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Symptom

Cause

Remedy

There is excessive pipe strain on the
pump casing.

Relieve the strain and check the alignment. Con-
sult ITT if necessary.

The amount of available NPSH is not
sufficient.

Increase the positive suction head by low-
ering the pump or increasing the suction
pipe and fittings size.

Sub-cool the suction piping at the inlet to
lower the temperature of liquid that is en-
tering the pump.

Pressurize the suction vessel.

The pump and driver are not aligned.

Realign the pump and driver.

The suction inlet is not submersed
deep enough.

If the inlet cannot be lowered or if the problem per-
sists after the inlet is lowered, then chain a board
to the suction pipe. The board will be drawn into
the eddies and smother the vortex.

The casing is distorted due to exces-
sive strains from the suction and dis-
charge piping.

Check the alignment. Examine the pump for rub-
bing between the impeller and the casing. Replace
damaged parts and redo the piping.

The element turns
hard or has a rub.

The shaft is bent.

Straighten the shaft or replace it if necessary.

The running clearances between the
wear rings are incorrect.

Check for the proper clearances. Replace the cas-
ing or impeller wear rings if necessary.

There is excessive pipe strain on the
pump casing.

Relieve the strain and check the alignment. Con-
sult ITT if necessary.

There is excessive runout on the shaft
or impeller rings.

Inspect the rotating element and bearings. Replace
worn or damaged parts as necessary.

There is dirt in the casing ring or be-
tween the impeller and casing wear
rings.

Clean and inspect the wear rings. Replace worn or
damaged parts as necessary. Isolate and relieve
the source of dirt.

7.1 Troubleshooting

Model 3410 Installation, Operation, and Maintenance Manual

Содержание GOULDS PUMPS 3410

Страница 1: ...Installation Operation and Maintenance Manual Model 3410 ...

Страница 2: ......

Страница 3: ...it 15 2 2 Transportation guidelines 15 2 2 1 Precautions 15 2 2 2 Pump handling 15 2 2 3 Lifting methods 15 2 3 Storage guidelines 18 2 3 1 Pump storage requirements 18 3 Product Description 19 3 1 General description 19 3 2 Nameplate information 22 4 Installation 25 4 1 Pre installation 25 4 1 1 Pump location guidelines 25 4 1 2 Foundation requirements 26 4 2 Set the baseplate 27 4 3 Pump to driv...

Страница 4: ...artup 52 5 18 Inspect the mechanical seal after startup 52 5 19 Shut down the pump 52 5 20 Make the final alignment of the pump and driver 53 6 Maintenance 54 6 1 Maintenance schedule 54 6 2 Flood damaged pumps 55 6 3 Bearing maintenance 55 6 3 1 Regrease the grease lubricated bearings 55 6 3 2 Lubricate the oil lubricated bearings 57 6 3 3 Bearing temperatures 58 6 3 4 Bearing conditions 58 6 3 5...

Страница 5: ... the bearings 70 6 7 4 Install the rotating element 70 6 7 5 Assemble the casing 71 6 7 6 Complete the assembly 71 6 7 7 Bolt Torque Values 3410 IOM 72 6 8 Spare parts 72 7 Troubleshooting 74 7 1 Troubleshooting 74 8 Parts Listings and Cross Sectionals 78 8 1 Drawings 78 8 2 Parts list 79 Table of Contents Model 3410 Installation Operation and Maintenance Manual 3 ...

Страница 6: ...prevent physical injury Risk of serious injury or death If any pressure containing device is over pressurized it can explode rupture or discharge its contents It is critical to take all necessary meas ures to avoid over pressurization Risk of death serious personal injury and property damage Installing operating or maintaining the unit using any method not prescribed in this manual is prohibited P...

Страница 7: ...ng a pump in an inappropriate application can cause over pressurization overheating and or unstable operation Do not change the service application without the approval of an authorized ITT representative 1 3 Safety terminology and symbols About safety messages It is extremely important that you read understand and follow the safety messages and regulations carefully before handling the product Th...

