7/30/2019 3171 IOM

1/56

Installation, Operation and Maintenance Instructions

Model 3171

7/30/2019 3171 IOM

2/56

2 3171 IOM 4/06

Pump Safety Tips

Safety Apparel: Insulated work gloves when handling hot

bearings or using bearing heater

Heavy work gloves when handling parts withsharp edges, especially impellers

Safety glasses (with side shields) for eyeprotection, especially in machine shop areas

Steel-toed shoes for foot protection whenhandling parts, heavy tools, etc

Other personal protective equipment to protectagainst hazardous/toxic fluids

Coupling Guards: Never operate a pump without a coupling

guard properly installed

Flanged Connections: Never force piping to make a connection with

a pump

Use only fasteners of the proper size andmaterial

Ensure there are no missing fasteners

Beware of corroded or loose fasteners

Operation: Do not operate below minimum rated flow, or

with suction/discharge valves closed

Do not open vent or drain valves, or removeplugs while system is pressurized

Maintenance Safety: Always lock out power

Ensure pump is isolated from system andpressure is relieved before disassemblingpump, removing plugs, or disconnectingpiping

Use proper lifting and supporting equipmentto prevent serious injury

Observe proper decontamination procedures

Know and follow company safety regulations

Observe all cautions and warningshighlighted in pump Installation, Operationand Maintenance Instructions.

7/30/2019 3171 IOM

3/56

3171 IOM 4/06 3

Safety Definitions

These pumps have been designed for safe and reliable operation when properly used and

maintained in accordance with instructions contained in this manual. A pump is a pressurecontaining device with rotating parts that can be hazardous. Operators and maintenancepersonnel must realize this and follow safety measures. Goulds pumps shall not be liable for physical injury, damage or delays caused by a failure to observe the instructions in this manual.The following symbols are used to denote special attention:

Electrical Hazard. Particular care must be taken when electrical power source to theequipment is energized.

Warning. Operating procedure, practice etc which, if not correctly followed, could result inpersonal injury or loss of life

Caution. Operating procedure, practice etc which if not followed could result in damage or destruction of equipment

ATEX. If equipment is to be installed in a potentially explosive atmosphere and theseprocedures are not followed, personal injury or equipment damage from an explosion mayA

7/30/2019 3171 IOM

4/56

4 3171 IOM 4/06

7/30/2019 3171 IOM

5/56

3171 IOM 4/06 5

This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Model 3171 Vertical Sump Pump. This manual covers the standard productplus common options that are available. For special options, supplemental instructions aresupplied. This manual must be read and understood before installation and start-up.

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

Goulds shall not be liable for physical injury, damage, or delays caused by afailure to observe the instructions for installation, operation, and maintenancecontained in this manual.

Warranty is valid only when genuine Goulds parts are used.

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

Supervision by an authorized Goulds representative is recommended to assureproper installation.

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

THIS MANUAL EXPLAINS

Proper Installation Start-up Procedures Operation Procedures

Routine Maintenance

Pump Overhaul Trouble Shooting Ordering Spare or Repair Parts

FOREWORD

7/30/2019 3171 IOM

6/56

6 3171 IOM 4/06

When pumping unit is installed in a potentially explosive atmosphere, the instructions after theEx symbol must be followed. Personal injury and/or equipment damage may occur if theseinstructions 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.

Explosion PreventionIn order to reduce the possibility of accidental explosions in atmospheres containingexplosive gasses and/or dust, the instructions under the ATEX symbol must be closelyfollowed. ATEX certification is a directive enforced in Europe for non-electrical and

electrical equipment installed in Europe. ATEX requirements are not restricted to Europe,and are useful guidelines for equipment installed in any potentially explosive environment.

Special ATEX considerations All installation and operation instructions in this manual must be strictly adhered to.

In addition, care must be taken to ensure that the equipment is properly maintained. Thisincludes but is not limited to:

1. monitoring the pump frame and liquid end temperature2. maintining proper bearing lubrication3. ensuring that the pump is operated in the intended hydraulic range

ATEX IdentificationFor a pumping unit (pump, seal, coupling, motor and pump accessories) to be

certified for use in an ATEX classified environment, the proper ATEX identification must bepresent. The ATEX tag will be secured to the pump or the baseplate on which it ismounted. A typical tag will look like this:

II 2 G/D T4

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

II ------------ Group 22 ------------- Category 2

G/D ------------ Gas and Dust presentT4 ------------ Temperature class, can be T1 to T6 (see following

table)

A

A

7/30/2019 3171 IOM

7/56

3171 IOM 4/06 7

Table 1

Code Max permissible surfacetemperature, oF ( oC)

Max permissible liquidtemperature, oF ( oC)

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

The code classification marked on the equipment should be in accordance with thespecified area where the equipment will be installed. If it is not, please contact your

ITT/Goulds representative before proceeding.

Intended UseThe ATEX conformance is only applicable when the pump unit is operated within its

intended use. All instructions within this manual must be followed at all times. Operating,installing or maintaining the pump unit in any way that is not covered in this manual cancause serious personal injury or damage to the equipment. This includes any modification

to the equipment or use of parts not provided by ITT/Goulds. If there is any questionregarding the intended use of the equipment please contact an ITT/Goulds representativebefore proceeding.

7/30/2019 3171 IOM

8/56

8 3171 IOM 4/06

7/30/2019 3171 IOM

9/56

3171 IOM 4/06 9

PAGE SECTION

TABLE OF CONTENTS

11 SAFETY 1

13 GENERAL INFORMATION 2

17 INSTALLATION 3

21 OPERATION 4

25 PREVENTIVE MAINTENANCE 5

31 DISASSEMBLY & REASSEMBLY 6

43 APPENDICES 7

43 Appendix I Float Controls

47 Appendix II Upper Stuffing Box and Vapor Proof Construction

49 Appendix III Steam Jacketed (Molten Sulfur) Construction

51 Appendix IV Enclosed Line Shaft

53 Appendix V Grease Cup Sealed Bearings

7/30/2019 3171 IOM

10/56

10 3171 IOM 4/06

7/30/2019 3171 IOM

11/56

3171 IOM 4/06 11

DEFINITIONS 11GENERAL PRECAUTIONS 11

This pump has been designed for safe and reliableoperation when properly used and maintained inaccordance with instructions contained in thismanual. A pump is a pressure containing devicewith rotating parts that can be hazardous.Operators and maintenance personnel must realizethis and follow safety measures. Goulds Pumpsshall not be liable for physical injury, damage or delays caused by a failure to observe theinstructions in this manual.

Throughout this manual the words WARNING ,CAUTION , and NOTE are used to indicateprocedures or situations which require specialoperator attention:

Operating procedure, practice, etc.which, if not correctly followed, couldresult in personal injury or loss of life.

Operating procedure, practice, etc.which, if not followed, could result indamage or destruction of equipment.

NOTE: Operating procedure, condition, etc.which is essential to observe.

EXAMPLES

Pump shall never be operatedwithout coupling guard installedcorrectly.

Throttling flow from the suction sidemay cause cavitation and pump

damage.NOTE: Proper alignment is essential for longpump life.

Personal injuries will result if procedures outlined in this manualare not followed.

NEVER apply heat to removeimpeller. It may explode due totrapped liquid.

NEVER use heat to disassemblepump due to risk of explosion fromtrapped liquid.

NEVER operate pump withoutcoupling guard correctlyinstalled.

NEVER operate pumpbeyond the rated conditions

to which the pump was sold.

NEVER start pump withoutproper prime (sufficientliquid in pump casing).

NEVER run pump belowrecommended minimum flowor when dry.

ALWAYS lock out power tothe driver before performingpump maintenance.

NEVER operate pump without safetydevices installed.

NEVER operate pump withdischarge valve closed.

DEFINITIONS

SAFETY

A

A

A

AGENERAL PRECAUTIONS

A

7/30/2019 3171 IOM

12/56

12 3171 IOM 4/06

NEVER operate pump withsuction valve closed.

DO NOT change conditions of servicewithout approval of an authorizedGoulds representative.

For additional safety precautions, andwhere noted in this manual, conditionmonitoring devices should be used.

This includes, but is not limited to:

Pressure gauges Flow meters Level indicators Motor load readings

Temperature detectors Bearing monitors Leak detectors PumpSmart control system

For assistance in selecting the proper instrumentation and its use, please contact your ITT/Goulds representative.

AA

A

CONDITION MONITORING

7/30/2019 3171 IOM

13/56

3171 IOM 4/06 13

PUMP DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13NAMEPLATE INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14RECEIVING THE PUMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Storage Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

The Model 3171 is a Vertical Submerged BearingSump and Process Pump.

