TECHNICAL SERVICE MANUAL
Contents
1. DO NOT PLACE FINGERS HERE DO NOT PLACE FINGERS HERE FIGURE 8 PUMP SEPARATION SEQUENCE FIGURE 9 SETSCREW INNER MAGNET ASSEMBLY LOCKNUT FIGURE 10 INNER MAGNET AND LOCKNUT ASSEMBLY care that the thrust washer on the rotor does not come off Remove the thrust washer from behind the rotor if worn cracked or the rotor and shaft is being replaced Remove and check the casing side adaptor plate thrust washer for cracks or wear replace if necessary 16 Inspect the adaptor plate bushing 25 If the bushing needs to be replaced see Installation of Bushings on page 7 If the pump is leaking between adaptor plate and casing 31 remove the socket head capscrews 13 from the adaptor plate Slide the adaptor plate out of the casing 17 Inspect the O ring 33 Do not remove the O ring from the plate adaptor casing unless it is damaged especially if it is PTFE encapsulated If a new O ring is required See Pump Assembly on page 8 18 Inspect the2. ADAPTOR PLATE i A J CASING a BUSHING INCH MM E 000 0 000 005 0 127 f f U FIGURE 14 ADAPTOR PLATE BUSHING POSITION PUMP ASSEMBLY DANGER Follow these directions exactly to avoid injury to self or damage to the pumping unit Be careful to keep the inner and outer magnets at least 1 foot apart until step 17 Do not engage the magnets in any other fashion SECTION TSM 635 3 ISSUE C PAGE 8 OF 13 CAUTION Do not place fingers onto the front of pump mounting flange Align the canister into bore of the bracket and gently slide it in When the magnets start to engage the unit will finish engagement on its own very rapidly unless the 5 8 x 6 capscrew is properly used Make sure fingers are not on the front of the pump See Sequence in Figure 18 DANGER Be certain that the driving means motor tur bine engine etc has been locked out or made non operational so that it cannot be started while work is being done on pump NOTE Some steps require a second person for ease of assembly Use a suitable lubricant compatible with the fluid being handled when reassembling the pump Inspect all parts especially drilled holes in the casing for draining to make sure they are not plugged Replace any worn parts remove any burrs and clean all parts before assembling the pump Use a non magnetic surface to assemble the pump 1 Ifthe adaptor pl
3. DO NOT PLACE FINGERS HERE DO NOT PLACE A FINGERS HERE lt lt J CAPSCREW FIGURE 18 PUMP ASSEMBLY SEQUENCE SECTION TSM 635 3 ISSUE C PAGE 10 OF 13 16 Inspect the bearing housing bearings and lipseals replace if needed Refer to Disassembly Assembly of Bearing Housing page 7 Inspect the outer magnet for any steel objects which may be attached Remove any foreign material 17 Insert three fully threaded 5 8 X 6 hex head capscrews into the bearing housing until they are fully extended in front of the bearing housing to control assembling the pump see Figure 18 To keep the bearing housing and bracket assemblies properly aligned and for additional safety it is recommended to use 2 lengths of all thread rod 12 threa
4. casing for wear particularly in the area between the ports Clean all other parts thoroughly and examine for wear or damage When making major repairs such as replacing a rotor and shaft it is advisable to also install a new head and idler pin idler and bushing and adaptor plate bushing See Installation of Bushings on page 7 DISASSEMBLY ASSEMBLY OF BEARING HOUSING DISASSEMBLY The bearing carrier assembly features two tapered roller bearings two lipseals and one spacer If further disassembly of this unit is required proceed as follows 1 Remove locknut 1 and washer 2 2 Loosen the setscrews holding the end cap 3 in the bracket Screw the end cap out of the bracket 3 Inspect the bearings 6 for wear replace as needed Inspect the lipseals 5 for wear replace as needed The lipseals will need to be replaced if removed 5 If the bearings are worn it is recommended to replace the entire bearing Remove the inner bearing spacer collar 8 Press the inner bearing cup out of the bearing housing and the outer bearing cup out of the end cap The bearings will need to be replaced if the cups are removed ASSEMBLY 1 If the bearing cups were removed press the cup of the outer bearing into the end cap Press the cup of the inner bearing into the bearing housing 2 Press the inner lipseal into the bearing housing and the outer lipseal into the end cap and then lubricate the lipseals see Figure 12
