Viking Pump Technical Service Manual 320.1 for General
Contents
1. rotary member part way down the shaft NOTE The lapped face of the carbon wear ring must face toward the shaft end of the pump Be sure the notches on the edge of the carbon wear ring mate with the retainer lugs in the rotary member Oil the lapped faces of the rotary member and the seal seat Slide the seal seat on the shaft until it contacts the rotary member and then push the complete seal into the casing Replace the packing nut and tighten Your pump is now completely assembled Once again turn the pump shaft by hand to be sure it turns freely Start the pump with a supply of liquid in the suction line since the pump should not be run dry 5 If the pump has packing rather than a mechanical seal place the spring and inner packing gland on the shaft and slide into the pump Next install the packing Stagger the joints in the packing a half turn and add lube oil between each ring of packing Push the outer packing gland in the casing and replace the packing nut and tighten SECTION TSM 320 1 ISSUE D PAGE 5 OF 7 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 DANGER Before opening any Viking pump liquid chamber 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 discharge2. 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 suction on the right viewing the shaft end of the pump but it also may be ordered for counter clockwise rotation The valve cannot be reversed for opposite rotation 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 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 Series 56 and 456 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 not required for this series of pumps The liquid being pumped lubricates the internal bearings in the pump 2 PACKING ADJUSTMENT These pumps are designed with a packing spring to maintain a constant load on the packing no external adjustment is possible When leakage becomes excessive the packing must be replaced Ref
3. ALLATION 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 Warning In addition to possible serious Symbol Danger Failure to follow the indicated injury or death failure to follow the Legend a m y result in serious Injury indicated instruction may cause damage SECTION TSM 320 1 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
4. TECHNICAL SERVICE MANUAL SECTION TSM 320 1 GENERAL PURPOSE HUB MOUNTED PUNPS pace 1 oF 7 CONTENTS Introduction wos v eras Bee ee ee ee 1 Special Information 04 1 Pressure Relief Valves 00 4 2 Maintenance 6 eae ea A ROR Ra BR es 2 Disassembly 2 2045 2 Installing Casing Bushing 4 ASSOMDIY eies Gee a Ge eA ee E A a 2 A 4 Pressure Adjustment 0 5 Special Pump Designs 5 INTRODUCTION The illustrations used in this maintenance bulletin 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 and serial number of the pump when ordering repair parts UNMOUNTED PUMP UNITS PACKED MECH SEAL Units are designated by the C56 unmounted pump model numbers followed by a letter F56 indicating drive style M Motor Mounted Unit FH56 This manual deals exclusively with Pump Models C F FH56M and C F FH456M General Purpose Pumps Refer to Figures 1 2 4 and 7 for general configuration and nomenclature used in this bulletin All pumps can be furnished with either a mechanical seal or packing Packed pumps are furnished with suitable packing for the liquid pumped A seal pump can be changed to a packed pump by removing the mechanical seal and inserting the packing
5. ation An arbor press should always be used and the bushing should be installed in one even uninterrupted stroke of the press Dip the bushing in lube oil and start the bushing in the head end of the casing Press until located to the A dimension in Figure 6 CLL ELLA a A pf title HEAD We FACE FIGURE 6 F amp FH 1 19 to 1 25 The end clearance within the pump is governed by the location of the casing bushing as well as the number of head gaskets To correctly position the casing bushing in the casing see note in step 3 of ASSEMBLY SPRING RETAINER LUG SPRING WASHER FIGURE 5 ASSEMBLY 1 Clean all parts thoroughly 2 Place the rotor and shaft in the casing 3 Put the head gaskets on the head and the idler on the idler pin projecting from the head Replace the head in the casing tighten cap screws NOTE If a new casing bushing has been installed in the casing use only one 002 head gasket on the head and tighten the capscrews evenly and securely This will correctly position the bushing in the casing Remove the head add one 002 head gasket and replace the capscrews and tighten securely NOTE Turn the shaft by hand to be certain it turns freely 4 When reassembling a mechanically sealed pump place the spring washer and spring on the shaft see Figure 5 Page 4 Coat the shaft and the inside of the rubber bellows of the seal rotary member with light oil Slide the
6. er to ASSEMBLY page 4 instruction for proper installation of packing 3 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 instructions for information regarding this procedure 4 PRESSURE RELIEF VALVE If your pump is equipped with a safety relief valve adjustment 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 safety relief valve may be necessary Be sure adjusting screw cap is re installed before pump is started 5 CLEANING THE PUMP It is good practice to keep the pump as clean as possible This will facilitate inspection adjustment and repair work 6 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 56 and 456 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 Packing ext