The Model is based on three bearing frames with 17hydraulic sizes. The S/ST group has identical bearingswith a slightly different shaft on the impeller end for theS and ST. The M/MT group is identical in all aspectsfor the power end. The MT is used to denote the factthat the liquid end is common with an S group unit, buthas been modified slightly to accept a larger shaft.Groups are as follows:

S/ST 9 pump sizesM/MT 8 pump sizes

NOTE: 2 are common with S group sizes.

L 2 pump sizes

NOTE: Each pump has a choice of two differentdischarge pipes giving four combinations.

Casing: The casing is tangential discharge and self-venting. The casing, with its integral bearing retainer,

is precision bored to insure permanent alignmentbetween the column casing, suction cover, andbearing at all times. The suction cover bolts are alltapped into raised bosses to insure generous metalthickness at all points in the casing.

Impeller: The impeller is fully open and keyed to theshaft and held by a self-locking cap screw to insurepositive locking and prevent damage from reverserotation. Impellers are spin-balanced (single plane) toISO G6.3 to insure smooth operation. The impeller isprovided with back vanes to reduce the axial thrustand prevent the entrance of solids.

Strainer: The strainer is a flat plate strainer tomaximize draw down in a given sump depth. Openingsare sized to prevent the entrance of large solidscommonly ending up in open sumps.

Discharge Elbow: The elbow is designed for maximum hydraulic performance. Special designallows for fitting the pumps into the minimum possibleopening. Threaded connection to the discharge pipe

allows the pipe to be changed without removing thepump from the sump.

Column Pipe: Column pipe has flangedconnections, accurately machined to insure trueparallelism and accurately maintain steady bearingsconcentric with the shaft.

Shaft: Standard design uses a one-piece shaft to

insure accurate alignment. The shaft is precisionground, polished, and straightened to keep vibrationand deflection to a minimum. Standard bearingspans keep the shaft well below first critical speedfor all sizes.

Bearings: The thrust bearing is a grease-lubeddouble row angular contact ball bearing. It isshouldered and locked to the shaft and the housingenabling it to carry all of the thrust loads and some of the radial load. All fits are precision machined toindustry standards. The steady bearings are press fitsleeve bearings. Fits are designed for optimum lifeunder all operating conditions.

Seals: The standard 3171 has three seals.

An upper labyrinth seal is used to exclude dirtand water from the thrust bearing.

A lower grease seal is used below the thrustbearing to contain the grease and exclude anypossible contamination.

A carbon Teflon casing collar is installedimmediately behind the impeller in the casing tominimize recirculation back to the sump, therebymaximizing hydraulic efficiency.

Motor Support: Motor supports are castconstruction and precision machined to maintainproper alignment between the motor and pump shaftwith minimal shimming. Motor supports are designedfor vertical C-face motors as standard. P-Basesupports are available upon request as well as IECadapters.

Direction of Rotation: Rotation is clockwise lookingdown on the pump shaft.

GENERAL INFORMATION

PUMP DESCRIPTION

7/30/2019 3171 IOM

14/56

14 3171 IOM 4/06

Every pump has a Goulds nameplate that providesinformation about the pump. The tag is located onthe motor support. When ordering spare parts youwill need to identify the pump model, size, serial

number and the item number of the required parts.Part numbers can also be found on the Repair PartsData Sheet supplied with the original pump datapackage.

NAMEPLATE INFORMATION

Fig. 1

7/30/2019 3171 IOM

15/56

3171 IOM 4/06 15

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 thereceipt and freight bill. File any claims with thetransportation company as soon as possible.

STORAGE REQUIREMENTS

Short Term: (Less than 6 months) Goulds normalpackaging procedure is designed to protect thepump during shipping. Upon receipt, store thepump(s) in a covered and dry location.

Long Term: (More than 6 months) Preservativetreatment of the bearings and machined surfaces isrequired. Rotate shaft several times every threemonths making sure that the shaft does not stop inthe same place as it may develop a sag. Refer to

driver and coupling manufacturers for their recommended long term storage procedures. Storein a covered, dry location.

NOTE: Long term storage treatment can bepurchased with initial pump order.

Pump and components are heavy.Failure to properly lift and supportequipment could result in serious

physical injury or damage to pumps. Steel toedshoes must be worn at all times.

Use care when moving pumps. Lifting equipmentmust be able to adequately support the entireassembly. Position the pump where it can behandled without dragging the casing on the groundor moving the lifting equipment while the pump is off the ground. Use the lifting lugs supplied with theunit and suitable slings to lift the entire pump to avertical position. A tag line should be attached tothe casing end to prevent the pump from swingingand possibly causing damage or injury. Lower theunit into the sump. The motor should then behoisted into position using the lifting lugs on themotor and a suitable sling (Figs. 2, 3).

RECEIVING THE PUMP

7/30/2019 3171 IOM

16/56

16 3171 IOM 4/06

7/30/2019 3171 IOM

17/56

3171 IOM 4/06 17

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17SITE/FOUNDATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18WHEN PIT COVER IS BEING USED . . . . . . . . . . . . . . . . . . . . . 18NO PIT COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18MOTOR INSTALLATION AND COUPLING ALIGNMENT . . . . . . . . . . 19PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Equipment that will operate in a potentially explosive environment must be installed inaccordance with the following instructions.

All equipment being installed must be properly grounded to prevent unexpected staticelectric discharge. If not, a static electric discharge may occur when the pump is drainedand disassembled for maintenance purposes.

Service temperature in an ATEX classified environment is limited by Table 1 in the ATEXidentification section.

1. Remove all equipment from shippingcontainers.

2. Completely clean the underside of the supportplate and both sides of the optional pit cover (if supplied).

3. Remove any grease from machined surfacesif applicable.

Remove plastic shipping plugs from

the vent holes in the head columnand casing. Refer to Fig. 4 forlocations.

INSTALLATION

3

INSPECTION

A

AA

7/30/2019 3171 IOM

18/56

18 3171 IOM 4/06

The pump should be located where there isadequate space for installation, operation,maintenance, and inspection. Make sure there isadequate overhead clearance for installing andremoving the pump. There should be at least 1/2"clearance between the sides of the pump and anyportion of the pit.

Vertical sump pumps are normally bolted to aconcrete sump or steel tank. The supportingstructure must provide a permanent rigid supportfor the pumping unit(s) to eliminate any possiblevibration. Support plates and/or pit covers are notnormally grouted in place. The location and size of the mounting bolt holes are shown on the pumpoutline drawing provided with the pump datapackage. If anchor bolts are to be poured into theconcrete, we recommend a sleeve type as shownin Fig. 5 to allow for adjustment.

If access to the bottom of the pit cover is not possibleduring the installation process, the pump (less motor),support plate and pit cover must be assembled andinstalled as a unit.

1. The pit cover must be installed perfectly level toinsure that the pump remains plumb when installed.

2. Carefully lower pit cover on to foundation bolts.

3. Using as long a level as practical, level the pitcover in all directions with shims or wedges.

4. Hand tighten the anchor bolts, check the level andre-shim if necessary.

5. Tighten all anchor bolts in a star pattern to avoiddistorting the support plate.

6. If access to the bottom side is possible, carefullylower the pump and support plate onto the pitcover.

7. Install all bolts finger tight.

8. Check level on support plate and shim if necessary.

9. Tighten all bolts in a star pattern to avoid distortingthe support plate.

Vapor-Proof OptionThe vapor-proof option includes machined,gasketed fits between the support plate/pit cover and the pit cover/foundation. These gaskets mustbe installed to insure emissions performance. Thepit cover should be bolted to a metal sole platewith a machined surface to insure an air tight seal.

Standard Support Plates

1. Carefully lower the pump and support plate ontothe foundation bolts.

2. Level the support plate in all directions usingshims and wedges.

3. Hand tighten the anchor bolts, check the leveland re-shim if necessary.

4. Tighten all anchor bolts in a star pattern toavoid distorting the support plate.

5. Assure the support plate is level.

SITE/FOUNDATION

WHEN PIT COVER IS USED

NO PIT COVER

7/30/2019 3171 IOM

19/56

3171 IOM 4/06 19

A

A

A

Vapor-Proof OptionThe support plate/foundation fit is a gasketed fit.The support plate should be bolted to a metal soleplate with a machined surface to insure an air tightseal. Refer to Fig. 6 for standard layout.

Tank Flange Suppor t Plates

1. Mating flange on the tank must be level. Veryminor adjustments can be made with gasketmaterial between the two flanges.

2. Install all bolts finger tight.

3. Tighten all bolts in a star pattern to avoid anydistortion of the support plate.

Vapor Proof Option A gasket is supplied for installation between the

two flanges to insure an air tight fit.

