AM User manual
Contents
1. 5 4 Particle Size Sludge 1 The service life of a pump may be greatly shortened by pumping fluids that carry small particles or sludge Its service life is dependent on the concentration of the particles its size and hardness 2 For particle concentration less than 5 particle size smaller than 50 um and hardness within 80 Hs SSiC bearings may be used However a shorter than normal service life can be expected 11 AM SERIES off the power at once and remove the obstruction Should foreign matter enter the pump it may cause pump damage or failure Turn CAUTION 5 5 Minimum Flow Our pump uses the pumped fluid as its cooling and lubricating system A low flow rate may result in increasingly high temperature within the pump and increased radial and axial force thus affecting the pump s performance and service life Please use Table 5 1 for the recommended minimum flow rate Table 5 1 Unit l min AM 10 AM 30 50 Note The above data is based on water For volatile or viscous fluids consult your local distributor Do not operate the pump with outlet valve shut off more than 1 minute Long shut off time will cause the inside to heat up and may damage the pump CAUTION 6 Operating Procedure and Notes 6 1 Notes Prior to Starting the Pump 1 Check the motor s power rating including frequency voltage and wiring 2 Recheck to make sure all the parts flange pump casing base plate etc are2. Pump Head 10 6 4 Shutting Down the Pump 1 Close the outlet valve slowly to prevent damage to the pump due to reverse fluid flow water hammer 2 Shut off the pump It should stop gradually If not check the interior of the pump for problems 3 The pump should be checked periodically If the pump is used in a cold operating environment relative to the fluid s freezing point the fluid may crystallize even if the pump is shut down for a very short amount of time To prevent crystallization a drain plug should be included in the piping system or a heating system could be used to maintain the temperature during shutdown 7 Maintenance and Inspection 7 1 Daily Inspection See Table 7 1 Table 7 1 Appearance 1 Check for oxidation or corrosion of the front casing bracket and base plate Check for leakage of the pump and the piping system Check the pump exterior for any physical damage such as corrosion peeled paint Operation 1 Check for irregular sounds and vibrations Check for any abnormal overheating on the surface of motor three phase current imbalance bearing noise and foreign objects blocking the vent of fan etc Check the in tank fluid levels and inlet outlet pressures Check the power supply and motor loading Check and test run backup pumps regularly to ensure they can function properly when needed 7 2 Periodic Maintenance The following items should be inspected quarterly refer
3. Pump head too high 3 NPSHa too low resulting in cavitation 1 High frequency vibration and noise NPSHa too low 2 Fracturing of the bearing and thrust rings resulting in cavitation 3 Decreased pump performance and low flow rate 4 Serious cases may result in dry running anticipated 2 Decoupling of the magnetic drive 1 Motor overloading Viscosity higher than anticipated 2 Decoupling of the magnetic drive 3 Decreased pump performance and reduced flow 1 Corrosion and cracking Wrong pump material selected 2 Rapid corrosion and wearing of bearing 3 Corrosion of the O ring resulting in leakage Q aD Sa Q p a e gt SS m gt D VW OE a 5 oa DM AN _ Q aB Q p 15 AM SERIES Abnormal Condition Possible Symptom and Effect Damage Inlet pipe not submerged 1 Produce high frequency vibrations and noise sufficiently into the fluid or air 2 Fracturing of the bearing and thrust rings sucked into piping system 3 Reduced pump performance 4 Serious cases can lead to dry running a 1 Reduced pump performance Pun Ceh eae ee te 2 Serious cases can lead to dry running i Improper suction resulting in low efficiency e a a a aleve insufficient flow cavitation or dry running Fluids within pump leaks during shut down period resulting in dry running when pump is restarted Starting the pump without priming Starting the pu
4. es 9 Inlet Pressure Gauge F 10 Inlet Piping l E 11 Inlet Piping Support S ali UW 12 Vibration Damper 1911 5 oe 7 rn H omer eee 13 Filter ae 4 0 01 0 02 slope 14 Inlet Tank 13 qo UUW E E 15 Foot Valve 7 14 4 h e j 5s A a Z VW ZA Z Fig 4 1 Fig 4 2 Bad Piping Designs ai h gt 0 5m h or gt 1 5D a i oo D Diameter gt 1 5D al Sind A Me x F ae Fig 4 3 AM SERIES Items to Note Suction condition must satisfy NPSHa gt NPSHr 0 5 m Reduce inlet Head as much as possible Use straight and short piping The pipes should have adequate structural support and shouldn t use the pump as its primary support see Fig 4 1 When designing supports consider the effects of temperature changes on the supports to avoid thermal stress General Inlet piping and connectors should be installed properly to prevent requirements drawing in air The piping system should not have upward bumps that may collect air The inlet piping should also have a 0 01 0 02 slope increase towards the pump see Fig 4 2 There should not be any elbows for at least 5 times the pipe diameter from the opening of the pump The elbow closest to the pump opening should be a long radial elbow There should be at least a 1 5 diameter distance between the pipe inlet and the closest tank wall to prevent circulation see Fig 4 4 The submerge depth of the inlet should be at least 0 5m or at least twice the pipe d
