Instructions-Parts
Pro
Pro Pro
Air
Air Air
For
For For
For
For For
use
use use
3000 psi (21 MPa, 210 bar) Maximum
Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air
Working Pressure
See page 3 for model part numbers and
approval information.
Xp™
Xp™ Xp™
Assisted
- --Assisted Assisted
use
use use
use
use use
only.
only. only.
Class
in ininClass Class
Group
in ininGroup Group
Important
Important Important
Thisequipmentcouldpresenthazardsifnotoperatedaccordingto
theinformationinthismanual.Read Read
this
manual
this this
manual manual
Electrostatic
Electrostatic Electrostatic
Spray
Spray Spray
Div.
I, I,I,Div. Div.
II,
II, II,
Safety
Safety Safety
before
before before
Hazardous
I IIHazardous Hazardous
Zone
Zone Zone
Explosive
1 11Explosive Explosive
Instructions
Instructions Instructions
using
using using
Gun
Gun Gun
Locations
Locations Locations
Atmosphere
Atmosphere Atmosphere
Read
the
equipment.
the the
equipment. equipment.
using
Group
using using
Group Group
Locations
Locations Locations
all
warnings
all all
warnings warnings
Save
Save Save
and
and and
these
instructions.
these these
instructions. instructions.
materials.
D DDmaterials. materials.
using
Group
using using
Group Group
instructions
instructions instructions
IIA
materials.
IIA IIA
materials. materials.
in
in in
3A2495L
EN
For
professional
For For
professional professional
PROVENQUALITY.LEADINGTECHNOLOGY.
Contents
Contents Contents
Models...............................................................3
Approvals...........................................................3
RelatedManuals................................................3
Warnings...........................................................4
GunOverview....................................................7
HowtheElectrostaticAASprayGun
Works............................................7
Controls,Indicators,andComponents...........8
SmartGuns.................................................9
Installation..........................................................14
WarningSign...............................................14
VentilatetheSprayBooth.............................14
AirSupplyLine............................................15
FluidSupplyLine.........................................15
Grounding...................................................17
GunSetup..........................................................21
GunSetupProcedure...................................21
CheckGunElectricalGrounding...................24
CheckFluidResistivity.................................25
CheckFluidViscosity...................................25
FlushBeforeUsingEquipment......................25
Operation...........................................................26
PressureReliefProcedure............................26
Startup........................................................27
Shutdown....................................................27
Maintenance......................................................28
DailyCareandCleaningChecklist................28
Flushing......................................................28
CleantheGunDaily.....................................30
DailySystemCare.......................................31
ElectricalTests...................................................32
TestGunResistance....................................32
TestPowerSupplyResistance.....................33
TestGunBarrelResistance..........................34
Troubleshooting..................................................35
SprayPatternTroubleshooting......................35
GunOperationTroubleshooting....................36
ElectricalTroubleshooting............................37
Repair................................................................39
PreparetheGunforService.........................39
AirCap,SprayTip,andFluidSeatHousing
Replacement..................................40
ElectrodeReplacement................................41
FluidTubeRemovalandReplacement...........42
FluidFilterReplacement...............................42
GunBarrelRemoval.....................................43
GunBarrelInstallation..................................43
FluidNeedleReplacement............................44
PowerSupplyRemovaland
Replacement..................................45
AlternatorRemovalandReplacement...........46
FanAirAdjustmentValveRepair..................48
AtomizingAirAdjustmentValve
Repair............................................48
ESOn-OffValveRepair...............................49
AirValveRepair...........................................50
SmartModuleReplacement..........................51
AirSwivelandExhaustValve
Replacement..................................52
Parts..................................................................53
StandardAir-AssistedSprayGun
Assembly.......................................53
SmartAir-AssistedSprayGun
Assembly.......................................55
AlternatorAssembly.....................................57
ESOn-OffValveAssembly...........................58
FanAirAdjustmentValveAssembly..............59
AirCapAssembly........................................60
SmartModuleAssembly...............................60
SprayTipSelectionChart....................................61
AEMFineFinishSprayTips..........................61
AEFFineFinishPre-OriceSpray
Tips...............................................62
RoundSprayTips........................................63
RecommendedFilterSizes...........................64
RepairKitsandAccessories................................65
GunAccessories..........................................65
InlineFluidFilterKitAccessories...................65
OperatorAccessories...................................66
SystemAccessories.....................................66
Signs..........................................................66
TestEquipment...........................................66
Hoses.........................................................67
Dimensions........................................................68
TechnicalSpecications......................................69
CaliforniaProposition65.....................................69
GracoProXpWarranty.......................................70
2
3A2495L
Models
Models
Models Models
Part
No.
Part Part
No. No.
kV
kV kV
Display
Display Display
H60T1060
H60M1060
H85T1085
H85M1085
H85T57*
H85M57*
*HighAirFlowGunModels,equippedwithESOn-OffwithAirRestrictorValve,whichlimitsairowtothe
turbine.Forapplicationsthatrequirehighairowattheaircap.
Approvals
Approvals Approvals
85
85
G
II IIII2 22G G
0.24mJT6
Standard
Smart
Standard
Smart
Standard
Smart
FM12ATEX0068
EN50050–1
Ta0°C–50°C
Related
Related Related
Manual
Manual Manual
3A2499
3A7005
307263ProbeandMeter,Instructions
308393
309227
309455TestFixture,HighVoltageProbe,andkVMeter,Instructions
406999
No.