The Model 3171 is designed to be used withNEMA Vertical C-face motors. P-Base motor adapters, and IEC motor adapters are available asoptions.

Installation

1. Install both coupling halves prior to mountingthe motor. Refer to the coupling manufacturersinstructions.

2. Using the lifting lugs on the motor, carefullylower the motor onto the pump and align thebolt holes.

3. Install the bolts finger tight.

4. Before the coupling is connected, the motor should be wired and the direction of rotationchecked. A rotation arrow is located on themotor support. Correct rotation for the 3171 isclockwise looking down from the driver at theimpeller.

Alignment of Flexible Coupling

Before beginning any alignmentprocedure, make sure driver power islocked out. Failure to lock out driver

power will result in serious physical injury.

Alignment procedures must befollowed to prevent unintendedcontact of rotating parts. Follow

coupling manufacturers installation andoperation procedures.

When installing in a potentiallyexplosive environment, ensure that the

motor is properly certified.

The coupling used in an ATEXclassified environment must beproperly certified.

Alignment of the pump and motor is of extremeimportance for trouble-free mechanical operation.Straight edge alignment by an experiencedinstaller proves adequate for most installations.For disc couplings and applications where it is feltthat alignment to tighter tolerances is desirable,use dial indicators. Standard dial indicator procedures would apply.

Straight Edge Alignment

1. Check for coupling alignment by laying astraight edge across both coupling rims at four

points 90 apart.2. Move motor until straight edge rests evenly at

each position. Repeat procedure until correctalignment is achieved.

3. Install flexible sleeve between the hubs per the manufacturers directions included with thepump data package.

4. Tighten all motor bolts.

MOTOR INSTALLATION AND COUPLING ALIGNMENT

7/30/2019 3171 IOM

20/56

20 3171 IOM 4/06

A

A

A

General

Guidelines for piping are given in the HydraulicInstitute Standards available from: Hydraulic

Institute, 9 Sylan Way, Parsippany, NJ, 07054-3802 and must be reviewed prior to pumpinstallation.

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

2. Piping runs should be as short as possible tominimize friction losses.

3. DO NOT connect piping to pump until theanchor bolts have been tightened.

4. Carefully clean all pipe parts, valves andfittings prior to assembly.

5. Isolation and check valves should be installedin the discharge line. Locate the check valvebetween the isolation valve and the pump inorder to permit inspection of the check valve.The isolation valve is required for inspectionof the pump and flow regulation. The checkvalve prevents pump damage due to reverseflow through the pump when the driver isturned off.

6. Increasers, if used, should be installed

between the pump and check valve tominimize friction losses through the checkvalve.

7. Cushioning devices should be used to protectthe pump from surges and water hammer if quick closing valves are installed in thesystem.

Suction Piping -For Optional Dry Pit, OutsideTank Mount, and Tailpipe Applications ONLY

NPSH A must always exceedNPSH R as shown on Goulds

performance curves receivedwith order. Reference Hydraulic Institutestandard for NPSH and pipe friction valuesneeded to evaluate suction piping.

1. The general requirement for the 3171 is toinstall an elbow at the pump. Long radiuselbows are recommended. If an elbow can beeliminated or moved further from the suction,it would be recommended to do this.

Never draw piping into placeby forcing at the flangedconnections of the pump.

This may impose dangerous strains on theunit and cause misalignment between pumpand driver. Pipe strain will adversely effect theoperation of the pump resulting in physicalinjury and damage to the equipment.

Pump must never be throttledon suction side.

2. Suction piping should never be a smaller diameter than the pump suction.

3. The pump should never be throttled on thesuction side.

4. Separate suction lines are recommendedwhen more than one pump is operating fromthe same source of supply.

5. Suction pipe must be free of air pockets.

6. Suction piping must slope upwards to thepump.

7. All joints must be air tight.

8. A means of priming the pump must beprovided. For outside tank mount and dry pit,this is usually accomplished by allowing thefluid level inside the tank/pit to rise above thecasing level. In tailpipe applications, thecasing must be submerged prior to startingthe pump.

9. For outside tank mount and dry pitapplications, an isolation valve should beinstalled in the suction line at least two pipediameters from the suction to permit closingthe line for pump inspection and maintenance.Isolation valve must be kept fully open duringoperation.

10. The entrance to the suction pipe must be keptadequately submerged below the free liquidsurface to prevent vortices and air entrainment.

Outside Tank Mount OnlyThe outside tank mount option has a columnassembly that allows the fluid coming through thelower bushings to flow up through the column andback through the connection at the top of thecolumn back to the tank. The pipe at the top of thepump column must be connected back to thesource tank to prevent fluid from entering thethrust bearing.

PIPING

7/30/2019 3171 IOM

21/56

3171 IOM 4/06 21

A

PREPARATION FOR START-UP . . . . . . . . . . . . . . . . . . . . . . . .21OPERATION . . . . . . . . . . . . . . . . . . . . . . . .23

The following options may be supplied with your pump. Refer to the original data package to seewhich options apply.

External Bearing Flush

There are five 1/4" NPT pipe plugs on thestandard support plate for connection of up to fiveflush lines. Pumps with more than five bearingswill have one for each bearing. Pumps with lessthan five bearings will still have five plugs, but onlythe required number will be connected to abearing. Remove the plugs from the holes that areconnected to flush lines. An external source of clean water capable of delivering 1-2 GPM toEACH bearing should be connected to the taps.

NOTE: The flush must be turned onpriortostarting the pump and left on until the pumpturns off.

Grease Lubricated Bearings

Grease lubricated bearings will have zerk fittingsinstalled for each bearing. Bearings are pre-lubricated at the factory. Unscrew the fittings andconfirm there is adequate grease in the line.Replace the fitting and add grease if necessary.

Bearings must be lubricated properlyin order to prevent excess heatgeneration, sparks and premature

failure.

Sealed Bearings

Sealed bearings have a lip seal installed above andbelow the bearing to exclude grit from the bearing(Fig. 7). Sealed bearings use a spring loadedgrease cup to lubricate the bearings (See AppendixV). The bearings are prelubricated at the factory,but the grease cups ship in a separate box toprevent shipping damage. The grease cups shouldbe filled with grease and screwed into the taps that

are connected to the bearings. They should berefilled with fresh grease as needed. Frequentinspection after startup is recommended to checkusage and establish the best relubrication interval.

OPERATION

4

PREPARATION FOR START-UP

7/30/2019 3171 IOM

22/56

22 3171 IOM 4/06

AA

A

A

APacked Upper Stuffing Box

Packed stuffing boxes are not allowedin an ATEX classified environment.

An upper stuffing box is installed for hightemperatures and vapor proof construction. Thestandard configuration is packed. Since no fluid isin the column to lubricate the packing, the packingis grease lubed. The packing is installed at thefactory prior to shipment. A screw type grease cupis provided for the packed box. Fill the cup withgrease and give the cap several turns to forcegrease into the packing. Fresh grease should beinstalled on a regular basis to insure constantlubrication for the packing. Frequent inspectionafter startup is recommended to check usage andestablish the best relubrication interval.

Mechanical Seal Upper Stuffing Box

The mechanical seal used in an ATEXclassified environment must beproperly certified.

The mechanical seal must always beproperly flushed. Failure to do so willresult in excess heat generation and

seal failure.

A mechanical seal is frequently supplied on upper stuffing box applications. The seal is installed andset at the factory. Cartridge seals may still have thesetting clips installed and should be removed. Refer

to the seal manufacturers guidelines for any specialrequirements for the particular seal provided. Somerequire oil lubrication from a bottle oiler, some aredry running, some may require external flush plans.Do not allow the seal to run dry unless it isspecifically designed for this.

Steam Jacket Pumps

The steam jacketed connections are located on thesupport plate. Connect the steam in line to anappropriate source of steam. The steamout/condensate return connections should be madeas dictated by the installation requirements. Asuitable trap should be used.

Float Controls

A variety of different float controls can be suppliedby Goulds. Refer to the float control installationinstructions provided with the controls for proper installation procedure. Procedures for some of themore common controls are provided in Appendix I.

Checking Rotation

Rotation should have been checked prior tocoupling alignment and installation. Refer to page17 Section 3 if this has not been done.

Check Impeller Clearance

Improper impeller adjustment couldcause contact between the rotatingand stationary parts, resulting in a

spark and heat generation.

The pump efficiency is maintained when theproper impeller clearance is set. The clearance isset at 0.015" off of the suction cover at the factory,but could change due to piping attachment. Refer to procedure on setting impeller clearance (seeSection 5 Preventive Maintenance).

Priming

Never start the pump until it has been properlyprimed. The pump casing should be fullysubmerged prior to starting the pump.

