Graco SoloTech ST6 Use and care manual

RepairandParts
SoloTech™ SoloTech™
SoloTech™Peristaltic Peristaltic PeristalticPumps Pumps Pumps3A3367K
EN
Electric Electric
Electric- - -powered powered poweredhose hose hosepump pump pumpfor for foruse use usein in in󰘱uid 󰘱uid 󰘱uidtransfer transfer transferand and andmetering metering meteringapplications. applications. applications.For For Forprofessional professional professionaluse use use
only. only.
only.Not Not Notapproved approved approvedfor for foruse use usein in inexplosive explosive explosiveatmospheres atmospheres atmospheresor or orhazardous hazardous hazardouslocations locations locationsunless unless unlessotherwise otherwise otherwisestated stated statedin in in
the the
themodel model modelapprovals approvals approvalssection. section. section.
Important Important
ImportantSafety Safety SafetyInstructions Instructions Instructions
Readallwarningsandinstructionsinthismanualandinyour
InstallationandOperationManualbeforeusingthisequipment.Save
allinstructions.
125psi(0.9MPa,9bar)MaximumFluid
WorkingPressure
Seepage6formodelinformation.
PROVENQUALITY.LEADINGTECHNOLOGY.

Contents Contents
Contents
RelatedManuals................................................2
Warnings...........................................................3
Con󰘰gurationNumberMatrix...............................6
Troubleshooting..................................................8
Repair................................................................10
PressureReliefProcedure............................10
BeforeYouStart..........................................10
DraintheLubricant.......................................10
RemovetheFrontCover..............................10
ReplacetheHose........................................11
ReplacetheRoller.......................................13
CompletePumpRepair................................14
Parts..................................................................19
KitsandAccessories...........................................28
TechnicalData...................................................29
Related Related
RelatedManuals Manuals Manuals
ManualNumberTitle
334859SoloTechPeristalticPumps,InstallationandOperation
23A3367K

Warnings
Warnings Warnings
Warnings
Thefollowingwarningsareforthesetup,use,grounding,maintenanceandrepairofthisequipment.The
exclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbolreferstoprocedure-speci󰘰c
risks.Whenthesesymbolsappearinthebodyofthismanualoronwarninglabels,referbacktothese
Warnings.Product-speci󰘰chazardsymbolsandwarningsnotcoveredinthissectionmayappearthroughout
thebodyofthismanualwhereapplicable.
WARNING WARNING
WARNING
FIRE FIRE
FIREAND AND ANDEXPLOSION EXPLOSION EXPLOSIONHAZARD HAZARD HAZARD
Flammablefumes,suchassolventandpaintfumes,inwork work
workarea area areacanigniteorexplode.Paint
orsolvent󰘱owingthroughtheequipmentcancausestaticsparking.Tohelpprevent󰘰reand
explosion:
•Useequipmentonlyinwellventilatedarea.
•Eliminateallignitionsources;suchaspilotlights,cigarettes,portableelectriclamps,and
plasticdropcloths(potentialstaticsparking).
•Groundallequipmentintheworkarea.SeeGrounding Grounding
Groundinginstructions.
•Keepworkareafreeofdebris,includingsolvent,ragsandgasoline.
•Donotplugorunplugpowercords,orturnpowerorlightswitchesonoroffwhen󰘱ammable
fumesarepresent.
•Useonlygroundedhoses.
•Stop Stop
Stopoperation operation operationimmediately immediately immediatelyifstaticsparkingoccursoryoufeelashock. . .Donotuse
equipmentuntilyouidentifyandcorrecttheproblem.
•Keepaworking󰘰reextinguisherintheworkarea.
ELECTRIC ELECTRIC
ELECTRICSHOCK SHOCK SHOCKHAZARD HAZARD HAZARD
Thisequipmentmustbegrounded.Impropergrounding,setup,orusageofthesystemcan
causeelectricshock.
•Turnoffandremovepoweratmainswitchbeforedisconnectinganycablesandbefore
servicingorinstallingequipment.
•Connectonlytogroundedpowersource.
•Allelectricalwiringmustbedonebyaquali󰘰edelectricianandcomplywithalllocalcodes
andregulations.
•Wait󰘰veminutesforcapacitordischargebeforeopeningequipment.
•AlwaysusetherecommendedamountofgenuineGracohoselubricanttominimizebuild-up
ofstaticelectricity.
3A3367K3