5. premium equipment and complying with established rules and standards The following recommendations should also be implemented 1 Power frequency voltage and capacity should strictly follow the motor s specification sheet and name plate 2 Please select the proper non fuse switch NFB according to the rated current of the motor 3 When using the pump for outdoor applications please make sure the switch is protected from rain 4 Keep the electromagnetic contactor MC from a pump at a suitable distance with a clearly marked warning sign to avoid false starts 5 Tags at the end of wires or diagram shown in the terminal box and method of connection are based on the number wires phases power voltage and mode of start for the motor Be sure to connect the power cable in accordance with name plate for the 9 AM SERIES motor and the connection diagram in the terminal box 6 All wiring operations must be in strict compliance with National Electrical Code and local regulations Make sure to choose the correct wire size and fasten the locking screws to the right torque to prevent loose connections Table 4 1 Wire size Min wire size Recommended AM 10 30 50 Table 4 2 Terminal screw and tightening torque Screw size Tightening torque Recommended 45 kgf cm 80 kgf cm 120 kgf cm Table 4 3 Recommendations for Grounding Wire Cross sectional area of copper phase Minimum cross sectional area of the conduct
6. securely fastened 3 Fill the pump with liquid priming to remove any air within the pump and suction piping 4 Check to ensure the inlet valve is open 5 Using a screwdriver rotate the motor s cooling fan to ensure it is not too tight or stuck 6 2 Starting Up the Pump 1 Check the direction of rotation of the motor by rapidly switching on and off the power 2 Direction of motor rotation can be checked from the fan side It should be clockwise seeing from the fan cover follow arrow direction on the fan cover If the rotating direction reverses change wiring phases by switching any two wire connections 3 Close the outlet valve and start up the pump 4 Slowly open the outlet valve when the motor has reached a stable speed Adjust the outlet valve to obtain the desired operating pressure or flow rate 6 3 Operating the Pump 1 Shut down the pump immediately in the case of cavitation or dry running 2 If decoupling should happen shut down the pump to prevent reducing the magnet s strength 12 AM SERIES 3 During power outages shut off the pump s power supply and close the outlet valve 4 When switching on the pump with the outlet valve closed the outlet pressure should increase If the pressure fails to rise or if the pressure is too low shut down the pump and check the piping and wiring NOTE Outlet Pressure Inlet Pressure Pump Pressure Pump Pressure kg cm Fluid Specific Gravity
7. afaQ iso 9007 Quality afag Environment SERIES kgl IECQ HSPM MAGNETICALLY DRIVEN CHEMICAL PUMP USER MANUAL S Aoo Ii Symbols used DANGER AN WARNING CAUTION Situation where improper handling or operation failure to follow this manual would almost certainly result in death or serious bodily injury Situation where improper handling or operation or failure to follow this manual could result in serious bodily injury or death Situation where improper handling or operation or failure to follow this manual could result in bodily injury and or equipment damage When pump is installed in an environment with a potentially explosive atmosphere strict adherence to our instructions must be followed shown in this manual with the Ex symbol Situation where improper handling or operation or failure to follow instructions in this manual would almost certainly result in serious bodily injury or death AM SERIES Table of Contents Foreword 2 Safety Requirements 3 Inspecting the Pump Prior to Installation 4 Installation Piping and Wiring 5 Notes for Operation 6 Operating Procedure and Notes 7 Maintenance and Inspection 8 Incorrect Usage and Selection 9 Repair and Warranty Annex A Exploded View and Parts List Annex B Description of ATEX specific marking AM SERIES 1 Foreword Thank you for purchasing an ASSOMA pump To e
