Graco 307706G Mid-Range Electrostatic AIR-ASSISTED AIRLESS SPRAY GUN Owner's Manual

INSTRUCTIONS-PARTS LIST
3Q7-7'06
QRACO
This manual contains IMPORTANT
WARNINGS and INSTRUCTIONS
Rev G
SUPERSEDES F
READ AND RETAIN FOR REFERENCE
Manual Mid-Range Electrostatic
AIR-ASSISTEQ AIRLESS SPRAY GUN
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66 bar (950psil MAXIMUM WORKING FLUID PRESSURE
7 bar IlcxI psil MAXIMUM WORKING AIR PRESSURE
Model PROAA40WTM
Part No. 218-668, Series B
Includes a 219-411 0.279 mm (0.011in.l'spray tip
U.S. Patent No. 4,290,091;4,219,865;4,386,7.39;
~>,,
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3,843,052;4,462,061;4,497,447;4,554,622
U.K. Patent No. 2,140,3278;2,111,4068;2,142,5598
Italian Patent No. 1,111,380
West German Patent No. DE 22 09 896
Other US. and Foreign Patents Pending
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Approved
GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1444
@COPYRIGHT 1984,GRACO INC.
TABLE OF CONTENTS
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TERMS
1
HOW THE ELECTROSTATIC AIR-ASSISTED
AIRLESS SPRAY GUN WORKS
1
WARNINGS
Fluid Injection Hazard
2
Equipment Misuse Hazard
3
Fire or Explosion Hazard
3
Grounding
3
Flushing and Cleaning Safety
3
Ventilate t h e Spray B o o t h
3
Hose Safety
3
INSTALLATION
Typical Installation Drawing
4
Ventilate the Spray B o o t h
5
Connect t h e Alr Line
5
Check t h e Electrical Grounding
5
Connect the Fluid Line
6
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Warning Signs
5
OPERATION
Operation Checklist
6
Filter t h e Fluid
6
Install t h e Spray Tip & Adjust the Spray Pettern.6
Spraying Operation
7
Cleaning
7
Fiushlng
7
SERVICE
Troubleshooting
8
Electrical Tests
10
Gun Repair
12
Electrode Wire Replacement
12
Ball Seat Housing 8 Resistor Replacement
12
Gun Housing Removal
I3
Gun Housing Reassembly
1
13
Fluid Needle Replacement
14
Power Cartridge Replacement
16
Turbine Alternator Removal
15
Fen Air Valve Repiecement
16
Air Valve Replacement
16
ES ON-OFF Valve Replacement
17
Muffler, Check Valve and Inlet Filter
Replacement
17
18, 19
PARTS DRAWING &LIST
H O W T O ORDER REPLACEMENTPARTS
19
ACCESSORIES.
SPRAY TIP SELECTION CHART
21
TECHNICAL D A T A
Back Cover
WARRANTY
Back Cover
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Be sure you read and understand each of these terms
before reading the rest of the manual.
warnings on the page indicated.
WARNING Alerts user to avoid or correct conditions which
could cause bodily injury.
FLUID INJECTION INJURY A serious injury, which may appear to be a simple cut, caused by high pressure injection of
PRESSURE RELIEF PROCEDURE A safety procedure for
relieving air and fluid pressure in the system.
The turbine generates power which the power cartridge
converts to a high voltage current. The high voltage
current charges the gun's ionizing electrode.
Fluid is electrostatically charged as it passes the gun's
ionizing electrode. The charged fluid is attracted to the
grounded workpiece, wrapping around and -evenly
coating all surfaces.
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FOR YOUR SAFETY Alerts user to read the additional safety
fluid directly into the body.
ES ON-OFF VALVE An onloff switch located near the rear of
the gun, above the gun handle, which turns the electrostatic
power On Or off.
....
HOW THE ELECTROSTATIC (ES)AIR-ASSISTED AIRLESS S P R A Y G U N WORKS
This gun combines electrostatic air spray and airless
spraying concepts. The air has three functions: (1) to
drive the turbine, (21 to help atomize the paint "tails",
and (3) to help control the pattern size.
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TERMS
CAUTION Alerts user to avoid or correct conditions which
could cause damage to or destruction of equipment.
