Graco 307786B 120 VAC. 16 Amp ULTRA 750 AIRLESS PAINT SPRAYER Owner's Manual

INSTRUCTIONS/PARTS LIST
307-786
Rev B
ORACo
SUPERSEDES
A
This manual contains IMPORTANT
WARNINCS and INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
120 VAC. 16 Amp
ULTRA"750 AIRLESS PAINT SPRAYER
3aw psi 1210 bad MAXIMUM WORKING PRESSURE
Model 231433, Series A
Without hose, gun, spray tip kit or tip
Model 231-042
Includes Sprayer Model 231433, hose, gun, RAC Ill
spray tip kit, and spray tip of choice.
Model P M l O , Serler B
Same aa 231-042 exceptis CSA certified
PATENT NO. 4,397,610
PATENTED 1983. CANADA
BRNETE 1984
FOREIGN PATENTS PENDING
INDEX
12
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Warnings
2, 3
Avattissement
4, 5
Advettencia
6, 7
Introduction
8
setup
9
Operation
10
Shutdown b Cera
11
Guidelines
Flushing
..13-20
Troubleshooting
Guide
%in Test
.19
Bridge Test
20
Remir Section Index
21
Pa& List b Drawings
Sprayer
32, 33
How To Order Replacement Perta.33
Pregsure Control
34
Circuit Board....
36
Technical Data
Back Cover
Warranty
Back Cover
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Alumlnum and Zinc Materlal Hazard
Never USB l,l,l-trichloroathane, methylene chloride, other halogenated hydrocarbon solvents
or fluids containing
such sohrentsin this equipment. Such use could result in a serious chemical reaction,with the possibiliiof explocion, which couldcausa death, serious bodily injury and/or substantial property damage.
Consult your fluid suppliers to ensure that the fluids being used ara compatiblewith aluminum and zinc parts.
GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN.55440-1444
@COPYRIGHT 1986 GRACO INC.
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HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY.
FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.
Read and understand all instruction manuals before operating equipment.
FLUID INJECTION HAZARD
General Safety
This equipment generates vary high
fluid pressure. Sprayfrom
the gun,leaks
or rupturedcomponentscan
inbc.fluid
through your skin and into your bcuiv end cause enreniely
serious bodily injury, includingthe need for amputation. Also,
fluid injected or splashed into the eyes or on the skin can
cause serious damage.
NEVER point the spray gun at anyone or at any part of the
body. NEVER put hand or fingers over the spray tip. NEVER
try to "blow back" paint; this is NOT an air spray system.
ALWAYS have the guard
spraying.
In placeon the spray gun when
ALWAYS follow the Pressure Relief Procedure, below,
cleaning or removing the spray tip M seNicing any
system equipment.
b e f o r e '
NEVER try to stop or deflect leaks with your hand or body.
Be sureequipmentsafetydevices
before each use.
are operatingproperly
Medical Alert-Airless Spray Wounds
If any fluid eppears to penetrate your skin, get EMERGENCY
MEDICAL CARE AT ONCE. DO NOTTREAT AS A
SIMPLE CUT. Tell the d m o r exactly what fluid was injected.
Noh to Physlclan: Injection in the skin is a traumatic injury. It Is important t o tvaat the Injury surgically as soon
as posslble. Do not delay neetment to research mgcity.
Toxi&is
a concorn with s o m exotic coatings mnpcted
directly into the blood stfeein. Consuhstion with a plastik
surgeon or reconstructive hand sugeon m y be advisebh.
Spray Gun Safety Devices
Be sure all gun safety devices ere operating properly before
e8ch use. Do not remove or modii any part of the gun; this
can cause a malfunction and result in serious bodily injury.
Safety Letch
Whenever you stop spraying, even for e moment, always set
the gun safety latch in the closed or "safe" position, making
the gun inoperative. Failureto sat the safety latch can
m u l t in
ecddental triggering ofthe gun.
Muser
The gun diffuser breaks up spray end reducesthe riskof fluid
injectionwhen the tip is not installed. Check diffuser operation
qularly. Follow the Pressure Relief Procedure, below,
thenremove the spray tip. Aim the gun into e metal pail,
holding the gun firmly to the pail. Using the lowest possible
pressure, trigger the gun.If the fluid emitted is not dftused into an irregular atream, replace the diffuser immediately.
Ti Guard
P
A WAYS have the tip guerd in place on the spray gun while
spraying. The tip guard alerts youto the fluid injection hazard
and helps reduce, but does not prevent, the risk of accidentally placing your fingers or any part of your body close to the
spray tip.
Tnggar Guerd
Always have the trigger guard
in piaca on the gun when spraying to reduce the risk of accidentally triggering the gunif it is
dropped or bumped.
Spray l i p Safety
Use extreme caution when cleaningor changing'spray tips. If
the spray tip clogs while spraying, engage
the gun safety latch
immediately.ALWAYS
follow the Pressure Relief Procedun and then remove the spraytip to clean it.
NEVER wipe off build-up aroundthe spray tip untilpressure is
fully relieved and the gunsafety latch is engaged.
Pressure Relief Procedure
To reducethe risk of serious bodily injury, including
fluid injection, splashingfluid or solventin the eyea oron the skin, or injury
from moving parts or electric shock,always follow thii procedure w,henevw you shut offthe spravw, when chqkin or seMcing anypart of the spray system,'when installing,cleaning orchanglng spray tips, and
whenever you atop spraylng.71) Engage
the gun safety latch. (2) Turn the ON/OFF switch to OFF. I31 Unplug the power supplycord. 14) Disengagethe gun safetv latch.
(61 Hold a metal partof the un firmly to the side of a grounded metal pail, and triggertha gunto relieve pressure.(61Engage the
gun safety latch. 17) Open $a pressure relief valve, havinge container readyto catch the drainage. 18) Leave the pressure relief
vav
le open until you are ready to spray again.
i
If you suspecl that the spray tip or hose is comp/ms+ dogged, or that pressure , h s not been fully dieved after following the
steps above, VERY SLOWLY loosen the tip guard retainingnut or hose endcoupllng and relieve pressure gradually, then loosen
completely. Now clear the tip or.hose.
LATCH
TURN SWITCH TO OFF
UNPLUG CORD
EQUIPMENT MISUSE HAZARD
FIRE OR EXPLOSION HAZARD
General Safety
Any misuse of the spray equipment or accessories, such as
overpressurizing, modifying pans, using incompatible
chemicals and fluids,. or using
worn or damaged parts, can
cause themto rupture and resultin fluid injection, splashingin
the eyes or on the skin, or other serious bodily injury, fire, explosion or property damage.
Static electricity is created by the high velocity flow of fluid
through the pump and h w . If every part of the spray equipment is not properly grounded, sparking may occur, and the
systemmaybecomehazardous.Sparkingmayalsooccur
when plugging in or unplugging a power supply cord. Sparks
can ignite fumes from solvents and the fluid being sprayed.
dust particles and other flammable substances, whether you
are spraying indoors or outdoors, and can cause a fire or explosionandseriousbodilyinjuryandpropertydamage.
h a y s plug the sprayer into an outlet et least 20 feet 16 ml
away from the sprayer and the spray area. Do not plug in or
is
unplug any power supply cords
in the spray area when there
any chance of igniting fumes still in the air.
NEVER alter or modify any pan of this equipment; doing so
could cause it to malfunction.
CHECK all spray equipment regularly and repair or replace
worn or damaged parts immediately.
Alwayswear protective eyewear,glovesand
clothing as
recommended by the fluid and solvent manufacturer.
System Pressure
Thii sprayercandevelop
3@JO psi 1210 bad MAXIMUM
WORKING PRESSURE. Be sure that all spray equipment and
accessoriesarerated
to withstandthe maximum working
pressure of this sprayer. DO NOT exceed the maximum working pressureofanycomponentorecoessoryused
in the
system.
Fluid and Solvent Compatibility
Alwaysread the fluid and soivent manufacturer‘s literature
before using them in this sprayer.
If you experience any static sparking or even a slight shock
whileusingthisequipment,STOPSPRAYING
IMMEDIATELY. Check the entire system
for proper grounding.Do not
use the system egainuntil the problemhas beenidentified and
corrected.
Grounding
To reduce the risk of static sparking, ground the sprayer and
all other spray equipment used or located in the spray area.
CHECK your local electrical code for detailed grounding instructions for your area and tvpe of equipment. BE SURE to
ground all of this spray equipment:
1.
Sprayer: plug the power supply cord, or extension cord,
each equippedwith an undamaged three-prong plug,into
a properly grounded outlet.Do not use an adapter.All extensmn cords must have three wires and be rated for 15
amps.
2.
Fluidhoses: use only grounded hoseswith a maximum of
500 feet (150 m l combined hoselengthto ensure grounding continuity. Refer to Hose Groundlng Continulty.
HOSE SAFETY
High pressure fluid in the hoses can be verydangerous. If the
hose develops a leak, split or rupture due
to any kind ofwear,
damage or misuse,the high pressure spray emitted
from it can
cause a fluid injection injury or other serious bodily injury or
property damage.
ALL FLUID HOSES MUST HAVE SPRING GUARDS ON
BOTH ENDS1 The spring guards hdp protect the hose from
kinks or bendsat or close to the coupling whichcan result in
hose rupture.
3. Spray gun: obtaingroundingthroughconnection
4.
Object being sprayed:according to local code.
TIGHTEN all fluid connections securelyM o r e each use. High
pressurefluidcandislodge
a loose coupling orellow high
pressure spray to be emitted from the coupling.
5.
Fluidsupply container: according to local code.
NEVER use a damaged hose. Before each use, check the entire hose for cuts, leaks, abrasion, bulging cover, or damage or
movement of the hose couplings. If any of these conditions
exist, replace the hose immediately. DO NOT try to recouple
high pressure hose or mend
it with taim or any other device.A
repaired hose cannot contain thehigh pressure fluid.
HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on
hoses to move equipment.Do not use fluids or solvents which
are not compatible with the inner tube and cover
of the hose.
DONOTexposeGracohose
to temperaturesabove 180°F
lE2°Cl or below -4O’F l-40°Cl.
Hose Grounding Continuity
Proper hosegrounding continuity is essential to maintaining a
grounded spray system. Check
the elactrical resistanceof your
fluid hoses at least once a week. If your hose does not have a
tag on it which specifies the maximum electrical resistance,
contact the hose supplier or manufacturer for the maximum
resistance limits. Use a resistancemeter in the appropriate
range for your hose to check the resistance. If the resistance
exceeds the recommended limits, replace it immediately. An
ungrounded or poorly grounded hose can make your system
hazerdous. Also read FIRE OR EJCPLOSION HALARD.
to a
properly grounded fluid hose end sprayer.
6. All solvent pails used when flushing, according to local
code. Use onlymetalpails, which era conductive. Do not
place the pailon a non-conductivesurface, such as paper
or cardboard, which interrupts the grounding continuity.
7.
To maintain grounding continuity when flushing or rdievingpressure, always holda metal partof the gunfirmly to
the side of a grounded metal pail, then trigger the gun.
Flushing Safety
Reduce the risk of injectioninjury, static sparking, or splashin
by following the specific flushing procedure given on page
15
Rellef Procedura on
of this manual. Follow the Pressure
page 4. and removethe spray tip before flushing. Hold a metal
part of the gun firmly to the side of a metal pail and use the
lowest possible fluid pressure during flushing.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers or other
body parts. KEEP CLEAR of moving parts when starting or
operating the sprayer.Unplug the sprayer,and follow the
Pressure Rellaf Procedure on page 2, before checking or
servicing any part of the sprayer to prevent it from starting
accidentally.
IMPORTANT
United states Government safety standerds have been adopted under
the Occupational Safety and Health Act. These standarda-partiCUhly the General Standards, Pan 1910. and the Construction Standards, Part 19iS”should be consulted.
307-788
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MT
La pulv6risation d haute pression peut causer des blessures trds graves.
R6serv6 exclusivernent B I'ueage professionnel. Observer toutes les consignes de s6curit6.
Bien lire et bien comprendre tous les rnanuels d'instructions avant d'utiliser le mat6riel.
RlSQUES D'INJECTIOIV
Conaignea gBn6reles de aBcurit6
Cat appareil produit un fluida B t r b haute pression. Le fluide
pulverise parle pistolet oule fluide sous pression provenant de
f u i i ou de rupturespeut pdnetrer sous la penuou B I'inthur
t d s graves, voir d m e une
du cow et erdteiner des blessurea
amputation. MBrne sans &re o u s pression, la fluida Bclaboussantou
antrant dans 1 8 8 yeux peut aussi entrahrerdes
blessures graves.
NE JAMAIS pointer le pistolet vers quelqu'un ou vers une partie qualconqua du corps. NE JAMAIS mettre la main ou 188
doigtu sur I'ajutage du pulv4riasteur. NE JAMAIS essayer de
"refouler" la peinture. Cet eppareil West PAS un mmpresseur
pneumatique.
TOUJOURS garder la protection de I'ajutage en place sur ie
pistolet pendant la pulv6risation.
TOUJOURS observer la March B S u l v n pour DBtendra la
Pmslon donn4e plus loin, w e n t de nettoyer ou d'enlever
I'ajutage du pulv4risateur. ou d'effectuer un travail quelconqua sur une panie de I'appareil.
NE JAMAIS essayer d'arr&er ou de devier 188 fuites avec la
main ou la corps.
Avant chaqua utilim'on, bien s'assurer que 188 dispositiis de
seCuii6 fonctionnent correctement.
Soina mBdiceux
En cas de p6n4tration de fluide sous la peau: DEMANDER
I M M E D I A T E M E NDTESSO I NMSE D I C A U X
DURGENCE.
NE
PAS SOIGNER CElTE BLESSURE
COMME UNE SIMPLE COUPURE.
Le dffuseur dupistolet SBR 8 diviser la jet et B reduire les risquesd'injectionaccidentallaquandI'ajutage
n'est pas en
place. VBrifier la fonctionnement du diffuseur r4gulibrement.