Warnings
WARNING WARNING
WARNING
PRESSURIZED PRESSURIZED
PRESSURIZEDEQUIPMENT EQUIPMENT EQUIPMENTHAZARD HAZARD HAZARD
Fluidfromtheequipment,leaks,orrupturedcomponentscansplashintheeyesoronskin
andcauseseriousinjury.
•FollowthePressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedurewhenyoustopspraying/dispensingandbefore
cleaning,checking,orservicingequipment.
•Tightenall󰘱uidconnectionsbeforeoperatingtheequipment.
•Checkhoses,tubes,andcouplingsdaily.Replacewornordamagedpartsimmediately.
EQUIPMENT EQUIPMENT
EQUIPMENTMISUSE MISUSE MISUSEHAZARD HAZARD HAZARD
Misusecancausedeathorseriousinjury.
•Donotoperatetheunitwhenfatiguedorunderthein󰘱uenceofdrugsoralcohol.
•Donotexceedthemaximumworkingpressureortemperatureratingofthelowestrated
systemcomponent.SeeTechnical Technical
TechnicalData Data Datainallequipmentmanuals.
•Use󰘱uidsandsolventsthatarecompatiblewithequipmentwettedparts.SeeTechnical Technical
TechnicalData Data Data
inallequipmentmanuals.Read󰘱uidandsolventmanufacturer’swarnings.Forcomplete
informationaboutyourmaterial,requestSafetyDataSheet(SDS)fromdistributororretailer.
•TurnoffallequipmentandfollowthePressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedurewhenequipmentisnotinuse.
•Checkequipmentdaily.Repairorreplacewornordamagedpartsimmediatelywithgenuine
manufacturer’sreplacementpartsonly.
•Donotalterormodifyequipment.Alterationsormodi󰘰cationsmayvoidagencyapprovals
andcreatesafetyhazards.
•Makesureallequipmentisratedandapprovedfortheenvironmentinwhichyouareusingit.
•Useequipmentonlyforitsintendedpurpose.Callyourdistributorforinformation.
•Routehosesandcablesawayfromtraf󰘰careas,sharpedges,movingparts,andhotsurfaces.
•Donotkinkoroverbendhosesorusehosestopullequipment.
•Keepchildrenandanimalsawayfromworkarea.
•Complywithallapplicablesafetyregulations.
THERMAL THERMAL
THERMALEXPANSION EXPANSION EXPANSIONHAZARD HAZARD HAZARD
Fluidssubjectedtoheatincon󰘰nedspaces,includinghoses,cancreatearapidriseinpressure
duetothethermalexpansion.Over-pressurizationcanresultinequipmentruptureandserious
injury.
•Openavalvetorelievethe󰘱uidexpansionduringheating.
•Replacehosesproactivelyatregularintervalsbasedonyouroperatingconditions.
43A3367K

Warnings
WARNING WARNING
WARNING
MOVING MOVING
MOVINGPARTS PARTS PARTSHAZARD HAZARD HAZARD
Movingpartscanpinch,cutoramputate󰘰ngersandotherbodyparts.
•Keepclearofmovingparts.
•Donotoperateequipmentwithprotectiveguardsorcoversremoved.
•Pressurizedequipmentcanstartwithoutwarning.Beforechecking,moving,orservicing
equipment,followthePressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedureanddisconnectallpowersources.
ENTANGLEMENT ENTANGLEMENT
ENTANGLEMENTHAZARD HAZARD HAZARD
Rotatingpartscancauseseriousinjury.
•Keepclearofmovingparts.
•Donotoperateequipmentwithprotectiveguardsorcoversremoved.
•Donotwearlooseclothing,jewelryorlonghairwhileoperatingequipment.
•Equipmentcanstartwithoutwarning.Beforechecking,movingorservicingequipment,follow
thePressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedureanddisconnectallpowersources.
TOXIC TOXIC
TOXICFLUID FLUID FLUIDOR OR ORFUMES FUMES FUMESHAZARD HAZARD HAZARD
Toxic󰘱uidsorfumescancauseseriousinjuryordeathifsplashedintheeyesoronskin,
inhaled,orswallowed.
•ReadtheSafetyDataSheet(SDS)toknowthespeci󰘰chazardsofthe󰘱uidsyouareusing.
•Storehazardous󰘱uidinapprovedcontainers,anddisposeofitaccordingtoapplicable
guidelines.
BURN BURN
BURNHAZARD HAZARD HAZARD
Equipmentsurfacesand󰘱uidthatisheatedcanbecomeveryhotduringoperation.Toavoid
severeburns:
•Donottouchhot󰘱uidorequipment.
PERSONAL PERSONAL
PERSONALPROTECTIVE PROTECTIVE PROTECTIVEEQUIPMENT EQUIPMENT EQUIPMENT
Wearappropriateprotectiveequipmentwhenintheworkareatohelppreventseriousinjury,
includingeyeinjury,hearingloss,inhalationoftoxicfumes,andburns.Protectiveequipment
includesbutisnotlimitedto:
•Protectiveeyewear,andhearingprotection.
•Respirators,protectiveclothing,andglovesasrecommendedbythe󰘱uidandsolvent
manufacturer.
3A3367K5

