RIKEN SEIKI SMP-30 Series User manual

COMPACTELE. HYDRAULICPUMP
SMP-30, 40 Series
INSTRUCTION MANUAL
RIKEN KIKI CO., LTD

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Foreword
ThankyouverymuchforpurchasingthiselectricallypoweredpumpproducedbyRikenKikiLtd.
Thismanualexplainstheuseandsafetyfeaturesofthesemotorpoweredpumpsandcontains
informationvaluabletobothexperiencedandalsofirsttimeusersoftheseelectricallypowered
pumps.Thereforethecontentsofthismanualshouldbereadandfullyunderstoodbyall
personnelwhowillusethesepumps.Keepthismanualinasafeplacebutaccessiblefor
referenceduringoperation.
CautionsRegardingSafety
Properoperationandperiodicinspectionareabsolutelynecessarytoensuresafeusageof
thepump.Donotoperatethemicropumpuntilthesafetypointslistedinthismanualhave
beenreadandfullyunderstood.Themark
 “WARNING”isusedtodenoteitemsthatmayleadtobodilyinjuryifsafetypointsare
notfollowed.
 “CAUTION”isusedtodenoteitemsthatmayleadtodamageormalfunctionofthe
micropumpifsafetypointsarenotfollowed.BothWARNINGandCAUTIONsections
containimportantinformationthatmustbefollowed.Shouldthemicropumpmalfunction
duringoperation,removetheelectricalplugandcontactyoursalesorservicerepresentative.
(1)Donotusethesepumpswhereanoilleakwillcausedamagetoadjacentequipmentorthe
surroundingarea.Alsodonotusepumpsclosetoflammablematerialstominimizetheriskof
injuryandfire.
(2)Pumpswillnotgeneratepressureuntilthedischargeoutletplugisremoved.Thereforebefore
starting,removetheplugfromtheoutletportandreplacewithhighpressurehosesorcouplers.
(3)Themaximumoutputpressureofthesepumpsis70MPa.Forsafety,eachpumpisfactory
fittedwithahighpressuresafetyvalveadjustedto73MPa.Donotallowthesafetyvalvetobe
increasedalevelhigherthan73MPa.Wherethepumpisfittedwithapressureswitch,set
thisat70MPaorless.
(4)Whenusingthepumptopowerhydraulicequipmentwithaworkingpressureoflessthan70
MPa,eitherlowerthesettingofthehighpressuresafetyvalveoradjustthepressureswitchto
matchtheworkingpressureoftheequipment.Bewarnedfailuretolowersettingscouldresult
inequipmentdamage.Refertopage37“AdjustingtheHighPressureSafetyValve”forthe
procedureregardingpressureadjustment.
(5)Ensurepowerisswitchedoffbeforeconductingelectricallyrelatedmaintenanceorinspection.
(6)Releasingthepressuresuddenlyfromthejackingupcylinderorwirestandoccurstodropping
orbouncingoftheloads,andithappenstopersonalinjury.Thebasicpumpis“dump”type
andisnotdesignedtoholdpressureoncethemotorstops,avarietyofvalvesareavailable
fromRikentoprovidepressureholdwhenrequired.ContactRikenoryourlocalsalesagent
forinformationonsuitablevalvestoprovidepressureholdandreleasefunctions.
WARNINGS