5. or reduce pump speed e The strainer is partially clogged e An air leak somewhere in suction line e The pump may be running too slow Is the motor at the correct speed and wired up correctly e The pressure relief valve is set too low stuck open or has a damaged poppet or seat e The bypass line around the pump is partially open e The pump is worn out or there is too much end clearance Pump takes too much power stalls motor e The liquid is more viscous than the unit is sized to handle e The system pressure relief valve is set too high e The bushings have frozen up or the liquid has set up in the pump CORPORATION TECHNICAL SERVICE MANUAL UNIVERSAL MAG DRIVE PUMPS SERIES 8124A 8123A 8127A issue c CAUTION TO REDUCE THE RISK OF LEAKAGE WITH VIKING MAG DRIVE PUMPS USERS SHOULD COMPLY WITH THE FOLLOWING GUIDELINES AND ADHERE TO THE FOLLOWING PROCEDURES The pump configuration and materials used ina pump are tailored to the application for which it is ordered Users should never use a pump for an application that is different from the application specified when the pump was ordered This includes differences in liquid speed pressure temperature or viscosity Users must understand the characteristics of liquids they are pumping and be especially aware of any particulates in the liquid Particulates can cause rapid wear of the bushings especially if carbon graphite bushings are used Hard bushi
6. routine maintenance and for inspection during operation to check for leakage and monitor WARNING pump operation SECTION TSM 635 3 ISSUE C PAGE 2 OF 13 ROTATION Viking Mag Drive pumps are designed to run in either direction See Pump Rotation page 10 PRESSURE RELIEF VALVES 1 Viking pumps are positive displacement pumps and must be provided with some sort of pressure protection This may be a relief valve mounted directly on the pump an inline pressure relief valve a torque limiting device or a rupture disk Do not rely on decoupling of magnets for protection from over pressure this may result in damage to the magnets pump or other equipment 2 Relief valves are mounted as standard on the casing of all pumps 3 If the pump rotation is to be reversed during operation pressure protection must be provided on both sides of the pump 4 The relief valve adjusting screw cap must always point towards the suction side of the pump see Figure 2 If the pump rotation is reversed remove the pressure relief valve and turn end for end see Pump Rotation page 10 5 Pressure relief valves cannot be used to control pump flow or regulate discharge pressure For additional information on pressure relief valves refer to Technical Service Manual TSMO00 and Engineering Service Bulletin ESB 31 CAUTION Rare earth magnets used in couplings have extremely strong magnetic fields capable of changing performan
7. will line up with the drive pins on the back of the rotor Place the thrust washer with a groove onto the adaptor plate so that the groove in the thrust washer will line up with the grooves in the adaptor plate see Figure 15 SUCTION DISCHARGE PORT ADAPTOR PORT PLATE GROOVE VIEWED FROM HEAD END DISCHARGE PORT ADAPTOR PLATE GROOVE FIGURE 15 ADAPTOR PLATE CASING POSITIONING Q SIZE SHOWN Having a second person on the opposite side of the casing will help in placing the rotor and shaft into the pump and prevent damage to the adaptor plate bushing Have the second person support the shaft through the hollow shaft Slide the shaft into the adaptor plate bushing until the thrust washers come in contact Make sure that the thrust washers remain seated on the drive pins and flat against the rotor or adaptor plate Apply a light oil to the second set of thrust washers on the side of the thrust washer that will touch the inner magnet or adaptor plate Slide the thrust washer with a groove over the shaft into the adaptor plate bracket side groove facing out Then install the key into the shaft Clean the face on the inner magnet that faces the adaptor plate Place the second thrust washer that does not have a groove onto the inner magnet so that the blind holes in the thrust washer will line up with the drive pins on the inner magnet Support the inner magnet using the inner magnet lift Slide the inner magnet ont
8. Electronic copies of the most current TSM issue can be found on the Viking Pump website at www vikingpump com TECHNICAL SERVICE MANUAL UNIVERSAL MAG DRIVE PUMPS SERIES 8124A 8123A 8127A CONTENTS Introduction 2 2 Raan RR 1 Special Information 06 1 Safety Information 2 2 2 Maintenance 0 0 00 eee ee ee 3 Model Number System 068 4 Parts Identification Drawings 5 Disassembly of Pump 068 5 Disassembly Assembly of Bearing Housing 7 Installation of Bushings 4 7 Assembly of Pump 004 8 Pump Rotation 2 500484 10 Adjusting End Clearance 10 Pressure Relief Valve Instructions 11 Troubleshooting 0 00002 ae 12 Warranty oak amp oe Ek ao oe OR EG OG 13 WARNING Persons with surgical implants of a metallic or electronic nature should avoid working on pump especially the magnet assembly This information must be read fully before beginning any maintenance or repair of the pump All maintenance or repair must be done by SUITABLY TRAINED or qualified persons only INTRODUCTION The illustrations used in this manual are for identification purposes only and cannot be used for ordering parts Obtain a parts list from the factory or a Viking representative Always give the complete name of a part the part number and material a