CongurationNumberMatrix
Con󰘰guration Con󰘰guration
Con󰘰gurationNumber Number NumberMatrix Matrix Matrix
Checktheidenti󰘰cationplate(ID)fortheCon󰘰gurationNumberofyourpump.Usethefollowingmatrixto
de󰘰nethecomponentsofyourpump.
Somecombinationsarenotpossible.Checkwithyourlocalsupplier.
Sample Sample
SampleCon󰘰guration Con󰘰guration Con󰘰gurationNumber: Number: Number:ST23 ST23
ST23MAC MAC MACNR NR NRSS SS SSA1 A1 A1A1 A1 A10 0 0
ST ST
ST23 23 23MAC MAC MACNR NR
NRSS SS
SSA1 A1 A1A1 A1 A10 0 0
Pump
Model
HoseSizeMotorHose
Material
Barb
Material
RollerHousingOptions
Model Model
ModelHose Hose
HoseSize Size SizeMotor/Gear Motor/Gear Motor/GearReducer Reducer Reducer
ST ST
ST6 6 66mmHAC HAC HAC†ACmotorwithhigh-speedgearreducer
10 10
1010mmMAC MAC MAC†ACmotorwithmedium-speedgearreducer
23 23
2323mmLAC LAC LAC†ACmotorwithlow-speedgearreducer
25 25
2525mmMPM MPM
MPM†BrushlessDC(BLDC)motorwithgearreducer
26 26
2626mmHC HC HC†✦High-speedgearreducer,nomotor,IEC
30 30
3030mmHN HN
HN†✦High-speedgearreducer,nomotor,NEMA
32 32
3232mmMC MC MC†✦Medium-speedgearreducer,nomotor,IEC
MN MN
MN†✦Medium-speedgearreducer,nomotor,NEMA
LC LC
LC†✦Low-speedgearreducer,nomotor,IEC
LN LN
LN†✦Low-speedgearreducer,nomotor,NEMA
0 0
0Nomotororgearreducer
Hose Hose
HoseMaterial/Color Material/Color Material/ColorBarb Barb
BarbMaterial Material MaterialRoller Roller RollerHousing Housing HousingOptions Options
Options
BN BN
BNNitrile(NBR),
YellowHS HS
HSHastelloyA1 A1 A1AluminumA1 A1 A1Aluminum0 0 0None
CS CS
CSChlorosulfonated
Polyethylene
(CSM),Orange
PV PV
PVPVDF
EP EP
EPEthylenepropylene
dienemonomar
(EPDM),Blue
SS SS
SS*Stainless
Steel
FG FG
FG‡■*FoodGradeNitrile
(White)
NR NR
NRNaturalRubber,
Black
*FoodGradepumpsshipwithstainlesssteeltri-clamphosebarbs.
63A3367K

CongurationNumberMatrix
Approvals Approvals
Approvals
✦Thesemodelsarecerti󰘰ed:
II2GExhIIBT4Gb
†Thesemodelsarecerti󰘰ed:
‡Thesemodelscomplywith:
EC1935/2004
■FoodGrade󰘱uidcontactparts:ThesematerialsareFDA-compliantandmeettheUnitedStatesCode
ofFederalRegulations(CFR)Title21.
3A3367K7

Troubleshooting
Troubleshooting Troubleshooting
Troubleshooting
NOTE: NOTE:
NOTE:
•FollowthePressureReliefProcedure,page10.
•Checkallpossibleremediesbeforedisassemblingthepump.
SeetheOperationManual(334859)fortroubleshootingorerrorinformationontheGracoMotorControl.
Problem Problem
ProblemCause Cause
CauseSolution Solution Solution
Inletoroutletpipediameteristoo
small.
Increasethepipesizeoradd
pulsationdampeners.
Pumpspeedistoohigh.Reducethespeedofthepump.
Inletoroutletconnectionsarenot
properlyanchored.
Securethepiping.
Hammeringinpiping.
Inletoroutletpressuresaretoo
high.
Addpulsationdampeners.
Lubricantlevelislow.Addhoselubricanttotheproper
level.
Improperlubricantisbeingused.UseonlygenuineGracoglycerin
hoselubricantforlowtemperature
operation.
Pumped󰘱uidtemperatureistoo
high.
ConsultyourGracodistributorfor
maximumtemperaturelimitsof
yourpumpandhosematerial.
Highpumptemperature.
Pumpspeedistoohighorthe
pumpisundersized.
Reducethepumpspeedorswitch
toalargerpump.
Outletlineisblocked.Clearanyobstructionsintheoutlet
line.
Pipediameterisnarroweddueto
settledsolids.
Flush/removeasrequired.
Highoutletpressure.
Viscosityorspeci󰘰cgravityof
pumped󰘱uidistoohigh.
ConsultyourGracodistributorfor
suitableoperatingconditionsfor
yourpump.
83A3367K

