VERDER VERDERAIR VA-EH50 Use and care manual

Repair/Parts
VERDERAIR VERDERAIR
VERDERAIRElectric Electric Electric- - -Operated Operated Operated
Diaphragm Diaphragm
DiaphragmPumps Pumps Pumps859.0773
Rev.C
EN
Models Models
ModelsVA VA VA- - -EH50, EH50, EH50,VA VA VA- - -E2H52, E2H52, E2H52,VA VA VA- - -E2H53, E2H53, E2H53,VA VA VA- - -E2H54 E2H54 E2H54
2 2
2- - -inch, inch, inch,3 3 3- - -inch, inch, inch,and and and4 4 4- - -inch inch inchpumps pumps pumpswith with withelectric electric electricdrive drive drivefor for for󰘱uid 󰘱uid 󰘱uidtransfer transfer transferapplications. applications. applications.Not Not Notapproved approved approvedfor for foruse use use
in in
inexplosive explosive explosiveatmospheres atmospheres atmospheresor or orhazardous hazardous hazardous(classi󰘰ed) (classi󰘰ed) (classi󰘰ed)locations locations locationsunless unless unlessotherwise otherwise otherwisestated. stated. stated.See See SeeApprovals Approvals Approvals
page page
pagefor for formore more moreinformation. information. information.For For Forprofessional professional professionaluse use useonly. only. only.
Important Important
ImportantSafety Safety SafetyInstructions Instructions Instructions
Readallwarningsandinstructionsinthismanualandinyour
Operationmanualbeforeusingtheequipment.Save Save
Savethese these these
instructions. instructions.
instructions.
SeeTechnicalDataonpage38for
modelinformation,includingMaximum
WorkingPressure.
Seepage10forapprovals.

Contents Contents
Contents
RelatedManuals................................................2
Warnings...........................................................3
PumpMatrixforVA-EH50FoodGrade
Pumps..................................................6
PumpMatrixforVA-E2H52,VA-E2H53,and
VA-E2H54HighSanitaryPumps............8
Approvals...........................................................10
Troubleshooting..................................................11
Repair................................................................13
PressureReliefProcedure............................13
CheckValveRepair.....................................13
StandardDiaphragmRepair.........................16
OvermoldedDiaphragmRepair.....................18
CenterSectionRepair..................................20
InstallCompressorKits.................................25
ReplacetheCompressor..............................26
Parts..................................................................27
KitsandAccessories....................................37
TechnicalData...................................................39
Related Related
RelatedManuals Manuals Manuals
ManualNumberTitle
859.0769VERDERAIRElectric-OperatedDiaphragmPumps,ModelsVA-EH50,VA-E2H52,
VA-E253,VA-E2H54,Operation
2859.0773

Warnings
Warnings Warnings
Warnings
Thefollowingwarningsareforthesetup,use,grounding,maintenance,andrepairofthisequipment.The
exclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbolsrefertoprocedure-speci󰘰c
risks.Whenthesesymbolsappearinthebodyofthismanualoronwarninglabels,referbacktothese
Warnings.Product-speci󰘰chazardsymbolsandwarningsnotcoveredinthissectionmayappearthroughout
thebodyofthismanualwhereapplicable.
DANGER
SEVERE SEVERE
SEVEREELECTRIC ELECTRIC ELECTRICSHOCK SHOCK SHOCKHAZARD HAZARD HAZARD
Thisequipmentcanbepoweredbymorethan240V.Contactwiththisvoltagewill
causedeathorseriousinjury.
•Turnoffanddisconnectpoweratmainswitchbeforedisconnectinganycablesand
beforeservicingequipment.
•Thisequipmentmustbegrounded.Connectonlytogroundedpowersource.
•Allelectricalwiringmustbedonebyaquali󰘰edelectricianandcomplywithalllocal
codesandregulations.
WARNING
FIRE FIRE
FIREAND AND ANDEXPLOSION EXPLOSION EXPLOSIONHAZARD HAZARD HAZARD
Flammablefumes,suchassolvent,inwork work
workarea area areacanigniteorexplode.Solvent󰘱owingthrough
theequipmentcancausestaticsparking.Tohelpprevent󰘰reandexplosion:
•Useequipmentonlyinwellventilatedarea.
•Eliminateallignitionsources;suchaspilotlights,cigarettes,portableelectriclamps,and
plasticdropcloths(potentialstaticsparking).
•Groundallequipmentintheworkarea.SeeGrounding Grounding
Groundinginstructions.
•Keepworkareafreeofdebris,includingsolvent,ragsandgasoline.
•Donotplugorunplugpowercords,orturnpowerorlightswitchesonoroffwhen󰘱ammable
fumesarepresent.
•Useonlygroundedlines.
•Stop Stop
Stopoperation operation operationimmediately immediately immediatelyifstaticsparkingoccursoryoufeelashock. . .Donotuse
equipmentuntilyouidentifyandcorrecttheproblem.
•Keepaworking󰘰reextinguisherintheworkarea.
Staticchargemaybuilduponplasticpartsduringcleaningandcoulddischargeandignite
󰘱ammablevapors.Tohelpprevent󰘰reandexplosion:
•Cleanplasticpartsonlyinwellventilatedarea.
•Donotcleanwithadrycloth.
859.07733

Warnings
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.
•Check󰘱uidlines,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.
•Route󰘱uidlinesandcablesawayfromtraf󰘰careas,sharpedges,movingparts,andhot
surfaces.
•Donotkinkoroverbend󰘱uidlinesoruse󰘱uidlinestopullequipment.
•Keepchildrenandanimalsawayfromworkarea.
•Complywithallapplicablesafetyregulations.
PRESSURIZED PRESSURIZED
PRESSURIZEDALUMINUM ALUMINUM ALUMINUMPARTS PARTS PARTSHAZARD HAZARD HAZARD
Useof󰘱uidsthatareincompatiblewithaluminuminpressurizedequipmentcancauseserious
chemicalreactionandequipmentrupture.Failuretofollowthiswarningcanresultindeath,
seriousinjury,orpropertydamage.
•Donotuse1,1,1-trichloroethane,methylenechloride,otherhalogenatedhydrocarbon
solventsor󰘱uidscontainingsuchsolvents.
•Donotusechlorinebleach.
•Manyother󰘱uidsmaycontainchemicalsthatcanreactwithaluminum.Contactyourmaterial
supplierforcompatibility.
4859.0773

Warnings
WARNING
THERMAL THERMAL
THERMALEXPANSION EXPANSION EXPANSIONHAZARD HAZARD HAZARD
Fluidssubjectedtoheatincon󰘰nedspaces,includinglines,cancreatearapidriseinpressure
duetothethermalexpansion.Over-pressurizationcanresultinequipmentruptureandserious
injury.
•Openavalvetorelievethe󰘱uidexpansionduringheating.
•Replacelinesproactivelyatregularintervalsbasedonyouroperatingconditions.
PLASTIC PLASTIC
PLASTICPARTS PARTS PARTSCLEANING CLEANING CLEANINGSOLVENT SOLVENT SOLVENTHAZARD HAZARD HAZARD
Manysolventscandegradeplasticpartsandcausethemtofail,whichcouldcauseserious
injuryorpropertydamage.
•Useonlycompatiblesolventstocleanplasticstructuralorpressure-containingparts.
•SeeTechnical Technical
TechnicalSpeci󰘰cations Speci󰘰cations Speci󰘰cationsinallequipmentmanualsformaterialsofconstruction.Consult
thesolventmanufacturerforinformationandrecommendationsaboutcompatibility.
•SeeTechnical Technical
TechnicalData Data Datainthisandallotherequipmentinstructionmanuals.Read󰘱uidand
solventmanufacturer’sSafetyDataSheet(SDS)andrecommendations.
TOXIC TOXIC
TOXICFLUID FLUID FLUIDOR OR ORFUMES FUMES FUMESHAZARD HAZARD HAZARD
Toxic󰘱uidsorfumescancauseseriousinjuryordeathifsplashedintheeyesoronskin,
inhaled,orswallowed.
•ReadSafetyDataSheet(SDS)toknowthespeci󰘰chazardsofthe󰘱uidsyouareusing.
•Storehazardous󰘱uidinapprovedcontainers,anddisposeofitaccordingtoapplicable
guidelines.
BURN BURN
BURNHAZARD HAZARD HAZARD
Equipmentsurfacesand󰘱uidthat’sheatedcanbecomeveryhotduringoperation.Toavoid
severeburns:
•Donottouchhot󰘱uidorequipment.
PERSONAL PERSONAL
PERSONALPROTECTIVE PROTECTIVE PROTECTIVEEQUIPMENT EQUIPMENT EQUIPMENT
Wearappropriateprotectiveequipmentwhenintheworkareatohelppreventseriousinjury,
includingeyeinjury,hearingloss,inhalationoftoxicfumes,andburns.Thisprotective
equipmentincludesbutisnotlimitedto:
•Protectiveeyewear,andhearingprotection.
•Respirators,protectiveclothing,andglovesasrecommendedbythe󰘱uidandsolvent
manufacturer.
859.07735

PumpMatrixforVA-EH50FoodGradePumps
Pump Pump
PumpMatrix Matrix Matrixfor for forVA-EH50 VA-EH50 VA-EH50Food Food FoodGrade Grade GradePumps Pumps Pumps
Checktheidenti󰘰cationplate(ID)forthe
Con󰘰gurationNumberofyourpump.Usethe
followingmatrixtode󰘰nethecomponentsofyour
pump.
Whenyoureceiveyourpump,recordthe8character
partnumberfoundontheshippingbox(e.g.,
811.0018):
_____________
Alsorecordthecon󰘰gurationnumberonthepumpID
platetoassistyouwhenorderingreplacementparts:
_____________________________________
Sample Sample
SampleCon󰘰guration Con󰘰guration Con󰘰gurationNumber: Number: Number:VA VA
VA- - -EH50SA EH50SA EH50SA- - -STSPTFT6ACFD21 STSPTFT6ACFD21 STSPTFT6ACFD21
VA VA
VA- - -EH EH EH50 50
50S S SA A
AST ST
STSP SP SPTF TF
TFT6 T6
T6AC AC ACFD FD
FD21 21
21
Pump
Model
Pump
Size
Wetted
Parts
Center
Section
SeatsBallsDiaphragmsConnectionsDriveOptionsCerti󰘰cations
NOTE: NOTE:
NOTE:Somecombinationsarenotpossible.Pleasecheckwithyourlocalsupplierorthepumpcon󰘰gurator
onwww.verderair.com.
Pump Pump
PumpPump Pump
PumpSize Size SizeWetted Wetted
WettedParts Parts PartsCenter Center
CenterSection Section Section
Material Material
MaterialSeat Seat SeatMaterial Material Material
Ball Ball
BallMaterial Material Material
VA VA
VA- - -EH EH EH50 50
5050mmS S SStainlessSteel
A A
AAluminumSE SE
SEStainlessSteelwith
EPDMo-rings
NW NW
NWPolychloro-
prene
Weighted
S S
SStainless
SteelST ST
STStainlessSteelwith
PTFEo-ringsSP SP
SPSantoprene
TF TF
TFPTFE
Continuedonnextpage
6859.0773

PumpMatrixforVA-EH50FoodGradePumps
Diaphragm Diaphragm
DiaphragmMaterial Material MaterialConnections Connections
ConnectionsDrive Drive
DriveOptions Options
OptionsCerti󰘰cations Certi󰘰cations Certi󰘰cations
SP SP
SPSantopreneD6 D6 D6StainlessSteel,
DIN11851,65
mm
A1 A1
A1StandardACInduction
Motor(HighSpeed
GearRatio)with120V
AirCompressor
FD FD
FDFood
Grade21 21
21EN10204
type2.1
TF TF
TFPTFE/EPDM
2-PieceT6 T6
T6StainlessSteel,
tri-clamp,2.5in.A2 A2
A2StandardACInduction
Motor(HighSpeed
GearRatio)with220V
AirCompressor
31 31
31EN10204
type3.1
AC AC
ACStandardACInduction
Motor(HighSpeed
GearRatio)
AF AF
AF★FlameproofAC
InductionMotor(High
SpeedGearRatio)
AX AX
AX✦ATEXACInduction
Motor(HighSpeed
GearRatio)
B1 B1
B1StandardACInduction
Motor(MediumSpeed
GearRatio)with120V
Compressor
B2 B2
B2StandardACInduction
Motor(MediumSpeed
GearRatio)with220V
Compressor
BC BC
BCStandardACInduction
Motor(MediumSpeed
GearRatio)
BF BF
BF★FlameproofAC
InductionMotor
(MediumSpeedGear
Ratio)
BX BX
BX✦ATEXACInduction
Motor(MediumSpeed
GearRatio)
C1 C1
C1StandardACInduction
Motor(LowSpeed
GearRatio)with120V
Compressor
C2 C2
C2StandardACInduction
Motor(LowSpeed
GearRatio)with220V
Compressor
CC CC
CCStandardACInduction
Motor(LowSpeed
GearRatio)
CF CF
CF★FlameproofAC
InductionMotor(Low
SpeedGearRatio)
CX CX
CX✦ATEXACInduction
Motor(LowSpeed
GearRatio)
WG WG
WG✚NoMotor,NoGearbox
859.07737

PumpMatrixforVA-E2H52,VA-E2H53,andVA-E2H54HighSanitaryPumps
Pump Pump
PumpMatrix Matrix Matrixfor for forVA-E2H52, VA-E2H52, VA-E2H52,VA-E2H53, VA-E2H53, VA-E2H53,and and andVA-E2H54 VA-E2H54 VA-E2H54
High High
HighSanitary Sanitary SanitaryPumps Pumps Pumps
Checktheidenti󰘰cationplate(ID)forthe
Con󰘰gurationNumberofyourpump.Usethe
followingmatrixtode󰘰nethecomponentsofyour
pump.
Whenyoureceiveyourpump,recordthe8character
partnumberfoundontheshippingbox(e.g.,
811.0018):
_____________
Alsorecordthecon󰘰gurationnumberonthepumpID
platetoassistyouwhenorderingreplacementparts:
_____________________________________
Sample Sample
SampleCon󰘰guration Con󰘰guration Con󰘰gurationNumber: Number: Number:VA VA
VA- - -E2H52XS E2H52XS E2H52XS- - -STTFTST5AXSB21 STTFTST5AXSB21 STTFTST5AXSB21
VA VA
VA- - -E2H E2H E2H52 52 52X X
XS S
SST ST STTF TF
TFTS TS
TST5 T5
T5AX AX AXSB SB
SB21 21 21
Pump
Model
Pump
Size
Wetted
Parts
Center
Section
SeatsChecksDiaphragmsConnectionsDriveOptionsCerti󰘰cations
NOTE: NOTE:
NOTE:Somecombinationsarenotpossible.Pleasecheckwithyourlocalsupplierorthepumpcon󰘰gurator
onwww.verderair.com.
Pump Pump
PumpPump Pump
PumpSize Size SizeWetted Wetted
WettedParts Parts PartsCenter Center
CenterSection Section Section
Material Material
MaterialSeat Seat SeatMaterial Material Material
Check Check
CheckMaterial Material Material
VA VA
VA- - -E2H E2H E2H52 52 5250mm
(2-inch
port)
X X
XHighSanitary,
3-A0.8μmS S
SStainless
SteelSE SE
SEStainlessSteelwith
EPDMseals
BN BN
BNBuna-NBall
53 53
5350mm
(3-inch
port)
Y Y
YPharmaceutical
0.5μmST ST
STStainlessSteelwith
TF-EPsealsNW NW
NWPolychloro-
prene
Weighted
Ball
54 54
5450mm
(4-inch
port)SB SB
SBStainlessSteelwith
Buna-Nseals
FL FL
FLStainless
Steel
Flapper
SV SV
SVStainlessSteelwith
FKMsealsSP SP
SPSantoprene
Ball
TF TF
TFPTFEBall
VT VT
VTFKMBall
Continuedonnextpage
8859.0773

PumpMatrixforVA-E2H52,VA-E2H53,andVA-E2H54HighSanitaryPumps
Diaphragm Diaphragm
DiaphragmMaterial Material MaterialConnections Connections
ConnectionsDrive Drive
DriveOptions Options
OptionsCerti󰘰cations Certi󰘰cations Certi󰘰cations
BN BN
BNBuna-ND5 D5 D5StainlessSteel,
DIN11851,50
mm
A1 A1
A1StandardACInduction
Motor(HighSpeed
GearRatio)with120V
AirCompressor
3A 3A
3A3-A21 21 21EN10204
type2.1
EO EO
EOEPDM
OvermoldedT5 T5
T5StainlessSteel,
tri-clamp,2.0in.A2 A2
A2StandardACInduction
Motor(HighSpeed
GearRatio)with220V
AirCompressor
SB SB
SBHygienic
ball31 31
31EN10204
type3.1
SP SP
SPSantopreneD8 D8 D8StainlessSteel,
DIN11851,80
mm
AC AC
ACStandardACInduction
Motor(HighSpeed
GearRatio)
SF SF
SFHygienic
󰘱apper
TS TS
TSPTFE/Santo-
prene2-PieceT8 T8
T8StainlessSteel,
tri-clamp,3.0in.AF AF
AF★FlameproofAC
InductionMotor(High
SpeedGearRatio)
VT VT
VTFKMD1 D1
D1StainlessSteel,
DIN11851,100
mm
AX AX
AX✦ATEXACInduction
Motor(HighSpeed
GearRatio)
T1 T1
T1StainlessSteel,
tri-clamp,4.0in.B1 B1
B1StandardACInduction
Motor(MediumSpeed
GearRatio)with120V
Compressor
B2 B2
B2StandardACInduction
Motor(MediumSpeed
GearRatio)with220V
Compressor
BC BC
BCStandardACInduction
Motor(MediumSpeed
GearRatio)
BF BF
BF★FlameproofAC
InductionMotor
(MediumSpeedGear
Ratio)
BX BX
BX✦ATEXACInduction
Motor(MediumSpeed
GearRatio)
C1 C1
C1StandardACInduction
Motor(LowSpeed
GearRatio)with120V
Compressor
C2 C2
C2StandardACInduction
Motor(LowSpeed
GearRatio)with220V
Compressor
CC CC
CCStandardACInduction
Motor(LowSpeed
GearRatio)
CF CF
CF★FlameproofAC
InductionMotor(Low
SpeedGearRatio)
CX CX
CX✦ATEXACInduction
Motor(LowSpeed
GearRatio)
WG WG
WG✚NoMotor,NoGearbox
859.07739

Approvals
Approvals Approvals
Approvals
Approvals Approvals
Approvals
✦PumpswithmotorcodeXareapprovedto:
II2G
ExhdIIBT3Gb
✚PumpswithmotorcodeWGareapprovedto:
II2G
ExhIIBT3Gb
★MotorscodedFareapprovedto:
ClassI,Div1,GroupD,T3B
ClassII,Div1,GroupF&G,T3B
DiaphragmmaterialscodedEO,TF,orTS
combinedwithcheckmaterialscodedFLor
TFcomplywith:
EC1935/2004
AllModels(exceptgearboxandcompressor
code1,ormotorcodeF)areapprovedto:
DiaphragmmaterialscodedEOorTS
combinedwithcheckmaterialscodedFLor
TFcomplywith:
ClassVI
All󰘱uidcontactmaterialsareFDA-compliant
andmeettheUnitedStatesCodeofFederal
Regulations(CFR)
10859.0773

Troubleshooting
Troubleshooting Troubleshooting
Troubleshooting
•FollowthePressureReliefProcedure,page13,
beforecheckingorservicingtheequipment.
•Checkallpossibleproblemsandcausesbefore
disassembly.
Problem Problem
ProblemCause Cause CauseSolution Solution Solution
Pumpisrunningtoofast,causing
cavitationbeforeprime.
Slowdownthecontroller(VFD)
Centersectionhasnoairpressure,
orairpressureistoolow.
Applyairpressuretocentersection
peryourapplicationrequirements.
Checkvalveballisseverelywornor
wedgedinseatormanifold.
Replacetheballandseat.
Thepumphasinsuf󰘰cientsuction
pressure.
Increasethesuctionpressure.See
theOperationmanual.
Seatisseverelyworn.Replacetheballandseat.
Outletorinletisrestricted.Removetherestriction.
Inlet󰘰ttingsormanifoldsareloose.Tighten.
Pumpcyclesbutwillnot
primeand/orpump.
Manifoldo-ringsaredamaged.Replaceo-rings.
Thecentersectionis
excessivelyhot.
Thedriveshaftisbroken.Replace.
Checkvalveballs,seats,oro-rings
areworn.
Replace.
Manifoldscrewsor󰘱uidcover
screwsareloose.
Tighten.
Pumpfailstohold󰘱uid
pressureatstall.
DiaphragmshaftboltislooseTighten.
Motororcontrolleriswired
improperly.
Wirepermanual. Pumpwillnotcycle.
Theleakdetector(ifinstalled)has
tripped.
Checkdiaphragmforruptureor
incorrectinstallation.Repairor
replace.
Themotorisoperating,
butthepumpwillnot
cycle.
Thejawcouplingbetweenthe
motorandgearboxisnotconnected
properly.
Checktheconnection.
Suctionlineisclogged.Inspect;clear.
Checkballsarestickyorleaking.Cleanorreplace.
Reducedpump
performance.
Diaphragm(orbackup)ruptured.Replace.
Pumpmakesunusual
noises.
Pumpisoperatingnearoratstall
pressure.
Adjustairpressureorslowthepump
speed.
859.077311

Troubleshooting
Problem Problem
ProblemCause Cause CauseSolution Solution Solution
A󰘰ttingisloose.Tighten.Inspectthreadsealant.
Looseordamagedo-ringsorshaft
seal.
Replace.
Airconsumptionishigher
thanexpected.
Diaphragm(orbackup)ruptured.Replace.
Suctionlineisloose.Tighten.
Diaphragm(orbackup)ruptured.Replace.
Loosemanifolds,damagedseatsor
o-rings.
Tightenmanifoldboltsorreplace
seatsoro-rings.
Airbubblesin󰘱uid.
Loosediaphragmshaftbolt.Tighten.
Loosemanifoldscrewsor󰘱uidcover
screws.
Tighten.
Pumpleaks󰘱uid
externallyfromjoints.
Manifoldo-ringswornout.Replaceo-rings.
AGFCIhastripped.Removethecontrollerfromthe
GFCIcircuit.
Supplypowerispoor.Determineand󰘰xthesourceofthe
powerproblem.
Thecontrollerfaultsor
shutsdown.
Operationalparametersare
exceeded.
Seeperformancechart;ensure
pumpisoperatingwithinthe
continuousdutyrange.
Inletcheckclogged/improperly
installed
Removedebris/installproperly Excessivemotor
regenerationfaultfrom
VFDBrokendiaphragmboltReplacebolt
NOTE: NOTE:
NOTE:ForproblemswithaVariableFrequencyDevice(VFD),seeyourVFDmanual.
12859.0773

Repair
Repair Repair
Repair
NOTE: NOTE:
NOTE:Whenreassembling󰘱uidsectioncomponents,
looselyassembleinitiallytoensureacceptable
alignment.Onceallcomponentsareinplace,tighten
allclamps.
Pressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedure
FollowthePressureReliefProcedure
wheneveryouseethissymbol.
Thisequipmentstayspressurizeduntilpressureis
manuallyrelieved.Tohelppreventseriousinjury
frompressurized󰘱uid,suchassplashing󰘱uid,
followthePressureReliefProcedurewhenyou
stopdispensingandbeforecleaning,checking,or
servicingtheequipment.
1.Turnoffthepumpanddisconnectpowertothe
system.
2.Closethemasterairvalve(J)toshutofftheair
tothepump.
3.Openthe󰘱uiddrainvalve(L)torelieve󰘱uid
pressure.Haveacontainerreadytocatchthe
drainage.
4.Closethepumpairinletport(E)onthepneumatic
enclosure.
Check Check
CheckValve Valve ValveRepair Repair Repair
Tools Tools
ToolsRequired Required Required
•O-ringpick
NOTE: NOTE:
NOTE:Kitsareavailablefornewcheckvalveballs
andseatsinarangeofmaterials.O-ringkitsalso
areavailable.
NOTE: NOTE:
NOTE:Toensureproperseatingofthecheckballs,
alwaysreplacetheseatswhenreplacingtheballs.
Also,replacetheo-ringseverytimethemanifoldis
removed.
Disassemble Disassemble
Disassemblethe the theCheck Check CheckValve Valve Valve
1.FollowthePressureReliefProcedure,page13.
Disconnectpowerfromthemotor.Disconnectall
󰘱uidandairlines.
2.Removetheclamps(31)holdingtheoutlet
manifold(3)tothe󰘱uidcovers(2),thenremove
theoutletmanifold.
3.Removetheballcheckvalveassemblies:
a.OntheVA-EH50,removetheseats(6),balls
(7),ando-rings(8).
b.OntheVA-E2H52,VA-E2H53,VA-E2H54,
removetheballstops(28),balls(7),and
gaskets(8a).
4.Turnthepumpoverandremovetheinlet
manifold(4).Removetheseats(6),balls(7),
ando-rings(8).
5.Tocontinuewithdiaphragmdisassembly,see
DisassembletheStandardDiaphragms,page16.
Reassemble Reassemble
Reassemblethe the theCheck Check CheckValve Valve Valve
1.Cleanallpartsandinspectforwearordamage.
Replacepartsasneeded.
2.Reassembleinthereverseorder,followingall
notesintheillustration.Puttheinletmanifoldon
󰘰rst.Besuretheballchecksandmanifoldsare
assembledexactly exactly
exactlyasshown.Ifpresentonthe
󰘱uidcovers(2),thearrows(A)must must
mustpointtoward
theoutletmanifold(3).For󰘱uidcoverswithout
arrows,thetallestopeninginthe󰘱uidcovermust must
must
beattachedtotheoutletmanifold.
859.077313

Repair
1
Arrow(A)mustpointtowardoutlet
manifold.
2
Radiusedseatingsurfacemustfacethe
ball(7).LargechamferonO.D.mustface
o-ring.
14859.0773

Repair
Disassemble Disassemble
Disassemblethe the theFlapper Flapper FlapperCheck Check CheckValve Valve Valve
1.FollowthePressureReliefProcedure,page13.
Disconnectpowerfromthemotor.Disconnectall
󰘱uidandairlines.
2.Removetheclamps(31)holdingtheoutlet
manifold(3)tothe󰘱uidcovers,thenremovethe
outletmanifold.
3.Removethe󰘱appers(7a),andgaskets(8a).
4.Repeatstepstoremovetheinletmanifold(4).
Removethe󰘱appers(7a),andgaskets(8a).
5.Tocontinuewithdiaphragmdisassembly,see
DisassembletheStandardDiaphragms,page16.
Reassemble Reassemble
Reassemblethe the theFlapper Flapper FlapperCheck Check CheckValve Valve Valve
1.Cleanallpartsandinspectforwearordamage.
Replacepartsasneeded.
2.Reassembleinthereversedisassemblyorder.
Puttheinletmanifoldon󰘰rst.Besurethe󰘱apper
checksandmanifoldsareassembledexactly exactly
exactlyas
shown.
NOTE: NOTE:
NOTE:Installthe󰘱appervalves(7a)withthetext
sidefacingtheseat.
859.077315

Repair
Standard Standard
StandardDiaphragm Diaphragm DiaphragmRepair Repair Repair
Tools Tools
ToolsRequired Required Required
•Torquewrench
•10mmhexkeywrench
•28mmopenendwrench
•O-ringpick
Disassemble Disassemble
Disassemblethe the theStandard Standard StandardDiaphragms Diaphragms Diaphragms
NOTE: NOTE:
NOTE:Diaphragmkitsareavailableinarangeof
materialsandstyles.SeePartssection.
1.FollowthePressureReliefProcedure,page13.
Disconnectpowerfromthemotor.Disconnectall
󰘱uidandairlines.
2.Removethemanifoldsanddisassemble
theballcheckvalvesasexplainedin
CheckValveRepair,page13.
3.Removetheclamps(30)fromthe󰘱uidcovers,
thenpullthe󰘱uidcoversoffofthepump.
4.Toremovethediaphragms,thepistonmust
bemovedfullytooneside.Ifthepumpisnot
attachedtothegearbox,turntheshaftbyhand
tomovethepiston.Ifthepumpisstillattached
tothegearbox,loosenthescrewsandremove
thefancover.Turnthefanbyhandtorotatethe
shafttoshiftthepistontooneside.
TIP: TIP:
TIP:Theaircoverhas2holes(H),oneatthe
9o’clockpositionandanotheratthe3o’clock
position.Usepin(131),placedineitherhole
(H)asabraceforthewrenchwhileremovingor
installingdiaphragmbolts.
a.Holda28mmwrenchonthewrench󰘱ats
oftheexposedpistonshaft.Useanother
wrench(10mmhexkey)ontheshaftbolt
(13)toremoveit.Thenremoveallpartsof
thediaphragmassembly.
b.Rotatethedriveshafttomovethepistonfully
totheotherside.Repeatstep4a.
5.Tocontinuewithdiaphragmdisassembly,see
DisassembletheCenterSection,page20.
16859.0773

Repair
Reassemble Reassemble
Reassemblethe the theStandard Standard StandardDiaphragms Diaphragms Diaphragms
NOTICE NOTICE
NOTICE
Afterreassembly,allowthethreadlockertocure
for12hours,orpermanufacturer’sinstructions,
priortooperatingthepump.Damagetothepump
willoccurifthediaphragmshaftboltloosens.
TIP: TIP:
TIP:Ifyouarealsorepairingorservicingthe
centersection(driveshaft,piston,etc.),follow
CenterSectionRepair,page20,beforereplacing
diaphragms.
1.Cleanallpartsandinspectforwearordamage.
Replacepartsasneeded.Besurethecenter
sectioniscleananddry.
2.Thoroughlycleanorreplacethediaphragmbolt
(13).Installtheo-ring(34).
3.Assemblethe󰘱uidsideplate(9),thediaphragm
(11),thebackupdiaphragm(12,ifpresent),and
theairsidediaphragmplate(10)onthebolt
exactlyasshown.
4.Cleanthefemalethreadsofthepistonshaft
withawirebrushdippedinsolventtoremove
anyresidualthreadlocker.Applythread-locking
primerandallowittodry.
5.Applymedium-strength(blue)threadlockerto
thethreadsofthebolt.
6.Holda28mmwrenchonthewrench󰘱atsofthe
pistonshaft.Screwtheboltontotheshaftand
torqueto135N•m(100ft-lb).
7.Rotatethedriveshafttomovethepistonfully
tooneside.Seeinstructionsinstep4of
DisassembletheStandardDiaphragms,page16.
8.Repeattoinstalltheotherdiaphragmassembly.
9.Attachthe󰘱uidcovers.Thearrowoneach󰘱uid
covermustpointtowardtheoutletmanifold.
10.Reassemblethecheckvalvesandmanifolds.
SeeReassembletheCheckValve,page13.
11.Restoremotorcoolingfancoverandpin(131)to
theiroriginallocations.
1
Roundedsidefacesdiaphragm.2–Piece 2–Piece
2–Piece( ( (PT PT PTor or orSP SP SP) ) )Models Models Models
2
Applymedium-strength(blue)thread
lockertothethreads.
3
AIRSIDEmarkingsondiaphragmmust
facethecenterhousing.
4
Ifthescrewcomeslooseorisreplaced,
applypermanent(red)threadlocker
todiaphragmsidethreads.Apply
medium-strength(blue)threadlockerto
shaftsidethreads.
5
Torqueto135N•m(100ft-lb)at100
rpmmaximum.
6
Applyprimertothefemalethreads.
Allowtodry.
859.077317

Repair
Overmolded Overmolded
OvermoldedDiaphragm Diaphragm DiaphragmRepair Repair Repair
Tools Tools
ToolsRequired Required Required
•28mmopenendwrench
Disassemble Disassemble
Disassemblethe the theOvermolded Overmolded OvermoldedDiaphragms Diaphragms Diaphragms
NOTE: NOTE:
NOTE:Diaphragmkitsareavailableinarangeof
materialsandstyles.SeePartssection.
1.FollowthePressureReliefProcedure,page13.
Disconnectpowerfromthemotor.Disconnectall
󰘱uidandairlines.
2.Removethemanifoldsanddisassemble
theballcheckvalvesasexplainedin
CheckValveRepair,page13.
3.Removetheclamps(30)fromthe󰘱uidcovers,
thenpullthe󰘱uidcoversoffofthepump.
4.Toremovethediaphragms,thepistonmust
bemovedfullytooneside.Ifthepumpisnot
attachedtothegearbox,turntheshaftbyhand
tomovethepiston.Ifthepumpisstillattached
tothegearbox,loosenthescrewsandremove
thefancover.Turnthefanbyhandtorotatethe
shafttoshiftthepistontooneside.
TIP: TIP:
TIP:Theaircoverhas2holes(H),oneatthe
9o’clockpositionandanotheratthe3o’clock
position.Usepin(131),placedineitherhole
(H)asabraceforthewrenchwhileremovingor
installingdiaphragmbolts.
a.Holda28mmwrenchonthewrench󰘱atsof
theexposedpistonshaft.Gripthediaphragm
securelyaroundtheouteredgeandrotate
counterclockwise.
b.Rotatethedriveshafttomovethepistonfully
totheotherside.Repeatstep4a.
5.Tocontinuewithdiaphragmdisassembly,see
DisassembletheCenterSection,page20.
18859.0773

Repair
Reassemble Reassemble
Reassemblethe the theOvermolded Overmolded OvermoldedDiaphragms Diaphragms Diaphragms
NOTICE NOTICE
NOTICE
Afterreassembly,allowthethreadlockertocure
for12hours,orpermanufacturer’sinstructions,
priortooperatingthepump.Damagetothepump
willoccurifthediaphragmshaftboltloosens.
TIP: TIP:
TIP:Ifyouarealsorepairingorservicingthe
centersection(driveshaft,piston,etc.),follow
CenterSectionRepair,page20,beforereplacing
diaphragms.
1.Cleanallpartsandinspectforwearordamage.
Replacepartsasneeded.Besurethecenter
sectioniscleananddry.
2.Thoroughlycleanorreplacethediaphragmbolt
(13).Installtheo-ring(34).
3.Assemblethe󰘱uidsideplate(9),thediaphragm
(11),thebackupdiaphragm(12,ifpresent),and
theairsidediaphragmplate(10)onthebolt
exactlyasshown.
4.Cleanthefemalethreadsofthepistonshaft
withawirebrushdippedinsolventtoremove
anyresidualthreadlocker.Applythread-locking
primerandallowittodry.
5.Applymedium-strength(blue)threadlockerto
thethreadsofthebolt.
6.Holda28mmwrenchonthewrench󰘱atsofthe
pistonshaft.Screwtheboltontotheshaftand
torqueto135N•m(100ft-lb).
7.Rotatethedriveshafttomovethepistonfully
tooneside.Seeinstructionsinstep4of
DisassembletheOvermoldedDiaphragms,page
18.
8.Repeattoinstalltheotherdiaphragmassembly.
9.Attachthe󰘱uidcovers.
10.Reassemblethecheckvalvesandmanifolds.
SeeReassembletheCheckValve,page13.
11.Restoremotorcoolingfancoverandpin(131)to
theiroriginallocations.
1
Roundedsidefacesdiaphragm.1–Piece 1–Piece
1–Piece( ( (EO EO EO) ) )Model Model Model
2
Applymedium-strength(blue)thread
lockertothethreads.
3
Applyprimertothefemalethreads.
Allowtodry.
859.077319

Repair
Center Center
CenterSection Section SectionRepair Repair Repair
Disassemble Disassemble
Disassemblethe the theCenter Center CenterSection Section Section
Seetheillustrationsonpage18.
1.FollowthePressureReliefProcedure,page13.
Disconnectpowerfromthemotor.Disconnectall
󰘱uidandairlines.
2.Removethemanifoldsand
checkvalvepartsasdirectedin
DisassembletheCheckValve,page13.
3.Removethe󰘱uidcoversand
diaphragmsasdirectedin
DisassembletheStandardDiaphragms,page16.
TIP: TIP:
TIP:Clampthegearboxbracket(15)tothe
bench.Leavethepumpconnectedtothemotor.
4.Usea10mmhexwrenchtoremove4bolts(117).
Pullthepumpoffthealignmenthousing(116).
TIP: TIP:
TIP:Itmaybenecessarytotapthepumpwitha
rubbermallettodisengagethecoupler.
5.Usea5/16hexwrenchtoremovetheplug(124).
Usea30mmsocketwrenchtoremovethe
bearingbolt(106)andtheo-ring(108)fromthe
top.
6.Turnthedriveshaftassembly(112)sothe
grooveontheshaftisatthetop,inlinewiththe
alignmentmarkings.
7.Usea3/4–16bolttopushoutthedriveshaft
assembly(112).Youcanalsousethebearing
bolt(106),butremovethebearing(107)󰘰rst.Be
surethatthegrooveonthedriveshaftremains
alignedwiththemarkingsinthecentersection.
NOTE: NOTE:
NOTE:Removetheboltafterthedriveshaftis
freed.
NOTICE NOTICE
NOTICE
Properalignmentisessential.Donotapply
morethanabout1.1N•m(10in-lb)oftorque.
Excessivetorquecouldstripthehousing
thread.Ifyouencounterresistance,check
alignmentorcontactyourdistributor.
8.Theshaftcoupler(113)mightcomeoutwith
thedriveshaftassembly.Ifnot,removefrom
gearbox(118).
9.Removethesealcartridge(110),theo-ring(109)
andtheradialseal(111)fromthedriveshaft
assembly.
10.Slidethepistonassembly(102)outofthecenter.
11.Onlyremovethealignmenthousing(116)if
needed.Usea10mmhexwrenchtoremove4
bolts(120).Pullthealignmenthousingoffthe
gearbox(118).
12.Leavethegearboxcoupler(114)attachedtothe
gearboxshaft(118)unlessitisdamaged.Ifyou
needtoremoveit,abearingpullermustbeused.
20859.0773