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The spray tip shapes the fluid into a fan pattern, similar
to a conventional airless spray tip, but a t a lower
pressure. Air from the air cap further atomizes the fluid
and pushes the paint tails into the pattern. The fan adjusting knob controls the width of the pattern.
Note that the air-assisted airless spray gun differs from
the conventional air spray gun in that increasing the
fan air reduces the pattern width. To increase the pattern width, less fan air or a larger size tip must be used.
307-706
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SERIOUS BODILY INJURY, EXPLOSION, FIRE, OR ELECTRIC
SHOCK CAN OCCUR IF THE PRECAUTIONS BELOW ARE NOT
FOLLOWED.
READ AND UNDERSTAND ALL INSTRUCTION MANUALS,
TAGS, AND WARNING LABELS BEFORE OPERATING EQUIPMENT.
ELECTROSTATIC EQUIPMENT SHALL ONLY BE INSTALLED AND
USED BY TRAINED, QUALIFIED PERSONNEL WHO SHALL BE FULLY
CONVERSANT WITH THE REQUIREMENTS STATED WITHIN THIS
INSTRUCTION MANUAL.
FLUID INJECTION HAZARD
General Safety
This equipment generates very high fluid pressure. Spray from
the gun, leaks or ruptured components can inject fluid
through your skin and into your body and cause extIemely
serious bodily injury, including the 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 a t 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 follow the Pressure Relief Procedure, at riaht.
before cleaning or removing the spray tip or servicing any
system equipment.
NEVER try to stop or deflect leaks with your hand or body.
Be sure equipment safety devices are operating properly
before each use.
Spray Gun Safety Devices
Be sure all gun safety devices are operating properly before
each use. Do not remove or modify any part of the gun; this
can cause a malfunction and result in serious bodily injury.
Safety Latch
Whenever you stop spraying, even for a moment. always set
the gun safety latch in the closed or "locked' position, making
the gun inoperative by depressing the safety latch on the left
or right of trigger. See the illustration below. Failure to set the
safety latch can result in accidental triggering of the gun.
To disengage the latch, push it toward the trigger and up.
SAFETY LATCH
SHOWN lN.CLOSED
Medical Alert-Airless Spray Wounds
If any fluid appears to penetrate your skin, get EMERGENCY
MEDICAL CARE AT ONCE. DO NOT TREAT AS A
SIMPLE CUT. Tell the doctor exactly what fluid was injected.
Noie io Physician: Injection in the skin is a traumatic injut?!.
It is important t o treat the injury surgically as soon as
possible. Do not delay treatment to research toxicity. Toxicity is a concern with some exotic coatings injected directly
into the bloodstreem; Consultation with a plastic surgeon or
reconstructive hand surgeon may be advisable.
Pressure Relief Procedure
To reducethe risk of serious bodily injury, including fluid injection, injury from moving parts, splashing in the eyes or on the
skin. or electric shock, always follow this procedure when
shutting off the system, when checking or servicing any part
of the spray system, when installing. cleaning or changing
spray tips, and whenever you stop spraying.
1. Engage the gun safety latch.'.
2. Turn the ES ON-OFF valve lever to OFF.
3. Turn off air and fluid SUDDIV
to the aun.
4. Disengage the gun safeiv latch.
5. Trigger the gun into a grounded metal waste container to
relieve fluid ,~
oressure.
~ ~ - 6. Engage the gun safety latch.
7. Open the pump drain valve, having e grounded metal waste
container ready to catch the drainage.
8. Leave the pump drain valve open until you are ready to
spray again.
If you suspect that the tip or hose is completely clogged, or
that pressure has not been fully relieved after following the
steps ,above, VERY SLOWLY loosen the air cap retainer or
hose end coupling and relieve pressure gradually, then loosen
completely. Now clear the tip or hose.
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Bleed-Type Air Shutoff Valve and Fluid Drain
Valva Required
These two accessories are required in your system to help
reduce the risk of serious bodily injury, including splashing in
the eyes or on the skin and injury from moving parts if you are
adjusting or repairing the pump.
