time, the inboard bearing end covers can be removed from the bearing housings in order to replace the end cover to housing gasket (360N or 360B).

Grease Lubrication: Slide the deflector (332) on the coupling end toward the coupling.

(See Step 15 for optional labyrinth seals).

2. Remove the bearing cap hex nuts (425A) and the bearing cap (111). Match-mark each bearing cap. They must be replaced on the same end and in the same position on the pump during reassembly.

Failure to reassemble the pump with the bearing caps in the correct position could result in damage to the pump.

NOTE: The casing and the bearing caps are machined as a matched set.

180° to disengage the tongue and groove locks.

4. Remove the element and place it on padded supports.

5. Slide both casing rings off the rotating element.

6. Scribe the coupling position on the shaft (item 122) and remove the coupling and the coupling key (400).

7. Oil Lubrication: Slide the dust cover (123A) off of the coucpling end of the shaft.

(See Step 15 for optional labyrinthh seals).

Grease Lubrication: Slide the deflector (332) off of the cou;ing end of the shaft.

8. Unbolt and remove both bearing end covers (109A and 119A).

CAUTION

14. Oil Lubrication: Loosen the set screws (364) in the oil throwers (248) and slide the oil throwers off of the shaft.

Grease Lubrication: Slide the deflectors (333) off of the shaft.

(See Step 15 for optional laby seals).

15. With labyrinth seal option (332 Opt, 333 Opt), see Paragraphs 8, 9, 12 for SX/MX Group bearing housing disassembly.

DISASSEMBLY OF THE ROTATING ELEMENT

1. Conventional Mechanical Seals: Slide the gland, with the stationary seats in place, off of the shaft. Use care to prevent damage to the seal faces.

Cartridge Mechanical Seals: Slide the mechanical seal (383) off of the shaft.

Packed Stuffing Box: Slide the glands (107) off of the shaft. Remove the packing (106), lantern rings (105), and stuffing box bushings (125).

2. Loosen the set screws (222B) in the sleeve nuts (124). Using a spanner or strap wrench, remove the sleeve nuts. Discard the sleeve O-rings (497).

NOTE: One sleeve has right hand threads and one has left hand threads. The nuts tighten against the pump’s rotation.

3. Smoothe the shaft (122) with a fine emery cloth so that the sleeves will not bind upon removal.

4. Carefully slide the sleeves (126) off of the shaft. Discard the impeller O-rings (412A).

NOTE: If the pump has conventional mechanical seals, the sleeves will still have the stuffing box bushings and the rotary elements of the mechanical seals still mounted.

9. Oil Lubrication: Remove the oil rings (114).

10. Straighten the tangs in the lockwashers (382) and remove both bearing locknuts (136) and lockwashers.

11. Oil Lubrication: Slide the oil ring sleeves (324 and

323) off of the shaft (122).

Grease Lubrication: Remove the grease shield (346A) and the oil ring sleeves (207 and 208).

12. To remove the bearings (409 and 410), refer the instruction in Section 5.

13. Slide the bearing housings and the inboard bearing end covers (109B and 119B) off of the shaft. If desired, at

5. Lightly scribe a line on the shaft at the impeller hub (101). This will determine the proper position of the impeller on the shaft for reassembly.

6. Press or drive the impeller off of the shaft.

! WARNING

Do not damage the impeller hub surface. This is an O-ring sealing surface. Damage to the hub surface could result in a failed seal. A failed seal could result in serious physical injury.

7. Remove the impeller key (178).

54 3420 IOM 8/09

Page 59

INSPECTION AND OVERHAUL

The model 3420 parts must be inspected to the following criteria before they are reassembled to ensure the pump will run properly. Any part not meeting the required criteria should be replaced.

GENERAL

Clean all parts before assembly. This is especially important at all O-ring grooves, threads, and bearing areas. Remove any burrs. Replace all o-rings. Inspect labyrinth seals for rubbing and wear. Replace as required. Replace all lip (grease) seals. Inspect the oil rings. Replace if worn excessively. Inspect and replace as necessary the mechanical seal and/or its components per the manufacturer’s instructions.

CASING

The casing (100) should be inspected for excessive wear or pitting, particularly at the cutwater areas. It should be repaired or replaced if the wear or pitting exceeds 1/8 in depth. The parting gasket surfaces on both the upper and lower halves should be cleaned and inspected for any irregularities.

PARTING GASKET

Inspect the parting flange gaskets (351S and 351D) and replace if torn or otherwise damaged. The recommended gasket materials are Garlock Blue Gard 3000™ or Armstrong N8090. See Table 8 for the correct gasket thickness. Use the upper half casing as a template. Strike the sheet with a soft face hammer. This will cut the gasket against the edge of the casing.

The gasket must cover the entire surface of the parting flange. Pay special attention to the areas around the wear ring locks.

NOTE: If the area around the wear ring locks are not properly sealed, leakage will occur from the high to the low pressure zones in the pump. This will result in lost performance and efficiency.

For pumps with mechanical seals, cut the gasket approximately ¼ in (6.35 mm) long at the face of the stuffing box. This excess then should be trimmed to a perfect fit after the pump casing is assembled.

NOTE: SX and MX pump parting flange gaskets are supplied with pre-cut outer edges and fastener holes.

IMPELLER

Inspect the impeller (101) and replace if there is excessive wear due to erosion or corrosion, particularly at the leading and trailing edges of the impeller vanes. If the impeller needs to be trimmed, it should be balanced to the tolerances in Table 7. Determine whether a single plane or a two plane spin balance is required by calculating the diameter to width ratio of the trimmed impeller. Imbalance can be corrected by grinding on the outside of the shrouds near the impeller periphery. The impeller bore diameter should be measured to ensure a proper fit on the shaft. Refer to Table 8 for the correct tolerances. Contact your Goulds representative for special requirements on Lo-Pulse impellers or rotating elements.

Take care not to chip any internal coatings that may have been applied to the casing’s internal passages. If the casing has an internal coating, it may be easier to cut the gasket using a knife.

CAUTION

3420 IOM 8/09 55

Page 60

Table 7

Pump

Group Size

Impeller Drawing

Pattern

Max Speed (rpm)

SX 12x14-15 D06911A 69117 1800 0.009 14.29 0.0045 7.14

D07551A 69407 1800 0.009 14.29 0.0045 7.14

16x18-17H

MX 18x20-20 1200 0.013 20.64 0.0065 10.32

16x18-30

16x18-30G

16x18-30H

18x20-30

20x24-24

20x24-30

20x24-28

M (mod)

—

20x24-28G

20x24-28H D01539A 58719 900 0.018 28.58 0.009 14.29

20x24-28N

18x20-24

18x20-24G

18x20-24N

24x30-32

24x30-32G

24x30-323H

24x30-32N

D06983A 69171 1200 0.013 20.64 0.0065 10.32

D07603A 69686 1200 0.013 20.64 0.0065 10.32

D00038A 54341 1200 0.013 20.64 0.0065 10.32

D00039A 55147 1200 0.013 20.64 0.0065 10.32

113-13 57068 1200 0.013 20.64 0.0065 10.32

D00016A 57068 1200 0.013 20.64 0.0065 10.32

112-62 57024 1200 0.013 20.64 0.0065 10.32

D00321A 57024 1200 0.013 20.64 0.0065 10.32

250-2 54342 1200 0.013 20.64 0.0065 10.32

252-121 55148 1200 0.013 20.64 0.0065 10.32

253-6 55098 1200 0.013 20.64 0.0065 10.32

253-12 55197 1200 0.013 20.64 0.0065 10.32

254-105 55442 1200 0.013 20.64 0.0065 10.32

257-89 55796 1200 0.013 20.64 0.0065 10.32

D01533A 58714 900 0.018 28.58 0.009 14.29

D01536A 58717 900 0.018 28.58 0.009 14.29

D00225A 57692 900 0.018 28.58 0.009 14.29

D01109A 58337 900 0.018 28.58 0.009 14.29

D02282A 58954 900 0.018 28.58 0.009 14.29

D02283A 58955 900 0.018 28.58 0.009 14.29

D02299A 58976 900 0.018 28.58 0.009 14.29

D02300A 58977 900 0.018 28.58 0.009 14.29

D01532A 58713 1200 0.013 20.64 0.0065 14.29

D01535A 58716 1200 0.013 20.64 0.0065 14.29

D02280A 58952 1200 0.013 20.64 0.0065 14.29

D02281A 58953 1200 0.013 20.64 0.0065 14.29

D02301A 58978 1200 0.013 20.64 0.0065 14.29

D02302A 58979 1200 0.013 20.64 0.0065 14.29

265-84 56879 900 0.018 28.58 0.009 14.29

262-25 56529 900 0.018 28.58 0.009 14.29

267-21 56884 900 0.018 28.58 0.009 14.29

D00013A 57618 900 0.018 28.58 0.009 14.29

267-27 56890 700 0.024 38.1 0.012 19.05

D00014A 57643 700 0.024 38.1 0.012 19.05

265-82 56848 700 0.024 38.1 0.012 19.05

262-22 56528 700 0.024 38.1 0.012 19.05

Static D/b⎮6 G2.5

X/N

oz. in./lb

per plane

g mm/kg

per plane

Dynamic D/b⎮6

G2.5 X/N

oz. in./lb

per plane

g mm/kg

per plane

56 3420 IOM 8/09

Page 61

Table 7

Pump

Group Size

Impeller Drawing

Pattern

Max Speed (rpm)