8. aken when installing or storing the pump in the following places Please consult with ASSOMA INC or authorized dealer in the near region 1 Places where flammable gas dust or material is used or placed CAUTION 2 Places where corrosive gas is generated 3 Places where the ambient temperature is higher than 40 C or lower than 0 C 4 2 Piping 1 AM 30 50 flange screw is either M10 or 3 8 The tightening torque is 5 N m 2 The allowable load of pipe on the pump is as follows Force N Moment N m Model Fx Fy TaN o o 50 9 wo is wo 30 mo 100 80 so 40 25 4 25 o mso 120 100 100 160 25 40 25 eo AM SERIES Model mo so o 50 9 1 is 30 Note The values in table are applicable for within 40 C 4 3 Notes for Installing the Piping System 1 Outlet Piping 2 Throttle Valve 3 Priming Piping y 4 Priming Valve Lhe K 5 Check Valve 3 a Be 6 Outlet Pressure Gauge j E35 _ 7 Motor x Z 6 8 Pump tt
9. ation see Fig 4 4 2 The submerge depth of the inlet should be at least 0 5 m or at least twice the pipe diameter below the liquid surface see Fig 4 4 Inlet piping 3 There should be a distance of at least 1 5D between the bottom of the tank and the beginning of the inlet pipe opening see Fig 4 4 4 If there are two or more inlet piping in the same tank they should be placed at least 3D apart to prevent mutually disrupting each other s flow Foot valve Please install a foot valve if upward suction is used 1 If suction method is upward suction please install a self priming cylinder to prevent dry running due to a leaking foot valve 2 The size of the self priming cylinder should have a minimum liquid level of at least 0 5 m above the opening of the pump A control valve should be installed to make disassembling of the pump easier The valve should only be shut off when the pump is to be Control valve detached for maintenance or repairs 2 We recommend the use of valves that have the least loss when fully opened like a gate valve It is generally not recommended to install a filter in front of a pump Filter which can unpredictably increase suction system resistance If a filter has to be used it should be cleaned regularly to ensure a smooth flow 1 The material used should be corrosion resistant otherwise a pressure gauge diaphragm should be used 2 During operation if the vacuum gauge readi
10. cted power outages A control valve can be used for controlling the flow of fluids Do not run the pump with the control valve closed for an extended period of time Control VALNE When starting the pump always start with a closed valve and then slowly open the valve to obtain the desired operating pressure and flow Always open or close the valve gradually A vent should be installed if the horizontal section of the outlet piping is Exhaust valve very long 1 Suction condition must satisfy NPSHa gt NPSHr 0 5 m 2 Reduce inlet Head as much as possible Use straight and short piping 3 The pipes should have adequate structural support and shouldn t use the pump as its primary support see Fig 4 1 4 When designing supports consider the effects of temperature changes Ei on the supports to avoid thermal stress General 5 Inlet piping and connectors should be installed properly to prevent 2 requirements sucking in air see Fig 4 3 E 6 The piping system should not have upward bumps that may collect air The inlet piping should also have a 0 01 0 02 slope increase towards the pump see Fig 4 2 7 There should not be any elbows for at least 5 times the pipe diameter from the opening of the pump The elbow closest to the pump opening should be a long radial elbow AM SERIES Items to Note 1 There should be at least a 1 5 diameter distance between the pipe inlet and the closest tank wall to prevent circul
11. d level Low flow over extended period of time 5 ao D F a D s Oua z pd Damaged impeller Damaged motor bearings Wearing of the impeller bearings Blockage of inlet piping or foot valve Improper Maintenance Blockage of the outlet piping AM SERIES 9 Repair and Warranty When a problem arises please read this instruction manual and try to troubleshoot the problem If the problem cannot be found or if replacement parts are needed please call the distributor and give them the following information 1 The pump model and manufacturing serial number indicated on the nameplate 2 The operating condition 3 The situation under which the pump fails Please refer to the warranty card for details of the warranty terms and conditions 17 AM SERIES Annex A Exploded View and Parts List Inlet Flange Impeller Rear Thrust Ring B21 M B21 Bracket Shaft Base Motor Table A AM series tightening torque Material Item 18 AM SERIES Annex B Description of ATEX specific marking 1 The ATEX specific marking of pump body without motor is indicated on the name plate 2 Please check the name plate on the motor for ATEX specific marking for the motor The ATEX specific marking indicated on the name plate of pump x Il 2 G c HWA T4 Distinctive Community mark Equipment group 2 Equipment category Where ex
