TECHNICAL SERVICE MANUAL
Contents
1. 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 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 or reduce pump speed e The strainer is partially clogged An air leak somewhere in suction line 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 SECTION TSM 635 2 ISSUE E PAGE 11 OF 12 CORPORATION TECHNICAL SERVICE MANUAL UNIVERSAL MAG DRIVE PUMPS SECTION TSM 635 2 PAGE 12 OF 12 SERIES 8124A 8123A 8127A issue E SIZE2. 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 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 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 14 Do not engage the magnets in any other fashion 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 1 2 x 5 capscrew is properly used Make sure fingers are not on the front of the pump See Sequence in Figure 13 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 1 Ifthe adaptor plate O ring needs to be replaced apply a lubricant to the O ring and place it onto the casing side of the plate adaptor If the O ring is PTFE d
3. 2 Allen wrench set SAE 3 Torque wrench with a locknut socket E 4 Two feeler gauge sets SUCTION 5 Arbor press 6 Brass bar 7 Hook style spanner wrench A RELIEF VALVE ADJUSTING SCREW CAP FIGURE 2 RELIEF VALVE POSITION Field 1 Field 2 Field 3 Field 4 Field 5 Field 6 Field 7 Field 8 Field 9 Size Shaft Sealing 2 Bearing Series Edition Drive Configurations K 8 Sealless Shaft Support A Original Standard Pump KK i Design D Direct Drive L Jacketing R Reducer Drive LQ 1 Non Jacketed P Purchased Reducer LL Bracket LS Material of Construction 3 Steel Externals Torque Specifications 4 Cast Iron K KK 90 Ft lb FIGURE 3 7 Stainless Steel K KK 180 Ft lb MODEL NUMBER SYSTEM L LS 325 Ft lb SECTION TSM 635 2 ISSUE E PAGE 3 OF 12 Adaptor Magnet Thrust Assembly Inner Washers Magnet Assembly Rotor and Shaft Canister and Bushing J Assembly J we 7 Tapered Roller Bearings P Y LNN _ Internal Relief Valve Shaft Bushing Bracket FIGURE 4 CUTAWAY VIEW OF UNIVERSAL MAG DRIVE PUMP NAME OF PART NAME OF PART 13 formons erneer Rev so parn 68 femme 25 acne Bunn 4 pesama ieren eo forwr ES Cas inoran as _ Rtervve canon erea e annetornews Cas fesor J 8 feaserns tr rerervave eroaan 66 foonserorns 36 froorara sranane a7 pereas 68 fo prana O sr oreren FIGURE 5 EXPLODED VIEW UNIVERSAL MAG DRIVE PUMP CANISTER THROUGH RELIEF VALVE SECTI
4. etc be sure that e Any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections The pump drive system means motor turbine engine etc has been locked out or otherwise been made non operational so that it cannot be started while work is being done on the pump 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 BEFORE operating the pump be sure all drive guards are in place DO NOT operate pump if the suction or discharge piping is not connected DO NOT place fingers 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 DO NOT exceed the pumps rated pressure speed and temperature or change the system duty parameters from those the pump was originally supplied without confirming its suitability for the new service BEFORE operating the pump be sure that e Itis clean and free from debris e all valves in the suction and discharge pipelines are fully opened All piping connected to the pump is fully supported and correctly aligned with the pump Pump rotation is correct for the desired direction of flow ISSUE E PAGE 2 OF 12 Danger Failure to follow the indicated instru
5. 14 This figure is for illustrative purposes only Actual pump construction and location of ports varies DISCHARGE PORT A EA LA ao Zz __t Z g m 1 z A SUCTION PORT FIGURE 14 CIRCULATION OF LIQUID THROUGH UNIVERSAL MAG DRIVE PUMP ADJUSTING END CLEARANCE Standard end clearance of 0 008 is used on sizes K LS 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 shims 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 15 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 15 PROCEDURE A SECTION TSM 635 2 ISSUE E PAGE 9 OF 12 PROCEDURE B If the pump is in line and ports are not accessible remove the head and
6. 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 SIZES K KK L LQ LL and LS CONTENTS InthOdUCHON ne vce ee ee ek A le a a i 1 Special Information 0 1 Safety Information 200 4 2 Maintenance o ra 2 ee eee eS 3 Model Number System 0 3 Parts Identification Drawings 4 Disassembly of Pump 0 4 5 Disassembly Assembly of Bracket Bearings 6 Installation of Bushings 7 Assembly of Pump 0 000000 7 Pump Rotation 020 00 9 Adjusting End Clearance 9 Pressure Relief Valve Instructions 10 Troubleshooting 00004 11 Warranty 2240 55 ake be EAS Se ee WARNING Persons with surgical implants of a metallic or electronic nature should avoid working on pump especially the inner 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 n
