Viking Pump Technical Service Manual 320.2 for General
Contents
1. rotate the idler until its teeth mesh with the rotor teeth Do not damage the head gaskets Note the correct position of the idler and crescent Refer to Figure 10 and Disassembly step 2 JK FZ HAR OH ie D3 fe erin Pee A Faji Hie l MOUNTING FLANGE NAN ihl aft HOOUL Ve iji FIGURE 11 PRESSURE RELIEF VALVE G GG H HJ amp HL SIZE iD ie se MPSS N VALVE LIST OF PARTS Valve Cap Valve Body Adjusting Screw Cap Valve Spring Lock Nut Poppet Spring Guide Cap Gasket Bonnet ROTARY MEMBER SEAL SEAT HEAD CRESCENT FIGURE 10 SECTIONAL DRAWING OF MODELS H475 HJ475 amp HL475 MECHANICAL SEAL PUMPS SECTION TSM 320 2 ISSUE E PAGE 8 OF 9 TECHNICAL SERVICE MANUAL GENERAL PURPOSE SPECIAL MOUNTED PUMPS DISASSEMBLY NOTE Mark valve and head to be sure they are reassembled in the same relative position 1 Remove valve cap 2 Measure and record the length of extension of the adjusting screw See A on Figure 11 3 Loosen the lock nut and back out adjusting screw until spring pressure is released 4 Remove bonnet spring guide spring and poppet from the valve body Clean and inspect all parts for wear or damage and replace as necessary ASSEMBLY Follow the procedure outlined under disassembly If valve is removed for repairs be sure to replace in the same position The valve cap should point towards the suction port PRESSURE ADJUSTMENT If the press2. be covered step by step Refer to pages 2 to 9 UNMOUNTED PUMP MODELS G75 GG75 H75 HJ75 HL75 G475 GG475 H475 HJ475 HL475 MOUNTED PUMP MODELS WITH NORMAL GPM SEAL RPM RPM SECTION TSM 320 2 1 OF 9 PAGE ISSUE E SERIES 75 AND 475 SIZES G HL INTERCHANGEABILITY These pumps are furnished with either a mechanical seal or lip seal All models of the mechanical seal pumps and lip seal pumps are dimensionally interchangeable on any NEMA C flange motor The mechanical seal is interchangeable with the lip seal in all pump sizes INSTALLATION The suction line should be air tight and at least as large as the pump suction port connections to prevent loss of prime or capacity It should also be equipped with a strainer and if pumping light liquids at a high suction lift a foot or check valve should be used Always avoid high spots and obstructions in the suction line as these may cause noise loss of capacity or air lock Since these are positive displacement pumps be sure there is no obstruction in the discharge line and all valves are in operating position before starting the pump Be sure the adjusting screws of the relief valve on the pump point towards the suction port Factory assembled pumps will have right hand port suction and left hand port discharge unless otherwise specified Port location is determined by looking at the mounting flange end of the pump The relief valve on the pump is excell
3. can be made as follows Remove the adjusting screw cap turn in the adjusting screw to increase the pressure and turn out to decrease the pressure If the pump is not producing the rated capacity adjustment of the pressure relief valve may be necessary Be sure the adjusting screw cap is re installed before the pump is started 4 CLEANING THE PUMP It is good practice to keep the pump as clean as possible This will facilitate inspection adjustment and repair work 5 STORAGE lf the pump is to be stored or not used for any appreciable length of time it should be drained and a light coat of lubricating and preservative oil should be applied to the internal parts SUGGESTED REPAIR TOOLS The following tools must be available to properly repair Series 75 and 475 pumps These tools are in addition to standard mechanics tools such as open end wrenches pliers screw drivers etc Most of the items can be obtained from an industrial supply house 1 Soft headed hammer Allen wrenches Some mechanical seals and set collars Mechanical seal installation sleeve Brass bar oS Arbor press JACKSCREW HOLE A LIP SEALS 2 MOTOR KEY HEAD 1 IDLER moror A SHAFT i P i ROTOR ae i CHECK END CLEARANCE SUCKBACK SCREW MOUNTING CAPSCREW FIGURE 3 CUTAWAY OF H HJ AND HL 75 LIP SEAL PUMPS SECTION TSM 320 2 ISSUE E PAGE 3 OF 9 DISASSEMBLY DANGER Before opening any Viking pump liq