Страница 8: ...and emissions Appropriately dispose of all waste Handle and dispose of the processed liquid in compliance with applicable environmental regula tions Clean up all spills in accordance with safety and environmental procedures Report all environmental emissions to the appropriate authorities WARNING If the product has been contaminated in any way such as from toxic chemicals or nuclear radi ation do ...

Страница 9: ...or are in connection with the product Provide a suitable barrier around the work area for example a guard rail Make sure that all safety guards are in place and secure Make sure that the equipment is properly insulated when it operates at extreme temperatures Recognize the site emergency exits eye wash stations emergency showers and toilets Allow all system and pump components to cool before you h...

Страница 10: ...lames Do not use the condition monitor in atmospheres containing acetic acid Always wear protective gloves The pump and condition monitor can be hot 1 5 3 Wash the skin and eyes 1 Follow these procedures for chemicals or hazardous fluids that have come into contact with your eyes or your skin Condition Action Chemicals or hazardous fluids in eyes 1 Hold your eyelids apart forcibly with your finger...

Страница 11: ...tative before you proceed Personnel requirements ITT disclaims all responsibility for work done by untrained and unauthorized personnel These are the personnel requirements for Ex approved products in potentially explosive atmospheres All work on the product must be carried out by certified electricians and ITT authorized mechanics Special rules apply to installations in explosive atmospheres All ...

Страница 12: ...ollow these procedures will void the ATEX classification for the equipment Bearing replacement intervals are given in the specific pump model IOM Inspection intervals should be shortened appropriately if the pumpage is abrasive and or corrosive or if the environment is classified as potentially explosive Throughout this section on bearing lubrication different pumpage temperatures are listed If th...

Страница 13: ...applications with conductive couplings or ensure pump shaft is adequately grounded User shall observe necessity of using a safety device such as a flame arrestor to prevent flame entering or leaving the pump sump tank or barrel when applicable In plants or pumps with cathodic corrosion protection a small current constantly flows through the construction This is not permissible on the complete pump...

Страница 14: ... II Div 1 Groups E F G Class III Certified to Canadian and US requirements SERIAL NO YEAR OF MANUFACTURE HERE 1 8 ATEX Considerations and Intended Use Special care must be taken in potentially explosive environments to ensure that the equipment is proper ly maintained This includes but is not limited to Description of ATEX The ATEX directives are a specification enforced in Europe for electrical a...

Страница 15: ...umps 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 https www gouldspumps com en US Tools and Resources Literature IOMs or from your local ITT Goulds Pumps Sales representative All pumping unit pump seal coupling motor and pump accessories certified for use in an ATEX classi fied envir...

Страница 16: ...nt incorporated in the product is correctly connected and in use All service and repair work is done by ITT authorized personnel Genuine ITT parts are used Only Ex approved spare parts and accessories authorized by ITT are used in Ex approved prod ucts Limitations The warranty does not cover faults caused by these situations Deficient maintenance Improper installation Modifications or changes to t...

Страница 17: ... Contact your sales representative if anything is out of order 2 2 Transportation guidelines 2 2 1 Precautions WARNING Stay clear of suspended loads Observe accident prevention regulations in force 2 2 2 Pump handling WARNING Dropping rolling or tipping units or applying other shock loads can cause property damage and or personal injury Ensure that the unit is properly supported and secure during ...

Страница 18: ...ing holes WARNING If the driver has been mounted on the baseplate at the factory then it is safe to lift the entire assembly CAUTION Take care to size equipment for unbalanced loads that may exist if the driver is not mounted on the base at the time of lifting The driver may or may not be mounted at the factory Attach nylon slings chains or wire rope to ANSI OSHA Standard S hooks Then attach the h...

Страница 19: ... chain or wire rope around both flanges Use a latch hook or standard shackle and end loops Be sure the lifting equipment is long enough to keep the lift angle less than 30 from the vertical Full pedestal Install eyebolts in the three holes provided at the top of the support and tight en securely Attach a chain or wire rope using a latch hook or standard shack le and end loop You must use shoulder ...