No. No.
Manuals
Manuals Manuals
Description
Description Description
RoundSprayKit,Instructions
QuickAdjustFanValveKit,Instructions
GunWasherKit,Instructions
GunFlushBoxModule,Instructions
VoltageTesterConversionKit,Instructions
3A2495L 3
Warnings
Warnings
Warnings Warnings
Thefollowingwarningsareforthesetup,use,grounding,maintenance,andrepairofthisequipment.The
exclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbolsrefertoprocedure-specic
risks.Whenthesesymbolsappearinthebodyofthismanual,referbacktotheseWarnings.Product-specic
hazardsymbolsandwarningsnotcoveredinthissectionmayappearthroughoutthebodyofthismanual
whereapplicable.
WARNING
WARNING WARNING
FIRE,
EXPLOSION,
FIRE, FIRE,
EXPLOSION, EXPLOSION,
Flammablefumes,suchassolventandpaintfumes,inwork work
Paintorsolventowingthroughtheequipmentcancausestaticsparking.Tohelpprevent
re,explosion,andelectricshock:
•Electrostaticequipmentmustbeusedonlybytrained,qualiedpersonnelwhounderstand
therequirementsofthismanual.
•Groundallequipment,personnel,objectbeingsprayed,andconductiveobjectsinorcloseto
sprayarea.Resistancemustnotexceed1megohm.SeeGrounding Grounding
•OnlyusegroundedGracoconductiveairsupplyhoses.
•Donotusepaillinersunlesstheyareconductiveandgrounded.
Stop
•Stop Stop
•Checkgunresistance,hoseresistance,andelectricalgroundingdaily.
•Useandcleanequipmentonlyinwellventilatedarea.
•Interlockthegunairanduidsupplytopreventoperationunlessventilationairowisabove
•UseonlyGroupIIAorGroupDmaterials.
•Usecleaningsolventswithhighestpossibleashpointwhenushingorcleaningequipment.
•Neversprayorushsolventathighpressure.
•Tocleantheexterioroftheequipment,cleaningsolventsmusthaveaashpointatleast15°
•Alwaysturntheelectrostaticsoffwhenushing,cleaningorservicingequipment.
•Eliminateallignitionsources;suchaspilotlights,cigarettes,portableelectriclamps,and
•Donotplugorunplugpowercordsorturnlightsonoroffwhenammablefumesarepresent.
•Keepworkareafreeofdebris,includingsolvent,ragsandgasoline.
•Keepthesprayareacleanatalltimes.Usenon-sparkingtoolstocleanresiduefromthe
•Keepaworkingreextinguisherintheworkarea.
operation
operation operation
equipmentuntilyouidentifyandcorrecttheproblem.
theminimumrequiredvalue.
Cor59°Faboveambienttemperature.Non-ignitableuidsarepreferred.
plasticdropcloths(potentialstaticsparking).
boothandhangers.
AND
ELECTRIC
AND AND
ELECTRIC ELECTRIC
immediately
immediately immediately
ifstaticsparkingoccursoryoufeelashock.Donotuse
SHOCK
SHOCK SHOCK
HAZARD
HAZARD HAZARD
work
area
area area
canigniteorexplodee.
Grounding
instructions.
4
3A2495L
WARNING
WARNING WARNING
SKIN
INJECTION
SKIN SKIN
INJECTION INJECTION
High-pressureuidfromgun,hoseleaks,orrupturedcomponentswillpierceskin.Thismay
looklikejustacut,butitisaseriousinjurythatcanresultinamputation.Get Get
treatment.
treatment. treatment.
•Donotspraywithouttipguardandtriggerguardinstalled.
•Engagetriggerlockwhennotspraying.
•Donotpointgunatanyoneoratanypartofthebody.
•Donotputyourhandoverthespraytip.
•Donotstopordeectleakswithyourhand,body,glove,orrag.
•FollowthePressure Pressure
orservicingequipment.
•Tightenalluidconnectionsbeforeoperatingtheequipment.
•Checkhosesandcouplingsdaily.Replacewornordamagedpartsimmediately.
HAZARD
HAZARD HAZARD
Get
immediate
immediate immediate
Pressure
Relief
Procedure
Relief Relief
Procedure Procedure
whenyoustopsprayingandbeforecleaning,checking,
Warnings
surgical
surgical surgical
3A2495L 5
Warnings
WARNING
WARNING WARNING
EQUIPMENT
EQUIPMENT EQUIPMENT
Misusecancausedeathorseriousinjury.
•Donotoperatetheunitwhenfatiguedorundertheinuenceofdrugsoralcohol.
•Donotexceedthemaximumworkingpressureortemperatureratingofthelowestrated
systemcomponent.SeeTechnical Technical
•Useuidsandsolventsthatarecompatiblewithequipmentwettedparts.SeeTechnical Technical
Specications
Specications Specications
Forcompleteinformationaboutyourmaterial,requestSafetyDataSheets(SDSs)from
yourdistributororretailer.
•Donotleavetheworkareawhileequipmentisenergizedorunderpressure.
