Graco EM 490 Operation manual

INSTRUCTIONS-PARTS LIST e 387-735
This manual contains IMPORTANT ORACO
READ AND RETAIN FOR REFERENCE
WARNINGS and INSTRUCTIONS
Rev. D
SUPERSEDES C
.EM 480@ PORTABLEE~LECTRI@/AIIRLESS
PAINT SBRAYER
2759 psi f 150 ber) MAXIMUM WORKING PRESSURE
U.S. Patent 4,323,741
Sprayer less hose, gun, RAC 111, and spray tip.
Model 231002, Series A
WARNING 2
Aluminum and Zinc MaterialHazard
Never use 1,1,1-trichloroethane,methylene chloride, other halogenated hydrocarbon solvents or fluidscontaining
such solventsinthis equipment. Such
use couldresult in a serious chemical reaction,withthe possibility of explo-
sion, which couldcause death, serious bodily injury and/or substantial property damage.
Consult yourfluid suppliers to ensure that
the fluids being used are compatiblewith aluminum and zinc parts.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS. MN 55400-1444
0 COPYRIGHT 1985, GRACOINC.

HIGH PRESSURE SPRAY CAM CAUSE SERIOUS INJURY.
FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.
Read and understand all instruction manuals before operating equipment.
FLUlD IMJECTlON HAZARD
General Safety
This equipmentgenerates veryhighfluidpressure. Sprayfrom
the gun,leaksor ruptured components can injectfluid
through your skinand into your body andcause extremely
serious bodilyinjury, including theneed for amputation. Also,
fluid injected orsplashed into the eyes or onthe skincan
cause serious damage.
body. NEVER put hand or fingers over the spray tip. NEVER
NEVER point the spray gun at anyone or at any pert of the
try to "blow back" paint; this is NOT an air spray system.
ALWAYS have the tip guard inplace on the spray gun when
spraying.
ALWAYSfollowthePressureReliefProcedure. below,
before cleaningor removing the spray tip orservicingany
system equipment.
NEVER try toatop or deflect leaks with your hand or body.
before each
use.
Be sure equipment safetydevicesare ooerating properly
Medical Alert-Airless Sarav Waunds
-.
W any fluid appears to penetrate your skin, get EMERGENCY
SIMPLE CUT. Tell the donor exactly what fluidwas injected.
MEDICAL CARE AT ONCE. DO NOTTREAT ASA
. . . - -. - -. . . . -. ..... --
-r--,
jury. It Is Important to treat the Injury surglcally as soon
Note to Physlclan: Injection in the skin is atraumatic in-
as possible. Do not delay treatment to research toxicity.
direct/y into the bloodsmm. Consultation
with e plastic
Toxicity isa concarn with some exotic coatings injected
surgeon or reconstructivehandsurgeon may beadvisable.
Spray Gun Safety Devices
each
use. 00 not remove or modify any part of thegun; this
Be sure all gun safety devices are operating properly before
can cause a malfunction and result in serious bodily injury.
Safety Latch
Whenever you stop spraying, even for a moment, always set
the gun safety latch in theclosed or "safe" position, making
thegun inoperative. Failureto set thesafety latchcan resultin
accidental triggering of the gun.
The gun diffuser breaksup sprayand reducesthe risk of injec-
Diffuser
tion when the tip isnot installed. Check diffuser operation
regularly. Follow the PressureReliefProcedure, below,
then remove the spray tip. Aim the gun into a metal pail,
holding the gun firmly to the pail. Using the lowest possible
to an irregular stream, replace the diffuser immediately.
pressure, trigger the gun. If thefluidemittedis notdiffusedin-
Tip Guard
ALWAYS havethe tipguard in place on the spray gun while
and helps reduce,butdoes not prevent, the risk of accidental-
spraying. Thetip guard alerts youto the fluid injection hazard
spray tip.
ly placing your fingers or any part of your body close to the
Always havethe.triggerguardin placeon the gunwhen spray-
Trigger Guard
ina to reducethe risk of accidentallvtriooerino thegun if it is
dripped or bumped.
Spray
Tip Safety
the spraytip clogs while spraying, engagethegun safety latch
Use extreme cautionwhen cleaning or changing spray tips. If
immediately. ALWAYSfollowthePressureReliefPro-
cedure and then remove the spray tip toclean
it.
NEVER wipe off build-uparound the spray tip untilpressure is
fully relieved and the gun safety latch is engaged.
." - -
.. . ..~ ~~
Preeaure Relief Procedure
TO reducathe risk of serious bodilyinjury, Including fluidinjection, splashingfluid or Solventinthe eyes or onthe skin, orinjury
!om moving parB or electric shock, alweys follow thisprocedurewhenever youshut off the sprayer, when checkingor sewic-
the
gun saw latch. (2) Turn theON/OFF switchto OFF. (31 Unplugtfe powersupply cord. (4) Disengagethe gun safety latch.
lngany part of thespray
Syasm, when installing, cleaningor changin spray tips, and whenever you mopspraying. [ 1) Engage
(6) Hold a metsl psrt of the gunfirmly to the side of a grounded metal pail, end triggerthe guntorelieve pressure. (6) Engagethe
gun SafWlatch. (71 Open the pressure relief valve/pmura relief v~lve, having a container ready to catch the drainage. (8)
Leave the p"Jm relief valva/pressure relief valve open untilyou are ready to spray again.
If you SuSPeCt that the spy tip or hare is cumpletsly dogged, or thatprassurahasnotbeen fully relieved after followingthe
steps above, VERY SLOWLY loosenthe tip ~uard retaining nut or hose endcouplingand relieve pressure gradually,thenloosen
completely. Now clear the tipor hose.
..
iNGAGESAFETYTURNSWITCH DISENGAGE
SAFETY
UNPLUG CORD
ENGAGE SAFETY AGAIN PRESSURE RELIEF VALVE
ANDTRIGGERGUN:PRESSURE DRAINVALVE/
TO
OFF
2 307-735

€QU/PMENT MISUSE HAZARD
General Safety
overpressurizing, modifying parts, using incompatible
Any misuse of the spray equipmant or accBsBories, such as
chemicals and fluids, or using wornor damagedparts, can
cause them torupture and result inafluid injection, splashing
explosionor property damage.
in the ayes or onthe skin, or other serious bodily injury, fire,
could cause
it to malfunction.
NEVER alter or modify any part of this equipment; doing so
worn or damaged pans immediately.
CiECK all sprayequipment regularly and repairorreplace
regardingthe use of protective clothing and equipment.
Readandfollow thefluid andsolvent manufacturer'sliterature
System Pressure
This sprayer can develop
2750 psi (190,barJ MAXIMUM
accessoriesare rated to withstand the maximum working
WORKINGPRESSURE. Be sure that all spray equipmentand
pressureof this sprayer. DO NOT exceedthe maximumwork-
system.
ing pressure of any component oraccessory used in the
Fluid and Solvent Compatibility
BE SUREthat all fluids andsolventsusedare chemicallycom-
the back cover. Always read the fluid and solvent manufac-
patible with the wettedparts shown inthe Technical Dataon
turer's literature before using them in this sprayer.
HOSE SAFETY
High pressure fluid inthe hoses can be vary dangerous. If the
damageor misuse, the highpressure sprayemittedfrom it can
hosa develops aleak, split or rupturedue toany kind of waar,
cause a fluid injection injury or other serious bodily injury or
property damage.
ALL FLUID HOSES MUST HAVESPRING GUARDS1The
spring guards help protect the hose
from kinks or bends at or
close to thecoupling which can result in hose rupture.
TIGHTENall fluidconnectionssecurely beforeeach use.High
pressurespray to be emitted from the coupling.
pressure fluid Fan dislodge aloose coupling or allow high
NEVER use a damaged hose. Before each use, check the en-
tirehosefor cuts, leaks, abrasion.bulging cover, or damage or
exist, @lace the hose immediately,
DO NOT try to recouple
movement of the hose couplings. If any of these conditions
highpressure hose ormend
it with tape or anyother device. A
repaired hosecannot contain the high pressure fluid.
HANDLE AND ROUTE HOSES CAREFULLY.
Do not pull on
hosestomove equipment. Do not usefluids or solventswhich
are not compatiblewith the innertube and cover of the hose.
00 NOT exposeGracohose to temperaturesabove 180°F
182"CI or below
4OF (4'C).
Hose Grounding Continuity
Proper hosegrounding continuity is essentialto maintaininga
groundedspray system. Checkthe electrical resistanceof your
air andfluid hoses
at least once a week.If your hose doesnot
havea tagon
it which specifies the maximum electrical
resistance, contact the hose supplier or manufacturerfor the
maximum resistance limits. Use a resistance meterin the ap-
propriate range for your hose to check the resistance. If the
resistanceexceeds the recommended limits, replace it im-
your system hazardous. Also readFIRE OR EXPLOSION
mediately. An ungroundedor poorly groundedhosecanmake
HAZARD.
FIRE OR EXPLOSION.HAZARD
through the pumpand hosa. If every part of the spray equlp-
Static electricity is created by the high velocity flow of fluid
ment is not properly grounded, sparking may occur, and the
systemmay become hazardous. Sparking mayalso occur
when plugging in or unplugging a power supply cord. Sparks
can ignite fumes from solvents and the fluid being sprayed.
dust particlesand other flammable substances, whether you,
are spraying indoors or outdoors, and can cause a fire or ex-
plosion andserious bodily injury and property damage.
Always plug the sprayer into an outlet at least
20 feet 16 m)
away from the sprayer and the spray area. Do not plug in or
any chanceof igniting fumes still in the air.
unplugany powersupply cords in thesprayarea whenthereis
while using this equipment, STOP SPRAYINGIMMEDI-
If you experience any static sparking .or even a slight shock
ATELY. Check the entire system for positive grounding. Do
not usethe systemagain until theproblemhas beenidentified
and corrected.
Grounding
To reducethe risk of static sparking, ground the sprayer and
all other spray equipment used or located in the sprayarea.
CHECK your local electrical code for detailed grounding in-
structions for your area and type of equipment. BE SURE to
ground all of this spray equipment:
1.
2.
3.
4.
5.
6.
7.
Sprayer: plug the power supply cord, or extension cord,
eachequippedwithanundamagedthree-prongplug, into
aproperlygroundedoutlet. Do not useanadapter. All ex-
tension cords must have three wires and be rated for 15
amps.
Fluid hoses: use only groundedhoseswith a maximumof
500 feet 1150 mJcombinedhoselengthtoensure ground-
ing continuity. Refer to Hose Grounding Continuity.
Spray
gun: obtain grounding through connection to a
properly grounded fluid hose and sprayer.
Objectbeing sprayed: accordingto local code.
Fluid supply container: according to local code.
All solvent pails used when flushing, according to locsl
code. Useonlymetalpails, which areconductive. DG not
placethe pailona non-conductivesurface, suchas papor
or cardboard, which interrupts the grounding continuity.
To maintaingrounding coptinuity when flushing or reliev-
ingpressure, alwaysholda metalpanof the gun firmlyto
the side of agrounded metalpail, then trigger the gun.
flushing Safety
Reduce the risk of a fluid iniection injury, static sparking, or
splashing byfollowing the flushing procedure given on page
page
2, andremovethe spray tip beforeflushing. Holdametal
12 of this manual. Followthe Pressure ReliefProcedure on
part of the gun firmlytothe side of agroundedmetalpailand
USB the lowest possible fluid pressureduring flushing.
...
MOVING PARTS HAZARD
Moving pans can pinch or amputate your fingers or other
body pans. KEEPCLEAR
of moving panswhenstarting or
operating the sprayer. Unplug the sprayer,and follow the
Pressure ReliefProcedureon page2 toprevent it from star-
ting accidentally.
IMPORTANT
ticularly the General Standards, Pan 1910, and the Construction Standards, Part 1926-should be consulted.
UnitedStatesGovernmentsafetystandardshave beenadopted underthe OccupationalSafetyand HealthAct, Thesestandards-par.
307-735 3