Troubleshooting
Problem Problem
ProblemCause Cause
CauseSolution Solution Solution
Thehosehasfailed.Replacewithanewhoseand
lubricant.
Inletlineisblocked.Clearanyobstructionsintheinlet
line.
Inletlineistoolongortoosmall.Trytolocatethepumpasnear
tothe󰘱uidsourceaspossible.
Oversizetheinletpipingwhen
possible.
Lowinletpressure.
Viscosityorspeci󰘰cgravityof
pumped󰘱uidistoohigh.
ConsultyourGracodistributorfor
suitableoperatingconditionsfor
yourpump.
Thehosehasfailed.Replacewithanewhoseand
lubricant.
Low󰘱ow.
Thebackpressureistoohighfor
thecombinationof󰘱uidviscosity
andcyclerate.
Reducebackpressureand/or
increaseyourcyclerate.
Hoseisincompatiblewiththe󰘱uid
beingpumped.
ConsultyourGracodistributorto
seeifyouhavethecorrecthose
foryourapplication.
Hosehasfailedduetonormal
wear.
Replace.
Excessivepulsationshave
weakenedthehose.
Ifyoupumpisequippedwitha
pulsationdampener,adjustits
pressure.Ifyoudonothavea
dampener,consultyourGraco
distributor.
Outletpressureistoohigh.Checkitemslistedin“Highoutlet
pressure.”Runningthepump
againstaclosedvalve,evenfora
shortamountoftime,maydamage
thehose.
Poorhoselife.
Solidshavesettledinthehose.Flushthepumpandhosepriorto
turningthepumpoff.
Thecoverboltsarenottight
enough.
Refertotorquespeci󰘰cationsin
InstalltheFrontCover,page18.
Hoselubricantisleakingfromthe
frontcover.
Thecovergasketiswornor
damaged.
Replace.
Hoselubricantisleakingfromthe
hosebarbarea.
Gasketsaremissingorworn.Replace.
Hosefailedbecauseitwrapped
aroundtheroller.
Pumpwasoperatedagainsta
closedoutletvalveorblockedline.
Replacehose.Checkpressure
reliefsystem.Checkthatvalves
areopen.Clearanyblockages.
3A3367K9

Repair
Repair Repair
Repair
Pressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedure
FollowthePressureRelief
Procedurewheneveryouseethis
symbol.
Thisequipmentstayspressurizeduntilpressure
isrelievedmanually.Tohelppreventserious
injuryfrompressurized󰘱uid,suchassplashing
intheeyesoronskin,followthePressureRelief
Procedurewhenyoustoppumpingandbeforeyou
clean,check,orservicetheequipment.
1.Removepowerfromthesystem.
2.Openthedispensingvalve,ifused.
3.Openthe󰘱uiddrainvalvetorelieve󰘱uid
pressure.Haveacontainerreadytocatchthe
drainage.
Before Before
BeforeYou You YouStart Start Start
1.Flushthepump.
2.FollowthePressureReliefProcedure,page10.
3.Disconnectpowertothepump.
4.Makesurethepumpiselectricallyisolated.
Unexpectedoperationofthepumpcancause
seriousinjury.Removethefancoveronlyafter
themotorhasbeenlockedout.
Drain Drain
Drainthe the theLubricant Lubricant Lubricant
1.Holdapailunderthedrainplug(29)andunscrew
theplugtodrainthelubricant.Disposeofthe
lubricantproperly.Takecare,asthelubricant
maybecontaminatedbythepumped󰘱uid.
2.Removetheventplug(30)and󰘱ushthepump
housingwithacompatiblesolvent.
Figure1PumpDrain(29)andVent(30)
Remove Remove
Removethe the theFront Front FrontCover Cover Cover
1.Drainthelubricantpertheinstructionsinthe
previoussection.
2.SeeFigure2,page10.Useawrenchtoremove
thebolts(45)andwashers(52,53,ifpresent)
thatholdthefrontcover(16),removingthe
topscrewandwasher(ifpresent)last.Take
thecoveroffthepump.Ifthecoverisstuck,
gentlybreakthegasketsealwitha󰘱at-headed
screwdriverbetweenthecoverandthehousing.
PumpModelWrenchsize
ST6,ST10,ST23,and
ST25FG
10mm
ST2613mm
ST30andST3217mm
3.Removethefrontcovergasket(15).
103A3367K

Repair
Replace Replace
Replacethe the theHose Hose Hose
Remove Remove
Removethe the theHose Hose Hose
1.FollowthePressureReliefProcedure,page10.
2.Followthesteps
underDraintheLubricant,page10,and
RemovetheFrontCover,page10.
3.Therollermustbemovedtoremovethehose.
Followthedirectionsforyourpumptomovethe
rollerbetweenthe4-and8-o'clockpositions
whilepullingonthehoseatthebottomuntilthe
hoseisfreefromtheroller.
a.AC AC
ACModels: Models: Models:Loosenthescrewsandremove
themotorfancover(FC).Turnthefanby
handtomovetheroller.
NOTE: NOTE:
NOTE:LowRPMpumpsandhighratio
gearboxesmayrequiremanyturnsofthe
motorfantomovetheroller.
b.BLDC BLDC
BLDCModels: Models: Models:
i.Inserttheshaftsockettool(59)intothe
backofthegearbox.
ii.Useasocketwrenchtomovetheroller.
iii.Removethesocketfromthegearbox.
4.Useawrenchtoremovethefournuts(35)from
thehosebarbassemblyononeport.Pullthe
hosesoitextendsabout2–3in.(51–76mm)
outofthepump.Removethenuts(35)fromthe
barbassemblyontheotherport,andpullthe
hosesoitextendsabout2–3in.(51–76mm)out
ofthepump.
PumpModelWrenchsize
ST6,ST10,ST23,and
ST25FG
10mm
ST26,ST30,and
ST32
13mm
5.Usea7mmwrenchora󰘱at-headedscrewdriver
toloosenthehoseclamps(24).
6.Pullthebarbassemblyoffofthehoseonone
side,thenremove,thegasket(25)andclamp
(24).
7.Graspthehose(14)fromtheinsideofthepump
housingandpullitintothepumphousingand
outofthefront.Drainthehosecontentsintoa
bucket.
8.Removethesecondbarbassembly,thegasket
(25)andtheclamp(24).
9.Pulltheotherendofthehoseintothepump
housingandoutofthefront.
10.Removeandsafelydiscardtheusedhoseper
yourfacility’swastedisposalpolicy.Wipeclean
theinsideofthepumphousing.
NOTE: NOTE:
NOTE:Tocontinuewithdisassembly,see
RemovetheRoller,page13.Ifyouarereplacingthe
hose,continuewiththenextsection.
Figure2RemoveorInstalltheHose
3A3367K11