•TurnoffallequipmentandfollowthePressure Pressure
•Checkequipmentdaily.Repairorreplacewornordamagedpartsimmediatelywithgenuine
manufacturer’sreplacementpartsonly.
•Donotalterormodifyequipment.Alterationsormodicationsmayvoidagencyapprovals
andcreatesafetyhazards.
•Makesureallequipmentisratedandapprovedfortheenvironmentinwhichyouareusingit.
•Useequipmentonlyforitsintendedpurpose.Callyourdistributorforinformation.
•Routehosesandcablesawayfromtrafcareas,sharpedges,movingparts,andhotsurfaces.
•Donotkinkoroverbendhosesorusehosestopullequipment.
•Keepchildrenandanimalsawayfromworkarea.
•Complywithallapplicablesafetyregulations.
PLASTIC
PLASTIC PLASTIC
Manycleaningsolventscandegradeplasticpartsandcausethemtofail,whichcouldcause
seriousinjuryorpropertydamage.
MISUSE
MISUSE MISUSE
PARTS
PARTS PARTS
HAZARD
HAZARD HAZARD
Technical
inallequipmentmanuals.Readuidandsolventmanufacturer’swarnings.
CLEANING
CLEANING CLEANING
SOLVENT
SOLVENT SOLVENT
Specications
Specications Specications
Pressure
HAZARD
HAZARD HAZARD
Relief
Relief Relief
inallequipmentmanuals.
Procedure
Procedure Procedure
whenequipmentisnotinuse.
Technical
•Useonlycompatiblesolventstocleanplasticstructuralorpressure-containingparts.
•SeeTechnical Technical
TOXIC
TOXIC TOXIC
Toxicuidsorfumescancauseseriousinjuryordeathifsplashedintheeyesoronskin,
inhaled,orswallowed.
•ReadSafetyDataSheet(SDS)toknowthespecichazardsoftheuidsyouareusing.
•Storehazardousuidinapprovedcontainers,anddisposeofitaccordingtoapplicable
PERSONAL
PERSONAL PERSONAL
Wearappropriateprotectiveequipmentwhenintheworkareatohelppreventseriousinjury,
includingeyeinjury,hearingloss,inhalationoftoxicfumes,andburns.Thisprotective
equipmentincludesbutisnotlimitedto:
•Protectiveeyewear,andhearingprotection.
•Respirators,protectiveclothing,andglovesasrecommendedbytheuidandsolvent
Technical
thesolventmanufacturerforinformationandrecommendationsaboutcompatibility.
FLUID
FLUID FLUID
guidelines.
manufacturer.
Specications
Specications Specications
OR
FUMES
OR OR
FUMES FUMES
PROTECTIVE
PROTECTIVE PROTECTIVE
inallequipmentmanualsformaterialsofconstruction.Consult
HAZARD
HAZARD HAZARD
EQUIPMENT
EQUIPMENT EQUIPMENT
6 3A2495L
GunOverview
Gun
Gun Gun
How
How How
Works
Works Works
Thisisnotanairspraygun.Tohelpprevent
seriousinjuryfrompressurizeduid,suchasskin
injection,andsplashinguid,readandfollowthe
Skin
Skin Skin
Theair-assistedsprayguncombinesairlessand
airsprayingconcepts.Thespraytipatomizes
andshapestheuidintoafanpattern,asdoes
aconventionalairlessspraytip.Airfromtheair
capfurtheratomizestheuidandcompletesthe
atomizationoftheuidtailstoproduceauniform
pattern.
Asthegunistriggered,partoftheregulatedair
operatesthealternatorturbineandtherestofthe
airhelpsatomizetheuidbeingsprayed.The
Overview
Overview Overview
the
Electrostatic
the the
Electrostatic Electrostatic
Injection
Injection Injection
Hazard
Hazard Hazard
Warnings
Warnings Warnings
AA
AA AA
Spray
Spray Spray
onpage5.
Gun
Gun Gun
alternatorgeneratespower,whichisconvertedby
thepowercartridgetosupplyhighvoltagetothe
gun’selectrode.
Theuidiselectrostaticallychargedasitpasses
theelectrode.Thechargeduidisattractedtothe
groundedworkpiece,wrappingaroundandevenly
coatingallsurfaces.
Theregulatedairthatisdirectedtotheaircapcan
befurthercontrolledusingthegun’satomizingair
adjustmentvalve.Thisvalvecanbeusedtorestrict
airowtotheaircapwhilemaintainingsufcientair
owtothealternator.Theatomizingairadjustment
valvedoesnotcontrolpatternwidth.Tochange
patternwidth,useanewtipsize,orusethefan
adjustmenttonarrowthepatternwidth.
Thehighworkinguidpressureofthisgunprovides
thepowerneededtoatomizehighersolidsmaterials.
NOTE:
NOTE: NOTE:
gun’satomizingairadjustmentvalvecompletelyoff.
Closingthisvalvedoesnotaffectalternatoroperation.
Forairlessatomization,ifdesired,turnthe
3A2495L
7
GunOverview
Controls,
Controls, Controls,
Theelectrostaticgunincludesthefollowingcontrols,indicators,andcomponents(seeFig.1).Forinformation
onSmartguns,alsoseeSmartGuns,page9.