4. teeth Do not damage the head gaskets Note correct position of the idler and crescent See Figure 5 and Disassembly step 2 Tighten the head capscrews and then check the end clearance 7 CHECK PUMP END CLEARANCE Measure the clearance between the back of the rotor and the mechanical surface in the bottom of the casing by inserting a feeler gauge through the port opening This is the end clearance the normal amount is 0 003 to 0 005 Add or remove gaskets until the figure is reached CAUTION Turn the rotor back and fourth as you exert enough force to push it through the lip seal and to the bottom of the casing Be careful not to fold under the lip of the inner seal 4 INSTALL THE IDLER Put the idler with the bushings on the idler pin MOUNTING FLANGE NORMAL AMOUNT USED INCH ONE SET OF GASKETS CONSISTS OF THE FOLLOWING G75 and GG75 010 015 2 005 Plastic Lip Seal Pumps 3 002 Plastic GASKET TABLE 1 PUMP MODELS 8 BOLT THE VALVE INTO THE CASING Place the valve gasket and valve or cover plate on the pump and fasten HEAD securely with the four capscrews CRESCENT ROTOR LIP SEALS 2 CAUTION Be sure the adjusting screw of the relief FIGURE 5 valve points toward the suction port SECTIONAL DRAWING OF MODELS G75 amp GG75 LIP SEAL PUMPS 9 ASSEMBLE THE PUMP ON THE MOTOR Install the PLACE HEAD GASKETS ON THE PUMP HEAD The proper amount of ga
5. touch the sealing faces of the me H475 HJ475 amp HL475 Mechanical 010 015 Seal Pumps 2 002 Plastic 2 006 Paper chanical seal with anything except fingers or a clean cloth GASKET TABLE 4 8 BOLT THE VALVE INTO THE CASING Place the valve gasket and valve or coverplate on the pump and fasten securely with the four capscrews 2 INSTALL THE ROTARY MEMBER OF SEAL Flush the rotor hub and the inside of the rotary member with light oil Slide the spring and rotary member over the rotary hub only far enough to hold the spring in position Do not 9 ASSEMBLE THE PUMP ON THE MOTOR Install the compress the spring at this time length key in the keyway in the motor shaft 3 INSTALL THE ROTOR IN THE CASING NOTE Key must be full length to avoid misalignment of the pump which could cause serious damage to the rea ee THE IDLER Put the idler with the bushing on pump Slide the pump on the motor shaft and fasten e idler pin securely with the four capscrews 5 PLACE THE HEAD GASKETS ON THE HEAD The proper amount of gaskets should be used to provide the necessary end clearance within the pump so ittuns SAFETY RELIEF VALVE freely with no appreciable end play Gasket Table 4 gives the normal amount of gaskets used INSTRUCTIONS 6 THE HEAD CAN NOW BE ASSEMBLED ON THE PUMP Tilt the head away from the pump slightly until the crescent enters the inside diameter of the rotor and 9 2 4 6 G 8
6. DELS G475 amp GG475 MECHANICAL SEAL PUMPS INSTALL THE SNAP RING Install the snap ring in the groove in the casing This will hold the seal at its proper working length BOLT THE VALVE TO THE CASING Place the valve gasket and valve or coverplate on the pump and fasten securely with the four capscrews CAUTION Be sure the adjusting screw of the relief valve points toward the suction port ASSEMBLE THE PUMP ON THE MOTOR Install the full length key in the key way of the motor shaft NOTE Key must be full length to avoid misalignment of the pump which could cause serious damage to the pump Slide the pump on the motor shaft and fasten securely with the four capscrews SECTION TSM 320 2 ISSUE E PAGE 7 OF 9 To Reassemble Model H475 HJ475 or HL475 7 CHECK THE PUMP END CLEARANCE Measure Mechanical Seal Pumps see Figure 10 the clearance between the back of the rotor and the machined surface in the bottom of the casing by inserting 1 INSTALL THE SEAL SEAT Lubricate the outside a feeler gauge through the port opening This is the end diameter of the seal seat and the inside of the seal seat clearance normal amount is 0 003 and 0 005 Add or and the inside of the seal housing bore with the light oil remove gaskets until the figure is reached not grease Start the seal seat in the casing and press into place NORMAL ONE SET OF GASKETS PUMP MODELS AMOUNT USED CONSISTS OF THE INCH FOLLOWING CAUTION Never