Страница 20: ...erm less than six months Store in a covered and dry location Store the unit free from dirt and vibrations Long term more than six months Store in a covered and dry location Store the unit free from heat dirt and vibrations Rotate the shaft by hand several times at least every three months Treat bearing and machined surfaces so that they are well preserved Refer to drive unit and coupling manufactu...

Страница 21: ...s are all iron bronze fitted 316SS fitted and all 316SS Other constructions are available upon re quest Right hand rotation is standard Left hand rotation is available as an option The rotation can be changed after installation without any additional parts Vertical application Model 3410 is available in a vertical configuration 3410V This arrangement is ideal for applications with limited space su...

Страница 22: ...e flanges are standard with 250 flat face available as an option DIN flanges may also be provided on all sizes except the 6x8 22 The flanges are provided in accord ance with EN 1092 2 These flanges are smooth flat faced and meet or exceed the minimum thickness required by the PN rating The flanges provided are PN16 on smaller sizes and PN10 on the larger sizes The casings are standard with the fol...

Страница 23: ...r an outside source Bypass piping is optional Two piece investment cast 316 stainless steel non quench glands are standard on all 3410 pumps Mechanical seals Mechanical seals are available as an option on the Model 3410 Oversize stuffing box bores are standard on pumps with factory installed mechanical seals This provides greater flexibility and an improved operating environment Pumps that are sup...

Страница 24: ... water quench and leaching Municipal High lift low lift wash water waste water and raw water Utilities Cooling tower component cooling and service water Marine Bilge and ballast cargo cooling service and fire pump 3 2 Nameplate information Important information for ordering Every pump has a nameplate that provides information about the pump The nameplate is located on the pump casing When you orde...

Страница 25: ...uare inch S N Serial number of the pump CONT ITEM NO Customer contract or item number IMP DIA Rated impeller diameter inches MAX DIA Maximum impeller diameter inches STD DIM Standard ANSI dimensional code MAT L Material of construction ATEX nameplate Figure 9 Typical ATEX pump nameplate Refer to Table 1 Temperature class definitions on page 13 The code classification marked on the equipment should...

Страница 26: ...Ensure the pump driver and all other auxiliary components meet the required area classifica tion at the site If they are not compatible do not operate the equipment and contact an ITT representative before proceeding 3 2 Nameplate information 24 Model 3410 Installation Operation and Maintenance Manual ...

Страница 27: ...ter national national state and local regulations Supervision by an authorized ITT representative is recommended to ensure proper instal lation Improper installation may result in equipment damage or decreased performance 4 1 1 Pump location guidelines Guideline Explanation comment Keep the pump as close to the liquid source as prac tically possible This minimizes the friction loss and keeps the s...

Страница 28: ...p is motor driven then the electrical characteristics of the power source should be identical to those shown on motor data plate The installation must be evaluated to determine that the Net Positive Suction Head Available NPSHA meets or exceeds the Net Positive Suction Head Required NPSHR as stated by the pump performance curve 4 1 2 Foundation requirements Requirements The foundation must weigh a...

Страница 29: ... use metal wedges with a small taper 2 If the unit has a non flexible coupling such as a Falk Gear coupling then disconnect the coupling halves This is usually not necessary on flexible type couplings such as Wood s Sure Flex coupling 3 Tighten all pump and motor bolts This ensures that bolts have not loosened or that a soft foot has not occurred due to base distortion during shipment A soft foot ...

Страница 30: ... misalignment Description Angular misalignment Shafts have an axis concentric at the intersection but not parallel Parallel offset misalignment Shafts have an axis parallel but offset Check and correct angular misalignment before correcting parallel misalignment Permissible coupling misalignment Type of misalignment Single element coupling Double element spacer coupling Parallel misalignment 0 1 m...

Страница 31: ...2 in to 0 102 mm 0 004 in low 38 C 100 F 0 00 mm 0 000 in to 0 05 mm 0 002 in high 93 C 200 F 0 102 mm 0 004 in to 0 152 mm 0 006 in high 149 C 300 F 0 203 mm 0 008 in to 0 254 mm 0 010 in high 204 C 400 F 0 305 mm 0 012 in to 0 356 mm 0 014 in high 4 3 2 Align the pump using a straight edge Before you begin you must have a straight edge and a taper gauge or set of feeler gauges Only use this meth...