Repair
Install Install
Installthe the theHose Hose Hose
1.Installagasket(25)ontoeachhosebarb(28)so
thatitmateswiththeplate(26).
2.Insertoneendofthehosethroughtheleft
housingportandextendthehose2–3in.(51–76
mm)beyondthepumphousing(1).
3.Orientthehoseclampsotheclamphousing
alignswiththerecessedcavityinthepump
housing.Slidethehoseclampoverthehose.
Slideonthebarbassembly.
4.Tightentheclamp.Torqueto25ft-lb(33.9N•m)
plusonefullturn.Or,tightentheclampsothat
theclampis󰘱ushwiththeouterhosediameter.
5.Pushthehoseandclampintothepumphousing.
6.Usenuts(35)toattachthehosebarbassembly
tothepump.Torquetothevaluespeci󰘰edinthe
table.
PumpModelTorque
ST6,ST10,ST23,and
ST25FG
8ft-lb(10.8N•m)
ST26,ST30,and
ST32
18ft-lb(24.4N•m)
7.Loopthehose360degreesandinsertthesecond
endthroughtheoppositesideport.
8.Repeatsteps3–6.
9.Therollermustbemovedtoinstallthehose.
Followthedirectionsforyourpumptomovethe
roller.Startatthe4o’clockpositionandmove
therollertothe8o’clockpositionwhilepushing
thehoseinatthebottom.Besurethehoseis
pasttheplaneofthecovergasket.
a.AC AC
ACModels: Models: Models:Loosenthescrewsandremove
themotorfancover.Turnthefanbyhandto
movetheroller.
NOTE: NOTE:
NOTE:LowRPMpumpsandhighratio
gearboxesmayrequiremanyturnsofthe
motorfantomovetheroller.
b.BLDC BLDC
BLDCModels: Models: Models:
i.Inserttheshaftsockettool(29)intothe
backofthegearbox.
ii.Useasocketwrenchtomovetheroller.
10.AC AC
ACModels: Models: Models:Reinstallthemotorfancover.BLDC BLDC BLDC
Models: Models:
Models:Removethesocketfromthegearbox.
11.Followthestepsunder
InstalltheFrontCover,page18.
123A3367K

Repair
Replace Replace
Replacethe the theRoller Roller Roller
Thebearingsintherolleraresealedand
non-serviceable.Ifthebearingsfail,replacetheroller
assembly.
Remove Remove
Removethe the theRoller Roller Roller
1.FollowthestepsinRemovetheHose,page11.
2.Usea󰘱at-headedscrewdriverontheinside
diametertopryouttherotaryshaftseals(13a
and13b).Discardtheseals.
3.Useexternalsnapringplierstoremovetheroller
retainingring(12)fromthefrontoftheeccentric
shaft(9).
4.Pulltheroller(11)offtheshaft(9).
5.Inspecttheinsideandoutsidediameterofthe
roller(11),andreplaceitifwornordamaged.
NOTE: NOTE:
NOTE:Tocontinuewithdisassembly,see
RemovetheEccentricShaft,page14.Ifyouare
replacingtheroller,continuewiththenextsection.
Install Install
Installthe the theRoller Roller Roller
1.Lubricatetheeccentricshaft(9)withhose
lubricant.Slidetheroller(11)ontotheshaft.
NOTE: NOTE:
NOTE:Therollerhasanorientationgrooveon
oneendthatmustfaceoutofthepumphousing.
2.Installarollerretainingring(12)andtheouter
shaftseals(13a,13b).Thelipsofthesealsmust
faceout out
outfromthecenteroftheroller.Installthe
sealssotheyare󰘱ushwiththerolleredge.Ifyou
arereplacingtheroller,seal13bispress󰘰tinto
therolleratthefactory.
3.Turntheroller(11)byhandtoverifythatitturns
freelyontheshaft(9).
4.Followthestepsunder
InstalltheFrontCover,page18.
Figure3RemoveorInstalltheRoller
KEY KEY
KEY
1
Theorientationgrooveononeendoftherollermustfaceoutofthepumphousing.
2
Lipsmustfaceout out
outfromthecenteroftheroller.
3A3367K13