La pulv6risation B haute pression peut causer des blessures trhs graves.
Rhserv6 exclusivement B I'usage professionnel. Observer toutes les consignes de shcuiith.
Bien lire et bien comprendre tous les manuels d'instructions avant d'utiliser le mathriel.
RISQUES D'INJECTION
Cet.appareilproduit un fluide B tr& haute pression. Le fluide
Consignes gBnBrales de sBcurltB
pulveris4 par
le pistoletou lefluidesou8 pressionprovenantde
fuites ouderupturespeut penetrer sous la peauou B I'interieur
du wrps et entrainer des blessurestrhgraves, voir m8me une
amputation. M4me sans &re sous pression,lefluide Bclabous-
sant ou entrant dans 168 yeux peut aussi entralner des
blessures graves.
tie quelconque du corps. NE JAMAIS mettre la main ou Ies
NEJAMAIS pointer le pistoletversquelqu'un ouvers unepar-
doigts sur I'ajutage du pulvbrisateur. NE JAMAIS essayer de
"refouler" la peinture. Cet appareil WestPAS uncompresseur
pneumatique.
TOUJOURS garder
la protection de I'ajutage en placawr le
pistolet pendant la pulvbrisation.
TOUJOURS observer la March B Sulvre pour DBtendre la
Pression donnee plus loin, avant de nettoyer ou d'enlever
I'ajutage du pulvbrisateur, ou d'effectuer un travail quelcon-
que sur une partie de I'appareil.
main ou
le corps.
NE JAMAIS essayer d'arrbter ou de dbvier
Ies fuites avec la
Avant chaque utilisation, bien s'assurer que Ies dispositifs de
securitefonctionnent correctement.
Soins mBdicaux
h c8S de ph6tratiOn de fluide SOUS 18 pmu: DEMANDER
IMMEDIATEMENTDESSOlNSMEDICAUX
DURGENCE.NE PAS SOIGNER CElTE BLESSURE
COMME UNE SIMPLECOUPURE.
Avla au medecln: Le p4n&retiondes fluides sous le peau
estunttnumetisme.
II estImportantdetralter
pas tntarder le traitement pour effectuer des recherches sur
chirurgicalementcane blessure imm6diatement. Ne
le toxicitd. Cerrains rev4tements exotiques sont dangereuse-
ment toxiques quend
ils sont inject& directement dens le
mng.
/I est souheiteble de consulter un chirurgien esth4tique
Dispositifs de s6curitB du pistolet
ou un chirurgien spdcidis4 dens la reconstruction des meins.
Avant chaque utilisation, biens'assure quetous le8 dispositifs
de skuritedu pistolet fonnionnent correctement. Nepas
enlever nimodifier une partiequelconque
du pistolet; ceciris-
queraitd'entrafner un mauvais fonctionnement et des
blessures graves.
A chaque tois queI'on s'arr8te de Dulvbriser,
m4me s'il s'agit
Verrou de s6curit6
d'uncourt instant, toujours menre le verrou de securite du
emphcher le pistolet de fonctionner. Si le verrou de securite
pistolet surla position "ferm6e" ou "s6curit.4" I"safe") pour
DHuser
n'est pas mis,le pistolet peut se declencher accidentellement.
ques d'injection accidentelle quand I'ajutagen'estpasen
Le diffuseur du pistolet seri B diviser lejet et B rbduireles ris-
place. Vbrifier le fonctionnement du diffuseur rbgulibrement.
Pour cene verification, dbtendre la pression en observant la
loin puis enlever I'ajutage du pulvbrisateur. Pointer le pistolet
Marche B Suivre pour DBtendre la Presslon donnbeplus
dans un seau en m6tal. en le maintenantfermement contre le
seau.Puis, en utilisant la pression la plus faible possible, ap-
diffuse sousforme de jet irrbgulier, remplacerimmediatement
puyer sur la gachene du pistolet. Si le fluide projete n'est pas
Protection de I'ejuta e
le diffuseur.
TOUJOURSmaintenir
B a protectionde I'ajutageenplace sur le
tion de I'ajutege attire I'attention sur Ies risques d'injection et
pistolet du pulvbrisateur pendant la pulv6risation. La protec-
wntribue B rbdvire, mais n'Bvite pas le risqueque les doigtsou
unepartiequelconquedu corpsnepassent accidentellement B
proximite immediatede I'ajutage du pulv6risateur.
Consignes
de sBcuritBconcernantI'ajutage du
DulvBrlsateur
.~
~ ~ ~~~
Faire extrhement attention B lloccasiondu nettoyage ou du
bouche pendant
la pulv6risation. mettre immbdiatement le
remplacement des ajutages du pulvbrisateur. Si I'ajutage se
verrou desbcuritb du pistolet. TOUJOURS bien observerla
Marche B Sulvre pour DBtendre la Pression puis enlever
I'ajutage du pulvbrisateur pour le nettoyer.
NE JAMAIS essuyer cequi s'est accumul6autour de I'ajutage
du pulvbrisateur avant que la pression ne soit complbtement
tombbeet quele verroude sbcuritbdu pistolet nesoit engagb.
Marche A Sulvre pour DBtendre la Pression
Pour r6duire Ies risques de blessuresgraves, y compris 188 blessurespar injection de fluide ou cellescausees pardes
Bclaboussures dans
les yeux ou sur la peau, des pieces en mouvementou par Blectrocution.toujours bienobservercenemarche
B suivre B chaquefois que I'on arretele pulv6risateur. 9 I'occasion de 18 verification ou de la reparationd'une piece de I'apparail
de pulv6risation. B I'occasion de I'installation, du nettoyageou du remplacementdes ajutageset dunemanibre gbnbrale B cha-
que
an&. 1) Engager le verroude &curite dupistolet. 2) Mettre I'interrupteur Marche-Arrbtsur ARRETI"0FF"I. 3) Debrancher
le cordon dalimentation. 4) DBsengager le verrou de &curite du pistolet. 51 En maintenant une partie metalliquedu pistolet
fermemantappuy6acontre le cbt4d'un seau en mbtal, appuyer sur la gachettedupistoleipour liberer la pression. 61 Engager le
verrou de sbcurit4 du pistolet. 7) Ouvrir le robinet de purge en prenant soin d'avoir un recipient pr& B rBcup6rer le liquide.
8) hisser le robinet de purge jusqu'h ce que le pulvbrisateur soit de nouveau pr& B &re utilis6.
Sil'on soupconne que I'ajumge du pulverissteur ou le tuvau est complbtement bouch4, ou que la pression n's pas et6 compl&te-
ment fib&% eprds evoirpmcdd.4 aux opdrations ci-dessus,
desserrer TRES LENTEMENT I'bcrou deretenuede la protection de
I'ajutage ou
le raccorddu bout dutuyeu et liberer progressivement la pression, puisterminer le desserrage. Onpeut maifitenant
deboucher I'ajutage ou le tuya
INERRUPTEUR
307-735

