Larzep HEP0020 Instructions for use
V01.2019
INSTRUCTIONS&MAINTENANCESHEET
ELECTRICTESTPUMPS
HEP0020
LARZEP,S.A.
AvenidaUrtiaga,6
48269Mallabia,Spain
Tel.+34943171200
Fax.+34943174166
e‐mail:[email protected]m
www.larzep.com
2
InstructionsandMaintenanceSheets
ElectricTestPump“HEP0020”
DECLARATIONOFCONFORMITY
3
InstructionsandMaintenanceSheets
ElectricTestPump“HEP0020”
WARRANTY
LARZEP, S.A. guarantees its products against all design and manufacturing defects for two years from the date of
purchase.Thisguaranteedoesnotincludetheordinarywearofbothmetaland non‐metalparts,abuse,usingthe
equipmentbeyonditsratedcapacityandanywearordamageincurredasaresultofusingahydraulicfluidwhichis
notrecommendedbyLARZEP,S.A.
Pleasenotethatiftheequipmentisdisassembledorservicedbyanyoneotherthananauthorizedservicedealeror
byLARZEP,S.A.,thisguaranteeisrenderednullandvoid.
Intheeventofawarrantyclaim,returntheequipmenttoLARZEP,S.A.ortheauthorizeddealerwhichsoldyouthe
hydraulic equipment. LARZEP, S.A. will repair or replace the faulty equipment, whichever is deemed most
appropriate. LARZEP, S.A. shall not be held liable for any consequential damages or losses, which may occur as a
resultoffaultyequipment.
BEFOREUSINGTHEEQUIPMENTANDESSENTIALSAFETYREQUIREMENTS
‐ ThisElectrictestpumpsHEP0020hasbeendesignedforpressurizingandtestinghydraulicsystemsandfor
pouringoperations.Thepumpcanworkwithcleanwater,watersolutionsandnon‐acidliquids,suchasantifreeze
liquids.
‐ Readtheinstructionmanualcarefullyandpractiseusingtheequipmentbeforeapplication.
‐ Alwaysuseprotectivegoggles,shoesandgloves.
‐ Allpumpsaretestedindividually.
‐ Donotmodifythepump(weldedparts,etc.).
‐ Usethehandlesonthepumpfortransportingthedevice.Donotusethehoseorpipe.
‐ Never exceed maximum working pressure of the pump. Ensure that all the equipment and accessories are
suitableforthemaximumworkingpressure.
‐ Neverturnonthepumpwhenthepumpisnotconnectedtotheplant.Donotpressurizethepumpwithoutbeing
connectedtoanitemtobepressurizedunlessablankingplugisfittedtotheoutletport.
‐ Nevertightenorloosenconnectionswhiletheyareunderpressure.
‐ Checkthattherearenodamagesonthepump.Iftherearewornordamagedpieces,replacethemimmediately.
‐ Respectelectricalsafetyrequirements:anyoperationmustbeperformedbyqualifiedpersonnel,onlywhenthe
machineisdisconnectedfrompower.Replaceanyelectricalcomponentsifdamaged.Keepdryanyelectricpart.
‐ Work always in a safe way. Respect general safety conditions. Before starting operation, check that the
installationiscorrect,theoperatorpositionissafeandtheworkingzoneisoutofboundstoallpersonnel.
‐ Inallcases,theoperatorshouldhavereceivedadequatetrainingregardingthehandlingofthedeviceandlogical
safetycriteriaassociatedwiththemovementofheavyloads.
TECHNICALFEATURES
Dimensions 500x190x280mm
Weight 17kg
Max.WorkingPressure 20bar
FlowRate 15l/min
OutletPort 1/2”BSPMale
Hose 1/2”BSPFemale
–
1.500mm
Tank 12litres
Motor 230V~50Hz
Power 0,75kW–1.400rpm
Max.WorkTemperature 60°C
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InstructionsandMaintenanceSheets
ElectricTestPump“HEP0020”
ASSEMBLYANDOPERATINGINSTRUCTIONS
‐ The components are shipped unassembled to prevent breakage or unnecessary bulk during transport or the
stockageinwarehouse.Beforestartingoperations,checkifthepumphasbeenlabelledwithserialnumberand
technicaldata.Keeppackageforfurthertransportsorstockage.
