TECHNICAL SERVICE MANUAL
Contents
1. bearing spacer collar in the outer end cap and turn the end cap into the bearing housing until tight against the bearing Lock in place with two set screws in the flange of the bearing housing Put lockwasher and locknut on shaft Insert length of hardwood or brass through port opening between rotor teeth to keep shaft from turning Tighten locknut to 100 130 Ft Ibs Torque Bend one tang of lockwasher into slot of locknut If tang does not line up with slot tighten locknut until it does Failure to tighten locknut or engage lockwasher tang could result in early bearing failure and cause damage to pump Remove length of hardwood or brass from port opening 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 THRUST BEARING ADJUSTMENT 1 See Fig 5 Loosen the two set screws A in the outer face of the bearing housing B clockwise until it cannot longer be turned by hand Back off counter clockwise until the rotor shaft can be turned by hand with a slight noticeable drag For standard end clearance back off the thrust bearing assembly B 1 25 length measured on the outside of the bearing housing FIGURE 5 Tighten the two self locking type Allen set screws A in the outboard face of the bearing housing with equal force against the bracket Your pump is now set with standard end clearanc2. 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 Rotation The Model LV3900 is bi rotational When rotating CW the suction port is the side port When rotating CCW the suction port is the top port MAINTENANCE Model LV3900 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 Before each use external lubrication should be applied slowly with a handgun at all 4 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 Do not over grease Consult the factory if you have specific lubrication questions PACKING ADJUSTMENT New packed pumps require initial packing adjustment to control leakage as packing runs in Make initial adjustments carefully and do not
3. Electronic copies of the most current TSM issue can be found on the Viking Pump website at www vikingpump com TECHNICAL SERVICE MANUAL HEAVY DUTY BRACKET MOUNTED PUMPS PAGE 1 OF 6 MODEL LV3900 Issue c MAINTENANCE AND REPAIR INSTRUCTIONS SECTION TSM 110 2 INTRODUCTION This bulletin deals exclusively with the Model LV3900 Heavy Duty Pump The illustrations used are to help you identify pump parts by name and to assist in the maintenance and repair of your pump When ordering repair parts secure a parts list from your Viking representative and be sure to give the complete part name and material as well as the pump model and serial number CONTENTS Maitena nN e wc scciccteestectesecaecacicceesseovioceesteendacadveceseeeeereesceens 2 RE E EEE EEE AE TEE AET 3 Thrust Bearing Adjustment 4 MODEL LV3900 FIGURE 1 DANGER Before opening any Viking pump liquid cham ber 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 To extend the life of the LV3900 it is recommended that or connections the pump be operated within the catalog ratings whenever possible 2 That the driving means motor power takeoff turbine engine etc has been locked out or made non operational so that it cannot be started while work is being done on pump Catalog Ratings Pressu
4. FOR PARTS IDENTIFICATION 3 epee 5 FIGURE 2 NAME OF PART Packing canine Packing Retainer Washer 6 BallBearng f m Grease tings O o Cea andlor Pm CS e Ring HaitRound 20 capscrewtorBraet 32 Grease iting SSCS o Beantown a Peers O T SSS S SSS 0o Packing Gland f 2 feextonesaso O O S o a Panonan fam y OO y A 2 Pang Gland Capscrew a sws OOOO O T y DISASSEMBLY compressed air Do not allow bearings to spin turn them slowly by hand Spinning bearings will damage race and 1 Markhead and casing before disassembly to insure proper balls Make sure bearings are clean then lubricate with reassembly The idler pin which is offset in pump head light oil and check for roughness Roughness can be must be positioned toward and equal distance between determined by turning outer race by hand port connections to allow for proper flow of liquid through 11 Casing can be checked for wear or damage while the pump mounted on bracket 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 ASSEMBLY 2 Remove idler and bushing assembly 1 Install bracket bushing If bracket bushing hasa lubrication 3 Insert length of hardwood or brass through port opening groove install bushing with groove at 6 o clock position between rotor teeth to keep shaft from turning Bend up in bracket tang of lockwasher
5. IZED CONTRACTS LOSS OF GOODWILL DAMAGE TO REPUTATION LOSS OF PROPERTY LOSS OF INFORMATION OR DATA LOSS OF PRODUCTION DOWNTIME OR INCREASED COSTS IN CONNECTION WITH ANY PRODUCT EVEN IF VIKING HAS BEEN ADVISED OR PLACED ON NOTICE OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ANY ESSENTIAL PURPOSE OF ANY PRODUCT THIS WARRANTY IS AND SHALL BE VIKING S SOLE AND EXCLUSIVE WARRANTY AND SHALL BE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ALL WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT ALL OF WHICH OTHER WARRANTIES ARE EXPRESSLY EXCLUDED See complete warranty at www vikingpump com 3 2013 Viking Pump Inc All rights reserved CORPORATION VIKING PUMP INC A Unit of IDEX Corporation Cedar Falls IA 50613 USA
