Graco EcoQuip 300 Use and care manual

Operation,Repair,andParts
EcoQuip EcoQuip
EcoQuipVapor Vapor VaporAbrasive Abrasive Abrasive
Blast Blast
BlastSystem System System334667G
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.
125 125
125psi psi psi(8.6 (8.6 (8.6bar, bar, bar,0.86 0.86 0.86MPa) MPa) MPa)Maximum Maximum Maximum
Working Working
WorkingPressure Pressure Pressure
See See
Seepage page page2 2 2for for forModel Model Modelinformation. information. information.
PROVENQUALITY.LEADINGTECHNOLOGY.

Contents Contents
Contents
Models...............................................................3
RelatedManuals................................................3
Warnings...........................................................4
OEMSystemGuidelines.....................................7
SystemComponentIdenti󰘰cation.........................8
EQ300CandEQ600C..................................8
DataTrakControls........................................9
PressureReliefProcedure..................................10
Grounding(ATEXSystemsonly).........................10
Operation...........................................................11
ChecklistBeforeStarting..............................11
LiftingtheSystem........................................11
ConnectingtheBlastHoseandAir
Hose..............................................12
SettingUptheEquipment.............................14
BlastingTips................................................18
UsingtheWashFeature...............................20
Re󰘰llingthePotwithAbrasive.......................21
ShuttingDown.............................................22
WinterizingtheEquipment............................24
Troubleshooting..................................................25
TroubleshootingExamples...........................28
Repair................................................................30
RepairingtheMainAirRegulator..................30
FlushingtheDiaphragmValve......................31
RepairingtheDiaphragmValve.....................32
CleaningtheAuto-VentValve.......................33
ReplacingtheDataTrakBattery....................34
ReplacingtheDataTrakFuse.......................35
Parts..................................................................36
EQ300CandEQ600C..................................36
Enclosure....................................................38
PressurePot................................................40
BlastHoses.................................................41
HoseSchematic.................................................42
VaporAbrasiveBlastSystemsand
Accessories..........................................43
EcoQuipSystemCon󰘰gurator.......................43
ModelSeries...............................................44
BlastHoseswithControl
Hoses/Cables.................................45
BlastHoseswithoutControl
Hose/Cables..................................45
BlastControlHoses/Cables..........................46
Nozzles.......................................................46
OtherAccessories........................................46
CommonSpareParts...................................47
Dimensions........................................................48
TechnicalSpeci󰘰cations......................................49
GracoExtendedWarrantyforEcoQuip™
Components.........................................50
2
334667G

Models
Models Models
Models
Model Model
ModelDescription Description DescriptionApprovals Approvals Approvals
EQ300CEcoQuip300VaporBlastSystem
EQ600CEcoQuip600VaporBlastSystem
EQ30XCEcoQuip300VaporBlastSystemATEXApproved
II II
II2G 2G 2GEx Ex Exh h hai ai aiIIA IIA IIAT3 T3 T3Gb Gb GbX X X
EQ60XCEcoQuip600VaporBlastSystemATEXApproved
II II
II2G 2G 2GEx Ex Exh h hai ai aiIIA IIA IIAT3 T3 T3Gb Gb GbX X X
Related Related
RelatedManuals Manuals Manuals
Manual Manual
ManualNumber Number NumberProduct Product Product
313840DataTrak
333397Pump
334143EQ300M,EQ600M
334142EQ100M
334666EQ200T,EQ400T
334667G 3

Warnings
Warnings Warnings
Warnings
Thefollowingwarningsareforthesetup,use,grounding,maintenance,andrepairofthisequipment.The
exclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbolsrefertoprocedure-speci󰘰c
risks.Whenthesesymbolsappearinthebodyofthismanualoronwarninglabels,referbacktothese
Warnings.Product-speci󰘰chazardsymbolsandwarningsnotcoveredinthissectionmayappearthroughout
thebodyofthismanualwhereapplicable.
WARNING WARNING
WARNING
SPECIAL SPECIAL
SPECIALCONDITIONS CONDITIONS CONDITIONSFOR FOR FORUSE USE USE
•Groundallequipmentintheworkarea.SeeGrounding Grounding
GroundingInstructions, Instructions, Instructions,page page page10 10 10. . .
•Alllabelandmarkingmaterialmustbecleanedwithadampcloth(orequivalent).
DUST DUST
DUSTAND AND ANDDEBRIS DEBRIS DEBRISHAZARD HAZARD HAZARD
Useofthisequipmentcanresultinthereleaseofpotentiallyharmfuldustortoxicsubstances
fromtheabrasivebeingused,thecoatingsbeingremoved,andthebaseobjectbeingblasted.
•Foruseonlybysophisticatedusersfamiliarwithapplicablegovernmentalsafetyandindustrial
hygieneregulators.
•Useequipmentonlyinawell-ventilatedarea.
•Wearaproperly󰘰t-testedandgovernmentapprovedrespiratorsuitableforthedustconditions.
•Followlocalordinancesand/orregulationsfordisposaloftoxicsubstancesanddebris.
4
334667G