12. eeds 2 5 m sec 4 Two or more pumps share the same outlet piping system 5 To prevent back flow water hammer from damaging the pump during unexpected power outages A control valve can be used for controlling the flow of fluids Do not run the pump with the control valve closed for an extended period of time When starting the pump always start with a closed valve and then slowly open the valve to obtain the desired operating pressure and Control valve flow Always open or close the valve gradually To facilitate the adjustment of discharge flow and the adjustment of motor overload it is recommended to install valves on outlet piping And if both a check valve and a control valve are to be installed the order of allocation is pump check valve control valve A vent should be installed if the horizontal section of the outlet piping is Exhaust valve very long 1 Explosive and inflammable liquids 2 Corrosive liquids 3 Toxic liquids 4 Liquids harmful to the human body or detrimental to health 5 Liquids that could produce a chemical reaction Be cautions when dangerous liquids are transferred When the pumps are used to transfer dangerous liquids listed as below the pump piping and fittings must be checked and monitored to ensure no leakage occurs Leakage may result in WARNING personal injury explosion and or fire 4 4 Wiring The wiring system should be done properly by qualified personnel using
13. fan feels tight or if there are unusual sounds the interior of the pump may have been damaged during shipping If there is any damage to the pump please contact the seller immediately to arrange for replacement parts and to allow for timely communication with the logistics company to determine liability Each pump has a name plate indicating the pump model MFG number rated head flow rate and motor power voltage and frequency Check these data to ensure they comply with your order and application Although some motors are marked usable for both 50 Hz and 60 Hz the impeller size of the pump should be trimmed according to frequency applied Application under incorrect frequency may cause motor overload use under higher frequency or pump under performance use under lower frequency Name plate information including motor name plate and pump name plate plays an important role for the operation and maintenance of the pump It 1s proposed to re copy data on nameplates and store it securely The flow and head on the nameplate is the rated operating point or the operating point based on customer demand Where Head means Total head Total Head Static Head Dynamic Head V Vi Total head H 28 The pump is designed and manufactured to the specifications agreed upon by the user and ASSOMA INC such as fluid composition fluid temperature working pressure environmental conditions and necessary operational information Use the
14. fect certain medical devices such as pacemakers Personnel with such devices are advised to consult their physician and device manufacturer to determine a safe distance from the pump The pump operator and pump operation supervisor must not allow any operator who has little or no knowledge of the pump to run the pump Pump Operators must have a sound knowledge of the pump and its operation Do not use a damaged pump Doing so could result in injury or fire Keep the pump away from heat source or direct flame Do not place any open flame or flammable object near the pump Transport installation piping and wiring connections operation adjustment maintenance and inspection should be carried out by qualified personnel Having unqualified personnel perform these tasks could result in electric CAUTION shock injury or fire Do not block name plate or warning labels from view Do not stand on the pump or place heavy objects on the pump under any circumstances Failure to comply may result in equipment damage and or serious injury Disposal of used or damaged pump must be done in accordance with local laws and regulations AM SERIES 3 Inspecting the Pump Prior to Installation 1 2 3 4 5 6 7 Check the pump exterior for any physical damage that may have been incurred during shipping Use a small screwdriver to rotate the impeller of the motor s cooling fan The fan should turn easily If the
15. iameter below the liquid surface see Fig 4 4 op Inlet piping There should be a distance of at least 1 5D between the bottom of the 2 tank and the beginning of the inlet pipe opening see Fig 4 4 3 If there are two or more inlet piping in the same tank they should be placed at least 3D apart to prevent mutually disrupting each other s flow Foot valve Please install afoot valve if upward suction is used see Fig 4 1 1 If suction method is upward suction please install a self priming Self priming cylinder to prevent dry running due to a leaking foot valve cylinder 2 The size of the self priming cylinder should have a minimum liquid level of at least 0 5 m above the opening of the pump Acontrol valve should be installed to make disassembling of the pump easier The valve should only be shut off when the pump is to be Control valve detached for maintenance or repairs We recommend the use of valves that have the least loss when fully opened like a gate valve It is generally not recommended to install a filter in front of a pump Filter which can unpredictably increase suction system resistance If a filter has to be used it should be cleaned regularly to ensure a smooth flow The material used should be corrosion resistant otherwise a pressure gauge diaphragm should be used Vacuum gauge a During operation if the vacuum gauge reading fluctuates either there are air bubbles in the syste