Figure1GunOverview
Item
Item Item
A
Indicators,
Indicators, Indicators,
Description
Description Description
AirSwivelInlet1/4npsm(m)left-handthread,forGracogroundedairsupplyhose.
and
Components
and and
Components Components
Purpose
Purpose Purpose
BFluidInlet
C
D
EElectrode
FFanAirAdjustmentValve
G
H
J
K
LInlineFluidFilter
TurbineAirExhaust
AirCap/TipGuardand
SprayTip
AtomizingAirAdjustment
Valve
TriggerSafetyLockLockstriggertopreventgunfromspraying.
ESOn-OffValveTurnselectrostaticsON(I)orOFF(O).
ESIndicator(standard
gunonly;forSmart
gunindicator,see
OperatingMode,page9)
1/4npsm(m),foruidsupplyhose.
Barbedtting,forsuppliedexhausttube.
SeeSprayTipSelectionChart,page61,foravailablesizes.
Supplieselectrostaticchargetotheuid.
Adjustsfansizeandshape.Canbeusedtodecreasepatternwidth.
Adjustsatomizingairow.
LitwhenESisON(I).Colorindicatesalternatorfrequency.Seethe
LEDindicatortableintheGunSetupProcedure,page21.
Providesnalltrationofuid.Locatedinsideuidtubetting.
8 3A2495L
GunOverview
Smart
Smart Smart
TheSmartGunmoduledisplayssprayingvoltage,
current,alternatorspeed,andthevoltagesetting(low
orhigh).Italsoallowstheusertochangetoalower
sprayingvoltage.Themodulehastwomodes:
•OperatingMode
•DiagnosticMode
Operating
Operating Operating
Bar
Bar Bar
SeeFig.2andSmartGunKey,page11.The
OperatingModedisplaysgundataduringnormal
spraying.Thedisplayusesabargraphtoshowthe
voltagelevelinkiloVolts(kV)andthecurrentlevelin
microAmperes(uA).Thebargraphrangeisfrom0
to100%foreachvalue.
IftheuAbargraphLEDsareblue,thegunisready
tospray.IftheLEDsareyelloworred,thecurrentis
toohigh.Theuidmaybetooconductive,orsee
ElectricalTroubleshooting,page37forotherpossible
causes.
Guns
Guns Guns
Mode
Mode Mode
Graph
Graph Graph
Voltage
Voltage Voltage
Thevoltageadjustmentswitch(VA)allowsthe
operatortochangefromlowtohighvoltage.
•Thehighvoltagesettingisdeterminedbythe
maximumvoltageofthegunandisnotadjustable.
•Thelowvoltageindicator(LO)lights
whentheswitchissettoLO.Thelow
voltagesettingisuseradjustable.See
AdjustingtheLowVoltageSetting,page10.
NOTE:
NOTE: NOTE:
haslostcommunicationwiththepowersupply.See
ErrorDisplay,page10,forfurtherinformation.
Adjustment
Adjustment Adjustment
IftheErrordisplayappears,theSmartmodule
Switch
Switch Switch
Hz
Indicator
Hz Hz
Indicator Indicator
TheHzindicatorfunctionsthesameastheES
indicatoronstandardguns.Theindicatorlightsto
showthealternatorspeedstatus,andhasthree
colors:
•Greenindicatesthealternatorspeediscorrect.
•Iftheindicatorchangestoamberafteronesecond,
increasetheairpressure.
•Iftheindicatorchangestoredafteronesecond,
theairpressureistoohigh.Decreaseairpressure
untiltheindicatorisgreen.Tomaintainahigher
airpressure,installESOn/OffValveRestrictorKit
26A294.Then,adjustthepressureasneededto
ensuretoensuretheindicatorremainsgreen.
Figure2SmartGunModuleinOperatingMode
3A2495L 9
GunOverview
Error
Error Error
IftheSmartmodulelosescommunicationwith
thepowersupply,theErrordisplayappears,the
Hzindicatorturnsred,andtheSmartmoduleis
disabled.SeeFig.3andSmartGunKey,page11.
ThiscanoccurinOperatingModeorDiagnostic
Mode.SeeElectricalTroubleshooting,page37.
CommunicationmustberestoredtomaketheSmart
modulefunctional.
NOTE:
NOTE: NOTE:
appear.Ifthegunhasbeendisassembled,wait8
secondsbeforesprayingtoensurethatanError
conditionhasnotoccurred.
NOTE:
NOTE: NOTE:
displaywillnotappear.
Display
Display Display
Ittakes8secondsfortheErrordisplayto
Ifthereisnopowertothegun,theError
foryourgun.Continuepressingthebuttonuntilyou
reachthedesiredsetting.
NOTE:
NOTE: NOTE:
returntotheOperatingScreen.
NOTE:
NOTE: NOTE:
LockSymbol,page10.
Figure4LowVoltageSettingScreen(Unlocked)
Lock
Lock Lock
After2secondsofinactivitythedisplaywill
Thelowvoltagesettingmaybelocked.See
Symbol
Symbol Symbol
Figure3ErrorDisplay
Adjusting
Adjusting Adjusting
Thelowvoltagesettingisuseradjustable.Toaccess
thelowvoltagesettingscreenwheninOperating
Mode,presstheLOSETbutton(LS)momentarily.
Thescreenwilldisplaythecurrentlowvoltage
setting.SeeFig.4andSmartGunKey,page11.