Pour cena v6rification. d&endre la pression en observant la
Marcha B Sulvre pour DBtendre la Presslon donnb plus
loin puis enlever I'ajutage du pulv4risateur. Pointer le pistolet
dans un sew en m4tai. en le maintenant fermament contra la
mau. Puis, en utilisant la pression la plus faible possible, eppuyer sur la gachetta du pistolet. Sila fluide projet4 n'estpas
dffus6 sous forma de jet irr4gulier. ramplacar irnm6diatament
le diffuseur.
Protection de I'ajuta e
TOUJOURS maintenirt protection de I'ajutage en place surle
pistolet du pulv6risateur pendant le pulv4risation. La protection de I'ajutage mire I'anantion sur 18s risques d'injaction et
wntribue B rkluire, rneis n'4vite pesle risque, que 1 8 s doigts
ou une panie quelconque du corps ne passent accidentelle
ment B proximite immediatede I'ajutage du pulv6risateur.
Ada au madecln: La p e n h t i o n des fluides sous la paau
act un tmumtism. II en Important de tralter
chlrurglcalament cette bleMure lmm6dlatemant. Ma
pag m r d a r le traitamant pour affectuar das racherches sur
la toxi&. Camins mev8nrments axotiques sontdangmuse
m n t mxiquas quand 17s sont i n j a d s diracrement dans le
sang. II act souhaitabla de consutter un
chimrghn esthdtiqua
ou un chimrgienspecisrise dans la mnsbvction des mains.
Dispoaitifa de aBcurIt6du pietolet
Avant chaqua utilisation, bien s'as8ure que
tous Ies disposkifs
deseCurit4du
~ist~let
fonctionnentcorrectemant. Ne m s
du
Conai nea de sBcuritBconcernantI'aiutege
pulv&isateur
Faire extr6mement attentionB I'occasion du nettoyage ou du
remplacemant dm ajutages du puldrisateur. Si I'ajutaga 88
bouchapendant la pulv6risation.mattreirnrnbdietement !e
verrou de s6curit6 du pistolet. TOUJOURS bien observer la
Marche B Sulvre pour DBtendre la Presslon puis enlever
I'ajutage du pulv4risateur pour la nettoyer.
NE JAMAIS essuyer ce qui s'est accumul4 autour de I'ajutage
du pulvbrisateur avant que la pression ne soit completement
t o m b et que le verroudes6curit6dupistolet ne soit engag6.
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enlever ni modifier una panie quelconque du pistolet; ceci risquerait
d'antrarner
un mauvais
fonctionnement
et des
blessurea graves.
Verrou de s6curitk
A chaque fois qua I'on s'arrbte de pulvbriser, m h a s'il s'agit
d u n court instant, toujours mettre le verrou de s4curit6 du
pistolet sur la position "ferm4e" ou "s4curit4" ("safe") pour
empecher ia pistolet de fonctionner. Si le verrou de s6curit4
n'em pas mis, le pistolet peutse dklancher accidentellemant.
Voir la Fig. 3.
DHuser
-.
Marche a Suivre pour DBtendre la Presaion
Pourreduire Is risquesdeblessureagraves,
y compris Ies blessuresparinjectiondefluide
ou cee
l s causeeS pardes
Bclaboussures dansles yeux ou eur la p u . des piecesen mouvemant ou par 4lactrocution.
toujoura bien observer catte marche
B suivre B chaque fois que I'on a r r h la puldrisateur, I'occasion de la v4rification ou de la reparation d'une piece de I'appareil
de pulvbwtbn, B I'occasion de I'innslletion,du nettoyage ou du remplacemant desajutages et d'une maniere g4n6raleB chaqua am. 11 Engagar le verrou de skurite du pistolet.21 Meme I'interrupteur MarcheArrBt sur ARRET ("OFF"). 3) DBbrancher
le cordon d'allmantation. 41 O b n agar le vermu de s4curit4 du pistolet. 51 En rnaintenant une panie metallique du pistolet
fermement a p p u w contre le c6t4 #un seau en metal, appuyerwur la gachettedu pistolet pour lib4rerla pression. 6) Engager le
YB(T0u de 84curit4 du pistola. 71 Ouvrir la swpape de s6curita en prenant soin d'avoir un recipient pr@t B r4cup4rar le liqulde.
81 hisser la soupap ouverte jusqu'b ce qua la pulv4rissteur sok de nouveeu pr@t8 &re utili&.
1
L
4
307-786
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7
RISQUES EN CAS DE MAUVAISE UTlLlSATlON DU MATERIEL
Pression
Consignes gBn6rales de s6curit4
Toute utilisation anormale de I'appareil de pulv6risation ou des
accessoires comma, par exemple, la mise sous une pression
excessive, Ias modifications de pibces. I'utilisation de produits
chimiques et dematibresincompatiblesetI'utilisationde
pieces u & s ou a b i m k peut causer des d4gAtsB I'appareil ou
des ruDtures deoikes et entrainer une iniectionde liauide
~- ou
d'autris blessures serieuses, u n incendie, une explosion ou
d'autres d6gAts.
NE JAMAIS alterer ou modifier une pibce de cet appareil; caci
risquerait d'entrainer son mawais fonnionnement.
VERIFIER rbulibrement toutI'appareil de pulverisation et ses
Bquipements et reparer ou remplacerimmediatement Ies
pieceS u&s ou abtmks.
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Ce pulvbrisateur peut produire unPRESSION MAXIMUMDE
TRAVAIL 270 bar f 3 w o Ib/po. 1. S'assurer que tous les
Bl4ments du pulvbiisateur etses accessoires sont concus pour
resister B la pression maximum de travail de ce pulv6risateur.
NE PAS dbpasserla pression maximum de travail d'aucun des
Bl4ments ou accessoires utilisk avec cat apparel
3
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Compatibilite chirnique des corps
Toujours lire soigneusement Ies documents et brochures du
fabricant des fluides et mkants utilises avant de s'en servir
dans ce puIvBriseteur.
MESURES DE SECURITE CONCERNANT LES TU1'AUX FLEXIBLES
La fluide B haute pression circulant densles tuyaux peut &re
fuite sur le tuyau, de fissure,
d4chirure ou rupture B la suite deI'usure, de deglits ou d'une
mauvaise utilisation, Ies projections de fluide haute pression
qui en proviennent peuvent entrainer des blessures graves par
penetration sous la peau ou par contact. ainsi que des d4glits
mat6riels.
TOUS LES TUYAUX FLEXIBLES DOIVENT AVOlR DES
RESSORTS SPIRALE DE PROTECTION AUX 2 BOUTS1
Les spirales de protection contribuent B Biter la formation de
pliures, de bouclesoude nwuds sur Ies tuyaux qui pourraient
entrainer la rupture du tuyau B I'endroit du raccord ou B son
voisinagb.
SERRER FERMEMENTtous I e s raccords avant chaque utiiisation. Le fluidesouspressionpeutfairesauter
un raccord
desserre ou produireun jetB haute pression s'echappant par
la
raccord.
NE JAMAIS utiliseruntuyau
endommag6.Avantchaque
utilisation, verifier entibrement chaque tuyeu pour deceler Ies
wupures, fuites, abrasions, boursouflures de I'enveloppe ou
toute autre deterioration ou jeu des reccords.
Si I'on constate
I'unedecasd6t6riorations.
il faut remplacer le tuyauimm6diatement. NE PAS essayer de refaire
le raccord d'un tuyau
haute pressionni de dparer le tuyau avec du ruban adhkif ou
trbs dangereux.Encasde
par tout autre moyen. Un tuyau repad ne peut pas resister au
fluide sous pression.
MANIPULER
LES
TUYAUX
AVEC
PRECAUTION
ET
CHOlSlR SOIGNEUSEMENT LEUR CHEMIN.Ne pas deplacer
le fluide an tirant sur le tuyau. Ne pas utiliser de fluidesou de
solvants qui nesontpascompatiblesavecI'enveloppe
interieure ou exterieure du tuyau. NE PAS exposer le tuyau B
des temperatures superieuresB 82°C (180°F)ou inferieures B
4 ' C (-4OOFI.
Continuit6 de la mise B la t a r r e des tuyaux
Une bonne continuite de la mise B la terra destuyaux est
essentielle pour rnaintenir la mise B la terre de I'ensemble de
vaporisation. VBrifiez la resistance Blectrique de vos tuyauxB
fluides et B air, au moins une fois par semaine. Si votretuyau
ne wmporte pas d'etiquene qui precise la resistance Blectrique maximum, prenez contact avec le fournisseur de tuyaux
ou la fabricant pour avoir Ies limites de resistance maximum.
Utilisez un metre de rhsistence de iagemme approprik pour
votretuyau et vbrifiez la resistance. Si celle-cidbpasse Ies
lirnitesrecommandbs,remplacer
le tuyauimrn4diatement.
Un tuyau sans mise
B la terre ou avec une mise
B la terre incorrecte peut entraner des risques pour votre systbme. Lisez pussi
LES RISQUES D'INCENDIE OU D'EXPLOSION ci-dessus.
RISQUES D'INCENDIE OU D'EXPLOSION
De I'Blectricit6 statiqueest produite par le passage du fluide B
grande vitesse densla pompe et dens Ies tuyaux. Si toutes Ies
pieces de I'appareil de pulverisation ne sont pas convenablemem reliks B la masse ou B la terre, des etincelles peuventse
produire et I'appareil risque d'Hre dangereux. Des etincelles
peuvent 4galement sa produire B l'occasion du branchement
ou du debramchementdu cordon d'alimentation. Les Btincelles
sont suffisantes pour allumer Ies vapeurs de solvants et le
fluidepulvbrii6, Ies finesparticulesdepoussihreainsique
d'autres substances inflammables, quand on pulvbrise A I'interieur ou B I'exterieur, et alles peuvent causer un incendie ou
une explosion, ainsi que des blessures graves et des d6gAts
mat6riels. Toujours brancherle pulvbrisateur dans une prise
se
trouvant B au moins6 m ( 2 0 piedsl de I'appareilet de I'endroit
ob 88 fait la pulv6risation. Nepas brancher ou debrancher un
cordon d'alimentationque1 qu'il soit dansla zone ob se fait la
pulv4risation quand il y a IS moindre risque que des vapeurs
encore p r h n t e s dens I'alr prennent feu.
S'il se produit des etincelles d'Blectricit6 statique. ou si vous
resentez la moindre dbcharge, ARRETE IMMEDIATEMENT
LA PULVERISATION. VBrifiez que le system entier est bien
mi B la terre. Ne vousSEN~Z pas du systbme avant quele probdme soit identifie et corrig6.
M i s e B la terre ou B la masse
Porlr reduire1 8 5 risques de production d'etincelles d'dlectricit4
Ies Bquipements utilisbsou se
statique, le pulv4risateur at tous
trouvant dans la zone de pulvhisation doivem &re relies B la
Wrre ou B le masse. Pour connaitrele detail des instructions de
mise B la terra dans la region et le type particulier d'Bquipe
ment, CONSULTER le code ou 1 8 5 rbglementations Blectriques
locales. S'ASSURER que tous Ias Bquipemants de pulvhisation suivants sont bien reliesB la terra:
1. F7dvc%sateur:
Branchsr le cordond'alimentation ou la
rallonge qui doivent e
r€
ti equip& d'une prise B 3 fiches en bon
&at.dans una prise de courant conveneblernent mise
9 la
term. Ne pes utiliser d'adaptateur. Toutesles rallonges doiwnt
m i r 3 fils et &re preVues pour 15 ampbres.
2. Tuvaux flexibles:
Afin d'assurer la continuit6 de la mise B la
terra,~n'utilissr quedes tuyaux comportant une miseB la terre
et ayantunelongueurmaximum
combinb de 150 m
(1500 piedsl. Se reporterBgalementauparagraphe"Continult4 du circult de rnlse A la terre des tuyaux".
3. pistolet: RBaliser la miss B la terre en le raccordant B un
tuyau flexible etB un pulvbrisateur d6jB convenablementrelib
B la terre.
4. R6cipient d'elimentetion: ObseNEr le code ou les reelementations locales.
5. Objets, met6rid ou surfaces rec8vent le pulv6risetion:
observer le code ou Ies r6glementations locales.
6. Touslesseaux de solventsutilisk pour le rincage: observer
le code ou Ies rbglementations locales.
NuMiser que des seaux
m6tallqu8s conducteurs de I'Blectricite.Ne pas mettrele seau
sur une surface non conductrice comme surdu papier ou du
carton car cela interrompraitla wntinuite la la mise B la terre.
7. Pour conserverI8 continuit6 de le mise B le tern, quend on
rince le materiel ou quend on lib& la pression.toujours
rnaintenir une partie metallique du pistolet fermement
appuyk
contre le c8te d'un seau en metal puis appuyer surla detente
du pistolet.
Mesures de SBcurit6 concernant le Rincage
Pourreduire Ies risquesdeblessuresparpenetrationde
la
peau et les risques dQs eux Btincelles d'Blectricit6 etetique ou
aux klaboussures, observer la marche B Suivre pourle rincage
donnk B la page 12 de ce manuel. Observer la "Marche A
Sulvre pour Dbtendre le Pression" donnee B la page 4 en
enlevar i'ejutege du pulv4risateur eventle rincage. Maintenir
une partie rnetalliquedu pistolat fermementappuyb contre le
c8t4 d'un seau en mdtal et utiliser la pression la plus faible
possible'pendant le rincage.
307-786
6
, ,:
..F
EL ROCIADO A ALTA PRESION PUEDE CAUSAR GRAVES LESIONES.
SOLO PARA US0 PROFESIONAL. RESPETE LOS AVISOS DE ADVERTEMCIA.
Lea y entiande todo el manual de instrucciones antes de manejar el equipo.
PELIGRO DE INYECCION DE FLUID0
Seguridad general
Este equipo genera un fluido a unapresi6nmuy
alta. El
mciedo de la pistola, 10s escapes de fluido o roturas de 10s
componentes pueden inyectar fluido en la piel y el cuerpo y
causar lesiones extremadamente graves, incluyendo
a veces la
el fluido inyenado o
necenidaddeamputaci6n.Tambi4n.
salpicado en 10s ojos puede causar gravw dabs.
NUNCA apuntar la pistola hacia alguien o elguna pane del
cuerpo. NUNCA colocerle mano o los dedos encime dela boquilla. NUNCA tram de "hacer retomar la pintura"; este NO
es un sistema de mciado de aire.