Warnings
WARNING WARNING
WARNING
EQUIPMENT EQUIPMENT
EQUIPMENTMISUSE MISUSE MISUSEHAZARD HAZARD HAZARD
Misusecancausedeathorseriousinjury.
•Donotoperatetheunitwhenfatiguedorunderthein󰘱uenceofdrugsoralcohol.
•Donotexceedthemaximumworkingpressureortemperatureratingofthelowestrated
systemcomponent.SeeTechnical Technical
TechnicalSpeci󰘰cations, Speci󰘰cations, Speci󰘰cations,page page page49 49 49inallequipmentmanuals.
•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, Procedure,page page page10 10 10whenequipmentis
notinuse.
•Checkequipmentdaily.Repairorreplacewornordamagedpartsimmediatelywithgenuine
manufacturer’sreplacementpartsonly.
•Donotalterormodifyequipment.Alterationsormodi󰘰cationsmayvoidagencyapprovals
andcreatesafetyhazards.
•Makesureallequipmentisratedandapprovedfortheenvironmentinwhichyouareusingit.
•Useequipmentonlyforitsintendedpurpose.Callyourdistributorforinformation.
•Routehosesandcablesawayfromtraf󰘰careas,sharpedges,movingparts,andhotsurfaces.
•Donotkinkoroverbendhosesorusehosestopullequipment.
•Keepchildrenandanimalsawayfromworkarea.
•Complywithallapplicablesafetyregulations.
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.
334667G 5

Warnings
WARNING WARNING
WARNING
PERSONAL PERSONAL
PERSONALPROTECTIVE PROTECTIVE PROTECTIVEEQUIPMENT EQUIPMENT EQUIPMENT
Wearappropriateprotectiveequipmentwhenintheworkareatohelppreventseriousinjury,
includingeyeinjury,hearingloss,inhalationoftoxicfumes,andburns.Protectiveequipment
includesbutisnotlimitedto:
•Protectiveeyewearandhearingprotection
•Protectiveclothing,shoes,andgloves
•Properly󰘰t-testedandgovernmentapprovedrespiratorsuitableforthedustconditions
RECOIL RECOIL
RECOILHAZARD HAZARD HAZARD
Blastnozzlemayrecoilwhentriggered.Ifyouarenotstandingsecurely,youcouldfalland
beseriouslyinjured.
6 334667G

OEMSystemGuidelines
OEM OEM
OEMSystem System SystemGuidelines Guidelines Guidelines
U.S. U.S.
U.S.Metric Metric
Metric
SystemWeight(Dry)450lb204kg
SystemWeight(Wet)1600lb726kg
WaterTankSize(mustbewater
compatible)
100gallon(recommended)378liter(recommended)
PumpInletFittingDixon6EM6-Bquickdisconnectinterchangeincluded
(3/4"NPTalsoonpump)
MinimumID3/4in.1.9cm
MaximumRecommendedPumpInlet
HoseLength
5ft4.5m
Maximumrecommendedrisefromwater
tankoutlettopumpinlet
16in.41cm
AvailableGracoInlethoses(w/quickdisconnectinterchanges)
17C03219in.length48cm
EQ184836in.length91cm
AvailableGracowatertankshutoffvalve
assembly(3/4"NPTmaleto6EM6-B
quickdisconnect)
EQ5131EQ5131
Forairinlethoserecommendations,seeTechnicalSpeci󰘰cations,page49.
SeeVaporAbrasiveBlastSystemsandAccessories,page43forGracorecommendedblasthosesand
nozzles.
Forsystemdimensionsandmountinglocations,seeDimensions,page48.
334667G
7

SystemComponentIdentication
System System
SystemComponent Component ComponentIdenti󰘰cation Identi󰘰cation Identi󰘰cation
EQ300C EQ300C
EQ300Cand and andEQ600C EQ600C EQ600C
8 334667G