Diffuser
The gun diffuser breaks up spray and reduces the risk of fluid
injection when the spray tip is not installed. To check diffuser
operation, follow the Pressure Relief Procedure. at right,
and then remove the spray tip. Aim the gun into a grounded
metal pail. With the ES ON-OFFvalve lever turned to OFF, and
using the lowest possible pressure, trigger the gun. Ifthe fluid
emined is not diffused into an irregular stream, replace the diffuser immediately,
Spray l i p Safety
?Jse extrema caution when cleaning or changing spray tips. If
the Spray tip clogs while spraying, engage the gun safety latch
immediately. ALWAYS follow the Pressure Relief Procedure and then remove the spray tip to clean it.
NEVER wipe off build-up around thespray tip until pressure is
fully relieved and the gun safety latch is engaged.
2
307-706
The bleed-type air shutoff valve relieves air trapped beween
this valve and the oumo after the air reoulator is shut off. Traoped air can causeihe pump to cycle uhxpectedly. Locate the
valve within easy reach of the pump.
The fluid drain valve assists in relieving fluid pressure in the
displacement pump, hose and gun: triggering the gun to
relieve pressure may not be sufficient.
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EQUIPMENT MISUSE HAZARD
General Safety
Any misuse of the spray equipment or accessories, such as
overpressurizing, modifying parts, using incompatible
chemicals and fluids, or using worn or damaged parts, can
cBuse them to rupture and reSult in fluid injection
or other
serious bodily injury, fire, explosion or property damage.
NEVER alter or modify any part of this equipment; doing so
could cause it to malfunction.
CHECK a11 spray equipment regularly and repair or replace
worn or damaged parts immediately.
This gun has a maximum working pressure of 66 bar
(950 psi). Never exceed the maximum working pressure of the
gun or any other component or accessory used in the system.
Read and follow the fluid and solvent manufacturer's literature
regarding the use of protective clothing and equipment.
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FIRE OR EXPLOSION HAZARD
All parts of the electrostatic spray system must be properly
grounded to reduce the risk of static electricity discharge.
Static electricity is created by the high velocity flow of fluid
through the pump and hose and the spray gun's internal
power supply. Ungrounded objects can become electrically
charged and sparking may occur. Sparks can ignite fumes
from solvents, fluid being sprayed, dust particles and other
flammable substances, which can cause a fire or explosion
and result in serious bodily injury and propeny damye.
If you experience any sparking or feel even a slight shock,
STOP SPRAYING IMMEDIATELY. Check for proper grounding of the entire system. Be sure you have corrected the problem before starting to spray again.
Grounding
Following are the minimum requirements for grounding a
basic electrostatic system. Your system may include other
equipment or objects which must also be grounded. Always
check your local electrical code for detailed grounding instructions. Be sure your system is connected to a true earth
ground.
1. Pump: ground by using a ground wire and clamp as
described in your separate pump instruction manual.
2. Air compressors and hydraulic power supplies: ground
according to the manufacturer's recommendations.
3. PROAA4(Mo gun: obtain grounding through connection
to a properly grounded air supply hose. Use only the
GRACO GROUNDEDAIR SUPPLY HOSE; see page 21 to
order. Connect the air hose ground wire to a true earth
ground.
4. Object being sprayed: keep workpieca hangers clean and
grounded a t a11 times. Contact points must be sharp
points or knife edges.
5. All electrically conductive objects in the spray area must
be properly grounded.
6. Allpersons entering the spray area: shoes must have con-
ductive soles, such as leather, or personal grounding
straps must be worn. Rubber or plastic soles are not conductive. The operator must not wear gloves which insulate the hand from the spray gun. See page 5 for how
t o modify the glove.
7. The floor of the spray area must be electrically conductive
and grounded. Do not cover the floor with cardboard or
any non-conductive material which would interrupt
grounding continuity.
8. Flammable llauids in the smav area must be keot in aoproved, grouAded containers. 'Do not store morethan the
quantity needed for one shift.
9. Allsolvent pails: use only grounded metal pails, which are
conductive. Do not place the pail on any non-conductive
surface, such as cardboard or paper, which would interrupt grounding continuity.
Flushina end Cleanina Safetv
To reducethe risk of a h i d inje'ctioninjury, static sparking, or
splashing. always follow the Pressure Rellef Procedure on
page 2 and remove the spray tip before flushing. Use lowest
possible pressure and use a grounded metal waste container.
Be sure the ES valve lever is OFF during flushing.
NNER use solvents having a flash point of less than 21OC
170°F) to clean the gun. NNER use solvents having a flash
point of less than 38% (100°F) to clean the spray system.