30x30-31

30x30-31G D05540A 68567 900 0.018 28.58 0.009 14.29

LDS

XXL 36x42-52 E02707A IE922 600 0.0304 48.26 0.0152 24.13

30x30-38

30x30-38G

30x30-38N

30x36-42

30x36-42G

30x36-42H

30x36-42N D07751A 69830 600 0.0304 48.26 0.0152 24.13

20X30-42 D11284A IE994 600 0.0304 48.26 0.0152 24.13

D02370A 63131 700 0.024 38.1 0.012 19.05

D02414A 63030 700 0.024 38.1 0.012 19.05

D02257A 57783 700 0.024 38.1 0.012 19.05

D02259 58685 700 0.024 38.1 0.012 19.05

D02284A 58596 700 0.024 38.1 0.012 19.05

D02285A 58597 700 0.024 38.1 0.012 19.05

D02297A 58973 700 0.024 38.1 0.012 19.05

D02298A 58974 700 0.024 38.1 0.012 19.05

D01537A 58718 700 0.024 38.1 0.012 19.05

D01534A 58715 700 0.024 38.1 0.012 19.05

D00147A 57644 700 0.024 38.1 0.012 19.05

267-56 57038 700 0.024 38.1 0.012 19.05

D02286A 58958 700 0.024 38.1 0.012 19.05

D02287A 58959 700 0.024 38.1 0.012 19.05

267-57 57039 600 0.0304 48.26 0.0152 24.13

272-80 57039 600 0.0304 48.26 0.0152 24.13

Static D/b⎮6 G2.5 X/N

oz. in./lb

per plane

g mm/kg

per plane

Dynamic D/b⎮6 G2.5

X/N

oz. in./lb

per plane

g mm/kg

per plane

3420 IOM 8/09 57

Page 62

Table 8 (inches)

Group Sizes

Modified)

(

— 18x24-24

L 24x30-32

LDS

XXL 36x42-52

12x14-15

16x18-17H

18x20-20

16x18-30

18x20-30 5.548 5.498 .050 5.125 5.124 .001

20x24-24 5.553 5.496 .057 5.126 5.123 .003

20x24-30

20x24-28

30x30-31 7.560 7.500 .060 6.875 6.874 .001

30x30-38 7.565 7.498 .067 6.876 6.873 .003

30x36-42

20x30-42

S.B.

Bushing

I.D.

3420

4.191/4.195 3425

4.191/4.195

3420 3420 3420 4.5276 4.5271 .0005

4.932/4.936 4.875/4.873 .057/.063 4.5289 4.5262 .0027

3425 3425 3425

4.978/4.982 4.921/4.919 .057/.063

5.548 5.498 .050 5.125 5.124 .001

5.553 5.496 .057 5.126 5.123 .003

5.050 5.000 .050 4.375 4.374 .001

5.055 4.998 .057 4.376 4.373 .003

6.552 6.492 .060 6.125 6.124 .001

6.557 6.490 .067 6.126 6.123 .003

8.060

8.065

7.560

7.565

9.060

9.065

Shaft

Sleeve

O.D.

3420 3420

4.125/4.123 .066/.072 3.5433 3.5428 .0005

3425 3425 3.5447 3.5420 .0027

4.134/4.132 .057/.063

8.00

7.998

7.500

7.498

9.000

8.998

Dia.

Clearance

.060 .067

Impeller Hub I.D.

7.250

7.251

6.875

6.876

8.250

8.251

Impeller

Shaft O.D.

7.249

7.248

6.874

6.873

8.248

8.249

Tol.

.001 .003

Parting

Flange

Gasket

Thk.

1/32

1/64

1/32

1/64

1/32

58 3420 IOM 8/09

Page 63

Table 8 (mm)

Group Sizes

M (Modified) 20x24-28

— 18x24-24

L 24x30-32

LDS

XXL

12x14-15

16x18-17H

18x20-20

16x18-30

18x20-30 140.92 139.65 1.27 130.18 130.15 .0254

20x24-24 141.05 139.60 1.45 130.20 130.12 .0762

20x24-30

30x30-31 192.02 190.50 1.52 174.63 174.60 .0254

30x30-38 192.15 190.45 1.70 174.65 174.57 .0762

30x36-42

20x30-42

36x42-52

S.B.

Bushing

I.D.

3420

106.45/.55 3425

106.45/.55

3420 3420 3420

125.27/.37 123.83/.77 1.45/1.60 115.00 114.99 .0127

3425 3425 3425 115.03 114.97 .0686

126.44/.54 124.99/.94 1.45/1.60

140.92 139.65 1.27 130.18 130.15 .0254

141.05 139.60 1.45 130.20 130.12 .0762

128.27 139.65 1.27 111.13 111.10 .0254

128.49 139.60 1.45 111.15 111.07 .0762

166.42 164.90 1.52 155.58 155.55 .0254

166.55 164.85 1.70 155.60 155.52 .0762

204.72 203.20 1.52 184.15 184.12 .0254

204.85 203.15 1.70 184.18 184.10 .0762

192.02 190.50 1.52 174.63 174.60 0.0254 0.794

192.15 190.45 1.70 174.65 174.57 0.0762 0.794

230.12 228.60 1.52 209.55 209.50 0.0254 0.794

230.25 228.55 1.70 209.58 209.52 0.0762 0.794

Shaft

Sleeve

O.D.

3420

104.78/.72 3425

105.000/104.9 5

Dia.

Clearance

3420

1.68/1.83 3425

1.45/1.60

Impeller

Hub I.D.

90.00

90.04

Impeller

Shaft

O.D.

89.99

89.97

Tol.

.0127 .0686

Parting

Flange Gasket

Thk.

.794

.397

3420 IOM 8/09 59

Page 64

WEAR RINGS

The clearance between the casing wear rings (127) and the impeller wear rings (142) is shown in. When hydraulic performance is reduced substantially, the casing and/or impeller wear rings should be replaced.

Table 9 (inches)

Group

Impeller

Size

12x14-15

16x18-17H

MX 18x20-20

16x18-30

16x18-30H

16x18-30G

18x20-30

20x24-24

20x24-30

Material Vanes

Iron & Bronze 7

Steel 7

Iron & Bronze 7

Steel 7

Iron & Bronze 5 & 6

Steel 5 & 6

Iron & Bronze 5

Steel 5

Iron & Bronze 7

Steel 7

Iron & Bronze 7

Steel 7

Iron & Bronze 5

Steel 5

Iron & Bronze 5 & 6

Steel 5 & 6

Iron & Bronze5HIGH

Steel

Iron & Bronze5LOW

Steel

RPM

HIGH

RPM

LOW

RPM

Standard Impeller

and Casing Wearing

Rings (Fig. 51)

Impeller Ring (A)

11.214 11.227 .013 11.214 11.227 .013

11.212 11.229 .017 11.212 11.229 .017

11.214 11.237 .023 11.224 11.237 .023

11.212 11.239 .027 11.222 11.239 .027

13.970 13.983 .013 13.970 13.983 .013

13.968 13.985 .017 13.968 13.985 .017

13.970 13.993 .023 13.970 13.993 .023

13.968 13.995 .027 13.968 13.995 .027

16.529 16.542 .013 16.529 16.542 .013

16.527 16.544 .017 16.527 16.544 .017

16.529 17.373 .023 16.529 17.373 .023

16.527 17.376 .027 16.527 17.376 .027

17.355 17.383 .018 17.355 17.383 .018

17.352 17.386 .024 17.352 17.386 .024

17.355 17 .373.028 17.355 17.373 .028

17.352 17.376 .034 17.352 17.376 .034

17.355 17.383 .018 17.355 17.383 .018

17.352 17.386 .024 17.352 17.386 .024

17.355 17.373 .028 17.355 17.373 .028

17.352 17.376 .034 17.352 17.376 .034

17.355 17.383 .018 17.355 17.383 .018

17.352 17.886 .024 17.352 17.886 .024

17.355 17.383 .028 17.355 17.383 .028

17.352 17.386 .034 17.352 17.386 .034

19.528 19.548 .020 18.595 18.615 .020

19.525 19.551 .026 18.592 18.618 .026

19.528 19.558 .030 18.595 18.625 .030

19.525 19.561 .036 18.592 18.628 .036

18.345 18.365 .020 18.345 18.365 .020

18.342 18.368 .026 18.342 18.368 .026

18.345 18.375 .030 18.345 18.375 .030

18.342 18.378 .036 18.342 18.378 .036

19.528 19.548 .020 18.595 18.615 .020

19.525 19.551 .026 18.592 18.618 .026

19.528 19.548 .030 18.595 18.625 .030

19.525 19.551 .036 18.592 18.628 .036

21.903 19.558 .022 20.968 20.990 .022

21.900 19.561 .028 20.965 20.993 .028

21.903 21.928 .032 20.968 21.000 .032

21.900 21.928 .038 20.965 21.003 .038

Casing

Ring

Diameter

Clearance

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

Casing

Ring

Diameter

Clearance

Length

(E)

.38 8°

.38

.50

.87

.38

.62

..62

.62

.38

.38 8°

Angle (F)

8°

60 3420 IOM 8/09

Page 65

Table 9 (inches) (con't)

Group

Modified

Impeller

Size

20x24-28

20x24-28H

20x24-28N

20x24-28g

18x20-24

18x20-24G

18x20-24N

24x30-32

24x30-32N

24x30-32H

24x30-32G

Material Vanes

Iron &

Bronze

Steel 6&7

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 6

6&7

Standard Impeller and

Casing Wearing Rings

(Fig. 51)

Impeller Ring (A)