7. TECHNICAL SERVICE MANUAL GENERAL PURPOSE SPECIAL MOUNTED PUMPS CONTENTS Introduction 0 2 0 208 1 Interchangeabiliy 1 Special Information 1 Safety Information 2 Maintenance 0 00 0 000084 3 Disassembly 0 0002 ee eee 4 Assembly 2 ee 4 To Reassemble Model G75 amp GG75 4 To Reassemble Model H75 HJ75 amp HL75 6 To Reassemble Model G475 amp GG475 7 To Reassemble Model H475 HJ475 amp HL475 8 Safety Relief Valve Instructions 8 Pressure Adjustment 9 INTRODUCTION The illustrations used in this manual are for identification purposes only and should not be used for ordering parts Secure a parts list from the factory or a Viking representative Always give complete name of part part number and material with the model number and serial number of the pump when ordering repair parts This model number and serial number can be found on the nameplate attached to the pump casing This is important identification for ordering parts or replacement pump It is positive assurance you will receive the correct pump parts Your pump is composed of four major parts Only two of these are moving parts the rotor and idler An exploded parts drawing and list of parts is included to help you identify each part correctly However to disassemble and reassemble the pump you will
8. VE THE HEAD GASKETS If a new set is not available the original gaskets may be reused provided they are not damaged REMOVE THE IDLER FROM THE IDLER PIN If the idler pin is worn the head idler pin and idler bushing should all be replaced If the idler bushing is worn a new bushing is needed If the new bushing is carbon graphite special care must be taken when pressing it into the idler An arbor press should always be used be sure the bushing is started straight DO NOT STOP the pressing operation until the bushing is in its proper location Carbon graphite is brittle starting and stopping the pressing operation ISSUE E PAGE 4 OF 9 frequently results in a cracked bushing If cracked in the idler the bushing will quickly disintegrate REMOVE THE ROTOR FROM THE CASING The rotor of the two smaller pumps G amp GG sizes can be removed by pressing on the end of hollow drive end of the rotor It will be necessary on the models with mechanical seals G475 amp GG475 to use an arbor press and an arbor of approximately 1 375 diameter The seal will remain in the casing The rotor of the three larger size pumps H HJ HL sizes can also be removed by pushing on the hollow drive end of the rotor The spring and rotary member of the mechanical seal will come out with the rotor in these pumps FIGURE 4 VIEW OF FLANGE END OF G AND GG475 MECHANICAL SEAL PUMPS REMOVE THE MECHANICAL SEAL OR LIP SEALS See figure 4 R
9. able 2 CRESCENT gives the normal amount of gaskets used LIP SEALS 2 6 THE HEAD CAN NOW BE ASSEMBLED ON THE PUMP Tilt the top of the head away from the pump slightly until the crescent enters the inside diameter of FIGURE 8 the rotor and rotate the idler until its teeth mesh with the SECTIONAL DRAWING OF MODELS H75 HJ75 amp HL75 rotor teeth Do not damage the head gaskets Note the LIP SEAL PUMPS SECTION TSM 320 2 ISSUE E PAGE 6 OF 9 NORMAL AMOUNT USED INCH ONE SET OF GASKETS CONSISTS OF THE FOLLOWING 2 005 Plastic 3 002 Plastic PUMP MODELS G75 and GG75 Lip Seal Pumps eel GASKET TABLE 2 BOLT THE VALVE TO THE CASING Place the valve gasket and valve or coverplate on the pump and fasten securely with the four capscrews CAUTION Be sure the adjusting screw of the relief valve points toward the suction port ASSEMBLE THE PUMP ON THE MOTOR Install the full length key in the keyway of the motor shaft NOTE Key must be full length to avoid misalignment of the pump rotor which could cause serious damage to the pump Slide the pump on the motor shaft and fasten securely with the four capscrews To Reassemble Model G475 or GG475 Mechanical Seal Pumps see Figure 9 INSTALL THE ROTOR IN THE CASING INSTALL THE IDLER Put the idler with bushing on the idler pin PLACE THE HEAD GASKET ON THE HEAD The proper amount of gaskets should be used to provide the necessary end clearance wi