9. Inspect the O ring 65 Do not remove the O ring from the plate adaptor 67 canister unless it is damaged especially if it is PTFE encapsulated If a new O ring is required See Pump Assembly on page 8 Insert a brass bar into the rotor 36 through a port between two rotor teeth and remove the split locknut 66 see Figure 10 Support the inner magnet using inner magnet lift 3 810 026 999 00 Do not forget this is a very strong magnet Slide the inner magnet assembly off of the shaft Make sure the thrust washer 60 does not fall off the inner magnet assembly Place inner magnet on non magnetic cradle similar to Figure 11 Inspect the magnet assembly for damage or wear replace if needed If further disassembly is required proceed to the next step Remove the shaft key from the rotor shaft Remove the thrust washer 60A from the adaptor plate if worn or cracked The rotor and shaft may now be removed by tapping on the end of the shaft with a soft face hammer If a soft face hammer is not available a regular hammer may be used with a piece of hardwood Take SECTION TSM 635 3 ISSUE C PAGE 6 OF 13 DO NOT PLACE P FINGERS HERE WW Pa CAPSCREW E
10. PUMP PAGE 4 OF 13 TEM TEM TEM 13 Capscrews for Adaptor Piate Req 40 Head and ler Pn Assembly 87 _ inerMagnetAssembyy 25 adaptor Pate Busting 43_ studsfortiead erea s0 Canter Car Jees O aa nus for toa Regs 60_ Thrust Washer Rotating Reqd 32 adaptor Pate O Ring 45 Rener Valve Gaskets Rega 60A Thrust Washer Stationary Reqd 35 Head O Ring 26 Capscrews or Reret Vaive Reaid 62 Key for Roiorstat 736 Rotor ana SnaRAssemby a7 Reletvave 6 Shims tortead ar er ana BushingAssemby 51 Stus tor Flanges terega 65 censerorn Cae erson 52 nuns for Flanges eReao 66 Spittocknt FIGURE 6 EXPLODED VIEW UNIVERSAL MAG DRIVE PUMP CANISTER THROUGH RELIEF VALVE 8 W Ca loam 6 Tapered Roter Bearng Reqe 14 _ Capscrows for Disassembly Reqd 2 flocrwasher 7 eeano nosna r racket OOOO Ca ena cap va Capscrews or Bearing Housing Reqd 28 _ Capscrows for Mounting Bracket Z Reqd a ouer Bearing Spacer 8 finner Bearing Spacer 8A _ Capscrows for Bracket Req FIGURE 7 EXPLODED VIEW UNIVERSAL MAG DRIVE PUMP BRACKET AND OUTER MAGNET ASSEMBLY PUMP DISASSEMBLY 3 Use a non magnetic surface to disassemble the pump 4 Mark the head 40 and casing 31 before disassembly WARNING to mee proper ARa 5 To inspect the head and pin assembly 39 and 40 and Refer to DANGER amp CAUTION listed on page 2 idler and bushing assem
11. ate O ring on the casing side needs to be replaced apply a lubricant to the O ring and place it onto the casing side of the adaptor plate If the O ring is PTFE derivative encapsulated follow these special instructions Do not attempt to reuse this type of O ring if it has been removed Immerse a new O ring in boiling water for a few minutes Remove it from the water and stretch out the O ring This ensures it will fit into the plate or groove without forcing the O ring over a sharp edge Run hot water over the O ring until it shrinks down tight Hot water makes the PTFE pliable and allows the inner elastomer to pull the PTFE back to the original size Dry it with compressed air 2 Position the adaptor plate so the adaptor plate groove aligns to groove in the casing bore at suction port see Figure 15 Carefully slide the adaptor plate into the bracket side of the casing Use care to prevent cutting the O ring with the edge of the adaptor plate or casing Secure into position by tightening the eight capscrews 3 Apply lubricant to the ID of the adaptor plate bushing Clean the rotor and shaft so it is free of dirt grit and other debris Remove burrs around the keyway and shoulder of the shaft 4 Apply a light oil to the first set of thrust washers on the side of the thrust washer that will touch the rotor or adaptor plate Place the thrust washer that does not have a groove onto the shaft so that the blind holes in the thrust washer
12. bly 37 and 38 remove the before proceeding head nuts 44 6 Remove the head from the pump Tilt the top of the NOTE Some steps require a second person for ease pump head back during removal to prevent the idler of disassembly from falling off the idler pin If the casing was not 1 Drain the liquid being pumped by removing the two drained in Step 1 be careful of the liquid draining out drain plugs if present Both are located in the bottom between the head and casing Avoid damaging the of the casing Once the liquid has drained replace the head shim set 63 since all shims are required to plugs maintain end clearance Inspect the O ring 35 Do h ring f he pl i 2 Refer to Figures 6 and 7 for the names of parts not remove the O ring from the plate adaptor casing SECTION TSM 635 3 ISSUE C PAGE 5 OF 13 10 11 12 13 14 15 unless it is damaged especially if it is PTFE derivative encapsulated If a new O ring is required See Pump Assembly on page 8 Remove the idler and bushing assembly Inspect the idler bushing for wear If the idler bushing needs to be replaced see Installation of Bushings on page 7 If further disassembly is required proceed to the next step If further disassembly is required separate the pump from the motor Remove the six hex head capscrews 7A securing the bearing housing to the bracket Support the bearing housing with an overhead hoist using a tool See Figu