Страница 32: ... button rests Then place a separator between the coupling halves so that the bearing slack does not affect the readings Chalk and separators are not necessary on the elastomeric couplings that have not been discon nected 4 Rotate both shafts by the same amount All readings must be made with the button on the chalk mark The dial readings will indicate whether the driver must be raised lowered or mo...

Страница 33: ...rout until the initial alignment is made Grout compensates for an uneven foundation Together with the baseplate grout makes a very rigid in terface between the pump and the foundation by distributing the weight over the length of the base and preventing shifting Use an approved non shrinking grout such as Embeco 636 or 885 by Master Build ers Cleveland Ohio or the equivalent 4 4 Grout the baseplat...

Страница 34: ...d paint to the exposed edges of the grout in order to prevent air and moisture from coming in contact with the grout 4 5 Piping checklists 4 5 1 General piping checklist Precautions WARNING Risk of premature failure Casing deformation can result in misalignment and contact with rotating parts causing excess heat generation and sparks Flange loads from the piping system including those from the the...

Страница 35: ...e discharge line Never throttle the flow from the suction side This action can result in decreased performance unexpected heat generation and equipment damage Piping guidelines Guidelines for piping are given in the Hydraulic Institute Standards available from the Hydraulic Institute at 9 Sylvan Way Parsippany NJ 07054 3802 You must review this document before you install the pump Checklist Check ...

Страница 36: ...ction piping for horizontal double suction pumps are in stalled per the Hydraulics Institute Stand ards since there is always an uneven turbu lent flow around an elbow When there is an elbow in a position other than the vertical when in relation to the pump suction nozzle this causes more liquid to enter one side of the impel ler than the other The result is highly unequalized thrust loads that ov...

Страница 37: ...of a double suction impeller due to the uneven flow around an el bow that is adjacent to the pump 1 2 3 4 5 1 Pump casing 2 Impeller 3 Pump suction flange 4 Suction elbow 5 Water velocity increases here and causes a greater flow to one side of the impeller Figure 17 Unbalanced loading of double suction impeller Examples 2 3 4 1 1 Level centerline of pipe 2 Check valve 3 Gate valve 4 Increaser Figu...

Страница 38: ...ir pocket Figure 21 Incorrect 2 1 1 No air pockets 2 Gradual rise Figure 22 Correct 3 2 1 1 No air pockets 2 Eccentric reducer 3 Gradual rise Figure 23 Gradual rise to the pump correct 1 1 Distance plus eccentric reducer straightens the flow Figure 24 Suction pipe above the pump correct 4 5 Piping checklists 36 Model 3410 Installation Operation and Maintenance Manual ...

Страница 39: ...e flapper type rather than the multiple spring type and that it is sized to avoid excessive friction in the suction line Size the foot valve and pipe in order to maximize NPSHA to the pump by minimizing suction line losses When foot valves are used or where there are other possibilities of water hammer close the dis charge valve slowly before you shut down the pump Check valves In normal applicati...

Страница 40: ...om excessive backpressure and prevents liquid from running back through the pump in case of power failure The gate valve is used for priming and starting and also shutting down the pump 4 5 5 Pressure gauges Install properly sized pressure gauges in both the suction and discharge nozzles in the gauge taps pro vided The gauges enable the operator to observe the operation of the pump and to determin...

Страница 41: ...tems in order to eliminate all foreign matter Heavy scale welding splatter and wire or other large foreign matter can clog the pump impeller This reduces the capacity of the pump which then causes cavitation excessive vibration and or damage to close clearance parts such as wear rings seals and sleeves Pre operation inspections NOTICE Foreign objects in the pumped liquid or piping system can block...

Страница 42: ...o ensure a steady flow of liquid This condition provides a positive suction head on the pump It is also possible to prime the pump by pressurizing the suction vessel Methods for pump priming Pump installation Priming method Positive head on the suction Open the suction valve and loosen the vent plug on top of the cas ing This allows air to be purged from the casing While you vent the air from the ...