7. g DO NOT PRY the head from the casing as this may damage and mar the gasket surfaces 2 Remove idler from idler pin If the idler pin is worn both TTT it ia the head and idler pin and idler should be replaced 3 Next completely remove the rotor and shaft from the TI M i i i EXDKDK i casing by exerting pressure on the drive end of the shaft 4 Remove the packing nut PACKED 5 The pump is now ready for removal of packing or 56 mechanical seal Refer to Figure 3 or 4 for example It is recommended a new mechanical seal or packing be FIGURE 3 used every time a pump is completely disassembled All parts should be examined for wear before the pump is put together When making major repairs such as replacing a rotor and shaft it is usually considered advisable to also install a new casing bushing aii SSS MECHANICAL SEAL 456 FIGURE 4 SECTION TSM 320 1 ISSUE D PAGE 4 OF 7 ROTARY PACKING NUT MEMBER SEAL SEAT CARBON WEAR RING INSTALLING CASING BUSHING The casing bushing can be replaced in the following manner Insert a bar approximately 0 94 diameter and at least 3 5 long in the packing or seal end of the casing and press the bushing out of the casing When installing a new carbon graphite bushing extreme care should be taken to prevent breakage as carbon graphite is a brittle material and easily cracked When cracked the bushing may quickly disintegrate in oper
8. ive 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 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
9. 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 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 Loosen the locknut which locks the adjusting screw so pressure setting will not change during operation of the pump 2 Install a pressure gauge in the discharge line for the actual adjustment operation 3 Turn the adjusting screw in to increase pressure and out to decrease pressure 4 With the discharge line closed at a point beyond the pressure gauge the gauge will show the maximum pressure valve will allow while the pump is in operation SECTION TSM 320 1 ISSUE D PAGE 6 OF 7 IMPORTANT In ordering parts for the pressure relief valve always give the model number and serial number of the pump as it appears on the nameplate and the
10. name of the part wanted When ordering springs be sure to give the pressure setting desired FIGURE 7 PRESSURE RELIEF VALVE C F FH SIZE VALVE LIST OF PARTS 1 Adjusting Screw Cap 4 Spring 2 Gasket for Cap 3 Adjusting Screw 5 Poppet 6 Casing PRESSURE RELIEF VALVE The relief valve is a pressure device to protect the pump and motor against excessive pressure A pump without a properly set pressure relief valve operating against a closed discharge line could build up enough pressure to damage the pump or motor The pressure setting is increased by turning the adjusting screw in and decreased by turning the adjusting screw out SPECIAL PUMP DESIGNS Pumps furnished with a PTFE Mechanical seal require a special rotor and shaft with drive pin installed for positive drive of the rotating member All other assembly and disassembly instructions are the same TECHNICAL SERVICE MANUAL GENERAL PURPOSE HUB MOUNTED PUMPS SERIES 56 AND 456 SIZES C F FH SECTION TSM 320 1 PAGE 7 OF 7 ISSUE D VIKING HEEX 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 period any products sold by Viking prove to be defective in workmanship or material under normal u
11. 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 D PAGE 2 OF 7 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 dr
12. ractor flexible Mechanical seal installation sleeve Brass bar oo e ON Arbor press 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 the chamber has been completely vented through the 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 320 1 ISSUE D PAGE 3 OF 7 FIGURE 2 EXPLODED VIEW SERIES 56 AND 456 ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART Ea Electric Motor 10 Inner Packing Gland Series 56 only 19 Rotor and Shaft Assembly 6 Setscrew for Pump to Bracket 15 Adjusting Screw 24 Capscrew for Head Outer Packing Gland Series 56 only 17 Poppet Packing Series 56 only Casing Bushing 1 Remove the capscrews and the head from the pump It may be necessary to apply a slight pressure on the drive end of the rotor shaft to free the head from the casin
13. se 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 Ilowa 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 IREX IDEXCORPORATION VIKING PUMP INC e A Unit of IDEX Corporation Cedar Falls IA 50613 USA 5 2007 Viking Pump Inc All rights reserved
14. spring inner packing gland packing and outer packing gland The mechanical seal pump is dimensionally interchangeable with the packed pump SERIES 56 AND 456 SIZES C F FH ISSUE D FIGURE 1 SERIES 56M AND 456M PUMP 3 GPM Size Shown Packed Or Mechanical Seal Type Valve On Casing Clockwise Rotation 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 the chamber has been completely vented through the 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 IDEX CORPORATION VIKING PUMP INC e A Unit of IDEX Corporation Cedar Falls IA 50613 USA SAFETY INFORMATION AND INSTRUCTIONS IMPROPER INSTALLATION OPERATION OR MAINTENANCE OF PUMP MAY CAUSE SERIOUS INJURY OR DEATH AND OR RESULT IN DAMAGE TO PUMP AND OR OTHER EQUIPMENT VIKING S WARRANTY DOES NOT COVER FAILURE DUE TO IMPROPER INST
Download Pdf Manuals
Related Search