13. ce or damaging items such as the following Pacemakers Metal Implants Watches Computers amp disks Credit Cards DISCHARGE aS SUCTION RELIEF VALVE FIGURE 2 RELIEF VALVE POSITION MAINTENANCE Series 8124A 8123A and 8127A pumps are designed for long trouble free service life under a wide variety of application conditions with a minimum of maintenance The points listed below will help provide long service life CLEANING PUMP Keep the pump as clean as possible This will facilitate inspection adjustment and repair work LUBRICATION Bracket bearings require external lubrication This must be applied slowly with a handgun to lubrication fittings every 500 hours of operation with multi purpose grease NLGI 2 Do not over grease Applications involving very high or low temperatures will require other types of lubrication Refer to ESB 515 Consult factory with specific lubrication questions STORAGE If the pump is to be stored drain and pour non detergent SAE 30 weight oil or compatible alternative into the pump port Apply grease to the pump shaft if accessible Viking suggests rotating the pump shaft every 30 days to circulate the oil in the pump The pump should be stored in a dry area SUGGESTED REPAIR TOOLS The following tools are required to properly repair series 8124A 8123A and 8127A pumps These tools are in addition to standard mechanics tools such as open end w
14. ded into opposite capscrew locations in the bracket and slide through the corresponding holes in the bearing housing 18 Back the capscrews off being careful that the end of the capscrew is positioned in the counterbore hole of the bracket Secure the bearing housing to the bracket with six capscrews Make certain that the power supply to the pump is Locked out Check that the pump rotates freely by spinning the motor fan blades or pump shaft PUMP ROTATION Process fluid is generally fed to the hollow shaft and idler pin from the discharge side of the pump Fluid is pushed into the canister bushing and around the inside of the canister Then the fluid flows through the thrust washers and adaptor plate bushing interface back to the suction side of the pump When the pump is operated in the opposite direction the fluid flow is reversed see Figure 17 ADJUSTING END CLEARANCE Standard end clearance of 0 010 is used on sizes Q and QS End Clearances are adequate for viscosities up to 2500 SSU 540 cSt SAE 40 lube oil at room temperature Higher viscosities require additional clearances As a general rule the end clearance is doubled for higher viscosities For specific recommendations on end clearance for high viscosity or for operating temperatures above 225 F 107 C check with your Viking representative or consult the factory Use either of the following procedures to properly adjust the end clearance when replacing s
15. for lipseal and bearing orientation 3 Screw the end cap into the bearing housing clockwise until it contacts Do not over tighten the end cap 4 Inspect the outer magnet to make sure it has not picked up any foreign particles which could damage the pump Slide the inner roller bearing onto the shaft followed by the inner bearing spacer 5 Slide the outer magnet assembly into the bearing housing Slide the outer roller bearing onto the shaft Slide the outer bearing spacer collar onto the shaft and into the outer lipseal followed by the lockwasher and locknut 6 Tighten the locknut to 170 190 ft lbs of torque and then bend over the appropriate lockwasher tab 7 Unscrew the end cap counterclockwise by hand until there is considerable drag on the bearings Mark the end cap and bracket in the same spot Then screw in the end cap clockwise 5 16 radially from the mark Tighten the end cap setscrews 8 Grease the bracket using the bracket fitting with NLGI 2 grease Make sure the shaft freely rotates by hand FIGURE 11 TAPERED ROLLER BEARINGS LIPSEALS FIGURE 12 BRACKET BEARING AND LIPSEAL ORIENTATION INSTALLATION OF BUSHINGS CARBON GRAPHITE If attempting to install the carbon graphite
16. hims or reassembling the pump PROCEDURE A After the rotor has been installed and the locknut has been positioned and retained insert a feeler gage of the proper end clearance into the port and between two rotor teeth see Figure 19 With the idler on the idler pin place the head into the pump casing With the capscrews tight the feeler gage should fit snugly otherwise shims should be added or reduced in thickness until the proper clearance is attained FIGURE 19 PROCEDURE A PROCEDURE B If the pump is in line and ports are not accessible remove the head and shims Put the head back on without shims and measure the gap as shown see Figure 20 After determining the gap between the head and casing select a combination of shims equal to the measured gap plus the desired end clearance Remove head install shims then install head Tighten the head capscrews and check the pump clearance by making sure the pump turns freely by hand lt _ FEELER GAUGE CASING FERS fo _ Gnu i iS T FIGURE 20 PROCEDURE B HEAD PRESSURE RELIEF VALVE INSTRUCTIONS DANGER Before opening any Viking pump liquid chamber pumping chamber reservoir relief valve adjusting cap fitting etc Be sure 1 That any pressure in chamber has been completely vented through suction or discharge lines or other appropriate openings or connections That the driving means motor turb