ALWAYS remove all solvent from the system before reactivating the spray gun.
Use only non-sparking tools to clean residue from the booth
and hangers.
Ventilate the Spray Booth
To prevent hazardous concentrations of toxic and/or flammable vapors, spray only in a properly ventilated spray booth.
NEVER operate the spray gun unless the ventilating fans are
operating.
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HOSE SAFETY
Highly pressurized fluid contained in the tiose can be very
dangerous. If the hose.developsa leak, split or rupture due to
any kind of wear, damage or misuse, the high pressure spray
emitted from it can cause a fluid injection injury or other
serious bodily injury or propeny damage.
TIGHTEN all fluid connections securely before each use. High
pressure fluid can dislodge a loose coupling or allow high
pressure spray to be emitted from the coupling.
NEVER use a damaged hose. Before each use, check 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 tape or any other device. A
repaired hose cannot contain the high 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.'
DO NOT expose Graco hose to temperatures above 82OC
(180°F) or below -40°C (40°FI.
IMPORTANT
United States Governmentsafety standards have been adopted under the Occupational Safety and Health Act. These standards-particularly the General Standards, Part 1910.107 and any other appropriate regulations-should be consulted in connection with the installation, operation and maintenance of electrostatic spray painting equipment.
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INSTALLATIO
TYPICAL INSTALLATION
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NON-HAZARDOUSLOCATION
KEY
A Main Air Supply Line
Interlock Solenoid Valve
C Main Air Supply Shutoff Valve Ibleed-n/pe)
D Air Et Water Separator
E Pump Air Supplv Shutoff Valve (bleed-type1
F Air Line Lubricator
G Air Pressure Regulator
H . Air-Assisted Airless PumD
J Pump Ground Wire
K Fluid Filter
L Fluid Supply Line Shutoff Valve
M Fluid Pressure Regulator
B
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Ventilation Fan
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HAZAROOUS LOCATION
Alr Supply To Gun Must Be Interlocked
With Spray Booth Exhaust Fan
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The Typical Installation shown above is only a guide for
selecting and installing equipment for an electrostatic
air-assisted airless spray system. It is not an actual
system design. Contact your Graco representative for
custom-designed systems information.
N
0
Fluid Supply Line
Air Filter
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Air Supply Line Shutoff Valve Ibleed-tvpei
Q Spray Gun Ground Wire
R Grounded Air Supply How
S Electrostatic Spray Gun
T ES "ON-OFF" Valve Lever
U Air Line Drain Valve
V Fluid Drain Valve
CC Gun Air Inlet
DD Gun Fluid Inlet
P
The pump you use should have a maximum working
pressure of 66 bar 1950 psi). If the pump you are using
has a higher maximum working pressure, you must use
a regulator to limit the pressure to 66 bar (950 psi).
Graco's 1O:l Ratio Monark Pump, Part No. 217-523,
may be used in this system. See Accessories.
Be sure your installation complies with National, State and Local codes for the installation of electrical apparatus in
a Class 1, Group D, Divisions 1 and 2 Hazardous Location.
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307-706
Ventilate t h e Spray B o o t h
I
Modify 'the operator's glove, if used, so that the
operator's hand will not be insulated from the spray
gun handle. See Fig 1.
1.
WARNING
To prevent hazardous concentrations of toxic
and/or flammable vapors, spray only in a properly
ventilated spray booth. NEVER operate t h e
spray gun .unless t h e ventilation fans are
operating.
I
Check and follow all of the National, State and
Local codes regarding air exhaust velocity
requirements.
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Check and follow all local safety and fire codes.
Checkand follow OSHAstandard 1910-107(b)(5)(i).
NOTE:
2.
H a w a qualified electrician check the electrical
grounding continuity of the spray gun and air hose.
High velocity exhaust will decrease the
operating efficiency of the electrostatic
system. Air exhaust velocity of 31-46 linear
meterslrninute (100-150 ftlmin) should be
sufficient.
a.
-.
Connect t h e Air Line (See Typical Installation)
WARNING
To reduce the risk of electric shock or other
serious bodily injury, the A i r Supply Hose must
be electrically connected t o a true earth ground.
Use Only Graco Electrically Conductive Air
Supply Hose. This hose and the gun have special
threads which prevent using any other type of
hose with the gun. See the Accessories section
for ordering the hose.