18.480 18.500 .020 18.480 18.500 .020

18.477 18.503 .026 18.477 18.503 .026

18.470 18.500 .030 18.470 18.500 .030

18.477 18.530 .036 18.477 18.503 .036

19.538 19.558 .020 19.538 19.558 .020

19.535 19.561 .026 19.535 19.561 .026

19.528 19.558 .030 19.528 19.558 .030

19.525 19.561 .036 19.525 19.561 .036

18.980 19.000 .020 18.980 19.000 .020

18.977 19.003 .026 18.977 19.003 .026

18.980 19.000 .020 18.980 19.000 .020

18.977 19.003 .026 18.977 19.003 .026

17.607 17.625 .018 17.607 17.625 .018

17.604 17.628 .024 17.604 17.628 .024

17.607 17.635 .028 17.635 17.635 .028

17.604 17.638 .034 17.638 17.638 .034

15.492 15.508 .016 15.492 15.508 .016 .38

15.489 15.511 .022 15.489 15.511 .022

15.482 15.508 .026 15.492 15.508 .016 .38

15.479 15.511 .032 15.489 15.511 .022

14.734 14.750 .016 14.734 15.508 .016 .38

14.731 14.753 .022 14.731 15.511 .022

14.724 14.750 .026 14.724 14.750 .026 .38

14.721 14.753 .032 14.721 14.753 .032

15.984 16.000 .016 15.984 16.000 .016 .38

15.981 16.003 .022 15.981 16.003 .022

15.974 16.000 .026 15.974 16.000 .026 .38

15.971 16.003 .032 15.971 16.003 .032

23.707 23.731 .024 23.707 23.731 .024

23.702 23.734 .032 23.702 23.734 .032

23.707 23.741 .034 23.707 23.741 .034

23.702 23.744 .042 23.702 23.744 .042

23.707 23.731 .024 23.707 23.730 .024

23.702 23.734 .032 23.702 23.734 .032

23.707 23741 .034 23.707 23.741 .034

23.702 23.744 .042 23.702 23.744 .042

21.959 21.981 .022 21.959 21.981 .022

21.956 21.984 .028 21.956 21.984 .028

21.959 21.991 .032 21.959 21.991 .032

21.956 21.994 .038 21.956 21.994 .038

21.959 21.981 .022 21.959 21.981 .022

21.956 21.984 .028 21.956 21.984 .028

21.959 21.991 .032 21.959 21.991 .032

21.956 21.994 .038 21.956 21.994 .038

Casing

Ring

Diameter

Clearance

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

Casing

Ring

Diameter

Clearance

Length

Angle

(E)

.38 8°

.50 8°

(F)

8°

3420 IOM 8/09 61

Page 66

Table 9 (inches) (con't)

Group

LDS

XXL 36x42-52

Impeller

Size

30x30-31

30x30-31G

30x30-38

30x30-38G

30x30-38N

30x36-42

30x36-42G

30x36-42H

30x36-42N

20x30-42

Material Vanes

Iron & Bronze

Steel 7

Iron & Bronze 5

Steel 5

Iron & Bronze 7

Steel 7

Iron & Bronze 6

Steel 6

Iron & Bronze 5

Steel 5

Iron & Bronze 5

Steel 5

Iron & Bronze 6&7

Steel 6&7

Iron & Bronze 5

Steel 5

Iron & Bronze 7

Steel 7

Iron & Bronze 5

Steel 5

Iron & Bronze 6

Steel 6

Iron & Bronze 5

Steel 5

Standard Impeller and

Casing Wearing Rings

(Fig. 51)

Impeller Ring (A)

23.382 23.406 .024 23.382 23.406 .024

23.378 23.410 .032 23.378 23.410 .032

23.372 23.406 .034 23.372 23.406 .034

23.368 23.410 .042 23.368 23.410 .042

23.382 23.406 .024 23.385 23.406 .024

23.378 23.410 .032 23.378 23.410 .032

23.372 23.406 .034 23.372 23.406 .034

23.368 23.410 .042 23.368 23.410 .042

20.728 20.750 .022 2.728 20.750 .022

20.725 20.753 .028 20.725 20.753 .028

20.718 20.750 .032 20.718 50.750 .032

20.715 20.753 .038 20.715 20.753 .038

24.286 24.312 .026 24.286 24.312 .026

24.282 24.316 .034 24.282 24.316 .034

24.276 24.312 .036 24.276 24.312 .036

24.272 24.316 .044 24.272 24.316 .044

24.286 24.312 .026 24.286 24.312 .026

24.282 24.316 .034 24.282 24.316 .034

24.276 24.312 .036 24.276 24.312 .036

24.272 24.316 .044 24.272 24.316 .044

24.974 25.000 .026 24.974 25.000 .026

24.970 25.004 .034 24.970 25.004 .034

24.964 25.000 .036 24.964 25.000 .036

24.960 25.004 .044 24.960 25.004 .044

26.978 27.000 .022 26.978 27.000 .022

26.975 27.003 .028 26.975 27.003 .028

26.968 27.000 .032 26.968 27.000 .032

26.965 27.003 .038 26.965 27.003 .038

25.726 25.750 .024 25.726 25.750 .024

25.722 25.754 .032 25.722 25.754 .032

25.716 25.750 .034 25.716 25.750 .034

25.712 25.754 .042 25.712 25.754 .042

28.978 29.000 .022 28.978 29.000 .022

28.975 29.003 .028 28.975 29.003 .028

28.968 29.000 .032 28.968 29.000 .032

28.965 29.003 .038 28.965 29.003 .038

27.978 28.000 .022 27.978 28.000 .022

27.975 28.003 .028 27.975 28.003 .028

27.968 28.000 .032 27.968 28.000 .032

27.965 28.003 .038 27.965 28.003 .038

20.849 20.878 .032

20.846 20.874 .025

20.842 20.878 .038

20.840 20.874 .032

33.470 33.523 .057

33.474 33.527 .049

33.590 33.523 .067

33.585 33.527 .058

Casing

Ring

Diameter

Clearance

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

N/A N/A N/A N/A N/A

Casing

Ring

Diameter

Clearance

Length

(E)

.38 8°

2.25 8°

.38 8°

.50 8°

.38 8°

Angle

(F)

62 3420 IOM 8/09

Page 67

Table 9 (mm)

Group

Impeller

12x14-15

16x18-17H

MX 18x20-20

16x18-30

16x18-30H

16x18-30G

18x20-30

20x24-24

20x24-30

Size

Material Vanes

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5 & 6

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5 & 6

Iron &

Bronze

Steel

Iron &

Bronze

Steel

5&6

HIGH

RPM

HIGH

RPM

LOW

RPM

LOW

RPM

Standard Impeller and

Casing Wearing Rings

(Fig. 51)

Impeller Ring (A)

284.84 285.17 0.33 284.84 285.17 0.33

284.78 285.22 0.43 284.78 285.22 0.43

284.84 285.42 0.58 285.09 285.42 0.58

284.78 285.47 0.69 285.04 285.47 0.69

354.84 355.17 0.33 354.84 355.17 0.33

354.79 355.22 0.43 354.79 355.22 0.43

354.84 355.42 0.58 354.84 355.42 0.58

354.79 355.47 0.69 354.79 355.47 0.69

419.84 420.17 0.33 419.84 420.17 0.33

419.79 420.22 0.43 419.79 420.22 0.43

419.84 441.27 0.58 419.84 441.27 0.58

419.79 441.35 0.69 419.79 441.35 0.69

440.82 441.53 0.46 440.82 441.53 0.46

440.74 441.60 0.61 440.74 441.60 0.61

440.82 441.27 0.71 440.82 441.27 0.71

440.74 441.35 0.86 440.74 441.35 0.86

440.82 441.53 0.46 440.82 441.53 0.46

440.74 441.60 0.61 440.74 441.60 0.61

440.82 441.27 0.71 440.82 441.27 0.71

440.74 441.35 0.86 440.74 441.35 0.86

440.82 441.53 0.46 440.82 441.53 0.46

440.74 454.30 0.61 440.74 454.30 0.61

440.82 441.53 0.71 440.82 441.53 0.71

440.74 441.60 0.86 440.74 441.60 0.86

496.01 496.52 0.51 472.31 472.82 0.51

495.94 496.60 0.66 472.24 472.90 0.66

496.01 496.77 0.76 472.31 473.08 0.76

495.94 496.85 0.91 472.24 473.15 0.91

495.96 466.47 0.51 465.96 466.47 0.51

465.89 466.55 0.66 465.89 466.55 0.66

465.96 466.73 0.76 465.96 466.73 0.76

465.89 466.80 0.91 465.89 466.80 0.91

496.01 496.52 0.51 472.31 472.82 0.51

495.94 496.60 0.66 472.24 472.90 0.66

496.01 496.52 0.51 472.31 473.08 0.76

495.94 496.60 0.66 472.24 473.15 0.91

556.34 556.97 0.64 532.59 533.15 0.56

556.26 556.90 0.64 532.51 533.22 0.71

556.34 556.97 0.64 532.59 533.40 0.81

556.26 556.90 0.64 532.51 533.48 0.97

Casing

Ring

Diameter

Clearance

(B)

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

Casing

Ring

Diameter

Clearance

Length

(E)

9.65 8°

12.70 8°

22.10 8°

9.65 8°

15.75 8°

9.65 8°

Angle

(F)

3420 IOM 8/09 63

Page 68

Table 9 (mm)

Group

Modified

Impeller

Size

20x24-28

20x24-28H

20x24-28N

20x24-28G

18X20-24

18X20-24G

18X20-24N

24x30-32

24x30-32N

24x30-32H

24x30-32G

Material Vanes

Iron &

Bronze

Steel 6 & 7

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 6

6&7

Standard Impeller and Casing Wearing Rings

(Fig. 51)

Impeller Ring (A)

469.39 469.90 0.51 469.39 469.90 0.51

469.32 469.98 0.66 469.32 469.98 0.66

469.14 469.90 0.76 469.14 469.90 0.76

469.32 470.66 0.91 469.32 469.98 0.91

496.27 496.77 0.51 496.27 496.77 0.51

496.19 496.85 0.66 496.19 496.85 0.66

496.01 496.77 0.76 496.01 496.77 0.76

495.94 496.85 0.91 495.94 496.85 0.91

482.09 482.60 0.51 482.09 482.60 0.51

482.02 482.68 0.66 482.02 482.68 0.66

482.09 482.60 0.51 482.09 482.60 0.51

482.02 482.68 0.66 482.02 482.68 0.66

447.22 447.68 0.46 447.22 47.68 0.46

447.14 447.75 0.61 447.14 447.75 0.61

447.22 447.93 0.71 447.93 447.93 0.71

447.14 448.01 0.86 448.01 448.01 0.86

393.50 393.90 0.41 393.50 393.90 0.41

393.42 393.98 0.56 393.42 393.98 0.56

393.24 393.90 0.66 393.50 393.90 0.41

393.17 393.98 0.81 393.42 393.98 0.56

374.24 374.65 0.41 374.24 393.90 0.41

374.17 374.73 0.56 374.17 393.98 0.56

373.99 374.65 0.66 373.99 374.65 0.66

373.91 374.73 0.81 373.91 374.73 0.81

405.99 406.40 0.41 405.99 406.40 0.41

405.92 406.48 0.56 405.92 406.48 0.56

405.74 406.40 0.66 405.74 406.40 0.66

405.66 406.48 0.81 405.66 406.48 0.81

602.16 602.77 0.61 602.16 602.77 0.61

602.03 602.84 0.81 602.03 602.84 0.81

602.16 552.22 0.86 602.16 552.22 0.86

602.03 552.30 0.61 602.03 552.30 1.07

602.16 602.77 0.61 602.16 602.74 0.61

602.03 602.84 0.81 602.03 602.84 0.81

602.16 552.22 0.86 602.16 552.22 0.86

602.03 552.30 1.07 602.03 552.30 1.07

557.76 558.32 0.56 557.76 558.32 0.56

557.68 558.39 0.71 557.68 558.39 0.71

557.76 558.57 0.81 557.76 558.57 0.81

557.68 558.65 0.97 557.68 558.65 0.97

557.76 558.32 0.56 557.76 558.32 0.56

557.68 558.39 0.71 557.68 558.39 0.71

557.76 558.57 0.81 557.76 558.57 0.81

557.68 558.65 0.97 557.68 558.65 0.97

Casing

Ring

Diameter

Clearance

(B)