17. idler canister or adaptor plate bushings extreme care must be taken to prevent breaking Carbon graphite is a brittle material and easily cracked If cracked the bushing will quickly disintegrate Using a lubricant on the bushing and mating part will help facilitate installation ADAPTOR PLATE The groove in the ID of the bushing should line up with the groove in the adaptor plate Figure 14 on page 8 shows the proper position of the adaptor plate bushing after installation SECTION TSM 635 3 ISSUE C PAGE 7 OF 13 CANISTER Figure 13 shows the proper orientation of the canister bushing after installation Bushing should be flush with or up to 0 010 below bushing hub face Be certain canister is properly supported LUBE GROOVES CANISTER BUSHINGS Installing bushings may require a special fixture to ensure proper positioning Improper location may result in a pump with excessive slip pre mature wear or requiring a large number of shims The additional precautions listed below must be followed for installation 1 An arbor press must be used for the installation 2 Be certain the bushing is started straight 3 Do not stop the pressing operation until the bushing is in the proper position starting and stopping will result in a cracked bushing 4 After installation check the bushing for cracks
18. ine engine etc has been locked out or made non operational so that it cannot be started while work is being done on pump That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid Obtain a material safety data sheet MSDS for the liquid to be sure these precautions are understood Failure to follow above listed precautionary measures may result in serious injury or death DISASSEMBLY RELIEF VALVE Mark the valve and head before disassembly to insure proper reassembly 1 Remove the valve cap 2 Measure and record the length of extension of the adjusting screw Refer to A on Figure 21 3 Loosen the locknut and back out the adjusting screw until spring pressure is released 4 Remove the bonnet spring guide spring and poppet from the valve body Clean and inspect all parts for wear or damage and replace as necessary DDOI OM amp ie a f m i ee TO at oh A a ee wara SS ds Lue AU NET nE y Re oy VALVE LIST OF PARTS Adjusting Screw Valve Body Valve Spring Cap Gasket Bonnet Gasket Spring Guide FIGURE 21 VALVE Q AND QS SIZES EA a fione o fe Ea E Ea 07 ASSEMBLY RELIEF VALVE Reverse the procedures outlined under DISASSEMBLY RELIEF VALVE If the valve is removed for repairs be sure to replace in the original position The relief valve adjusting screw cap must a
19. ingers into the pumping chamber or its connection ports or into any part of the drive train if there is any possibility of the pump shafts being rotated i THE PUMP must be provided with pressure protection This may be provided through a relief valve mounted DO NOT exceed the pumps rated pressure speed and directly on the pump an in line pressure relief valve temperature or change the system duty parameters WARNING a torque limiting device or a rupture disk If pump from those the pump was originally supplied without rotation may be reversed during operation pressure WARNING confirming its suitability for the new service protection must be provided on both sides of pump Relief valve adjusting screw caps must always point towards suction side of the pump If pump rotation is reversed position of the relief valve must be changed Pressure relief valves cannot be used to control pump Pp PP BEFORE operating the pump be sure that e Itis clean and free from debris Pip PPP WARNING all valves in the suction and discharge pipelines flow or regulate discharge pressure For additional are fully opened information refer to Viking Pump s Technical Service e All piping connected to the pump is fully supported ngs TSM 000 and Engineering Service Bulletin and correctly aligned with the pump e Pump rotation is correct for the desired direction of flow THE PUMP must be installed in a matter that allows safe access for
20. is three 3 years from date of startup provided that in no event shall this warranty extend more than forty two 42 months from the date of shipment from Viking UNDER NO CIRCUMSTANCES SHALL VIKING BE LIABLE UNDER THIS WARRANTY OR OTHERWISE FOR SPECIAL INCIDENTAL INDIRECT CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY KIND INCLUDING BUT NOT LIMITED TO LOST OR UNREALIZED SALES REVENUES PROFITS INCOME COST SAVINGS OR BUSINESS LOST OR UNREALIZED CONTRACTS LOSS OF GOODWILL DAMAGE TO REPUTATION LOSS OF PROPERTY LOSS OF INFORMATION OR DATA LOSS OF PRODUCTION DOWNTIME OR INCREASED COSTS IN CONNECTION WITH ANY PRODUCT EVEN IF VIKING HAS BEEN ADVISED OR PLACED ON NOTICE OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ANY ESSENTIAL PURPOSE OF ANY PRODUCT THIS WARRANTY IS AND SHALL BE VIKING S SOLE AND EXCLUSIVE WARRANTY AND SHALL BE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ALL WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT ALL OF WHICH OTHER WARRANTIES ARE EXPRESSLY EXCLUDED See complete warranty at www vikingpump com All rights reserved 3 2013 Viking Pump Inc