SIEMPREtenercolocado el protector de la boquilla en la
pistola mientras sa est4 pulverizando.
SIEMPRE seguirel procedimiento de deacarga de preal6n.
dado m4s abjo, antes de limpiar o sacar la boquilla o de dar
servicio a cualiquier equipo del sistema.
NUNCA tratar de pararo desviar 10s escapes con la mano o el
cuerpo.
Aseeurarque todos los aparatosdeseguridaddel
equip
esten funcionando bien antes de cada uso.
..- ....-.. ... .-"
Pestillo de seguridad
Cada vez que 88 deje de pulverizar, aunque 888 por un breve
momento.siemprecolocar
el pestillo deseguridad en la
posici6n"cerreda", lo quedeja la pistola inoperante. El no
hacerlo puede llevar al disparo imprevisto de la pistola.
Dzusor
€idfusor de la pistola dispersael chorro pulverizadoy reduce
el riesgo de inyecci6n cuando no est4 instalada la boquilla.
Revisar con regularidad el funcionamiento del difusor. Seguir
al procedimiento de deacarga de presI6n. dado m4s abajo,
y despuk sacar la boquilla.Apuntar le pistola a unbalde
methlico,sosteni4ndola bien firme contra 41. Utilizando la
presi6nm4s bajo posible,disparar la pistola.Si el fluido
emitido no sale disparso en un chorro irregular, reemplazar de
inmediato el dfusor.
Rotector de la boquilla
Traramirntn mAdinn
"
Aparatoa de segurided de la piatole pulverizadore
Awgurar que todos 108 aparatos protectores delapistola
Bsten funcionandobien antesdecadauso.Nosacar
ni
modificar ninguna pieza de la pistola puespodrlacausar el
malfuncionamiento de la mbma con18s consiguientes Iesiones
parsonales.
"
Si pareciara que un poco de fluido penetr6 la piel, conseguir
TRATAMIENTO
MEDICO
DE URGENCIA DE INMEDIATO. NO TRATAR LA HERIDA COMO UN SIMPLE
CORTE. Decir al medico exactnmente cua fluido fue.
Avlso a1 medlca. Sisa Ilega a inyectar esta fluido enla pid
w
. causauna lm5n traumdtica. Ea Importantetratar
qulrhglcamente le leal6n a le brevedad poalble. No
demomr el tratamiento para investigar la toxiciidd. Le toxicidad es elgode s u m importancia en elgunas pinturas
exdtices cuando se inyactan
directamants
el tonante
sanguineo. Sird convenianta consultar a un espacidista en
cirugia pldstica o reconstructive de las mnos.
SIEMPREtener el protector delaboquillacolocado
en la
pistola mientras sa est4 pulverizando. Este protector llama la
atenci6n contrael peligro de inyecci6ny ayuda a reducir, per0
no evita, la coloeaci6n accidental de10s dedos o cualquier otra
pane del cuerpo cera de la boquilla.
Seguridad de la boquilla pulverizsdora
Tener mucho cuidado el limpiar o cambiar Ias boquillas. Si
llegara a obstruirse mientras est4 pulveiuando. enganchar el
pestillo de la pistoledeinmediato.SIEMPREseguir
e1 procedlmlento de deacerga de pres1611y despuk sacar le boquilla para limpiarla.
NUNCA limpiar la acumulaci6n de pintura alrededor dela boquilla ante8 deque ae heyadescargadoporcompleto
le
pres1617 y el pestillo est4 enganchado.
Procedlmlento de descarga de preai6n
Pare reducirel riesgo de sufrir graves lesiones corporales. incluyendo inyecci6n
o lesionm causadas porp i a s en movimiento o
choque el4ctrico. slempra seguir
este procedimiento al apagar la dquina pulverhdora, al rwisar o dar sawicloa cualquier pane
del sistema de pulverlzacibn, al instalar, limplar 0 cambiar 185 boquilles, y cada vez que 88 deja de pulverizar. (1) Enganchar el
pestill0 de la pistola. (2) Mover el interruptor el4ctrico (ON/OFFi a la posici6n OFF (apagado). (3) Desenchufar e1 corddn
elbctrico. (4) Desenganchar el pestillo de la pistola. (51 Sujetar una parte met4lica de ia pistola bien firme contra un balde de
metal. y disparar la pistola para descargarla presi6n. (61 Enganchar ei pestillo dela pistola. (7) Abrir la v6lvula deprkion y tener
list0 un reclipiente para recibirla pintura. (8) Dejar la v4lvula de alivio de
pdsion abiene hasta quese est4 nuwamente list0 para
pulverizar.
Sise sospeche quela boquilla o la mnguera astd complatenmnte obstruida,o que nose ha dascargado pormmpleto l e p m 5 n
despudp de haber seguidoelprocedimanto anterior, aflojar MUY LENTAMENTE la tuerca de retenci6n del protector de
la bo.
quilla o ecoplamiento de la punta de la manguera y descargar gredualmentela presi6n. despuk, aflojarlo por completo. Luego,
despejar la boquilla o la manguera.
1
2
3
PELIGRO POR MAL U S 0 DEL EQUIP0
Segurided general
o 10s accesorios,tal
Cualquier mal us0 del equipo pulverizador
como sobrepresurizaci6n.modificaci6ndepiezbs,us0de
materiales y productos quimicos incompatibles, o utilizaci6n
de piezas dafladaso desgastadas, puede hacen quese rompan
y causen la inyecci6ndefluidouotraslesionescorporales
graves, incendio. ex~losi6n
o daflon a la Drooiedad.
.
NUNCA alterar o modificar ninguna pieza de este equipo; el
hacerlo podrla causar una averia.
REVISAR con regularidad e1 equipo pulverizador y reparer o
reemplazar de inmediato 18s piezas dafladas o desgastadas.
Presi6n del sisteme
M a pulverizadora puede desarrollar 210 barlas~3OOOpsi) de
PRESION DE TRAEAJO MAXIMA.' Asegurarque todo e1
equipo pulverizadory sus accewrios tienenla capacidad para
eguantar la piesi6n rnbxime de trabajo de este pulverizedora.
NOexceder la presi6nmbxirnadetrabajode
n i n g h componente o eccesorio de este sistema.
Competibilided de fluido
y
Siempreleer 18s instruccionesdelfabricantedelfluid.0
solvente antes de usarlos eneste pulverizadora.
. .
SEGURIDAD EN EL U S 0 DE LAS MANGUERAS
Fl fluido que escapa e aka presi6n por Ias mangueras puede
ear muy peligroso. Si enla manguera se desarrolla un escape,
una rotura o rajaduradebido a cualquier tip0 dedesgaste.
daflo o maltreto, el chorro a alta presi6n emitidopor alli puede
ceusaruna lesi6n por inyecci6n u otras Iesiones corporales
graves o daflos a la propiedad.
ITODAS LAS MANGUERASPARAFLUIDOSTIENEN
QUE TENER GUARDAS DE RESORTE EN AMBOS EXTREMOSl Estas protegen Ias mengueras contra dobleces o
retorcedures en 10s acoplamientos o c e r a de ellos, 10s que
podrlan traducirse en roturas de la manguera.
18s conexiones.
Antes de usadas, APRETARbien firmes todas
un acoplamiento suelto
El fluido a alta presi6n puede desalojar
o dejar que por 61 escape un chorro a alta presi6n.
est6 daflada.Siempre.
NUNCAusarunamangueraque
revisarla en busce de cortadures. escapes, abrasibn, cubiena
abultada. o acoplamientos sueltoso daflados. Si llegara a encontrarsa cualquiera de mas condiciones, reernplazar de inmediato la manguere. NO intentar reacoplar una manguera de
aka presidn o enmendarla con cinta adhesive u otro material
similar. Una manguera que ha sido remendada no aguante el
fluido a alta presi6n.
MANEJAR' Y PASAR
CUIDADOSAMENTE
LAS
MANGUERAS.No tirar de Ias manguerasperamover
el
equipo. No usar fluidos o solventes que Sean incompatibles
con el tub0 interno y la cubierta dela manguera. NO exponer
18s mangueras a temperaturassobre RZ'C (180°F) o bajo
4 ' C (4°F).
Continuidad del circuito de puesta a tierra de le
manguere
La continuidad del circuito de puesta e tierra apropiado es
esencial
para
mantener
conectado
a tierra e1 sistema
pulverizador. Es indispensable revisar la resistencia electrica
maxima de18s mangueras de sire
y de fluido porlo menos una
vez a la semana. Si la manguere no tiene una etiqueta en la
cual se especifica la resistencia eldctrica maxima, ponerse en
wntacto con el proveedor o fabricante dela manguera parala
informaci6n sobre10s limites de resistencia. Usarun metro de
resistencia en la gama apropiada para comprobar la resistencia; si excede 10s llmites recomendados, reemplazarla de inmediato. Es muy arriesgado tener una manguera sin puesta a
tiena o con la puesta a tierra en malas condiciones. Leer tarnb i h la informacidn sobre
RIESGO DE INCENDIO0 EXPLOSION, mbs arriba.
PELIGRO DE INCENDIO 0 EXPLOSION
El flujo a aka velocidad del fluido al pasarpor la bomba y
manguera crea electricidad estbtica. Si todas las partes del
equipopulverizador no tienenbuenatierre,puedenocurrir
chispas, conviniendo a1 sisterna en algo peligroso. Tambih,
pueden producirse chispas a1 enchufar o desenchufar e1 cord6n el6ctrico. Estas chispas pueden inflemar 10s vapores de
10s solventes y el chorro de fluido pulverizado, partlculas de
polvo y otras sustancias ibAamables, 888 al aire libre o bajo
techo, lo que podrla causer una explosi6n
o incendio y graves
Iesiones corporalesy dahos a la propiedad. Enchufar siempre
la pulverizadora a un tomacorriente queea encuentre a por Io
menos 6 m (20 pies) de la mbquina y del brea que se va a
mciar. No enchufaro desenchufer ningtjn cord6n el4ctrico en
e1 lugardonde eaest6 rociandocuandotodaviaexista
la
posibilidad de que queden vapores inflamables en el aire.
Si ocurre una chispa de electricidad estbtica
o incluso un ligero
choqueel6ctricomientras
se usa e1 equipo,OWARDE
PULVERIZARDEINMEDIATO.Revisar
todo el sistemaen
busca de una tierra apropiada. No usar de nuevo el sistema
hasta haber identificado y solucionado e1 problema.
Pueste e tierre
a tierra la
Para reducir el riesgo de chispas estbticas, conecter
pulverizadora y todo el otro equipo de pulverizar que
88 use o
se encuentre en e1 luger que se va a rociar. CONSULTAR el
c6digo el6ctrico de
la localidad paraIas instrucciones sobre185
conexiones a tierra exigidas pare la zona y tip0 de equipo.
ASEGURAR
de
conectar
a tierra todo este
equipo
pulverizador:
1. Rdverizadora: enchufar e1 cord6n el6ctrico. o cable extensor, cada uno con un enchuf de tres patas
en buen estado, a
un tomacorriente con puesta a tierra apropiado. No usar un
adaptador. Toto8 10s cables extensores tienen que tener tres
hilos y una capacidad de 15 amperios.
2.Mengueraspare fluidos:usar
solamentemanguerascon
puesta a tierra
de
una
longitud
combinada
de
150
m
( 5 0 0 pies), para asegurar buena continuidada tierra. Referirse
tambih al pbrrafo
sobre
continuidad e tierrade
la
manguera.
3. pistola:hacer
le puesta a tierraconectbndola a una
manguera de fluidoy pulverizadora bien conectadasa tierra.
4. Suministrar un recipiente:deacuerdo
a1 c6digode le
localidad.
5. Objeto quesa est6 rociando: de conformidad cone1 c6digo
local.
6. Todos /os beldes de solvente usados durante
e1 lavado, de
conformidad con el c6digo local. Usar solamenta baldes de
metal,queSean
conductivos.Nocolocar
el baldeenuna
superficie no conductiva,comopapel o can6n.queinterrumpe la continuidad a tierra.
7. para mantaner la continuidad a tiem durante el levado o
descarga de presidn, siempre apoyer una parte metAlica de la
pistolabienfirmecontra
el costadodelbaldede
metal,
despuk apretar el gatillo.
Segurided durante el levado
so inyecte o salpique fluido en la
Para reducir el riesgo de que
piel, o que ocurra una descarga de electricidad estbtica, siempreseguir Ias INSTRUCCIONES PARA EL LAVADO. dadesen
la pbgina 12. Seguir el procedlmlento de descarga de
presldn en la pbgna6. y quitar la boquilla mciadora antes de
levar. Apoyar una parte methlica de
la pistola bien firme contra
el costado de un belde de metal y user le presi6n mbs baja
posible de fluido durante e1 lavedo.
PELIGRO DE LAS PIEZAS MOVILES
Las piezas en movirniento pueden pinchar
o amputar dedos u
otraspartesdelcuerpo.MANTENERSEALEJADOde
18s
piezas en movimiento durante el arranque o funcionamiento
de la pulverizadora. Desenchufar la pulverizadoray descargar
la presi6n antes de revisaro der servicio, a cualquier parte de
pulverizadora, para impedir que arranque inesperadamente.
IMPORTANT
Se han adoptado18s normas de seguridad del gobierno de
10s
Estados Unidos de Norteamerica bajoel Acta de Seguridady
SaludOcupacional.Oeberbnconsultarseestasnormas,en
especial 18s Generales, Parte 1910, y 18s Normas de Construcci6n. Parte 1926.
307-786
7
ULTRAN 760 BASIC COMPONENTS
Model P1-042shown
PRESSURE CONTROLKNOB
7
IREAKER
PAILHANQER
ONIOFFBWITCH
DISPLACEMENTPUMP
PRESSURE REI.IEF VALVE
MAIN FLUID HOSE
Your new UltraTM750 Sprayer functions and operates
differently than other airless paint
sprayers. This section
wil halp you become familiar with the sprayer before
operating It.
Prsuum Control
The pressure control Includesan ONlOFF switch forthe
sprayer, the pressure adjusting control knob, a pressure
sensing device; and e currant overload circuit breaker
with a manualreset button. I t s function is to control the
motor spwd so that the sprayer maintains constant
fluid pressure at the pump outlat.