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

Casing

Ring

Diameter

Clearance

Length

(E)

9.65 8°

12.70 8°

Angle

(F)

64 3420 IOM 8/09

Page 69

Table 9 (mm) (cont'd)

Impeller

Size

30x30-31

30x30-31G

30x30-38

30x30-38G

30x30-38N

30x36-42

30x36-42G

30x36-42H

30x36-42N

20X30-42

Group

LDS

XXL 36x42-52

Material Vanes

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6 & 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 7

Iron &

Bronze

Steel 5

Iron &

Bronze

Steel 6

Iron &

Bronze

Steel 5

6&7

Standard Impeller and

Casing Wearing Rings

(Fig. 51)

Impeller Ring (A)

593.90 594.51 0.61 593.90 594.51 0.61

593.80 594.61 0.81 593.80 594.61 0.81

593.65 594.51 .086 593.65 594.51 0.86

593.55 594.61 1.07 593.55 594.61 1.07

593.90 594.51 0.61 593.90 594.51 0.61

593.80 594.61 0.81 593.80 594.61 0.81

593.65 594.51 0.86 593.65 594.51 0.86

593.55 594.61 1.07 593.55 594.61 1.07

526.49 527.05 0.56 69.29 527.05 0.56

526.42 527.13 0.71 526.42 527.13 0.71

526.24 527.05 0.81 526.24 1289.05 0.81

526.16 527.13 0.97 526.16 527.13 0.97

616.86 617.52 0.66 616.86 617.52 0.66

616.76 617.63 0.86 616.76 617.63 0.86

616.61 617.52 0.91 616.61 617.52 0.91

616.51 617.63 1.12 616.51 617.63 1.12

616.86 617.52 0.66 616.86 617.52 0.66

616.76 617.63 0.86 616.76 617.63 0.86

616.61 617.52 0.91 616.61 617.52 0.91

616.51 617.63 1.12 616.51 617.63 1.12

634.34 635.00 0.66 634.34 635.00 0.66

634.24 635.10 0.86 634.24 635.10 0.86

634.09 635.00 0.91 634.09 635.00 0.91

633.98 635.10 1.12 633.98 635.10 1.12

685.24 685.80 0.56 685.24 685.80 0.56

685.17 685.88 0.71 685.17 685.88 0.71

684.99 685.80 .081 684.99 685.80 0.81

684.91 685.88 0.97 684.91 685.88 0.97

653.44 654.05 0.61 653.44 654.05 0.61

653.34 654.15 0.81 653.34 654.15 0.81

653.19 654.05 0.86 653.19 654.05 0.86

653.08 654.15 1.07 653.08 654.15 1.07

736.04 736.60 0.56 736.04 736.60 0.56

735.97 736.68 0.71 735.97 736.68 0.71

735.79 736.60 0.81 735.79 736.60 0.81

735.71 736.68 0.97 735.71 736.68 0.97

710.64 711.20 0.56 710.64 711.20 0.56

710.57 711.28 0.71 710.57 711.28 0.71

710.39 711.20 0.81 710.39 711.20 0.81

710.31 711.28 0.97 710.31 711.28 0.97

529.56

529.49 530.20 0.64

529.39 530.30 0.97

529.34 530.20 0.81

850.14 851.48 1.45

850.24 851.59 1.24

853.19 851.48 1.70

853.06 851.59 1.47

Casing

Ring

530.30 0.81

Diameter

Clearance (B)

Flashed Impeller Wearing Rings

(Fig. 52)

Impeller Ring (C)

Casing

Ring

Diameter

Clearance

Length

12.70 8°

Angle

(E)

9.65 8°

(F)

3420 IOM 8/09 65

Page 70

This page left blank intentionally.

66 3420 IOM 8/09

Page 71

To replace the impeller wear rings

1. Remove the old rings by removing the three set

screws (320) and pulling the ring (142) off of the impeller hub.

2. Clean the impeller hub and press on a new wear ring.

3. Drill and tap three holes in the ring/hub seam 120°

apart, offset from the original setscrew holes. Insert new setscrews (320) and lightly upset the threads.

NOTE: Replacement impeller wear rings are supplied .020-.030 in. oversized and must be turned to size (see) after mounting on the impeller. SX and MX size rings are supplied turned to the finished diameter.

Fig. 52

SHAFT

Inspect the shaft (122) for runout to verify the shaft is straight. See Fig. 53 for proper shaft runout inspection. Inspect the bearing seats and the impeller seats. Verify they are the correct size and free from any scratches or grooves. Bearing fits and tolerances are found in Table 10. The shaft threads must be in good condition. Inspect the keyways for burrs or foreign matter. Replace the shaft if necessary.

Fig. 50

Fig. 51

Fig. 53

3420 IOM 8/09 67

Page 72

Table 10 (inches)

Bearings

Ball

Roller

Bearing

Group Sizes

MX 18x20-20 7316 6316

(modified)

LDS

XXL

12x14-15

16x18-17H 2.5591 2.5591 +.0000 5.5111 5.5111 -.0017 2.5591 2.5591 +.0000 5.5128 5.5111 -.0017

16x18-30

18x20-30 4.1346 4.1331 +.0015 8.8590 8.8583 -.0007 4.1346 4.1331 +.0015 8.8590 8.8583 -.0007

20x24-24 4.1340 4.1339 +.0001 8.8602 8.8571 -.0031 4.1340 4.1339 +.0001 8.8602 8.8571 -.0031

20x24-30

20x24-28 7321 6321

— 18x20-24 7318 6318

L 24x30-32 22226 N/A N/A N/A

30x30-31

30x30-38 9.8449 9.8413 -.0036 9.8449 9.8413 -.0036

30x36-42

20x30-42

36x42-52

Size

Thrust Radial

7313 6313

7321 6321

22228 N/A N/A N/A

22230 N/A N/A N/A

22240 N/A N/A N/A

Inboard Inboard Outboard Outboard

Shaft

Bearing

O.D.

2.5596 2.5585 +.0011 5.5118 5.5118 -.0000 2.5596 2.5585 +.0011 5.5118 5.5118 -.0000

3.1502 3.1490 +.0012 6.6929 6.6929 -.0000 3.1502 3.1490 +.0012 6.6929 6.6929 -.0000

3.1497 3.1496 +.0001 6.6939 6.6919 -.0020 3.1497 3.1496 +.0001 6.6939 6.6919 -.0020

4.1346 4.1331 +.0015 8.8590 8.8583 -.0007 4.1346 4.1331 +.0015 8.8590 8.8583 -.0007

4.1340 4.1339 +.0000 8.8602 8.8571 -.0031 4.1340 4.1339 +.0001 8.8602 8.8571 -.0031

3.5440 3.5425 +.0015 7.4803 7.4803 -.0000 3.5440 3.5425 +.0015 7.4803 7.4803 -.0000

3.5434 3.5433 +.0001 7.4815 7.4791 -.0024 3.5434 3.5433 +.0001 7.4815 7.4791 -.0024

I.D.

Tol. Hsg I.D.

10.6306 10.6299 -.0007

10.6326 10.6285 -.0041 10.6326 10.6285 -.0041

14.1762 14.1716 -.0007

14.1739 14.1732 -.0046 14.1739 14.1732 -.0046

Bearing

O.D.

9.0557 9.0551 -.0006

9.0575 9.0539 .0036 9.0575 9.0539 -.0036

9.8431 9.8425 -.0006

Shaft

Tol.

O.D.

N/A N/A N/A

Bear

ing I.D.

Hsg

Tol.

I.D.

9.0557 9.0551 -.0006

9.8431 9.8425 -.0006

10.6306 10.6299 -.0007

14.1762 14.1716 -.0007

Bearing

O.D.

Tol

Bearings Group Sizes

—

12x14-15

16x18-17H

18x20-20

16x18-30

18x20-30

20x24-24

20x24-30

20x24-28

18x20-24

24x30-32

30x30-31

30x30-38

30x36-42

20x30-41

36x42-52

Ball

(modified)

LDS

Roller

XXL

Table 10 (mm)

Bearing

Size

Thrust

Ra dial

7313 6313

7316 6316

7321 6321

7318 6318

22226 N/A N/A N/A

22228 N/A N/A N/A

22230 N/A N/A N/A

22240 N/A N/A N/A

Inboard Inboard Outboard Outboard

Shaft

Bearing

O.D.

65.014 64.986 0.028 140.000 140.000 0 65.014 64.986 0.028 140.000 140.000 0

65.001 65.001 0.000 139.982 139.982 -0.043 65.001 65.001 0 140.025 139.982 -0.043

80.015 79.985 0.030 170.000 170.000 0 80.015 79.985 0.030 170.00 170.000 0

80.002 80.000 0.003 170.025 169.974 -0.051 80.002 80.000 0.003 170.025 169.974 -0.051

105.019 104.981 0.038 225.019 225.001 -0.018 105.019 104.981 0.038 225.019 225.001 -0.018

105.004 105.001 0.003 225.049 224.970 -0.079 105.004 105.001 0.003 225.049 224.970 -0.079

105.019 104.981 0.038 225.019 225.001 -0.018 105.019 104.981 0.038 225.019 225.001 -0.018

105.004 105.001 0 225.049 224.970 -0.079 105.004 105.001 0.003 225.049 224.790 -0.079

90.018 89.980 0.038 190.000 190.000 0 90.018 89.980 0.038 190.000 190.000 0

90.002 90.000 0.003 190.030 189.969 -0.061 90.002 90.000 0.003 190.030 189.969 -0.061

I.D.

