TECHNICAL SERVICE MANUAL
Contents
1. 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 Mark valve and head before disassembly to insure proper reassembly 1 Remove valve cap 2 Measure and record length of extension of adjusting screw Refer to A on Figures 17 18 and 19 3 Loosen locknut 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 replace as necessary ASSEMBLY Reverse procedures outlined under Disassembly If valve is removed for repairs be sure to replace in same position Relief valve adjusting screw cap must always point towards suction side of pump If pump rotation is reversed remove relief valve and turn end for end Refer to Figures 1 2 3 and 4 page 1 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 If a new spring is installed or if pressure setting of pressure relief valve is to be changed from that which the factory has set the following instructions must be carefully followed 1 Carefully remove valve cap which covers adjusting screw Loosen locknut which locks adjust2. cracked bushing 4 Check bushing for cracks after installation Carbon graphite bushings with extra interference fits are frequently furnished for high temperature operation These bushings must be installed by a shrink fit 1 Heat bracket or idler to 750 F 2 Install cool bushings with a press 3 If facilities are not available to reach 750 F temperature it is possible to install with 450 F temperature however the lower the temperature the greater the possibility of cracking bushing Consult factory with specific questions on high temperature applications Refer to Engineering Service Bulletin ESB 3 PRESSURE RELIEF VALVE INSTRUCTIONS A 10 ile FIGURE 17 Size AK and AL Sane FIGURE 18 Size K KK L LQ and LL VALVE LIST OF PARTS Valve Cap Valve Body Adjusting Screw Valve Spring Lock Nut 8 Poppet Spring Guide 9 Cap Gasket Bonnet 10 Bonnet DISASSEMBLY 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 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
3. device or a rupture disk 2 There are relief valve options available on those pump models designed to accept a relief valve Options may include a return to tank relief valve and a jacketed relief valve Pumps equipped with a jacketed head plate are generally not available with 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 Figures 1 2 3 and 4 page 1 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 TSM000 and Engineering Service Bulletin ESB 31 MAINTENANCE Series 32 and 432 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 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 satisfactory 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 ove
4. for general configuration and nomenclature used in this manual Pump specifications and recommendations are listed in Catalog Section 310 Series 32 and 432 General Purpose Pumps SPECIAL INFORMATION 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 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 UNDERSTOOD FAILURE TO FOLLOW ABOVE LISTED PRECAUTIONARY MEASURES MAY RESULT IN SERIOUS INJURY OR DEATH 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 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
5. seat each packing ring NOTE If the pump has a lantern ring it must be located below the grease fitting The grease fitting may be removed to facilitate positioning of the lantern ring 8 Install packing gland capscrews and nuts 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 NOTE Pump may be equipped with a 2 piece split packing gland which allows installation of packing gland w ith rotor in place See Figure 14 SPRING WIRE RETAINER CLIP 2 REQUIRED E P f Bi ES wd m Fa i N i A zy oasorew SPLIT PACKING GLAND ene er 2 REQUIRED fl he ot i FIGURE 14 MECHANICAL SEAL OPTION Install the mechanical seal Place the set collar on the shaft and tighten setscrew See Figure 15 for set collar location The seal used in this pump is simple to install and good performance will result if care is taken during installation The principle of the mechanical seal is contact between the rotary and stationary members These parts are lapped to a high finish and their seating effectiveness depends on complete contact 1 Never touch sealing faces with anything except clean hands or clean cloth Minute particles can scratch the seal faces and cause leakage 2 The spring washer and spring must be put on the shaft first and in that order See Figure 15 3 Spread a film of lubri