Pumps that are not self-priming mustbe fully primed at all times duringoperation.

Do not run the pump dry, as this maydamage the pump and/or steadybearings.

For Dry Pit/Outside tank mount units:

1. Suction supply line must have adequate fluidhead to prime the pump.

2. Slowly open the suction valve.

Starting The Pump

1. Before the pump is started, the externalbearing flush (if specified) must be started.

2. Make sure the pump shaft is freely rotating.

3. Partially open the discharge valve.

4. Start driver.

Observe pump for high vibrationlevels, bearing temperature, andexcessive noise. If normal levels are

exceeded, shut down, and resolve.

7/30/2019 3171 IOM

23/56

3171 IOM 4/06 23

AA

A

A

A AStart up Precautions1. All equipment and personal safetyrelated devices and controls must beinstalled and operating properly

2. To prevent premature pump faiure at initialstart up due to dirt or debris in the pipesystem, ensure the system has beenadequately cleand and flushed

3. Varialbe speeed drivers should be broughtto rated speed as quickly as possible

4. Variable speed drivers should not beadjusted or checked for speed governor oroverspeed trip settings while coupled to thepump at initial start up If settigs have notbeen verified, uncouple the unit and refer todriver manufacturers instructions for

assistance.5. Pumpage tempartatures in excess of 200F

will reuire warmup of pump prior tooperation. Circulate a small amount of pumpage throught the pump until thecasing temperature is within 100F of thepumpage temperature and evenly heated.

When starting pump,immediately observepressure gauges. If

discharge pressure is not quickly attained,stop driver, reprime and attempt to restart.

Damage occurs from:

1. Increased vibration levels- affects bearings, stuffing box or sealchamber and mechanical seal.

2. Increased radial loads - Stresses on shaftand bearings.

3. Heat build up - Vaporization causingrotating parts to score or seize.

4. Cavitation - Damage to internal surfaces of pump.

Serious damage may result if thepump is run in the wrong direction.

Operation of the unit without properlubrication will cause bearing failure,and pump seizure.

General Considerations

Always vary capacity with a regulating valve in thedischarge line.

Driver may overload if the pumpage specificgravity is greater than originally assumed or therated flow rate is exceeded.

Always operate at or near the rated conditions toprevent damage resulting from cavitation or recirculation.

Always vary capacity withregulating valve in thedischarge line. NEVER

throttle flow from the suction side.

Operating At Reduced Capacity

Operating a vertical sump pumpnear shut-off or with a dischargevalve closed will damage the pump.

Damage occurs f rom:

Unbalanced radial loads subjects the shaftto abnormal deflection causing acceleratedlower steady bearing wear.

Increased vibration levels affects bearings,seals, and noise.

Cavitation causes damage to the internalsurfaces of the pump.

Heat Build-Up (Dry Pit, Outside Tank Mount) vaporization of the fluid can causerotating parts to score and seize.

When operating at reduced capacities cannot be

avoided, a simple method of relieving the pump of undue strain is to extend a bypass line from thepump discharge back to the sump or tank. Athrottle valve or orifice plate should be placed inthe bypass line and sufficient flow returned toallow the pump to operate near its rated point.The bypassed liquid should always be returned tothe source of supply and discharged below theliquid level to avoid air entrainment.

OPERATION

7/30/2019 3171 IOM

24/56

24 3171 IOM 4/06

A

AA

A

AFinal Alignment/Clearance Check1. Run the unit under actual operating conditionsfor a sufficient length of time to bring thepump and driver up to operating temperature.

2. Check alignment and impeller clearance while

the unit is still hot per the appropriateprocedures.

3. Re-install coupling guard.

The coupling guard used in an ATEXclassified environment must beconstructed from a non-sparking

material.

Driver may overload if thepumpage specific gravity(density) is greater than

originally assumed, or the rated flow rate isexceeded.

Always operate the pump at ornear the rated conditions toprevent damage resulting

form cavitation or recirculation.

Observe pump for vibrationlevels, bearing temperatureand excessive noise. If

normal levels are exceeded, shut down andresolve.

Do not operate pump belowminimum rated flows or withsuction and/or discharge

valve closed. These conditions may create anexplosive hazard due to vaporization of pumpage and can quickly lead to pump failureand physical injury.

7/30/2019 3171 IOM

25/56

3171 IOM 4/06 25

A

A

GENERAL COMMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25MAINTENANCE OF BALL BEARINGS/GREASE LUBRICATED STEADY BEARINGS . . . . . . . . . . . . . . . . . . . 26IMPELLER CLEARANCE SETTING . . . . . . . . . . . . . . . . . . . . . . . . . 27TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

A routine maintenance program can extend the life of your pump. Well maintainedequipment will last longer and require fewer repairs. Accurate records should be kept asthey will identify trends and help pinpoint potential causes of problems.

ROUTINE MAINTENANCE Bearing lubrication

Discharge Pressure

Temperature Monitoring

Vibration Analysis

Seal Monitoring (when applicable)

ROUTINE INSPECTIONS Check for unusual noise, vibration and thrust

bearing temperatures.

Check float controls for proper setting andoperation.

Inspect pump and piping for leaks.

Check grease for thrust bearing. Refer toTable 1 for lubrication intervals.

Grease steady bearings if applicable, adjustgrease cups if supplied.

The preventive maintenance sectionmust be adhered to in order to keepthe applicable ATEX classification of

the equipment. Failure to follow theseprocedures will void the ATEX classificationfor the equipment.

Inspection intervals should beshortened appropriately if thepumpage is abrasive and/or

corrosive, or if the environment is classifiedas potentially explosive.

3 MONTH INSPECTIONS Check anchor bolts for tightness.

If pump has been left idle, check carbon steelshafts (if applicable) for rust and seizing by

rotating the shaft several turns. Replace if required.

Ball Bearing Grease should be changed atleast every 3 months (2000 hours) or moreoften (See Table 1) if there are any adverseconditions which may contaminate the grease.Grease should be injected while turning theshaft until fresh grease comes out.

Check shaft alignment and realign if necessary.

ANNUAL INSPECTIONS

Check the pump capacity, pressure andpower. If pump performance does not satisfyyour process requirements and the processrequirements or piping system have notchanged, the pump should be disassembled,inspected, and worn parts should be replaced.If there is no sign of wear, a system inspectionshould be done.

PREVENTIVE MAINTENANCE

GENERAL COMMENTS

MAINTENANCE SCHEDULE

7/30/2019 3171 IOM

26/56

26 3171 IOM 4/06

A

A

Table 1 Lubricating Intervals in

Operating Hours

Group

Below

1800RPM 1800RPM 3000RPM

3600RPM

S/ST 2000 2000 1200 750

M/MT 2000 1800 800 450

L 2000 1200 N/A N/A

The Model 3171 comes with a grease lubricatedThe original grease from the factory is a lithium

based duplex thrust bearing. The bearing is pre-lubricated at the factory. Regrease the bearing per the schedule in

RE-GREASE PROCEDURENOTE: When regreasing, there is a danger of impurities entering the bearing housing. Thegrease, greasing device, and fittings must beclean.

1. Wipe dirt from grease fittings.

2. Check relief port 180 from fitting to make sureit is open.

3. Fill the grease cavity through the fitting untilfresh grease comes out the relief hole.

4. Ensure the relief port closes.

NOTE: The bearing temperature usually risesafter regreasing due to an excess supply of grease. Temperatures will return to normal afterthe pump has run and purged the excess fromthe bearings, usually two to four hours.

For most operating conditions, a lithium basedgrease of NLGI consistency No. 2 is recommended.

This grease is acceptable for bearing temperaturesof 5 F to 230 F (-15 C to 115 C). Bearingtemperatures are generally about 20 F (18 C)higher than the bearing housing outer surface.

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

a polyurea based grease.

The original grease from the factory is a lithiumbased NLGI 2. Table 2 lists some various

manufactures compatible greases.

Temperatures extremes (either high or low) mayrequire a different grease.

NOTE: If it is necessary to change the greasetype or consistency, the bearing must beremoved and all the old grease eliminated fromthe housing and bearing.

Bearings must be lubricated properlyin order to prevent excess heatgeneration, sparks and premature

failure.

Throughout this section on bearinglubrication, different pumpagetemperatures are listed. If the

equipment is ATEX certified and the listedtemperature exceeds the applicable valueshown in Table 1 under ATEX identification,then that temperature is not valid. Should thissituation occur, please consult with yourITT/Goulds representative.

Table 2 Mobil Mobilith AW2

Amoco Amolith EP2

Ashland Multilube EP2

Exxon Unirex N2

Shell Alvania EP LF2

Unocal Unoba EP2

Chevron Dura-Lith EP NLGI2

MAINTENANCE OF BALL BEARINGS /GREASE LUBRICATED STEADY BEARINGS

7/30/2019 3171 IOM

27/56

3171 IOM 4/06 27

Lock out driver power to preventelectric shock, accidental startup andphysical injury.