Hsg I.D.

Bearing

O.D.

Tol.

230.015 230.000 -0.015

230.061 229.969 0.091 230.061 229.969 -0.091

250.015 250.000 -0.015

250.060 249.969 -0.091 250.060 249.969 -0.091

270.017 269.999 -0.018

270.068 269.964 -0.104 270.068 269.964 -0.104

360.075 359.959 -0.018

360.017 359.999 -0.117 360.017 359.999 -0.017

Shaft

Tol.

O.D.

N/A N/A N/A

Bearing

I.D.

Hsg

Tol.

230.015 230.000 -0.015

250.015 250.000 -0.015

270.017 269.999 -0.018

360.075 359.959 -0.018

Bearing

I.D.

O.D.

Tol

68 3420 IOM 8/09

Page 73

SHAFT SLEEVES

The shaft sleeve (126) surface in the stuffing box area must be smooth and free of grooves. If grooved, replace the sleeve. The O-ring groove must be in good condition. Check the diametrical clearance between the sleeve and the stuffing box bushing. See Figure 54. The original clearance is shown in Table 8. If the clearance has increased more than .030 in. (.762 mm). The shaft sleeve and/or the stuffing box bushing should be replaced.

BEARING HOUSINGS

Visually inspect the interior of the housings (134, 134A, 134D, or 166) for damage, cracks, corrosion, scale, or debris. Remove all loose and foreign materials. Make sure all lubrication passages are clear. Inspect the bearing bores according to the tolerances in Table 10. Replace the housings if they are out of tolerance.

BEARINGS

Ball and roller bearings (112, 168, 409 and 410) should be inspected for contamination and damage. The condition of the bearings will provide useful information on operating conditions in the bearing housing. Lubricant condition and residue should be noted. Oil analysis is often helpful in diagnosing conditions and/or problems. Bearing damage should be investigated to determine the cause. If the cause is not normal wear, it should be corrected before the pump is returned to service. It is not recommended that anti-friction bearings be reused after they have been disassembled and inspected.

Fig. 54

3420 IOM 8/09 69

Page 74

REASSEMBLY

1. Determine the correct positioning of the impeller

(101) on the shaft (122) based on the direction of rotation. Refer to Figure 55.

Fig. 55

2. Insert the impeller key (178) in the shaft and slide the

impeller on the shaft. Drive or press the shaft into the impeller.

Do not damage the end of the shaft.

Line up the impeller hub with the scribe mark made on the shaft during disassembly. If a new shaft is being used, center the impeller on the keyway.

3. Place the impeller O-rings (412A) in the grooves in

the end of the sleeves (126). Slide the shaft sleeves on the shaft.

4. Place the sleeve O-rings (497) in the grooves in the

end of the sleeve nuts (124 and 130). Slide the sleeve nuts on the shaft. Tighten the nuts against shaft rotation using a spanner or strap wrench.

NOTE: One sleeve has right hand threads and one has left hand threads. The nuts tighten against the pump’s rotation.

CAUTION

INSTALLATION OF THE BEARING HOUSINGS AND BEARINGS

A. SX/MX Group

1. Press the inboard labyrinth seals (333A) into the end covers (109) with a suitably sized arbor. Slide the end covers with the seals installed onto the shaft (122) up to the sleeve nuts (130). The labyrinth seals should face the sleeve nuts as shown in Fugures 29-32.

2. Install the radial (coupling end) bearing (168) on the shaft.

NOTE: There are several ways to install bearings. The recommended method is to use an induction heater that heats as well as demagnitizes the bearings.

! WARNING

Wear insulated gloves when using a bearing heater. The bearings will get hot and can cause physical injury.

NOTE: Coat internal surfaces of bearings with the lubricant that is to be used in service.

3. Install the thrust bearing (112) on the shaft.

NOTE: The SX and MX groups use duplex bearings mounted back to back. Make sure the orientation is correct.

NOTE: There are several ways to install bearings. The recommended method is to use an induction heater that heats as well as demagnitizes the bearings.

! WARNING

Wear insulated gloves when using a bearing heater. The bearings will get hot and can cause physical injury.

5. Tighten the set screws (222B) in the sleeve nuts.

6. Packing: Slide the stuffing box bushings (125) over the sleeves. Position them such that the lock is facing the packing. Slide the lantern ring (105) on the shaft.

Conventional Mechanical Seals: Carefully slide the rotary portion on the sleeve and fasten in position according to the manufacturer’s instructions. Carefully slide the seal glands with the stationary seats and the gland gaskets on the shaft.

Cartridge Mechanical Seal: Carefully slide the cartridge unit on the sleeve.

NOTE: Coat internal surfaces of bearings with the lubricant that is to be used in service.

4. Place the bearing lockwasher (382) on the shaft. Be sure to place the tang of the lockwasher in the keyway of the shaft.

5. Thread the bearing locknut (136) onto the shaft. After the bearing and the shaft have cooled to ambient temperature, tighten the locknut to the value shown in Table 11. Bend any tang of the lockwasher into a slot in the locknut.

6. Press the outboard labyrinth seal (332A) into the radial (coupling end) bearing housing (166) with a suitably sized arbor. Install the radial (coupling end)

70 3420 IOM 8/09

Page 75

bearing housing with the labyrinth seal installed and a bearing housing gasket (360). Slide the housing assembly over the radial bearing.

7. Secure the bearing housing by installing four bearing housing to end cover capscrews (371C). Tighten the capscrews to the torque value shown in Table 11.

8. Install the thrust (outboard end) bearing housing (134) with a bearing housing gasket (360). Slide the bearing housing over the thrust bearing.

9. Secure the bearing housing by installing four bearing housing to end cover capscrews (371C). Tighten the capscrews to the torque value shown in Table 11.

B. M Group, 18x20-24 and 20x24-28

1. Oil Lubrication: Slide both oil throwers (248) on the shaft (122).

Grease Lubrication: Slide both deflectors (248) on the shaft (122).

2. Grease Lubrication only - Install the grease seals (333) in the bearing housings (134A) using a suitably sized arbor.

3. Slide the bearing housings (134A) on the shaft and install the bearings. The radial (coupling end) bearing (168A) is a single row ball bearing and the thrust (outboard) bearing (112A) is a duplex angular contact bearing.

NOTE: The duplex bearing is mounted back to back. Make sure the orientaion is correct.

NOTE: There are several ways to install bearings. The recommended method is to use an induction heater that heats as well as demagnitizes the bearings.

Tighten the oil ring housing to bearing housing capscrews (371T) to the torque value shown in Table

11.

NOTE: Rotating element total travel is adjusted by adding oil ring housing to bearing housing gaskets (360G) on the thrust (outboard) end of the pump in a later step.

8. Oil Lubrication only

a. Place oil rings (114) in position on the groove in the oil ring sleeves (323 and 324).

b. Install the oil ring retaining bracket (398A) in the oil ring housing (515).

c. Bolt the end covers (109A and 119A) to the oil ring housings. Tighten the capscrews (371S) to the torque value shown in Table 11.

d. Slide the coupling end dust covers (123 and 123A) on the shaft.

C. L Group

1. Oil Lubrication: Slide the oil throwers (248) and the bearing housings (134 and 134A) on the shaft (122).

Grease Lubrication: Slide the deflectors (123) and the bearing housings (134 and 134A) on the shaft (122).

2. Slide the roller bearings (409 and 410) on the shaft until they contact the shaft shoulder.

NOTE: The inner race of the roller bearing has a tapered bore. Make sure the large bore end of the bearing faces the end of the shaft. The lip of the adapter sleeve slides under the inner race of the bearing.

3. Lightly oil the shaft and the outside diameter of the

! WARNING

Wear insulated gloves when using a bearing heater. The bearings will get hot and can cause physical injury.

NOTE: Coat internal surfaces of bearings with the lubricant that is to be used in service.

4. Grease Lubrication only - Install the grease shields (346A) on the oil ring sleeves (207 and 208).

5. Slide the oil ring sleeves (207n and 208 or 323 and

324) on the shaft against the bearings.

6. Place the bearing lockwashers (382) and the bearing locknuts (136) on the shaft. After the bearings and shaft have cooled to ambient temperature, tighten the locknut to the torque value shown in Table 11. Bend any tang of the lockwasher into a slot on the locknut.

7. Bolt the oil ring housings (515) with a gasket (360G) to the bearing housing on each end of the shaft.

3420 IOM 8/09 71

adapter sleeve. Slide the lip of the sleeve under the inner race of the bearing.

4. For Oil Lubrication Only: Slide the oil ring sleeves (324) on the shaft.

5. Place the bearing lockwashers (382) and the bearing locknuts (136) on the shaft and tighten finger tight.

6. Adjust the roller bearing clearances:

a. Rotate the shaft until a roller is in the top vertical position.

b. Measure the clearance between the roller and the outer race with a feeler gauge. The amount of adjustment to the internal clearance is based on this initial clearance. Consult the bearing manufacturer’s installation procedure for the proper amount of residual internal clearance.

c. Tighten the bearing locknut until the recommended clearance is obtained.

Page 76

d. Check the clearance by rotating the shaft 90° and measuring the clearance. Tighten the locknut, if required. This should be done several times to ensure the bearing is not distorted.

7. Bend a tang of the lockwasher into a locknut groove.

8. Oil Lubrication

a. Bolt the oil ring housings (515 and 515A) to the bearing housings (134 and 134A) using capscrews (371T).

b. Place the oil rings (114) in the grooves on the oil ring sleeve.

c. Bolt the end covers (109A) and 119A) to the bearing housings using capscrews (371S). Tighten finger tight.

d. Slide the dust cover (139) and the coupling on the shaft.