10. ck arrangement A small suckback screw self locking is inserted in a hole on the discharge side of the pump This can be seen through the port opening and behind the rotor refer to figure 3 The hole on the suction side must be left open to prevent damage to the lip seals Both holes are plugged in the mechanical seal pump Model G475 GG475 H475 HJ465 HL475 G475M GG475M H475M HJ475M and HL475M Since these pumps have only two moving parts and are all performance tested at the factory they seldom cause trouble If trouble does occur we always advise investigating all other possible causes before disassembling the pump Most troubles are caused by air leaks and obstruction in the suction line FIGURE 2 MOTOR MOUNTED PUMP SHOWING H HJ AND HL SIZE MAINTENANCE The Series 75 and 475 pumps are designed for long trouble free life under a wide variety of application conditions with minimum maintenance however the following should be considered 1 LUBRICATION External lubrication is not required for this series of pumps The liquid being pumped lubricates the internal bearings in the pump 2 END CLEARANCE ADJUSTMENT After long term operation it is sometimes possible to improve the performance of the pump without major repair by adjusting the end clearance Refer to ASSEMBLY page 4 for information regarding this procedure 3 PRESSURE RELIEF VALVE If your pump is equipped with a pressure relief valve adjustment
11. d information refer to Viking Pump s Technical Service e All piping connected to the pump is fully supported donne 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 routine maintenance and for inspection during operation to check for leakage and monitor WARNING pump operation SECTION TSM 320 2 ISSUE E PAGE 2 OF 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 2 This series of pumps may be equipped with an integral pressure relief valve Standard configuration is for clockwise rotation 3 If pump rotation is reversed during operation pressure protection must be provided on both sides of the pump 4 Relief valve adjusting screw cap must always point towards the suction side of the pump 5 Pressure relief valves should not be used to control pump flow or regulate discharge pressure For additional information on pressure relief valves Refer to Technical Service Manual TSM000 and Engineering Service Bulletin ESB 31 NOTE Lip seal pumps Models G75 GG75 H75 HJ75 HL75 G75M GG75M H75M HJ75M and HL75M are equipped with an internal suckba
12. emove the snap ring in the casing of the two smaller pumps G and GG sizes and the complete seal can be removed out of the large flanged end of the casing Remove the spring and rotary member from the rotor and the seal seat or lip seals from the pump end of the casing of the three larger size pumps H HJ HL ASSEMBLY Reassembly of these pumps is explained by one of the following sets of instructions Follow the instructions for the proper pump model Before starting to reassemble the pump clean all parts thoroughly and replace those which show signs of excessive wear or damage To Reassemble Model G75 or GG75 Lip Seal Pumps see Figure 5 1 INSTALL THE LIP SEALS The lip seals should be installed in the casing one at a time from the large flanged end The sealing lips must face away from each other NOTE Use an arbor press with an arbor of 2 188 diameter and press the lip seals in the casing as far as they will go See figures 7 8 9 and 10 for a cross section of your pump models LUBRICATE THE LIP SEALS Fill the area between the lips of the lip seals with grease INSTALL THE ROTOR Flush the rotor hub with light oil not grease and insert the rotor in the casing with the hub through the lip seals 6 THE HEAD CAN NOW BE ASSEMBLED ON THE PUMP Tilt the top of the 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
13. ent insurance against a clogged discharge line or closed valves in the discharge line FIGURE 1 UNMOUNTED PUMP SHOWING FRONT VIEW OF G AND GG SIZE SPECIAL INFORMATION ROTATION Viking pumps operate equally well in a clockwise or counterclockwise rotation Shaft rotation determines which port is suction and which is discharge Port in area where pumping elements gear teeth come out of mesh is suction port VIKING PUMP INC e A Unit of IDEX Corporation Cedar Falls IA 50613 USA CORPORATION 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 Danger E FAETO ONON Ne 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 cha