DIAL INDICATOR METHOD1. Remove coupling guard.

2. Remove coupling if required.

3. Set indicator so the indicator button contactseither the shaft end or the face of the pumpcoupling hub (Fig. 8).

4. Loosen jam nuts (415) on jack bolts (370D).Back off jack bolts several turns.

5. Turn all locking bolts (370C) in several turnsuntil impeller contacts the suction cover (182).Turn shaft to insure contact has been made.

6. Set dial indicator at zero.

7. Tighten the jam bolts (370D) and loosen thelocking bolts (370C) to move the impeller away from the suction cover until the dialindicator shows that a 0.015" clearance hasbeen obtained.

8. Tighten the jam nuts (415) and the lockingbolts evenly.

9. Check the shaft for free rotation.

10. Replace coupling.11. Replace coupling guard.

FEELER CAUGE METHOD

1. Remove coupling guard.

2. Remove coupling if required.

3. Loosen jam nuts (415) on jack bolts (370D).Back off jack bolts several turns.

4. Turn all locking bolts (370C) in several turnsuntil impeller contacts the suction cover (182).Turn shaft to insure contact has been made.

5. Loosen locking bolts (370C) until a 0.015"feeler gauge can be inserted between theunderside of the bolt head and the bearingshell (134) See Fig. 9.

6. Tighten jack bolts (370D) evenly until thebearing shell (134) is tight against the lockingbolts. Make sure all bolts are tight. Tighten

jam nuts (415).

7. Check the shaft for free rotation.

8. Replace coupling.

9. Replace coupling guard.

Both of the above methods set the impeller 0.015"away from the suction cover, giving the requiredclearance for ambient temperatures. For hightemperatures, it is recommended that thisprocedure be repeated after bringing the pump upto temperature prior to start-up.

IMPELLER CLEARANCE SETTING

5

7/30/2019 3171 IOM

28/56

28 3171 IOM 4/06

Problem Probable Cause Remedy

Pump not primed.No liquid in pit. Fill pit above casing.On dry pit units, casing and suctionpipe must be completely filled.

Discharge head too high. Check total head, particularly frictionloss.

Speed too low. Check motor speed.

Wrong direction of rotation. Check rotation.

Impeller, discharge pipe, strainer completely plugged. Remove obstructions or backflush.

Suction pipe problems (whereapplicable). Check suction lift, it may be too high.

Line may be plugged.

No Liquid delivered.

Inadequate NPSH available. Check NPSH available and required.

Impeller, discharge pipe, or strainer partially plugged. Remove obstructions or backflush.

Wrong direction of rotation. Check rotation.Discharge head higher thananticipated.

Check total head, particularly frictionloss.

Worn or broken impeller. Inspect and replace if necessary.Suction pipe problems (whereapplicable). Check suction lift, it may be too high.

Line may be plugged.Speed too low. Check motor speed.

Air or gasses in liquid. Increase submergence, rearrangepiping to prevent entrained air.

Pump not producing ratedflow or head.

Inadequate NPSH available. Check NPSH available and required.

Float controls misadjusted. Check float controls.

Air or gasses in liquid. Increase submergence, rearrangepiping to prevent entrained air.

Strainer plugged. Check sump for large items that thepump may be picking up. Bearingsrun hot.

Pump starts then stopsrunning.

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

Improper alignment. Realign pump and driver.Bearings run hot.

Improper lubrication. Check lubricant for suitability andlevel.

Foundation not rigid.Tighten hold down bolts, stiffenfoundation.

Improper pump / driver alignment. Align shafts.

Partially clogged impeller causingunbalance. Backflush pump to clean impeller.

Binding, loose, broken rotatingparts. Inspect and replace as required.

Bent shaft. Straighten or replace.

Pump is noisy or vibrates.

Worn bearings. Inspect and replace as required.

TROUBLESHOOTING

7/30/2019 3171 IOM

29/56

3171 IOM 4/06 29

Problem Probable Cause Remedy

Pump is noisy or vibrates,contd

Discharge piping or suction pipingnot anchored or properlysupported.

Anchor and support per HydraulicInstitute standards.

Pump is cavitating. Correct system problem.Head lower than rating. Pump ispumping too much liquid. Install throttle valve or trim impeller.

Liquid heavier than expected. Check specific gravity andviscosity.

Rotating parts binding. Check internal wear parts for proper clearances.

Motor requires excessivepower.

Speed too high. Check motor.

TROUBLESHOOTING

7/30/2019 3171 IOM

30/56

30 3171 IOM 4/06

7/30/2019 3171 IOM

31/56

3171 IOM 4/06 31

A

GREASE LUBRICATED STEADY BEARINGS . . . . . . . . . . . . . . . . . . . 31REQUIRED TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DISASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31INSPECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34REASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Wrenches Bearing Puller Dial Indicator

Screwdriver Brass Drift Punch Micrometer

Lifting Sling Snap-Ring Pliers Cleaning Agents

Rubber Mallet Torque Wrench with Sockets Feeler Gauges

Induction Bearing Heater Allen Wrenches Hydraulic Press

Pump components can be heavy.Proper methods of lifting must beemployed to avoid physical injury

and/or equipment damage. Steel toed shoesmust be worn at all times.

When handling hazardousand / or toxic fluids, properpersonal protective

equipment should be worn. If pump is beingdrained, precautions must be taken to preventphysical injury Pumpage must be handledand disposed of in conformance withapplicable environment regulations.

The 3171 may handle hazardousand/or toxic fluids. Skin and eyeprotection are required. Precautions

must be taken to prevent physical injury.Pumpage must be handled and disposed of inconformance with applicable environmentalregulations.

Lock out power supply to drivermotor to prevent accidental startupand physical injury.

1. Shut off all valves controlling flow to and frompump.

Operator must be aware of pumpageand safety precautions to preventphysical injury.

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

3. Disconnect all auxiliary piping.

4. Remove coupling guard.

5. Disconnect coupling.

6. Remove motor bolts (371) (Fig. 10).

7. Place sling on motor lifting lugs and removemotor.

8. Remove support plate anchor bolts.

9. Attach eyebolts to the support plate.

DISASSEMBLY & REASSEMBLY

REQUIRED TOOLS

DISASSEMBLY

7/30/2019 3171 IOM

32/56

32 3171 IOM 4/06

10. Using slings of suitable capacity, lift pumpfrom the sump. Refer to Installation section for proper handling procedure.

Always use equipment adequate tolift the pump. Follow the equipmentmanufacturers safe operating

guidelines.

11. Lay the pump horizontally on proper supportswhere there is sufficient clearance todisassemble the pump.

12. Remove the strainer (187) by removing bolts

(317N) (Fig. 11).13. Remove suction cover (182).

14. Remove suction cover gasket (351) anddiscard. Replace the gasket duringreassembly.

15. Remove discharge elbow-casing bolts (370H).

16. Disconnect any steady bearing flush tubing(190).

Removal of Impeller

When removing impeller, wear heavywork gloves to prevent cuttinghands on the sharp edges of

impeller vanes.

7/30/2019 3171 IOM

33/56

3171 IOM 4/06 33

17. Remove impeller screw (198) and impeller washer (199).

18. Remove impeller (101) from shaft (122) (Fig. 12).Save key (178) for reassembly unless it isdamaged. Removal can best be accomplished inone of two ways.

18a. Loosen locking bolts (370C) and jam nuts(415). Tighten jacking bolts (370D) untilimpeller is pushed off the shaft (see Fig.9 page 23), or

18b. Use a suitable puller that clamps theoutside edge of the impeller and pushesagainst the shaft.

19. Remove column to casing bolts (370G) andremove casing (100) from column (Fig. 4).Remove casing/discharge elbow gasket (351A)and discard.

L Group Only

19a. Remove casing (100) to adapter (108)bolts. Remove casing. Do not removecasing collar (155) at this time. (Notshown)

19b. Remove adapter (108) to column bolts.Remove adapter. Do not remove steadybearing (197) at this time.

NOTE: It is recommended that all columnconnections and motor support be match markedprior to disassembly to insure correct positioningof these parts during reassembly.

Column Disassembly

If your pump has no intermediate steady bearings(only one column section), you will not have anycolumn extension (306) or steady bearing housing

20. Remove column to steady bearing housingbolts (372B). Starting at the casing end of thepump, remove column extensions (306), steadybearing housings (213), and deflectors (123)one at a time. While removing column sections,support the shaft to prevent bending. There isusually no need to remove the head column(192). Do not remove steady bearings at thistime. Refer to inspection procedures prior toremoval.

