Viking Pump Technical Service Manual 211 for Hevy Duty Stainless
Contents
1. Remove the head gasket If a new gasket is not available the original gasket may be re used provided it was not damaged when removing the pump head Remove idler from the idler pin If the idler pin is worn both the idler pin and idler bushing should be replaced On the F amp FH size the idler 8 bushing assembly must be replaced The idler pin may be removed from the head by pressing the pin out with a suitable press Remove the bearing locknut with a spanner wrench using a suitable wrench on the flat of the shaft to hold the shaft from turning A piece of brass rod or wood inserted in the port area and between the rotor teeth will also hold the shaft from turning Remove this piece of brass after locknut is removed 5 PACKING RETAINING WASHER PACKING GLAND NUT ZZ Se SPLIT PACKING GLAND HALVES O TARL PACKING GLAND TA P RETAINING WASHER INTERNAL RETAINING RING PACKING PIPE PLUG FIGURE 4 PACKING AREA CROSS SECTION SERIES 724 Remove bracket capscrews and disassemble bracket from casing REMAINING DISASSEMBLY PROCEDURE for the Series 724 packed pump Refer to Figure 4 Remove the packing gland nut packing gland retainer washer and split packing gland halves The internal retaining ring does not need to be removed at this point To remove the rotor and shaft push or tap with a soft hammer toward the head The packing and packing retainer wash2. any burrs DO NOT BREAK EDGE ON STEP SINCE FULL EDGE IS REQUIRED TO SUPPORT THRUST OF ROTOR SHAFT Coat the inside of the rotary member with light oil Place the rotary member on the shaft and slide over the bearing step THIS SHOULD PRACTICALLY FALL INTO PLACE NO FORCE SHOULD BE USED As shown in Figure 6 place the wire spanner wrench under the rotary member and place the seal seat above Push the seal seat against the rotary member until installation clips are loose and can be removed Remove the wire spanner wrench Remove the seal seat and install the PTFE gasket and assemble the seal seat in the casing Place the gasket in the packing gland and tighten gland to the casing Using an Allen wrench tighten the two small setscrews on the mechanical seal through the 1 8 pipe access hole Replace the 1 8 socket head pipe plug 4 Refer to Fig 7 Place the two conical spring washers with the I D s in contact the O D s will then be separated into the thrust bearing area of the bracket Next place the double row ball bearing and the end cap containing a lipseal into position Tighten the end cap by hand until resistance is felt then tighten half turn additional 5 Place a bearing spacer collar on the shaft with the bevel on the O D pointing toward the drive end Place the casing and shaft assembly in the bracket assembly and tighten with the two bracket capscrews Insert the second bearing spacer collar beveled edge first
3. is discharge Port in area where pumping elements gear teeth come out of mesh is suction port 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 a rupture disk or other device 2 There are relief valve options available on those pump models designed to accept a relief valve 3 If pump rotation is reversed during operation pressure protection must be provided on both sides of pump 4 Relief valve adjusting screw cap must always point towards suction side of pump If pump rotation is reversed remove pressure relief valve and turn end for end Refer to Figure 1 page 1 and Figures 2 and 3 page 3 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 MAINTENANCE The small Stainless Steel series 724 and 4724 pumps are designed for long trouble free service life under a wide variety of application conditions with a minimum of maintenance however the following should be considered 1 LUBRICATION Periodic external lubrication should be applied slowly with a hand gun at all lubrication fittings provided A good quality of general purpose grease is s
4. over the end of the shaft and against the ball bearing Place the bearing locknut on the shaft and tighten Use a suitable wrench on the flat of the shaft to keep it from turning IMPORTANT Adjust end clearance before operating pump END CLEARANCE ADJUSTMENT 1 The two conical spring washers produce a thrust load on the outer race of the double row ball bearing pushing it towards the head End clearance adjustments are made by rotating the end cap in a clockwise or counterclockwise motion To set the end clearance rotate the end cap using the wire spanner wrench in a clockwise direction while viewing from the shaft end until noticeable drag occurs while turning the shaft This produces zero end clearance To set the proper running end clearance rotate end cap in the opposite direction counterclockwise three notches which is equivalent to 003 end clearance Each notch represents 001 end clearance 2 Retighten setscrew locking the end cap in place INSTALLATION OF NEW PACKING Install three rings of packing with the joints staggered Loosen the packing gland nut by turning counterclockwise viewing from the shaft end Install the split packing gland halves and slide packing gland retainer washer into place Install internal retaining ring The packing is now ready for adjustment Since the stainless steel pump shaft has a tendency to become hot when packing is over tightened the packing must be carefully adjusted Durin