Beforestartinganyoperation,cleanthetanktoeliminateanyresidueorwaste.
‐ Placetheequipmentonaflatandsolidarea.
‐ Assemblyallcomponents.Thepumpissuppliedwitha1.5metreshose,glycerinpressuregaugeø60andcontrol
valve.
‐ Beforeoperatingthepumpalwaysmakesurepipeconnectionsarecleanandfullytightenedup;allaccessories
mustbefittedcorrectlyandnot damaged: suction tube with nut and filter, pressure gauge and hose forhigh
pressure.Alwaysuseprotectivegoggles,shoesandgloves.
‐ Checkthesuctionfilterbeforeanytesting.
‐ Fillupthetankwithatleast9litresofcleanwaterandensurethesuctiontubeiscompletelysubmerged.
‐ Connectthepumptothesystemorequipmenttotestthroughahosewithoutusingtoohightorque.Makesure
thattheblackhandleofthecontrolvalveisclosed.
‐ Oillevelcheck:Thepumpistestedbeforethedeliverysoitiswithoil.Ifnecessary,orafter500workinghours,fill
uptheoiltankupto0.08litrelevelwithSAE30oil.
‐ Suction hose: Suction hose cannot have bendings and the filter have to be clean. Avoid air suction, it causes
pressureinstabilityandcouldmakedifficultthetestoperations.
‐ Suctiontank:Ensurethatinlethoseandbypasshosearenottooclosetoavoidturbulencesinsidethetank.
‐ Airaccumulator:Checkthepressureinsidetheairtankperiodically,airaccumulatormustbeatamax.5/6bar.
‐ Suctionhead:Keepamaximumsuctionheightbelow3metres.Avoidbendingorcrushinghosesand,ifpossible,
fillwithwater.
‐ Powerconnection:Beforeconnection,checkiftheelectricplantisaccordingtosafetyrequirementsandif itis
abletosupplyalltherequiredpower,andturnoffthepump.Donotconnectotherelectricchargesonthesame
socket.Whenusingextensioncords,ensurethatthesectionofthecableisappropriatefortheelectricitytoavoid
hightemperaturesanddissipation.
‐ Airblowing:Toavoidpressureoscillationduetoairinthesystem,itisnecessarytopurgetheaircircuittofillthe
systemcompletely.
Dependingontheapplicationchooseoneofthenextprocedures:
TESTHYDRAULICSYSTEMORPLANT
‐ Connectthecontrolvalvetothesystemtobetested.Fillthetankorconnectthesuctionpipetothelocalwater
network.Inthiscase,makesure that the drain pipe is placed so that the bypass liquid can be collected in a
containerwithenoughcapacity.Makesurethecontrolvalveisopen.
‐ Opentheblackcontrolvalveandtheregulatingvalve(blue)inthe'BYPASS'position,completelyopen.Thenstart
thepumpandholdthispositionuntilthesystemhasbeenprimed.
‐ Whenwaterflowstarts,movethebluevalvetothe'PRESS'position and turn the black handle to adjust the
workingpressure:clockwisetoincreaseit,counterclockwisetodecreaseit.Neverexceedthemaximumpressure
ofthepump.
‐ Oncethedesiredtestpressurehasbeenreached,closetheblackcontrolvalveandturnoffthepump.
‐ Tofinishthetest,opentheblackhandletoreleasethepressurefromthesystemandreturntheliquidtothetank.
‐ Duringthetest,thepumpcanbedisconnectedfromthecontrolvalve(closed)andstoredinadryandcleanplace.
Ensurethatalltheequipmentandaccessoriesaresuitableforthemaximumworkingpressure.