Repair
Complete Complete
CompletePump Pump PumpRepair Repair Repair
Disassembly Disassembly
Disassembly
Completepumpdisassemblyisnecessaryonlyto
replacethemainshaftassembly,forexampleinthe
caseofafailedbearing.
Remove Remove
Removethe the theEccentric Eccentric EccentricShaft Shaft Shaft
1.FollowthestepsinRemovetheHose,page11.
2.FollowthestepsinRemovetheRoller,page13.
3.Useexternalsnapringplierstoremovethe
eccentricshaftretainingring(10)fromthemotor
outputshaft(6).
4.Removetheeccentricshaft(9)fromthemotor
outputshaft(6).Be Be
Besure sure sureto to toretain retain retainthe the theeccentric eccentric eccentric
shaft shaft
shaftkey key key(56). (56). (56).
NOTE: NOTE:
NOTE:Youmayneedtouseapullerto
disengagetheeccentricshaftfromthemotor
outputshaft.
PumpModelBoltSize
ST6andST106mm
ST23,ST25FG,ST26,
ST30,andST32
8mm
Remove Remove
Removethe the theMotor Motor MotorOutput Output OutputShaft Shaft Shaft
SeeFigure4onpage15.
1.Removethefourscrews(31)andwashers(21)
thatholdthegearboxandmotorassembly(4)to
thepumphousing(1).
2.Removetheplasticplugsonthebackofthe
motortorevealthreadedmetricholesforagear
puller.Inspectthecenteropening.Ifitcontains
asnapring,removeit.
3.Useagearpullertoremovethegearboxand
motorassembly.Be Be
Besure sure sureto to toretain retain retainthe the themotor motor motor
output output
outputshaft shaft shaftkey key key(57). (57). (57).
NOTE: NOTE:
NOTE:Formotorandgearboxrepairinformation,
contactSEW-Eurodrive.
4.Usea󰘱atheadscrewdriverontheinside
diametertoremovethefrontrotaryshaftseal(8).
Discardtheseal.
5.Usealargeinternalsnapringplierstoremove
theretainingring(7)fromthepumphousing(1).
6.Gentlytapthegearboxendoftheshaft(6)with
arubbermallettodrivetheshaftoutthroughthe
frontofthepumphousing(1).
7.Removeanddiscardtherearrotaryshaftseal(5).
143A3367K

Repair
Reassembly Reassembly
Reassembly
Clean Clean
Cleanand and andInspect Inspect InspectAll All AllParts Parts Parts
NOTICE NOTICE
NOTICE
UseonlygenuineGracoreplacementparts.
Non-standardpartswillvoidyourwarrantyand
maydamageyourequipment.
•Discardallusedseals,gasketsandwornparts.
•Ensurethatallnewandexistingpartsareclean
andundamaged.
•Thoroughlycleanallpartswithacompatible
solventandinspectfordamageorwear.Replace
allgaskets,washers,wornpartsandhardwareas
necessary.
•Inspecttheouterdiameterofthepumproller.Ifthe
surfacehasbeenworn,replacetheroller.
•Inspectthebearingsonthemotoroutputshaft
(6).Ifthebearingsareworn,replacetheshaft
assembly.
•Inspecttheshaftandbearingboreinthepump
housing(1).Ensureitisround,withoutgroovesor
othersignsofwear,andfreeofdirt,󰘰lings,orother
debris.Adirtyordamagedbearingborewillgreatly
reducethelifeofthebearings.
•Inspectallmetalpartsforsignsofwearorcracks.
Replaceallwornparts.
NOTICE NOTICE
NOTICE
Thepumphousingisaluminum.Tohelpprevent
galling,inspecttheboltthreadsforforeignmaterial
andcleanorreplaceifnecessary.
Install Install
Installthe the theMotor Motor MotorOutput Output OutputShaft Shaft Shaft
1.Inspectthebearingsandmakesurethatall
rotatefreelyandareseatedagainsttheshoulder
oftheshaft(6).
2.Installtheeccentricshaftkey(56).
3.Coattheouterracesoftheshaftbearingsandthe
innerdiameterofthehousingwithlithium-based
grease.Makesurethereisnodirtordebrison
eitherthebearingsorthehousing.
4.Inserttheshaft(6)intothepumphousing(1)from
thefront.Makesurethatthebearingsengage
theopening󰘱ushandstraight.Ifnecessary,
lightlytaptherollerendoftheshaftwitharubber
malletuntiltheshaftis󰘰rmlyseatedinthepump
housing.
Alternative Alternative
AlternativeMethod Method Method:Propthehousingsothefront
isfacingup.Inserttheshaftfromthetopdown.
NOTICE NOTICE
NOTICE
Donotforcetheshaftandbearingsintothe
pumphousing.Thismaycausedamagetothe
bearingsorthehousing.
5.Installthebearingretainingring(7)infrontofthe
outerbearing.
3A3367K15