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(7)EnsurethattheOperationSwitchisturnedoffbeforeinsertingthepowercordplugintoa
powersourceotherwisethepumpwillstart,causingthecylinderpistontoextendandthe
pumptocreatepressure.
(8)Topreventelectricshock,ensurethepumpearthwireisconnectedtotheelectricalplugand
switch.
(9)AnymodificationtothesepumpswithouttheconsentofRikencouldcausedamageaswellas
compromisethesafetyoftheoperatoroftheseelectricpumps.ContactRikenbeforeany
modificationsarecarriedout.Rikenwillassumenoresponsibilityformodificationsperformed
withoutpermission.
(10)Thepumpreservoirisfittedwithanairvalvewhichallowsairtoreplaceoilasitisused.Ifthe
pumpisoperatedwiththeairvalveclosed,thefulltankcapacitywillnotbeavailablebutmore
dangerous,theinternalpressureofthereservoircouldrisewhenoilreturnscausingdamage
tooccurtothereservoir.
(11)Donotallowanamountofhydraulicoilgreaterthantheoiltankcapacity,toreturnintothe
reservoir.Ifanamountofoilexceedingthereservoircapacityisattemptedandtheairvalveis
open,oilwillleakoutoftheairvalve.However,iftheairvalveisclosed,theadditionaloil
capacitywillcauseapressurerisewithintheoiltankwhichcouldcausethetanktofracture
andamajoroilspilltooccur.
(12)Tightenthehexagoncapnutofthecoupler(S-1,2,5)byhandcompletelyuntiltheheadof
thenutisflushwiththelipofthehosecoupler.Cylinderswillnotoperatesmoothlyifagapis
leftasshowninthediagrambelow.Whenusingdoubleactingcylinders,shouldthepullor
retractsidecouplernotbecompletelyclosed,excessivepressurewillbegeneratedinthe
retractorpullsideofthecylinderjustbyanormalpressureonthepushcylinderside.This
willcausedamageeithertothecoupler,thecylinder,orthehighpressurehose,orallthree
andmayalsoresultinaseriousbodilyinjury.

(13)Doplacehandsorotherbodypartsnearareaswherehydraulicoilisbeingdispersedashigh
pressureoilmaypenetratetheskinandcauseseriousinjury.
(14)Ifoilenterstheeye,thoroughlyflushtheeyewithsterilewaterforatleast15minutesbefore
consultingadoctor.Also,ifoilcontactstheskin,washthoroughlywithwaterandsoap.
PullSide
PushSide
Gap
Good Not good
BagNut
BagNut

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(15)Donotgripthehighpressurebyhandwhenpressureisbeingexerted.Ifthepressurehose
breakswhileitisbeinggrippedbyhand,highpressurehydraulicoilwillbesuddenly
dispersed,andseriousinjurysuchasaholebeingopenedinoneʼshandmayoccur.
(16)Thehighpressurehoseisaconsumableitem.Evenifthehoseexteriorappearstobein
goodcondition,itispossibleinternaldamagesuchaspinholeshaveoccurred.Riken
recommendperiodicreplacementbaseduponhowfrequentlyhoseshavebeenused
combinedwithspecificapplicationconditions.Thismightmeanreplacingthehoseevenifthe
lifespanhasnotfullyexpired.
(17)Carefullychecktheincreaseinoiltemperatureandmotorheatingwhenthepumpisused
continuously,andbesuretofollowthetimeregulationforeachpump.
CAUTIONS
(1)Usegeneral-purposeISOVG32oilwiththeelectricpump(RIKENPOWEROIL).
Phosphoester,waterglycol,andw/oemulsionoilscannotbeused.
Theelectricpumpwillmalfunctionduetodeteriorationofpackingandcorrosionofthe
equipment.ContactRikenwhenusingthesekindsofunapprovedoils.
(2)Donotusethehighpressuresafetyvalveasareliefvalve.Installaseparatereliefvalveifitis
necessarytoperformcontinuousrelief.
(3)Whenanairreleasevalve(SV-1000)isinstalledandairreleaseisperformed,hydraulicoilwill
comeoutofthedischargeholesoftheairreleasevalve.Useaclothorothersuitablematerial
topreventdispersionoftheoil.
(4)Wasteoilgeneratedbytheelectricpumpisclassifiedasan“IndustrialWasteProduct”.
Consultyourlocalregulatoryagenciesanddisposeoftheoilthroughalicensedindustrial
wastecollectionagencyorindustrialwasteprocessingagency.