16. m or cavitation has occurred AM SERIES Items to Note The weight of the outlet piping should be properly supported to prevent putting excessive stress on the pump see Fig 4 1 A priming piping must be installed if the suction system does not General employ positive pressure 1 e upward suction see Fig 4 1 requirements The flow rate in the outlet piping should not exceed 3 m sec The ability for each component in the piping system to withstand pressure should be calculated to determine the maximum allowable operating pressure anaes Upward suction pumps that do not have a self priming cylinder should S PIPIS Ihave a priming piping system Pressure gauge used should be able to read beyond the maximum operating pressure Pressure gauge should be made of material that is corrosive resistant otherwise a diaphragm should be used A valve can be installed on the piping that leads to the pressure gauge to facilitate maintenance and to lengthen the gauge s service life During operation if the pressure gauge reading fluctuates either there are air bubbles in the system or cavitation has occurred Pressure gauge Outlet Piping A check valve should be installed in the following situations Discharge pressure exceeds 2 kg cm and flow rate exceeds 3 m sec Check valve Two or more pumps share the same outletpiping system To prevent back flow water hammer from damaging the pump during unexpe
17. mp without priming pump without prinung Diy running causing damage to pump direction voltage 1 Low performance and vibrations due to drawing in air Fracturing of the bearing and thrust rings Dry running Produce vibrations and noise Foreign objects stuck in impeller 2 Reduced efficiency and flow Serious cases may result in dry running Insufficient cooling of pump Excessive radial and axial force reducing service life of bearing and thrust rings 1 Low NPSHa resulting in cavitation Transfer fluid temperature too high 2 Reduced strength of the magnet resulting in decoupling 1 Rapid wearing of the bearing Fluid cay ar aic les 2 Wearing of the impeller and casing surfaces Deformation of the O ring Result in leakage 0 in Result in leakage 0 1 Resulting in vibrations and noise 2 Reduced pump performance and fluid flow 1 Produce vibrations and noise 2 Overloads the motor 3 High Motor temperature Cooke Ae E off 1 Produce vibrations and noise P 2 Overloads the motor 1 Produce vibrations and noise 2 May result in fracturing of the impeller shaft Reduced pump performance and low flow rate or may result in cavitation Serious cases may result in dry running Low flow or no flow Pump unable to dissipate heat Serious cases may result in overheating of the pump and outlet piping Improper Piping or Leaking foot valve or inlet piping Low inlet tank flui
18. ng fluctuates either there are air bubbles in the system or cavitation has occurred The weight of the outlet piping should be properly supported to prevent putting excessive stress on the pump A priming piping must be installed if the suction system does not employ positive pressure 1 e upward suction The flow rate in the outlet piping should not exceed 3 m sec The ability for each component in the piping system to withstand pressure should be calculated to determine the maximum allowable operating pressure Self priming cylinder Vacuum gauge General requirements see Fig 4 1 Co he ee Upward suction pumps that do not have a self priming cylinder should eee oa have a priming piping system 1 Pressure gauge used should be able to read beyond the maximum operating pressure 2 Pressure gauge should be made of material that is corrosive resistant otherwise a diaphragm should be used Outlet Piping lw s 3 A valve can be installed on the piping that leads to the pressure gauge to facilitate maintenance and to lengthen the gauge s service life 4 During operation if the pressure gauge reading fluctuates either there are air bubbles in the system or cavitation has occurred AM SERIES Items to Note A check valve should be installed in the following situations 1 Outlet piping is long 2 Head of outlet is more than 15 m Check valve 3 Discharge pressure exceeds 1 5 kg cm and flow rate exc
