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Symptom

Cause

Remedy

Check that the suction pipe is vacuum-
tight.
Provide valves and fittings in the suction
pipe with water seal.

The direction of rotation is wrong.

Change the motor rotation.

The inner components are suffering
from wear.

Replace the worn parts.

Density and/or viscosity of the pumped
liquid is too high.

Seek assistance

The flow rate stops after a period
of time.

The pump or suction/intake pipe is
blocked.

Clean the pipes.

The NPSH is too low.

Increase the liquid level.
Increase the suction pressure.
Reduce the resistance in the intake/
suction pipe. Change the course and
pipe size, open the shutoff valves, and
clean the filters.

Air is being sucked into the pipes.

Increase the liquid level.
Check that the suction pipe is vacuum-
tight.
Provide valves and fittings in the suction
pipe with water seal.

The inner components are suffering
from wear.

Replace any worn parts.

The density and/or viscosity of the
pumped liquid is too high.

Seek assistance.

The head is too low.

The back pressure and discharge
pressure are too low.

Throttle the discharge valve.

The speed is too low.

Increase the speed. Check the available
motor power.
Compare the speed of the motor with the
specified pump speed. See the rating
plate.
When you adjust the speed (frequency
transformet), check the reference value
settings.

The impeller diameter is too small.

Use a larger impeller. Make sure to
check the available motor power.

The pump and/or pipes are not com-
pletely filled with liquid.

Fill the pump and/or pipes with liquid.
Vent the pump and/or pipes.

The pump or suction/intake pipe are
blocked.

Clean the pipes.

There is an air pocked in the pipeline. Vent the pipeline.

Improve the path of the pipes.

The NPSH of the system is too low.

Increase the liquid level.
Increase the suction pressure.
Reduce the resistance in the intake/
suction pipe. Change the course and
pipe size, open the shutoff valves, and
clean the filters.

Air is being sucked into the pipes.

Increase the liquid level.

7.2 Operation troubleshooting

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Model 3355 Installation, Operation, and Maintenance Manual

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Содержание Goulds Pump 3355

Страница 1: ...Installation Operation and Maintenance Manual Model 3355 ...

Страница 2: ......

Страница 3: ...ion 15 4 Installation 18 4 1 Pre installation 18 4 1 1 Pump location guidelines 18 4 1 2 Foundation requirements 19 4 2 Baseplate mounting procedures 20 4 2 1 Prepare the baseplate for mounting 20 4 2 2 Install the baseplate using shims or wedges 20 4 2 3 Install the baseplate using jackscrews 20 4 2 4 Install the baseplate using spring mounting 22 4 2 5 Install the baseplate using stilt mounting ...

Страница 4: ... the grease lubricated bearings 48 6 2 5 Lubricate the bearings after a shutdown period 48 6 3 Shaft seal maintenance 48 6 3 1 Mechanical seal maintenance 48 6 4 Disassembly 49 6 4 1 Disassembly precautions 49 6 4 2 Tools required 50 6 4 3 Drain the pump 50 6 4 4 Prepare for disassembly 50 6 4 5 Disassemble the discharge end ball bearing for the radial suction configuration 50 6 4 6 Disassemble th...

Страница 5: ...ss sectional 69 8 4 Radial suction stainless steel cross sectional 70 8 5 End suction all iron cross sectional 71 8 6 End suction all iron with stainless steel impeller cross sectional 72 8 7 End suction stainless steel cross sectional 73 8 8 Radial suction counterclockwise rotation all iron cross sectional 74 8 9 Radial suction counterclockwise rotation all iron with stainless steel impeller cros...

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: ...opriate 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 2 1 Safety terminology and symbols About safety messages It is extremely important that you read understand and follow the safety messages and regulations carefully before handling the product They are published to ...

Страница 8: ...pplicable 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 NOT send the product to ITT until it has been properly decontaminated and advise ITT of these conditions before ...