Motor
The DC motor hassealedbaaringsandreplaceable
motor brushes. Itsfunction Is to drive the dlsplacamant
pump at therate needed to supply sufficient paint
volume at the selected pressure.
Working togather, the pressure control andmotor
cause the pump to cycle whenever there Is fluid or
pressure demand. Whenthe pump Is cycling, themotor
sounds like an automobile starter cranking. When the
pump Is not cycling, the motor hums, hums intarmittently, or appeanto have shut itself off.
However, there
will still be power to the sprayerand it will stay
pressurizedand ready to use unlessyou manually shut it
off and relieve pressure.
Because the motor is DC. It is less sensitive to low
voltage or voltage fluctustions than anAC motor, and a
heavy gauge extension cord of up to 150 feat (46 m)
can be used.
Drive Aesembly
The sealed driva assembly transfern power
from the DC
motor to the displacement pump.
Displacement Pump
The positive displacement, volume-balancad
pump providesequal fluid delivery on both the up and down
pump strokes. The pump has a wat-cup which, when
filled with Graco Throat SealLiquid,helpsprevent
damage to the throatpackings andpiston rod.
Ruld Filter
The fluid filter provide8 the final paint straining to halp
avoid dogs in the hose and spraytip. The filter includes
a reusable alemant end a preasura relief valva
for ralieving fluid pressure when shutting off the sprayer.
Hoaes
The grounded. nylon spray hogeg have spring guards on
both ends. The 50 foot (16.2 m) hose has a114 in. ID.
The 3 foot (0.9 m), 3/16 in. ID whiphose ellows flexible gun movement. The nylon hose material act8 as a
pulsation dampenerto absorb pressurefluctuations.
Spray GunB Reverae-A-Clean 111 Spray Tip
Grsco high pressure spray guns have a trigger safety
which prevents accidental triggering
When it is engaged
(sewbelow). The Reversa-A-Clean
111 spray tip uses high
pressure fluid to removeclogs from the spray tip
without removing it from the gun.It includes a safety
tip
guard which halpa reducethe risk of injection injury.
SETUP
1. Connect Hose and Gun (Refer to Fig 1.)
a.Remove
thaplasticcapplug
fromthe fitter
outlet nipple and screw the50 ft (15.2 m) main
fluid hose onto the nipple.
b. Connect the whip hosa-between thefluid hoae
and the gun inlet connection.
c. Don't use thread sealant. and
spray tip yet1
don? install the
WARNING
If you are supplying your own hoses and spray
gun, be sura they are electrically grounded and
rated for at least SXXW psi 1210 bar1Working
Resure, and that the gunhas a tip guard. This is
to reduce the risk of serious bodily injury caused
by staticsparkingand
fluid injection or overpressurizing and rupturing the equipment.
Ic
To avoid damaging the pressurecontrol, which
may result in poor equipment performance and
component damage, follow these precautions:
I
1. Always use nylonsprayhose of atleast
50 ft (15.2 m) Long.
2. Never use a wire braid
hose asit is tw rigid
to act as a pulsation dampener.
3. Never install any shutoff device between
the filter and the main hose. See Fig 2.
4. Alwavs use the mein filter outlet for onegun operation.
Never
plug
this outlet.
I
2. Fill Packing Nut/Wet-Cup (SeeFig 2.)
Fill the packing nutlwet-cup 1/3 full with Grew
Throat Seal Liquid (TSL), supplied.
3. CheckElectricalService
a. Be sure the
electrical
salyice
is 120 V,
60 HzAC, 15 Amp (minimum) and that the
outlet you use is properly grounded.
b. Use an extension cord which has 3 wires of a
minimum 12 gaugesize,and amaximum of
150 ft (45 m) long. Longer lengths may affect
sprayer performance.
4. Plug in the Sprayer
a. Be sure the ONlOFF switch is OFF.Refer to
Fig 3.
b: Plug the power supply cord into a grounded
electrical outlet that is at least 20 ft (6, m) away
from the spray area to reduce the chance of a
spark igniting the spray vapors.
c.
Do not removethe third prong of thepower
supplycordplug,which
is thegrounding
prong, and do not use an adapter.
6. fluah the pump to removethe lightweight oil
which waa left in to protect pump parts after factory thing.
a. Before
using
water-base
paint.
flush with
mineral spirits followed by soapy water, and
then a clean water flush.
b. Beforeusingoil-basepaint,
spirits only.
flush'with mineral
m3
. .
c. See FLUSHING GUIDELINES on page 12 for
flushing procedure.
6. Prepare the paintaccording to the manufacturer's
recommendations.
a. Remove any skin that may have formed.
b. Stir.the paint to dissolve pigments.
c. Strain the paint through a nife nylon mash bag
(available at most paint dealers) to remove perticles that could clog thefilter or spraytip. This
is probablythemostimportantsteptoward
troublefree spray painting.
-ARNING
Promure Rallef Procedure
Toreducetherisk
of seriousbodilyinjury, including fluid injection or splashing in the ayes or
on the skin, or in'ury from moving parts or electric
ahock,always
this procedurewhenever
you shut off the sprayer, when checkingor servicing any part of the spray system, when inqalling,
cleaningorchangingspray
tipa, endwhenever
you stop spraying.
/allow
1.
Engage the gun safety latch.
2. Turn the ONlOFF switch to OFF.
3. Unplug the power supply cord.
4. D i n g a g e the gun safety latch.
5. Hold a metel part of the gun firmly to the
side of s metal pail, and trigger the gun t o
MAINTAIN FIRM
METALTO METAL
CONTACT BETWEEN
GUN AND CONTAINER
relieve pressure.
8. Engage the gun safety latch.
7. Open the pressurereliefvalve,
having a
container readyto catch the drainage.
8. Leave the pressurereliefvslveopen
until
you are reedyto operate the sprayer wain.
BE SURE GUN SAFETY IATCH
IS ENGAGE01
If you suspect that the spray tip or hose is corn-'
pletely dogged, or that pressurehes not been fully
relieved efter following thesteps above,VERY
SLOWLYloosen the tip guardretaining nut or
hose and coupling and relieve pressure gradually.
Then loosen thenut completely. Now clear the tip
or hose obstruction.
1. Prime the Sprayer with Paint.
e. Close the filter's pressure relief valve.
See Fig 1.
b. Don't install the spray' tip yet
c.
Put the suction tube into the paint container.
d. Turn the pressure adjusting knob all the way
counterclockwise to lower the pressure setting.
e. Disengage the gun safety latch.
f. Hold a metal part of the gun firmly sgainst and
aimed into a metal waste container. See Fig 4.
.Squeeze the trigger and hold it open, turn thq
ONlOFF switchto ON, and slowly increase the
pressure setting until the sprayer starts. This
procedurereducestherisk
of staticelectric
dischargeandsplashing.Keep
the gun triggered until all air is forced out of.the system and
the paint f l o w freely from the gun.Release the
trigger end engage the safety.
NOTE:
If the pump ia hard to prima,place e containerunderthepressurereliefvalveand
open it: When fluid comes from the valve,
close it. Then disengagethe gunsafety latch
and proceed as in Step If, above.
8. Check all fluid connections for leaks. If eny sre
found, follow the Promure Rail& Procedure
Warning, above, then tighten connections.
2. Inatall the Spray Tip and Tip Guard
fRefer to Fin 5.1
e. Be sure-the-gun safety latch is engaged.
b. Unscrew the tip guard retaining nut from the
gun.
10
307-788
Rg 5
c. Install the Reverse-A-Clean" 111 spray housing
with tip installed. See theRAC 111 packaging
label for instructions.
d. lighten the retaining nut by hand until snug.
e.
Use a wrenchto tighten the retaining nut about
118 to 116 turn.
CAUTION
Overtightening the retaining nut will damage the
seat gasket end result in leakage.
3. Adjusting the Spray Pattern
e.
lncreese the pressureadjustingknobsetting
just until spray from the gun is completely
atomized. To avoidexcessiveoversprayand
fogging, and to decrease tip wear and extend
the l i e of the sprayer, ahnrays use the lowest
possiblepressureneeded to getthedesired
reaulta.
b. If morecoverage is needed, use a larger tip
rather than increasing the pressure.
c. Test the spray pattern. To adjust the direction
of the spray pattern, engsge the gun safety
latch and loosenthe retaining nut. Position the
tip so the groove is horizontal for aJorizontal
pattern or vertical for a vertical pattern. Then
tighten the retaining nut.
CAUTION
4. Operating Tips. Thesesuggestions will help prevent the motor from running too hot or operating
intermittently.
e. Decrease the pressure when using a small tip.
Never leave water
or any,paint in the sprayer overnight to: (1) prevent pump corrosion; 12) to prevent the paint or water from freezingin the pump
andpressure control which can ceuse loss of
pressure, stalling or serious sprayer
damage.
Always use mineralspirits for the final flush.
Relieve pressure.This leaves a protective coating
of mineral spirits in the sprayer.
b. Keep the sprayer in a shaded area when spraying outdoors.
c.
Turn
off the sprayer
and
relieve
pressure
whenever you stop spraying.
4.
5. Cleaning a Clogged Tlp
To reduce the risk of serious bodily injury from
fluid injection or splashing in the eyes or on the
skin, use extremecautionwhencleaningor
changing spray tips. If the spray tip clogs while
spraying, engage the gun safety latch immediately, then followthe procedure in Steps %-%,
For very ehort shutoffperlode. leave the suction
tube in the paint, follow the Pressure Relief Procedure Warning on page 10,end clean the spray
tip.
5. Coil the hose and hang it on the hose rack when
storing it, even for overnight, to help protect the
hose from kinking, abrasion, coupling damage, etc.
HANDLE
NEVER wipe off build up around the spray tip until
pressure isfully relieved and the gun safety latch is
engaged.
~~~
c,
~~
e. Clean the front of the tip frequently during the
First, follow. the Pressure
day'soperation.
Relief Procedure Warning onpage 10. Then
use a solvent-soaked brushto keep paint from
building up and clogging the tip.
b. If the spray tip does clog, release the gun trigger,engage thegunsafety,androtate
the
spray tip handle 1 W . See Fig 6.
BESUREGUN
SAFETY LATCH
IS ENQAQED
c. Disengage the gun safety latch and trigger the
gun into a wastecontainer.Engagethegun
safety latch again.
d.Returnthehandle
to theoriginalposition,
disengage the gunsafetylatch,andresume
spraying.
e. I f rhe tip is still clogged, engage the gun safety
latch,shut off andunplugthesprayer,and
open the pressure
relief
valve
to relieve
pressure. Clean the spray tip.
SHUTDOWN AND CARE
1. Checkthepecklngnutlwet-cup
dally. First
follow the Pressure Relief Procedure Warnlng
on page 10. Be sure the wet-cup is113 full of TSL
at all times to help prevent paint buildup on the
piston rod and premature wear of packings. The
packing nut should be tight enough to stop
leakage, but no tighter. Overtightening may cause
binding and excessive packing wear. U s e a screwdriverand light hammsr to adjustthenut.
See
Fig ?.
2. Clean the fluld fllter often andwheneverthe
sprayer is stored. First follow the Presaure Relief
Procedure Wernlng on page 10. Refer to manual
307-273,supplied, for the cleaning procedure.
3. Uueh the spreyer et the end of each'work day
and fill it with mineral spirits to help prevent pump
comsion and freezing. See "Flushing Guidelines"
on page 12.
307-788
11
FLUSHING GUIDELINES
When to Flush
1. New Sprayer. Your new UltraTM750 Sprayer was
factory testedin lightweight oil which was left in to
protect pumpparts.
Before ualng water-base palnt, flush with mineral
sairits.
followed bv ~ O.~. Dwater,
V
and then e clean
“
water flush.
Before udnn
- oll-base palnt, flush with mineral
spirits only.
2. Changlng Colors. flush witha compatible solvent
such as mineralspirits or water.
3. Changlng from water-base t o oll-base paint.
Flush with soapy water, then mineralspirits.
4. Changlng from oil-bese t o water-basepaint.
flush with mineral spirits. followedby soapy water.
then a clean water flush. .
~~~.
5. Storage.
Water-base pelnt: flush with water. then mineral
spirits and leave the pump, hose and gun with
filled
mineral spirits. Shut off andunplugthesprayer,
o w n the oressure relief valve to relieVBpressure
ahd leave open.
O/l-base paint. flush with mineral spirii. Shut off
andunplugthesprayer,openthepressurerelief
valve to relieve pressure end leave open.
6. Startup after storage.
Before uslng water-base palnf flush out mineral
spirits with soapy water and then e clean water
flush.
When uslng oll-base palnt, flush out the mineral
spirits with the paint to be sprayed andthe sprayer
is ready to use.
How to Rush
1. Follow the Preuure Relief Procedure Werning
on page 2 or 10.
2. Remove the fitter bowl andscreen; see manual
307-273 supplied. Clean the screen separately and
install the bowl without the screen to flush See
Fig 8.
it.
MAINTAIN FIRM
CONTACT BETWEEN
GUN AND CONTAINER
ne 8
3. Close the filter pressure relief valve.
4. Pour one-half gallon (2 liters) of compatible solvent
into a bare metal pail. Put the suction tube in the
pail.
6. Remove the spray tip from the gun.
aide of and aimed into a groundedmetal pail when
6. Disengage the gun safety latch. Point the spray
gun
into s grounded metal waste container and with 8
metal part of the gunfirmly touching the metal container,squeeze the gun trigger. See Fig 9. This
DW@dUrehelm reduce the rl8k Of St.tlC smirking and Splaihing. with the gun triggered,.. turn
the ONlOFF switch to ONand slowly turn the
prsssure adjusting knob clockwise luai untll the
sprayer starts. Keep the gun triggered until clean
solvent comes from the nozzle. Release the trigger
end engage the gun
latch.
saw
7. Check all fluid connections for leaks. If anyleak,
first follow the Preaaure Relief Procedure Warning on page 2 or 10. Now tighten the connections,
start the sprayer, and recheck the connections for
leaks.
8. Remove the euction tube from the pail. Disengage
the gunsafety and triggerthe gunto force solvent
from the hose. Do not let the pump run dry for
more than 50 seconds to avold damaglng the
pump pecklngsl Then turn ONlOFF switch to OFF
and engage the gun safety latch.