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TableofContents
1．O ver v i e w ............................................................................................................................... 5
2．Model Explanation..................................................................................................................... 5
3．Shared Specifications................................................................................................................ 6
4．Explanation of Components ...................................................................................................... 7
5．Safety Cautions for Usage ...................................................................................................... 16
6．Fixed Installation Method ........................................................................................................ 18
7．Preparation Before Use........................................................................................................... 20
8．Preventive Maintenance.......................................................................................................... 21
（１） Inspection of Items Before Operation............................................................................... 21
（２） Inspection of Items During Operation............................................................................... 21
（３） Inspection Items After Operation ...................................................................................... 21
（４） Changing Hydraulic Oil .................................................................................................... 21
9．Explanation of Pressure Switch............................................................................................... 22
10．Operating Method.................................................................................................................... 23
（１） ＳＭＰ－３０ＮＶ、ＳＭＰ－４０ＮＶ ............................................................................ 23
（２） ＳＭＰ－３０Ｂ、ＳＭＰ－４０Ｂ ................................................................................... 23
（３） ＳＭＰ－３０ＡＲ、ＳＭＰ－４０ＡＲ ............................................................................ 24
（４） ＳＭＰ－３０ＳＫ、ＳＭＰ－４０ＳＫ ............................................................................ 25
（５） ＳＭＰ－３０ＢＲ、ＳＭＰ－４０ＢＲ ............................................................................ 26
（６） ＳＭＰ－３０ＮＥ、ＳＭＰ－４０ＮＥ ............................................................................ 27
（７） ＳＭＰ－３０ＲＫ、ＳＭＰ－４０ＲＫ ............................................................................ 28
（８） ＳＭＰ－３０Ｃ、ＳＭＰ－４０Ｃ ................................................................................... 29
（９） ＳＭＰ－３０ＤＣＢ、ＳＭＰ－４０ＤＣＢ ..................................................................... 30
（１０） ＳＭＰ－３０ＤＶＨ、ＳＭＰ－４０ＤＶＨ ..................................................................... 31
（１１） ＳＭＰ－３０ＣＲ、ＳＭＰ－４０ＣＲ ............................................................................ 32
（１２） ＳＭＰ－３０ＳＷ、ＳＭＰ－４０ＳＷ ............................................................................ 33
（１３） ＳＭＰ－３０ＳＰ、ＳＭＰ－４０ＳＰ ............................................................................ 34
（１４） ＳＭＰ－３０ＳＬ、ＳＭＰ－４０ＳＬ ............................................................................ 35
11．Adjusting the High Pressure Safety Valve ............................................................................... 36
12．COMMON FAULTS AND SOLUTIONS ................................................................................... 37
13．Internal Structure Diagram ...................................................................................................... 38
14．Electrical Wiring, Terminal Connection List ............................................................................. 44
15．Handling the High Pressure Hose........................................................................................... 45

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１． Overview
（１） Thispumpisanelectricpumpforoperatingahydraulicactuator(cylinder,etc.).Thepump
featuresautomaticchangeoverbetweenhighpressureandlowpressure.Boththehigh
pressureandlowpressurepumpsinitiallyoperatesimultaneously.Oncethecircuit
pressurereaches1.5MPa,thelowpressuresafetyvalveactivatesandalloilflowfromthe
lowpressurepumpisthenreturnedtothetankviathelowpressuresafetyvalve.Fromthis
pressure(1.5MPa)onlyflowfromthehighpressurepumpproceedstothecylinder.
（２） Thepumpisnotdesignedforuseinareassubjecttowateringressorwhereitislikely
tobeexposedtoprecipitationorotherinclementweatherconditions.
（３） Useinareaswherethesurroundingtemperatureis0to40degreesCelsius.
（４） HydraulicequipmentusedwiththispumpshouldbeproductsmanufacturedbyRiken.
（５） Useonlywithahighpressurehose,orhighpressurepipeandconnectorsthathavea
maximumworkingpressureof70MPa.
（６） Donotuseinareaswhereseveredamagemayoccurshouldhydraulicoilleakor
escape.Specifically,donotusenearflammablematerialsduetotheriskofinjury
andfire.
（７） Thispumpisnotsparkresistantandthereforeshouldnotbeusedinhazardousareas.
（８） Donotmodifythispumpforusageotherthantheintendedusage.
２． ModelExplanation
SMP - 30 1 2 NV
BasicType
3WayValveManualOperationType
AutomaticReturnType
IntermediateStopType
3WayValveManualOperationwithRelief
Non-InertiaType
Return-HoldType
NV
B
AR
SK
BR
NE
RK
：
：
：
：
：
：
：
ForSingle-Acting
Cylinder
4WayValveManualOperationType
WithAutomaticFallingPreventionValve
PressureMaintenanceType
4WayValveManualOperationwithRelief
CenterBypassType
PPortBlockType
ShuttleValveLoadingType
C
DCB
DVH
CR
SW
SP
SL
：
：
：
：
：
：
：
ForDouble-Acting
Cylinder
CompactElectricHydraulicPump
30
40
Series
1：100V
2：200V
3：230V
MotorVoltage
2：2L
4：4.5L
6：6.5L
TankOil
Amount