SystemComponentIdentication
Key: Key:
Key:
ACart
BBlastControlSwitch
B2BlastNozzle
CBlastHose
EPot
FPop-UpPin
GWaterTank
HWaterTankLid
JPotDumpValve
KAutoVentValve
LBlastCheckValve
MAbrasiveBallValve
PControlBox
QEmergencyStop
RBlastAirRegulator
SAbrasiveMeteringValve
TPotPressureRegulator
Key: Key:
Key:
UPotPressureGauge
VBlastAirPressureGauge
WSelectorValve
XRinseBallValve
YAirSupplyConnection
ZBlastConnection
ZAPneumaticControlConnection
ZBElectricControlConnection(non-ATEX
systemsonly)
ZCSupplyAirPressureGauge
ZDDataTrak(seeDataTrakControls,page9)
ZEAccessoryExtensionhose
ZFAbrasiveMedia
ZGFillPort
ZHGroundWireandClamp(ATEXSystems
only)
DataTrak DataTrak
DataTrakControls Controls Controls
Key: Key:
Key:
RKResetKey—Resultsinfaults.Pressand
holdforthreesecondstoclearthebatch
totalizer.
CRCycle/Rate
BTBatchTotalizer
GTGrandTotalizer
334667G 9

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.Turnthecompressoroff.Closethecompressor
supplyairvalve.
4.Engagetheblastcontrolswitchtorelieve
pressureinthesystem.
5.Verifythattheairpressuregaugereads0psi.
Thendisconnecttheairinlethosefromthe
system.
6.Turntheselectorvalve(SL)toFILL.
7.Openthedumpvalve.
8.Verifythatthepotpressuregauge(PG)displays
zeropressure.
Grounding Grounding
Grounding(ATEX (ATEX (ATEXSystems Systems Systemsonly) only) only)
Theequipmentmustbegroundedtoreducethe
riskofstaticsparking.Staticsparkingcancause
fumestoigniteorexplode.Groundingprovidesan
escapewirefortheelectriccurrent.
Systems: Systems:
Systems:Usesuppliedgroundwireandclamp
(237686).
Air Air
Airand and and󰘱uid 󰘱uid 󰘱uidhoses: hoses: hoses:UseonlygenuineGracoATEX
rated,conductivehoseswithamaximumlength
of150ft(45m)combinedhoselengthtoensure
groundingcontinuity.Checktheelectricalresistance
ofthehoses.Ifthetotalresistancetogroundexceeds
29megaohms,replacethehoseimmediately.
Air Air
AirCompressor: Compressor: Compressor:Followmanufacturer’s
recommendations.
10 334667G

Operation
Operation Operation
Operation
Topreventfreezing,thisequipmentisshippedfrom
thefactorywithbluewindshieldwasher󰘱uidinside
thesystem.Itisnotnecessarytodrainbefore
using.Disposeofthe󰘱uidinaccordancewithlocal
regulations.
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,page49).
•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 theSystem System System
•Liftthesystemwithaliftapparatusrated
appropriatelyfortheweightofthesystem(see
TechnicalSpeci󰘰cations,page49).
•Thesystemcanbeliftedusingtheliftringonthe
potorthecarthandle.
334667G
11

Operation
Connecting Connecting
Connectingthe the theBlast Blast BlastHose Hose Hoseand and andAir Air Air
Hose Hose
Hose
1.EQ30XS EQ30XS
EQ30XSand and andEQ60XS EQ60XS EQ60XSonly: only: only:Connectthe
groundingcabletotheexternalgroundstud(ZH)
ontheenclosure,thenconnecttheclamptoa
trueearthground.
2.Alwayspurgetheairsupplyhose15–20seconds
beforeconnectingtheairsupplyhosefromthe
compressor(oron-sitecompressedairsource)
tothepanel.Makesurealldebrisisclearedfrom
thehose.
3.Connectanappropriatelysizedair
supplyhosetotheairinlet.See
TechnicalSpeci󰘰cations,page49.
NOTE: NOTE:
NOTE:Makesuretoproperlyinstallhose
restraintsandcouplerpinstothequick-coupler
andtheairline.Iftheholesonthequick-coupler
donotalign,thereissomethingwrongandthe
twocouplersarenotcompatible.DO DO
DONOT NOT NOTTURN TURN TURN
ON ON
ONTHE THE THEAIR AIR AIR.Seekhelptogetthesituation
resolved.
12
334667G