9. Unplug the power supply cord. Open the pressure
relief valve and leave open
until you are readyto use
the sprayeragain.Unscrewthe
filter bowl and
reinstall the clean screen. ‘Reinstallthe bowl, hend
tight only.
10. 4f you have flushedwith mineral spirits and aregoing to use e water-basepaint, flush with soapy
water fdlwved by e clean weter flush. Then repeat
Step 1.
TROUBLESHOOTING GUIDE
WARNING
Premure Relief Procedure
To reduce the risk of serious bodily injury,including fluid injection, splashingfluid in the eyes or on the skin, or injury from moving parts or electric shock, alwaysfollow this procedure whenever youshut off the sprayer, when
checking or servicing anypart of thespray system,when installing, cleaning or changing spray
tips, and whenever
you stop spraying.
.1. Engage the gun safety latch.
2. Turn the ON/OFF switch to OFF.
3. Unplug the power supply cord.
4. Disengage the gun safety latch.
6. Hold e metal part of the gun firmly t o the side of a metal pail, and trigger the gun to relieve pressure.
6. Engage the gun safetylatch.
7 . Open the pressure relief valve.
8. Leave the pressure relief velve open until you are ready to spray again.
If you suspecr rhar the spray tip or hoseis complerely dogged, or rhar pressure hasnot been fully relieved after
following the sreps above, VERY SLOWLY loosen the tip guard retaining nut or hose end coupling end relieve
pressure gradually, then loosen completely. Now clear the tip or hose.
PE OF PROBLEM
F
WHAT TO CHECK
If check Is OK, go to next check
WHAT TO DO
When checkle not OK refer to this columl
R WON'T OPERATE
I. Check the pressure control knob setting. The 1. Slowly increase the pressure settingto see if
motor wil not run if it is at the minimum set- the motorstem.
ting (fully counterclockwise).
2. Check for a clogged spray tip. Refer to your
separate gun or tip instruction manual.
1. Check for frozen or hardened paint in the
(39)andlor pressure control bourdon
tube. Using a screwdriver, carefully try to
rotate fan at back of motor by hand.See
page 19.
I
2. Relieve pressure, refer to your separate gun
or tip instructionmanual for tip cleaning.
1. Thaw'. Plug in sprayer and turn on. Slowly
increase pressure sating tosee if motor pump
starts. If it doesn't. replace the displacement
pump packings (see manual 327-7931 andlor
replace the bare pressure control box1301)'.
See page 26.
2. Check displacement pump connecting rod
2. Push pin intoplace and secure with the
pin (20). It must be completely pushedinto
spring retainer.
connecting rod (3) and spring retainer(35)
should be firmly in groove of connecting rod.
See page 28.
..
3. Check for motordamage. Remove drive
housing assembly (2). See page
Try to
rotate fan bv hand.
29.
3. Replace motor(1) if fan won't turn.
T
' haw the sprayer if waterorwater-basedpainthasfrozen
in
When replacingthebarepressurecontrolbox(item
3011.
k, due to exposure to o
lw temperatures, by plecing it in a
removethecircuitbreaker, ON/OFF switch,bridge,circuit
warm area. Do not try to stert thesprayer until it hasthawedboardendelectricelhardwareendreinstallthesepartsinthe
the
bare box.
completely. If thebourdontubewasnotdamagedby
Ifpaint hardened (dried)
in
freezing, the pump should oparam.
the sprayer, the pump packings andlorbare pressure control
must be replaced. See page 26 or manual 307-783.
Troubleshooting continued onpage 14.
..
TYPE OF PROBLEM
WHAT TO CHECK
Ifcheck Is OK, go to next check
WHAT TO DO
When checkIs not OK refer to thin colurn
~ _ _ _ ~
Basic Electrical Problems
reset. If
1. Check sprayer circuit breaker (309)button t c
be sure it has not popped up.
1. Depress circuk breaker bunon to
2. Check electrical supply with volt meter.
2. Reset building circuk breaker; replace
building fuse. Try another electrical outlet.
Meter should read 105 to 125 VAC.
circuit breaker continues to open,
trical Shon", page 16.
888
"Elec.
3. Check extension cord for visible damage.
Use a wk meter or test lamp at extension
3. Replace extension cord.
4. Check sprayer power supply cord (311)for
visible damage such as broken insulation or
wires.
4. Replace power supply cord. See page 23.
5. Check motor brush leads, terminals and
brush length. Brush length should be 1IT'.
See page 22.
5. Tighten terminal screws; replace brushes.
See page 22.
cord outlet to check.
-N
IOTOR WONT OPERATE
D'lagnosing circuit board indiixtor lamp. The normal
Umdtion Is red lamp on,
cllear lamp on when board is
I(dling pump to run.
kollow Pressure Relief ProRemove gun from
hlose. Remove pressure control cover and check for f a d
Umdkion of circuit board
laImps.
1. Check leads from bridge (308)to motor to b 1. Replace any lwse terminals and crimp to
sure they are securely fastened and properly
leads. Be sure male terminal blades are
mated.
straight and firmiy connected to mating part.
2. Check G1 end 62 connections betwaen circuit board (23)end bridge C3lS) for damage
or l o r n terminals.
2. Clean circuit board male terminals. Replace
o
l ose or damaged terminals. Securely recon-
3. Check for loose motor brush lead connec-
3. Tighten terminal screws. Replace brushes if
leads ere damaged. See page 22.
Updure.
Condition A both lamps on;
P'ump won't operate and
ITlotor is not running
tions end terminals. See page
22.
4. Replace brushes. See page
5. Check for broken or misaligned motor brush
springs. Rolled ponion of spring must rest
squarely on top of brush. See page 22.
6. Replace spring if broken. Realign spring with
6. Check motor brushes for binding in brush
8. Clean brush holders. Remove carbon with
Small cleaning brush. Align brush lead with
slot in brush holder to assure free vertical
brush movement.
7. Check motor armature commutator for bum
7. Remove motor and have motor shop resurface commutator if passible. Sea page 30.
spots, gouges end extreme roughness.
Remove motor cover and brush inspection
plates to check. See page 22.
8. Check motor armature for shorts using armature tester (growler) or perform spin test.
See page 19.
9. Check bridge (308)by substituting with e
good bridge or performing bridge test. See
paw XI.
CAUTION: Do not perform this check until
errnmure is determined to be good. A bad
armature wil immediately burn out a good
bridge.
(3ondtion
B
81oth lamps off
14
.. . ,... .
. ..
brush. See page 22.
B. Replace motor. See page
9. Replace bridge. See page 24.
I. Depress circuit breaker buttori,to reset. If cic.
CUR breaker continuesto open, 888 "Electrical Short", page 18.
2. Check sprayer power supply cord (311).
Disconnect TP6 female end TP1 female and
connect volt meter to these leads. Plug in
sprayer. Meter should read 105 to 125 VAC.
Unplug sprayer. Reconnect TPl.
1. Replace power supply cord. See page
3. Check ONlOFF switch (3W).Disconnect TP:
3. Replace ON/OFF switch. See page 23.
Troubleshooting
307-788
30.
1. Check circuk breaker W 9 ) button to be sure
it has not popped up.
and connect w k mater to TP6 female and
TP2 male. Plug In sprayer and turn on. Metel
should read 105 to 125 VAC. Tum off end
unplug sprayer. Reconnect TP2.
-
22.
4. Check brush length which should be l/Z".
See page 22.
NOTE also that the brushes do not wear at
the seme rate on both sides of the motor.
holders. See page 22.
-
nect leads.
23.
YPE OF PROBLEM
WHAT TO DO
WHAT TO CHECK
When check b not OK refer to this columl
If check Is OK. ao t o next check
~~~~~~~~
mdtion B
ontinuedl
~
,
Check jumper wire (306).Disconnect TP3
and connect volt meter to TP6 female and
TP3 female. Plug in sprayer and turn on.
Meter should read 105 to 125 VAC. Turn off
and unplug sprayer. Reconnect TP3.
4. Replace jumper wire. See page 26.
,
Check circuit breaker 1309). Connect volt
meter to TP6 female and TP4. Plug in
sprayer and turn on. Meter should read 106
to 125 VAC. Turn off end unplug sprayer.
5.
,
Check motor thermal cutout switch.
Connect volt meter to TP6 female and TP9
female. Plug in and turn on sprayer. Meter
should read 1 0 5 to 125 VAC. Turn off and
unplug sprayer.
6. Allow motor to cool. Correct cause of overheating. If switch remains open after motor
cools. check continuity belwwn TWfemale
and TPlO with ohmmeter. If open, replace
motor.
.
Check microswitch 13021. ReconnectTP6
connectors. Connect volt meter to TP15
male and TP4. Mater should read 60-125
VAC.
7. . Clean microswitch male terminals. Replace
loose or damaged terminals. Securely recon.
nect leads.
.
Visuallyinspect microswitch 1302) button.
Adjustment stud 10)should not depress the
micmgwitch button when fluid pressure is
zero. Manually check by depressing button
with small screwdriver; an audible click indicates microswitch is in normal position.
6. Microswitch is faulty. Return sprayer for
.
Replace circuit breaker. See page 24.
repair.
Check microswitch 1302) continuity with ohm 9. Microswitch is faulty. Return sprayer for
repair.
meter. Be sura sprayer is unplugged1 Meter
should read zero ohms with no fluid pregsurf
in the sprayer.
0. Check a11 terminals for damage or loose fit.
Reconnect TP6 connectors.
10. Replace damaged terminals and reconnect
securely.
1. Check circuit board (23) by substituting with 11. Replace circuit board. See page 25.
a good board. See page
ondnion C
sd lamp on, clear lamp
nplug sprayer1
25.
1. Check circuit board (23) by removing from
of
1. Replace circuit board. See page
25.
box without disconnecting wires; see page
25 for removal procedure.
WARNING: Removing the circuit board
while still wired over-rides the optical detector which could cause the sprayer to overpressurize, ifthe microswitch does not func
tion properly. Turn the sprayer on ONLY
long enough to check lamp condnion, then
shut off immediately.
WARNING: To reduce the risk of electric
shock, handle board by edges onlyl Do not
allow any metal objects to come in contact
with the boardl
Plug in and turn on sprayer. Clear lamp
removing the circuit
should be on now
board over-rides the optical detector. Turn
off and unplug sprayer.
-
2. Check bourdon tube flagand detector posi-
tion. Reinstall circuit board (see page 25).
Turn pressure setting to maximum; flag
should extend less than half way into optic1
detector slot from the bottom.
2. Calibrate pressure control to 888 if that corrects problem. See page 27.
If not, replace bare pressure control box
I301 P. See page 28.
VIEW OF OPTICAL DETECTOR AND FLAG
'Wen wbcingthe bare pra
drwh board and ekniwl h~
I control box (301I, remove thicircun breaker,bridge,
mra and relnmsll in the new bare box.
Troubleshooting continued
YPE OF PROBLEM
WHAT TO CHECK
If check la OK, go to nextcheck
WHAT TO DO
When checkI8 not OK refer to this colum~
3W OUTPUT
1. Check for worn spray tip.
1. Follow Pressure Rellef Procedure WernIng then replace tip. See your saparste gun
or tip manual.
2. Check to see that pump does not continue
to stroke when gun trig or is released. Plug
2. Service pump. See manual 307-793.
B,
in and turn onsprayer. rime with paint.
Trigger gun momentarily, then r e 1 8 8 8 8 and
engage safety latch. Relieve pressure, turn
off and unplug sprayer.
3. Check electrical supply with volt meter.
Meter should read 105 to 126 VAC.
3. Reset building circuit breaker;replace
building fuse. Repair electrical outlet or try
another outlet.
4. Check extension cord size and length; must 4. Replace with a correct, grounded axtensign
be at least 12 gauge wire and no longer than
Cord.
' 1
60 ft (15.2 ml.
6. Check G1 end GZ leads fmm bridge (308)to
circuit board (23)for damage or o
l ose wirea
or connectors. Refer to page
5. Clean circult board male terminals. Replace
loose or defective lead terminals. Securely
reconnect lead terminals to board.
6. Check stall pressure. Refer to Calibration
Procedure on page27.
6. Calibrate pressure control. See page 2
7.
26.
7. Check bridge (308)
+
-
and
leadsand terminals to motor. Inspect wiring insularion
and terminals for signs of overheating. See
page XI.
6. Check for 10088 motor brush leads and terminals. See page 22.
7. Be sure male terminal blades are centered
and firmly connected to female terminals.
Replace any loose terminal or damaged wiring. Securely reconnectw h to bridge.
8. lighten terminal screws. Replace brushes if
leads are damaged. See page 22.
9. Check for worn motor brushes which should 9. Replace brushes. See page
be l/Z" minimum length. See page 22.
10.Check for broken and misaligned motor
brush springs. Rolled portion of spring must
rest squarely on top of brush.
11. Check motor brushes for binding in brush
holders. See page 22.
22.
10.Replace spring if broken. Realign spring with
brush. See pege
22.
11. Clean brush holders, remove carbon dust
with small cleaning brush. Align brush lead
with dot In brush holder to assure free vertical brush movement.
12.Check circuit board (23)by substituting with 12.Replace circuit board. See page
e good circuit board. See page 25.
25.
13. Check motor armature for shorts by usingen 13. Replace motor. See page 3 0 .
armature tester Igmwler) or perform spin
test.See page 19.
14.Check bridge 13081 by substituting with e
14. Replace bridge. See page 24.
good bridge or by performing the bridge
test. See page 20.
CAUTION: Do not perform this check until
armature is determined to be good. A bad
armature will immediately bum out a good
bridge.
0 OUTPUT
"or runs and pump
1. Check paint suppiy.
1. Refill and reprlme pump.
2. Check for dogged intake strainer. See page
2. Remove and clean, then reinstail.
3. Check for lome Suction tube or fittings. See
3. Tighten; usa thread sealant or sealing tape
29.
Daoa 29.
on threads if necessary.
Troubleshooting continuedon next page.
WHAT TO CHECK
If check la OK, 80 to nextcheck
4. Check to see if intake valve ball and piston
bal are seating properly. See manual
307-793.
6. Check for leaking around throat packing nui
which may indicate worn or damaged packings.See manual 307-743.
~~~~
~~
~
~
~
WHAT TO DO
When check Is not OK refer to thla column
1. Remove intake valve and clean. Check balls
and seats for nicks; replace if necessary. See
manual 307-793.
5. Replace packlngs. See manual 307-793.Also
check piston valve sent for hardened paint 01
nicks and replace if necessary.
~~~~~
~
~~~
1. Check displecement pump connecting rod
pin. See page 28.
I. Replace pin if missing. Be sure retainer
spring is fully in groove all around wnnecting
rod.
See page 28.
. .
2. Check wnnecting rod assembly for damage
see page 28.
i. Replace connecting rod assembly. See page
3. Be sura crank in drive housing rotates; plug
in sprayer and turn on momentarily to checl
Turn off and unplug sprayer. See page 29.
I. Check drive housing assembly for damage
1. Be sure both G1 and 6 2 leads from bridge
(3081 to circuit board (23)are firmly
connected. See page 25.
I. Reconnect securely. See page 24 and 25.
2. Check stal pressure. Refer to Calibration
procedure on page 7.7.
!. Calibrate pressure control. See page 7.7.
3. Check bourdon tube flag and detector position. Turn pressure setting to maximum; fla(
should not drag or bind In optical detector
slot of circuit board.
1. Carefully bend flag into alignment with
detector slot to see if that corrects problem.
If not, replace bare pressure control
assembly (301)’. Calibrate pressurecontrol
after reassemblv.
,-CIRCUIT
It”
BOARD
28.
and replace if necessary. See page
29.
. .
FIAO
VIEWOF OPTICAL DETECTOR AND FLAG
4. Check circuk board (23) by substituting w i t 1
a good board. See page
25.
4. Replace circuit board. See page
25.
5. Check LOW OUTPUT section on page 16.
1. Decrease pressure setting or increase tip
8129.
2. Check to see if ambient temperature where
2. Move sprayer to shaded, cooler area if
possible.
3. Check to see if sprayer has been left in a
3. Turn off sprayer whenever you stop spraying
sprayer is located is more than W0F lZ!°C)
or if sprayer is located in direct sun.
stalled wndition (sprayer turned on,
pressurired, but not operating) for long
oeriods of time.
.When replacing the bare pressure wmml box i3011, m o v e the
drcuk
bridge, circuk board, andeiacMcal hardware and
minMll in the new bare box.
board.
for a while and relieve fluid pressure.
Troubleshooting continued on next page.
YPE OF PROBLEM
WHAT TO CHECK
If check Is OK, go t o next check
WHAT TO DO
When check Is not OK refer to this columl
~~~
LECTRICAL SHORT
uiiding drcuit breaker open1
s lwon 81 sprayer w i t c h Is
1 Repair or replace any damaged wiring or ter.
minals. Securely m n n e c t ell w'ra.
sulation, end all terminals for loose fit or
damage. Be sure to check wires between
pressure control and motor which are encased in conduit (12). See.page29.
lmed on.
CAUTION
ny short in any part of th
notor power drcuit. which i
mnected to the output sid
I the bridge, w i l l cause th
ridge to bum out lmmediatt
'. Correctlydiagnose .an
lpalr all shorts before checl
Ig end replacing bridge
.
1. Check all electricalwiring for damaged in-
.
2. Check for missing Inspection plate gasket
(see page 221, bent terminal forks or other
metal to metal contact points which could
cause a short.
2, Correct faulty conditions.
.
3. Check motor armature for shorn by using an 3, Replace motor. See page 30.
'
e m t u r e tester (growler) or perform spin
tat. See page 19. Inspect windingsfor
bums.
.
4. Check bridge ~ 3 0 8 by
1 substituting with a
4, Replace bridge. See page 24.
good bridge or by performing bridgetat.
See page 20.
CAUTION: Do not perform this check until
annature Is determined to be good. A bad
armature will'immediately bum out a good
bridge.
,uildlng drcuit breaker open1
B won na sprayer is plugged
It0 outlet and sprayer is N O
rmed on.
1. Check 'Basic Electrical Problems' on page 14.
?3.
2. Check ONlOFF switch (303)See p a p
2. Replace ONlOFF switch. See page 2
3.
Be sura the sprayer is unplugged1 Dwonnect
wires from switch and check switch with
ohm meter. The ohm meter should read infinin, with the ONlOFF switch OFF, and zaro
with the switch ON.
CAUTION: A short in the motor'circuit will
bum the bridge
out immediately, which in turn
usually causea the ONlOFF switch to fail In the
dosed mode.
~
~~
'prayer circuit breaker opens 1. Check electrical supply with volt meter.
b r sprayer operatee for on)
Meter should read 105 to 125 VAC.
to 10 minutes.
2. Check tightness of pump packing nut. Gvertightening nut tightens packings on rod,
renricts pump action, and damages
packings. See page 28.
1. If voltage is too high, do not operate sprayel
until corrected.
,2. Loosen packing nut. Chkk for leaking
around throat. Replace pump packings, if
necessary. See manual 307-793.
3. Check s t a l l pressure. Remove the plug from
the top of the fluid filter, and Install a 5oa)
psi (350bar) fluid-filled pressure gauge. See
page
Plug in end turn on sprayer. Slowly
increase pressure sening to maximum. Pump,'
should stall at 2
SO-mpi kW-207 bar).
Tum off end unplug sprayer.
3. Calibrate pressure control. See page
27.
27.
1. .After determining that there hr no short in
system, reset circuit breaker button.
4. If circuit breaker continua to open (button
pops up), replace the circuit breaker. See
page 24.
\
the risk of a fluid injection injury, injuryfmm moving parts, or electric shock. Unplug the sprayer/
For checking ennature, motor winding and brushelectrical continuity.
*tup
Remove the drive housing from the sprayerasdescribed in "DriveHousingReplacement",Steps
1-6,
page 29.
Remove the pressure control coverend screws, the
motor cover, the fancover(FI,andtheinspection
covers (J). See Fig 10.
Disconnect the two leads from the motor to the bridge
l308). see Fig 11.
Armature Short Circuit Test
Quickly turn the motor fan by hand. /f fhem ere no
shorts, the motor will coast two or three revolutions
before coming to s complete stop.
If the motordoes not spin freely and resists rotation,
the
armature is shorted and the motor must be replaced.
See page 30.
Armature, Brushes, endMotor
Wring Open
Circuit Test (Continuity)
Connect the two black motor leads togetherwith a teat
lead.
Turn the motor fan by hand et about two revolutions
per second.
If there is uneven or no turning resistance, check the
following: e) brokenbrush springs; b) brokenbrush
leads; c) loose brush terminalscrews; d) wornbrushes;
e) broken motor leads; f) loose motor lead terminals.
Repair parts as needed. See page 22.
If there is still uneven or no turning resistance, replace
the motor. See page 30.
309
308
ne 11
BRIDGE TEST
Remove the bridge from the pressure control box and
perform this test to determine ifthe bridgeis functional.
See Bridge Rectlfler Raplacement. page 24. Use a
continuity tester, such a8 multi-meter set on the X1
ohmscale( Q ).
Eight individual checks, or tests. must be performed. If
the bridge fails even one test,it must be replaced.
Fig l2shows the positbnof the wires on the bridge. Using the chart at the right, connectthe meter wiresas indicated by theblack dots foreach teat, then check the
continuity.
In Tests 1, 2 and 3, there should be NO continuity.
In Tests 4.6 and 6, connect the+ and meter wiresas
indicated, check continuity, then w i t c h the meter wire
connections and check continuity again. You should
get NO continuity one. way, and YES,wntinuity the
other way.
In Tests 7 and 0. connect the meterwires as indicated
by the black dots. Touchthe indicated " G wire to one
meter wire, and then to the other. You should get NO
continuity one way, and YES continuity the other way.
-
Rg 12
REPAIR SECTION INDEX
Repair
Procedure
Page
21
General
................................... 22
Motor Brush Replacement
Power Supply Cord Replacement
23
ONIOFF Switch Replacement
23
Bridge Rectifier Replacement
24
24
Circuit Breaker Replacement
Circuit Board Replacement
25
Pressure Control Replacement
28
Calibration
Stall Pressure
27
Bearing Housingb Connecting Rod Replacement
Drive Housing Replacement
29
Motor Replacement
30
Parts Lists 8 Drawings
32, 33
Sprayer
Pressure Control
34
Circuit Board
35
How ToOrder ReDlacement Parts
33
The following tools are needed when repairing this
sprayer.
.........................................
Phillips screwdriver
..........................
Small flatblada screwdriver
..............................
Needle nose pliers
...............................
Plastic mallet
................................
Adjustable wrench
..................................
2" adjustable, open-end wrench
.............................
Torque wrench
....................................
.....a 114, hex key wrench
3/16" hex key wrench
.................................
518' socket wrench
...........................................
318" open end wrench
112" open end wrench
..................................................
3/4" open end wrench
............................................
710' open end wrench
................................................
High quality motor oil
.....................
Bearing grease
NOTE:
Sea separate manual 307-793
ment pump repair.
for displaceFor calibration procedure only;
3/8" ignition wrench
0.015" spray tip
High pressure, oil-filled test gauge, Part No. 102814
5 gallon pail
Clean water
Mineral spirits
NEW 3000 psi (210 bar) high pressure spray hose,
Part No. 214-915.
GENERAL REPAIR NOTES
Beforerepairingany part of the sprayer,read the following general repair notes and the repair procedure. Be
sure you have the necessary tools and parts available.
1. When disconnecting wires in the pressure control
assembly, use needle nose pliers
to separete meting
connectors.
When reconnectingthe wires, be surethe flat blade
of the insulated male connector is centered in the
wrap-around blade of the female connector when
the connection is made.
4. Testyourrepairbeforeregularoperation
of the
sprayer to be sure the problem is corrected.
If the sprayer doesnot operate properly, review the
repair procedure again
to verify that everything was
dona correctly. If necessary, refer t o the
Troubleshooting Guide, pages 13-20, to help ident.Ry other possible problems and solutions.
WARNING
To reducetherisk of seriousbodilyinjury, including electric shock, DO NOTtouch any moving
parts or electrical partswith your fingem ora tool
while inspecting the repair.
Shut off the sprayer and unplugit as soon as you
complete the inspection.
Reinstall all covers, gaskets, screws and washers
before operating the sprayer.
CAUTION
tion, be sure to properly mate connectors, end
nevar pull on a wire to disconnect Pulling on a
wire could loosenthe connector from the wire.
it.
2.
Route
wires
in the pressure control assembly
carefully through thelegs of the U-shaped bourdon
tube, where appropriate, to avoid interfering with
the bourdontube whichmoves asthe pressure setting changes and to avoid pinching the wires between the pressure control box and cover.
CAUTION
Do not runthe sprayer dry for morethan 30
seconds to avoid damaging the pump packings.
5.
CAUTION
Improper wire routing can result in poor sprayer
performance or damage to the pressure control.
3.Keep all screwa,nuts,washers,gaskets,andelectrical fittings removedduringrepairprocedures.
These parts are not normally providedwith replacement assemblies.
-
Reinstall the motor cover before regular operation
of the sprayer and replace it if it is damaged. The
cover directs cooling air around the motor to help
prevent overheating.It can also help prevent burns,
fire or explosion; see the WARNING, below.
WARNING
Duringoperation.the motor becomesvery hot
and could burn your skin if touched. Flammable
materialsspilledonthehot,bare
motorcould
cause a fire or explosion. Alweys have the motor
cover in place during regular operation to reduce
the risk of burns, fire or explosion.
MOTOR BRUSH REPLACEMENT
NOTE:
Repiace the brusheswhentheyhave
worn
to no leas than 1/2 in. See STEP 1, Fig 14.
Note that the brushes weer dMerently on
eachside of the motor.Brush Repair Kit
220-349is available.
Iw
Before doingthis procedure, follow thePressure
Relief ProcedureWarning on page 13to reduce
the risk of a fluid injection injury, injury from moving part8 or electric shock. Unplug the sprayed
1. Remove the motor cover (14). See Fig 13.
2. Remove the 8cw.w (HI,inspection covers (J) and
gaskets (K) on each side of the motor. See Fig 13.
3. Push down and then in on the spring clip, and then
pull the clip out of thebrush holder. Referto STEP
3, Fig 14. Keep the spring clip.
4. Loosen the brush lead terminal screw and remove
the lead.
6. Remove and discard the brush.
6. Inspect the commutator for excessive pitting, burning orgouging.
NOTE:
Fln 13
v
A black colorpn the commutator is normal.
Have the commutator
resurfaced
by
a
qualiied motor repairshop if the brushes
seem to be wearing too fast.
7. Place a new brushin the holder 80 the lead is at the
top of the holder. Piace the brush lead terminal on
the terminal screw so the terminal is parallel with
the brush holder. Tighten the terminal screw. See
STEP 1, Fig 14.
8. With the spring roll touching the brush, push the
forked end of the spring clip into the brush holder.
See STEP 3, Fig 14. When the fork passes through
the enki of the holder, push
the clip up or down
until
the fork hooks the end of the holder. See STEP 3,
Fig 14.
8. Position the brush leadas shown in STEP 3, Fig 14.
Be sure the brush lead doesnot touch any part of
the armature or motor housing.
10. Test the brushes:
a. Wflh
the
ON/OFF switch OFF, turn the
pressure control knob all the way counterclockwise to minimum pressure. Plugin the sprayer.
b. Turn the ONlOFF switch ON and slowly increase the pressureuntil the motor comes
up to
full speed.
c. inspect the brush and commutator contact
area
for excessive arcing. Arcs shouldnot "trail" or
circle around the commutator surface.
WARNING
Do not touch thebrushes, leads, springs or brush
holders while the sprayer is plu ged in to reduce
the risk of electric shock and
88 ous bodily injury.
/I / .
STEP 3
-F
o*m u n hook
holder when
ln.ulllng
puwh downandin.
then pull out
eprlns dlp
.
4
.
P
307-786
.
I
11. Reinstall the brush inspectioncovers, gaskets, and
screws.Reinstallthemotorcover.
8cw.w and
washers.
POWER SUPPLY CORD REPLACEMENT
1. Remove the pressure control cover and screws.
2. Disconnect the powersupplycordlead
from the
ON/OFF switch (303). the white wire going to the
bridge (308). end the green wire to the grounding
screw (343)and lockwasher (327).See Fig 15.
3. Loosen the strain relief bushing (328).Remove the
power supply cord(31 ).
1
4. Install
the
new
cord
inthe
reverse
order
of
disassembly.
5. Reinstall the cover and screws.
Fig 16
ON/OFF SWITCH REPLACEMENT
1. Remove the pressure control cover and screws.
2. Use a needlenosepliers to disconnect the upper
terminal wirefrom the microswitch(302)for ease in
removing the ON/OFF switch cK)3).Refer to Fig
15.
3. USe thepliers to disconnectthe two blackwires
from the ONlOFF switch(303).Refer to Fig 16.
4. Use e 5/8" socket wrench to loosenandremove
the nut and rubber boot (304)from the top of the
pressure control box.Remove the switch guard
(306).See Fig 16.
5. Remove the ONlOFF switch.
6. Install the new switch 80 the internal tabof the antirotetion ring (W) engages with the vertical groove
in the thmda of the switch, end the external tab
engages with the blind hole
(Dl of the pressure control box. See Fig 16.
7. Install the &itch guard (305). aligning the internal
tab with the groove in the threads.
See
Fig
16.
8. Install the nut end rubber boot (304)and tighten.
See Fig 16.
9. Reconnect the wires to the ONlOFF switch (303)
and reconnect the wire to the microswitch (302).
Refer to Fig 15.
10. Reinstall the pressurecontrol cover and screws.
CONTROL BOX
Fig 16
307-786
23
BRIDGE RECTIFIER REPLACEMENT(Refer to Fig 17)
W
A R N I N G Before doing this procedure, follow the Preeeure
Relief Procedure Warnlng on
page 13 to reduce
the risk of a fluid injection injury, injuryfrom mov-
6. Makesure the bridge is flush with the side of the box
and tighten the sc&
securely.
7. Connect all wires. Carefully route the wires.
CAUTION
Be sure the flat blade of the insulated male con-
2. Disconnect all wires from the bridge (308)at the appropriate terminals.
3. Outaide the pressure
control box on the right side ere
two acrews (331). Loosen, but don'tremovethe
screw nearthe back of the control box. Then loosen
and remove the,front screw. Slide the bridge out.
4. Slide the new bridge (308)into the box being sure
the lockwesher G 3 3 ) on the rear screw (331) is IN
FRONT of the bridge.Refer to theDetail in Fig 17.
6. Install the front screw, lockwasher and nut (332).
I
female connectorwhentheconnections
are
made.
Improper
connections
may
cause the
mraver to malfunction.
I
8. Reinstall the pressure control coverandscrews.
NOTE:
The most common cause of bridge failure is
a faulty motor. Check the motorbefore
the bridge to prevent
damaging
new
the
bridge.
IC
(333) must
be
in front of the
replacing
The
lockwashers
bridge to avoid
overheating
which will result in
bridge failure. Refer to the Deteil in Fig 17.
Ug 17
CIRCUIT BREAKER REPLACEMENT (See Fig 17)
6. Push down on the topof the circuit breaker an'd pull
it out of the box.
6. Install the new circuit breaker in thereverse order of
disassembly.
7. Reinstall the pressurecontrol cover and screws.
1. Remove the
pressure control cover
and
screws.
2. Use a small screwdriverto slide the terminal adapter
off the circuit breaker
terminal.
bourdon
the
tube,
3. Disconnect the singleblackwire
from thecircuit
breaker (309)to the ONlOFF switch(303).
4. Use a 6/6" socket wrenchto loosen thenut and boot
(3101 on the circuit breaker button.
24
307-788
I-CAUTION
I
Do not ellow thecircuit breaker contacts to touch
which will cavae
short.
a
Tiahten the circuit breaker nut firmlv to nrevent
the circuit breaker from turning.
II
. .
~
~~~
I
~
CIRCUIT BOARD REPLACEMENT
ARNING
Before doing this procedure, follow the Pressure
Relief Procedure Warning on page 13 to reduce
the risk of a fluid injection injury, injury from mov1. Remove the pressure control cover and screws.
2. Turn the pressure control knob all the way counterclockwise to the minimum settingto release spring
tension onlhe circuit board (23). Also check to be
sure only threeor fourthreads of the pressure control knobshaft are exposed below the pressure adjustment nut (SI.Back down the nut, if necessary.
see Fig 18.
r
CAUTION
To reduce the risk of malfunction, be sure the flat
blade of the insulated male connector is centered
exactly in the wrap-around blade of the female
connector when connectionsere made. Route ell
wires carefully to avoid interference with the circuit board,bourdon tube andpressure control
cover.
6. Perform the Stall Pressure Calibration on page
27.
I
c
A
Step 2 is essential to reduce the riskof damaging
the circuit board while removing or installingit.
~~
3. Disconnect ALL wires from the board, including the
two heavy black wires. Refer to Fig 19. Pay close
anention to where connections are made.
4. To removetheboard from the box, pull out the
black plastic-tipped pin (330). Push the bonom of
the circuit board toward the wall of the box end
carefully slide the board out.
5. Install the board in the box at the same angle as it
was removed. Reconnect the wires as indicated in
Fig 19. Ease the pin (330)into the retainer.
CIRCUIT BOARD 218-405 A, 6 Wires
Fig 18
PRESSURE CONTROL REPLACEMENT(Refer to Fig 20)
1. Disconnect the main fluid how (90) and the secondary fluid how, if used, from thesprayer.
2. Disconnect the fluid hose (47) from betweenthe
displacement pump outlet nipple (48) and pressure
control inlet nipple (344).
3. Loosen the filter bracket nut (28)end washer (13)
using e 314" open end wrench.
4. Hold the pressure control adapter (341) firmly with
e 3/4" open end wrench. Use an adjustable wrench
to loosen the swivel union (81, then remove the
fluid
filter (48).
6. Remove the pressure control cover and screws (36,
151, and disconnect the fourmotor k8ds at the e p
propriste terminals.
6. Refer to Circuit Board Replacement on
page 22,
remove the circuit board and retain.
7. Remove the conduit (22).
8. Use a 112" open end wrenchto loosen and remove
the pressure control mounting screws (44)located
@low the pressure control box. Remove the box.
9. Installthe new pressure control assembly in the
reverse order of disassembly. Be sure to reinstall
the conduit 8 8 8 1 (!%not shown) aroundthe wires in
the conduit connector (345)to prevent motor contamination from entering the control box.
-CAUTION
I
Do not allow the adapter 1341) to tum while installino the new oresaure control assembly. Tuming it"& damage the sensitivebourdontube.
Hold the adapter firmly with a 3/4" openend
wrench while screwing on the swivel union (E).
I
I
I
10. Perform the pressure control calibration procedure
on page 27 before regular operationof the spreyer.
~____
STALL PRESSURE CALIBRATION
USE EXTREME CAUTION WHENPERFORMING THIS CALIBRATIONPROCEDURE to reduce theriskofa
fluid injection injury or other serious bodily injury which can result from splashing, component rupture, electric
shock, fire, explosion, or moving parts.
This proceduresets the sprayer to 3OOO psi (207 bar)
NEVER attempt to increase thefluid outlet pressure
MAXIMUM WORKING PRESSURE. This procedure
by performing this calibration in anyotherway.
must be performed whenever a new or used circuit
NEVER
EXCEED
3OOO psi (207 barl MAXIMUM
WORKINGPRESSURE.Normaloperation
of the
board, or pressure control assembly is removed and
sprayer at higher pressures could result in comporeinstalled or replaced, to be sure the sprayer is pronent rupture, fire or explosion.
perly calibrated.
Impropercalibrationcan cause the sprayer to over-AVOIDtouchingthewires
in thepressure control
pressurize and result in component rupture, fire or
assembly with your fingers or tools when the
control
explosion. It mayalsopreventthesprayer
from ob-boxcoverisremoved
to reducetherisk of electric
taining the maximum
working
pressure
whichwould
shock.
result in poor sprayer performance.
Callbration Setup (See Fig 21 end Fig 2 2 1
1. Follow the Pressure Rellef Procedure
Warnlng on
page 13. Remove the spray hose and gun. Install a
0.015 spray tip in the gun. Connect the gun to the
new test hose and connect the hoseto the sprayer
outlet.
2. Remove the pressure control screws and cover.
3. Remove the plug from the top of the fluid filter, and
install the test gauge (Wl.
4. Place the pump suction tube in a 5 gallon pail of
clean water.
5. Be sure the gun safety latch is engaged.
6. Use e 3/8" ignition wrench to turn the pressure adjustment nut (SI counterclockwiseabout two full
turns. See Fig
7. With the pressure control knobat the minimum setting, turn the sprayer switch ON.
. ..
..,. . ..
>.: .,
22.
THE SPRAYER SHOULD NOT STARTI
If if does ma, shut the sprayer switch OFF,
disengage'the gun safety latch, trigger the
gun intoa
grounded waste container until pressure is relieved.
Engage the gun safety latch. Turn the pressure adjustment nut (SI a little further counterclockwise.
Turn the sprayer on to be sure it does nor start.
8. Slowly turn the pressure control knob clockwise to
the maximum setting and hold it there. Use a 3/8"
ignition wrench to slowly turn the pressure adjustment nut IS1 clockwise until the test gauge reads
EXACTLY 3OOO psi (210 barl.
9. The calibration procedure is now completed.
Follow the Pressure Relief ProcedureWarnlng
CAUTION
Toprevenf pump corrosion, flush the water
out of
the pump, hose and gun with mineral spirits. Be
sure to close the drain valve, first. Use the lowest
pressure necessary to flush. Follow the Pressure
Relief Procedure Warning on page 13. Leave
the mineral spirits in the pump to protect it until
you are aready to spray again.
Fig 22
307-788
w
BEARING HOUSING B CONNECTING ROD REPLACEMENT (See Fig 23 and 24)
1. Stop the sprayer at the bottom of its stroke to get
the crank (E) in its lowest position. If the crank (E)
mustbeloweredmanually,carefullyrotate
the
blades of the fanwith a screwdriver.
2. Remove the front cwer and screw (31, 32).
3.+Unscrewthe sukion tube 1 4 2 ) from thepump,
holding a wrenchon thepump intake valveto keep
the pump fromloosening.
4. Disconnect the pump outlethose (47) from the
displacement pump outlet nipple (461.
5. Use a screwdriver to push aside the ratainin spring
(35)at the top of the pump. Push the pin
out
the mar.
6. L0ose.n the jam nut (36)with an adjustable wrench.
Unscrew and remove the displacement pump.
7. Use a 3 / 1 6 hex key wrench to remove the four
screws (33)and lockwashera (491 from the bearing
housing.
8. Lightly tap the lower rear of the bearing housing
(27)with e plastic malletto loosen it from the drive
housing.Then pull thebearinghousingandthe
connecting rod assembly (29)straight off the drive
housing.
9. Inspect the crank(E) for excessive wear and replace
parts as needed.
10. Evenly lubricate the inside of the bronze bearingin
the bearinghousing with highqualitymotoroil.
Liberally pack the roller bearing in the connecting
rod assembly 1291 with bearing grease.
720)
.
11. Assemble the connecting rod (29) andbearing
housing (271.
12. Clean the mating surfaces of the bearing and drive
housings.
13. Align the connecting rod with the crank (E) and
carefully align the locating pins
in the drive housing
with the holes in the front cover 131). Push the
bearing housingonto the drive housing tap
or it into
place with a plastic mallet.
24
WARNING
spring ( 3 6 1 ia firmly in the
groove of the connecting rod,all the w a y around,
to prevent the pin (20) from working looae due to
vibration. See Fig 24.
14. Install the screws (33) and lockwashera (491 on the
bearing housing andtighten evenly.
15. Screwthedieplacement pump about 3/4 of the
way into the bearing housing(27). Hold the pin (201
up to the pin hole in the connecting rod assembly
(29) and continue screwing in the pump until the
pin slides easily into the hole. Back off the pump
until the top threads of the pump cylinder areflush
with the face of the bearing housing and theoutlet
nipple 1481 is facing back. Push the retaining spring
1 3 5 ) into the groove all the
way around the connecting rod. lighten the locknut (38) very tight-about
76-65 ft-lb (102-115 N d - w i t h a 2 in. open end
wrench and a light hammer. See Fig 24.
28 307-788
tf the pin works loose, it or other partscould break
off due to the forceof the pumping action.These
parts could be projected through the air and result
in serious bodily injury or property damage. including damage to the pump, connecting-kid or
bearing housing.
16. Reinstallthe front cover and screws(31,321. Reconnect the auction tube (42)and pump outlet hose
(471.
. . ..
DRIVE HOUSING REPLACEMENT(See Fig 251
CAUTION
gear cluster (91 to fall when
removing the drivehousing(18).
It is eesity
damaged if dropped. The gear mey stay engaged
in either the front end bell or the drive housing.
Rellef Procedure Warning on
page 13to reduce
the riskof a fluid injection injury, injuryfrom moving parts or electric shock. Unplug the sprayer1
NOTE:
1. Remove the front cover and screws (31, 321.
2. Disconnectthe pump outlet hose(471 from the
displacement pump outlet nipple (461.
3. U s e a 3/16 in. hex key wrench to remove the four
screws (331 and lockwashers (491 from the bearing
housing.
4. Lightly tap the lower rear of the bearing housing
(271 with e plastic mallatto loosen it from the drive
housing. Then pull the bearing housing and connecting rodassembly straight off the drive housing.
5. Use a 1/4 in. hex key wrench to remove the two
screws (51I and lockwashers(631 from the recess of
the drivehousingand the two screws 1301 and
lockwashers (63)from the rear of the motor front
end bell (lbl.
6. Lightly tap the drive housingwith e plastic melletto
loosen it from thefront end bell, thenpull it straight
Off.
DO NOT lose the thrust balls (10)located at each
end of the gear cluster191or ellowthem to fell between gears. The ball, which is heavily covered
with grease, usually stays in the shaft recesaes,
but could be dislodged. If caught between gears
and not removed, the balls will seriously damage
the drive housing. If the balls erenot inplace, the
bearings will wear prematurely.