Страница 43: ...p and correct the condition 5 Start the pump driver Turbines and engines can require a brief warm up period Consult the instructions provided by the engine manufacturer 6 When the pump is operating at full speed make sure that the check valve has opened The check valve must open five seconds or less after startup in order to prevent damage to the pump by operating at zero flow 7 Adjust the liquid ...

Страница 44: ...und noise from piping valves drivers gears and other parts Follow the recommen dations in the Hydraulic Institute Standards 5 6 Check the rotation WARNING Starting the pump in reverse rotation can result in the contact of metal parts heat genera tion and breach of containment Ensure correct driver settings prior to starting any pump Failure to disconnect and lock out driver power may result in ser...

Страница 45: ...t unless appropriate safety devices guards etc are properly installed Couplings must have proper certification to be used in an ATEX classified environment Use the instructions from the coupling manufacturer in order to lubricate and install the coupling Refer to driver coupling gear manufacturers IOM for specific instructions and recommendations 5 8 Bearing lubrication CAUTION Risk of explosive h...

Страница 46: ...the bearing housing with a waste or return line Water cooling is required when operating temperatures ex ceed 121 C 250 F 1 Remove the oiler 1 2 3 A B 1 Oiler 2 Adjustment assembly 3 Housing 2 Remove the adjustment assembly from the oiler 3 Adjust the bars to dimension A as specified in 5 8 3 Bar adjustment on page 44 4 Lock in position 5 Replace the adjustment assembly in the oiler 6 Install the ...

Страница 47: ...n ring 3 Last three packing rings 1 2 3 1 Lantern ring flush connection 2 Two piece investment cast 316 SS plain gland non quench 3 Stuffing box bushing 3 Twist the packing ring sideways just enough to get it around the shaft or sleeve Packing Rings Correct Incorrect Figure 26 Packing rings 4 Twist the lantern ring halves just enough to get them around the shaft sleeve Two pieces make one ring The...

Страница 48: ...he sleeves or the shaft Replace the sleeves or the shaft if either is deeply grooved 5 10 Mechanical seal options WARNING The mechanical seal used in an ATEX classified environment must be properly certified When mechanical seals are furnished the description and identification are indicated on the order forms Installation drawings from the seal manufacturer are attached to pump Most seals are ins...

Страница 49: ...ffing box 4 Standard two bolt flush gland cast iron or bronze 5 O ring mounted stationary seat Figure 28 Single inside unbalanced or integrally balanced seal for an S group pump The following figure illustrates the same type of seal for M group pumps Note that the shaft is protected by sleeves and sleeve nuts as standard All other features and details are the same 1 2 3 4 5 1 Standard shaft sleeve...

Страница 50: ...ve Packing converted to a mechanical seal Pumps that are supplied with packing boxes can be converted to mechanical seals in the field This con version requires remachining the stuffing box to allow for the standard gland pilot feature or remachining the standard gland to remove the pilot lip as shown in the following figures In this case a shimming op eration is required to center the gland on th...

Страница 51: ...quiring feeler gauge centering on the shaft Figure 33 S group pump bellows type seal The following mechanical seals can be installed in standard stuffing boxes by using a remachined non pilot gland Crane type 1 81T 9T and Metal Bellows 680 Flowserve RO Mechanical seal converted to packing Pumps supplied with mechanical seals can be converted to packing The packing conversion kit includes all the s...

Страница 52: ...rate The pressure must be 1 01 kg cm2 15 psi above the stuffing box pressure 5 12 Connection of cooling water piping Tapped openings on top of the quench gland are provided for water sealing Bypass piping is connected from a T shaped joint installed in the vent plug opening at the top of the upper casing to the tapped open ing in the stuffing box 5 13 Mechanical seal flushing and cooling NOTICE Th...

Страница 53: ...that there is no rubbing 5 15 Pump priming CAUTION Do not run the pump dry When to prime the pump You must prime the pump before startup When it is possible locate the pump below the fluid level in order to facilitate priming and to ensure a steady flow of liquid This condition provides a positive suction head on the pump It is also possible to prime the pump by pressurizing the suction vessel Met...