RISQUES EN CAS DE MAUVAISE UTlLlSATlON DU MATERIEL
Consignes generales de &curite
Toute utilisationanormale de l'appareil depulvbrisationou des
Pression
Ce pulv4risateurpeut produireun PRESSION MAXIMUM DE
accessoirescornrne,parexemple,la mise sous unepression TRAVAIL 190 bar 12750 Ib/po. 9 1. S'assurer que tous les
exdessive,
les modifications depihces, llutilisation de produits blements du pulvbrisateuret sesaccessoires sont concuspour
chimiques et dematihres incompatibles et l'utilisation derbsister B lapression maximumde travail dece pulvbrisateur.
pieces usbesou abidespeut causer des dbgBts B I'appareil ou
des ruptures depieces et entrainerune injection de liquide ou blbments
ou accessoires utili& avec cet appareil.
NE PASdbpasser la pressionmaximumde travail d'aucun des
d'autresblessuressbrieuses, un incendie, une explosion ou Compatibilit6
chimique des corps
d'autres dbg8ts.
NE JAMAIS altbrerou modifier une piece decet appareil; ceci BlENS'ASSURER que tous
les corps des solvants utilisbs
sont chimiquement compatiblesavec les parties mouillbes in-
risqueraitd'entrainer son mauvaisfonctionnement. diqubesdans les "Oonnbestechniques",audos de la couver-
VERIFIER rbgulierement tout I'appareilde pulvbrisation
et ses du fabricant des matieres et SOIVantS utilisbs avant de S.en ser.
ture. Toujours lire soigneusement lesdocumentset brochures
Bquipements
et reparer ou remplacer immbdiatement Ies vir ce pulvbrisateur,
pieces usbes ou abimbes.
MESURES DE SECURITE CONCERNANT LES TUYAUX FLEXIBLES
trbs dangereux. En casde fuite sur le tuyau,defissure,
Le fluide
B haute pression circulant dans les tuyaux peut &re
dechirure ou rupture B la suite de l'usure, de d4g4ts ou d'une
quien proviennentpeuvententrainer des blessures graves par
mauvaise utilisation,
Ies projections de fluide haute pression
penetrationsous la peauou par contact, ainsique des d4g4ts
TOUS LES TUYAUX FLEXIBLES DOIVENT
KVOlR DES
materiels.
RESSORTS SPIRALE DE PROTECTION AUX 2 BOUTS1
pliures, de bouclesou de nmudssur
Ies tuyaux qui pourraient
Ces spiralesdeprotection contribuent B Bviter laformation de
voisinag6.
entrainer la rupture du tuyau B I'endroit du raccord ou A son
SERRER FERMEMENT tous
les raccords avant chaqueutilisa-
tion. Le fluide souspression peut faire sauter un raccord
desserrbou produireunjet B hautepression s'bchappant par le
raccord.
utilisation, verifier entihrement chaque tuyau pour deceler
Ies
NE JAMAIS utiliser untuyau endommag& Avant chaque
toute autre deterioration oujeu des raccords. Sil'on constate
coupures, fuites, abrasions, bounouflures deI'enveloppe ou
l'unedeces detbriorations,
il faut remplacer le tuyau im-
mediatement. NEPAS essayerde refaire le raccordd'un tuyau
hauteDression
ni de rboarer le tuvau avec du rubanadh4sifou
par tout autre moyen. Untuyau repar4nepeut pas rbsister au
fluide sous pression.
MANIPULER LES TUYAUX AVECPRECAUTION ET
le fluide en tirant sur le tuyau. Ne pasutiliser de fluides ou de
CHOlSlR SOIGNEUSEMENTLEUR CHEMIN. Ne pasdbplacer
tbrieure ou eaerieure du tuyau. NE PAS exposer
le tuyau B
solvants qui ne sont pas compatibles avec I'enveloppe in-
des temperaturessuperieures B 82°C (1BO"F) ou inferieures B
-40OC (-40°F).
Continuit6 de la mise A la term des tuyaux
Une bonne continuit6 de lamise B la terre des tuyaux est
essentiellepour maintenir la mise B la term de I'ensemble de
vaporisation. Verifier la resistance Blectrique devos tuyaux B
fluides et B air, au moinsune fois par semaine. Si votre tuyau
ne comporte pas d'etiquene qui precise
la resistance Blectri-
que maximum, prenez contact avec
le fournisseur de tuyaux
ou la fabricant pour avoir 18s limitesde resistancemaximum.
Utiiisez un metre de rbsistence de la gammeappropribpour
votre tuyau et verifiez la resistance. Si ceIIe-cidbpasse Ies
limites recommand6es.remplacez le tuyau immbdiatement.
Un tuyau sans mise B laterreouavec unemise B laterre incor:
rectepeutentraner des risquespour votre
systhme. Lisez aussl
LES RISQUES D'INCENDIE OU D'EXPLOSION ci-dessus.
RIS~UES D'INCENDIE ou D'EXPLOSION
grande vitesse dans lapompe et dans le8 tuyaux. Si toutes Ies
De I'blectricite statique est produite par le passage du fluide B
pieces de I'appareil de pulverisationne sont pas convenable-
produire
et I'appareil risque $&redangereux.Desetincelles
ment reli4es B la masse ou B la terre;des etincellespeuvent sa
ou dudebrenchementdu cordon d'alimentation. LesBtincelles
peuvent 4galement se produire B l'occasion du branchement
sontsuffsantes pour allumer les vapeun desolvants et le
fluidepulv6ris4, Ies fines particules de poussibre ainsi que
d'autres substancesinflammables, quand on pulv4rise B I'in-
terieur ou B l'ext4rieur. et elles peuventcauser un incendieou
une explosion, ainsi que desblessuresgraves
et desdBg(Lts
materiels.Toujoursbrancher
le pulverisateur dansuneprise se
trouvant B au moins 6 m 120 pieds)de I'appareil et de I'endroit
oa 8e fait la pulvbrisation. Ne pas brancherou debrancher un
cordon d'alimentation que1 qu'il soit dans la zone OP se fait la
puberisation quand
i\ y a le moindre risque que des vapaurs
encore presentes dans I'air prennent feu.
S'il se produit des etincelles d'6lectricit6 statique, ou si vow
rssentez la moindredbcharge, ARRETE2 IMMEOIATEMENT
LA PULVERISATION. VBrifiez que le systhme entier est bien
mi8
B 18 terre. Ne vous servez pasdu systhme avantque le pro-
Mise
B la
terre ou A la masse
blbrne soit identifie
et
corrig4.
Pour r6duire les risques deproduction d'4tincelles dYlectricit6
statique, le pulv4risateur et tous Ies Bquipementsufilis4sou se
trouvant dans la zone de pulv4risationdoivent &re relies B la
terreou B la maw. Pour connaltre le detaildes instructionsde
mise B la terre dans la region et le type particulier d'6quipe
locales. S'ASSURER que tous Ies Bquipements depulv6risa-
ment, CONSULTER
le codeou 188 reglementationsBlectriques
tion suivantssont bien relies
B la terre:
rallongequidoivent &re BquipeS d'une prise B 3 fichesen bon
1. pUlv6risateur:Brancher le cordon d'alimentation ou la
&at, dans une prise de courant convenablement mise B la
terre. Ne pasutiliserd'adaptateur. Toutes
Ies rallongesdoivent
avoir 3 fils et Btre prevuespour 15 amphres.
2. Tuyeux flexibles: Afin d'assurer la continuit6 de la mise B la
terre, n'utiliser que des tuyaux comportant unemise B la terre
et ayant une longueur maximum combinee de 150 m
(1500 pieds). Se reporter Bgalementauparagraphe "Con-
tlnuit4 du clrcult de mise A la terre des tuyaux".
tuyau flexible
et B un pulverisateurdejB convenablementreli4s
3. pistolet:RBaliierlamise A la terre en le raccordant B un
B la terre.
4. Rbcipientd'alimentation: observer le code ou Ies reelemen-
tations locales.
5. Objets, mat6rid ou surfaces recevant la pulv6risation:
observer le code ou 18s r4glementationslocales.
6. Touslesseaux de solventsutilisespour le rincage: observer
m6talliquesconducteursde 1'4lectricite. Ne pas menre le seau
le codeou 18s r4glementationslocales. Nutiliserquedes seaux
sur une surface non conductrice cornme sur du papier ou du
7. Pour conserver la continuit6 de lamise B la terre quandon
carton car cela interromprait la continuit6
le la mise B la terre.
rim le mat6riel ou guand on lib& la pression, toujoun
maintenirunepartiemetalliquedupistoletfermement appuyee
contre le cat4 d'un seau en m6tal puis appuyer sur ladetente
du pistolet.
Mesures
de %curite concernant le Rincage
Pour reduire Ies risques de blessurespar penetration de la
-aux Bclaboussures, observer lamarche B suivrepour le rincage
peau et Ies risquesd0s aux Btincek d'Blectricit6 statique ou
donn4e B lapage 12 de ca manuel.. ObWrverla "Marche X
Sulvre pour DBtendre la Presslon" donnb B la page 4 en
.enlever Ikjutage du pulvbrisntauravant le rincage. Malnte
.cat6 d'un seau en m6tal et Wrla pression la plus faible
unepartiemetalliquedu pistoletfermementappuy4e contr&
possible pendant
le rincage.
307-735 5