Grease Lubrication: Slide the dust cover (123A) with the seal installed and the coupling on the shaft.

D. LDS and XL Group

1. Oil Lubrication

*a. Slide the oil throwers (123) on the shaft (122).

b. Install the bearing end covers (109B and 119B) on the bearing housings (134 and 134A) with capscrews (370). Tighten the capscrews to the torque value shown in Table 11.

c. Slide the bearing housing sub-assemblies on the shaft.

Grease Lubrication

*a. Slide the deflectors (333) on the shaft (122).

*b. Install the grease seals (333) in the inboard bearing end covers (109B and 119B).

c. Install the bearing end covers on the bearing housings (134 and 134A) with capscrews (370). Tighten the capscrews to the torque value shown in Table 11.

d. Slide the bearing housing sub-assemblies on the shaft.

2. Slide the roller bearings (409 and 410) on the shaft until they contact the shaft shoulder.

3. Lightly oil the shaft and the outside diameter of the adapter sleeve. Slide the lip of the sleeve under the inner race of the bearing.

4. Slide the oil ring sleeves (324) on the shaft.

5. Place the bearing lockwashers (382) and the bearing locknuts (136) on the shaft and tighten finger tight.

6. L, LDS, XL, and XXL frames use spherical roller bearings mounted on tapered sleeves which require tightening of the bearing locknut to draw the bearing up on the taper. Correct tightening of the locknut is accomplished by measuring the clearance before and after tightening to arrive at a given change in bearing clearnace. Once this change in clearance has been reached, the bearing is correctly mounted on the sleeve. The minumum clearance after tightening should also not be less than the given value. The following steps describe how this is accomplished:

a. With the bearing axis horizontal and no upward force

on the bearing outer race, rotate the inner race such that a set of rollers is at the bottom. Measure the clearance between the bottom roller OD and the ID of the bearing outer race using a feeler gauge. Record this value.

b. Tighten the locknut (136) until a reduction

(measurement from Step 6a minus the measurement after tightening of the locknut) in bearing clearance is reached as given below. Also, verify the minimum clearance is not less than the value given below. Rotate the bearing through 90 degree increments and verify the clearance in a few positions.

SKF

Group

L 22226 CN .0025-.0035 .065-.09 .002 .055

LDS 22228 CN .0025-.0035 .065-.09 .002 .055

XL 22230 CN .003-.004 .075-.10 .0022 .06

XXL 22240 CN .0032-.0043 .08-.11 .0024 .06

7. Bend a tang of the lockwasher into a locknut groove.

8. Oil Lubrication

* These parts are replaced by the optional labyrinth

Bearing

Size

a. Bolt the bearing housings (134 and 134A or 134D and 134A) to the bearing end covers (109A and 119B) using capscrews (370 or 371C). Tighten the capscrews to the torque shown in Table 11.

b. Place the oil rings (114) in the grooves on the oil ring sleeve.

c. Bolt the end covers (109A and 119A) to the bearing housings using capscrews (370 or 371C). Tighten finger tight.

*d. Slide the dust cover (123A) and the coupling on the shaft.

seals (332 Opt), 333 Opt) when so equipped. Do not separate the rotor from the stator with labyrinth style seals.

Clearance Reduction

Inches mm In. mm

Minimum Clearance

72 3420 IOM 8/09

Page 77

Grease Lubrication

a. Bolt the bearing housings (134 and 134A or 134D and 134A) to the bearing end covers (109B and 119B) using capscrews (370 or 371C). Tighten the capscrews to the torque shown in Table 11.

b. Bolt the end covers (109A and 119A) to the bearing housings using capscrews (370 or 371C). Tighten finger tight.

*c. Slide the dust cover (332) and the coupling on the shaft.

* These parts are replaced by the optional labyrinth

seals (332 Opt, 333 Opt) when so equipped. Do not separate the rotor from the stator with labyrinth style seals.

INSTALLATION OF THE ROTATING ELEMENT

1. Install and position the coupling hub on the shaft (122). Heat the hub in an oven or hot oil bath until

the hub reaches 300°F (150°C). Slide the hub on the shaft until it is positioned in the same location as it was originally. It should like up with the mark scribed on the shaft during disassembly.

! WARNING

Use proper personal safety equipment when handling the hot coupling hub.

2. Clean all the fits/seats (wear ring, bearing housing, stuffing box bushing) in both the upper and lower half casing.

3. Slide the casing wear rings (127) onto the impeller. Be sure the continuous lock on the rings is facing toward the impeller.

4. SX/MX: Carefully lower the rotating element into the lower half casing. Make sure the double locks on the wear rings are facing up and the anti-rotation pins (445A) in the stuffing box bushings and the rabbet fit of the bearing housings are facing down. Ensure the pin engages the hole in bushing fit bore. The unit should easily settle into place.

All other Groups: After the element has been properly seated, rotate the rings, bearing housings, and stuffing

box bushings 180° so that the double locks are located in the lower half casing.

6. Check the location of the impeller with respect to the casing. Make sure the impeller is centered in the casing. If it is not, loosen the sleeve nuts and shift the sleeves and the impeller as required. Check for free turning by rotating the shaft by hand.

7. SX/MX: Bolt the thrust end bearing housing to the casing using the bearing housing to casing capscrews (372U). Tighten the capscrews to the torque values shown in Table 11.

All other Groups: Replace the thrust end bearing cap (111A) and tighten the nuts (425A) evenly to the torque values listed in Table 11.

Make sure the caps are replaced on the same end from which they were removed and that the match marks are lined up.

Check for free turning by turning the shaft by hand.

8. For SX/MX, M, 18x20-24 and 20x24-28 ONLY:

Adjust the shaft end play.

a. Clamp a dial indicator to the pump such that the button rests against the end of the shaft.

b. Push the shaft back and forth as far as possible. The total end play must be at least .001 in. and not more than .008 in. (.025 - .203 mm).

c. If the end play is less than .001 in., add thrust end bearing end cover gaskets or bearing housing to oil ring housing gaskets (360 or 360G) until the proper clearance is obtained. If the endplay is greater than .008 in., remove gaskets as necessary.

NOTE: Because of manufacturing tolerances, duplex bearings may vary in width up to .030 in. A correctly assembled pump may require several gaskets to correctly set the bearing end play.

CAUTION

All other Groups: Carefully lower the rotating element into the lower half casing. Make sure the double locks on the wear rings, bearing housings, and stuffing box bushings are facing up.

Do not completely take the weight off of the sling.

5. SX/MX: After the element has been properly seated,

rotate the rings 180 ° so that the double locks are located in the lower half casing.

3420 IOM 8/09 73

CAUTION

9. SXMX: Bolt the radial end bearing housing to the casing using the bearing housing to casing cap screws (372U). Tighten the cap screws to the torque values shown in Table 11.

All other Groups: Replace the radial end bearing cap and tighten the nuts evenly to the torque values listed in Table 11.

Make sure the caps are replaced on the same end from which they were removed and that the match marks are lined up.

CAUTION

Page 78

10. Check for free turning by turning the shaft by hand.

11. Replace any grease fittings (193), if required.

12. Place the parting gasket (351) in position on the lower half casing. Make sure the edge of the gasket is tight against the wear rings and the stuffing box bushings.

NOTE: If the area around the wear ring locks are not properly sealed, leakage will occur from the high to the low pressure zones in the pump. This will result in lost performance and efficiency.

13. Carefully lower the upper half casing onto the lower half. It should settle into place without resistance.

14. Replace the dowel pins (469G).

15. Check for free turning by rotating the shaft by hand.

16. Tighten the parting nuts alternately on each side starting from the center.

17. Check for free turning by rotating the shaft by hand.

18. Trim the parting gasket at the stuffing box face, if required.

CAUTION

Make sure the gasket is flush to the stuffing box face to prevent leakage.

19. *Oil Lubrication: Slide the oil throwers (248) and dust covers (139) to within 1/32 in. of the bearing end covers or adapters. Tighten the set screws (222N).

*Grease Lubrication: Slide the deflectors (123) to within 1/32 in. of the bearing end covers or adapters. Tighten the set screws (364).

20. Packing: Repack the stuffing box and replace the gland assembly as detailed in Section 4 - Operation.

21. Install all auxiliary piping.

22. Follow the procedures outlined in Section 4 for preparation and operation of the unit.

* N/A for labyrinth seal option.

Dry Threads

Sizes

2210 2442

" 30 (41) 20 (27) 90 (122) 60 (81)

" 60 (81) 40 (54) 175 (237) 115 (156)

" 105 (142) 70 (95) 305 (414) 205 (278)

" 170 (231) 115 (156) 495 (671) 330 (447)

1 255 (346) 170 (231) 740 (1003) 495 (671)

" 360 (488) 240 (325) 1050 (1424) 700 (949)

" 885 (1200) 590 (800) 2580 (3498) 1720 (2332)

" 1400 (1898) 935 (1268) N/A N/A

M12 30 (41) 20 (27) 85 (115) 55 (75)

M16 60 (81) 40 (54) 175 (237) 115 (156)

M20 130 (176) 85 (115) 375 (509) 250 (339)

M24 220 (298) 145 (197) 640 (868) 425 (576)

M30 440 (597) 295 (400) 1275 (1729) 850 (1153)

2210 - ASTM A108 GR. 1211 - Carbon Steel 2239 - ASTM A193 GR. B7 - AISI 4140 Steel 2242 - ASTM A108 GR. 1018 - Carbon Steel 2243 - ASTM A108 GR. 1212 - Carbon Steel

Table 11

Bolt Torque Values - Ft-lb. (N-m)

Lub. Threads

2210 2442

Dry Threads

2239 2443

Lub. Threads

2239 2443

74 3420 IOM 8/09

Page 79

SPARE AND REPAIR PARTS

SX,MX .........................................76

M & 20X24-28 ......................................80

18X20-24 .........................................84

L .........................................88

LDS .........................................92

XL/XXL .........................................96

3420 IOM 8/09 75

Page 80

SX/MX

GREASE LUBE

FLOOD OIL LUBE

76 3420 IOM 8/09

Page 81

Parts List with Materials of Construction

SX, MX

Item

100

101

105

106

107

109

112

122

124

125

126

127

130

134

136

142

166

168

178

190E

193H

222B

251

320

332A

333A

351D

351S

353

355

356A

357H

358

360

371C

371D

372U

382

400

408

412A

418

425

Qty per

Pump

1 set

var.