Thepossiblerangesare:
•85kVguns:40–85kV
•60kVguns:30–60kV
SettheVoltageAdjustmentswitch(VA)toLO.Press
theLOSETbuttonrepeatedlytoincreasethesetting
inincrementsof5.Whenthedisplayreachesthe
maximumsettingitwillreturntotheminimumsetting
the
Low
the the
Voltage
Low Low
Voltage Voltage
Setting
Setting Setting
Thelowvoltagesettingmaybelocked.Whenlocked,
animage(LK)appearsonthescreen.SeeFig.5
andSmartGunKey,page11.
•WheninHImode,thelowvoltagesettingisalways always
locked.ThelocksymbolwillappearwhentheLO
SETbuttonispressed.
•WheninLOmode,thelocksymbolwill
only
only only
appearifthelockisenabled.See
LowVoltageLockScreen,page13,tolockor
unlockthelowvoltagesetting.
Figure5LowVoltageSettingScreen(Locked)
always
10 3A2495L
GunOverview
Smart
Smart Smart
Table
Table Table
Item
Item Item
VA
LO
kV
uA
LSLOSETbuttonPressmomentarilytoentertheLowVoltageSettingscreen.
Gun
Key
Gun Gun
Key Key
Key
for
Figs.
1 11Key Key
for for
Description
Description Description
VoltageAdjustmentSwitchTwo-positionswitchsetsSmartgunvoltagetolowsetting(LO)or
LowVoltageMode
Indicator
Voltage(kV)DisplayDisplaysactualsprayingvoltageofthegun,inkV.InOperatingMode,
Current(uA)DisplayDisplaysactualsprayingcurrentofthegun,inuA.InOperatingMode,
2–9.
Figs. Figs.
2–9. 2–9.
Purpose
Purpose Purpose
highsetting(HI).ThisswitchisfunctionalinOperatingModeandin
DiagnosticMode.
Lights(blue)whentheSmartgunissettoLowVoltage.
displayisabargraph.InDiagnosticMode,voltageisdisplayedas
anumber.
displayisabargraph.InDiagnosticMode,currentisdisplayedas
anumber.
Pressandholdforapproximately5secondstoenterorexitDiagnostic
Mode.
WhileinDiagnosticMode,pressmomentarilytoadvancethrough
screens.
WhileontheLowVoltageLockScreen(inDiagnosticMode),press
andholdtoturnthelockonoroff.
LVLowVoltageDisplayDisplaysthelowvoltagesettingasanumber.Thesettingcanbe
changed.SeeFig.4.
LKLowVoltageLocked
LD
ERErrorDisplay
VIVoltageIndicator
CICurrentIndicatorInDiagnosticMode,thetwobottomrightLEDsofthescreenlight,
ASAlternatorSpeedDisplayInDiagnosticMode,Hzlevelisdisplayedasanumber.SeeFig.8.
Hz
LODisplayAppearsontheLowVoltageLockScreen.SeeFig.9.
AlternatorSpeedIndicatorInOperatingMode,indicatorcolorvariestoshowthealternatorspeed
Appearsifthelowvoltagesettingislocked.SeeFig.5andFig.9.
AppearsiftheSmartmodulelosescommunicationwiththepower
supply.SeeFig.3.
InDiagnosticMode,thetwotoprightLEDsofthescreenlight,
indicatingthatthevaluedisplayedisinkV.SeeFig.6.
indicatingthatthevaluedisplayedisinuA.SeeFig.7.
status:
•Greenindicatesthealternatorspeedisatthecorrectlevel.
•Iftheindicatorchangestoamberafteronesecond,thealternator
speedistoolow.
•Iftheindicatorchangestoredafteronesecond,thealternatorspeed
istoohigh.TheindicatoralsoturnsrediftheErrordisplayappears.
InDiagnosticMode,theindicatorisgreenwhenintheAlternator
Speed(Hertz)screen.
3A2495L
11
GunOverview
Diagnostic
Diagnostic Diagnostic
DiagnosticModeincludesfourscreenswhichdisplay
gundata:
•Voltage(kiloVolts)Screen
•Current(microAmperes)Screen
•AlternatorSpeed(Hertz)Screen
•LowVoltageLockScreen
NOTE:
NOTE: NOTE:
lowvoltagesetting;thesettingisnotadjustablein
DiagnosticMode.However,thevoltageadjustment
switch(VA)canbesettoHIorLOinOperatingMode
andinDiagnosticMode.
ToenterDiagnosticMode,pressandholdtheLOSET
(LS)buttonforapproximately5seconds.Thedisplay
willgototheVoltage(kiloVolts)Screen,page12.
Toadvancetothenextscreen,presstheLOSET
buttonagain.
ToexitDiagnosticMode,pressandholdtheLOSET
buttonforapproximately5seconds.Thescreenwill
returntoOperatingMode.
NOTE:
NOTE: NOTE:
Mode,thelastscreenviewedwillbedisplayedwhen
thegunisretriggered.
NOTE:
NOTE: NOTE:
fromtheLowVoltageLockScreen.See
LowVoltageLockScreen,page13fordetails.