5. ION 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 211 A or death BEFORE opening any liquid chamber pumping chamber reservoir relief valve adjusting cap fitting 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 i
6. METTTET n narace EN CT EMT E ETT EN CCT CCT 9 Paeting cine TS foa CT IEEE E CT E ee IEA E ETT E TT EE E TAC E ETE CCT ETA ETT TC TN 0 Co feeca seon E CTN E SECTION TSM 211 ISSUE C PAGE 4 OF 7 DISASSEMBLY DANGER Before opening any Viking pump liquid chamber pumping chamber reservoir relief valve adjusting cap fitting etc Be sure 1 Thatany 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 Failure to follow above listed precautionary measures may result in serious injury or death CAUTION When the head is being removed from the pump See Figure 2 the idler usually stays on the idler pin but will fall off if the inside of the head is tilted downward A fall on a hard surface can damage the idler If the idler should fall check carefully and file or stone all nicked or rough places before reassembly Remove the head from the pump If the pump has a relief valve on head the valve may have to be removed before removing the head
7. TECHNICAL SERVICE MANUAL secto 18121 HEAVY DUTY STAINLESS STEEL PUMPS pace 10F7 SERIES 724 AND 4724 SIZES F G ISSUE Cc CONTENTS Introduction siis torens a a eS 1 Special Information 1 Maintenance seu aV edd sa Gee ee a 2 Disassembly oa 404 aa e San nee ROE Ra Boe Eos 4 ASSOMDIV ics Sees eae ol Gye Roe a ee ee a 5 Pressure Relief Valve Instructions 6 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 complete name of part part number and material with model number and serial number of the pump when ordering repair parts FIGURE 1 F FH G SIZE eer ees a Units are designated by the F4724 unmounted pump model 7 ae Ste 2 numbers followed by a letter Before opening any Viking pump liquid chamber pumping chamber reservoir relief valve adjusting cap fitting etc Be sure indicating drive style FH4724 D Direct Drive G4724 V V Belt Drive 1 That any pressure in the chamber has been completely vented through the suction or discharge lines or other appropriate openings or connections This maintenance bulletin deals exclusively with the bracket mounted Heavy Duty Stainless Steel Pumps This type That the driving means motor of pump may be equipped with either a Multi Ring stuffing turbine engine etc
8. atisfactory in the majority of cases however applications involving very high or low temperatures may require other types of lubricants Suggested frequency of lubrication is once every 500 hours of operation Do not over grease Consult the factory if you have specific lubrication questions 2 PACKING ADJUSTMENT New packed pumps Series 724 generally require some initial packing adjustment to control leakage as packing runs in Make initial packing adjustments carefully and do not over tighten the packing gland After initial adjustment occasional inspection will reveal the need for packing gland adjustment and or replacement of the packing See instructions in disassembly and reassembly regarding repacking the pump 3 END CLEARANCE ADJUSTMENT After term operation it is sometimes possible to improve the performance of the pump without major repair through adjustment of end clearance of the pump Refer to instructions under End Clearance page 6 for information regarding this procedure long 4 RELIEF VALVE lf your pump is equipped with a relief valve adjustment can be made as follows Remove the adjusting screw cap loosen the locknut and 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 relief valve may be necessary 5 CLEANING THE PUMP It is good practice to keep the pump as clean as possible This
9. 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 operation 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 SPECIAL INFORMATION ROTATION Viking pumps operate equally well in a clockwise or counterclockwise rotation Shaft rotation determines which port is suction and which
10. er can now be removed REMAINING DISASSEMBLY PROCEDURE for the Series 4724 mechanical seal pump Refer to Fig 5 Remove the 1 8 socketed head pipe plug on the casing and loosen the two Allen head setscrews on the mechanical seal ROTARY MEMBER PACKING GLAND NUT Y SEAL SEAT EN TG IXA GASKET PIPE PLUG PTFE GASKET FIGURE 5 MECHANICAL SEAL AREA CROSS SECTION SERIES 4724 SECTION TSM 211 ISSUE C PAGE 5 OF 7 Remove the packing gland nut and seal seat Inspect the gaskets and the seal seat for wear If the seal is to be re used remove the rotating part of the mechanical seal as follows Remove the head and idler Push the rotor and shaft out until the outer end of the seal is approximately flush with the first undercut on the shaft Then draw rotor shaft back into the casing and re install head and idler on the casing as shown in Figure 6 This has positioned the rotary member beyond the casing Now place the wire spanner wrench Provided in the instruction envelope under the rotary member as shown in Figure 6 Place the seal seat on the rotary member and push downward firmly In this position install two installation clips on rotary member Provided in instruction envelope 180 apart before removing the rotary member of the seal The installation clips remove the load within the seal and permits easier disassembly and re assembly of the seal Again remove the head and idler permittin
11. eriod 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 ifthe 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 WARRANTY All rights reserved 5 2007 Viking Pump Inc
12. g first few days tighten packing slowly allowing adequate leakage as packing runs in The packing when properly adjusted must have slight leakage to achieve proper operation and life After initial adjustments occasional adjustment will be required during operation PRESSURE RELIEF VALVE INSTRUCTIONS 1 Remove valve cap 2 Measure and record the length of extension of the adjusting screw See A Figure 9 3 Loosen the lock nut and back out adjusting screw until spring pressure is released 4 Remove bonnet spring guide spring and poppet from valve body Clean and inspect all parts for wear or damage and repair or replace as necessary LI Ves PANE it iF T Tati lt Y Cp E miji fe AED V AET c4 PAN FIGURE 8 VALVE G SIZE VALVE LIST OF PARTS Valve Cap Valve Body Adjusting Screw Lock Nut Valve Spring Poppet Cap Gasket Spring Guide Bonnet SECTION TSM 211 ISSUE C PAGE 7 OF 7 TECHNICAL SERVICE MANUAL HEAVY DUTY STAINLESS STEEL PUMPS ASSEMBLY Reverse the procedure outlined under disassembly If valve is removed for repairs be sure to replace in same position The valve cap should point towards the suction port DANGER Before starting pump be sure all drive equipment guards are in place Failure to properly mount guards may result in serious injury or death PRESSURE ADJUSTMENT Do not run with valve in full bypass for more than 30 seconds at a time If the pre
13. g the rotor and shaft to be removed 8 To remove the thrust bearing parts Figure 7 first loosen the setscrew which locks the end cap Next remove the end cap allowing ball bearing and conical spring washers to be removed The bearings should be washed thoroughly and examined If there is any evidence of wear or damage a new bearing should be used 9 The casing should be examined for wear particularly at the I D between the port openings 10 The casing bushing should be inspected and if it shows signs of wear should be replaced SET SCREWS SPAC SREI ROTARY MEMBER Fi CLIPS SPANNER WRENCH FIGURE 6 SECTION TSM 211 ISSUE C PAGE 6 OF 7 Examine the lipseals in the bracket and end cap These lipseals are important to this assembly and should be replaced if not in first class condition They are a grease seal for the ball bearing and also act as a shield to keep dirt or debris from entering the bearing When installing new lipseals be sure they are assembled with the lips facing as shown in Figure 7 END CAP LIPSEALS 2 LOCKNUT aail 16 ANAL A oe Y re oa i 2 fl NM Cad AR ie Mb BEARING NO ASA CONICAL ON SPACERS 2 URI SPRING J WASHERS 2 Z DOUBLE ROW BALL BEARING FIGURE 7 THRUST BEARING AREA CROSS SECTION If it is necessary to install a new carbon graphite bushing extreme care should be taken to prevent breaking as it is a brittle material and easi
14. has been locked box with packing called a Series 724 pump or a Roto Ring out or made non operational so that mechanical seal called a Series 4724 pump The figure it cannot be started while work is number and letter prefix which indicates the basic pump size being done on pump make up the pump model Both the packed and mechanical seal pumps are similar in overall appearance to the pump That you know what liquid the illustrated in Figure 1 pump has been handling and the The pump or unit model and serial number which can be precautions necessary to safely found on a nameplate attached to the pump or base are handle the liquid Obtain a material important means of identification when ordering repair parts safety data sheet MSDS for the or a replacement pump liquid to be sure these precautions An outstanding feature of these pumps is the integral thrust are understood bearing which is easily adjusted and holds the rotor in a fixed position This bearing is a double row angular contact ball Failure a to follow above listed bearing securely locked against a shoulder on the shaft by a precautionary measures may result in locknut Adjustment of the thrust bearing to properly position serious injury or death the rotor will be explained at the end of this article IBEX IDEX CORPORATION VIKING PUMP INC e A Unit of IDEX Corporation e Cedar Falls lA 50613 USA SAFETY INFORMATION AND INSTRUCTIONS IMPROPER INSTALLATION OPERAT
15. ly cracked If cracked this bushing will quickly disintegrate An arbor press should always be used in installing carbon graphite bushings Be sure the bushing is started straight DO NOT STOP the pressing operation until the bushing is in proper position Starting and stopping this operation may result in cracking ASSEMBLY 1 Install the rotor and shaft Be sure shaft is free from burrs and foreign particles that might damage the bracket bushing 2 Place a head gasket on the head With the idler on the idler pin put the head and idler on the pump and tighten the capscrews evenly 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 This will help in putting the head on the pump 3 REASSEMBLY OF SERIES 724 Refer to Fig 4 With the pump in a vertical position install the packing retainer washer in the bottom of the stuffing box and install three rings of packing It is a good practice to install a new set of packing Install three rings of packing with the joints staggered Install the two split packing gland halves Place the packing gland retainer washer on the split packing gland halves and assemble the packing gland nut to the casing Skip to step number 4 REASSEMBLY OF SERIES 4724 Refer to Fig 5 Assemble mechanical seal with installing clips in place Check shaft step to be sure it doesn t have
16. nto 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 C PAGE 2 OF 7 Danger Failure to follow the indicated instruction 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
17. ssure setting of the valve is to be changed from that which the factory has set the following instructions should be carefully followed Remove the valve cap which covers the adjusting screw and loosen the lock nut which locks the adjusting screw so pressure setting will not change during operation of pump A pressure gauge in the discharge line must be near a port and must be used for actual adjustment operation The adjusting screw should be turned in for increasing the pressure or turned out for decreasing the pressure With the discharge line closed at a point beyond the pressure gauge the gauge will show the maximum pressure the relief valve will allow while pump is in operation IMPORTANT In ordering parts for relief valve on head always be sure to give Model and Serial Number of pump as it appears on name plate and the name of the part wanted When ordering springs be sure to give the pressure setting desired IBEX IDEX CORPORATION VIKING PUMP INC e A Unit of IDEX Corporation e Cedar Falls IA 50613 USA SECTION TSM 211 PAGE 8 OF 7 SERIES 724 AND 4724 ISSUE c SIZES F G IBEX IDEX CORPORATION VIKING PUMP 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 warranty p
18. will facilitate inspection adjustment and repair work and help prevent omission of lubrication to fittings covered or hidden with dirt 6 STORAGE If 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 Lubricate all fittings Rotate by hand every 30 days SUGGESTED REPAIR TOOLS The following tools must be available to properly repair Series 724 and 4724 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 2 Allen wrenches some mechanical seals and set collars 3 Packing hooks flexible Small for 0 25 inch and 0 31 inch cross section packing Large for 0 38 inch and up cross section packing Mechanical seal installation sleeve Bearing locknut spanner wrench 2 810 043 375 Spanner wrench adjustable pin type for use on double end caps 2 810 008 375 Brass bar Arbor press SECTION TSM 211 ISSUE C PAGE 3 OF 7 SEALED PUMPS SEAL SEAT CASING BUSHING SEAL ROTARY MEMBER END CAP BALL BEARING CONICAL SPRING WASHERS LOCKNUT IDLER PIN SHAFT SETSCREW SPACER 2 HEAD BRACKET FIGURE 2 SECTIONAL VIEW 4724 SERIES FIGURE 3 EXPLODED VIEW SERIES 724 AND 4724 PUMP SECTIONAL VIEW CT E CET ET CTE E
Download Pdf Manuals
Related Search