21. itable lifting devices should be used when appropriate Lifting e The pump drive system means motor turbine eyes installed on the pump must be used only to lift engine etc has been locked out or otherwise WARNING the pump not the pump with drive and or base plate been made non operational so that it cannot be If the pump is mounted on a base plate the base plate started while work is being done on the pump must be used for all lifting purposes If slings are used for lifting they must be safely and securely attached For weight of the pump alone which does not include the drive and or base plate refer to the Viking Pump product catalog i gt e You know what material the pump has been handling have obtained a material safety data sheet MSDS for the material and understand and follow all precautions appropriate for the safe handling of the material DO NOT attempt to dismantle a pressure relief valve that has not had the spring pressure relieved or is BEFORE operating the pump be sure all drive guards mounted on a pump that is operating are in place AVOID contact with hot areas of the pump and or drive Certain operating conditions temperature control devices jackets heat tracing etc improper installation improper operation and improper maintenance can all cause high temperatures on the pump and or drive DO NOT operate pump if the suction or discharge piping is not connected DO NOT place f
22. long with the model number and serial number of the pump when ordering repair parts The unmounted pump or pump unit model number and serial number can be found on the nameplate secured to the pump This manual refers only with Series 8124A 8123A and 8127A universal magnetic drive pumps Refer to Figures 1 through 19 for general configuration and nomenclature used in this manual Pump specifications and recommendations are listed in Catalog Section 635 In the Viking model number system the basic size letters Q and QS are combined with the series number 8124A 8123A 8127A indicating basic pump external construction material see Figure 4 CORPORATION SECTION TSM 635 3 PAGE 1 OF 13 ISSUE C SIZES Q AND QS FIGURE 1 MODEL Q8124A 425 SPECIAL INFORMATION DANGER Before opening any Viking pump liquid cham ber pumping chamber reservoir relief valve adjusting cap fitting etc Be sure 1 That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections 2 That the driving means motor turbine engine etc has been locked out or made non operational so that it cannot be started while work is being done on pump 3 That you know what liquid the pump has been handling and the precautions necessary to safely handle the liquid Obtain a material safety data sheet MSDS for the liquid to be sure these precautions are u
23. lways point towards the suction side of the pump If the pump rotation is reversed remove the relief valve and turn end for end Refer to Figure 2 page 3 SECTION TSM 635 3 ISSUE C PAGE 11 OF 13 DANGER Before starting pump be sure all drive equip ment guards are in place Failure to properly mount guards may result in serious injury or death PRESSURE ADJUSTMENT If a new spring is installed or if the pressure setting of the pressure relief valve is to be changed from that which the factory has set the following instructions must be carefully followed 1 Carefully remove the valve cap which covers the adjusting screw 2 Loosen the locknut which locks the adjusting screw so pressure setting will not change during operation of pump 3 Install a pressure gauge in the discharge line for the actual adjustment operation 4 Turn the adjusting screw in to increase pressure and out to decrease pressure 5 With discharge line closed less than one minute at a time to prevent damage to pump at a point beyond the pressure gauge gauge will show the maximum pressure valve will allow while the pump is in operation IMPORTANT When ordering parts for the pressure relief valve always give the model number and serial number of the pump as it appears on nameplate and name of the part wanted When ordering springs be sure to give pressure setting desired TROUBLESHOOTING Some of the following may help pinpoint the
