TECHNICAL SERVICE MANUAL
Contents
1. H Williams amp Co or equal 6 Spanner wrench adjustable pin type for use on double end caps Source 482 J H Williams amp Co or equal 7 Brass bar 8 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 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 FIGURE 2 EXPLODED VIEW SERIES 32 and 432 Ta e O C A CaS 2 Ouer Packing end Sores 32 oni o AdusingSeew re fern a ner Packing Gana Seres szo a Poe o Packing Spring Series32 only Casing Bushing Mechanical Seal Series 432 only Casing Rotor and Shaft DISASSEMBLY 1 Remove the capscrews and the head from the _ 0 pump It may be necessary to apply a slight pressure i on the drive end of the rotor shaft to free the head K from the casing DO NOT PRY the head fro2. at Adjusting Screw Cap EA Gasket for Cap 3 adusting Seow ra Son s Porpet 8 easng SAFETY RELIEF VALVE The relief valve is a safety device to protect the pump and motor against excessive pressure A pump without a properly set safety 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 Teflon 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 VIKING GENERAL PURPOSE PUMPS SECTION TSM 310 1 eect ages tra SERIES 32 and 432 PAGE 6 PUMP SIZES C F FH ISSUE B VIKING PUMP source are incorpore g prod ict are Saree only to te extent of Ta 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 IREX VIKING PUMP INC VIKING PUMP INC EX CORPORATION A Unit of IDEX Corporation Copyright 2000
3. TECHNICAL SERVICE MANUAL SECTION TSM 310 1 PAGE 1 ISSUE B VIKING PUMP GENERAL PURPOSE PUMPS SERIES 32 and 432 SIZES C F FH CONTENTS Introduction Special Information Maintenance Disassembly Assembly Pressure Relief Valve Instructions 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 an1wn FIGURE 1 SERIES 32 and 432 Pump 3 GPM Size Shown Packed or Mechanical Seal type Valve on casing clockwise rotation PACKED MECH SEAL Units are designed by SPECIAL INFORMATION C32 C432 the unmounted pump F32 F432 model numbers followed FH32 FH432 by a letter indicating drive style D Direct Drive V Vbelt This bulletin deals exclusively with Pump Models C F FH32 and C F FH432 General Purpose Pumps Refer to Figures 1 2 4 and 7 for general configuration and nomenclature used in this bulletin 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 All pumps can be furnished with either a mechanical seal or packing Packed pumps are furnished with suita
4. ain it turns freely 4 When reassembling a mechanical seal pump place the spring washer and spring on the shaft see Fig 4 Page 4 Coat the shaft and the inside of the rubber bellows of the seal rotary member with light oil Slide the 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 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 FIGURE 7 SAFETY RELIEF VALVE C F FH Size LIST OF PARTS
5. ble packing for the liquid pumped A seal pump can be changed to a packed pump by removing the mechanical seal and inserting the packing spring inner packing gland packing and outer packing gland The mechanical seal pump is dimensionally interchangeable with the packed pump VIKING PUMP INC A Unit of IDEX Corporation IE AEs CORPORA TION FAILURE TO THROUGH SUCTION OR DISCHARGE LINES OR OTHER APPROPRIATE OPENINGS OR CONNECTIONS THAT THE DRIVING MEANS MOTOR TURBINE ENGINE ETC HAS BEEN LOCKED OUT OR MADE NON OPERATIONAL SO THAT IT CANNOT BE STARTED WHILE WORK IS BEING DONE ON PUMP THAT YOU KNOW WHAT LIQUID THE PUMP HAS BEEN HANDLING AND THE PRECAUTIONS NECESSARY TO SAFELY HANDLE THE LIQUID OBTAIN A MATERIAL SAFETY DATA SHEET MSDS FOR THE LIQUID TO BE SURE THESE PRECAUTIONS ARE UNDERSTOOD FOLLOW ABOVE LISTED PRECAUTIONARY MEASURES MAY RESULT IN SERIOUS INJURY OR DEATH SPECIAL INFORMATION ROTATION Viking pumps operate equally well in a clockwise or caunterclockwise_ 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 ard 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 rup
6. d gaskets To correctly position the casing bushing in the casing see note in step 3 of RE ASSEMBLY MECHANICAL SEAL 432 FIGURE 5 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 operation An arbor press should always be used and the FIGURE 6 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 HEAD FACE REASSEMBLY 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 rotor shaft by hand to be cert
7. m the i casing as this may damage and mar the gasket i surfaces CAUTION The rotor and shaft is made of two pieces ELALEL Ee and the shaft can move in the rotor if tapped too hard jil I ANONA Carefully check Rotor amp Shaft Assembly before re Ue j ra HRR AENEAN assembling the pump 2 Remove idler from idler pin If the idler pin is worn both the head and idler pin and idler should be replaced Fi es PACKED 32 3 Next completely remove the rotor and shaft from the casing by exerting pressure on the drive end of the shaft FIGURE 3 4 Remove the packing nut 5 The pump is now ready for removal of packing or mechanical seal Refer to Figure 3 or 5 for example It is recommended a new mechanical seal or packing be 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 usualy considered advisable to also install a new casing bushing HEAD GASKETS PACKING NUT ROTARY MEMBER SPRING WASHER SEAL SEAT IDLER SPRING HEAD AND IDLER PIN RETAINER LUG HEAD CAPSCREWS CARBON WEAR RING ROTOR AND SHAFT FIGURE 4 Pump Size A Dimension C 0 88 to 0 94 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 hea
8. prove the performance of the pump without major repair by adjusting the end clearance Refer to instructions under reassembly of the pump for information regarding this procedure 4 SAFETY RELIEF VALVE lf 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 pressue 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 MAINTENANCE 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 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 fran an industrial supply house 1 Soft Headed hammer Allen wrenches Some mechanical seals and set collars 2 3 Packing hooks flexible packed pumps 4 Mechanical seal installation sleeve 5 Bearing locknut spanner wrench Source 472 J
9. ture disk 2 This series of pumps may be equipped with an integral pressue 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 counterclockwise 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 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 The Series 32 and 432 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 Refer to re assembly instruction for proper installation of packing 3 END CLEARANCE ADJUSTMENT After long term operation it is sometimes possible to im
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