21. Remove pump half coupling hub (233) and key.

22. Remove locking bolts (370C) and slide bearingshell (134) assembly with shaft out through themotor support (240).

7/30/2019 3171 IOM

34/56

34 3171 IOM 4/06

Two people should handle any shaftover 9 long as improper handling canbend a shaft.

23. Remove labyrinth seal (332A). A screwdriver isrequired to pry the seal from the bearing shell(134).

NOTE: It is recommended that thelabyrinth seal be replaced every time thepump is inspected.

24. Remove bearing retaining ring (361A). Slidebearing shell (134) off the bearing and shaft.

25. Remove locknut (136) and lockwasher (382).

26. Using a suitable bearing puller, remove bearing(112).

NOTE: Save bearing for inspection.

27. Set the shaft on a table where it is adequatelysupported.

Two people should handle any shaftover 9 long as improper handling canbend a shaft.

28. There is usually no need to tear the pump downany further unless parts are known to be bad.

Parts for the Model 3171 must be inspected to thefollowing criteria before they are reassembled toinsure the pump will run properly. Any part notmeeting the required criteria should be replaced.

Casing and Suction Cover

1. The casing (100) and suction cover (182)should be inspected for excessive wearing or pitting. They should be replaced if theyexceed.

a. Localized wear or grooving greater than

1/8 in. (3.2mm) deep.b. Pitting greater than 1/8 in. (3.2mm) deep.

2. Inspect casing gasket seat surfaces for irregularities.

3. Check I.D. of casing collar (155) and steadybearing (197) per the dimensions in Table 3. If

I.D. is greater than allowable, remove snapring (369) and use a suitable hydraulic pressto remove these items for replacement. If sealed bearings have been provided, lip seals(333H) must be removed also.

4. Inspect casing-to-column connection area for any cracks or excessive corrosion damage.

Replace if any of these conditions exist.

INSPECTIONS

7/30/2019 3171 IOM

35/56

3171 IOM 4/06 35

Table 3 Steady Bearing Tolerances

Bearing I.D.

(pressed in place) Housing Bore

Running Clearance

(1/2 diametrical clearance) BearingMaterial S/ST M/MT L S/ST M/MT L S/ST M/MT LCarbon 1.132-1.134 1.633-1.635 2.258-2.260 1.621-1.623 2.121-2.123 2.994-2.996 0.0055-0.0035 0.006-0.004 0.0065-0.004

Bronze 1.129-1.131 1.629-1.631 2.256-2.258 1.621-1.623 2.121-2.123 2.994-2.996 0.004-0.002 0.004-0.002 0.0055-0.003Fluted

Elastomer 1.126-1.130 1.627-1.632 2.253-2.257 1.621-1.623 2.121-2.123 2.994-2.996 0.0035-0.0005 0.0045-0.001 0.005-0004

Rulon 1.132-1.134 1.633-1.635 2.258-2.260 0.0055-0.0035 0.006-0.004 0.0065-0.004

S/ST M/MT L S/ST M/MT L S/ST M/MT LCasingCollar 1.183-1.190 1.687-1.685 2.299-2.306 1.811-1.813 2.243-2.245 3.243-3.245 0.0335-0.029 0.031-0.0265 0.029-0.0245

NOTE: Bearing I.D. prior to pressing into housing will be slightly larger to allow for I.D. shrinkageafter it is pressed in place.

Impeller

1. Inspect impeller (101) vanes for damage.Replace if grooved deeper than 1/16" (1.6mm)or if worn evenly more than 1/32" (0.8mm).

2. Inspect back pumpout vanes for damage.Replace if worn more than 1/32" (0.8mm).

3. Inspect leading and trailing edges of the vanesfor pitting, erosion or corrosion damage.

Column Sections

1. Inspect column section(s) (306, 192) for anycracks or excessive corrosion damage. Replaceif any of these conditions exist.

Steady Bearing Housings

1. Check I.D. of steady bearing (197) per thedimensions in Table 3 . If I.D. is greater thanallowable, remove snap ring (if used) (369) anduse a suitable hydraulic press to remove thisitem for replacement. If sealed bearings havebeen provided, lip seals (333H) must beremoved also.

2. Check bore of steady bearing housing (213) per Table 3. If bore is excessive, replace.

Shaft1. Check the thrust bearing fit. If it is outside

the tolerance in Table 4 , replace the shaft(122).

2. Check the steady bearing areas. If more than0.002" of wear exists, replace the shaft.

3. Check the shaft straightness. If any of thevalues exceed the values in Table 5, replacethe shaft.

Table 5

Shaft Runout Tolerances Group CouplingEnd Shaft Body

Impeller End

All 0.002 0.0005/ft 0.005"

1. Inspect bearing shell (134) bore according tothe dimensions in Table 2 , and replace if dimensions exceed values found in Table 2 .

2. Remove lower grease seal (133). It is alwaysrecommended that the seal be replaced atevery overhaul.

3. Visually inspect for cracks and pits. Payparticular attention to the snap ring groove.

Table 4Thrust Bearing Fits

Group Shaft O.D. Shell I.D.

S/ST 0.9848/0.9844 2.4416/2.4409

M/MT 1.5755/1.5749 3.5442/3.5433

L 2.1660/2.1655 4.7253/4.7240

7/30/2019 3171 IOM

36/56

36 3171 IOM 4/06

Ball Bearing Motor Support

1. Ball bearing (112) should be inspected for contamination and damage, the condition of the bearing will provide useful information onoperating conditions in the bearing shell.Lubricant condition should be noted. Bearingdamage should be investigated to determinecause. If cause is not normal wear, it shouldbe corrected before the pump is returned toservice.

DO NOT RE-USE BEARINGS.

Motor Support1. Inspect motor support (240) for any cracks or

excessive corrosion damage. Replace if anyof these conditions exist.

Assembly of Motor Support, Head Column andSupport Plate

1. Attach motor support (240) to support plate(189) with bolts (370J).

2. Attach head column (192) to motor support withbolts (370M). Vent holes should be closer tothe motor support.

Optional With Stuffing Box Design

1. Attach stuffing box (221) to support plate (189)with bolts (370L).

2. Attach motor support (240) to stuffing box withbolts (370J).

3. Attach head column (192) to stuffing box withbolts (370M). Vent holes should be closer tothe motor support.

Assembly of Rotat ing Element

Shafts can be damaged by improperhandling. Extreme care should be taken atall times. It is recommended that shafts

over 9 long be handled by two people at all timesto prevent possible bending.

1. Install retaining ring (369A) on shaft (122).

NOTE: S/ST groups do not use the 369A retainingring.

2. Install thrust bearing (112) on shaft.

NOTE: There are several methods for installingbearings. The recommended method is to use aninduction heater that heats as well asdemagnetizes the bearing.

Use insulated gloves when using abearing heater. Bearings will get hot andcan cause physical injury.

3. Install lockwasher (382) on shaft (122). Place tangof lockwasher in keyway of shaft.

4. Thread locknut (136) onto shaft. Tighten locknutuntil snug. Bend any tang of the lockwasher intoone of the slots on the locknut. Tighten the locknutif necessary to align a lockwasher tab with alocknut slot.

5. Press grease seal (333) into bearing shell (112).6. Slide bearing shell onto pump end of shaft and

over the bearing.

7. Insert retaining ring (361A) in bearing shell groovekeeping flat side against bearing.

8. Slide labyrinth seal (332A) over coupling end of shaft. Press into bearing shell until it is flush.

REASSEMBLY

7/30/2019 3171 IOM

37/56

3171 IOM 4/06 37

9. With the support plate in a vertical position,slide the shaft horizontally through the motor support. Support the shaft and column withsuitable stands.

10. Install hold down bolts (370C) and jackingbolts (370D) with jam nuts (415).

Assembly of Column (when required)

When intermediate steady bearings are required,there will be additional column extensions (306)and steady bearing housings (213) required.

1. Prepare the steady bearing housingassembly(s) if required. Remove snap ring(369) if used. Using a hydraulic press, pressout old steady bearing (197). Press in newsteady bearing. Snap ring (369) is no longer required due to the fits. If your pump hasthese, it is not necessary to put them back in.The snap ring is still used on sealed bearings.Refer to Fig. 7 if you have this connection.

NOTE: The steady bearing does not have to becentered exact ly nor do the holes in thebearing have to line up with the holes in thehousing. There is a recessed area on theinside of the housing (213) that allowslubricants to find the opening in the bearing.

2. Slide casing assembly onto shaft. Seat casing

flange against column flange. Make suredischarge nozzle is aligned with the dischargepipe hole in the support plate. Install bolts(371G).