NOTE:
..
b.
1.
Connect the air supply hose (R) between the air
supply line and the gun's air inlet ICC). Connect the
ground wire t o a true earth ground.
2.
Install an air filter (0)
and an air and water separator
(Dl on the air line t o ensure a dry, clean air supply t o
the gun. Dirt and moisture can ruin the appearance
of your finished workpiece and can cause the gun
t o malfunction.
.3.
Also install an air regulator (G) on the pump and
gun air supply lines to control air pressure t o the
pump and gun.
4.
Install an air line lubricator (F) close to the pump.
5. Install a bleed-type air shutoff valve (C, E Et P) on
the main air line and the pump and gun air supply
lines t o shut off air t o the pump and gun. See
Bleed-type Air Shutoff Valve a n d Fluid Drain
Valve Required, page 2.
Check t h e Electrical Grounding
WARNING
Proper electrical aroundina of evew Dart of vour
system is essencal. For \our safe&, read'the
warning section FIRE OR EXPLOSION
H A Z A R D on page 3. Then ground the system as
explained in that section.
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With the air hose connected and properly
grounded, use a megohmmeter (AA) t o
measure the resistance between the gun handle
(BE) and a true earth ground (PP), using an applied voltage of 500 volts minimum to loo0
volts maximum. See Fig 2.
If the air hose is not grounded, you will get a
false reading.
If the resistance is greater than 2 megohms,
check the tightness of the ground connections,
and be sure the air supply hose ground wire is
connected to a true earth ground. If the
resistance is still greater than 2 megohms,
replace the air supply hose.
Connect t h e Fluid Line (See Typical Installation)
1. Blow out the fluid line with air and flush it with solvent before connecting it to the gun. Use solvent
which is compatible with the fluid t o be sprayed.
2. Install a fluid regulator (MI on the fluid line to control fluid pressure to the gun.
3.
Install a fluid filter (K) and drain valve (V) a t the
pump outlet. The drain valve assists in relieving
fluid pressure in the displacement pump, hose and
gun. See Bleed-Type Air Shutoff Valve and
Fluid Drain Valve Required, page 2.
4.
Connect the fluid line to the 1/4-18.6fm) gun fluid
inlet (DD).
Warning Signs
An English and a Spanish warning sign is supplied with
the gun. Mount these signs in the spray area where they
can easily be seen and read by all operators. This sign is
also available in French and German. See the Accessories section o n page 21.
I
KEY
AA
BB
PP
Fig
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Megohmmeter
Gun Handle
True Earth Ground
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307-706
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WARNING
OPERATION
VERTICALSPRAY PAlTERN
HORIZONTALSPRAY PAl7ERN
Relief Procedure on page 2 when shutting off
the system, when you stop spraying, and before
checking, servicing, installing, cleaning or changOperating Checklist
Check the following list daily, before starting t o operate
the system, to help assure you of safe efficient
operation.
-1.
Be sure all operators are properly trained in the
safe operation of an air-assisted airless electrostatic spray system.
2.
Be sure all operators have been trained on how
to properly and completely relieve system
pressure.
-3.
-.
Be sure the system is thoroughly grounded. See
FIRE OR EXPLOSION HAZARD on Dage 3,
and Check tt a Electrical Grounding on page
5.
4
. Be sure the operatrr and all persons entering the
-5.
NO AIR
Fig 4
TOO LllTLEAIR
RIGHTAMOUNT
OF AIR
spray area are properly grounded and that the
operator's glove, if used is modified so that he is
not isolated from ground. Refer to Fig 1, page 5.
Be sure ventilation fans are operating properly.
6
. Be sure the workpiece hangers are clean. Con-
-7.
Be sure all refuse is removed from the spray
booth.
-8.
Be sure all flammable liquids in the spray booth
are in approved, grounded containers.
tact points must be sharp points or knife edges.
Filter t h e Fluid
Filter the fluid to be sprayed to remove coarse particles
and sediment which could clog :he spray tip.
Install t h e Spray Tip & Adjust the.Spray Pattern
1. Select the appropriate spray tip for your application
from the Spray Tip Selection Chart on page 21. The
fluid output and fan width depend on the size of the.
spray tip, the fluid viscosity, and the fluid pressure.