Страница 9: ... 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 fingers 2 Rinse the eyes with eyewash or running water for at least 15 minutes 3 Seek medical attention Chemicals or hazardous fluids on skin 1 Remove contaminated clothing 2 Wash the skin with soap and water for at least 1...

Страница 10: ...level regulator if mounted in zone 0 The yield stress of fasteners must be in accordance with the approval drawing and the product specification Do not modify the equipment without approval from an authorized ITT representative Only use parts that are provided by an authorized ITT representative 1 2 5 Description of ATEX The ATEX directives are a specification enforced in Europe for electrical and...

Страница 11: ...on Modifications or changes to the product and installation made without consulting ITT Incorrectly executed repair work Normal wear and tear ITT assumes no liability for these situations Bodily injuries Material damages Economic losses Warranty claim ITT products are high quality products with expected reliable operation and long life However should the need arise for a warranty claim then contac...

Страница 12: ... nails and straps 4 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 and lifting Precautions for moving the pump Use care when moving pumps Consult with a lifting and rigging specialist before lifting or moving the pump to avoid pos...

Страница 13: ...fting points are specifically identified in this manual It is critical to lift the equipment only at these points Integral lifting eyes or eye bolts on pump and motor components are intended for use in lifting the individual components only NOTICE Make sure that the lifting equipment supports the entire assembly and is only used by au thorized personnel Do not attach sling ropes to shaft ends Lift...

Страница 14: ...t during shipping Length of time in storage Storage requirements Upon receipt short term less than six months Store in a covered and dry location 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 You can purchase long term storage treatment with the initial unit ord...

Страница 15: ...onal bearings and mechanical seals on each end of the pump End suction configuration This configuration features an end suction nozzle in conjunction with a radial discharge nozzle You can position the radial discharge nozzle either vertically or horizontally at 90 to either side The suction end of the pump utilizes a product lubricated bearing that elminates the need for a second bearing housing ...

Страница 16: ...the discharge end and a single unbalanced component seal on the suction end of the RS configuration Internal flushing Plan 01 is standard External piping plans are not required Shaft The shaft is sized to transmit the required power across all operating conditions of the pump Impeller keyways are staggered in order to maintain a rotational shaft balance Shaft sleeves Renewable shaft sleeves protec...

Страница 17: ...r item numbers Nameplate types Nameplate Description Pump casing Pump Provides information about the hydraulic characteristics of the pump The formula for the pump size is Discharge x Suction Nominal Maximum Impeller Diameter in inches Example 2x3 8 ATEX If applicable your pump unit might have an ATEX nameplate affixed to the pump the base plate or the discharge head The nameplate provides informa...

Страница 18: ...5 Nameplate on pump casing using metric units Table 2 Explanation of the nameplate on the pump casing Nameplate field Explanation IMPLR DIA Impeller diameter MAX DIA Maximum impeller diameter M3 HR Rated pump flow in cubic meters per hour M HD Rated pump head in meters RPM Rated pump speed in revolutions per minute MOD Pump model SIZE Size of the pump STD NO MAT L CONST Material of which the pump ...

Страница 19: ...se contact your ITT Goulds representative before proceed ing WARNING Use of equipment unsuitable for the environment can pose risks of ignition and or explosion 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 informat...

Страница 20: ...the pump is suffi cient A minimum of 1 meter 3 feet is the recommenda tion This facilitates ventilation inspection maintenance and serv ice If you require lifting equipment such as a hoist or tackle make sure that there is enough space above the pump This makes it easier to properly use the lifting equipment and safely remove and relocate the components to a safe location Protect the unit from wea...

Страница 21: ...e and drive assembly Provide a flat substantial concrete foundation in order to prevent strain and distortion when you tighten the foundation bolts Sleeve type bolts 1 2 3 4 5 6 Item Description 1 Baseplate 2 Shims 3 Foundation 4 Sleeve 5 Dam 6 Bolt Figure 7 Sleeve type bolts J type bolts 1 3 2 4 5 Item Description 1 Baseplate 2 Shims or wedges 3 Foundation 4 Dam 5 Bolt Figure 8 J type bolts 4 1 P...