3. Add a film of oil to the shaft and place theimpeller key (178) and impeller (101) on theshaft.

4. Make sure all of the bearing shell bolts (370C,370D) are completely backed off. Install theimpeller washer (199) and impeller screw(198). Tightening the impeller screw will seatthe impeller on the shaft. The impeller screwhas a nylon insert to lock it in place. Do notexceed the following torque values whentightening the impeller screw:

S/ST Group 500 in. lb.

M/MT, L Groups 900 in. Lb .

5. Install suction cover gasket (351).

6. Install suction cover (182).

7. Install strainer (187) with bolts 317N.

NOTE: Alloy strainers have extra heavy spacerwashers (533) between the strainer and thesuction cover. If the unit is supplied with alower float control guide arm (366), an extralong bolt is used on this hole.

8. Check the axial travel of the impeller using theimpeller adjustment procedure. If the travel isless than 0.030", extra gaskets (351) shouldbe added to obtain the minimum travel.

9. Install discharge elbow gasket (351A) anddischarge elbow (315) using bolts (370H).

Accurate alignment of the elbow is critical toinsure there is unobstructed flow through theconnection.

10. Install discharge pipe (195), pipe nuts (242)and flange (195S if used). Make sure the pipenuts are tight and that no strain has beenplaced on the pump. Rotate shaft by hand toassure there is no binding.

11. Connect all auxiliary piping.

12. Replace the pump half coupling hub (233).

13. Lubricate the pump bearings.14. Follow directions in Section 2 and 3 for

Installation and Operation .

7/30/2019 3171 IOM

38/56

38 3171 IOM 4/06

Model 3171

7/30/2019 3171 IOM

39/56

3171 IOM 4/06 39

7/30/2019 3171 IOM

40/56

40 3171 IOM 4/06

7/30/2019 3171 IOM

41/56

3171 IOM 4/06 41

7/30/2019 3171 IOM

42/56

42 3171 IOM 4/06

7/30/2019 3171 IOM

43/56

3171 IOM 4/06 43

Square D 9036 Simplex and 9038 Duplex

A single float and rod assembly is used with the9036 float switch on a simplex unit or the 9038duplex alternator. Refer to manufacturers wiringdiagram for correct wiring of the switch. See Fig. 1 for the basic mechanical layout.

1. If a pit cover is supplied by Goulds with theIf a pitcover is supplied by Goulds with the pumps, theholes for the float switch support pipe (435) andthe upper rod guide (337) will be located andinstalled by the factory. If the pit cover is to besupplied by others, it will be necessary to locate,drill, and tap the holes prior to installing theswitch. See Fig. 19 for the hole size and locatingprocedure.

Float Controls

Appendix I

7/30/2019 3171 IOM

44/56

44 3171 IOM 4/06

2. Attach the lower guide arm (366) and the floatrod guide (336) to the correct suction cover bolt (based on layout) prior to installing thepump in the sump.

3. Thread the float switch support pipe (435) andthe upper rod guide (337) into the pit cover.

4. Attach float switch bracket (398) to the floatswitch support pipe.

5. Install the float rod (334), collars (335), andfloat (342) as shown in Fig. 20.

The on and off levels are controlled by adjustingthe collars (335). As the liquid level rises, the floatrises to contact the upper collar and the upwardmovement of the float rod causes the mechanicalswitch inside the control to close, completing thecircuit to the starter. Operation continues until the

liquid level drops low enough for the float tocontact the lower collar. This pulls the rod downopening the switch and turning off the pump.

The Square D 9038 duplex alternator is installedthe same as above. The difference is in theoperating sequence. The first pump will start asthe water level rises allowing the float to contactthe upper collar. When the water level drops downand shuts off the first pump, a lever arm inside the

control mechanically switches to the second pumpand it will come on for the next cycle.

Should the first pump fail to keep up with demand,or not come on at all, a continued rise in the levelwill turn both pumps on. Both pumps will run untilthe low water level is reached. Should both pumpsbe unable to keep up with the demand, anoptional high water alarm switch can be suppliedin the alternator to close a switch if the water levelrises past the second pumps on level. This switchcan be wired into a customer supplied alarm hornor light.

APEX High Level Alarm

The APEX high level alarm is an independentdevice used to sense fluid level and close a switchactivating a separate alarm. The switch ismounted on a pipe above the support plate (Fig.21). The pipe must extend into the sump 4-6"below the required actuation point. As the liquidlevel rises in he pipe, trapped air causes bellowsinside the switch to inflate and trips a microswitch. The switch can then activate a light, horn,relay, solenoid valve, or other electric device.

7/30/2019 3171 IOM

45/56

3171 IOM 4/06 45

Magnetrol Displacer TypeLiquid Level Switch

These switches offer a wide choice of control andalarm configurations. They are ideally suited for vapor proof installations as there are no external

moving parts to seal. The switch is closed by amagnetic seal inside a sealed tube. Switchoperation is controlled by the buoyancy of weighted displacers suspended on a spring. Asliquid level rises, the resulting change in buoyancyforces moves the spring upwards. The springmovement causes a magnetic sleeve to attract apivoted magnet, closing the actuating switch.Refer to manufacturer-supplied installation guidefor proper switch setting and installation.

Float Ball Switches

Float balls are individual switches that are used inmultiple configurations to control the pump circuit.They are suspended in the sump to the desiredcontrol level. When the fluid level rises to the float

ball, the switch begins to float. The float is either anchored to a pipe or weighted, allowing theswitch to tilt when the fluid continues to rise. thetilting of the float closes a switch that can be usedto turn the pump on, activate a high level alarm, or control any other electrical device.

7/30/2019 3171 IOM

46/56

46 3171 IOM 4/06

7/30/2019 3171 IOM

47/56

3171 IOM 4/06 47

The Model 3171 is normally a sealless design.When temperatures exceed 180 F., it isnecessary to move the thrust bearing away fromthe heat source in the sump. This is accomplishedby adding the upper stuffing box. Air is thenallowed to circulate around the bearing keeping itcool. The upper stuffing box is also used to

minimize vapor emissions when handlingcontrolled substances. Proper installation andmaintenance of a vapor proof pump along with thecorrect sealing device can give you vapor retardent installations.

U er Stuffin Box and Va or Proof Construction

Appendix II

7/30/2019 3171 IOM

48/56

48 3171 IOM 4/06

Packed Stuffing Box

The stuffing box is packed at the factory. Thepacking is lubricated by a grease cup suppliedwith the pump.

1. Fill the grease cup with any lithium based #2grease.

2. Install the grease cup on the tapped openingon the stuffing box.

3. Turn the cap on the grease cup several turnsto inject grease into the packing.

4. Make sure gland nuts are finger tight.

Operation and Maintenance

1. Keep the grease cup full of grease at alltimes.

2. Periodically make several turns on cap on thegrease cup injecting fresh grease into thestuffing box. Lubrication interval will varydepending upon the temperature and glandtightness. Experience will dictate the bestinterval for your service. Start by checking the

pump daily, and extend the interval asrequired until you are comfortable that theproper maintenance interval has beenachieved.

3. Do not over tighten the gland as this will leadto shaft damage. The pump is sealing onlyvapors so finger tight is adequate.

Packing Replacement

1. Should it become necessary to replace thepacking, the sequence is three rings of packing, lantern ring and then two rings of packing followed by the gland.

Mechanical Seals

When mechanical seals are furnished, amanufacturers reference drawing is supplied withthe pump data package. This drawing must be

kept for future use when performing maintenanceand adjusting the seal. If oil lubed seals aresupplied, the seal faces must be lubricated by oilat all times.

7/30/2019 3171 IOM

49/56

3171 IOM 4/06 49

Installation

1. Prior to installing the pump in the sump,familiarize yourself with the location of thesteam lines. There are three connectionsabove the support plate. Two steamconnections, and one condensate returnconnection. The condensate returnconnection is connected to the bottom of thedischarge pipe jacket. The steam connectionsare connected to the tops of the column anddischarge jackets. The steam lines can beconnected in one of two ways:

1a. Both lines can be used as steam in. Thiswould be the preferred method.

1b. One line can be used as steam in, with thesecond line being used as a feed through toadditional pumps. This method should beused only if absolutely necessary as it will bedifficult to control the steam at subsequentpumps.

2. Prior to installing the pump, check the fittingsfor leaks. The jackets are hydrotested by thefactory at 100 psi prior to shipment, however,

tube fittings may become loose in transit. Useplant air or high pressure water. If using air tocheck for leaks, use a soap solution at each

joint and look for air bubbles.

Use proper safety precautionswhen dealing with highpressure air/water.

3. Minimum recommended steam pressure is 35psi. Less than ideal conditions will requirehigher pressure steam to keep the correcttemperature.