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３． SharedSpecifications
・ＳＭＰ−３０＊＊
MaximumUsagePressure
DischargeAmount
Motor
PermittedVoltageFluctuation
SurroundingTemperature
OilTankCapacity
UsableOilAmount
HydraulicOilUsed
HighPressureSide 70MPa
LowPressureSide  1.5MPa
HighPressureSide 0.2L/min
LowPressureSide  2.0L/min
ClosedType,TypeEInsulation
RatedOutput250W
RatedOperationTime5minutes
Maximumcurrent(A)8.0at100V
4.0at200V
4.0at230V
RatedVoltage ±５％
0to40degreesCelsius
2.0L4.5L6.5L
1.8L4.0L6.0L
General-PurposeISOVG32Oil(HazardousMaterial:Group4,
PetroleumCategory4) (RIKENPOWEROIL)
MaximumUsagePressure
DischargeAmount
Motor
PermittedVoltageFluctuation
SurroundingTemperature
OilTankCapacity
UsableOilAmount
HydraulicOilUsed
HighPressureSide 70MPa
LowPressureSide  1.5MPa
HighPressureSide 0.4L/min
LowPressureSide  3.0L/min
ClosedType,TypeEInsulation
RatedOutput450W
RatedOperationTime5minutes
Maximumcurrent(A)12.0at100V
6.0at200V
5.2at230V
RatedVoltage ±５％
0to40degreesCelsius
2.0L4.5L6.5L
1.8L4.0L6.0L
General-PurposeISOVG32Oil(HazardousMaterial:Group4,
PetroleumCategory4) (RIKENPOWEROIL)
・ＳＭＰ−４０＊＊
Carefullychecktheincreaseinoiltemperatureandmotorheatingwhenthepumpis
usedcontinuously,andbesuretofollowthetimeregulationforeachpump.

-7-
４． ExplanationofComponents
（１）ＳＭＰ−３０ＮＶ、ＳＭＰ−４０ＮＶ
OFF
ON
Brush Motor
PressureGaugeAttachmentOpening
DischargeOutlet
(G1/2)
(Rc3/8)
HighPressureSafetyValve
OilTank
OperationSwitch
(SW-4A)
ShapeofPowerCordTip
100V
200V・230V
Opening
Airvalve
DrainOilOutlet
(Rc1/4)
PowerCord
IntakeOpening
OperationCordIntake
Opening
ReturnInlet
(Rc3/8)
HydraulicCircuitDiagram
H
L
M
Weight：14.5kg
(WhenUsing2Ltank)

-8-
OilTank
Reservoirforthestorageofhydraulicoil.
Motor
Motorfordrivingthepump.
OperationSwitch(SW-4A)
Manualswitchforstartingandstoppingthemotor.
Lengthofthecordis3meters.
PowerCord
Lengthofthecordis3meters.
100Vspecificationsisforinsertionplug(2P12A125Vwithearthclip).
200Vand230Vspecificationsareforsingleline(noplug).
(AnearthlineisindicatedE)
HighPressureSafetyValve
Avalvetolimitthemaximumpressureinordertopreventdamagetothemachineandpiping.
Setto73MPaatthetimeofshipping.
AirValve
Controlsadmissionandemissionofairinsidetheoiltanktocreateasmoothflowofhydraulicoil.
DischargeOilOutlet
Aportforthedischargeofhydraulicoilinsidetheoiltank.
ReturnInlet
Aportusedwhenreturninghydraulicoilfromtheexteriortotheoiltank.
DischargeOutlet
Aportfordischarginghydraulicoiltotheexterior.Diameteroftheportisequaltothetaper
screwRc3/8forusewithpiping.