Repair
Install Install
Installthe the theSeals Seals Seals
1.Cleanthesurfacesthatthesealswillcontact.
2.Greasethepumpwithlithium-basedgrease.
Removetheplug(33)fromthepumphousing
andreplacewithazerk󰘰tting(1/8–27npt,not
included).Addgreaseuntilitpassesthrough
theouterbearingoftheshaft.Thisprovidesa
visualreferenceoftheproperamountofgrease.
Removethezerk󰘰tting.
3.Pressanewseal(5)ontothepumpendofthe
shaft(6)andanewseal(8)intotheboreatthe
frontofthepumphousing(1).Thelipsofthe
sealsmustfacetowardtheshaftbearings.Do
notinstallthesealspasttheplaneofthehousing.
NOTE: NOTE:
NOTE:Ifthesealsareinstalledtoodeep,they
maycauseexcessivefriction.
4.Turntheshaftbyhandacoupleoftimestobe
surethattheshaftrotatessmoothly.
5.Reinstalltheplug(33).
Figure4RemoveorInstalltheMotorOutputShaftandEccentricShaft
Key Key
Key
1
Lipsofthefrontrotaryshaftseal(8)mustfacetowardtheshaftbearings.
2
Lipsoftherearrotaryshaftseal(5)mustfaceintothepumphousing.
3
Lubricatewithlithium-basedgrease.
4
Lubricatewithanti-seizecompound
163A3367K

Repair
Install Install
Installthe the theMotor Motor Motorand and andGearbox Gearbox Gearbox
1.Useananti-seizecompoundtolubricatethe
motoroutputshaft(6)andthekeyway.
2.Installthemotoroutputshaftkey(57).
3.Removetheplasticcaponthebackofthe
gearbox,ifoneispresent.
4.Slidethemotorandgearboxassembly(4)onto
theshaft(6).Securetheassemblytothepump
housing(1)withthefourscrews(31)andwashers
(21).Torquetothevalueshowninthetable.
Model Model
ModelTorque Torque Torque
ST6,ST10,
ST23,and
ST25FG
8ft-lb(10.8N•m)
ST2618ft-lb(24.4N•m)
ST30and
ST32
32ft-lb(43.4N•m)
Install Install
Installthe the theEccentric Eccentric EccentricShaft Shaft Shaft
1.Verifythattheeccentricshaftkey(56)isinstalled.
2.Useananti-seizecompoundtolubricatethe
eccentricshaft(9).Slidetheeccentricshaftover
theendofthemotoroutputshaft(6).Useasoft
rodandaplasticmallettotaplightlyontheround
baseuntiltheeccentricshaftisfullyseatedon
themotoroutputshaft.
3.Securetheeccentricshaft(9)withtheretaining
ring(10).
4.FollowthestepsunderInstalltheRoller,page13,
andInstalltheHose,page12.
3A3367K17

Repair
Install Install
Installthe the theFront Front FrontCover Cover Cover
1.Cleananydebrisfromthegasketmatingsurfaces
onthefrontcover(16)andthepumphousing(1).
NOTE: NOTE:
NOTE:Thepumphousingandfrontcovermust
befreeofdirt,debrisandresiduetoensurea
leak-freeseal.
2.Lineuptheholesinthegasket(15)withtheholes
inthecover(16).Placethegasketonthecover.
3.Lineupthefrontcover(16)andgasket(15)
withthepumphousing(1).ST6 ST6
ST6, , ,ST10 ST10 ST10, , ,ST23 ST23 ST23, , ,
and and
andST25FG ST25FG ST25FG: : :Installthe󰘱angeheadbolts(45)
ontothefrontcover(16).ST26 ST26
ST26, , ,ST30 ST30 ST30, , ,and and and
ST32 ST32
ST32: : :Installthebolts(45),with󰘱atwashers
(53)andlockwashers(52),ontothefrontcover
(16).Torquetheboltsevenlyandoppositelyto
thetorqueshowninthetable.
Model Model
ModelTorque Torque Torque
ST6,ST10,
ST23,and
ST25FG
8ft-lb(10.8N•m)
ST2618ft-lb(24.4N•m)
ST30and
ST32
32ft-lb(43.4N•m)
Lubricate Lubricate
Lubricatethe the thePump Pump Pump
Toreducetheriskof󰘰reorexplosionthatcanresult
fromstaticsparkingorchemicalincompatibility:
•Verifythatthehoselubricantiscompatiblewith
yourpumped󰘱uid.Donotuseglycerinhose
lubricantifpumpingstrongoxidizeroracids.
•Keepthepumpproperly󰘰lledwithgenuine
Gracohoselubricant.
NOTICE NOTICE
NOTICE
Theventanddrainportthreadsarealuminum.To
helppreventgalling,inspecttheboltthreadsfor
foreignmaterialandcleanorreplaceifnecessary.
1.Wrapthedrainplug(29)threadswithPTFEtape
andinstalltheplugintothebottomcoverport.Be
surethatitistighttopreventleakageoflubricant.
2.Useafunnelwitha󰘱exiblespouttoaddhose
lubricantthroughtheventport.Thelubricant
levelmustcoverthebottomoftheroller.
NOTE: NOTE:
NOTE:Ifyouareusingtheoptionalleaksensor,
over󰘰llingmaycausenuisancetrippingofthe
sensor.
Seethefollowingtableforthecorrectamount
oflubricantforyourpump.Pre-measuringthe
correctamountwillhelppreventover󰘰lling.
Pump Pump
Pump
Model Model
ModelAmount Amount Amountof of ofHose Hose HoseLubricant Lubricant Lubricant(approximate) (approximate) (approximate)
ST6
ST10
4.5󰘱oz(130ml)
ST23
ST25FG
12󰘱oz(350ml)
ST2627󰘱oz(800ml)
ST30
ST32
34󰘱oz(1000ml)
3.Wraptheventplug(30)threadswithPTFEtape
andscrewitintotheventport.
HoseLubricant(orderseparately)
Glycerin Glycerin
GlycerinSilicone Silicone SiliconeVolume Volume
Volume
24K691———Quart(0.95l)
24Y920———HalfGallon(1.89l)
24K69324K686Gallon(3.79l)
24M43524M43455Gallons(208l)
183A3367K