.EL ROCIADO A ALTA PRESION PUEDE CAUSAR GRAVES LESIONES.
SOLO PARA US0 PROFESIONAL. RESPETE LOS AVISOS DE ADVERTENCIA.
Lea y entienda todo el manual de instrucciones antes de manejar el equipo.
PELIGRO DE INYECCION DE FLUID0
Seguridad general
Este equipo wnera un fluido a una presi6n muy dta. El
rociado de la pistola, 10s escapes de fluido o roturas de 10s
cornponentespueden inyectar fluido en la piel y e1 cuerpo y
causar lesiones extremadamente raves, incluyendo a veces la
necesidadde amputaci6n. Tam 1 i4n. el fluido inyectado o
salpicadoen 10s ojos puede causar graves dafios.
NUNCA apuntar
la pistola hacia alguien o alguna pane del
cuerpo. NUNCAcolocar la mano o loa dedoa encimadela bo-
quilla. NUNCA tratar de "hacer retornar la pintura"; este NO
es un sistema de rociado de aire.
SIEMPRE tener colocado
el protector de la boquilla en la
pistola mientras se est4 pulverizando.
dado rnks abjo, antes de limpiar o saw la boquilla o de dar
SIEMPREseguir
e1 procedimiento de descarga de presi6n.
servicio a cualiquier equipo del sistema.
cuerpo.
NUNCAtratar de parar
o desviar 10s escapes con la mano o el
edn funcionando bien antes de cada uso.
Asegurar que todos 10s aparatos de seguridad del'equipo
Tratamiento m6dlco
Si parecieraque un poco de fluido penetr6 la iel, conse uir
MEDIATO. NO TRATAR
LA HERIDA COMO UN SIMPLE
TRATAMIENTO MEDICO DE URGENRA DE BN-
~~ ~~ ~~ ~
CORTE. ~~ ~
se causaunalesidn tmudtica. Es Imponantetrater
Avlso el medico: Sise Ilega a inyectar este fluid0 en le piel
quir6rglcamente la leslbn a la brevedadposlbla. No
iciyad es elgode sume importanciaenalgunespintures
demorer el tmtemiento para inuestigar la toxicidad.
Le tox-
sangulneo.Sir6 conveniente consultar
a un especialista en
exdticascuendo
se inyectandirectamente el torrente
cirugla pl6stica
o reconstructiva de /as mnos.
Asegurar que todos 10s aparatos protectores de la pistola
Aparatos de seguridad
de la pistola pulverizadora
estkn funcionando bien antes de wda u?. No sawr ni
modificar ninguna pieza de la pistola pues podria causar el
malfunciohamientodela mismacon 18s consiguienteslesiones
personales.
Pestillo de seguridad
Cada VEL que 88 deje de pulverizar, aunquesea por un breve
momento,siernpre colocer e1 pestillo deseguridad enla
posici6n "cerrada", lo que dejala pistola inoperante. Ei no
hacerlo puede llevar al disparo imprevisto de la pistola.
Difusor
El difusor de la pistoladispersa e1 chorro pulverizado y reduce
e1 riesgo de inyecci6n cuando no est4instalada la boquilla.
Revisar con r6gularidad
el funcionamiento del difusor. Seguir
e1 procedimiento de descarga depresibn. dado m4s abajo.
y despuksawr la boquilla. Apuntar le pistola a un balde
met4lico.sosteniendola bien firme contra 81. Utilizando la
emitido no sale disperso en un chorro irregular, reernplazar de
presidn rn4s bajoposible,dispararla pistola. Si el fluido
inmediato
el difusor.
Protector de la boquila
SIEMPRE tener el protector de la boquilla colocado en la
pistola mientras se est& pulverizando. Este protector llama la
atenci6ncontra el peligrode inyecci6n y ayuda a reducir, pero
noevita, la colocaci6naccidentalde 10s dedos o cualquierotra
parte del cuerpo cerca de la boquilla.
Seguridad de la boquilla pulverizadora
Tener mucho cuidado
al limpiar o cimbiar Ias boquillas. Si
llegara a obstruirse mientrasesth pulverizando, enganchar el
wstillo de la pistda de inmediato. SIEMPRE wpir el pro-
cedlmlento de descarga de preslbn y despu4s sacar la bo-
quilla para lirnpiarla,
NUNCA limpiar
la acurnulaci6n depintura alrededor de la bo-
quilla antes de que sehayedescargado por completo la
presi6n y el pestillo est4 enganchado.
Procedimiento de descarga de presih
Para reducirel riesgo desufrir graves lesiones corporales,incluyendoinyecci6n o lesiones causadaspor piezas enmovirniento o
choqueeMctrico, siempre seguir esteprocedimiento a1 apagar la rn4quina pulverizadora, al revisar o dar servicio a cualquierparte
del sistema de pulverizaci6n.
al instalar, limpiar o cambiar las boquilias, y cada vezque sa deja de pulverizar. (1) Enganchar el
el4ctrico. 141
Desenganchar el pestillo de la pistola. 151 Sujetar una pane metdlica de la pistola bien firme contra unbalde de
pestillo de
la
pistola. (21 Mover el interruptor elbctrico ION/OFF)
a la posici6n OFF (apagadol.
(31 Desenchufar el cord6n
metal, y disparar la pistolapara descargar la presibn. (61 Enganchar el pestillode la pistola. 171 Abrir la vhlvuladedrenaje y tener
listo
un reclipiente para recibir la pintura. 181 Dejar la vhluuladedrenaieabiertahasta que se est4nuevamente list0 para
pulverizar.
Si se sospecha que le boquille o le menguere est6 completamente obstruida, o que no se ha descergado por completo le presidn
despuds de haber seguido elprocedimiento anterior, eflojar MUY LENTAMENTE la tuerca de retenci6n del protector de la bo-
quilla o acoplamientode la puntade la manguera y descargar gradualmente la presibn. despubs, aflojarlopor completo. Luego,
despejar la boquilla o la manguera.
1 3 4.5.6