7. ON TSM 635 2 ISSUE E PAGE 4 OF 12 dojo 0 000000 LI ITEM o pe O s aeo a p 2 Lockwasher 6 Tapered Roller Bearing 2 Reqa 28 Capscrews for Mounting Bracket 4 Req d Co eee o Geesa 68 foeren 4 oreemosme oe FIGURE 6 EXPLODED VIEW UNIVERSAL MAG DRIVE PUMP BRACKET AND OUTER MAGNET ASSEMBLY PUMP DISASSEMBLY DO NOT PLACE FINGERS HERE CAPSCREW WARNING Refer to DANGER amp CAUTION listed on page 2 before proceeding 1 Drain the liquid being pumped by removing the two drain plugs if present Both are located in the bottom of the casing Once the liquid has drained replace the plugs Refer to Figures 5 and 6 for the names of parts Mark the head 40 and casing 31 before disassembly DO NOT PLACE to insure proper reassembly FINGERS HERE 4 To inspect the head and pin assembly 39 and 40 and idler and bushing assembly 37 and 38 remove the head capscrews 43 5 Remove the head from the pump If the casing was not drained in Step 1 be careful of the liquid draining out between the head and casing Do not allow the idler to fall from the idler pin Tilt the top of the pump head back during removal to prevent this Avoid damaging the head shim set 63 since all shims are required to maintain end clearance DO NOT PLACE FINGERS HERE 6 Remove the idler and bushing assembly Inspect the idler bushing for wear If the i
8. OSE 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
9. RE 12 SETTING THRUST WASHER CLEARANCE Inspect the canister bushing replace if needed See Installation of Bushings on page 7 Lubricate the ID of the canister bushing Inspect the canister o ring replace if needed Refer to Step 1 if PTFE derivative 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 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 9 Otherwise place the head shims on the head The proper amount of shims should be used to provide the correct end clearance 0 008 for sizes K LS 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 Insure pipe plug is installed in the hole in the head at the base of the idler pin that aligns with the vertical groove in the adaptor plate Plug will be slightly offset to CW side of groove Insure the hole in the opposite side is unobstructed See Figure 14 on page 9 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 un
10. S K KK L LQ LL and LS 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 m 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 bushings 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 Th
11. ange 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 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 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 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 Pump starts then loses its prime e
12. bearing cup 6 out of the bracket and the outer bearing cup out of the end cap The bearings will need to be replaced if the cups are removed ASSEMBLY 1 Ifthe bearing cups were removed press the cup of the outer bearing into the end cap Press the cup of the inner bearing into the bracket 2 Press the inner lipseal into the bracket and the outer lipseal into the end cap and then lubricate the lipseals see Figure 9 for lipseal and bearing orientation TAPERED ROLLER BEARINGS y g L q LIPSEALS FIGURE 9 BRACKET BEARING AND LIPSEAL ORIENTATION 3 Screw the end cap into the bracket 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 bracket 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 120 140 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 e
13. ction may result in serious injury Warning In addition to possible serious injury or death failure to follow the indicated instruction may cause damage to pump and or other equipment INSTALL pressure gauges sensors next to the pump suction and discharge connections to monitor pressures USE extreme caution when lifting the pump Suitable lifting devices should be used when appropriate Lifting eyes installed on the pump must be used only to lift the pump not the pump with drive and or base plate If the pump is mounted on a base plate the base plate 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 DO NOT attempt to dismantle a pressure relief valve that has not had the spring pressure relieved or is mounted on a pump that is operating 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 THE PUMP must be provided with pressure protection This may be provided through a relief valve mounted directly on the pump an in line pressure relief valve a torque limiting device or a rupture disk If pump rotation may be reversed during o
14. dler bushing needs to be replaced see Installation of Bushings on page i ETT E 7 If further disassembly is required proceed to the T next step A 7 Remove the four socket head capscrews 28 securing f io of the pump to the bracket Support the pump with an 1f overhead hoist if possible ALL THREAD ROD 8 Use the jackscrews 14 in the bracket to separate the inner magnet 57 from the outer magnet 58 see sequence in Figure 7 To keep the pump and bracket FIGURE 7 assemblies properly aligned and for additional safety it PUMP SEPARATION SEQUENCE is recommended to use 2 lengths of all thread rod 6 8 threaded into diagonal capscrew locations in the adaptor plate and slide through the corresponding holes in the bracket SECTION TSM 635 2 ISSUE E PAGE 5 OF 12 9 Visually inspect the outer magnets from the end of the bracket If removal is necessary separate the bracket from the motor Remove the locknut 1 lockwasher 2 and outer bearing spacer collar 4 from the shaft Slide the outer magnet assembly out of the bracket Inspect the magnet assembly for damage or wear replace if needed If further disassembly of the bracket is required see Disassembly Assembly of Bracket Bearings page 6 10 Remove the socket head capscrews 54 from the canister 59 If the canist