19. nsure proper operation and maximum efficiency please read this instruction manual carefully Failure to follow the recommended operating instructions outlined in this manual may result in serious personal injuries and or equipment damage 2 Safety Requirements This section lists general information about safety The relevant safety requirements of installation wiring operation and maintenance will set out in the relevant sections ASSOMA INC may not be held responsible for personal loss or property damage resulting from failure to follow the safety instructions contained herein ACE certified motor should be used The explosion proof grade of AM series pump is dependent on the material selected and motor used Please consult our order specification sheet or contact one of our local representatives to select the best product for your needs Refer to Annex B for a description of the ATEX markings Be sure to turn off the power before connecting disconnecting or making any changes to the pump s wiring The customer shall not modify the pump under any circumstances Doing so could result in an unexpected accident ASSOMA INC shall not be responsible for accidents or damage resulting from equipment modified by the customer Be sure to take special precautions when performing operations if using hazardous explosive or inflammable liquids Strong magnetic field warning The AM pump uses strong permanent magnets which may af
20. nternal parts 3 We recommend using a dry run protector to detect dry run occurrences to avoid causing unnecessary damage to the pump 5 2 Operating Temperature 1 Operating temperature may change the fluid s viscosity vapor pressure and corrosiveness Please ensure that your pump is operating within the proper temperature range 2 The optimal temperature range for pumping pure water Casing material PP PPG PVDF 0 C 80 C Casing material ETFE CF 0 C 95 C 3 Please consult your local distributor for the temperature range suitable for your chemicals 4 We recommend an operating environmental temperature to be between 0 C 40 C piping with your bare hands It may cause burns Any exposed hot surfaces including pumps motors and piping must have warning signs prominently displayed CAUTION The parts should be isolated from accidental contact When the pump is used with a hot liquid do not touch the front cover or the 5 3 Concentrations Viscosity and Specific Gravity 1 Achange in a fluid s concentration will usually affect its viscosity and specific gravity Other physical properties like corrosiveness may also change with the fluid s concentration therefore the selected pump material should be able to withstand the corrosive properties of the fluid 2 When the fluid s viscosity and or specific gravity differ from that of water the shaft power flow rate and pump head may change as well
21. ors supplying the equipment external protective copper conductors Be sure not to performing any type of maintenance while the power is on It may lead to electric shock Power supply and wire connecting work should be performed by qualified DANGER personnel only After wiring be sure to replace the terminal box cover in its original position Failure to do so could result in electrical shock Install an earth leakage breaker The operation of a pump without using an earth leakage breaker may cause an electrical shock Install an optional leakage breaker in the system before running operation The pump should be properly grounded with a recommended ground resistance of 10 Q or less In Taiwan use third type grounding Each pump must have a separate grounding wire directly connected to the common ground terminal and must not form a loop between wires If long wiring results in more than 3 voltage drop in the line replace with bigger gage wires WARNING 10 AM SERIES 5 Notes for Operation 5 1 Dry Running 1 Our pump use the transfer fluid as its internal cooling system therefore dry running the pump can cause the temperature to rise to a dangerous level that may seriously damage the pump 2 If dry running occurs switch off the pump immediately Let it cool for at least an hour before priming the pump to prepare it for normal operation NOTE Do not subject the pump to rapid cooling which may damage the i
22. plosive atmospheres caused by gases vapors or mists are concerned Protection type Constructional safety T4 Temperature class Max permissible surface temperature 135 C a cs EI 1 When pump is installed in a potentially explosive atmosphere be sure to select an explosion proof motor and make sure both the pump and the motor are suitably rated for the environment DANGER 2 Both pump and motor must be properly grounded or there may be a risk of static electric discharge 3 Never run pump without priming Never operate the pump below the minimum recommended flow rate for over minute gt 19