PELIGRO POR MAL US0 DEL EQUIP0
Se uridadeneral
Cu$quier ma8uso delequipopulverizador
o 10s eccesorios, tal
comosobrepresurizaci6n. modificaci6n depiezds,us0de
materiales
y productos quimicos incompatibles, o utilizaci6n
y causen la inyecci6n de fluido u otras lesionescorporales
de piezas daftadas o desgastadas, puede hacenque se rompan
graves, incendio, explosi6n o dafion a la propiedad.
NUNCA alterar
o modificar ningune pieza de este equipo; el
hacerlo podrla causar una averla.
REVISAR con regularidad e1 equ'ipo pulverizadory reparar o
reamplazar de inmediato 188 piezas dafiadas o desgastadas.
Presi6n del sistema
PRESION DE TRABAJO MAXIMA. Asegurar que todo el
Esta pulverizadora puede desarrollar 190 barlas (2750 psi) de
equipo pulverizador y sus eccesoriostienen la capacidad para
aguantar la presi6nmaxima de trabajo de esta pulverizadora.
Donente o accesorio de este sistema.
NOexceder la presi6nmdximade trabajo de ningOn com-
Corn atibilidad de fluido
ASE&RAR que todos 10s fluidos y solventesusadosson
qulmicamentecompatibles con 18s piezas mojadas ilustradas
en la hojede datost6c.nicos en la contratapa. Siempreleer Ias
instrucciones del fabricante del fluido y solvente antesde
SEGURIDAD EN EL US0 DE LAS MANGUERAS
usarlosen esta pulverizadore.
El fluido que escapa
a aka presi6n por Ias mangueraspuede
ser muy peligroso. Sien la manguera se desarrolla un escape,
dafio o maltrato, el chorro a aha presi6nemitido por all1 puede
una rotura
o rajadura debido a cualquier tip0 de desgaste.
causar una iesi6n por inyecci6n u otras lesiones corporales
graves o dahos a la propiedad.
ITODAS
LAS MANGUERASPARA FLUIDOSTIENEN
TREMOSl Estas protegen Ias manguerascontra dobleces o
QUE TENER GUARDAS DE RESORTE EN AMBOS EX-
retorceduras en 106 acoplamiemos o cerca de ellos, 10s que
podrian traducirse en roturas de la manguera.
Antes de usarlas, APRETARbienfirmestodas Ias conexiones.
El fluido a alta presi6npuede desalojarunacoplamientosuelto
o dejar que por 61 escape un chorro a alta presi6n.
NUNCA war una manguera que est6dafiada.Siempre,
revisarla en busca de cortaduras, escapes, abrasi6n. cubierta
abultada. o acoplamientossueltos o dafiados. Si llegara a en-
contrarse cualquiere de mascondiciones, reemplazar de in-
aka presi6n
o enmendarla con cinta adhesiva u otro material
mediato
la manguera. NO.intentarreacoplar una manguerade
similar..Una manguera
que ha sido remendadano aguante el
fluido a alta presi6n.
MANEJAR
Y PASARCUIDADOSAMENTELAS
equipo. No usar fluidos o solventes que Sean incompatibles
MANGUERAS. No tirar de 18s mangueraspara mover e1
con e1 tubo interno y la.cubiena dela manguera. NO exponer
las manguerasatemperaturassobre 82°C (180°F) o bajo
-40°C (-40°F).
rnanguera
Continuidad del circuito de puesta a tierre de Is
La continuidad del circuito de puma a tierra apropiado as
asencial paramantener conectado a tierra el sistema
pulverizador. Es indispensablerevisarlaresistencia el6nrica
maximade 18s mangueras de aire
y de fluido por lo menosuna
vez a la semana. Si la manguerano tiene una etiqueta enla
cual se especifica la resistencia elbctrica maxima, ponerseen
contact0 con
e1 proveedor o fabricantede la manguera para la
informaci6n sobre 10s Ilmitesderesistencia. Usar un metro de
resistencia en 18 gama apropiada para comprobar la resisten-
mediato. Es muy arriesgado tener una manguerasin puesta a
cia; si excede
10s llmites recomendados, rwmplazarla de in-
tierra o con la puma a tierra en malas condiciones. Leer tam-
SION.
m6s arriba.
bi6n
18 informaci6nsobre RIESGO DEINCENDIO 0 EXPLO-
PELIGRO DE INCENDIO 0 EXPLOSION
rnangueracrea electricidad estMka. Si todas las partes del
El flujo
a alta velocidad del fluido al paser por la bomba y
equipopulverizador no tienen buenatierra,pueden ocurrir
chispas, convirtiendo a1 sistema en algo peligroso. Tambih,
d6n elbctrico. Estas chispas pueden inflamar 10s vaporesde
pueden producirsechispas al enchufar o desenchufar el'cor-
10s solventes y e1 chorro de fluido pulverizado, partlculas de
polvo y otras sustancias inflamables, sea a1 aire libre o bajo
techo,
Io que podrla causar unaexplosi6n o incendio y graves
lesiones corporales
y dafios a la propiedad. Enchufar siempre
menos 6 m 120
pies) de la mdquina y del drea que
se va a
la pulverizadore
a un tomacorriente que
se encuentre
a por Io
rociar. Noenchufar o desenchufer ningOncord6nelbctricoen
el lugar donde se est6 rociando cuando todavla exista la
posibilidadde que quedenvapores inflamablesen e1 aire.
Siocurreuna chispadeelectricidadestdtica
o inclusounligero
choque elbctrico. mientras se usa el equipo,DEJAR DE
PULVERIZARDE INMEDIATO. Revisar todo elsistemaen
buscadeuna tierra apropiada. No usarde nuevo e1 sistema
hasta haber identificado y solucionado el problema.
Puesta
a tierra
Para reducirei riesgode chispas est6ticas.conectar
a tierra la
sa encuentre en el lugar que se va a rociar. CONSULTAR el
pulverizadoray todo el otro equipo de pulverizarque se use o
cbdigo?lhticode la localidadpara Iasinstruccionessobre Ias
conexionesa tierra exigidaspara la zona y tip0 de equipo.
ASEGURARde conectar a tierra todo este equipo
pulverizador:
1. Pulverizadora: enchufar e1 cord6n elbctrico, o cable exten-
sor, cada uno con un enchuf de tres patas en buen estado, e
adaptador. Totos 10s cables extensores tienen que tener tres
un tomacorriente con puesta a tierra apropiado. No usar un
hilos V una caPacidad.de 15 amperios.
2. Mangueraspare fluidos:usarsolamentemangueras con
puestaa tierra de
una longitud combinadade 150 m
tambi6n al pdrrafo sobre continuidad a tlerradela
1500 pies), para asegurarbuenacontinuidad a tierra. Referirse
manguera.
3. Pistola:hacer la puesta a .tierra conecthdola a una
manguera de fluido
y Dulverizadora bien conectadas a tierra.
4. Suminisrrar un recipiente:deacuerdoal cbdigo de la
localidad.
~.
5. Objeto quese esrdmciando: de conformidad con el c6digo
local.
6. Todos 10s baldesde solvente usadosdurante el lavado, de
conformidad con el c6digo local. Usarsolamentebaldes de
metal,queSean conductivos; No colocar e1 balde en una
superficie no conductiva, como papel o cart6n. que inter-
rumpe la continuidad a tierra.
7. Para manrener la continuidad a tiem durante ellavado o
descarga depresidn, siempre apoyar unaparte metdlica de la
pistola bien firme contra el costado del balde de metal,
despues apretar
el gatillo.
Seguridad
durante el lavado
Para reducir
el riesgo deque se inyecte o salpiquefluido en la
piel, o queocurra una descarga deelectricidadestdtica, siem-
preseguir les INSTRUCCIONESPARAELLAVADO, dadasen
lapdgina 12. Seguir el procedimientodedescargade
presl6n en
la p6gna 6, y quitar la boquille mciadora antesde
law. Apoyer unapartemetdlicade la pistolabienfirme contra
el costado de un balde de metal y usar le presi6n mds baja
posible de fluido durante
el lavado.
PELIGRO DE LAS PIEZAS MOVILES
otras partes del cuerpo.MANTENERSE ALEJADO de Ias
Las piezas enmovimiento puedenpinchar o amputardedos u
piezasen movimiento durante el arranque o funcionamiento
de la pulverizadora. Desenchufar la pulverizadora y descargar
la presi6nantes de revisar o dar servicio. a cualquier parte de
pulverizadora, para impedir que arranque inesperadamente.
IMPORTANT
Se hanadoptado Ias normasde seguridaddel gobierno de 10s
Estados Unidosde Norteam4ricabajo el Acta de Swuridad y
especial Ias Generales, Parte 1910, y Ias Normasde Construc-
SaludOcupacional.Deberhn consultarse estasnormas, en
ci6n.
Parte 1928.
307-735 7

WARNING: Alem user to avoid or correct conditions that could cause bodily injury.
CAUTION: Alerts user to avoid or correct conditions that could cause damageto or destruction of equipment.
NOTE: Identifies essential procedures or extra information.
EM 490 Components
A. Pump
C. Filter with drainvalve/pressurerelief
B. Suctiontubewithstrainer
valve
D. ON/OFF switch
E. Fluidpressurecontrol
F. Electricmotor
0. Powersupplycord
H. Cart
I. SprayGun(CompleteSprayersonly)
J. Reverse-A-Clean 111 (CompleteSprayers
Includes tip
only)
L. DrainValveorPressureReliefValve
K. Drain Tube
M. 50 footFluid Hose (CompleteSprayers
N. 3 foot Whip End Hose (Complete
only)
Sprayers only)
Model 231050
N
8 307-735

1. Connect Hose andGun (Refer to Fig1.)
a: Remove the plasticcapp!ug from thefilter
outlet nippie and screw the
50 ft 115.2 m)fluid
hose onto thenipple.
b.Connectthe whip hosebetween the fluid hose
and the gun inlet connection.
c. Don't usethreadsealant,anddon'tinstall the
spray tip yet1
CAUTION
To avoiddamaging the pressurecontrol, which
component damage, follow these precautions:
mayresult
in poorequipmentperformanceand
1. Always use a minimum of 50 ft (15.2 m) of
nylonspray hose.
2. Never use awire braid hoseas it istoo rigid
to act as a pulsationdampener.
3. Neverinstallany shutoff devicebetween
the filterand themainhose.
See Fig 1.
4. Alwaysusethemainfilteroutlet.Never
plug this outlet.
1
2. FillPackingNut/Wet-Cup.(See Fig 2.)
Fill the packing nut/wet-cup 1/3 fullwith Graco
Throat Seal Liquid
{TSL), supplied.
3. CheckElectricalService
a.Be sure the electricalserviceis
120 V,
60 HzAC,15 Amp (minimum)and that the
outlet you
use is properly grounded.
b.Useagroundedextension cord which has3
wires
of a minimum 12 gauge size, and a rnax-
imum of 100 ft (30 m) long. Longer lengths or
smaller gauges mayaffectsprayer performance.
WARNING
Proper grounding is essentialto reduce therisk,of
static sparkingwhich can cause afire or explosion
damage.
and'result in seriousbodilyinjuryandproperty
Readthewarning section FIRE
OR EXPLOSION
HAZARD on page3 of this manualandground
the sprayer as explained there.
4. Plug in the Sprayer
a.Besure the ON/OFF switch is OFF.Refer to
Fig 3.
b. Plug the powersupplycord into a grounded
electrical outletthat isat least
20 ft I6 m)away
from the spray area to reduce the chance of a
spark
igniting the spray vapors.
c. Donot remove the third prong ofthe power
supply cord plug,whichis the grounding
prong, and do not use an adapter.
5. Flush the
pump to removetheNo. 10 motor oil
which was
left in to protect pump parts after fac-
for flushing procedure.
tory testing. See ''Flushing Guide1ines"on page 12
6. Preparethe paintaccordingtothemanufacturer's
recommendations.
a.Removeanyskin that mayhaveformed.
b. Stir thepaint to dissolvepigments.
c. Strain the paint through afine nylonmeshbag
(available
at most paintdealers) to remove par-
ticlesthat could clogthefilter or spray
tip. ThtS
is probably the most important step toward
trouble-free spray painting.
DO NOT INSTALL