Страница 54: ...itself and for you to observe the effect on leakage 2 If any sign of heating is evident then shut down the pump and allow the box to cool Several starts may be necessary before the box runs cool Do not back off the gland nuts on a hot box because this can result in leakage between the outer edge of the packing and the stuffing box bore 5 18 Inspect the mechanical seal after startup CAUTION Running...

Страница 55: ...lity of the installer and the user of the unit Check the alignment of all drive components prior to operating the unit Follow the coupling installation and operation procedures from the coupling manu facturer You must check the final alignment after the pump and driver are at operating temperature For initial alignment instructions see the Installation chapter 1 Run the unit under actual operating...

Страница 56: ...r type as recommended Six month inspections Perform these tasks every six months Check the packing and replace if necessary Use the grade recommended Make sure the seal cag es are centered in the stuffing box at the entrance of the stuffing box piping connection Take vibration readings on the bearing housings Compare the readings with the last set of read ings to check for possible pump component ...

Страница 57: ...s are free from rust and wear then reassemble and re lubricate them with one of the recommended lubricants Depending on the length of time the pump has remained in the flooded area it is unlikely that bearing replacement is necessary Only replace the bearings if rust or worn surfaces appear Inspect the stuffing box and clean out any foreign matter that will clog the box Replace packing that appear...

Страница 58: ...res return to normal in about two to four operating hours as the pump runs and purges the excess grease from the bearings 6 3 1 1 Lubricating grease requirements Grease lubricated ball bearings are standard on this model A grease lubricated bearing can be identified by grease fittings located on the bearing housing Precautions NOTICE Avoid equipment damage or decreased performance Never mix grease...

Страница 59: ...the oiler see 5 8 2 Lubricate the bearings with oil optional on page 44 1 After the pump has been installed flush the housings to remove dirt grit and other impurities that have entered the bearing housing during shipment or installation 2 Fill the oiler bottles on both bearing housings with the proper lubricant and place on the oiler hous ing The oil reservoir in the bearing housing is filled whe...

Страница 60: ... misalign ment See 7 1 Troubleshooting on page 74 Do not use the human hand as a thermometer A temperature that feels hot to the hand can vary from 49 C 120 F to 54 C 130 F depending upon the individual Above this temperature the hu man hand can not accurately estimate temperature 6 3 4 Bearing conditions The life of a bearing can be drastically reduced if contaminated with even a small amount of ...

Страница 61: ...n or maintenance and provides clean and quiet performance If other types of couplings are used then follow the maintenance instructions provided by the coupling manufacturer 6 4 Shaft seal maintenance 6 4 1 Packed stuffing box maintenance Check or instruction Explanation comment When starting a pump with fiber packing for the first time make sure that the packing is slightly loose without causing ...

Страница 62: ...cal seal should not be put back into service unless the sealing faces have been replaced or relapped Relapping is practical only for seals that are 5 1 cm 2 in or larger For optimum seal life always follow these precautions Keep the seal faces as clean as possible Keep the seal as cool as possible Make sure the seal always has proper lubrication If the seal is lubricated with filtered fluid then c...

Страница 63: ...orn pump components can have sharp edges Wear appropriate gloves while handling these parts 6 5 2 Drain the pump CAUTION Risk of physical injury Allow all system and pump components to cool before handling If the pumped fluid is non conductive drain and flush the pump with a conductive fluid un der conditions that will not allow for a spark to be released to the atmosphere 1 Remove the drain plug ...

Страница 64: ...of the bearing housing You can access the bearing housing tap bolts without removing this end plate if maintenance of internal pump parts is necessary 6 Remove the pump half of the coupling guard a Slightly spread the bottom apart b Lift upwards 1 2 3 4 Item Description 1 Coupling guard half 2 Annular groove 3 Pump end plate 4 Driver 6 5 4 Remove the rotating element 1 Disconnect the coupling 6 5 ...