2. Place the tip 1131 in the air cap 1121, aligning the tab
of the tip with the groove in the air cap. Be careful
not to damage the electrode wire (GGI. Place the
air cap assembly on the gun. Screw on the retaining
nut 1111 flrmly t o prevent leakage between the tip
and ball seat housing 1141. See Fig 5. The air cap
and spray tip position determines the direction of
the spray pattern. See Fig 3.
WARNING
Operating the gun without the electrode wire or
with a bent or damaged electrode wire will impair
the electrical continuity of the gun. To reduce the
risk of electrical discharge, which could cause
serious bodily injury, fire, or explosion, be sure
the electrode wire is properly installed in the gun
(see page 121 and is not bent or damaged before
operating the gun.
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307-706
Fig 5
3. Adjust the fluid pressure. Turn on the fluid to about
21 bar 1300 psi). Trigger the gun to check the
atomization; don't be concerned about the pat-
tern shape yet. Increase the fluid pressure just to
the point that any further increase in fluid pressure
does not significantly improve fluid atomization.
DO NOT exceed 66 bar 1950 psi1 fluid pressure.
4. Turn the ES ON-OFF valve lever IT1 to ON. See
Fig 5.
5. Be sure the fan adjusting knob (EEI is fully closed
(turned all the way counterclockwisel.
i
!
6. Set the atomizing air. pressure t o 3.1 bar (45 psi).
NOTE:
3.
A minimum of 2.8 bar (40psi) air pressure to
the gun is required to drive the turbine fast
a.
enough for maximum electrostatic effect.
7. Check the spray pattern, then adjust the air
pressure until all the tail8 are completely atomized
and pulled into the spray pattern. Refer to Fig 4.
For a narrower pattern, try turning the fan adjusting
knob (€El clockwise. If the pattern is still not nar-
Remove the air cap and spray tip.
b. Clean the tip and air cap with solvent and scrub
with a soft brush.
c.
row enough, increase the air line pressure slightly or
use a different size tip.
Spraying Operation
This gun has a built-in lead and lag operation. The gun
begins emitting air before the fluid is discharged. When
you release the trigger, the fluid stops before the air
flow stops. This helps prevent fluid buildup on the air
cap and assures the fluid is atomized.
Use a soft brush or other soft tool, with en air
blow gun, t o clean the air cap passages. Take
care not to scratch'anv surfaces. If the air cap
holes are plugged, a round toothpick can be used to unplug the holes, without damaging the
air cap.
4.
CAUTION
Do not use metal tools to clean the air cap holes as
WARNING
this may scratch them, and make sure the electrode wire is not damaged. Scratches in the air
cap holes or a damaged electrode wire can distort
the spray pattern.
For Your Safety, always follow the Pressure
Relief Procedure on page 2 when shutting off
the system, when you stop spraying and before
checking, servicing, installing, cleaning or changing any part in the system.
hshing
Remove the filter (26)
and clean thoroughly in a
compatible non-conductive solvent.
c.
Reinstall the filter and inlet fitting. Do not overtighten the inlet fitting, which could distort the
filter.
2. Clean the outside of the gun daily with a soft cloth
dampened in a compatible solvent.
CAUTION
Be careful not to damage the electrode by catching the cloth on it when wiping off the gun.
WARNING
For Your Safety, always follow the Pressure
Relief Procedure on page 2 when shutting off
the system, when you stop spraying and before
checking, servicing, installing, cleaning or changing any part in the system.
Fig 6
b.
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ged air passages cause poor atomization and excessive current demands. Point the gun down
while cleaning to prevent d i m solvent from running back into the air passages. NEVER IMMERSE
THE GUN IN SOLVENT.
Clean ell parts with a non-conductive solvent
which is compatible with the fluid being sprayed.
Conductive solvents can cause the gun to
malfunction.
Clean the fluid filter (26)daily. See Fig 6.
a. Unscrew and remove the fluid inlet fitting (25).
. . .
Do not use any cleaning method w h i c h may
allow aolvent into t h e gun alr passages. Clog-
&\
1.
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Check the electrode wire. Straighten it if it is bent,
and replace it if it is broken or damaged. See page
12 for replacing the electrode wire.