OPERATION
WARMING
Pressure Rellef Procedure
To reducetheriskofseriousbodilyinjury, in-
cluding injection; splashing in the eyesor on the
skin; injury from moving parts or electric shock,
always follow this procedure whenever you shut
off the sprayer,whencheckingorservicingany
partof the spray system, when installing, cleaning
orchangingspraytips,andwhenever you stop
spraying.
2. Turnthe ON/OFF switch to OFF.
1. Engagethe gunsafetylatch.
3.. Unplugthepowersupplycord.
4. Disengagethe gun safetylatch.
6. Hold a metalpart of the gun firmly to the
side of a grounded metel pail, and trigger
the gun to relieve pressure.
6. Engagethegunsafetylatch.
7. Open thedrainvelve/pressurereliefvalve,
havino
a containerreedv to catch the-.
drainage.
8. Leave thedrainvalve own until YOU are
reedy to operate the sprayer again.
If you suspect that the sprey tip or hose is com-
pletelyCLOGGED, OR THATPRESSUREHAS
NOT BEEN FULLY RELIEVEDefter
folowina the
steps
above, VERY SLOWLY loosenthe tipiuerd
pressure gradually. Then loosen thenutcomplete-
retaining nut orhoseendcouplingandrelieve
ly. Now clear thetip or hose obstruction.
1. Primethe Sprayer with Paint.
a. Closethefilter drain valve/pressure relief valve.
b. Don'tinstall the spray tip yet1
c.Put thesuction tube into thepaintcontainer.
d.Turnthepressureadjustingknob
ell the way
e. Disengage the gunsafety latch.
counterclockwisetolowerthepressuresetting.
f. Hold e metal pert of the gun firmly against and
aimed into
e grounded metal waste container.
See Fig 4. Squeeze thetriggerend hold it
open, turn the ON/OFF switch to ON, and
sprayer starts. Keep the gun triggered until all
slowly increase the pressure setting until the
flows freely from the gun. Release the trigger
air is forced out of thesystemendthepaint
end engage the safety.
NOTE: If the pump is herd to prime,place a con-
tainerunderthedrainvelve/pressurerelief
valveandopen
it. When fluid comes from
the valve, close
it. Then disengage the gun
safety and proceed as in Step If, above.
g. Check all fluid connectionsfor leaks. If any am
found, follow thePreclsureRelief Procedure
tions.
Warning. above,before tightening connec-
2. Install the Spray Tip end Tip Guard
IReferto Fig
5.)
a. Be sure-the gunsafetylatchisengaged.
b. Unscrewthe retaining nut from thegun.
c.Installthespraytip.
If u8lng the RAC //I Spray Tip K/t, install the
AAC 111 sprayhousing, with the tip installed.
Keep the instructions for leter reference.
d. Tighten the retaining nut bv hand until snun.
MAINTAIN FIRM
METAL-TO-METAL
CONTACTBETWEEN
GUNANDGROUNDED
METAL CONTAINER
'0
Fig 4
BE SURE GUN SAFENLATCH
IS ENGAGED1
CAUTION
seat gasket and result in leakage.
Overtighteningthe retaining nut will damagethe
3. AdjustingtheSprayPattern (Refer to Fig 6.1
a. Increasethepressureadjustingknobsetting
just until spray fromthegun is completely
atomized.
To avoidexcessiveoversprayand
fogging, and to decrease tip wearandextend
thelife of thesprayer,always
use thelowest
results.
possiblepressureneeded to getthedesired
b. Ifmorecoverage is needed, use a larger tip
rather than increasing the pressure.
c.Testthespraypattern. To adjustthedirection
of thespraypattern,engagethegunsafety
latch and loosen the retainingnut. Position the
tip
so the groove is horizontal for a horizontal
pattern or
vertical for a verticalpattern.Then
tighten the retaining nut.
U& a wrenchto tigtkntheretaining nutabiiut
1/8 to 1/6 turn.
10 307-735

4. Cleaning a CloggedTip
WARNING
jection, useextreme cautionwhencleaningor
To reduce'therisk of seriousbodily injuryfromin-
changingspray tips.
If the spray tip clogs while
spraying, engage the gun safety latch immediate-
ly, then follow theprocedure in Steps 4a-4e.
below.
NEVER wipe off buildup around the spraytip until
pressure isfully relieved and the gun safety latch
is
engaged.
a. Clean the front of thetipfrequently during daily
operation.
firsf, follow the PressureRelief
Procedure Warning on page 10. Then use a
solvent-soakedbrush to keep fluid from
building up and clogging thetip.
b.If thespray tip doesclog,release the gun trig
ger, end engage the gun safety.
c.
If using the RAC 111 Spray Tip Kit, rotate the
RAC
111 handle 180'. SeeFig 7. Disengagethe
waste container. Engage the gun safety again.
gun safety, and trigger the gunintoagrounded
If uslng a spray tip kit which Is not self-
Return the handle to the original position.
cleanlng,
VERY SLOWLY loosenthe tipguard
retainingnutor hose end coupling, and relieve
pressuregradually,thenloosencompletely.
Clear the tip or hose, then reassemble.
d. Disengage the gun safety, and resume spraying.
e.
If the tip is stlil clogged, engage the gun safe-
thedrain valvefpressurereliefvalve
to relieve
ty,shutoff andunplugthesprayer,andopen
f.Instructionsforcleaningthe RAC
111 Spray Tip
pressure. Remove the spray tip and clean
it.
are given in the instructions supplied with kit.
SHUTDOWN AND CARE
1. Checkthepackingnut/wat-cup daily. First
follow the PressureReliefProcedure Warning
on page
10. Be sure the wet-cupis 1/3 full of TSL
at all times to helpprevent fluid builduponthe
pistonrodandprematurewearofpackings.The
packing nut shouldbe tight enough to stop
leakage, but no tighter. Overtightening may cause
binding and excessive packing wear:Use
a screw-
driverand light hammer to adjustthenut. See
Fig 8.
2. Clean thefluidfilteroften andwheneverthe
sprayer
is stored. First follow the Pressure Relief
307-273, supplied, for the cleaning procedure.
Procedure Warningon page
10. Refer to manual
3. Flushthesprayer at the end of eachwork day
and fill
it with mineral spirits to help preventpump
corrosion end freezing.
See "FlushingGuidelines"
onpage 12.
CAUTION
.'nightto: (1) prevent pump corrosion; (21 prevent
Never leave water or any paintinthe sprayer over-
the fluid from freezing in the pump and pressure
control which can cause
loss of pressure, stalling
orserioussprayerdamage.Always
use mineral
spiritsforthefinalflush, follow the Pressure
leavethe mineral spiritsin the sprayer.
RellefProcedureWarning on page
10, and
Fig
7
Fig 8
4. For very short shutoffparlods, leavethe suction
tube inthe paint, follow the Pressure Rellef Pro-
tip.
cedure Warningon page
10, and clean the spray
5. Coil the hose and hang it on the hose rack when
storing
it, even for overnight, to help protect the
hosefrom kinking, abrasion, couplingdamage, etc.
6. Forthe low-profile cart. secure the suction hose
assemblywith thebrackets on the sideof the cart.
page
3 for informationonthe hazard of using
Refer to the warning section
HOSE SAFETY on
damaged hoses.
307-735 11