Страница 22: ...ll provide adequate support for the baseplate after it is grouted 3 Lower the baseplate carefully onto the foundation bolts 4 Put the machinist s levels across the mounting pads of the driver and the mounting pads of the pump NOTICE Remove all dirt from the mounting pads in order to ensure that the correct leveling is achieved Failure to do so can result in equipment damage or decreased performanc...

Страница 23: ...Put the other machinist s level across the ends of the two pads c Level the pads by adjusting the four jackscrews in the corners Make sure that the machinist s level readings are as close to zero as possible both lengthwise and across 4 Turn the center jackscrews down so that they rest on their plates on the foundation surface 5 Level the pump mounting pads NOTICE Remove all dirt from the mounting...

Страница 24: ...d b Screw the lower adjusting nut onto the spring stud on top of the jam nut c Set the lower adjusting nut to the correct height The correct height depends on the required distance between the foundation floor and the base plate d Put a washer a follower a spring and one more follower onto the lower adjusting nut 3 Install the spring assembly on the baseplate a Insert the spring assembly into the ...

Страница 25: ...tion floor to install the stilts 2 Install the lower part of the stilt assembly a Screw the lower jam nut and adjusting nut onto the stilt b Set the lower adjusting nut to the correct height The correct height depends on the required distance between the foundation floor and the base plate c Put a washer onto the lower adjusting nut 3 Install the stilt assembly on the baseplate a Insert the stilt ...

Страница 26: ...ing the lower adjusting nuts c When the baseplate is level tighten the top adjusting nuts 8 Fasten the lower and upper jam nuts on each stilt 1 2 3 4 5 6 7 8 1 Mounting plate 2 Mounting nut 3 Stilt bolt 4 Foundation cups 5 Washer 6 Upper adjustment nut 7 Mounting washer 8 Mounting bolt Figure 11 Example of an installed stilt assembly 4 2 Baseplate mounting procedures 24 Model 3355 Installation Ope...

Страница 27: ..._______________ 7 ____________________ 8 ____________________ 9 ____________________ 10 ___________________ 11 ___________________ 12 ___________________ 13 ___________________ 14 ___________________ 15 ___________________ 16 ___________________ 17 ___________________ 18 ___________________ Level measurements 4 2 Baseplate mounting procedures Model 3355 Installation Operation and Maintenance Manua...

Страница 28: ...t is used Initial alignment cold alignment check Prior to operation when the pump and the driver are at ambient temperature Final alignment hot alignment check After operation when the pump and the driver are at operating temperature Initial alignment cold alignment checks When Why Before you grout the baseplate This ensures that alignment can be accomplished After you grout the baseplate This ens...

Страница 29: ...es incorrect measurement Make sure that the hold down bolts for the driver are loose before you make alignment corrections This makes it possible to move the driver when you make alignment corrections Check the alignment again after any mechanical adjustments This corrects any misalignments that an adjust ment may have caused 4 3 4 Attach the dial indicators for alignment You must have two dial in...

Страница 30: ...end to the right Positive The coupling halves are closer together on the right side than the left Perform one of these steps Slide the shaft end of the driver to the right Slide the opposite end to the left 4 3 5 3 Perform parallel alignment for a vertical correction Before you start this procedure make sure that the dial indicators are correctly set up A unit is in parallel alignment when the par...

Страница 31: ...t horizontal angular correction 5 Repeat the previous steps until the permitted reading value is achieved 4 3 5 5 Perform complete alignment for a vertical correction 1 Set the angular and parallel dial indicators to zero at the top center position 12 o clock of the driver coupling half Y 2 Rotate the indicators to the bottom center position 6 o clock 3 Record the indicator readings 4 Make correct...

Страница 32: ...with a vibrator Pump the grout into place 5 Allow the grout to set 1 7 6 2 3 4 5 Item Description 1 Baseplate 2 Shims or wedges 3 Grout 4 Foundation 5 Sleeve 6 Dam 7 Bolt Figure 12 Pour grout into baseplate 6 Fill the remainder of the baseplate with grout and allow the grout to set for at least 48 hours 1 5 4 2 3 Item Description 1 Baseplate 2 Grout 3 Foundation 4 Dam 5 Bolt Figure 13 Fill remaind...