Страница 65: ...acking bolts 418 evenly until the seal is broken S group M L XL groups 1 2 3 1 469G 2 426 3 Parting slot 1 2 3 1 426 2 425 3 418 6 Remove the upper casing using a sling and hoist or a lift and lifting lugs WARNING Never attempt to lift the entire pump using lifting lugs 7 Remove and discard the gaskets 8 Remove the screws 372U from the bearing saddle 9 Place the sling on the shaft 122 and then use...

Страница 66: ...seals 1 Do one of the following If the pump has mechanical seals then slide the glands with the stationary seat in place off the shaft Make sure not to damage the lapped seal faces If the pump has packed stuffing boxes then remove the nuts 355 gland 107 packing 106 lantern rings 105 and stuffing box bushings 125 2 Slide the casing wear ring 103 off the impeller and shaft 3 Remove the rotating port...

Страница 67: ...Leaking fluid can cause fire and or burns Inspect and en sure gasket sealing surfaces are not damaged and repair or replace as necessary Risk of death or serious injury Leaking fluid can cause fire and or burns Replace all gas kets and O rings at each overhaul or disassembly Use fasteners of the proper size and material only Replace all corroded fasteners Ensure that all fasteners are properly tig...

Страница 68: ...xist Excessive erosion especially on inlet vanes Deterioration of the gasket mating surface to the point that the gasket 428 cannot seal properly Excessive erosion of surfaces If the impeller diameter needs to be cut then make sure that it is dynamically balanced Grind the out side of the shrouds near the periphery in order to correct imbalance Shaft sleeve The sleeve 126 surface in the stuffing b...

Страница 69: ... anti rotation pins 445A are firmly pressed into the wear rings 103 Refer to 6 3 Bearing maintenance on page 55 for specific instructions on cleaning bearings 6 6 1 Replace impeller wear rings 1 Remove the old rings a Remove the three setscrews 320 b Pull the ring 142 off the impeller hub 2 Clean the hub and press on a new ring 142 3 Drill and tap three holes 120 1 600 mils apart with a 7 32 in dr...

Страница 70: ...09 0 011 in 0 022 0 028 mm 8 x 10 17H 0 0055 0 0075 in 0 014 0 019 mm 0 010 0 012 in 0 025 0 030 mm 8 x 10 21 0 005 0 007 in 0 013 0 018 mm 0 009 0 011 in 0 022 0 028 mm 10 x 12 12 0 0055 0 0075 in 0 014 0 019 mm 0 010 0 012 in 0 025 0 030 mm 10 x 12 14 0 005 0 007 in 0 013 0 018 mm 10 x 12 17 0 0065 0 0085 in 0 017 0 022 mm 0 011 0 013 in 0 028 0 033 mm XL 10 x 12 12H 10 x 12 15 0 0055 0 0075 in ...

Страница 71: ...e up the impeller hub with the mark made on the shaft during disassembly 6 Install the shaft sleeve Pump group Instructions S 1 Install the retaining ring so that the tapered side is facing the out board end of the shaft The inward pressure asserted by the double taper automatically cen ters the impeller and eliminates lateral play The outboard thrust end retaining ring groove and retaining ring 3...

Страница 72: ...ngs can get hot and can cause physical injury Start the bearings 112 and 168 onto the shaft by tapping the inner race with a hammer or mallet Keep the bearing square at all times 3 After the bearing is started on shaft use a driving sleeve in order to press or drive the bearing until it contacts the shoulder on the inboard side of the seal Make sure that the sleeve contacts only one inner race 4 F...

Страница 73: ...ins 496G 4 Install the screws 426 and parting nuts 425 on the studs 356A and tighten as follows a Using an X pattern working outwards towards the flanges tighten the nuts and screws to the following torque S and M groups 40 ft lbs 55 Nm L and XL groups 60 ft lbs 80 Nm b Using the same pattern increase the torque to the following S and M groups 90 ft lbs 122 Nm L and XL groups 180 ft lbs 245 Nm c U...

Страница 74: ... possible long and costly downtime periods especially on critical services Part Notes Rotating element This is a group of assembled parts including a shaft impeller bearings bearing housings with seals wear rings stuffing box bushings and all rotating parts except the coupling Stuffing box packing and lantern ring if any One set for each stuffing box Mechanical seals if any One seal for each stuff...