Operation
4.Opentheairsupplyvalve(125psi,8.6Bar,0.86
MPamaximum).Ifnecessary,usearegulatorin
thesupplyairlinetomeetthesespeci󰘰cations.
NOTE: NOTE:
NOTE:Makesuretheairsupplymeets
theappropriate appropriate
appropriateair air air󰘱ow 󰘱ow 󰘱owrequirements. requirements. requirements.See
TechnicalSpeci󰘰cations,page49.
5.Connecttheblasthose,hoserestraints,control
hoses,andcouplerpins.
NOTE: NOTE:
NOTE:Ifyouareusinganelectricblastcontrol,
checkalloftheelectricalconnectionsfromthe
paneltotheblastcontrol.
NOTICE NOTICE
NOTICE
Makesurenoelectricalconnectionswill
beexposedtowater.Exposuretowater
couldcauseashortcircuitanddamagethe
equipment.
334667G 13

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.
14
334667G

Operation
7.TurntheselectorvalvetoRINSE.
8.DisengagetheEmergencyStop.
NOTE: NOTE:
NOTE:Thewaterpumpwillnotworkunlessthe
EmergencyStopisdisengaged.
9.Alignthepop-uphandlewiththepinslot,and
then󰘰rmlypushandturnthehandle90°afterthe
pinisbelowthebracketslot.Properengagement
ofthepinwillholdthepop-updownuntilitis
released.
10.Add10gallons(30liters)offreshwaterto
thepot.Wearappropriatepersonalprotective
equipment,includinganappropriately󰘰t-tested
governmentapprovedrespiratorsuitableforthe
dustconditions.Addabrasivematerial(minimum
fourbags,maximumten50lb(23kg)bagsof
high-massabrasive,oreight50lb(23kg)bags
oflowmassabrasive).
11.Useagardenhoseortherinsehosetowashthe
abrasiveintothepotandclearanyabrasivefrom
thepop-upandgasket.
334667G 15

Operation
12.Whenthewaterlevelreachesthepop-upgasket,
rotatethehandletoreleasethepop-uppin.
NOTE: NOTE:
NOTE:Makesurepop-upgasketiscleanofall
debris.
13.TurntheselectorvalvetoFILL.
NOTE: NOTE:
NOTE:Thewaterpumpshouldbegincycling.If
not,openthepotpressureregulatorenoughto
causethepumptorunat60cpm.
NOTE: NOTE:
NOTE:Theautovent/purgevalvewillallowall
oftheairtrappedinthetopofthepottovent.
Whenairstopsventing,thepotpressuregauge
willstarttoregisterpressure.
14.Waitforpotpressuretoincrease.
NOTE: NOTE:
NOTE:Itcantakeuptoseveralminutesforthe
pottopressurize
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.
16 334667G

Operation
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.
21.Slowlyadjusttheabrasivemetervalvewhilethe
abrasiveisblastingfromthenozzle.Typical
adjustmentrangesfrom1/8to1/4turnopen.
NOTE: NOTE:
NOTE:TheDataTrakcanbeusedtoassistin
settingthepumpcyclerate.Optimalabrasive
mediaconsumptiontypicallyoccurswiththe
cycleratesetat7–10cyclesperminute.The
DataTrakcanbeusedtoassistinsettingthe
pumpcyclerate.Optimalabrasivemedia
consumptiontypicallyoccurswiththecyclerate
setat7–10cyclesperminute.
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
youstopblastingformorethan20-30minutes.
Thiswillhelptoextendtheservicelifeofthe
diaphragmvalve.
334667G
17

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,page9.
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.
18 334667G

Operation
Abrasive Abrasive
AbrasiveMetering 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,page9)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
General40/70crushed
glass
60-80psi(4.1Bar,
0.41MPa-5.5Bar,
0.55MPa)
10cyclesper
minute
35°-65°None
Wood Wood
Wood80(usingalow
massabrasive
likecrushedglass
orwalnut)
40-50psi(2.7Bar,
0.27MPa-3.4Bar,
0.34MPa)
8cyclesper
minute
15°-30°Donotwash,asit
mayraisethewood
grain.Brushoff
excessabrasiveafter
thewooddries.
Steel Steel
Steel60–80(using
ahigh-mass
abrasivelike
Garnet)
100-120psi(6.8Bar,
0.68MPa-8.2Bar,
0.82MPa)
10–12cyclesper
minute
65°-85˚None
Fiberglass Fiberglass
Fiberglass40-70lowmass45-65psi(3.1Bar,
0.31MPa-4.4Bar,
0.44MPa)
8cyclesper
minute
35°-45˚None
NOTE: NOTE:
NOTE:Adjustmentinblastpressurerequiresan
adjustmentoftheabrasivemeteringvalve
334667G 19

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.
20 334667G