Страница 33: ...s and nuts are critical to the safe and reliable operation of the product Ensure appropriate use of fasten ers during installation or reassembly of the unit Use fasteners of the proper size and material only Replace all corroded fasteners Ensure that all fasteners are properly tightened and that there are no missing fas teners CAUTION Do not move the pump to the pipe This could make final alignmen...

Страница 34: ...pendently of and lined up naturally with the pump flange Strain on the pump Misalignment between the pump and the drive unit Keep the piping as short as possible This helps to minimize friction losses Check that only necessary fittings are used This helps to minimize friction losses Do not connect the piping to the pump until The grout for the baseplate or sub base becomes hard The grout for the p...

Страница 35: ... the strainer of 34 5 kPa 5 psi indicates that the strainer should be removed and cleaned After a period of time 24 hours minimum system flushing should be complete and the suction strainer can be removed Suction strainers help to prevent debris from entering the pump Mesh holes with a minimum diameter of 1 6 mm 1 16 in are recommended Liquids with specific gravity less than 0 60 a pressure drop a...

Страница 36: ...that the suction piping is ade quately submerged below the surface of the liquid source This prevents air from entering the pump through a suction vortex 4 5 4 Discharge piping checklist Checklist Check Explanation comment Checked Check that an isolation valve is installed in the discharge line For specific gravity less than 0 60 minimize distance from pump discharge The isolation valve is require...

Страница 37: ...he shaft by hand Make sure there is no rubbing that can lead to excess heat generation or sparks Re check the alignment to make sure that pipe strain has not caused any misalign ment If pipe strain exists then correct the piping 4 5 Piping checklists Model 3355 Installation Operation and Maintenance Manual 35 ...

Страница 38: ...over pressurization Risk of breach of containment and equipment damage Ensure the pump operates only between minimum and maximum rated flows Operation outside of these limits can cause high vibration mechanical seal and or shaft failure and or loss of prime WARNING Risk of death serious personal injury and property damage Heat and pressure buildup can cause explosion rupture and discharge of pumpa...

Страница 39: ...ure at initial startup Bring variable speed drivers to the rated speed as quickly as possible If temperatures of the pumped fluid will exceed 93 C 200 F then warm up the pump pri or to operation Circulate a small amount of fluid through the pump until the casing tem perature is within 38 C 100 F of the fluid temperature Accomplish this by flowing fluid from pump inlet to discharge drain optionally...

Страница 40: ... 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 serious physical injury or death Always disconnect and lock out power to the driver before performing any installa tion or maintenance tasks Electric...

Страница 41: ...eneral arrange ment drawing or as stamped on the coupling hub For any necessary adjustment move the driver not the pump Motors with sleeve bearings may be manufactured with 6 35 or 12 7 mm 1 4 or 1 2 in end move ment float in the motor rotor For limited end float arrangement the gap between the coupling halves must be set in a different manner If specific directions are not indicated in the motor ...

Страница 42: ...ck out power to the driver before performing any installa tion or maintenance tasks Electrical connections must be made by certified electricians in compliance with all international national state and local rules Refer to driver coupling gear manufacturer s installation and operation manuals IOM for specific instructions and recommendations WARNING The coupling guard used in an ATEX classified en...

Страница 43: ...the coupling guard half must fit around the end plate 1 2 3 Item Description 1 Annular groove 2 End plate pump end 2 Guard half Figure 17 Annular groove in coupling guard 3 Use a bolt a nut and two washers to secure the coupling guard half to the end plate Tighten se curely 5 4 Couple the pump and driver Model 3355 Installation Operation and Maintenance Manual 41 ...