Mode
Mode Mode
YoumustbeinOperatingModetoadjustthe
IfthegunisdetriggeredwhileinDiagnostic
DiagnosticModecannotbeexited
Figure6Voltage(kiloVolts)Screen
Current
Current Current
TheCurrent(microAmperes)Screenisthesecond
screenintheDiagnosticMode.SeeFig.7and
SmartGunKey,page11.Toenterthisscreen,press
theLOSETbuttonwhileintheVoltage(kiloVolts)
Screen.
Thisscreendisplaysthesprayingcurrentofthegun
asanumber(uA),roundedtothenearest5uA.The
twobottomrightLEDs(CI)ofthedisplaypanellight,
indicatingthattheCurrent(microAmperes)Screen
isdisplayed.Thedisplayisareadoutandcannot
bechanged.
(microAmperes)
(microAmperes) (microAmperes)
Screen
Screen Screen
Voltage
Voltage Voltage
TheVoltage(kiloVolts)Screenistherstscreento
appearafterenteringDiagnosticMode.SeeFig.6
andSmartGunKey,page11.Toenterthisscreen,
pressandholdtheLOSETbuttonforapproximately
5secondswhileintheOperatingMode.
Thisscreendisplaysthesprayingvoltageofthe
gunasanumber(kV),roundedtothenearest5kV.
ThetwotoprightLEDs(VI)ofthedisplaypanel
light,indicatingthattheVoltage(kiloVolts)Screen
isdisplayed.Thedisplayisareadoutandcannot
bechanged.
PresstheLOSETbuttontoadvancetothe
Current(microAmperes)Screen,page12.Press
andholdforapproximatelyvesecondstoreturnto
OperatingMode.
(kiloVolts)
(kiloVolts) (kiloVolts)
Screen
Screen Screen
PresstheLOSETbuttontoadvancetothe
AlternatorSpeed(Hertz)Screen,page13.Press
andholdforapproximatelyvesecondstoreturnto
OperatingMode.
Figure7Current(microAmperes)Screen
12
3A2495L
GunOverview
Alternator
Alternator Alternator
TheAlternatorSpeed(Hertz)Screenisthethird
screenintheDiagnosticMode.SeeFig.8and
SmartGunKey,page11.Toenterthisscreen,
presstheLOSETbuttonwhileintheCurrent
(microAmperes)Screen.
Thisscreendisplaysthealternatorspeedasa3digit
number(AS),roundedtothenearest10Hz.The
displayisareadoutandcannotbechanged.Ifthe
alternatorspeedisgreaterthan999Hz,thedisplay
willshow999.
TheHzindicatorlightsgreentoshowthatyouare
viewingtheAlternatorSpeed(Hertz)Screen.
PresstheLOSETbuttontoadvancetothe
LowVoltageLockScreen,page13.Pressandhold
forapproximately5secondstoreturntoOperating
Mode.
Speed
Speed Speed
(Hertz)
(Hertz) (Hertz)
Screen
Screen Screen
Low
Voltage
Low Low
Voltage Voltage
TheLowVoltageLockScreenisthefourth
screenintheDiagnosticMode.SeeFig.9and
SmartGunKey,page11.Toenterthisscreen,press
theLOSETbuttonwhileintheAlternatorSpeed
(Hertz)Screen.
ThisscreendisplaysthestatusoftheLowVoltage
Lock.Ifthesettingislocked,thelockimage(LK)
appearstotheleftoftheLodisplay(LD).Ifthesetting
isunlocked,thelockimagedoesnotappear.
Tochangethelockstatus,pressandholdthe
LOSETbuttonuntilthelockimageappearsor
disappears.Ifthelockisset,theimagewillalso
appearontheLowVoltageSettingScreenwhenin
lowvoltagemode(seeFig.4).
NOTE:
NOTE: NOTE:
screen,becausepressingandholdingtheLOSET
buttonisusedtoturnthelockonoroff.Toexit,
pressLOSETmomentarilytoreturntotheVoltage
(kiloVolts)Screen,thenexitDiagnosticModefrom
there.
DiagnosticModecannotbeexitedfromthis
Lock
Screen
Lock Lock
Screen Screen
Figure8AlternatorSpeed(Hertz)Screen
Figure9LowVoltageLockScreen
3A2495L 13
Installation
Installation
Installation Installation
Installingandservicingthisequipmentrequires
accesstopartswhichmaycauseelectricshock
orotherseriousinjuryifworkisnotperformed
properly.
•Donotinstallorservicethisequipmentunless
youaretrainedandqualied.
•Besureyourinstallationcomplieswithlocal,
state,andnationalcodesfortheinstallation
ofelectricalapparatusinaClassI,Div.I,
hazardouslocationoraGroupII,ZoneI
explosiveatmospherelocation.
•Complywithalllocalcodesandregulations.
Fig.10(TypicalInstallation)showsatypical
electrostaticair-assistedspraysystem.Itisnotan
actualsystemdesign.Forassistanceindesigning
asystemtosuityourparticularneeds,contactyour
Gracodistributor.
Warning
Warning Warning
Sign
Sign Sign
Ventilate
Ventilate Ventilate
Donotoperatethegununlessventilatingairowis
abovetheminimumrequiredvalue.Providefresh
airventilationtoavoidthebuildupofammableor
toxicvaporswhenspraying,ushing,orcleaning
thegun.Interlockthegunairanduidsupply
topreventoperationunlessventilatingairowis
abovetheminimumrequiredvalue.