15. er 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 11 Do not remove the O ring from the plate adaptor 67 canister unless it is bad especially if it is PTFE derivative encapsulated If a new O ring is required See Pump Assembly on page 7 12 Insert a brass bar into the rotor 36 through a port between two rotor teeth and remove the split locknut 66 see Figure 8 Slide the inner magnet assembly off of the shaft Make sure the outer thrust washer 60 does not come off with the inner magnet assembly If the thrust washer hits the shaft key 62 it may crack or break Do not forget this is a very strong magnet Inspect the magnet assembly for damage or wear replace if needed If further disassembly is required proceed to the next step SETSCREW INNER MAGNET ASSEMBLY LOCKNUT FIGURE 8 INNER MAGNET AND LOCKNUT ASSEMBLY 13 Remove the shaft key from the rotor shaft Remove the outer thrust washer The rotor and shaft 36 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 Remove the inner thrust washer from behind the rotor Check the thrust washers for cracks or wear replace i
16. erivative 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 Port B see Figure 11 on page 8 The adaptor plate in the K amp KK models have a single groove the L LS models have a groove and two machined relief pockets Carefully slide the plate SECTION TSM 635 2 ISSUE E PAGE 7 OF 12 PORTA SECTION TSM adaptor 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 PORT B ADAPTOR PLATE GROOVE VIEWED FROM HEAD END D PORT B ADAPTOR PLATE GROOVE FIGURE 11 ADAPTOR PLATE CASING POSITIONING L SIZE SHOWN 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 Place one thrust washer onto the shaft s
17. f necessary 14 Inspect the adaptor plate bushing If the bushing needs to be replaced see Installation of Bushings page 7 Remove the socket head capscrews 13 from the adaptor plate Slide the adaptor plate out of the casing 15 Do not remove the O ring from the plate adaptor casing unless it is bad especially if it is PTFE derivative encapsulated If a new O ring is required See Pump Assembly on page 7 SECTION TSM 635 2 ISSUE E PAGE 6 OF 12 16 Inspect the 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 BRACKET BEARINGS DISASSEMBLY The bracket bearing assembly features two tapered roller bearings two lipseals and one spacer If further disassembly of this unit is required proceed as follows 1 Loosen the setscrews holding the end cap 3 in the bracket Screw the end cap out of the bracket 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 4 lf the bearings are worn it is recommended to replace the entire bearing Remove the inner bearing spacer collar 8 Press the inner
18. is 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 e A Unit of IDEX Corporation Cedar Falls IA 50613 USA 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 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 PURP
19. mbly 1 Remove the valve cap 2 Measure and record the length of extension of the adjusting screw Refer to A on Figure 17 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 Pi pevec fe femes Pa adusting Screw r Nate Spring a fona fe fo a Song Gude o foaocee sfm f S FIGURE 17 VALVE K KK L LQ LL AND LS SIZES 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 always 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 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 ch
20. nd 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 INSTALLATION OF BUSHINGS CARBON GRAPHITE The canister bushing requires a special fixture for proper assembly so the bushing is only sold as part of the canister assembly If attempting to install the carbon graphite idler 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 w LA CASING BUSHING Ze INCH MM _ 245 6 223 242 6 147 FIGURE 10 ADAPTOR PLATE BUSHING POSITION The groove in the ID of the bushing should line up with the groove in the adaptor plate Figure 10 shows the proper position of the adaptor plate bushing after installation This 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