Part Name All Iron Bronze Fitted

Casing

Impeller

Lantern Ring

Stuffing Box Packing

Gland - Stuffing Box

End Cover

Ball Bearing - Thrust

Shaft

Sleeve Nut, RH

Stuffing Box Bushing

Shaft Sleeve

Casing Wear Ring

Sleeve Nut, LH

Bearing Housing - Thrust

Bearing Locknut

Impeller Wear Ring

Bearing Housing - Radial

Ball Bearing - Radial

Impeller Key

Pipe Nipple

Grease Fitting

Set Screw - Sleeve Nut

Sight Oiler

Set Screw - Impeller Wearing Ring

Seal, Labyrinth - O.B.

Seal Labyrinth - I.B.

Gasket - Casing Discharge

Gasket - Casing Suction

Stud - Gland

Hex Nut - Gland Stud

Stud - Casing

Hex Nut - Casing Taper Pin

Pipe Plug - Casing (Not Shown)

Gasket - Cover to Housing

Hex Cap Screw - Cover to Housing

Hex Cap Screw - Housing to Casing

Bearing Lockwasher

Key - Coupling (Not Shown)

Pipe Plug - Casing (Not Shown)

O-ring - Impeller

Hex Cap Screw - Casing Jacking

Hex Nut - Casing Stud

Iron/316

Trim

A48 Class 30B A743 CF-8M

A48Class25B B584 C87500 A743 CF-8M

25% Glass Filled TFE

Non-Asbestos

A743 CF-8M

A48 Class 25B

Steel

A434 GR 4140 A564 Type 630

A48 Class 25B B584 C87500 A743 CF-8M

B584 C87500 A743 CF-8M

A48 Class 20B B584 C87500 A743 CF-8M

A48 Class 25B B584 C87500 A743 CF-8M

A48 Class 25B

Steel

A48 Class 20B B584 C87500 A743 CF-8M

A48 Class 25B

Steel

Steel A582 Type 303

A53

Steel

F738M Class A4-50

Metal / Glass

F738M Class A4-50

Carbon/Graphite filled Teflon w/ Viton O-rings

Non-Asbeston Sheet Packing

Non-Asbestos Sheet Packing

Steel - 2441

Steel - 2443

Steel - 2442

Steel

Vellumoid Sheet Packing D-1170

Steel - 2442

Steel

Nitrile (Buna-N) Rubber

Steel - 2442

All 316SS

3420 IOM 8/09 77

Page 82

Parts List with Materials of Construction

SX, MX

Item

426

445A

469G

497

Qty per

Pump

var.

Part Name All Iron Bronze Fitted

Hex Cap Screw - Casing Parting

Pin - Anti-Rotation

Taper Pin

O-ring - Sleeve Nut

Iron/316

Trim

Steel

F738M Class A2-70

Steel A276 Type 316

Nitrile (Buna-N) Rubber

All 316SS

78 3420 IOM 8/09

Page 83

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3420 IOM 8/09 79

Page 84

M/20X24-28

GREASE LUBE

RING OIL LUBE

80 3420 IOM 8/09

Page 85

Parts List With Materials Of Construction

M & 20x24-28

Item

100 1

101 1

105 2

106 1 set

107 2

109A 1

111A 2

112A 1

113A 2

114 2

119A 1

122 1

123 1

123A 1

124 1

125 2

126 2

127 2

130 1

134A 2

136 2

142 2

168A 1

178 1

190E 2

193 2

207 1

208 1

210 2

222B 4

222P 6

222Q 4

229 4

248 2

251 2

251C 2

320 12

323 1

324 1

328 4

333 2

346A 2

351D 1

351S 1

355 4

355B 4

Qty per

Pump

Part Name All Iron

Casing

Impeller

Lantern Ring

Stuffing Box Packing

Quench Gland - Stuffing Box

Bearing End Cover

Bearing Cap

Ball Bearing - Thrust

Breather

Oil Ring

Bearing End Cover

Shaft

Deflector - O.B., Grease

Deflector - O.B.

Sleeve Nut, RH

Stuffing Box Bushing

Shaft Sleeve

Casing Wear Ring

Sleeve Nut, LH

Bearing Housing

Bearing Locknut

Impeller Wear Ring

Ball Bearing - Radial

Impeller Key

Pipe Nipple

Grease Fitting

Oil Ring Sleeve, Grease

Packing - Gland

Set Screw - Sleeve Nuts

Set Screw - Deflector

Set Screw, Grease Shield

Swing Bolt

Oil Thrower - I.B.

Sight Oiler

Pipe Plug (Sight Oiler)

Set Screw - Impeller Wearing Ring

Oil Ring Sleeve - Thrust

Oil Ring Sleeve - Radial

Hex Cap Screw - Gland

Oil Seal - I.B., Grease

Grease Shield

Gasket - Casing Discharge

Gasket - Casing Suction

Hex Nut - Gland Stud

Hex Nut - Quench Gland

Bronze

Fitted

A48 Class 30B A743 CF-8M

A48 Class 25B B584 C87500 A743 CF-8M

25% Glass Filled TFE

Non-Asbestos

A48 Class 25B B584 C87500 A743 CF-8M

A48 Class 25B

A48 Class 30B

B584 C87500

A48 Class 25B

A322 GR 4340 A276 Type 316

A48 Class 20B

A48 Class 25B B584 C87500 A743 CF-8M

A48 Class 25B

A48 Class 25B B584 C87500 A743 CF-8M

A582 Type 303 A276 Type 316

Non-Asbestos

A276 Type 316

Steel A276 Type 316

A48 Class 20B

Metal / Glass

A276 Type 316

Steel A276 Type 316

Buna Rubber and Steel

Non-Asbestos Sheet Packing

Steel A276 Type 316

Steel

A53

Steel

Iron / 316

Trim

All 316SS

3420 IOM 8/09 81

Page 86

Parts List With Materials Of Construction

M & 20x24-28

Item

356P 8

356Q var.

358C var.

358V var.

360E 2

360G 8

363B 6

364 4

371S 14

371T 12

382 2

398A 2

400 1

412A 2

418 2

425A 8

425B var.

Qty per

Pump

Part Name All Iron

Stud - Casing Bearing Cap

Stud - Casing Parting

Pipe Plug - Casing (Not Shown)

Pipe Plug - Frame (Not Shown)

Gasket - Cover to Housing

Gasket - Housing to Housing

Insert - Set Screw

Hex Cap Screw - Cover to Housing

Hex Cap Screw - Hsg. to Hsg.

Bearing Lockwasher

Retaining Bracket - Oil Ring

Key - Coupling (Not Shown)

O-Ring - Impeller

Hex Cap Screw - Casing Jacking

Hex Nut - Casing Bearing Cap

Hex Nut - Casing Parting

Bronze

Fitted

Steel - 2210

Kraft Paper

Non-Asbestos Sheet Packing

Steel - 2210

O-Ring Nitrile (Buna-N) Rubber

Steel - 2210

Iron / 316

Trim

Steel

All 316SS

82 3420 IOM 8/09

Page 87

This page left blank intentionally.

3420 IOM 8/09 83

Page 88

18x20x24

GREASE LUBE

RING OIL LUBE

84 3420 IOM 8/09

Page 89

Parts List with Materials of Construction

18x20-24

Item

100 1

101 1

105 2

106 1 set

107 2

109A 1

111A 2

112A 1

113A 2

114 2

119A 1

122 1

123 2

123A 1

124 1

125 2

126 2

127 2

130 1

134A 2

136 2

142 2

168A 1

178 1

190E 2

193 2

210 2

222B 4

222P 6

222Q 4

229 4

248 2

251 2

251C 2

320 12

323 1

324 1

328 4

333 2

346A 2

351D 1

351S 1

355 4

355B 4

356P 8

Qty per

Pump

Part Name All Iron

Casing

Impeller

Lantern Ring

Stuffing Box Packing

Quench Gland - Stuffing Box

Bearing End Cover

Bearing Cap

Ball Bearing - Thrust

Breather

Oil Ring

Bearing End Cover

Shaft

Deflector - I.B., Grease

Deflector - O.B.

Sleeve Nut, RH

Stuffing Box Bushing

Shaft Sleeve

Casing Wear Ring

Sleeve Nut, LH

Bearing Housing

Bearing Locknut

Impeller Wear Ring

Ball Bearing - Radial

Impeller Key

Pipe Nipple

Grease Fitting

Packing - Gland

Set Screw - Sleeve Nuts

Set Screw - Deflector

Set Screw - Grease Shield

Swing Bolt

Oil Thrower

Sight Oiler

Pipe Plug (Sight Oiler)

Set Screw - Impeller Wearing Ring

Oil Ring Sleeve - Thrust

Oil Ring Sleeve - Radial

Hex Cap Screw - Gland

Oil Seal - I.B., Grease

Grease Shield

Gasket - Casing Discharge

Gasket - Casing Suction

Hex Nut - Gland Stud

Hex Nut - Quench Gland

Stud - Casing Bearing Cap

Bronze

Fitted

A48 Class 30B A743 CF-8M

A48 Class 25B B584 C87500 A743 CF-8M

25% Glass Filled TFE

Non-Asbestos

A48 Class 25B B584 C87500 A743 CF-8M

A48 Class 20B

A48 Class 30B

B584 C87500

A48 Class 20B

A322 FR 4340 A276 Type 316

A48 Class 20B

A48 Class 20B B584 C87500 A743 CF-8M

A48 Class 25B

A48 Class 25B B584 C87500 A743 CF-8M

A582 Type 303 A276 Type 316

Non-Asbestos

A276 Type 316

Steel A276 Type 316

A48 Class 20B

Metal / Glass

A276 Type 316

Buna Rubber and Steel

Non-Asbestos Sheet Packing

Steel A276 Type 316

Steel - 2210

Steel

A53

Steel

Iron / 316

Trim

All 316SS

3420 IOM 8/09 85

Page 90

Parts List with Materials of Construction

18x20-24

Item

356G 52

358C var.