Stop the sprayer at the bottom of its stroke
to get thecrank (El in its lowest position. To
lowar it manually, carefully rotate the blades
of the fan with a screwdriver.
7.
Liberallyapplybearinggrease
to the gearcluster
(101are in
(91. Check to be sure the thrust balls
place.
8. Place the bronze-colored washer (18b)and rhen the
silver-colored washer (16~1
on the shaft protruding
from the big gear in the drive housing (181. Align
the gears and push the new drive housing straight
onto the front end bell and locating pins.
9. Starting at.Step 5andworkingbackwards,continue to reassemble the sprayer.
MOTOR REPLACEMENT(Refer to Fig 28)
CAUTION
DO NOT allow the gear cluster (9) to fall when
removing the drive housing(2).it is easi4 demaged if dropped. The cluster may.stay engaged in
either the front end bell or the drive housing.
1. Remove the motor shield (14) and screws ( 8 4 ) .
2. Disconnectthe pump outlet hose (47) from the
displacement pump outlet nipple (46).
3. Remove the s c r w (15) end pressure control cover
(38)and disconnect the four motor leads. See Fig
19, page 25.
4. Use an adjuatablewrench to l o o s e n the conduit
connector nut (346) at the pressure control
aawmbly (43).
5. Swingthe conduit (22) sway fromtheconduit
elbow (3461.
6. Remove the conduitSeal'(5) from around the wires
in the preswre control. Pull the motor l e a d s
through theelbow, one.at a time.
CAUTION'
Always puli the motor leads oneat s time to avoid
loosening the terminals which couldresult in a bad
connection end poor sprayer performance.
7. Looaen the nut of the connector ( 5 4 ) at the motor
and pull the conduit (22) away from the motor, then
pull the leads through theconduit, one at e time.
8.
9.
10.
11.
Unscrew the connector elbow from the motor.
Pull the wires through the elbow, one at s time.
Remove the front cover and screws (31.32).
Use e 114" hexkeywrench to remove the two
screws (51I and washers(63)from therecess of the
drive housing, end the
two s
c
m (30)and washers
(63)from the lower rear of the motorfront end b e l l
(lb).
12. Use s plastic mallet to gently tap the displacement
pump (39)from therear to loosen the drive housing
from thefront end bell. Thenpull the drive housing
away from the end bell.
DO NOT lose the thrust balls 110) located at each
end of the gear cluster (9) or allow them to fall
between gears. The ball, which is heavily covered
with grease, usually stays in the gear recessea, but
could be dislodged. If caught between gears and
not removed, the balls will seriously damage the
drivehousing. If theballsare not in place, the
bearings will wear prematurely.
13. While supporting the motor to keep the sprayer
from tipping,removethe nuts (40). lockwashers
(41). and capacrews (37) holding the motor mounting plate ( 7 2 ) to the frame.L i i the motorassembly
off the frame.
14. Remove the mounting plate (721, four screws ( 7 9 )
and lockwashers (63)from the old motor, and install them on the new motor.
Ic
1
Besure to install the correctlength of screw.
Longer screws will damage the motor.
15. Place the new motor assembly on the frame and
align with the frame mounting holes.Installthe
screws ( 7 3 ) . lockwashers (41) end nuts (401, tightly.
16. Liberally greasethe gear cluster (9) and pinion gear
10) and pack all bearings in the motor front end
bell. Check to be sure the thrust balls (10) ere in
place.
17. Place the bronze-colored washer (18b) and then the
silver-colored washer (1Bal on the shaft protruding
from the big gear in the drive housing(181.
18. Align the gearsandpushthedrivehousing
(18)
straight onto the frontend beii and locating pins.
19. Starting at Step 11 and working backwards, continue to reassemble the sprayer.
NOTE:
Use a turningmotion ontheconduitwhen
feeding wires through
20. Reinstallthe conduit seal (&not shown) around the
wires in the conduit elbow (345)at the pressure
control to keepcontaminants from enteringthe
pressure control.
21. Reinstall themotor coverandpressure
controi
it.
mer.
PARTS DRAWINO
.
..
. .
.. .. . .
PARTS LIST.
UltraTM
760 Sprayers
Model a l a , Serles A
Includes items 1-86
Basic Sprayer
REF PART
NO. NO.
DESCRIPTION
NO.
Model 2 3 1 4 2
Model m 1 0
Includes items 1-94
Includes items 1-94
Same as Model 231442 except is CSA Certified Complete Sprayer
am
REF PART
NO.
am
DESCRIPTION
46
114
NIPPLE,
162-453
npt(ml x 1/4 npsm
2
47
218-083
HOSE,
grounded,
nylon;
1/4" ID;
Includes replaceable i t e m l a to IC,
cpld 114 npsm(f); 29" (715 mml long:
1
and one each of hems 10 and 11
1
spring guard both ends
2
la
107-267
.TERMINAL,
female
1
48
214-570
FLUID
FILTER;
See 307-273 for parts
1
lb
107-504
.TERMINAL,
female
1
49
106-115
LOCKWASHER,
spring;
3/8"
4
IC
103-885
.TERMINAL,
snap
on
1
1
50
220-286 VALVE,
pressure
relief
2
181-636
LABEL,
identification
1
107-218CAPSCREW,sch;
1/4-20x2-3/4"
2
51
3
181-637
LABEL,
identification
1
54
1084M)
CONNECTOR,
conduit,
45O
4 LABEL,
181-638
identificktion
1
warning
1
57
1
5
107-447
SEAL,
conduit (see page
34) TAG, *17&034
58
101-242
RING,
retaining
2
6
220-365 FRAME
1
1
59
206-994 THROAT
SEAL
LI(1UID.
8 oz.
Includes replaceable k e m 58 & 76
1
181072
7
STRAINER
2
60
106-062
WHEEL
8
155-665
UNION,
adapter,
3/8 npsm(f)
6
63
105-510
LOCKWASHER,
spring,
114"
1
swivel x318 npt(m)
64
108-681
SCREW,
mach;
oval
head:
No.
8
9
. 179961
REDUCER
GEAR
1
6
x 318"
10 114".
BALL,
100069
SST'
,
*177-762
71
LABEL, warning
1
ning
LABEL,
*178-934 11
mounting
1
100-509
12PLUG,
square
head;
npt(ml
1/4
1
1
73
W1-608 LABEL,
warning
100-322
13LOCKWASHER,
externel,
2
76
176884 WASHER,
plain,
5/8"
shakeproof; 7 / 1 6
1
79 unc-3a
1/4-20
101-550
CAPSCREW,
hd; soc
4
x 112
14
181612
SHIELD,
motor;
includes
80
163-035
BRACKET
1
2
one item 11
2
106-075
SCREW,
15head;
thread
81
mach.
oval
? & € & o
l
NUT,
retainer
1
E2
185037 HANGER,
pail
forming; No. 10-24, Type C; 1/2"
4
63
100-016
LOCKWASHER,
114"
179-936
16BRACKET,
mounting
2
84
1W-811
HUBCAP
18
220369 HOUSING,
drive
1
85
'176250
LABEL,
warning
18bIncludes
and 18a
1
4
86
158223 WASHER,
special
1
90
210-541
HOSE,
grounded.
nylon;
3/8" IO;
178-967
1%
.WASHER,
silver-colored
1%
107089
.WASHER.
bronze-colored
cpld 1
114 npsm(f); 50 ft 115 ml spring
1
guard both ends
1
20
176-818
PIN
101-R? CAPSCREW,
sch:
11420x518"
2
214-701
91HOSE,
grounded,
nylon;
3 / 1 6 ID;
21
22
065-099 CONDUIT,
electrical;
specify
length
114
cpld
npsmlf); 3 ft 10.9 m); spring
1
guard both ends
when ordering
o'79h
92
217-593
SPRAY
GUN;
See
307-614
parts
for
1
23
2 1 8 4 5 CIRCUIT
BOARD (see page 34)
93
216001 SPRAY
Reverse-A-Clean
KIT,
TIP
111
1
1
27
218435 HOUSING,
bearing
94
TIP
SPRAY
OF CHOICE
1
1
28
150-513
NUT.
iam: 7/16"
1'*ExtraWarninglabels
and tagsavailable at no charge.
29
218034 ~ ~ ~ ' , i o n n e c t i n g
30
100643 CAPSCREW. sch: 1/4-20 unrc-3a
x 1.0"
HOW TO ORDER REPLACEMENT PARTS
1
179899
31
COVER.
housina
107-209SCRRN,
machyfilh; No. E32x1"
32
1. To be sure you receive the correctreplacement parts,
107-210CAPSCREW,sch;3/8-16
unci%
33
kit or accessories, always giwall of the information
x 1-1/2
requested in the chart below.
179945ADAPTER,elbow.special;1/4-18
34
2. Check the parts list to identify the cowact partnumber;
npth xf)
1
do not use the ref. no. when orderlng.
176817SPRING,retaining
35
1
179-959COVER,pressure
control
36
3. Order all pam from your nearest Graco distributor.
1OE751CAPSCREW,hexhead;5/16-unc-Za
37
x 718"
178941 NUT;
hex
38
217-!37PUMP,displacement;See307-793
39
for parts
PART DESCRIPTION
100214LOCKWASHER.
5/16
40
41
l i i i s S NUT,heavyhex;5/16-18unc-2a
180-573TUBE.intake
42
220455 PRESSURECONTROLASSEMBLY.
43
See page 34
44
100-057CAPSCREW,hexhead;
5/16-unc-Za
x 314"
1
220-354 MOTOR,
electric
'
I
307-788
33
PRESSURE CONTROL ASSEMBLY
Model No. po-466
Includes items 301 to 345
NOTE: Acircuitboard is notincluded with the plaswra
33 to order.
control assembly. See item 23, page
~.
The terminals likted in this parts list am shown in
the wiring diagram onpsge 35.
342 (rear)
344
ART
TION REF
NO. NO.
301
302
393
304
3c5
3m
308
309
310
311
312
314
315
316
317
318
319
320
a1
322
323
324
326
327
21a126 BAREPRESSURECONTROLBOX
Includes items302 to 305
180043 .MICROSWITCH
1 0 5 8 1 9 .ON/OFF SWITCH
105659 .BOOT. ON/OFF switch
107-255 .GUARD, locking
21a1m3 JUMPER WIRE
21a1m BRIDGE, rectifier, SCR
107-258 CIRCUITBREAKER
107-254 BOOT, circuit braaker
21a1w CORD, power supply
107-268 ADAPTER, terminal
107-267 TERMINAL, male
107-293 TERMINAL, female
107-Z@l TERMINAL, male
107398 TERMINAL, male
107-282 TERMINAL, female
107-280 TERMINAL, female
107-288 TERMINAL, female
103885 TERMINAL, male
l m g e s TERMINAL, female
107-286 TERMINAL, female
107-263 TERMINAL. female
102-7SS TERMINAL; ring
157421 LOCKWASHER,No. 8, internal
an
1
1
1
1
1
1
1
1
1
1
1
3
2
1
1
1
1
1
1
3
1
1
1
1
REF PART
NO.
NO.
'
DESCRIPTION
328
329
108-295 BUSHING, strain relief
107-258 TIP, pin, black plastic
330
1 W 1 PIN
101-273
331
SCREW, machine, flat head;
No. 10-24x 5/8" long
332
1 0 0 1 7 9 NUT, hex, mscr, No. 1024 thd
333
100718' LOCKWASHER, internal, shakeproof;
No. 10
334 Y78-787 LABEL,
WARNING
335 "178035 LABEL,
WARNING
338
107-261 TERMINAL,
mala
337
107-YJ3 TERMINAL, femele
338
107-604 TERMINAL,
male
341 157-350
ADAPTER, 3/8npt(m1x 1/2npt(m1
342
1OO-840 ELBOW, street; 1/4npt(mx f )
343
lo"5
SCREW,
mach, eloned pan
hd;
No.
8x5/16"long
344
162-453 NIPPLE, 114 npttrn) x 114 npsm
346
1W-S32 CONNECTOR,
conduit
**Extra Warning labelsend tags suppliedat no cherge.
See "How To Order Replacement&rts" on page33.
an
1
1
1
2
2
2
1
1
2
1
1
1
1
1
1
1
ULTRA 760 TECHNICAL DATA
Power Requirements: 120 VAC, 60 Hz, 1 Phase, 15 AMP minimum
Opereting Range:03000 psi 10-207 bar)
CycleslGellon (liter) :280 (70)
Maximum Delivery:O.6 GPM (2.3literlmin)
Power Cord: No. 14 AWG, 3 wire, 6’6” (2.6 m) long
Inlet Paint Strainer: 16 mesh, (1190 micron), Stainless Steel Screen, reusable
Outlet Paint Rlter: 60 mesh, (250 micron), Stainless Steal Screen, reusable
Pump Inlet Sie:3/4 npt w l P 0 ID chamfer
Fluid Outlet Size: 114 npamfrom fluid filter
Weight:% Ib (43 Kg) epproximtely
Dimen8iona:Width: 22.5 in. (572mm)
Height: 28.0 in. (711 mm)
Length: 26.0 in. ( 8 8 0 mm)
SERVICE INFORMATION
Listed below by the assembly changedare OLD, NEW,
ADDED and DELETED parts.
,
ASSEMBLY PART
CHANGED
STATUS
NAME
NO.
NO.
I
REF PART
~~~~
231Sprayer
OLD
NEW
OLD
NEW
218397 Board
23 218405 Board
101-344 Capscrew
37 108751 Capscrew
DELETED (4) 63
€3
ADDED
84
ADDED
ADDED
85
ADDED
86
105510
100-016
104411
176250
100-016
Capscrew
Lockwasher
Hubcap
Label
Lockwasher
INTERCHANGABILITY NOTE: NEW parts replace OLD
parts listed directly above them.
F a r m y Bmnche€cAtlanta. Dallas. Detrolt. Lo. An elas. Weat Caldwell (N.J.1
Subsidiary a d AtRllete CompenlercCanada; England; Swltra#and; France; Germany; Hong Kong: Japan
GRACO INC. P. 0. Box 1441 MINNEAPOLIS, MN 554401444
PRINTED IN U S A . ?07-788 7 8 6 R a i s a d 1 4 l