-9-
（２）ＳＭＰ−３０Ｂ、ＳＭＰ−４０Ｂ
（３）ＳＭＰ−３０ＡＲ、ＳＭＰ−４０ＡＲ
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(SMV-33)
A3-wayvalvethatcontrolstheflowofhydraulicoilbymanualoperation.
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4A)
OFF
ON
PressureGaugeAttachmentOpening
(G1/2)
DirectionControlValve
(SMV-33)
(Rc3/8)
DischargeOutlet
PressureSwitch
(SPS-7A)
Weight：14.5kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M
DischargeOutlet
(Rc3/8)
(G1/2)
PressureGaugeAttachmentOpening
PressureSwitch
(SPS-7A)
OperationSwitch
(SW-4A)
ON
OFF
ShapeofPowerCordTip
100V
200V・230V
HydraulicCircuitDiagram
H
L
M
Weight：14.5kg
(WhenUsing2Ltank)

-10-
（４）ＳＭＰ−３０ＳＫ、ＳＭＰ−４０ＳＫ
（５）ＳＭＰ−３０ＢＲ、ＳＭＰ−４０ＢＲ
OperationSwitch(SW-4S)
Amanualswitchcontainingacrimpswitchforstartingandstoppingthemotorandapush
buttonswitchforreturning.
DirectionControlValve(SSL-2B)
Anelectromagneticvalveforopeningandclosingthereliefvalve.
DirectionControlValve(SMV-33)
A3-wayvalvethatcontrolstheflowofhydraulicoilbymanualoperation.
ExternalReliefValve(KRV-34)
Whenthepressureofthecircuitreachesthevaluesetforthevalve,thisvalvethat
maintainstheinternalpressureofthecircuitatthesetlevelbyreleasingaportion
orallofthehydraulicoiltothereturnside.
OperationSwitch
(SW-4A)
ON
OFF
ShapeofPowerCordTip
100V
200V・230V
DischargeOutlet
(Rc3/8)
(SMV-33)
DirectionControlValve
PressureGaugeAttachmentOpening
(G1/2)
(KRV-34)
ExternalReliefValve
(SSL-2B)
DirectionControlValve
(Rc3/8)
DischargeOutlet
(G1/2)
PressureGaugeAttachmentOpening
(SPS-7A)
PressureSwitch
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4S)
ON
OFF
RETURN
HydraulicCircuitDiagram
H
L
M
Weight：14.5kg
(WhenUsing2Ltank)
Weight：16kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M

-11-
（６）ＳＭＰ−３０ＮＥ、ＳＭＰ−４０ＮＥ
（７）ＳＭＰ−３０ＲＫ、ＳＭＰ−４０ＲＫ
OperationSwitch(SW-4WP)
Amanualswitchforstartingandstoppingthemotorandoperatingthedirectioncontrolvalve.
DirectionControlValve(KD-2C)2Places
A3-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoilbyusinga
combinationof2solenoidvalves.
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(KD-2C)
Ashut-offvalvethatusesolenoidoperationtocontrolthedirectionofflowof
hydraulicoil.
ShapeofPowerCordTip
100V
200V・230V
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4WP)
PUSH
PULL
OperationSwitch
(SW-4WP)
PUSH
PULL
DischargeOutlet
(Rc3/8)
(G1/2)
PressureGaugeAttachmentOpening
(KD-2C)
DirectionControlValve
(SPS-7A)
PressureSwitch
(G1/2)
PressureGaugeAttachmentOpening
(Rc3/8)
DischargeOutlet
(KD-2C)
DirectionControlValve
(SPS-7A)
PressureSwitch
HydraulicCircuitDiagram
Weight：16.5kg
(WhenUsing2Ltank)
A
H
L
M
HydraulicCircuitDiagram
Weight：19kg
(WhenUsing2Ltank)
H
L
M
A