14. mber 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 Suitable 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
15. 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 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 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 P PP BEFORE operating the pump be sure that e tis 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 opene
16. skets should be used to provide necessary end clearance within the pump so it turns freely with no appreciable end play Gasket Table 1 gives the normal amount of gaskets used full length key in the keyway of the motor shaft NOTE Key must be full length to avoid misalignment of the pump rotor which could cause serious damage to the pump Slide the pump on the motor shaft and fasten securely with the four capscrews Q oxy FIGURE 6 EXPLODED VIEW SERIES 75 amp 475 PUMPS G AND GG SIZE ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART ca Key for Motor Shaft Full Length Gasket for Relief Valve or Cover Plate EA Snap Ring Mech Seal Pumps Only 8 Relief Valve 14 Idler Bushings 2 Mecnanical sear Comge o _ Capscows for Rete vane or Cover Pie 15 Gasket orHead Ta esa o ersa OOOO e ere Ts fems o Sn S venne Serew tech Seat Tip Sea 47 Hees Ce capscrove Pumponein O a Row O e ooa SECTION TSM 320 2 ISSUE E PAGE 5 OF 9 88888 FIGURE 7 EXPLODED VIEW SERIES 75 amp 475 PUMPS H HJ AND HL SIZE ITEM NAME OF PART ITEM ITEM NAME OF PART 4 Key for Motor Shaft Full Length 7 Relief Valve Idler Bushing 2 Capscrews Pump on Motor 8 Capscrews for Relief Valve or Cover Plate 14 Gasket for Head 15 Idler Pin NAME OF PART Ta feso o S o Mechanical Seal Compete Ta Pre ruse a tse A eS Ts machine screw wech Seal top Seay m roo or capac tories e casket torRetervane orcoverra
17. te fuer E To Reassemble Model H75 HJ75 or HL75 Lip Seal Pumps See Figure 8 correct position of the idler and crescent See Figure 8 and Disassembly Step 2 Tighten the head capscrews and then check the end clearance ee SEALS E A eed ou ee CHECK PUMP END CLEARANCE Measure the installed in the casing one at a time from the head end Teese cline ise ae E E Ge clearance between the back of the rotor and the gp y l machined surface in the bottom of the casing by inserting NOTE Use an arbor press of 2 188 diameter and press a feeler gauge through the port opening This is the end the lip seals in the casing as far as they will go clearance Normal amount is 0 003 to 0 005 Add or 2 LUBRICATE THE LIP SEALS Fill the area between the remove gaskets until the figure is reached lips and the lip seals with grease 3 INSTALL THE ROTOR Flush the rotor hub with light oil not grease and insert the rotor in the casing with the hub through the lip seals CAUTION Turn the rotor back and fourth as you exert enough force to push it through the lip seal and to the bottom of the casing Be careful not to fold under the lip of the inner seal 4 INSTALL THE IDLER Put the idler with the bushing on the idler pin 5 PLACE THE HEAD GASKETS ON THE PUMP HEAD The proper amount of gaskets should be used to provide the necessary end clearance within the pump so it turns freely with no appreciable end play Gasket T
18. thin the pump so it turns freely with no appreciable end play Gasket Table 3 gives the normal amount of gaskets used NORMAL AMOUNT USED INCH ONE SET OF GASKETS CONSISTS OF THE FOLLOWING PUMP MODELS GASKET TABLE 3 THE HEAD CAN NOW BE ASSEMBLED ON THE PUMP Tilt the top of the 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 Do not damage the head gaskets Note the correct position of the idler and crescent See Figure 9 and Disassembly Step 2 Tighten the head capscrews and then check the end clearance CHECK THE PUMP END CLEARANCE Measure the clearance between the back of the rotor and the machined surface in the bottom of the casing by inserting the feeler gauge through the port opening This is the end clearance Normal amount is 0 003 to 0 005 Add or remove gaskets until the figure is reached INSTALL THE MECHANICAL SEAL Slide the seal spring washer over the rotor hub as far as it will go Flush the rotor hub and seal housing bore with light oil not grease and assemble the spring rotary member and seat of the mechanical seal in position refer to Figure 9 CAUTION Never touch the sealing faces of the me chanical seal with anything except fingers or a clean cloth MOUNTING FLANGE SEAL SPRING WASHER ROTOR SNAP SEAL SEAT CRESCENT FIGURE 9 SECTIONAL DRAWING OF MO