Страница 75: ...hese can all be obtained from the nameplate List plainly the names part numbers and materials of the parts required These names and num bers must agree with those in the Parts list chapter of this manual Specify the number of parts required Specify definite billing and shipping instructions 6 8 Spare parts Model 3410 Installation Operation and Maintenance Manual 73 ...

Страница 76: ...en phase The system static head is too high Check with ITT to determine whether a larger im peller can be used If not then cut pipe losses in crease the speed or both Do not overload the driver The system head or discharge head is too high Check for pipe friction losses and that the valves are wide open The condition can be corrected with larger piping The pump is not deliv ering enough liquid or ...

Страница 77: ...on Air or gases are trapped in the liquid Consult with ITT The pump starts and then stops pumping The suction lift is too high Check for obstructions at the inlet and make sure the suction valves are open Check for pipe friction losses Use a vacuum or compound gauge to check the NPSH available The impeller is clogged Back flush the pump in order to clean the impeller The suction piping has air lea...

Страница 78: ...scored Machine or replace the shaft sleeve as necessary The packing is too tight or the mechan ical seal is not adjusted properly Check and adjust the packing Replace any parts as necessary Adjust the mechanical seals Consult the instructions supplied by the seal manufacturer or consult with ITT The motor requires ex cessive power The discharge head has dropped be low the rated point and is pumpin...

Страница 79: ...s sive strains from the suction and dis charge piping Check the alignment Examine the pump for rub bing between the impeller and the casing Replace damaged parts and redo the piping The element turns hard or has a rub The shaft is bent Straighten the shaft or replace it if necessary The running clearances between the wear rings are incorrect Check for the proper clearances Replace the cas ing or i...

Страница 80: ... 445A 103 142 101 142 320 103 445A 126 428 428 356A 126 125 106 105 106 134 361 112 109 123 222B 124 107 497 333 360 113A 109A 251 497 124 333 168 113 134 332 371C 360 109 123 355 353 372U 100 351 353 8 Parts Listings and Cross Sectionals 78 Model 3410 Installation Operation and Maintenance Manual ...

Страница 81: ...E 106 1 set Stuffing box packing Square non asbestos die formed S and M groups 107 2 Stuffing box gland AISI 316 109 2 Bearing end cover 1000 109A 1 Thrust bearing end cover Steel 112 1 Thrust ball bearing Steel 113 2 Grease fitting Steel 113A 2 Breather oil lubrication only Steel 122 1 Shaft AISI 4140 123 1 Deflector optional Laminated plastic 124 1 Sleeve nut M L and XL on ly 1618 1000 1071 125 ...

Страница 82: ... rubber 333A 1 Labyrinth seal inboard op tional Steel 351 1 Parting casing gasket 1 32 in non asbestos 353 4 Gland studs 316 353B 2 Hex capscrew with cast iron mechanical seal gland Steel 4 Hex capscrew with steel me chanical seal gland Steel 355 4 Gland stud hex nut 304 356A 4 Casing parting stud Steel 360 2 Gasket end cover to bearing housing Kraft paper 360Q 8 Gasket gland to case Non asbestos ...

Страница 83: ...truction Code Specification 1000 Cast iron ASTM A48 Class 25B 1003 Cast iron ASTM A48 Class 30B 1179 Bronze ASTM B584 UNS C87600 304 Wrought stainless ASTM A276 Type 304 AISI 1018 ASTM A108 Grade 1018 B1112 AISI 420 ASTM A276 Type 420 AISI 4140 ASTM A322 Grade 4140 1618 Bronze ASTM B584 Alloy C80500 1071 Nitronic 60 ASTM A743 Grade CF10SMnN 8 2 Parts list Model 3410 Installation Operation and Main...

Страница 84: ... more information http www gouldspumps com ITT Goulds Pumps 240 Fall Street Seneca Falls NY 13148 USA 2021 ITT Corporation The original instruction is in English All non English instructions are translations of the original instruction Form IOM 3410 en US 2021 02 ...

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ITT GOULDS PUMPS 3410, Инструкция по установке, эксплуатации и обслуживанию

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