-12-
（８）ＳＭＰ−３０Ｃ、ＳＭＰ−４０Ｃ
（９）ＳＭＰ−３０ＤＣＢ、ＳＭＰ−４０ＤＣＢ
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(SMV-43)
Amanual4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoil.
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(SCB-43B)
Amanual4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoil.
Containsbothabuilt-inpilotcheckvalveandabuilt-inexternalpilot-typecounterbalance
valveinportB.
ShapeofPowerCordTip
100V
200V・230V
ShapeofPowerCordTip
100V
200V・230V
(Rc3/8)
DischargeOutlet
(SMV-43)
DirectionControlValve
(G1/2)
PressureGaugeAttachmentOpening
(SPS-7A)
PressureSwitch
PortA
PortB
(G1/2)
PressureGaugeAttachmentOpening
DirectionControlValve
(SCB-43B)
PortA
DischargeOutlet
(Rc3/8)
PortB
(SPS-7A)
PressureSwitch
HydraulicCircuitDiagram
Weight：15.5kg
(WhenUsing2Ltank)
H
L
M
BA
HydraulicCircuitDiagram
Weight：18.5kg
(WhenUsing2Ltank)
H
L
M
BA
OperationSwitch
(SW-4A)
ON
OFF
OperationSwitch
(SW-4A)
ON
OFF

-13-
（10）ＳＭＰ−３０ＤＶＨ、ＳＭＰ−４０ＤＶＨ
（11）ＳＭＰ−３０ＣＲ、ＳＭＰ−４０ＣＲ
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(SMVH-43)
Amanual4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoil.
AcheckvalveisbuiltinsothatthepressureofportAandportBdoesnotfallwhen
replacingtheleverofthedirectioncontrolvalve(middleposition).
DirectionControlValve(SMV-43)
Amanual4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoil.
ExternalReliefValve
Whenthepressureofthecircuitreachesthevaluesetforthevalve,theinternalpressureof
thecircuitismaintainedatthesetlevelbyreleasingaportionorallofthehydraulicoiltothe
returnside.
PortA
DischargeOutlet
(Rc3/8)
PortB
(SMVH-43)
DirectionControlValve
(G1/2)
PressureGaugeAttachmentOpening
(SPS-7A)
PressureSwitch
PortA
DischargeOutlet
(Rc3/8)
PortB
ExternalReliefValve
(KRV-34)
(SMV-43)
DirectionControlValve
(G1/2)
PressureGaugeAttachmentOpening
OperationSwitch
(SW-4A)
ON
OFF
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4A)
ON
OFF
ShapeofPowerCordTip
100V
200V・230V
HydraulicCircuitDiagram
Weight：17kg
(WhenUsing2Ltank)
H
L
M
BA
Weight：17kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M
A B

-14-
（12）ＳＭＰ−３０ＳＷ、ＳＭＰ−４０ＳＷ
（13）ＳＭＰ−３０ＳＰ、ＳＭＰ−４０ＳＰ
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve:(KD-2S)1Place,(KD-3S,withcheckvalve)2Places
A4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoilbyusinga
combinationof3solenoidvalves.
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(KD-3C)2Places
Amanual4-way,3-positionvalvethatcontrolsthedirectionofflowofhydraulicoilbyusing
acombinationof2solenoidvalves.
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4WP)
PUSH
PULL
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4WP)
PUSH
PULL
(withcheck)
KD-3S
(Rc3/8)
PortA
DischargeOutlet
PortB
DirectionControlValve
(KD-2S)
(G1/2)
PressureGaugeAttachmentOpening
(SPS-7A)
PressureSwitch
(Rc3/8)
DischargeOutlet
PortA
PortB
(G1/2)
PressureGaugeAttachmentOpening
DirectionControlValve
(KD-3C)
(SPS-7A)
PressureSwitch
Weight：19kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M
B
A
Weight：20.5kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M
B
A

-15-
（14）ＳＭＰ−３０ＳＬ、ＳＭＰ−４０ＳＬ
HighPressureSwitch(SPS-7A)
Pressurecanbevariablyadjustedfrom10to70MPa.
Themotorstopswhenpressurerisestothesetpressurelevel.
DirectionControlValve(KD-3C)1Place
Composesa4-way,2-positionvalvewhenusedtogetherwiththeincludedvalveplate.
(Nameof4-way,2-locationvalve:KSLV-34)
ShapeofPowerCordTip
100V
200V・230V
OperationSwitch
(SW-4WP)
PUSH
PULL
DischargeOutlet
(Rc3/8)
PortA
PortB
(G1/2)
PressureGaugeAttachmentOpening
DirectionControlValve
(KD-3C)
(SPS-7A)
PressureSwitch
Weight：18.5kg
(WhenUsing2Ltank)
HydraulicCircuitDiagram
H
L
M
A
B