Страница 44: ...ers the shafts and coupling 9 Use a nut a bolt and two washers to secure the coupling guard halves together 10 Tighten all nuts on the guard assembly 5 5 Pump priming CAUTION Do not run the pump dry Never start the pump until it has been properly primed Several different methods of priming can be used depending on the type of installation and service involved 5 5 1 Prime the pump with the suction ...

Страница 45: ...d units ensure that the oil level is correct prior to starting pump Close coupled pumps do not have oil lubricated bearings NOTICE Risk of equipment damage on pure or purge oil mist lubricated units Remove the viewing port plugs to verify that oil mist is flowing properly Reinstall the plugs after confirming Before you start the pump you must perform these tasks Open the suction valve Open any rec...

Страница 46: ...re and excessive noise If normal levels are exceeded shut down and resolve Risk of explosion and serious physical injury Do not operate pump with blocked system piping or with suction or discharge valves closed This can result in rapid heating and va porization of pumpage Risk of equipment damage and serious physical injury Heat build up can cause rotating parts to score or seize Observe pump for ...

Страница 47: ...structions and recommendations Misalignment can cause decreased performance equipment damage and even cata strophic failure of frame mounted units leading to serious injury Proper alignment is the responsibility 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 couplin...

Страница 48: ...never you check the pump during routine inspections Check the level and condition of the oil through the sight glass on the bearing frame Check for unusual noise vibration and bearing temperatures Check the pump and piping for leaks Analyze the vibration Check that there is no leakage from the mechanical seal NOTICE If equipped temperature and vibration levels can be retrieved by using your i ALER...

Страница 49: ...6000 6500 2 5 x 4 8 0 30 0 50 3500 4000 5000 5500 6000 4 x 5 10 0 40 0 75 3300 3800 4500 5000 5500 5 x 6 11 0 55 1 10 2500 3300 4300 4800 5000 6 2 3 Lubricating grease requirements Precautions NOTICE Avoid equipment damage or decreased performance Never mix greases of different con sistencies NLGI 1 or 3 with NLGI 2 or with different thickeners For example never mix a lithium based grease with a p...

Страница 50: ... a light oil to remove contaminants During flushing make sure to rotate the shaft slowly by hand 2 Flush the bearing housing with the proper lubricating oil to ensure oil quality after cleaning 3 Refer to Reassembly section for proper bearing procedure 6 3 Shaft seal maintenance 6 3 1 Mechanical seal maintenance WARNING The mechanical seal used in an Ex classified environment must be properly cert...

Страница 51: ...trapped liquid to rapidly expand and result in a violent explosion This manual clearly identifies accepted methods for disassembling units These methods must be adhered to Never apply heat to aid in their removal unless explicitly stated in this manual Handling heavy equipment poses a crush hazard Use caution during handling and wear appropriate Personal Protective Equipment PPE such as steel toed...

Страница 52: ...r applying other shock loads can cause property damage and or personal injury Ensure that the unit is properly supported and secure during lifting and handling Before you begin refer to the appropriate sectional drawing for either the radial suction or end suction configuration 1 If you plan to disassemble the entire pump for maintenance work place the pump in a vertical posi tion with the suction...

Страница 53: ...ove the O ring 412K 3 Loosen the impeller nuts 304 and remove the washer 199 4 Dismantle the impeller 101 and diffuser 150 and then remove the impeller key 178 Mark all parts for reassembly 5 Remove the intermediate bearing housing 134C and bearing sleeve 310 6 Dismantle the pump in stages down to the discharge casing 7 Invert the remaining portion of the pump Note that the bearing bracket 228C fa...

Страница 54: ...d the mechanical seals 383S and 383 are separate components Mark the position of these parts so that you can mount them in the same position during reassembly 6 6 Reassembly 6 6 1 Prepare for reassembly 1 Clean all components and remove any rust 2 For the RS configuration screw in and secure the throttling element 252 on the suction casing 100F 3 For the RS configuration provide a bore that is 0 1...

Страница 55: ...y into the groove 6 Insert the O ring 412H in the casing and secure it with silicon grease If possible make sure that the O ring is touching the outer diameter You can pull the O ring in order to slightly enlarge it 7 Carefully mount the seal cover 184 Use caution that the pin is in the correct direction 445E with the groove in the bearing bracket 8 Insert the shaft sleeve key 401 and slide on the...