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InstructionsandMaintenanceSheets
ElectricTestPump“HEP0020”
FILLINGANDPOURING
‐ Verifythattheliquidinthetankiscompatiblewiththecharacteristicsofthepump.
‐ Insert the suction and discharge pipes into the container to befilledorpoured.Highpressurepipeshouldbe
placedinthetankwhereliquidwillbepouredorconnecttothesystemtobefilled(i.e.solarpanels).
‐ Beforestaringthepump,movetheregulatingvalve(blue)tothe'BYPASS'position,completelyopen.
MAINTENANCE
‐ Toavoiddamagetothepump,cleanitafteritsuse.Forthat,runthepumpwithcleanwaterunderpressurefora
fewminutes.Thenemptythepumpandleaveitdryingforduringsomeminutes.
‐ Avoid frozen water inside the pump, it will damage the pump and the joints. In case of frost hazard, empty
completelythepumpfromwaterormixitwithanantifreezefluid.
‐ Suctionvalveandgaskets:Dirtyordamagedsealswillavoidthevalveclosingperfectly.Removethevalvecover
andcheckifthesealsareclean.
‐ Membranereplacement:Removetheheadandthemembrane.Cleaninternallywithdiesel.Carefullyassemblya
new membrane. Then, fill the pump with oil and rotate manually the shaft to discharge theair.Checkoil level
afterthisoperation.Closetheoiltankandchecktheoillevelwiththepumppressurized.
‐ Oilchange:Firstoilchangeshouldbedoneafterfirst500workinghours,andthenevery500workinghours.For
that,removetheoilcap,turnover the pump, and empty all the used oil. Then place the pump in its normal
positionandfilluptheoiltankuptothelevelwithSAE30oil.Warning:Ahigheroillevelwillcausehighpressures
andtensionsinsidethepumpandcandamagethepumphead.Then,startthemotorandrunitforafewminutes
withoutwater.Checktheoillevelagainandrefillitifnecessary.
‐ Periodicallychecktheconditionofthepipes,hoseandthefilter.
‐ Useoriginalsparepartsandaccessories.Repairoperationmustbeperformedalwaysbyqualifiedpersonnel.
‐ Ifthepumpisnotusedforalongtime,orinlowtemperatures countries, pump a little amount of no‐frost
solution into the pump. This will enlarge the life of the gaskets and avoid the freezing. Before re‐starting the
motor,ifnecessary,turnthevalvemanually.
TROUBLESHOOTING
‐ Motordoesnotstart:Checkelectricalconnections,thermicprotection,emergencystop switch and magneto
switchonthemachine.Checkdifferentialonthepowerline.
‐ Motorstopssuddenly:Thermicprotectionswitchedoffthepumpfortoohightemperature.Checkifvoltageis
correct.Wait10minutestore‐start.
‐ Motoroverheating:Checkmotorventilation,starterconditionsandoillevel.
‐ Pumpdoesnotturn:Checkif'BYPASS'valveisopenandcheckstartercapacitor.
‐ Pumpdoesnotreachthedesiredpressure:checkinorder:suctionfilter,airinthepump,pressurevalves,inlet
connections,seals.
‐ Pressure change continuously:checkthepresenceofairbubblesinthecircuit,checkthepresenceof dirt, the
filter,valvesandseals.
‐ Pressuredrop:Checkdirtyonfilterandvalves.Checkthegaskets.
‐ Noisy pump: Check air suctions. Clean and move the valve. Clean the filter. Check water temperature. Check
mechanicalparts,particularlyballbearings.
‐ Oilleaks:replaceoilgaskets.
‐ MotorHum: Turn off the motor immediately and verify if the pump is not blocked.Check ifthevoltageinthe
electricnetcorrespondswiththedatalabel.Rememberthatlongpowercordsmaycausevoltagelosses.Verify
voltageatthepumpplug.
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InstructionsandMaintenanceSheets
ElectricTestPump“HEP0020”
SPAREPARTS
Thepumpmustalwaysbehandledandrepairedbyqualifiedpersonnel.
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