-16-
５． SafetyCautionsforUsage
Pumpswillnotgeneratepressureuntilthedischargeoutletplugisremoved.
Thereforebeforestarting,removetheplugfromtheoutletportandreplacewithhighpressure
hosesorcouplers.

Themaximumoutputpressureofthesepumpsis70MPa.
Forsafety,eachpumpisfactoryfittedwithahighpressuresafetyvalvewhichfunctionsasasafety
deviceandisadjustedtothemaximumoperatingpressureatthetimeofshipping.
Donotallowthesafetyvalvetobeadjustedtoalevelhigherthanthemaximumoperatingpressure.
Also,adjustthepressureswitchto70MPaorless.

Whenusinghydraulicequipmentwithamaximumworkingpressureofless
than70MPa,eitherlowerthesettingsofthehighpressuresafetyvalveoradjustthepressure
switchtoequaltheworkingpressureoftheattachedequipment.Bewarnedfailuretolower
pressuresettingscouldresultinequipmentdamage.Refertopage37“Adjustingthe
HighPressureSafetyValve”fortheprocedureregardingpressureadjustment.
Ensurepowerisoffbeforeconductingelectricallyrelatedmaintenanceor
inspection.
AnymodificationtothesepumpswithouttheconsentofRikencouldcause
damageaswellascompromisethesafetyoftheoperator.ContactRikenbeforeanymodification
arecarriedout.Rikenwillassumenoresponsibilityformodificationsperformedwithoutthe
consentofRiken.
Thepumpreservoirisfittedwithanairvalvewhichallowsairto
replace.Theoilasitisused.Ifthepumpisoperatedwiththeairvalveclosed,
thefulltankcapacitywillnotbeavailablebutmoredangerous,theinternal
pressureinthereservoircouldrisewhenoilreturns,causingdamagetooccur
tothereservoir.

Donotallowanamountofoilgreaterthantheoiltankcapacitytoreturn
intothereservoir.Iftheairvalveisopen,oilwillspilloutoftheoilbleedholeandanoilspillage
willoccurbutiftheairvalveisclosed,theextraoilcapacitywillcauseapressurerisewithinthe
reservoirwhichcouldcausethetanktofractureandamajoroilspilltooccur.
Thebasicpumpisa“dump”typeandwillnot“hold”pressureorload,once
themotorstops.Releasingthepressuresuddenlyfromthejackinguporwirestandoccursto
droppingorbouncingoftheloads,andithappenstopersonalinjury.Avarietyofvalvesare
availablefromRikentoprovidepressure(load)holdingwhenrequired.ContactRikenoryourlocal
salesagentforsuitablevalvestoprovideholdandreleasefunctions.
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
開
閉
CLOSE
OPEN

-17-
Carefullychecktheincreaseinoiltemperatureandmotorheatingwhenthepump
isusedcontinuously,andbesuretofollowthetimeregulationforeachpump.
Usegeneral-purposeISOVG32oilwiththeelectricpump(forexample,
RIKENPOWEROIL).Phosphoester,waterglycol,andw/oemulsionoilscannotbeused.
Theelectricpumpwillmalfunctionduetodeteriorationofpackingandcorrosionoftheequipment.
ContactRikenshoulditbenecessarytousethesetypesofunapprovedoils.
Donotusethehighpressuresafetyvalveasareliefvalve.Installaseparate
reliefvalveifitisnecessarytoperformcontinuouspressurereliefoperation.
Useoilthatisbetween5°and60°Celsius.
Useofoilthatexceeds60°Celsiuswillshortenthelifespanofthemicropumpandleadto
malfunction.
Themostprevalentreasonforpumpmalfunctionisinfiltrationofdirtandother
foreignobjects.Thepumpandotherauxiliaryequipmentshouldbekeptcleantopreventthe
infiltrationofsuchforeignobjects.
Hydraulicoilshouldbechangedatleastonceayear.
WARNING
CAUTION
CAUTION
CAUTION
CAUTION
CAUTION