Страница 56: ...he pre mounted unit on the discharge casing 100D and tighten the nuts 425 firmly See the Torque values table 11 Rotate the shaft 122 and make sure it runs smoothly 12 Replace the flinger guards 499 if applicable 6 6 4 Reassemble the pump body 1 Invert the pump Make sure that the free shaft points upwards and is vertical 2 Lubricate the shaft 122 Make sure that the lubricant is compatible with the ...

Страница 57: ...aximum of 230 F 110 C and slide it onto the shaft 122 The variants are Sizes 1 5 x 2 5 7 and 2 5 x 4 8 Roller bearing 409 double row angular ball bearings sin gle bearing Sizes 4 x 5 10 and 5 x 6 11 Roller bearing 409 paired angular ball bearings in back to back arrangement 3 Tighten the shaft nut 136A while the bearing is still hot 4 After the bearing cools down pack the bearing completely with g...

Страница 58: ... 8 x M12 42 57 38 52 Table 4 Maximum torque values in ft lbs Nm for 4 x 5 10 and 5 x 6 11 pumps Thread joint Screw Hexagonal nut Quality Pump size 4 x 5 10 5 x 6 11 Size Dry Lubricated Size Dry Lubricated Tie bolt 356S 357F 8 8 1 8UNC 244 331 222 301 1 8UNC 352 477 320 434 Bearing brack et 228C with suction casing 100F or dis charge casing 100D 356A 425 8 8 8 x M16 71 96 64 87 8 x M20 112 152 99 1...

Страница 59: ...ted Stainless steel Minimum Maximum Minimum Maximum 1 5 x 2 5 7 3 346 0 006 0 008 0 012 0 014 0 020 2 5 x 4 8 4 134 0 006 0 008 0 012 0 014 0 020 4 x 5 10 5 315 0 006 0 008 0 012 0 014 0 020 5 x 6 11 6 693 0 006 0 008 0 012 0 014 0 020 Area E Gap between the shaft and discharge casing Pump size Nominal diameter Gap new inches Maximum permissible gap All iron and stainless fitted Stainless steel Mi...

Страница 60: ...on Maximum allowable nozzle loads Nozzle loads for the suction flange and discharge flange are separate Do not exceed the stated permis sible forces and moments Nozzle configuration Flange size in Forces in lbf N Moments in ft lbs Nm Fx Fy Fz Σ F Mx My Mz Σ M Vertical nozzle perpen dicular to the shaft RS 1 5 74 330 67 300 85 380 133 590 206 280 103 140 140 190 273 370 6 7 Assembly references 58 M...

Страница 61: ...60 354 480 4 227 1010 202 900 182 810 416 1850 324 440 192 260 243 330 450 610 5 281 1250 254 1130 227 1010 443 1970 420 570 258 350 324 440 590 800 6 337 1500 304 1350 274 1220 531 2360 516 700 324 440 398 540 730 990 6 7 4 Recommended minimum flows CAUTION The recommended minimum flow is intended for brief periodic operation It is not to be used as a design point Extended operation at the minimu...

Страница 62: ...6 7 5 Wearing parts and dimensions Radial suction A B C D E End suction F 6 7 Assembly references 60 Model 3355 Installation Operation and Maintenance Manual ...

Страница 63: ...little further Reduce the resistance in the discharge pipe Clean the filter if necessary Use a larger impeller Make sure to take note of the available motor power The speed is too low Increase the speed Check the available motor power Compare the speed of the motor with the specified pump speed See the rating place When you adjust the speed frequency transformer check the reference value settings ...

Страница 64: ... liquid is too high Seek assistance The head is too low The back pressure and discharge pressure are too low Throttle the discharge valve The speed is too low Increase the speed Check the available motor power Compare the speed of the motor with the specified pump speed See the rating plate When you adjust the speed frequency transformet check the reference value settings The impeller diameter is ...