6. aft to other Lubricate packing 10 Clean all parts thoroughly and examine for wear and rings with oil grease or graphite to aid assembly NOTE damage Check lip seals ball bearing bushings and idler Be sure the lantern ring is positioned below the grease pin and replace if necessary Check all other parts for fitting Install and seat each ring of packing one at a time nicks burrs excessive wear and replace if necessary staggering the ring joints from one side of the shaft to Wash bearings in clean solvent Blow out bearings with the other Lubricate the packing rings with oil grease or SECTION TSM 110 2 ISSUE C PAGE 4 OF 6 10 BUSHING IDLER DISC FIGURE 3 BALL BEARING BEARING HOUSING SETSCREW SPACER COLLAR SHAFT are CLOSURE ENDCAP SETSCREW HALF ROUND RINGS FIGURE 4 graphite to aid assembly A length of pipe or tubing will help to install and seat each packing ring Install packing gland capscrews and nuts Make sure gland is installed square and nuts are tightened evenly Tighten nuts until packing gland is snug against packing Slide the inner spacer collar over the shaft with recessed end facing rotor Install the lip seal lip toward end of shaft in the bearing housing and turn the bearing housing into the bracket Pack the ball bearing with grease place on the shaft and push or drive into place in the housing Install the lip seal with lip toward end of shaft and
7. and with a spanner wrench remove 2 Coat shaft of rotor shaft assembly with light oil Start locknut and lockwasher from shaft i end of shaft in bracket bushing turning from right to left 4 Loosen two setscrews in the face of the bearing housing slowly pushing rotor in casing and remove the bearing housing assembly from the 3 bracket Refer to Figure 5 5 Remove pair of half round rings under the inner spacer collar from the shaft 6 Remove packing gland capscrews slide packing gland out of stuffing box remove packing and lantern ring Coat idler pin with light oil and place idler and bushing on idler pin in head 4 Using a 010 to 015 inch head gasket install head and idler assembly on pump Pump head and casing were marked before disassembly to insure proper reassembly If not be sure idler pin which is offset in pump head 7 Carefully remove rotor and shaft to avoid damaging is positioned toward the equal distance between port bracket bushing connections to allow for proper flow of liquid through 8 Loosen two radial setscrews in flange of bearing housing pump and with a spanner wrench remove the outer end cap Tighten head capscrews evenly with lipseal and outer bearing spacer collar 5 When assembling packed pump use packing suitable 9 Remove the double row ball bearing lipseal and inner for liquid being pumped Install packing staggering the bearing spacer collar from the bearing housing joints from one side of sh
8. ction 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 into any part of the drive train if there is any possibility of the pump shafts being rotated DO NOT exceed the pump s rated pressure speed 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 6 Danger Failure to follow the indicated instruction may result in serious injury Warning In addition to possible serious injury or death fa
9. es and locked NOTE Be sure the shaft can rotate freely If not back off additional notches and check again High viscosity liquids require additional end clearances The amountofextraendclearance depends ontheamount of the liquid pumped For specific recommendations consult the factory Each additional on the outside diameter of the bearing housing is equivalent to an extra end clearance of 001 SECTION TSM 110 2 ISSUE C PAGE 5 OF 6 TECHNICAL SERVICE MANUAL HEAVY DUTY BRACKET MOUNTED PUMPS PAGE 6 OF 6 MODEL LV3900 issue c MAINTENANCE AND REPAIR INSTRUCTIONS SECTION TSM 110 2 VIKING PUMP IBEX 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 The warranty period for Universal Seal series pumps ONLY Universal Seal models listed below is three 3 years from date of startup provided that in no event shall this warranty extend more than forty two 42 months from the date of shipment from Viking UNDER NO CIRCUMSTANCES SHALL VIKING BE LIABLE UNDER THIS WARRANTY OR OTHERWISE FOR SPECIAL INCIDENTAL INDIRECT CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY KIND INCLUDING BUT NOT LIMITED TO LOST OR UNREALIZED SALES REVENUES PROFITS INCOME COST SAVINGS OR BUSINESS LOST OR UNREAL
10. ilure 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 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
11. over tighten packing gland After initial adjustment inspection will reveal need for packing gland adjustment or packing replacement Refer to instructions under Disassembly and Assembly regarding repacking the pump PACKING GLAND PACKING BEARING HOUSING ASSEMBLY BRACKET CLEANING PUMP It is good practice to keep pump as clean as possible This will facilitate inspection adjustment and repair work and help prevent omission of lubrication to fittings covered or hidden with dirt STORAGE If pump is to be stored or not used for six months or more pump must be drained and a light coat of lubricating and preservative oil should be applied to the internal parts Lubricate all fittings SUGGESTED REPAIR TOOLS The following tools must be available to properly repair Model LV3900 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 3 Packing hooks flexible 4 Bearing locknut spanner wrench Source 471 J H Williams amp Co or equal 5 Spanner wrench adjustable pin type for use on double end caps Source 482 J H Williams amp Co or equal 6 Brass bar 7 Arbor press ROTOR FIGURE 2 PUMP SHOWN FOR NOMENCLATURE REFERENCE ONLY IDLER PIN HEAD CASING SECTION TSM 110 2 ISSUE C PAGE 3 OF 6 EXPLODED VIEW MODEL LV3900
12. re Range PSI 200 PSI 100 SSU and above Contact factory for pressures greater than Bar 14 Bar 20 cSt and above 7 Bar below 20 cSt Temp Range CF C dC Viscosity Range Up to 750 SSU 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 200 PSI Failure to follow above listed precaution ary measures may result in serious injury or death CORPORATION VIKING PUMP INC 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 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 110 2 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 su
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