21. o that the blind hole in the thrust washer will line up with the drive pin on the back of the rotor Slide the shaft into the adaptor plate bushing as far as it will go Make sure that the thrust washer remains seated on the drive pin and flat against the rotor Slide the second thrust washer onto the shaft drive hole facing out Then install the key into the shaft Clean the face on the inner magnet that faces the casing Slide the inner magnet onto the shaft and engage the pin of the magnet into the hole of the thrust washer Install the split locknut with the raised face out do not tighten completely Place two feeler gauges 0 002 one on each side between the adaptor plate bushing and the inner magnet thrust washer Refer to Figure 12 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 Inspect the magnet to make sure it has not picked up any foreign particles which could damage the pump 635 2 ISSUE E PAGE 8 OF 12 10 11 12 13 14 lt FEELER GAUGES THRUST WASHER FIGU
22. peration pressure 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 flow or regulate discharge pressure For additional information refer to Viking Pump s Technical Service Manual TSM 000 and Engineering Service Bulletin ESB 31 THE PUMP must be installed in a matter that allows safe access for routine maintenance and for inspection during operation to check for leakage and monitor pump operation 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 9 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 performance or damaging items such as the following Pacemaker
23. s Metal Implants Watches Computers amp disks Credit Cards DISCHARGE R 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 present or 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 wrenches pliers screwdrivers etc Most of the items can be obtained from an industrial supply house 1 Soft face hammer
24. shims Put the head back on without shims and measure the gap as shown see Figure 16 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 HEAD 4 FIGURE 16 A PROCEDURE B 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 turbine 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 SECTION TSM 635 2 ISSUE E PAGE 10 OF 12 DISASSEMBLY RELIEF VALVE Mark the valve and head before disassembly to insure proper reasse
25. through the corresponding holes in the bracket 16 Inspect the canister to make sure it has not picked up any foreign particles which could damage the pump Support the pump with a overhead hoist if possible while guiding the canister into the bracket opening Back the capscrew off being careful that the end of the capscrew is positioned in the counterbore hole of the adaptor plate Secure the pump to the bracket with four 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 ALL THREAD ROD DO NOT PLACE FINGERS HERE DO NOT PLACE FINGERS HERE CAPSCREW FIGURE 13 PUMP ASSEMBLY SEQUENCE PUMP ROTATION The pump is designed to operate in either direction Process fluid is generally fed to the inner thrust washer and bushing interface and then through a groove in the bushing to the outer thrust washer Then the fluid is pulled into the canister bushing and back through the hollow shaft and idler pin to the suction side of the pump When the pump is operated in the opposite direction the fluid flow is reversed see Figure
26. til 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 six to eight capscrews Check the end clearance Refer to Adjusting End Clearance on page 9 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 bracket bearings and lipseals replace if needed Refer to Disassembly Assembly of Bracket Bearings page 6 Inspect the outer magnet for any steel objects which may be attached Remove any foreign material Secure the bracket to a base or other stable platform Rotate the outer magnet shaft by hand to make sure there is no interference If rubbing occurs visually inspect for debris Consult the factory if rubbing between the outer magnet and bracket persists 15 Insert two fully threaded 72 X 5 socket head capscrews into the bracket until they are fully extended in front of the bracket to control assembling the pump see Figure 13 To keep the pump and bracket assemblies properly aligned and for additional safety it is recommended to use 2 lengths of all thread rod 6 8 threaded into diagonal capscrew locations in the adaptor plate and slide
27. tions are understood Failure to follow above listed precautionary measures may result in serious injury or death ROTATION Viking Mag Drive pumps are designed to run in either direction See Pump Rotation page 9 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 VIKING PUMP INC 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 Symbol Legend SECTION TSM 635 2 A or death BEFORE opening any liquid chamber pumping chamber reservoir relief valve adjusting cap fitting
28. umber and material along 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 17 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 K KK L etc are combined with the series number 8124A 8123A 8127A indicating basic pump external construction material see Figure 3 CORPORATION SECTION TSM 635 2 PAGE ISSUE E 1 OF 12 FIGURE 1 MODEL LS8124A 325 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 precau
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