Страница 65: ...the reference value setting The impeller diameter is too large Use a smaller impeller The density and or viscosity of the pumped liquid is too high Seek assistance The shaft seal is worn Replace the mechanical seal Check the sealing flushing and cooling pipe pressure Avoid running the pump dry There is not enough sealing Tighten the screws Replace the mechanical seal The discharge pressure is too ...

Страница 66: ...n the shutoff valves and clean the filters The inner components are suffering from wear Replace the worn parts There is system related vibration res onance Seek assistance The temperature in the shaft seal ing area is too high The shaft seal is worn Replace the mechanical seal Check the sealing flushing and cooling pipe pressure Do not run the pump dry There are lines and rough spots on the shaft ...

Страница 67: ...ce Seek assistance The pump is leaking There is not enough sealing Tighten the screws Replace the mechanical seal The discharge pressure is too high Reduce the amount of pressure that is carried Throttle the control valve There are leaks at the shaft seal The shaft seal is worn Replace the mechanical seal Check the sealing flushing and cooling pipes pressure Do not run the pump dry There are depos...

Страница 68: ...Symptom Cause Remedy Replace the mechanical seal 7 2 Operation troubleshooting 66 Model 3355 Installation Operation and Maintenance Manual ...

Страница 69: ... parts Impeller i i i 2i 2i 3i 30 Diffuser i 2 i 2 i 2 i i 3i 2 15 Wear ring casing 2i 2i 2i 4i 4i 6i 30 Shaft with key and shaft screws nuts 1 1 2 2 2 3 30 Ball bearing 1 1 2 2 2 3 30 Bearing shaft nut 2 for radial suction 2 3 4 5 6 8 90 Shaft sleeve 2 2 2 3 3 4 50 O rings for pump casing sets 4 6 8 8 9 12 150 Other O ring sets 4 6 8 8 9 10 100 Mechanical seal sets for radial suction 2 3 4 5 6 7 ...

Страница 70: ...8 2 Radial suction all iron cross sectional 8 2 Radial suction all iron cross sectional 68 Model 3355 Installation Operation and Maintenance Manual ...

Страница 71: ... Radial suction all iron with stainless steel impeller cross sectional 8 3 Radial suction all iron with stainless steel impeller cross sectional Model 3355 Installation Operation and Maintenance Manual 69 ...

Страница 72: ...8 4 Radial suction stainless steel cross sectional 8 4 Radial suction stainless steel cross sectional 70 Model 3355 Installation Operation and Maintenance Manual ...

Страница 73: ...8 5 End suction all iron cross sectional 8 5 End suction all iron cross sectional Model 3355 Installation Operation and Maintenance Manual 71 ...

Страница 74: ...8 6 End suction all iron with stainless steel impeller cross sectional 8 6 End suction all iron with stainless steel impeller cross sectional 72 Model 3355 Installation Operation and Maintenance Manual ...

Страница 75: ...8 7 End suction stainless steel cross sectional 8 7 End suction stainless steel cross sectional Model 3355 Installation Operation and Maintenance Manual 73 ...

Страница 76: ...8 8 Radial suction counterclockwise rotation all iron cross sectional 8 8 Radial suction counterclockwise rotation all iron cross sectional 74 Model 3355 Installation Operation and Maintenance Manual ...

Страница 77: ...ckwise rotation all iron with stainless steel impeller cross sectional 8 9 Radial suction counterclockwise rotation all iron with stainless steel impeller cross sectional Model 3355 Installation Operation and Maintenance Manual 75 ...

Страница 78: ...dial suction counterclockwise rotation stainless steel cross sectional 8 10 Radial suction counterclockwise rotation stainless steel cross sectional 76 Model 3355 Installation Operation and Maintenance Manual ...

Страница 79: ...t and more information http www gouldspumps com Goulds Pumps 240 Fall Street Seneca Falls NY USA 2021 ITT Corporation The original instruction is in English All non English instructions are translations of the original instruction Form IOM 3355 en US 2021 03 ...

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