Thesprayboothmusthaveaventilationsystem.
Electricallyinterlockthegunairanduidsupplywith
theventilatorstopreventgunoperationanytimethat
theventilationairowfallsbelowminimumvalues.
Checkandfollowalllocalcodesandregulations
regardingairexhaustvelocityrequirements.Verify
theoperationoftheinterlockatleastonceayear.
NOTE:Theminimumallowableairexhaust
velocityis60feet/minute(19linearmeters/minute).
High-velocityairexhaustwilldecreasetheoperating
efciencyoftheelectrostaticsystem.
the
Spray
the the
Spray Spray
Booth
Booth Booth
Mountwarningsignsinthesprayareawherethey
caneasilybeseenandreadbyalloperators.An
EnglishWarningSignisprovidedwiththegun.
14
3A2495L
Air
Supply
Air Air
Supply Supply
Toreducetheriskofelectricshock,theairsupply
hosemustbeelectricallyconnectedtoatrueearth
ground.Use Use
Hose.
Hose. Hose.
1.SeeFig.10.UsetheGracoGroundedAirSupply
Hose(AH)tosupplyairtothegun.Thegunair
inletttinghasaleft-handthread.Theairsupply
hosegroundwire(AG)mustbeconnectedtoa
trueearthground.Donotconnecttheairsupply
hosetothegunairinletyet.
2.Installanairlinelter/waterseparator(AF)onthe
gunairlinetoensureadry,cleanairsupplytothe
gun.Dirtandmoisturecanruintheappearance
ofyournishedworkpieceandcancausethe
guntomalfunction.
Toreducetheriskofseriousinjurydueto
componentrupture,includingskininjection,
pumppressuremustbelimitedbythepumpair
regulator.Donotrelyonthegunuidregulator
tolimittheuidpressuretothegun.
Line
Line Line
Use
only
Graco
only only
Graco Graco
Grounded
Grounded Grounded
Air
Supply
Air Air
Supply Supply
Installation
4.Installableed-typeairvalve(BV)onthepump
airsupplyline.Thebleed-typeairvalve(BV)is
requiredinyoursystemtoshutoffairtothepump
andrelieveairtrappedbetweenthevalveand
thepumpaftertheairregulatorisshutoff.Install
anadditionalbleed-typeairvalveonthemainair
line(MA)toisolatetheaccessoriesforservicing.
5.Installanairbleedvalve(BV)oneachgunair
supplylinetoshutoffairtothegun(s)andrelieve
airtrappedbetweenthevalveandthegunafter
theairregulatorisshutoff.
Fluid
Fluid Fluid
1.Blowouttheuidline(FL)withairandushit
2.Installauidpressureregulator(FR)ontheuid
3.Installauidlter(FF)nearthepumpoutlet,to
Supply
Supply Supply
withsolvent.Usesolventwhichiscompatible
withtheuidtobesprayed.Donotconnectthe
uidsupplylinetothegunuidinletyet.
linetocontroluidpressuretothegun.
removeparticlesandsedimentwhichcouldclog
thespraynozzle.
NOTE:
NOTE: NOTE:
additionalltration.
Thegunincludesaninlineuidlterfor
Line
Line Line
Theuidsupplypumpmustbepreventedfrom
producingauidpressuregreaterthanthe
3000psi(21MPa,210bar)
Fluid Pressure
supplypressuretoa30:1ratiopumpmustnot
exceed100psi(0.7MPa,7bar).
3.Installbleed-typeairregulators(PR,GR)on
thepumpandgunairsupplylinestocontrolair
pressuretothepumpandgun.
Trappedaircancausethepumptocycle
unexpectedly,whichcanresultinserious
injury,includingskininjectionandsplashing
uidintheeyesorontheskin.Donotoperate
theequipmentwithoutthebleed-typeairvalve
(BV)installed.
ofthegun.Forexample,theair
Maximum Working
Toreducetheriskofseriousinjury,including
skininjectionandsplashinguidintheeyesor
ontheskin,donotoperateequipmentwithout
theuiddrainvalve(FD)installed.
4.Theuiddrainvalve(FD)isrequiredinyour
systemtoassistinrelievinguidpressureinthe
displacementpump,hose,andgun.Triggering
theguntorelievepressuremaynotbesufcient.
Installadrainvalveclosetothepump'suid
outlet.
3A2495L 15
Installation
NON
HAZARDOUS
NON NON
- --HAZARDOUS HAZARDOUS
LOCATION
LOCATION LOCATION
HAZARDOUS
HAZARDOUS HAZARDOUS
LOCATION
LOCATION LOCATION
Figure10TypicalInstallation
Typical
Typical Typical
Item
Item Item
AF
AG*GunAirHoseGroundWire
AH*GracoGroundedAirHose(left-hand
ALPumpAirLineLubricator
BV*PumpBleed-TypeAirShutoffValve
EGElectrostaticAirSprayGun
FD*
FFFluidFilter
FGFluidPressureGauge
FL
FRFluidPressureRegulator
Installation
Installation Installation
Description
Description Description
AirFilter/WaterSeparator
threads)
FluidDrainValve
FluidSupplyLine
Key
Key Key
Item
Item Item
FV
GRGunAirPressureRegulator
MA
PG*PumpGroundWire
PRPumpAirPressureRegulator
RVPumpRunawayValve
SPSupplyPump
SV*VentilationFanInterlockSolenoidValve
*Theseitemsarerequiredforsafeoperation.They
mustbepurchasedseparately.