6. Bushing for Rotor Bearing Sleeve 12 Pipe Flange Gasket 19 Head Gasket 26 Capscrew for Valve Packing Gland Nut Nut for Flanges 21 Head and Idler Pin a O 28 G9 Fi a r 3 6668 mh F zel Os Fi T i be amy me 29 CD QI q 31 FIGURE 12 EXPLODED VIEW MODEL 032 M32 AND N32 PUMP TEM NAME OF PART TEM NAME OF PART TEM NAME OF PART TEM NAME OF PART 1 Packing Gland Nut Rotor Bearing Sleeve and Bushing Pipe Flange Gasket Head and Idler Pin Packing Gland Stud Nut for Rotor Bearing Sleeve Rotor Bearing Sleeve Washer Stud for Head Grease Fitting Stud for Rotor Bearing Sleeve Rotor Thrust Washer Nut for Head e fanem Ring 14 Pipe Pug 22 Idler Bushing Packing Retainer Washer 8 Bushing for Rotor Bearing Sleeve 16 Nut for Flanges 24 lIdler Pin DISASSEMBLY 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 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 T
7. D HL432 PUMP a o me e e Capscrew for End Cap 6 Casing Bushing Head Gasket Relief Valve End Cap 7 Casing and Bushing Idler Pin 17 Capscrew for Valve Gasket for End Cap 8 Rotor and Shaft Head and Idler Pin ff Mechanical Seal 9 Idler and Bushing Capscrew for Head LC ot ST Set Collar with Setscrew Idler Bushing Relief Valve Gasket a en T T 4 8 7 fis a 195 E i a P i TITT Emy z M000A Age e E EJ 6 ig l em m S jz FIGURE 9 EXPLODED VIEW MODEL J32 K32 KK32 AND L32 PUMP m eo w ee r e r e 1 Two Piece Packing Gland 6 Packing Gland Sud 11 ider Bushing 16 Poe Pug 3 Packing Retainer Washer 8 Grease Fiting 13 iderPn 18 Relie Vave a Casing Bushing 9 PotorandShat 14 Head and iderPn 19 Capscrew for Vave s Packing Gland N 10 erand Bushing 18 CapsorewforHead O SS ii i om a J af NAME OF PART ITEM NAME OF PART Two Piece Packing Gland Grease Fitting Relief Valve Gasket 2 Packing 8 Casing and Bushing 20 Pipe Plug Head Gasket Capscrew for Valve 3 Packing Retainer Washer 9 Pipe Flange Gasket der Pin Heada ern O OO 6 Packing Gland Stud 12 fFotorand Shat 18 Capscrew for Head E PT 1 2 a A 3 4 E FIGURE 11 EXPLODED VIEW MODEL LL32 PUMP NAME OF PART ren er e e a e Two Piece Packing Gland 8 Packing Gland Stud 15 Casing Capscrew for Head
8. O BE SURE THESE PRECAUTIONS ARE UNDERSTOOD FAILURE TO FOLLOW ABOVE LISTED PRECAUTIONARY MEASURES MAY RESULT IN SERIOUS INJURY OR DEATH Refer to figures 5 through 12 for name of parts CAUTION Older pumps may have snap ring on shaft remove the snap ring before removing rotor and shaft Carefully remove the rotor and shaft from the pump to avoid damaging the casing or rotor bearing sleeve bushing THRUST WASHERS Rotor thrust washer and rotor bearing sleeve thrust washer used in 0 M and N size pumps should be removed examined for excessive wear and replaced if necessary These thrust washers are located on the hub of the rotor and the casing end of rotor bearing sleeve If it is necessary to replace the casing rotor bearing sleeve or idler bushing and or repack the pump remove the old packing and lantern ring and packing retainer washer Some pumps don t have a lantern ring Clean all parts thoroughly and examine wear and damage Check bushings and idler pin and replace if necessary Check all other parts for nicks burrs excessive wear and replace if necessary ASSEMBLY 1 Install casing or rotor bearing sleeve bushing If bracket bushing has a lubrication groove install bushing with groove at 12 00 o clock position in bracket If carbon graphite refer to Installation of Carbon Graphite Bushings page 7 2 Thrust washers used in Q M and N size pumps should be assembled on the rotor hub and itor bearing sleeve P
9. TECHNICAL SERVICE MANUAL VIKING GENERAL PURPOSE PUMPS ee TSM 312 a SERIES 32 and 432 G 1 PUMP SIZES G N ee ee CONTENTS Introduction Special Information Maintenance Disassembly Assembly Installation of Carbon Graphite Bushings Pressure Relief Valve Instructions NN OOM NM N FIGURE 1 G Size Unmounted Pump INTRODUCTION The illustrations used in this manual are for identification purposes only and cannot be used for ordering parts Obtain a pars list from the factory or a Viking representative Always give complete name of par part number and material with model number and serial number of pump when ordering repair parts The unmounted pump or pump unit model number and serial number are on the nameplate In the Viking model number system basic size letters are combined with series number 32 and 432 indicating both unmounted or mounted pump unit UNMOUNTED PUMP AND UNIT MODEL NUMBERS Model Number Chart UNMOUNTED PUMP UNITS Units Are Designed By The Un Mounted Pump Model FIGURE 3 J K KK and L Sizes Unmounted Pump Numbers Followed By A Shown without pressure relief valve Letter Indicating Drive Style 4 V V belt D Direct Drive B Bracket Mounted FIGURE 4 LQ LL M and N Sizes Unmounted Pump IREX VIKING PUMP INC INEX CORPORATION A Unit of IDEX Corporation This manual deals only with Series 32 and 432 General Purpose Pumps Refer to Figures 1 thru 12
10. ad gaskets Tighten the head capscrews or nuts and then check the end clearance If the pump shaft cannot be rotated more gaskets must be added If however the pump has any noticeable end play remove enough gaskets so the pump has no appreciable end play but still turns freely 4 Remove head from pump Do not allow idler to fall from idler pin Tilt top of head back when removing to prevent this Avoid damaging head gasket set all gaskets are required to maintain end clearance 5 Remove idler and bushing assembly If idler bushing needs replacing see step 11 Remove the packing gland If you have a mechanical seal pump remove the end cap and the mechanical seal is exposed Remove the mechanical seal by sliding off the end of the shaft Loosen the setscrew in the set collar and remove it ASSEMBLY PUMP NORMAL ONE SET OF GASKETS STANDARD MODEL AMOUNT CONSISTS OF THE END USED FOLLOWING CLEARANCE Ge 010 015 5 H HL32 2 006 f H Hlas 010 01 3 002 003 J K KK32 015 020 L LQ LL33 025 030 012 030 M N32 015 036 1 006 FIGURE 13 GASKET TABLE 7 Place packing retainer washer in bottom of packing chamber and pack pump with new packing Use packing suitable for liquid being pumped Install packing staggering the joints from one side of shaft to other Lubricate packing rings with oil grease or graphite to aid assembly A length of pipe will help to
11. cating oil on the inside diameter of the synthetic rubber bellows Check the end of the pump shaft for sharp burrs or edges which might cut the bellows Slide the seal rotary member over the shaft and up against the spring 4 Coat the synthetic rubber seal seat with lubricating oil and push the seal seat into the end cap Put the end cap gasket on the end of the casing Slide end cap over the shaft and flush both the seal seat and carbon wear ring in the seal rotary member with oil Push the end cap up until the mating surfaces or the seal meet Install the capscrews and tighten evenly MECHANICAL SEAL OPTION SET COLLAR WITF SETSCREW f SEAL ROTARY MEMBER y END CAP SEAL SEAT SPRING SPRING WASHER 12 FOR MODEL G 432 e les 06 FOR MODEL H amp HL 432 FIGURE 15 SECTIONAL VIEW SEAL AREA INSTALLATION OF CARBON GRAPHITE BUSHINGS When installing carbon graphite 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 and adding a chamfer on the bushing and the mating part will help in installation The additional precautions listed below must be followed for proper installation 1 Apress must be used for installation 2 Becertain bushing is started straight 3 Do not stop pressing operation until bushing is in proper position starting and stopping will result in a
12. inch cross section packing Large for 0 38 inch and up cross section packing 4 Brass bar 5 Arbor press i 4 2 10 r w A_ amp has lz E pi FIGURE 5 EXPLODED VIEW MODEL G32 PUMP ren eea ven o ee mew O e 1 Packing Nut 6 Packing Spring Washer 11 Idler Bushing 16 Relief Valve Gasket Outer Packing Gland Eie and Bushing 17 3 Packing 8 Casing Bushing 13 fidler Pin 18 Capscrew for Vave Inner Packing Gland 9 Rotor and Shaft Head and Idler Pin a Packing Spring Idler and Bushing Capscrew for Head re S FIGURE 6 EXPLODED VIEW MODEL G432 PUMP NAME OF PART TEM NAME OF PART TEM NAME OF PART TEM NAME OF PART Capscrew for End Cap 6 Casing and Bushing Head Gasket Relief Valve End Cap 7 Casing Bushing Idler Pin Capscrew for Valve 7 3 Gasket for End Cap Rotor and Shaft 13 Head and Idler Pin Mechanical Seal Complete pg Idler and Bushing Capscrew for Head a 5 SetCollarwith Setscrew 10 idlerBushing 15 RelefValveGasket O oo a i FIGURE 7 EXPLODED VIEW MODEL H AND HL32 PUMP eea men rman ar cera an rr Two Piece Packing Gland 6 Packing Gland Stud Head Gasket Relief Valve Casing and Bushing Idler Pin 17 Capscrew for Valve Packing Retainer Washer 8 Rotor and Shaft Head and Idler Pin D Casing Bushing 9 Idler and Bushing Capscrew for Head Ee ft S Packing Gland Nut Idler Bushing Relief Valve Gasket a FIGURE 8 EXPLODED VIEW MODEL H AN
13. ing screw so pressure setting will not change during operation ol pump 2 Install a pressure gauge in discharge line for actual adjustment operation 3 Turn adjusting screw in to increase pressure and out to decrease pressure 4 With discharge line closed at a point beyond pressure gauge gauge will show maximum pressure valve will allow while pump is in operation IMPORTANT In ordering parts for pressure relief valve always give model number and serial number of pump as it appears on nameplate and name of part wanted When ordering springs be sure to give pressure setting desired TECHNICAL SERVICE MANUAL VIKING GENERAL PURPOSE PUMPS a 312 PET SERIES 32 and 432 PUMP SIZES G N ISSUE E VIKING PUMP are incorporated into any rom outside sources which are it d into a product are warranted only to extent of and by the original manufacturers warranty or guarantee f 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 IREX VIKING PUMP INC e VIKING PUMP INC INEN CORPORATION A Unit of IDEX Corporation Copyright 2000
14. r grease Refer to Engineering Service Bulletin ESB 515 Consul factory with specific lubrication questions PACKING ADJUSTMENT New packed pumps require initial packing adjustment to control leakage as packing uns in Make initial adjustments carefully and do nol over tighten packing gland After initial adjustment inspection will reveal need for packing gland adjustment or packing replacement Refer to instructions under Disassembly page 6 and Assembly page 6 regarding repacking pump CLEANING PUMP Keep pump as clean as possible This will facilitate inspection adjustment and repair work and help prevent overlooking a dirt covered grease fitting STORAGE f pump is to be stored or not used for six months or more pump must be drained and a light coat of nondetergent SAE 30 weight oil must be applied to all internal pump parts Lubricate fittings and apply grease to pump shaft extension Viking suggests rotating pump shaft by hand one complete revolution every 30 days to circulate the oil SUGGESTED REPAIR TOOLS The following tools must be available to properly repair Series 32 and 432 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 a industrial supply house 1 Soft Headed hammer 2 Allen wrenches some mechanical seals and set collars 3 Packing hooks flexible packed pumps Small for 0 25 inch and 0 31
15. ut the plain washer on the two locating pins on the rotor hub Put the grooved face washer on the pins on the rotor bearing sleeve with the grooved face toward the rotor 3 Coat shaft of rotor shaft assembly with non detergent SAE 30 weight oil Start end of shaft in bracket bushing turning from right to left slowly pushing rotor into casing 4 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 it turns freely with no appreciable end play The Gasket Table Figure 13 2 Mark head and casing before disassembly to insure gives the normal amount of gaskets used on each proper reassembly The idler pin which is offset in pump pump head must be positioned toward and equal distance ae between port connections to allow for proper flow of liquid 5 Coat idler pin with non detergent SAE 30 weight oil and place idler and bushing on idler pin in head If replacing carbon graphite bushing refer to installation of Carbon Graphite Bushings page 7 through pump 3 Remove the head capscrews NOTE The four valve capscrews valve and gasket must be removed from the GG models before the six head Capscrews are removed 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 teeth Do not damage the he
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