358V var.

360E 2

360G 8

363B 10

364 4

371S 12

371T 14

382 2

400 1

412A 2

418 4

425A 8

425B 52

469G 2

469L 2

Qty per

Pump

Part Name All Iron

Stud - Casing Parting

Pipe Plug - Casing (Not Shown)

Pipe Plug - Frame (Not Shown)

Gasket - Cover to Housing

Gasket - Housing to Housing

Insert - Set Screw

Hex Cap Screw - Hsg. to Hsg.

Bearing Lockwasher

Key - Coupling (Not Shown)

O-ring - Impeller

Hex Cap Screw - Casing Jacking

Hex Nut - Casing Bearing Cap

Hex Nut Casing Parting

Dowel Pin - Casing

Dowel Pin - End Cover

Bronze

Fitted

Steel - 2210

Kraft Paper

Non-Asbestos Sheet Packing

Steel - 2210

Nitrile (Buna-N) Rubber

Steel - 2210

Iron / 316

Trim

Steel

All 316SS

86 3420 IOM 8/09

Page 91

This page left blank intentionally.

3420 IOM 8/09 87

Page 92

GREASE LUBE

RING OIL LUBE

88 3420 IOM 8/09

Page 93

Parts List with Materials of Construction

Item

100 1

101 1

105 2

106 1 set

107 2

109 1

109A 1

111 2

111A 2

113A 2

114 2

119 1

119A 1

122 1

123 2

123A 1

124 1

125 2

126 2

127 2

130 1

134 1

134A 1

136 2

139 1

142 2

178 1

190 2

190E 2

193 2

210 6

222B 6

222N 4

229 2

248 2

251 12

320 1

323 1

324 4

328 4

332 1

333 2

351D 1

351S 1

355 4

355B 4

Qty per

Pump

Part Name All Iron

Casing

Impeller

Lantern ring

Stuffing Box Packing

Quench gland - Stuffing Box

Bearing end Cover, Grease

Bearing End Cover

Bearing Cap, Grease

Bearing Cap

Breather

Oil Ring

Bearing End Cover, Grease

Bearing End Cover

Shaft

Deflector, - I.B., Grease

Deflector - O.B., Grease

Sleeve Nut, RH

Stufing Box Bushing

Shaft Sleeve

Casing Wear Ring

Sleeve Nut, LH

Bearing Housing - Thrust

Bearing Housing - Radial

Bearing Locknut

Dust Cover

Impeller Wear Ring

Impeller Key

Pipe Nipple, Grease

Pipe Nipple

Grease Fitting

Packing - Gland

Set Screw - Sleeve Nuts

Set Screw - Oil Thrower

Swing Bolt

Oil Thrower - I.B.

Sight Oiler

Set Screw - Impeller Wearing Ring

Oil Ring Sleeve - Thrust

Oil Ring Sleeve - Radial

Hex Cap Screw - Gland

Oil Seal - O.B., Grease

Oil Seal - I.B., Grease

Gasket - Casing Discharge

Gasket - Casing Parting

Hex Nut - Gland Stud

Hex Nut Quench Gland

Bronze

Fitted

A48 Class 30B A743 CF-8M

A48 Class 25B B584 C87500 A743 CF-8M

25% Glass Filled TFE

Non-Asbestos

A48 Class 20B B584 C87500 A743 CF-8M

A48 Class 25B

A48 Class 30B

B584 C87500

A48 Class 25B

A48 Class 20B

A322 GR 4340 A276 Type 316

Laminate Plastic - NEMA GR. C

Laminated Plastic - NEMA GR. C

A48 Class 20B B584 C87500 A743 CF-8M

A48 Class 25B

A48 Class 20B

A48 Class 25B B584 C87500 A743 CF-8M

A582 Type 303 A276 Type 316

Non-Asbestos

A276 Type 316

Steel A276 Type 316

A48 Class 20B

Metal / Glass

A276 Type 316

B584 C87500

Steel A276 Type 316

Buna Rubber and Steel

Non-Asbestos Sheet Packing

Steel A276 Type 316

Iron / 316

Steel

A53

Steel

Trim

All 316SS

3420 IOM 8/09 89

Page 94

Parts List with Materials of Construction

Item

356P 8

356Q 38

358C var.

358V var.

360 2

360E 2

360G 2

363B 6

364 6

370 8

371C 8

371S 12

371T 16

382 2

388Q 4

400 1

409 1

410 1

412A 2

418 4

425A 8

425B 38

469G 2

469L 2

495 2

497 2

515 1

515A 1

518 1

519 1

520 1

521 2

543B 2

Qty per

Pump

Part Name All Iron

Stud - Casing Bearing Cap

Stud - Casing Parting

Pipe Plug - Casing (Not Shown)

Pipe Plug - Frame (Not Shown)

Gasket - Cover to Housing, Grease

Gasket - Cover to Housing

Gasket - Housing to Housing

Insert - Set Screw

Hex Cap Screw - Cover to Hsg., Gr.

Hex Cap Screw - Cover to Housing

Hex Cap Screw - Hsg. to Hsg.

Bearing Lockwasher

Hex Cap Screw - Retainer

Key - Coupling (Not Shown)

Roller Bearing - Radial

Roller Bearing - Thrust

O-ring - Impeller

Hex Cap Screw - Casing Jacking

Hex Nut - Casing Bearing Cap

Hex Nut - Casing Parting

Dowel Pin - Casing

Dowel Pin - End Cover (Oil Lube)

Retainer Pin - Oil Ring

O-ring - Sleeve Nut

Oil Ring Housing - Thrust

Oil Ring Housing - Radial

Nut - Bearing Removal (Not Shown)

Locking Plate - Cplg. (Not Shown)

Nut - Coupling (Not Shown)

Sleeve - Roller Bearing

Coupling - Grease Ftg.

Bronze

Fitted

Steel - 2210

Kraft Paper

Non-Asbestos Sheet Packing

Steel - 2210

Nitrile (Buna-N) Rubber

Steel - 2210

Nitrile (Buna-N) Rubber

A48 Class 25B

Iron / 316

Trim

Steel

All 316SS

90 3420 IOM 8/09

Page 95

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3420 IOM 8/09 91

Page 96

LDS

GREASE LUBE

RING OIL LUBE

92 3420 IOM 8/09

Page 97

Parts List with Materials of Construction

LDS

Item

100 1

101 1

105 2

106 1 set

107 2

109A 1

109B 1

111 2

111A 2

113A 2

114 2

119A 1

119B 1

122 1

123 2

123A 1

124 1

125 2

126 2

127 2

130 1

134 1

134A 1

136 2

142 2

178 1

190E 2

193 2

210 2

222B 2

222P 6

229 4

251 2

320 12

323 1

324 1

328 4

332 1

333 2

351D 1

351S 1

355 4

356P 8

356Q 58

357P 2

Qty per

Pump

Part Name All Iron

Casing

Impeller

Lantern Ring

Stuffing Box Packing

Quench gland - Stuffing Box

Brg. End Cover

Bearing Cap, Grease

Bearing Cap

Breather

Oil Ring

Bearing End Cover

Shaft

Deflector - I.B.

Deflector - O.B.

Sleeve Nut, RH

Stuffing Box Bushing

Shaft Sleeve

Casing Wear Ring

Sleeve Nut, LH

Bearing Housing - Thrust

Bearing Locknut

Impeller Wear Ring

Impeller Key

Pipe Nipple

Grease Fitting

Packing - Gland

Set Screw - Sleeve Nuts

Set Screw - Deflector

Swing Bolt

Sight Oiler

Set Screw - Impeller Wearing Ring

Oil Ring Sleeve - Thrust

Oil Ring Sleeve - Radial

Hex Cap Screw - Gland

Oil Seal - O.B., Grease

Oil Seal - I.B., Grease

Gasket - Casing Discharge

Gasket - Casing Suction

Hex Nut - Gland Stud

Stud - Casing Bearing Cap

Stud - Casing Parting

Hex Nut - Casing Taper Pin

Bronze

Fitted

A48 Class 30B A743 CF-8M

A48 Class 25B B584 C87500 A743 CF-8M

25% Glass Filled TFE

Non-Asbestos

A743 CF-8M

A48 Class 25B

B584 C87500

A48 Class 25B

A322 GR 4340 A276 Type 316

A48 Class 20B

A48 Class 20B B584 C87500 A743 CF-8M

A48 class 25B

A48 Class 25B

A48 Class 25B B584 C87500 A743 CF-8M

A582 Type 303 A276 Type 316

Non-Asbestos

A276 Type 316

Metal / Glass

A276 Type 316

Buna Rubber and Steel

Non-Asbestos Sheet Packing

A276 Type 316

Steel - 2210

Steel

A53

Steel

Iron / 316

Trim

All 316SS

3420 IOM 8/09 93

Page 98

Parts List with Materials of Construction

LDS

Item

358C var.

358V var.

360K 2

360N 2

364 6

370 13

371C 13

382 2

400 1

409 1

410 1

412A 2

418 4

425A 8

425B 58

469G 2

497 2

Qty per

Pump

Part Name All Iron

Pipe Plug - Casing (Not Shown)

Pipe Plug - Frame (Not Shown)

Gasket - Cover to Housing

Insert - Set Screw

Hex Cap Screw - Cover to Housing

Bearing Lockwasher

Key - Coupling (Not Shown)

Roller Bearing - Radial

Roller Bearing - Thrust

O-ring - Impeller

Hex Cap Screw - Casing Jacking

Hex Nut - Casing Bearing Cap

Hex Nut - Casing Parting

Dowel Pin - Casing

O-ring - Sleeve Nut

Bronze

Fitted

Steel - 2210

Kraft Paper

Non-Asbestos Sheet Packing

Steel - 2210

Nitrile (Buna-N) Rubber

Steel - 2210

Nitrile (Buna-N) Rubber

Iron / 316

Trim

Steel

All

316SS

94 3420 IOM 8/09

Page 99

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3420 IOM 8/09 95

Page 100

96 3420 IOM 8/09

Goulds Pumps 3420 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual