Graco EcoQuip EQ200T Use and care manual

Operation,Repair,andParts
EcoQuip EcoQuip
EcoQuipVapor Vapor VaporAbrasive Abrasive Abrasive
Blast Blast
BlastSystem System System334666B
EN
Vapor Vapor
Vaporabrasive abrasive abrasiveblast blast blastsystem. system. system.For For Forprofessional professional professionaluse use useonly. only. only.Not Not Notapproved approved approvedfor for foruse use usein in inexplosive explosive explosiveatmospheres atmospheres atmospheres
or or
orhazardous hazardous hazardouslocations. locations. locations.
Important Important
ImportantSafety Safety SafetyInstructions Instructions Instructions
Readallwarningsandinstructionsinthismanual.Savethese
instructions.
125 psi (8.6 bar, 0.86 MPa) Maximum
Working Pressure
See page 2 for Model information.
PROVENQUALITY.LEADINGTECHNOLOGY.

Contents Contents
Contents
Models...............................................................2
RelatedManuals................................................2
Warnings...........................................................3
Notes.................................................................5
SystemComponentIdenti󰘰cation.........................6
EQ200TandEQ400T...................................6
DataTrakControls........................................7
PressureReliefProcedure..................................8
Operation...........................................................9
ChecklistBeforeStarting..............................9
LiftingtheTrailerSystems............................9
ConnectingtheBlastHoseandAir
Hose..............................................10
SettingUptheEquipment.............................11
BlastingTips................................................15
UsingtheWashFeature...............................17
Re󰘰llingthePotwithAbrasive.......................18
ShuttingDown.............................................19
WinterizingtheEquipment............................21
Troubleshooting..................................................22
TroubleshootingExamples...........................26
Repair................................................................28
RepairingtheMainAirRegulator..................28
FlushingtheDiaphragmValve......................29
RepairingtheDiaphragmValve.....................30
CleaningtheAuto-VentValve.......................31
ReplacingtheDataTrakBattery....................32
ReplacingtheDataTrakFuse.......................33
Parts..................................................................34
EQ200TandEQ400T...................................34
Enclosure....................................................36
Trailers........................................................38
PressurePot................................................41
HoseSchematic.................................................42
VaporAbrasiveBlastSystemsand
Accessories..........................................43
EcoQuipSkidSystems.................................43
EcoQuipTrailerSystems..............................43
Mobile/SkidUnits.........................................44
TrailerUnits.................................................44
Hoses.........................................................45
Nozzles.......................................................45
CommonSpareParts...................................46
OtherAccessories........................................46
Dimensions........................................................47
TechnicalSpeci󰘰cations......................................48
Notes.................................................................49
GracoExtendedWarrantyforEcoQuip™
Components.........................................50
Models Models
Models
Part Part
PartDescription Description Description
EQ200TEcoQuip200VaporBlastSystem
EQ400TEcoQuip400VaporBlastSystem
Related Related
RelatedManuals Manuals Manuals
Manual Manual
ManualNumber Number NumberProduct Product Product
313840DataTrak
333397Pump
334142EQ100M
334143EQ300M,EQ600M
334667EQ300C,EQ600C
2
334666B

Warnings
Warnings Warnings
Warnings
Thefollowingwarningsareforthesetup,use,grounding,maintenance,andrepairofthisequipment.The
exclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbolsrefertoprocedure-speci󰘰c
risks.Whenthesesymbolsappearinthebodyofthismanualoronwarninglabels,referbacktothese
Warnings.Product-speci󰘰chazardsymbolsandwarningsnotcoveredinthissectionmayappearthroughout
thebodyofthismanualwhereapplicable.
WARNING WARNING
WARNING
DUST DUST
DUSTAND AND ANDDEBRIS DEBRIS DEBRISHAZARD HAZARD HAZARD
Useofthisequipmentcanresultinthereleaseofpotentiallyharmfuldustortoxicsubstances
fromtheabrasivebeingused,thecoatingsbeingremoved,andthebaseobjectbeingblasted.
•Foruseonlybysophisticatedusersfamiliarwithapplicablegovernmentalsafetyandindustrial
hygieneregulators.
•Useequipmentonlyinawell-ventilatedarea.
•Wearaproperly󰘰t-testedandgovernmentapprovedrespiratorsuitableforthedustconditions.
•Followlocalordinancesand/orregulationsfordisposaloftoxicsubstancesanddebris.
EQUIPMENT EQUIPMENT
EQUIPMENTMISUSE MISUSE MISUSEHAZARD HAZARD HAZARD
Misusecancausedeathorseriousinjury.
•Donotoperatetheunitwhenfatiguedorunderthein󰘱uenceofdrugsoralcohol.
•Donotexceedthemaximumworkingpressureortemperatureratingofthelowestrated
systemcomponent.SeeTechnical Technical
TechnicalData Data Datainallequipmentmanuals.
•Donotusethisequipmentwithouthoserestraintsandcouplerpinsinstalledonallairand
blasthosecouplings.
•Donotblastunstableobjects.Thehighamountof󰘱uid󰘱owfromthenozzlecanpotentially
moveheavyobjects.
•Donotexceedloadratingoflifteyes.
•Donotoperateequipmentonorstandonanunstablesupport.Keepeffectivefootingand
balanceatalltimes.
•Use󰘱uidsandsolventsthatarecompatiblewithequipmentwettedparts.SeeTechnicalData
inallequipmentmanuals.Read󰘱uidandsolventmanufacturer’swarnings.Forcomplete
informationaboutyourmaterial,requestMSDSfromdistributororretailer.
•Donotleavetheworkareawhileequipmentisenergizedorunderpressure.
•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.
334666B 3

Warnings
WARNING WARNING
WARNING
BURN BURN
BURNHAZARD HAZARD HAZARD
Equipmentsurfacesand󰘱uidthatisheatedcanbecomeveryhotduringoperation.Toavoid
severeburns:
•Donottouchhot󰘱uidorequipment.
FIRE FIRE
FIREAND AND ANDEXPLOSION EXPLOSION EXPLOSIONHAZARD HAZARD HAZARD
Flammablefumes,suchassolvent,inworkareacanigniteorexplode.Tohelpprevent󰘰re
andexplosion:
•Useequipmentonlyinwellventilatedarea.
•Abrasivematerialexitingblastnozzlecangeneratesparks.When󰘱ammableliquidsareused
neartheblastnozzleorfor󰘱ushingorcleaning,keeptheblastnozzleatleast20feet(6
meters)awayfromexplosivevapors.
•Keepworkareafreeofdebris,includingsolvent,ragsandgasoline.
•Keepaworking󰘰reextinguisherintheworkarea.
PERSONAL PERSONAL
PERSONALPROTECTIVE PROTECTIVE PROTECTIVEEQUIPMENT EQUIPMENT EQUIPMENT
Wearappropriateprotectiveequipmentwhenintheworkareatohelppreventseriousinjury,
includingeyeinjury,hearingloss,inhalationoftoxicfumes,andburns.Protectiveequipment
includesbutisnotlimitedto:
•Protectiveeyewear
•Protectiveshoes
•Gloves
•Hearingprotection
•Properly󰘰t-testedandgovernmentapprovedrespiratorsuitableforthedustconditions
RECOIL RECOIL
RECOILHAZARD HAZARD HAZARD
Blastnozzlemayrecoilwhentriggered.Ifyouarenotstandingsecurely,youcouldfalland
beseriouslyinjured.
4
334666B

Notes
Notes Notes
Notes
334666B 5

SystemComponentIdentication
System System
SystemComponent Component ComponentIdenti󰘰cation Identi󰘰cation Identi󰘰cation
EQ200T EQ200T
EQ200Tand and andEQ400T EQ400T EQ400T
6 334666B

SystemComponentIdentication
Key: Key:
Key:
BBlastControlSwitch
B2BlastNozzle
CBlastHose
EPot
FBungPin
JPotDumpValve
KAutoVentValve
LBlastCheckValve
MAbrasiveBallValve
PControlBox
QEmergencyStop
RBlastAirRegulator
SAbrasiveMeter
TPotPressureRegulator
UPotPressureGauge
Key: Key:
Key:
VBlastAirPressureGauge
WSelectorValve
XRinseBallValve
YAirSupplyConnection
ZBlastConnection
ZAPneumaticControlConnection
ZBElectricControlConnection
ZCSupplyAirPressureGauge
ZDDataTrak(seeDataTrakControls,page7)
ZEAccessoryExtensionhose
ZFAbrasiveMaterial
ZGFillPortCheckValve
ACAirCompressor
ADAirConnections
AEAirCompressorControls
DataTrak DataTrak
DataTrakControls Controls Controls
8800000
83000
9
Key: Key:
Key:
RKResetKey—Resultsinfaults.Pressand
holdforthreesecondstoclearthebatch
totalizer.
CRCycle/Rate
BTBatchTotalizer
GTGrandTotalizer
334666B
7

PressureReliefProcedure
Pressure Pressure
PressureRelief Relief ReliefProcedure Procedure Procedure
FollowthePressureReliefProcedure
wheneveryouseethissymbol.
Thisequipmentstayspressurizeduntilpressure
ismanuallyrelieved.Tohelppreventserious
injuryfrompressurized󰘱uid,suchassplashing
󰘱uid,followthePressureReliefProcedurewhen
instructed.
1.Turnthepotpressureregulator(PR)off.
2.Closetheabrasiveballvalve.
3.Turnthecompressoroffandclosetheinlet
ballvalve.Closethecompressorsupplyair
valve.Engagetheblastcontrolswitchtorelieve
pressureinthesystem.Thendisconnecttheair
inlethosefromthesystem.
4.Turntheselectorvalve(SL)toFILL.
5.Openthedumpvalve.
6.Verifythatthepotpressuregauge(PG)displays
zeropressure.
8 334666B

Operation
Operation Operation
Operation
Checklist Checklist
ChecklistBefore Before BeforeStarting Starting Starting
•Checkthecompressedairsupplyaccordingtoits
operatormanual.Makesuretheairbeingsupplied
iscleanandrelativelyfreeofmoistureandoil
topreventwatercontaminationoftheaircontrol
components.
•Makesureairdeliveryvalvesareclosedbeforethe
airsupplycompressorisstarted.
•Makesureallrequiredhoserestraintsandcoupler
pinsareinworkingconditionandproperlyinstalled.
•Makesuretheequipmentissituatedonlevel
ground.Failuretokeeptheunitonlevelground
willmakeitdif󰘰cultorimpossibletopurgeallofthe
airfromthepressurevessel.
•Makesuretheequipmentisproperlysupportedon
asurfacethatcanholditstotalweight.Theweight
ofallpersonnel,thematerialbeingblasted,and
anyabrasivebeingstoredmustalsobeconsidered
(seeTechnicalSpeci󰘰cations,page48).
•Makesurethewatertankwillremainfullysupplied
withcleanwatertoavoidanypossibilityofthe
pumprunningdryduringblasting.
•Makesurethatthepotiscleanandfreeofany
internaldebris.
•Makesuretousethecorrecttypeofblastcontrol.
Blastingwith150feet(45m)ormoreofblasthose
requirestheuseofanelectricblastcontrol.An
electricblastcontrolcanalsobeusedonhose
lengthsbelow150feet(45m).
•Makesuretheblasthoseislaidoutasstraightas
possiblebetweentheequipmentandtheworksite
(acoiledblasthosewilluncoilunderpressure).
NOTICE NOTICE
NOTICE
Sharpbendsintheblasthosecouldcausethe
abrasivetowearthroughthehoseandcause
prematurefailureofthehose.
•Makesuretherubbergasketineachhosecoupler
isinworkingcondition.
Lifting Lifting
Liftingthe the theTrailer Trailer TrailerSystems Systems Systems
•Lifttheunitwithaliftapparatusratedfor10,000
lb(4535kg)minimum.
•Donotliftthesystembytheliftringontopofthe
compressor.
•Donotliftthesystembythetie-downringsonthe
trailer.
334666B 9

Operation
Connecting Connecting
Connectingthe the theBlast Blast BlastHose Hose Hoseand and andAir Air Air
Hose Hose
Hose
1.Makesuretheinlethoseconnectionsaretight,
andthathoserestraintsareproperlyinstalled
andsecure.
2.Opentheairsupplyvalve(125psi,8.6Bar,0.86
MPamaximum).Ifnecessary,usearegulatorin
thesupplyairlinetomeetthesespeci󰘰cations.
OFF
START
RUN
NOTE: NOTE:
NOTE:Seeaircompressormanualforoperation
andstartupinformation.
3.Connecttheblasthose,hoserestraints,control
hoses,andcouplerpins.
ti24706a
NOTE: NOTE:
NOTE:Ifyouareusinganelectricblastcontrol,
checkalloftheelectricalconnectionsfromthe
paneltotheblastcontrol.
NOTICE NOTICE
NOTICE
Makesurenoelectricalconnectionswill
beexposedtowater.Exposuretowater
couldcauseashortcircuitanddamagethe
equipment.
10 334666B

Operation
Setting Setting
SettingUp Up Upthe the theEquipment Equipment Equipment
1.Disconnecttheabrasivehoseatthecamand
groovewiththeabrasiveballvalveclosed.
NOTE: NOTE:
NOTE:Ifthepotcontainswaterandabrasive
(especiallyunderpressure),releasingthecam
andgroovewiththeballvalveopenwillcausean
unintentionalreleaseofabrasive.
2.Flushwaterthroughthepotandoutthe
disconnectedabrasiveballvalvebefore󰘰llingthe
potwithwaterandabrasive.
3.Reconnecttheabrasivehose.
4.Disconnectthepumpinlethoseand󰘱ushthe
watertanktoremoveanyremainingdebris.
Reconnectthepumpinlethose.
5.Fillthewatertankonlywithfreshwater,then
opentheinletballvalve.
6.Closetherinse,dump,andabrasiveballvalves.
7.TurntheselectorvalvetoRINSE.
8.DisengagetheEmergencyStop.
NOTE: NOTE:
NOTE:Thewaterpumpwillnotworkunlessthe
EmergencyStopisdisengaged.
334666B
11

Operation
9.Alignthebunghandlewiththepinslot,andthen
󰘰rmlypushandturnthehandle90°afterthepin
isbelowthebracketslot.Properengagementof
thepinwillholdthebungdownuntilitisreleased.
10.Add10gallons(30liters)offreshwaterto
thepot.Wearappropriatepersonalprotective
equipment,includinganappropriately󰘰t-tested
governmentapprovedrespiratorsuitableforthe
dustconditions.Addabrasivematerial(minimum
fourbags,maximumten50lb(23kg)bagsof
high-massabrasive,oreight50lb(23kg)bags
oflowmassabrasive).
12
10 gal
(30 L)
200-500 lb
(90-227 kg)
11.Useagardenhoseortherinsehosetowashthe
abrasiveintothepotandclearanyabrasivefrom
thebungandbungseal.
12.Whenthewaterlevelreachesthebungseal,
rotatethehandletoreleasethebungpin(this
willcausethebungtopopupagainsttheseal
andclosethebung).
13.TurntheselectorvalvetoFILL.
NOTE: NOTE:
NOTE:Thewaterpumpshouldbegincycling.If
not,openthepotpressureregulatorenoughto
causethepumptorunat60cpm.
NOTE: NOTE:
NOTE:Theautovent/purgevalvewillallowall
oftheairtrappedinthetopofthepottovent.
Whenairstopsventing,thepotpressuregauge
willstarttoregisterpressure.
12
334666B

Operation
14.Waitforpotpressuretoincrease.NOTE: NOTE:
NOTE:It
cantakeuptoseveralminutesforthepotto
pressurize.
ti24824a
NOTE: NOTE:
NOTE:Thebungcannotbepusheddownunless
allofthepressureinthepotisreleasedby
openingthedumpvalve.
15.Setthepotpressure30psi(2.0Bar,0.2MPa)
higherthantheintendedblastpressure.Quickly
openandclosethedumpvalveafterthepump
stalls.Relievepotpressureto40psi(2.7Bar,
0.27MPa)beforeclosingthedumpvalve.
Repeatuntilpotpressureisconsistent.
16.TurntheselectorvalvetoWASH.
17.Settheblastairpressure30psi(2.0Bar,0.2
MPa)lowerthanthepotpressurewhileblasting.
NOTE: NOTE:
NOTE:Inordertoadjusttheblastpressure,the
blastcontrolmustbeengaged.Fortheinitial
setting,leavetheabrasiveballvalveclosed.
NOTE: NOTE:
NOTE:Engageandreleasetheblastcontrol
handleeachtimetheblastregulatorisadjusted.
18.TurntheselectorvalvetoBLAST.
19.Opentheabrasiveballvalve.
NOTE: NOTE:
NOTE:Makesurethepotpressurereturnstothe
initialsetting(itwillnotreturntotheinitialsetting
ifthemeteringvalveisclosed).
20.Engagetheblastcontrolswitchandbegin
blasting.
NOTE: NOTE:
NOTE:Youmayhavetowait1–2minutesforthe
abrasivematerialtoreachthenozzle.
NOTE: NOTE:
NOTE:Potpressureandblastpressureshould
equalizeduringblasting.Onlysetpotpressure
withtheabrasiveballvalveclosed.Neveradjust
potpressurewhileblasting.
334666B 13

Operation
21.Slowlyadjusttheabrasivemetervalvewhilethe
abrasiveisblastingfromthenozzle.Typical
adjustmentrangesfrom1/8to1/4turnopen.
NOTE: NOTE:
NOTE:TheDataTrakcanbeusedtoassistin
settingthepumpcyclerate.Optimalabrasive
mediaconsumptiontypicallyoccurswiththe
cycleratesetat7–10cyclesperminute.
8800000
83000
9
NOTE: NOTE:
NOTE:Useapieceoftestmaterialsimilarto
whatyouwillbeblasting.
NOTE: NOTE:
NOTE:Alwaysstartasgentlyaspossibleand
thenincreasetheblastforceasnecessaryto
cleanwithoutdoinganydamagetothesubstrate.
Whenproperlyset,thepumpshouldcycle7-10
timesperminute.Highproductionrateusers
mayneedtoincreasecyclerateabove10cycles
perminute.
NOTE: NOTE:
NOTE:Closetheabrasiveballvalvewhenever
youstopblastingformorethan2-3minutes.
Thiswillhelptoextendtheservicelifeofthe
diaphragmvalve.
14
334666B

Operation
Blasting Blasting
BlastingTips Tips Tips
When󰘰rstlearningtheeffectsoftheblaster,geta
betterunderstandingoftheresultsbystartingata
shallowangle(closerto0°thanto90°)andkeep
thenozzleapproximately16in.(40cm)fromthe
application.Observetheresults,thenreducethe
distance,steepentheangle,andadjusttheblast
regulator.
Astheblastpressureisincreased,slowlyadjust
themeteringvalveandwatchtheDataTrakto
achieve7-10pumpcyclesperminute.See
DataTrakControls,page7.
NOTE: NOTE:
NOTE:Theheavierandsmallertheabrasiveparticle
(i.e.80-grit),themoreaggressivetheresults.
Blasting Blasting
Blastingon on onHigher Higher HigherSurfaces Surfaces Surfaces
Whenblastingonasurfacehigherthanthe
equipment,makesurethatthereisalengthofblast
hoseonthegroundequalto10-20%oftheheight.
Thehoseonthegroundpreventsunspentabrasive
inthehosefromback-󰘰llingtheinternalplumbingof
thepanel.
Forexample:Whenblasting50feet(15m)straight
up,useatleast10feet(3m)ofblasthoseonthe
groundbeforetheblasthosegoesuptotheblasting
height.
334666B 15

Operation
Metering Metering
MeteringValve Valve ValveSettings Settings Settings
Thereisno󰘰xedformulaforwhatworksbestineachapplication.Theinformationbelowworksbestforthe
majorityofthetime.Fromthisinitialsetting,adjustmentscanbemadeupordowntogetthefastestremoval
rateswithoutdamagetothesurface.
Normalsettingsare:110psi(7.5Bar,0.75MPa)initialpotsetting,lessthan1/2turnopenmeteringvalve,
blastingpressureat80psi(5.5Bar,0.55MPa).Forapplicationsrequiringhigherperformance,use
high-performanceabrasive(theheaviestmass@80grit)suchasGarnet,andthehighestpressuresthe
compressorcansupport.Theinitialpotpressureshouldalwaysbe30psi(2.0Bar,0.2MPa)abovethe
intendedblastpressure.
Graduallymakeadjustmentstomeetthespeci󰘰crequirementsforeachapplication.Higherblastpressures
willrequireturningtheabrasivemeteringvalveslightlymoreopen(andviceversa).Maketheadjustments
(seeDataTrakControls,page7)toachieve7-10cyclesperminutetobethemostef󰘰cient(cutatthefastest
ratewhileusingtheleastamountofabrasive).Blastingpressurescanrangebetween30-120psimax
(2.0Bar,0.2MPa–8.2Bar,0.82MPa).
Unlikeconventionalsandblasting,higherpressuresdonotnecessarilymeanbettercleaning.Nozzledistance
andtheangletothesurfacehasaneffectonperformance,asdoestheblastpressure.Choiceofabrasive
alsohasagreateffect.High-performanceabrasiveproducesthebestperformanceandcansaveenough
timetomakeupthedifferenceincost.
NOTE: NOTE:
NOTE:Blastingwith150+feetofblasthoserequirestheuseofanelectricblastcontrol.
Grit Grit
GritSize Size SizeBlast Blast
BlastPressure Pressure PressureAbrasive Abrasive AbrasiveDose Dose DoseBlast Blast BlastAngle Angle AngleNotes Notes Notes
General General
General40/7060-80psi(4.1Bar,
0.41MPa-5.5Bar,
0.55MPa)
1/4to1/2turns35°-65°Whentheblast
pressureis
increased,the
abrasivedoseturns
willalsoneedtobe
increased.
Wood Wood
Wood80(usingalow
massabrasive
likeglass)
40-50psi(2.7Bar,
0.27MPa-3.4Bar,
0.34MPa)
1/8to1/4turns15°-30°Donotwash,asit
mayraisethewood
grain.Brushoff
excessabrasiveafter
thewooddries.
Steel Steel
Steel80-100(using
ahigh-mass
abrasivelike
Garnet)
100-120psi(6.8Bar,
0.68MPa-8.2Bar,
0.82MPa)
1/4–1/2turns65°-85˚Whentheblast
pressureis
increased,the
abrasivedoseturns
willalsoneedtobe
increased.
Fiberglass Fiberglass
Fiberglass40-70lowmass45-65psi(3.1Bar,
0.31MPa-4.4Bar,
0.44MPa)
1/8to1/4turns35°-45˚Whentheblast
pressureis
increased,the
abrasivedoseturns
willalsoneedtobe
increased.
16 334666B

Operation
Using Using
Usingthe the theWash Wash WashFeature Feature Feature
Thewashfeaturecausesair-drivenwater(without
abrasive)toblastandrinseareasthathavealready
beenblastedwithabrasive.Itisalsoaconvenient
featurefor󰘱ushingabrasivefromtheblasthose.
NOTICE NOTICE
NOTICE
Therewillalwaysbesomeresidualabrasivein
theblasthose.Neverusethewashfeatureon
anysurfaceotherthanwhereyouhaveblasted,or
intendtoblast.Itwillaffect/dullthesurface.
NOTICE NOTICE
NOTICE
Donotusethewashfeatureonwoodthathas
beenblasted.Itcoulddamagethewoodandcause
thegraintorise.Waitforthewoodtodryandthen
useabroom,brush,orvacuumtoremoveany
residualabrasive.
1.Closetheabrasiveballvalve.
2.TurntheselectorvalvetoWASH.
3.Blast1–2minutesuntiltheabrasiveiscleared
fromthehose.
4.Theequipmentisnowreadytowashany
previouslyblastedsurfaces.
334666B
17

Operation
Re󰘰lling Re󰘰lling
Re󰘰llingthe the thePot Pot Potwith with withAbrasive Abrasive Abrasive
1.Closetheabrasiveballvalve.
2.TurntheselectorvalvetoRINSE.
3.Openthedumpvalveslowlytorelievethewater
pressureinthepot.
NOTE: NOTE:
NOTE:Bepreparedtocapturethewaterthat
willbedrainedfromthepot.Alldisposalsmust
complywithnational,state,andlocalregulations.
4.Afterallofthepressureinthepothasbeen
relieved,engagethebungpinbycompressing
thespringandturningthehandle90°toholdthe
bungintheopenposition.
5.Addtheabrasive(minimumfourbags,maximum
ten50lb(23kg)bagsofhigh-massabrasive
oreight50lb(23kg)bagsoflow-mass
abrasive)andcontinuetheproceduresfrom
SettingUptheEquipment,page11.
NOTE: NOTE:
NOTE:Morewatermayneedtobedrainedfrom
thepottoallowadditionalabrasivetobeadded.
18 334666B

Operation
Shutting Shutting
ShuttingDown Down Down
1.Whenyouhave󰘰nishedblasting,performwash
untilalloftheabrasiveis󰘱ushedfromtheblast
hose.SeeUsingtheWashFeature,page17.
2.TurntheselectorvalvetoRINSE,andwiththe
abrasiveballvalveclosed,continuetoblastuntil
waterisclearedfromthehose.Thisistodrythe
insideofthehoseforstorage.
3.Opentheabrasiveballvalve,thenopenthedump
valveuntilthepotpressuregaugereads0psi.
Closetheabrasiveballvalveanddumpvalve.
NOTE: NOTE:
NOTE:Short-termshutdownisnowcomplete.
Iftheuntilwillbeshutdownformorethan24
hours,proceedtothenextstep.
4.Disconnecttheabrasiveballvalvecam-lockby
removingthecouplerpinsandpullingtherings
outanduptopullthetwocamsawayfromthe
groove.
5.Holdabucketunderthecam-lockcoupler,then
turntheselectorvalvetoWASH.Thiswillclean
debrisfromthecam-lockcouplerandgasket.
NOTE: NOTE:
NOTE:Makesurethegasketisinplaceafterthe
procedure.
NOTE: NOTE:
NOTE:Besuretocatchtheunspentabrasive
thatwillbewashedoutofthepanelplumbingand
outofthegroove󰘰tting.
6.TurntheselectorvalvetoFILL.Thiswillhelp
pushtheabrasiveoutthroughtheabrasivehose.
7.Placeabucketundertheabrasivehose.Slowly
openandclosetheabrasiveballvalveto󰘱ush
abrasivematerialfromthepot.Repeatseveral
times.Oncenoabrasivematerial󰘱owsfromthe
hose,closetheabrasiveballvalve.
NOTE: NOTE:
NOTE:Estimatethata5gallonpailwillbe
neededforeachbagofabrasivestillinthepot.
Coverthebucketsduringstoragesodebrisdoes
notcontaminatetheabrasive.
334666B 19

Operation
8.Engagethebungpintoholdthebungopenand
allowairtoenter.
9.Opentheabrasiveballvalveand󰘱ushthepotof
anyremainingabrasivematerial.
10.Closethepotbungandconnectthe
abrasivehose.Relievepressure
tocompletesystemshutdown(see
PressureReliefProcedure,page8).
NOTE: NOTE:
NOTE:Thesystemmustbewinterizedifitwill
beexposedtotemperaturesbelowfreezing.See
WinterizingtheEquipment,page21.
20 334666B