FLUSHING GUIDELINES
When to Flush
1. Newsprayer. The sprayer was factory testedwith
motor oil which wes
left in to protectpump parts.
Before uslng water-base paint, flush with mineral
spirits, followed'by soapywater,andthen with
clean water.
Before uslng oll-base palnt,flush with mineral
spirits only.
2. Changing Colors. Flushwith a compatiblesolvent
such
as mineral spiritsor weter.
3. Changingfromwater-base to oil-basepaint.
Flush with soapy water, then with mineral spirits.
4. Changingfromoil-base to water-basepaint.
Flushwith mineral spirits,followed bysoapy water,
then with clean weter.
5. Storage.
spirits and leavethe pump, hose andgunfilledwith.
Water-bese palnk flush with water, thenmineral
mineral spirits Shut
off andunplugthesprayer,
open the drainvalvdpressurerelief valveto relieve
pressure and leave open.
andunplugthe sprayer, open the drain
Oll-base palnk flush with mineral spirits. Shut off
velve/pressurereliefvalve to relievepressureand
leave open.
Before uslng water-base palnt, flush out mineral
spiritswith soapy water and thenwith clean water.
When
uslng oll-base palnt, flush out the mineral
spiritswith the fluid to be sprayed.
6. Startupafterstorage.
How toFlush
1. Followthe PressureReliefProcedure Warning
on page 10.
2. Remove the filter bowl andscreen;seemanual
307-273 supplied. Clean the screen separately and
install the bowl withoutthe screen.
Fig
3. Close the filter drainvalve/pressurereliefvalve.
4. Pourone-half gallon (2 liters)of compatible solvent
into a baremetal pail. Put the suction tube in the
pail.
5. Removethespray tip fromthegun.
6. Disengage the gun safetylatch.
WARNING
7. Disengagethe gunsafety latch. Pointthespray gun
into
a grounded metal waste containerand .with e
teiner,squeeze thegun trigger. hh procedure
metalpartofthe gun
firmly touchin the metal con-
splashing. With the gun triggered, turn the
help6 avoid StEtlC sparking and reduce6
!
12 307-735
MAINTAIN FIRM
METAL-TO-METAL
CONTACT BETWEEN
GUNANDGROUNDED
METAL CONTAINER
Fig 10
ON/OFF switchtoON andslowlyturn the pressure
adjustingknobclockwise lust
untll the sprayer
atam. Keep the guntriggered until cleansolvent
comes fromthe nozzle.Release thetriggerand
engage the gun safety latch.
Sea Fig 10.
8. Check all fluid connections for leaks. If any leak,
first follow the Pressure Relief Procedure Wern-
ingon page
10. Thentightenthe connections, start
the sprayer, and recheckthe connectionsfor leaks.
9. Remove thesuction tube fromthepail.Disengage
the gunsefety and trigger thegunto force solvent
from thehose.
Do not letthe pump run dry for
more than SO seconds to avold dameglng the
pump pecklngslThen turn the ON/OFF switchto
OFF end engage the gun safety latch.
10. Unplugthepowersupplycord. Open thedrain
valve/pressure relief velve and leave openuntil you
start the sprayer again. Unscrewthe filterbowlend
support are installed
es shown in Fig 9.
reinstall the cleanacreen. Be sure the screen end
11. If you flushed with mineral spirits and aregoingto
then with clean
water. Then repeat Step 1.
use a water-base paint, flushwith soapy water and

Application Methods
Always hold the gun perpendicular to the surface and
the surface you are spraying.
See Fig 11.
keep the gun at an even 12 to 14 in. ~300-356 mm) from
Beginmovingthegun
in a horizontaldirection at a
steady rate. Startthespray stroke
off the target surface
and pull the trigger as the gun ismoving. Then, while
the gun is still moving, and as you approach the other
edge,release the trigger.Thismethodavoidsexcess
paint buildupat the end of each stroke.
gun tip size. A small tip orifice applies less paint and a
The bestway to controltherate
of coverageis with the
narrower pattern. A larger
tip orifice applies more paint
and a wider pattern.
Do not try toincrease coverageby increasing thefluid
pressure1Using the lowestpressurenecessary to get
the desiredresults will helpprolong the life of your
sprayer and minimize paint lost by overspray.
Forinterior corners, such as on a bookcase or inside a
cabinet, aim thegun towardthe center of thecorner to
spray. By dividing the spray pattern thisway, the edges
on bothsides are sprayed evenly.
See Fig 13.
RIGHT
I
WRONG
I
Fig 11
The correct speed for moving the gun will allow a full,
wet coatingtobe appliedwithout runs or sags. Lapping
eachstrokeabout
50% over the previousstroke pro-
duces uniform paintthickness.Andspraying in a
uniformpattern alternatelyfromrighttoleft, then leftto
right, providesa professionalfinish. See Fig 12.
Fig 13
If there is a wind, angle the spray patterninto the wind
tominimize drifting. Paintfrom the ground to the roof.
Shrubs. When next to the house, tie back shrubsfrom
the surface to bepainted with ropeandstakes.Then
cover them with a canvas dropcloth as the painter ap-
proachesthearea.Remove thecanvasdroDcloth as
soon as thearea is painted,toprevent possible damage
to the shrubs.
cover them with a canvas dropcloth to avoid slipping.
Concretewalks. If thewalkways will bewalkedon,
Otherwise a plastic dropcloth is all that is needed.
with maskingtape.Coverlamps
with plasticbags
Electricaloutlets andlamps. Protectelectricaloutlets
securedwith masking tape.
Nearby objects. Move objects suchas automobiles, pic-
nic tables,lawnfurniture, etc. upwind of thesurface to
tectivebarrierbyhangingplasticbetween two long
besprayed. In the case of a nearby home, make apro-
poles.
\
Fig 12
307-735 13

SERVICE
Preuum Rellef Procedure
WARNING
To reduce the riskof wrious bodily injury, includingfluid injection; splashing in theeyesoron the skin; injuryfrom
servicing any
part of the spray mem,when installing, cleaning or changing spray tips, end whenever you stop
moving
parts or electricshock, alww follow this procedure wheneveryoushut off the sprayer, when checking 01
2. Turn the ON/OFF ewitchOFF.
1. Engagethe gun safety latch.
3. Unplugthepowsr eupplycord. '
4. Disengage thegun safety latch.
6. Hold a metal part of the gunfirmly to the side of e grounded metal pail, end triggerthe guntorelieve pressure.
6. Engagethe gun safetv latch.
7. Open the drain valve/pressure relief valve, having s container reedy to catch thedrainage.
8. Leavethe drain valve/preseure relief valve open until you era reedy to spray again.
If you suspeci the spray tip or hose is completely dogged, or th8tpressure has not been fully relieved after foilow-
gradually, then loown completely. Now clear thetip
or hose.
ingthe steps above, VERY SLOWLY loosenthe
tip guard retainingnut or hose end coupling end relieve pressure
spraying.
"
PROBLEM
Electric motor won't run
Electric motorstops while
spraying
Electricmotor runs, but lowor
no paint output and pump not
stroking iSee PROBLEM "Not
Enough paint pressure", on page
15. also.)
Electric motor laborswhen stan-
ng, Mowlng fuses
'aint leaks
intb wet-CUD
CAUSE
Power or extensioncord unplugged, or damaged
or building circuit fuse blown
Motor overloadswitch" has opened
Pressuresetting too low
Dressurization
Pressurecontrol frozen or damaged by over
circuit fuse blown
Power or extension cord unplugged, or building
Motor overload switch' has opened
Pressure setting too low
Spray
tip or filter plugged
Wrong type extension cord
Piston ball check not seating
Piston packingsworn or damaged
Intakevalve ball check not seating
Pump frozen
Filter upside down
Pressure control frozen or damaged by over
pressurization
Gear train damaged
Worn pump parts
Sprayer not primed
Capacitor failure
Circuit board failure
Throat packings worn or damaged
SOLUTION
Check, reset or replace
Unplug power cord, relieve pressure,
allow to cool, decrease pressure
Increase
Thaw",change, remove or clean'..
replace,seepage
20
Check,resetorreplace
Unplug power cord, relieve pressure,
allow to cool, decrease pressure
Increase
Removeand clean
Use maximum 50 ft 115.2 m), 3 wires
12 gaugeminimum, grounded exten-
sion cord
Service,
we 307-793
Replace, 888 307-793
Service, see 307-793
Thew*'
Remove and reinstell
Thaw'., change, remove or clean***,
replace, see page 20
Replace
Service,
sea 307-793
Prime sorwer. we mae 10
Replace capacitor, see page 16
Replace circuit board,
see page21
Replrim,
see 307-793
1
..
..
14 307-735

~
PROBLEM SOLUTION CAUSE
Excessive surge at spraygun Remove and cleanSpray tip or filter plugged
Spray tip too big or worn ThinPaint too viscous Change spray tip
Wrong typehose .Use minimum 50 ft (15.2 m) staticfree
nylon hose (wire braid hose unacceptable)
Not enough paint pressure
I Pressure settingtoo tow llncrease
Spray tiptoobig or worn Changespray tip
pressurization
,
Pressure control frozen ordamaged by overThaw",change,removeor cleanof*,
repiace, see page 20
I Wornpumppans Service, nee manual 307-793
~.
Tails or fingers in spray pattern I Pressure settingtoo low I Increase I
Outlet filter dinyor plugged
Spray tip too big or worn Clean-see manual
307-273
Use minimum 50 ft (15.2 m) static free n)
Wrong type hose Thin
Paint too viscous Fill Paintsupply low or pail'empty Change spray tip
Spray tip too big or worn Change spray tip
Sprayer sucking air or gun needle not seating Tighten fittings,service
gun-see manual I
"
Paint runs or sags
Spitting fromspray gun FillPaint suppiy.lowor pail empty
hose (wire braid hose unacceptable)
"_ "_
I
Static sparking from spray gun Sprayer or work not grounded
I;Iu/-b;u
ICheck, ground
*The electric motor has an overheating protector switch whichautomatically
reset8 on cooling. If it opens and the electric
overheating. Always
use the lowest pressure setting needed.
motor shuts itself
off, unplug the power cord and
let the sprayer cool for 30 to Bo minutes. Also try to correct the wuse of
**Freezing results fmm.failureto replace water-base paint or flushing water with mineral spirits solvent.
**"Over pressurizationresults from
(1) using less than M ft (15.2 m) of nylon spray hose, (2) using a wire braid spray hose. (3)
adding a shutoff device between the pump outletand the spray gun, (4) attaching a spray hose to the filter drain
vaive/preapure relief valve, or (5) using e clogged or incorrectlyassembled filter.
307-735 15
..
, ...,
.-.
..
..
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. ...
,. . ...
.. .
..~ ::
. .i
. ..
.,. . .
....
..,.
..
..
.;.
.,, ,
,
. ..
.. ..
.,
,. ,
..
... :