24. nderstood Failure to follow above listed precautionary measures may result in serious injury or death VIKING PUMP INC e A Unit of IDEX Corporation Cedar Falls IA 50613 USA SAFETY INFORMATION AND INSTRUCTIONS IMPROPER INSTALLATION OPERATION OR MAINTENANCE OF PUMP MAY CAUSE SERIOUS INJURY OR DEATH AND OR RESULT IN DAMAGE TO PUMP AND OR OTHER EQUIPMENT VIKING S WARRANTY DOES NOT COVER FAILURE DUE TO IMPROPER INSTALLATION OPERATION OR MAINTENANCE THIS INFORMATION MUST BE FULLY READ BEFORE BEGINNING INSTALLATION OPERATION OR MAINTENANCE OF PUMP AND MUST BE KEPT WITH PUMP PUMP MUST BE INSTALLED OPERATED AND MAINTAINED ONLY BY SUITABLY TRAINED AND QUALIFIED PERSONS THE FOLLOWING SAFETY INSTRUCTIONS MUST BE FOLLOWED AND ADHERED TO AT ALL TIMES ae Warning In addition to possible serious Symbol Paner E FAETO ONON Me naea eg injury or death failure to follow the instruction may result in serious injury DORNING indicated instruction may cause damage Legend g or death to pump and or other equipment BEFORE opening any liquid chamber pumping WARNING INSTALL pressure gauges sensors next to the chamber reservoir relief valve adjusting cap fitting pump suction and discharge connections to monitor etc be sure that pressures e Any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections USE extreme caution when lifting the pump Su
25. ngs and hard shafts can reduce the risk of rapid wear but the use of hard materials is not always the optimal solution In applications involving non abrasive non self lubricating liquids carbon graphite bushings are typically the preferred material Users should periodically inspect their pump for wear This is especially critical and should be carried out with greater frequency when carbon graphite bushings are used or the same pump has not previously been used for the same application including the same liquid speed pressure temperature and viscosity Users should promptly replace worn parts when they are discovered Users should continuously monitor pumps that are handling hazardous liquids This is especially critical for unmanned remote locations If a user does not have in house expertise in the area of monitoring it should contact a local engineering firm with monitoring experience VIKING PUMP INC A Unit of IDEX Corporation Cedar Falls IA 50613 USA SECTION TSM 635 3 PAGE 13 OF 13 SIZES Q AND QS VIKING PUMP CORPORATION WARRANTY Viking warrants all products manufactured by it to be free from defects in workmanship or material for a period of one 1 year from date of startup provided that in no event shall this warranty extend more than eighteen 18 months from the date of shipment from Viking The warranty period for Universal Seal series pumps ONLY Universal Seal models listed below
26. nt of shims should be used to provide the correct end clearance 0 010 for sizes Q and QS Inspect the head o ring replace if needed Refer to Step 1 if PTFE derivative encapsulated Lubricate the O ring and place on the head Ensure pipe plug is installed in the hole on the suction side of the head at the base of the idler pin Ensure the hole in the discharge side is unobstructed See Figure 17 on page 10 Coat the ID of the idler bushing with a suitable lubricant and place the idler on the idler pin in the head The head can now be assembled onto the pump Tilt the top of the pump head away from the pump slightly until the crescent enters the inside diameter of the rotor and rotate the idler until its teeth mesh with the rotor teeth Secure the head to the casing using eight nuts Check the end clearance Refer to Adjusting End Clearance on page 10 if needed Rotate the shaft by hand to make sure it turns freely The pump head and casing should have been marked before disassembly to insure proper reassembly If not be sure the idler pin which is offset in the pump head is placed between the port connections to allow for proper flow of liquid through the pump Inspect the magnet to make sure it has not picked up any foreign particles which could damage the pump Inspect the canister bushing replace if needed See Installation of Bushings on page 7 Lubricate the ID of the canister bushing Inspect the canister
27. o the shaft until the thrust washers are almost touching Apply anti seize compound to the threads of the split locknut and install with the raised face towards the inner magnet do not tighten completely Place two feeler gauges 0 003 one on each side of the shaft between the adaptor plate thrust washer and the inner magnet thrust washer Refer to Figure 16 This will establish the proper clearance for the thrust washers Tighten the locknut until the feeler gauges are snug but can still be removed Do NOT remove the feeler gauges at this time Tighten the setscrew in the locknut Check the feeler gauges If the gauges are too tight loosen the setscrew and locknut slightly and repeat tightening procedure Remove the feeler gauges Check to make sure the pump rotates freely by turning the inner magnet assembly 10 11 12 13 14 15 FEELER THRUST WASHER GAUGES aoe UN f J 2 2 J TH fie 2 Pi Ny Ne 2 NA 4 x 2 2 FIGURE 16 SETTING THRUST WASHER CLEARANCE If the old shims are not reusable or if any parts have been replaced operating clearances will need to be re established Refer to Adjusting End Clearance on page 10 Otherwise place the head shims on the head There is an offset hole in the head casing and shims These parts will only fit together one way There is a notch in the shims to indicate the offset hole The proper amou