-18-
６． FixedInstallationMethod
（１）Installthepumpinalevelandsafelocation.
(a)Utilizingusingthescrewholesonthebottomoftheoiltank.
(b)Removetherubberfromthelegs.
(c)Removetheadhesivefromthescrewarea.
（２） Ensurethatthepowervoltagematchesthevoltageofthemotor.
（３） ：EnsurethattheOperationSwitchisturned“off”beforeinsertingtheplug
ofthepowercord,otherwisewhentheOperationSwitchisturnedon,the
pistonofthecylindermayextendandpressuremaybeexerted.
（４） ：Topreventelectricshock,ensurethatearthwireisconnectedintotheplug.
（５）ConnectiontotheCylinder
Connectthepumpandthecylinderusingahighpressurehoseorahighpressurepipe.
（Ａ）WhenConnectingWithaHighPressureHose
Usethehighpressurehosebydirectlyscrewingitintothenormalpumpsideandusing
acouplertoconnectittothecylinderside.Ensurethatthetaperscrewareabeforefor
thepipingofthehighpressurehosehasbeenwrappedwithatapesealbeforescrewing
itin.
（Ｂ）WhenConnectingWithaHighPressurePipe
Refertopagesforsteelpipingorwedgeconnectorsinthegeneralcatalog,
orrequestaninstructionmanualforwedgeconnectorsfromasalesoffice.
Or,attachanairreleasevalvetothetipofthepipe.
4-M6(depth9)
Rubberforlegs
160
130
WARNING
WARNING
<*MethodforWrappingtheTapeSeal>
Leave1to2threadsexposedatthetipofthescrewforthemetal
fixture(R3/8)ononesideofthehighpressurehose.Wraptape
around1or2timesintheoppositedirectionofthescrewing
direction(counter-clockwise).
Screwtorqueis80to100Nm.
Ensurethatnotdirtorforeignobjectsareadheredtothecoupler
whenconnecting.
Wrappingdirection
HoseScrewingdirection
1or2threads

-19-
PullSide
PushSide
Gap
Good Not good
BagNut
BagNut
：WhenusingtheROC-13Seriesone-touchcoupler,aligntheringgroove
areaoftheROC-13Handwiththepositionofthenotch.Then,withtheringinapulled
backposition,pushuntilcontactismadewiththeROC-13Rcouplerandthenrelease
thering.Thecouplerwillconnectafterautomaticallylocking.Finally,completethe
connectionbyturningtheringtomovethepositionofthenotchandthegroovearea.
Also,ensurethatconnectionhasbeenperformedproperlybypullingtheROC-13H
couplerforwardandcheckingthatitdoesnotcomeloose.Whenusingdoubleacting
cylinders,shouldthepullorretractsidecouplerbenotcompletelyclosed,excessive
pressurewillbegeneratedintheretractorpullsideofthecylinderbyanormal
pressureonthepushcylinderside.Thiswillcausedamageeithertothecoupler,
thecylinder,orthehighpressurehose,orallthreeandmayalsoresultinaserious
bodilyinjury
Ring
Groovearea
Notch
ROC-13H ROC-13R
：Tightenthehexagoncapnutofthecoupler(S-1,2,5)byhandcompletely
untilthereisnogapbetweenthemaleandthefemalecouplersandtheedgeofthe
hexagonnutisflushwiththefaceofthemalecoupler.Thecylinderwillnotoperate
smoothlyifagapexistsasshowninthediagrambelow.Whenusingdoubleacting
cylinders,shouldthepullorretractsidecouplerbenotcompletelyclosed,excessive
pressurewillbegeneratedintheretractorpullsideofthecylinderbyanormalpressure
onthepushcylinderside.Thiswillcausedamageeithertothecoupler,thecylinder,
orthehighpressurehose,orallthreeandmayalsoresultinaseriousbodilyinjury.
WARNING
WARNING