REMOVINGandREPLACING PUMP
..
Flushthe sprayer if possible.. Removethe hose clamps
and drain tube (116).
Unscrewtheadepter 138) from pump to removethe
suction assemb\y. See Fig 14. Use a wrench on the
pump intake valve (C) to keep it from loosening.
Unscrew thehow 162) from the nipple or swivelunion
(10) stthe displacement pump. See Fig 14.
Use ascrewdrivertopush the retaining spring (33) aside
and push out the pin (34).
drive assembly (56).
Loosen the locknut (112) and unscrew the pump-from
See repair instructions in manual 307-793, supplied.
When instelling
e newor repaired pump, first rotatethe
crenkshah (Dl 80 theconnectingrod 154) isinits lowest
position. Push the pump pi8ton rod (A\ a\\ the wev
thedrive essembly
(66) until you feel the piston rod
down into
the pumpcylinder
(BI. Screw thepumpinto
pressing against the connecting
rod. Unscrew thepump
until the nipple or swivel union (10) linea up with the
outlet hose
(621, then unscrew another complete turn.
Torque thelocknut
(1 121 to 70 ft-lb (96 Nd; it must be
very tight to avoid looseningfromvibration.
Align the holea
in pistonrod (AI and couplin 138) and
install the pin (34). Be sure to push thespringhdown
in place overthe pin ends.
54
D
33
36
55
34
TORQUETO
a
Model 231002 Shown
Fig 14
Reassembletheremaining parts, in the reverse order of
removal.
REMOVING and REPLACING CAPACITOR
Remove the two screw andthecover of capacitor
old capacitor. Connect the flag connecton
of the new
(pd). See Fig 16. Removetheflag connecton fromthe
capacitor and replace the cover.
NOTE: The replacementcapacitorincludes e new
resistor,
installed.

REMOVING and REPLACING ELECTRIC MOTOR
grounding screw (301) and the black motor lead from
Disconnect the green and yellow motor lead from the
the toggle switch (316).
the Pressure Relief Procedure Warning onUnscrewtheconnector (130 and 303) nutson bothends
of the conduit
(1). Removethe screws (71, nuts (31 and
lockwashers (4). See Fig 20. Remove the motor from
union
(10) atthedisplacement pump. See Fig 14.
Disconnectthehose (52) from thenippleorswiveltheframewhilecarefullyguidingthewires throughthe
connector
l303) in control box. Removethe conduit (1)
Remove thedriveassembly as describedonpage 19.
Youcanleavethepump, connectingrodandbearing from wires.
assembledto the drive assembly. fromthemotor,beingcareful to avoid twisting the
Loosen the locknutandunscrewtheconnector
(130)
Driveoutthepin (27) andremovethegear (37). SeeFigwires.Install thenewmotor in the reverseorder of
15. Remove the screws (25) andcover 141) from the removal.
pressure control (50). See Fig 15. Disconnectthered,
pinkand brown motor leads from circuit board (23). A circuitboard (23) isincluded with a newmotor. See
grounding screw (301) and the black motor lead from
Disconnectthegreenandyellowmotorleadfromthepage
21 for installation.
the toggle switch
(316).
41 fi
Fig 16
25 1
307-735 17

REMOVING and REPLACING CONNECTING ROD end BEARING
screw8 (19) end cover (36).
Removethe two screws end
Removepumpas described
on page
18. Removethe six
lockwashem
(20 end 181.Remove the bearing (63) and
connectingrod
154). sliding the connectingrod off the
crankshaft.
See Fig17.
and removethe pin
(34) fromthe coupling (38). Remove
Use e screwdriver to push the retaining spring (33) aside
the couplingfrom the connecting rod.
Pull the connectingrod outof the bearing. Wipe clean
ingend connectingrodlinkfor weer ordamage.
If either
(don't use solvent) end inspect the surfacesof
the beer-
needs replacing, replace both. When installing the-rod
andbearing,coat the surfaces withSA€ 10 non-
detergentmotor oil.
reg; do notuse solvent.
If the crankshaft is badly worn,
Cleanandinspect the crankshaft.Wipeclean with
a
replacethe drive assembly (551 as describedon page19.
Cleanendinspect the connectingrodneedlebearing.
Repack the bearing with industrial grade,heavyduty,
extreme pressurelithium soap grease.
NOTE: After every100hours of operation,or
wheneverservicingthe pump (whichever
comesfirst),
fill the cavityinthe connecting
rod (541 with SAE 10 nondetargant motor
oil.
Assemble the new rodend bearing, being sure to push
the spring
(33) downinplace over thepin (34) ends, end
install in the revemorder of removal.
Fig 17
!
1'.
.. .
.
. ...
. .; : .
.... .
, :. , ,:: , .
,, ....
18 307-735

described on page 18.
Remove thepump,connecting rod endbearing asCleanend inspect the gear (371 for wearordamage.
Replace
if necessary. To remove, drive out the pin (271
Remove the screws,lockwashers (AB61 anddrive and pull the gear
off thematorshaft.Apply
housing
(0. Remove the screws,lockwashers (5% Et
molybdenum disulfide spray lubricanttothe gear,allow
55b) and motor housing (Dl. See Fig 18.
todry, then apply industrial grade, heavy duty, extreme
pressure lithium soap grease.
removal.
Installthenewdriveassembly in the reverseorder of
307-735 19
. ..A
.. ..
. ..
.
..
..
. ..
..
..
..
'> '' _.. ''
I .,
.. .,.
_,;I ...,
:, . ..<::
..
.. .
..

~ ~~~
REMOVING and REPLACING PRESSURE CONTROL
andunscrewswivelunion (84) from nipple(313).
Hold thenut
(H) et the pressure control with a wrench
Removefilter (47).
See Fig 19.
Disconnect hose (521 fromthe nipple (3021. See Fig 20.
Use extremecautionwhenremovingtheelbow
(312) or nipple (3131 fromthe pressure control.
Any twisting or jarringof the pressure control fit-
ting could alter the factorysettingofthecontrol or
permanently damage the control.
IcAuT1oNl
~ ~ ~~ ~~
Remove screw' (71, lockwashers (4), and nuwf3).
Remove pressure control (50) from frame.See Fig20.
~~~~~ ~~
trol (50). See Fig 21.
Remove screws (25) end cover (41) from pressure con-
Disconnect red, pink and brownmotor leeds from cir-
fromgrounding screw
(301 I, and black motor leadfrom
cuitboard (86). Disconnect green and yellowmotorlead
toggle switch
(316). See Fig 21.
NOTE: Circuitboard (86) is not includedwithpressure
control
(50) replammentassembly.Order
separately
if new circuit board is needed.
Unscrew nut onend of conduit
(1) fromconnector
conduit while carefully guiding wires through connector
(130). See Fig 21. Pull pressure control (50) away from
(130).
unscrew it from pressure control. Slide strain relief up
Loosen knurledpartof power cord strain relief
(90). and
on power cordto provideclearance, and unscrew con-
duit connector
(130). See Fig 21.
Remove the screw 1301). conduit connector (130). ter-
minal
(a), lockwasher (304). power supply cord (305).
andstrainrelief (306) from the old pressure control.
the new pressure control.
Replaceany damagedpans.Assembletheseparts to
calibrate the pressure control.
See page 22.
Replace in the reverse order of disassembly and then
CAUTION
Failure to observethe following maycausepoor
damage to the pressure control:
performance or excessive pressure and permanent
(1) Always use nylon spray hose
at 50 ft (15.2 m)
12) Neveruse a wire braid spray hose.
(3) Never attach a sprayhose to the filter drain
valve.
(4) Never add any type of shut off device between
the pump outlet and the spray gun.
(5) Be suretocheck filter for cloggingor incorrect
assembly if tipclogging frequency increases.
(6) Neverallow flushing wateror water basepaint
to freeze in the system.
1
minimum length.
Fig 19
I
Thepressure control MUST be calibrated
WARNING
whenever a new or used microswitch or pressure
control assembly is removedandreinstalledor
replaced to besurethe control
is properly
calibrated.Failure to properlycalibratethe
pressurecontrolcancausethesprayer to over-
explosion. It mayalsopreventthesprayer from
pressurize and resultincomponent rupture, fire or
would result in poor sprayer performance.
obtainingthemaximumworkingpressure which
20 307-735