23. pump strictly in accordance with the pump specifications and application range If the user intends to change the operation condition please contact ASSOMA INC or the authorized dealer in the near region to obtain the permission in writing before operation Unpack a pump for inspection without proper hoisting support or lifting equipment may cause serious personal injury or damage to the pump CAUTION AM SERIES 4 Installation Piping and Wiring 4 1 Installation Location 1 The pump should be close to the ground and located near the inlet tank 2 There should be sufficient space reserved around the pump to facilitate future maintenance and repairs 3 The pump and its wiring should be placed in a relatively dry environment protected from possible flooding 4 Install in a location where the ambient temperature will not rise above 40 C 5 Secure the pump to a level base plate or to equipment with anchor bolts 6 May not be used at altitudes above 1000 m 1 Be sure to use the hanger bolt where applicable to lift the pump Lifting from other parts of the pump may damage the pump When hoisting do not pass under a raised pump A serious injury could occur if the pump is accidentally WARNING dropped Before lifting check the weight of the pump Do not lift a pump which exceeds the rated weight of the hoist And be sure no one is standing below the pump while lifting or transporting Special care should be t
24. s for the bearing and shaft However the total wear between the shaft and bearing bearing ID shaft OD must not exceed 0 3 Shaft sleeve outer diameter AM 50 mm Similarly the total wear between the thrust ring and wear ring must not exceed 0 3 mm When replacing the individual parts you may choose to replace just the parts that have more wear 7 4 Preventive Maintenance Operational data like vibration flow rate voltage etc can be collected and upper and lower limits can be set for each of the values The collected data can be used for trend analysis see Fig 7 1 which can be a basis in which to determine when to carry out preventive maintenance e Upper control imit Time AM 1s made at factory with LCL Lower contro Limit vibration below 3 0 mm sec rms Fi ig 7 1 measured at flange edge of bracket and the noise value is below 75 dB at rated point UCL i _ T LCL Measured Data 14 AM SERIES Strong magnetic field warning AM s powerful permanent magnetic coupling could adversely affect persons who are assisted by medical electronic devices such as a pacemaker DANGER 2 Be sure to turn the power off before performing any type of maintenance repair or inspection Make special provisions so that no other operator mistakenly turns on the power supply while someone is working on the pump In a noisy or poor visibility environment display a sign near the power supply swi
25. tch to notify others that someone is WORKING on the pump Power supply mistakenly turned on during maintenance may lead to personal injury When handling chemicals ventilate the work area well In addition the operator must wear protector gear such as a safety mask safety goggles and protective gloves No remodeling Remodeling of the pump by the user may result in serious injury electric shock or damage to the pump Do not attempt to remodel as it is very dangerous Strong magnetic warning The impeller assembly contains strong magnets Be careful not to get your hands or fingers pinched during assembly of the pump Keep magnetic cards and electronic devices away from the pump to prevent the magnetic field from causing damage Use the right tools for any maintenance disassembly or assembly Be careful with hazardous liquids If pumping dangerous chemicals be sure to drain the pump before CAUTION disassembling and rinse the parts and connecting pipes fittings well after disassembly Please note that small amounts of chemical may still remain in the internal parts or pipe fittings 8 Incorrect Usage and Selection Abnormal Condition Possible Symptom and Effect Damage System resistance too high 1 Insufficient or no flow or 2 Pump unable to effectively dissipate heat Pump head too low 3 Excessive wear on bearing and thrust rings Resistance lower than expected 1 Excessive flow or 2 Overloading of the motor
26. to Table 7 2 Table 7 2 Inspection Item F Cracks 1 Replace 2 Scratch marks except when pumping 2 Contact the distributor Front and Rear particle laden fluids Casing 3 Crystallization or sludge 3 Clean a Shaft support loose or deformed 4 Contact distributor O ring Deformed corroded or swollen Replace SY Impeller and 1 Scratch marks or cracks 1 Contact distributor Magnet 2 Cracked bearing or crys vation 2 Contact distributor AM SERIES 3 Bearing displays signs of wear and tear 3 Replace if worn excessively 4 Crystallization and other sludge 5 Foreign objects stuck in impeller 4 Clean 6 Impeller deformed 5 Remove the objects 6 Contact distributor Shaft and Thrust 1 Scratch marks 1 Contact distributor Ring 2 Cracks 2 Replace 1 Resistance of three phases and insulation l Repair or change if abnormal impedance is found 2 Check amount of lubricant when using 2 Keep amount of lubricant at open bearing proper level Used gasket or O ring even without displaying sings of corrosion may also cause seal failure due to deformation or elastic reduction We strongly recommend replacing the O ring when the pump is under repair or service CAUTION 7 3 Maintenance and wear tear limits Table 7 3 Unit mm Shaft outer diameter 2 1 7 ree ee AM 30 Bearing inner diameter Thrust ring thickness Thrust ring thickness Note Table 7 3 provides the recommended dimension
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