Parts
Parts Parts
Parts
3A3367K19

Parts
ST6, ST6,
ST6,ST10, ST10, ST10,and and andST10FG ST10FG ST10FGParts Parts Parts
ST6, ST6,
ST6,ST10, ST10, ST10,and and andST10FG ST10FG ST10FGParts Parts Parts
Ref Ref
RefPart Part
PartDescription Description DescriptionQty Qty
Qty
1———HOUSING,pump1
217C220FOOT,mounting,left1
317C221FOOT,mounting,right1
MOTOR,AC
25A365HAC;0.75hp,19.50:1
25A366MAC;0.50hp,48.00:1
25A367LAC;0.25hp,157.43:1
1 4
24Z038MPM;BLDC,1.0hp1
5‡———SEAL,motorshaft,rear1
6‡———MOTORSHAFT,
subassembly
1
7‡———RING,retaining,internal,
80mm
1
8‡———SEAL,motorshaft,front1
924Y837ECCENTRICSHAFT
(driverassembly),kit;
includesref.10
1
10———RING,retaining,external,
27mm;includedwithref.9
1
1124Y789ROLLERASSEMBLY,kit,
includesref.12and13
1
12———RING,retaining,external,
25mm
1
13a,
13b
24Y845SEALS,eccentricshaft,
frontandback
1ea.
HOSE,6mm,forST6
19C737NaturalRubber,black
19C739CSM,orange
19C740EPDM,blue
19C738Nitrile,yellow
1
HOSE,10mm,forST10
24Y797NaturalRubber,black
24Y798CSM,orange
24Y799EPDM,blue
24Y800Nitrile,yellow
1
14
19D234HOSE,10mm,FoodGrade
Nitrile,forST10FG
1
15*†———GASKET,frontcover1
FRONTCOVER,kit
24Y829forST6
24Y898forST10
16*
19C942forST10FG
1
17*121110O-RING2
ST6, ST6,
ST6,ST10, ST10, ST10,and and andST10FG ST10FG ST10FGParts Parts Parts
Ref Ref
RefPart Part
PartDescription Description DescriptionQty Qty
Qty
18*107249O-RING1
19*17C529HANDLE,cover2
20*17C521SIGHTGLASS1
21117018WASHER10
22*124164SCREW,M6-1.0x25mm,
stainlesssteel
8
23*124313SCREW,M6-1x16mm,
stainlesssteel
6
2424Y825CLAMP,hose,size122
25†———GASKET,hoseplate2
2617B693PLATE,hosebarb2
27n17B690FLANGE,hosebarb2
BARB,kit,forST6;includes
o-ring(ref.44)
19C907Stainlesssteel
19C918PVDF
2
BARB,kit,forST10;
includeso-ring(ref.44)
24Y813Stainlesssteel
24Y814PVDF
24Y815Hastelloy
2
28
19D236BARB,kit,forST10FG;
includeso-ring(ref.44)
2
29*16K274PLUG,hex,3/4npt1
30*16K281VENT,breather,muf󰘱er;
3/4npt
1
31114670SCREW,cap,hexhead,
M6-1x16mm
10
32s16K630LABEL,warning1
33110208PLUG,pipe,headless1
34———STUD,M6,fastener8
3517G152NUT,lock,hex,󰘱ange,8
42s15J075LABEL,warning1
43∆LUBRICANT1
44103255O-RING;includedwithref.
28
2
45*17G170SCREW,󰘱angehead,
M6–1x20mm
8
5424Y445GRACOMOTOR
CONTROL;usedonMPM
(BLDC)pumps
1
5515Y051CABLE,M12,8pin,m/f,
3.0m(9.8ft);usedonMPM
(BLDC)pumps
1
203A3367K