28. o ring replace if needed Refer to Step 1 if PTFE encapsulated Lubricate and place the o ring into the groove in the adaptor plate Align the roll pin in the adaptor plate with the corresponding hole in the canister and place the canister onto the shaft Secure the canister using eight capscrews Be careful placing the setscrews as this is a strong magnet Do not place fingers between magnet and capscrews Secure the bracket to a base or other stable platform Inspect the canister to make sure it has not picked up SECTION TSM 635 3 ISSUE C PAGE 9 OF 13 any foreign particles which could damage the pump Place the canister sleeve onto the canister Support the pump with an overhead hoist and fixture while guiding the canister into the bracket opening Secure the pump to the bracket using four socket head capscrews This figure is for illustrative purposes only Actual pump construction and location of ports varies SUCTION PORT APLUG ee A SEQ Zee DISCHARGE PORT FIGURE 17 CIRCULATION OF LIQUID THROUGH UNIVERSAL MAG DRIVE PUMP DO NOT PLACE gt Ph FINGERS HERE
29. problem Pump does not pump e Pump has lost its prime from air leak or low level in tank e Suction lift is too high e Pump is rotating in the wrong direction e The strainer may be clogged e The bypass valve is open the pressure relief valve is set too low or the pressure relief valve poppet is stuck open e Improper end clearance e The pump is worn out e Are there any changes in liquid system or operation that would influence pump or coupling performance e g new liquid additional lines or process changes e Temperature changes either in the liquid or the environment e The magnetic coupling is decoupling Changes in application temperature pressure viscosity etc may require torque beyond coupling capabilities SECTION TSM 635 3 ISSUE C PAGE 12 OF 13 Pump starts then loses its prime e The supply tank is empty e Liquid is vaporizing in the suction line e An air leak or air pocket in the suction line Pump is noisy e The pump is being starved viscous liquid cannot get to pump fast enough Increase the suction pipe size reduce its length or slow down the pump e The pump is cavitating liquid vaporizing in suction line Increase suction pipe size or reduce its length e Check alignment e The magnetic coupling has decoupled Shut off and let cool then restart Pump is not delivering up to capacity e The pump is starving or cavitating increase suction pipe size or reduce length
30. re 9 dimensions for tool on page 3 Do not use tool to lift pump use eyebolt on bracket Use the jackscrews 14 in the bearing housing to separate the inner magnet 57 from the outer magnet 58 see sequence in Figure 8 To keep the bearing housing and bracket assemblies properly aligned and for additional safety it is recommended to use 2 lengths of all thread rod 12 threaded into opposite capscrew locations in the bracket and slide through the corresponding holes in the bearing housing Slide the outer magnet assembly out of the bracket 27 Visually inspect the outer magnets Inspect the magnet assembly for damage or wear replace if needed If further disassembly of the bearing housing is required see Disassembly Assembly of Bearing Housing page Place the canister sleeve 3 810 025 999 00 into the bracket over the canister 59 Remove the socket head capscrews 28 amp 28A securing the bracket to the pump Support the pump with an overhead hoist and fixture that is in line with the center of gravity of the pump Slide the pump out of the bracket Remove the canister sleeve Remove the socket head capscrews 54 from the canister If the canister was not drained in Step 1 it will contain liquid Use care when removing the canister from the pump by pulling it straight off Inspect the canister bushing 64 for wear If the canister bushing needs to be replaced see Installation of Bushings on page 7
31. renches pliers screwdrivers etc Most of the items can be obtained from an industrial supply house 1 Soft face hammer 2 Allen wrench set SAE 3 Torque wrench with a locknut socket 4 Two feeler gauge sets Arbor press Brass bar Canister Sleeve 3 810 025 999 00 Inner Magnet Lift 3 810 026 999 00 10 Bearing Housing Lift Figures 3 and 9 5 6 7 Hook style spanner wrench 8 9 9 90 NOTES 1 Material must conform to ASTM A36 2 Dimensions are in inches 3 Tolerances are 02 4 Thickness is 25 FIGURE 3 BEARING HOUSING LIFT SECTION TSM 635 3 ISSUE C PAGE 3 OF 13 Field 1 Field 2 Field 3 Field 4 Field 5 Q S 8 1 2 T T Size Shaft Sealing Field 6 Field 7 Field 8 Field 9 4 A 425 R T T Series Edition Drive Configurations SECTION TSM 635 3 ISSUE C Q 8 Sealless A Original __ Standard Pump QS Jacketing Design D i Direct BENE ia ioniackeici R Reducer Drive Bracket P Purchased Reducer Material of Construction 3 Steel Externals Torque Specifications 4 Cast Iron Q QS 425 Ft lb 7 Stainless Steel Q QS 900 Ft Ib FIGURE 4 MODEL NUMBER SYSTEM Adaptor Thrust Plate Washers Outer Inner Magnet Magnet Assembly Assembly ne Rotor and Shaft Canister and Bushing Tapered Roller Bearings Bearing Housing a Shaft Bushing Internal Relief Valve Casing Bracket FIGURE 5 CUTAWAY VIEW OF UNIVERSAL MAG DRIVE
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