Description
Description Description
FluidShutoffValve
MainAirSupplyLine
NOTE:
NOTE: NOTE:
aGracoaccessory.
Thesolenoidvalveisnotofferedas
16 3A2495L
Grounding
Grounding Grounding
Theequipmentmustbegroundedtoreducethe
riskofstaticsparkingandelectricshock.Electric
orstaticsparkingcancausefumestoigniteor
explode.Impropergroundingcancauseelectric
shock.Groundallequipment,personnel,objects
beingsprayed,andconductiveobjectsinorclose
tothesprayarea.Theresistancemustnotexceed
1megohm.Groundingprovidesanescapewire
fortheelectriccurrent.
Whenoperatingtheelectrostaticgun,any
ungroundedobjects(suchaspeople,containers,and
tools)inthespraylocationcanbecomeelectrically
charged.
Thefollowingareminimumgroundingrequirements
forabasicelectrostaticsystem.Yoursystemmay
includeotherequipmentorobjectswhichmustbe
grounded.Yoursystemmustbeconnectedtoa
trueearthground.Checkgroundconnectionsdaily.
Checkyourlocalelectricalcodesandregulationsfor
detailedgroundinginstructions.
•
Electrostatic Air-Assisted Spray Gun:
thegunbyconnectingtheGracoGrounded
AirHosetothegun,andconnectingtheair
hosegroundwiretoatrueearthground.See
CheckGunElectricalGrounding,page24.
•
Pump/uid source:
byconnectingitsgroundwiretoatrueearth
ground.
Groundthepump/uidsource
Installation
Ground
All persons entering the spray area:
•
shoeshavingconductivesolessuchasleather,
orwearpersonalgroundingstraps.Donot
wearshoeswithnon-conductivesolessuchas
rubberorplastic.Ifglovesarenecessary,wear
theconductiveglovessuppliedwiththegun.If
non-Gracoglovesareworn,cutoffngersorpalm
areaofglovestoensureyourhandcontactsthe
groundedgunhandle.Conductiveglovesand
footwearmustnotexceed100megohmperEN
ISO20344,EN1149–5.
•
Object being sprayed:
cleanandgroundedatalltimes.
Keeptheworkpiecehangers
mustwear
•
All electrically conductive objects or devices in the
spray area:
•
Fluid and waste containers:
wastecontainersinthesprayarea.Donotusepail
linersunlesstheyareconductiveandgrounded.
Whenushingthespraygun,thecontainerused
tocatchtheexcessuidmustbeelectrically
conductiveandgrounded.
Air compressors:
•
tothemanufacturer'srecommendations.
•
All air and uid lines
Useonlygroundedhoseswithamaximumof100
feet(30.5m)combinedhoselengthtoensure
groundingcontinuity
The oor of the spray area:
•
conductiveandgrounded.Donotcovertheoor
withcardboardoranynon-conductivematerial
whichwouldinterruptgroundingcontinuity
mustbeproperlygrounded.
Groundalluidand
Groundtheequipmentaccording
mustbeproperlygrounded.
mustbeelectrically
3A2495L
17
Installation
•
Flammable liquids in the spray area:
inapproved,groundedcontainers.Donotuse
mustbekept
plasticcontainers.Donotstoremorethanthe
quantityneededforoneshift.
•
All solvent pails:
metalcontainers,whichareconductive.Donot
useplasticcontainers.Useonlynon-ammable
solvents.Donotstoremorethanthequantity
neededforoneshift.
Useonlyapproved,grounded
18 3A2495L
Installation
Figure11GroundtheOperatorOperatorisgroundedthroughthegunhandleand
conductiveshoes.
Figure12GroundtheObjectbeingSprayedObjectbeingsprayedisgroundedthroughcontact
withthehangerandconveyorsystem.
3A2495L 19
Installation
Figure13GroundtheGunGunisgroundedthroughtheconductiveairhose.
Figure14GroundtheFluidSupplyFluidsupplylineandsourcemustbegrounded.
20 3A2495L
GunSetup
Gun
Gun Gun
Gun
Gun Gun
Seethegurebelowtolocatetheelectrostaticgun
controls.
Figure15ElectrostaticGunControls
1.TurnOFF(O)theESOn-Offswitch(J).
Setup
Setup Setup
Setup
Setup Setup
Procedure
Procedure Procedure
4.ConnecttheGracogroundedairhosetothegun
airinlet.Thegunairinletttinghasleft-hand
threads.
5.FollowallstepsunderGrounding,page17.
6.Followallstepsunder
CheckGunElectricalGrounding,page24.
Readingmustbelessthan1megohm.
7.Verifythatthematerialresistivitymeets
requirementsforelectrostaticspray.See
CheckFluidResistivity,page25.
8.Connecttheexhausttubeandsecurewiththe
clampprovided.
2.Shutofftheairbleedvalvetothegun.
3.Checkgunresistance.See
TestGunResistance,page32.
9.Connecttheuidhosetothegunuidinlet.
10.Flushifneeded.SeeFlushing,page28.
3A2495L
21