4. Follow the procedures for the standardconstruction unit.

Operation

1. After the pump is brought to temperature for the first time, shut the unit down temporarilyand re-adjust the impeller clearance. SeeSection Four. Cold clearance is set at thefactory prior to shipment.

Refer to the IOM for all operating procedures.

Steam Jacketed Molten Sulfur Construction

Appendix III

7/30/2019 3171 IOM

50/56

50 3171 IOM 4/06

7/30/2019 3171 IOM

51/56

3171 IOM 4/06 51

The enclosed line shaft design lends itself extremely well for applications where abrasivesare present in the pumpage, or when a bearinglubricant other than the pumpage is required.

The main feature of this modified design is apositive lubrication system for all bearingsrequiring a minimum of lubrication fluid due to thebushing located at the bottom of the columnadapter housing directly above the impeller.

The fluid must run continuously toinsure flow out of the column at alltimes. If the flush s tops, the fluid in

the sump can back up into the columncontaminating the bearings.

The lubricant is injected at the lubrication lineconnection on the top of the support plant and, viaa short tube, enters the column directly below thesupport plate. The fluid is also injected into thelantern ring in the stuffing box for packinglubrication. The lubricant is forced down the

column, passing through each bearing until itreaches the floating bushing. The floating designallows the bushing to follow shaft runout, thuseliminating excessive wear on the shaft or bushing.

Leakages (flows) across the bushing for certainpressure differentials are shown below. Higher pressures will result in higher leakages.

Pressure Differential Approximate Leakage

(PSI) (GPM)3 0.305 0.44

7.5 0.60

Standard materials of construction of the floatingbushing are 18-8 stainless steel housing andspring with a glass filled Teflon

bushing. Flushtubing is steel as standard.

Enclosed Line Shaft

Appendix IV

7/30/2019 3171 IOM

52/56

52 3171 IOM 4/06

7/30/2019 3171 IOM

53/56

3171 IOM 4/06 53

The spring operated auto grease cups, for thesealed bearing option, are designed to maintain aconstant lubrication to the intermediate pumpbearings fixed to the vertical pump housing. Thecenter stem will protrude out of the housing whenthe cup is full and will gradually move down intothe housing as the grease is used. Once the wingnut has been threaded against the stem zerkfitting and the bottom of the wing nut is resting onthe cap of the grease cup, the grease reservoir isempty and has to be refilled.

Filling the housing

1. The grease cup can be filled in place.

2. Turn the wing nut clockwise until the center stem is raised all the way and the wing nut willnot turn any further.

3. Fit a pressurized grease gun to the top zerkfitting and pump the grease cup full until asmall amount of grease starts to come out of the side vent of the housing indicating the cupis full.

4. Unthread the wing nut to energize the greasecup allowing the internal spring pressure to

push grease into the bearing lube line.5. If the stem recedes into the housing

immediately and the bearing has beenpreviously purged, remove the top of thegrease cup by unthreading the top lid andinspect the plunger for defects. If all thegrease is found on the reverse, (or back side)of the plunger, it is defective and has to bereplaced.

Adjust ing the flow

1. There are two ways to adjust the flow of

grease in the automatic grease cup.a.) Unthreading the wingnut completely

against the zerk fitting of the center stemwill allow the full grease cup to be used asrequired. Any throttling of the amount of grease used should then be done byunlocking the hex nut of the throttlingscrew and turning the slotted screwclockwise approx. 1/2 turn at a time and

relocking the hex nut and monitoring thestem movement. When the grease in thegrease cup is completely consumed in 1-2weeks of operation, the flow is correct andthis will maintain the proper grease to thebearings.

b.) Leave the throttling screw locked open andback off the wingnut several turns for every2-3 days of operation. This will provide amore precise amount of grease to thebearings independent of changingoperating temperatures and surroundingconditions., but will require a morecontrolled maintenance schedule to makesure this is done on a regular basis and isNOT the preferred method.

Grease type

1. For normal operating temperatures 50 to 150deg. F, a #2 Lithium based grease isacceptable. Synthetics can be used if consulted with factory.

2. Extreme cold conditions may require the useof a # 1 grease to allow adequate flow into thebearings.

Grease Cu O eratin Instructions

Appendix V

7/30/2019 3171 IOM

54/56

54 3171 IOM 4/06

Standard Parts List With Materials of Construction

Item Qty. Per Pump Part Name

AllIron

BronzeFitted

CarbonSteel

CD4Fitted 316SS Alloy 20

Hast.B

Hast.C

100 1 Casing 1000 1000 1212 1216 1203 1204 1217 1215101 1 Impeller 1018 1101 1212 1216 1203 1204 1217 1215112 1 Thrust Bearing Double Row Angular Contact 122 1 Shaft 2205 2216 2221 2263 2264123 * Deflector EPDM134 1 Bearing Shell 1000136 1 Bearing Locknut Steel155 1 Casing Bushing Carbon Filled PTFE (Teflon )178 1 Impeller Key 2229 2230 2247 2248182 1 Suction Cover 1000 1212 1216 1203 1204 1217 1215187 1 Strainer 1000 3211 1204 1217 1215189 1 Support Plate 3201190 * Flush Tubing As Specified192 1 Head Column 6501 6545 6506 6519 6548

193B 1 Grease Fitting Carbon or as specified 195 1 Discharge Pipe 6501 6506 6519 6548197 * Steady Bearings Carbon or as specified 198 1 Impeller Screw 2229 2230 2247 6548199 1 Impeller Washer 2229 2230 213 * Steady Bearing Housing 1000 1203 1204 1217 1215240 1 Motor Support 1000242 2 Pipe Nut 1000 1203 1204 1217 1215306 * Column Extension 6501 6545 6506 315 1 Discharge Elbow 1000 1212 1216 1203 1204 1217 1215332A 1 Labyrinth Seal Carbon Teflon 333 1 Lip Seal Nitrile Lip Seal333H 2/Brg. Lip Seal Nitrile Viton 351 1 Gasket - Suction Cover to Casing NitrileAcrylic 351 A 1 Gasket - Discharge Elbow to Casing Nitriles Acrylic 361 A 1 Retaining Ring - Thrust Bearing Steel 369 * Retaining Ring - Steady Bearing PH1 5-7MO Stainless C-20 Hast elloy 369A 1 Retaining Ring - Shaft M/MT, L GroupsOnly Steel 370C 3 Clamp Bolt - Bearing Shell 2210370D 3 Jack Bolt - Bearing Shell 2210370G 6 Bolt - Column to Casing 2210 2229 2230 2247 2248370H 4 Bolt - Elbow to Casing 2210 2229 2230 2247 2248 370L 4 Bolt - Motor Adapter to Support Plate 2210370M 6 Bolt - Head Column to Motor Support 2210 2229 2230 2247 2248371 4 Bolt - Motor to Motor Support 2210

* Quantity dependent upon pump length and speed. Nuts and Washers are omitted for clarity.

7/30/2019 3171 IOM

55/56

3171 IOM 4/06 55

Material Code Cross ReferenceGouldsCode ASTM Number

1000 A48 CL25B Cast Iron

1018 A536-84 60-42-10 Ductile Iron1101 B584 Silicon Brass

1203 A743 CF8M 316 Stainless

1204 A743 CN7M Alloy 201212 A216 WCB Carbon Steel

1215 A494-90 CW6M C1,1 Hastelloy C1216 A890 1A CD4MCuN1217 A494 N-7M Hastelloy B

2205 C1045 Carbon Steel Ground and Polished2210 A108 Gr1211 Carbon Steel

2216 A276 316 Stainless Ground and Polished2229 A276-91A Stainless2230 B743 20CB3 Carpenter 20

2247 B335 Type B-2 Hastelloy B2248 B574 C-276 Hastelloy C

2263 B335 B-2 Hastelloy B Ground and Polished2264 B574 C-276 Hastelloy C Ground and Polished

3201 A283 Grade D Carbon Steel Plate

3211 A240 316 Steel Plate

6501 A53 Type F Carbon Steel Schedule 40 Pipe

6506 B464 C20CB3 Carpenter 20 Schedule 40 Pipe6511 Red Brass Pipe SPS6519 B622 Hastelloy B Schedule 40 Pipe

6545 A312 316L Stainless Steel Schedule 40 Pipe6548 Hastelloy C C-276 Schedule 40 Pipe

7/30/2019 3171 IOM

56/56

When ordering parts call1-800-446-8537

or your local Goulds Representative

Emergency parts service is available24 hours/day, 365 days/year . . .Call 1-800-446-8537

Visit our website at www gouldspumps com

HOW TO ORDER

EMERGENCY SERVICE