19. ty period any products sold by Viking prove to be defective in workmanship or material under normal use and service and if such products are returned to Viking s factory at Cedar Falls lowa transportation charges prepaid and if the products are found by Viking to be defective in workmanship or material they will be replaced or repaired free of charge FOB Cedar Falls lowa Viking assumes no liability for consequential damages of any kind and the purchaser by acceptance of delivery assumes all liability for the consequences of the use or misuse of Viking products by the purchaser his employees or others Viking will assume no field expense for service or parts unless authorized by it in advance Equipment and accessories purchased by Viking from outside sources which are incorporated into any Viking product are warranted only to the extent of and by the original manufacturer s warranty or guarantee if any THIS IS VIKING S SOLE WARRANTY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED WHICH ARE HEREBY EXCLUDED INCLUDING IN PARTICULAR ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE No officer or employee of IDEX Corporation or Viking Pump Inc is authorized to alter this warranty CORPORATION All rights reserved 10 2008 Viking Pump Inc
20. uid chamber pumping chamber reservoir relief valve adjusting cap fitting etc Be sure 1 Failure That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings orconnections 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 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 liquid the to follow above listed precautionary measures may result in serious injury or death SECTION TSM 320 2 REMOVE THE PUMP FROM THE MOTOR Remove the four capscrews and use three as jackscrews in the threaded holes of the pump from the motor shaft NOTE If the pump has a valve it must be removed first to have room for the jackscrews REMOVE PUMP HEAD NOTE Mark the head and casing before disassembly to make sure they are reassembled properly The idler pin which is offset in the pump head should be properly positioned toward and equal distance between the port connections to allow for proper flow of liquid through the pump If it is necessary to disassemble the pump for inspection or repair first remove the head capscrews and remove head by tapping the head removing lugs lightly REMO
21. ure setting of the safety relief valve is to be changed from that which the factory has set the following instructions should be carefully followed 1 Remove the valve cap which covers the adjusting screw and loosen the lock nut that locks the adjusting screw so the pressure setting will not change during operation of the pump 2 Apressure gauge somewhere in the discharge line must be used for actual adjustment operation 3 The adjusting screw should be turned in for increasing the pressure or turned out for decreasing the pressure 4 With the discharge line closed at a point beyond the pressure gauge the gauge will show the maximum pressure the valve will allow while the pump is in operation IMPORTANT In ordering parts for the pressure relief valve always give model number and serial number of the pump as it appears on the nameplate and the name of the part wanted When ordering springs be sure to give the pressure settings desired CORPORATION VIKING PUMP INC A Unit of IDEX Corporation Cedar Falls IA 50613 USA SECTION TSM 320 2 PAGE 9 OF 9 SERIES 75 AND 475 ISSUE E SIZES G HL VIKING PUMP 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 If during said warran
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