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Cleaning
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WARNING
To avoid damaging the ball seat housing resistor,
use e soft bristle brush dipped in solvent to clean
it; DO NOT soak it in solvent1 A damaged resistor
will impair the electrical continuity and could
result in electrical discharge, which could cause
serious bodily injury, fire, or explosion.
When spraying, the ES indicator lights (44) should
glow, indicating electrostatic charge. See Fig.5.
Be careful not to damage the electrode by jamming it into an object when operating or setting
gun. U
I down
C the A
T
'
O
N
1
Clean the spray tip and air cap daily, minimum.
Some applications require more frequent cleaning.
Replace spray tip and air cap if they are damaged.
1.
Be sure the ES valve lever is turned OFF during
flushing.
2.
Disconnect and plug the fluid supply line.
3. Connect the solvent supply to the gun, and run solvent through the gun.
4. Disconnect the solvent supply, and reconnect the
fluid supply line.
5. Trigger the gun until it is clean of solvant.
,
,
. .
.
-.
SERVICE
i
WARNING
Installing and servicing this equipment requires access t o parts which may cause electrlc shock or other serious
bodily injury. Do not install or service this equipment unless you are trained and qualified.
.. .
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on
the skin, or injury from moving parts or electric
shock, always follow this procedure before servicing any part of the gun or system.
WARNING
1. Engage the gun safety latch.
2. Turn the ES ON-OFF valve lever to OFF.
3. Turn off air and fluid supply t o the gun.
4. Disengage the gun safety latch.
5. Trigger the gun into a grounded metal waste
container t o relieve fluid pressure.
NOTE:
..
. .
.
'
6. Engage the gun safety latch.
7. Open the pump drain valve, having a grounded
metal waste container ready t o catch the
drainage.
8. Leave the pump drain valve open until you are
ready t o spray again.
If you suspect that the tip or hose is completely
clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen the air cap retainer or hose end coupling and relieve pressure gradually, then loosen
completely. Now clear the tip or hose.
. .
Check all possible remedies in the Troubleshooting Charts before disassembling gun.
SPRAY PAlTERN TROUBLESHOOTING CHART
CAUSE
SOLUTION
Fluttering or spitting spray
Insufficient fluid supply
Adjust fluid regulator or fill fluid
container.
Air in paint supply line
Check, tighten siphon hose
connections, bleed air from
paint line.
Fluid build up or spray tip partially plugged.
Clean spray tip.
Air horn lioles'on defective side
of pattern partially or totally
plugged
Clean air horn holes with solvent and soft brush.
Air horn holes partially or totally
p k w d
Clean air horn holes with solvent and soft brush.
Air to gun is too low
Increase air.
Fluid pressure too low
Increase fluid pressure,
Irregular pattern
Pattern pushed to one side, same
side of air cap gets dirty
8
. , ,. .
PROBLEM:
IMPROPER
SPRAY PAlTERN
307-706
:<::.:.
. .
i
.
.
GUN OPERATION TROUBLESHOOTING CHART
PROBLEM
CAUSE
SOLUTION
Air leakage from front of gun.
Air valve not seating properly.
Clean, service.
Air stem packing too tight.
Loosen packing.
Loose or worn fluid seat.
Tighten or replace fluid seat and/or
electrode.
Loose fluid tip.
Tighten.
Insufficient air pressure.
Increase, use least air pressure needed for good results.
Using too large of a fluid tip.
Use a smeller size fluid tip.
Fluid poorly mixed or filtered.
Remix or refilter fluid.
Improper thinner being used.
Use proper thinner.
Too muGh air pressure.
Reduce. use least air pressure needed
for good results.
Fluid thinned too much.
Properly thin fluid.
Fluid low.
Check, add if necessary.
Broken fluid needle shaft.
Replace needle.
D i w or clogged fluid tip.
Clean fluid tip.
Damaged fluid tip.
Check, replace fluid tip.
Exhaust air flow insufficient or not directed
properly.
Check for proper CFM, check baffles
and direction of air flow.
Improper distance between gun and work
piece.
Adjust distance to 203-305 mm
18-12 in.).
Fluid leakage from front of gun.
"Orange Peel" finish.
Excessive spray fog.
No fluid sprays from gun.
Equipment covered with paint.
307-706
9
ELECTRICAL TROUBLESHOOTING CHART
CAUSE
PROBLEM
~~~
*ES ON-OFF valve in OFF position.
Poor wrao-around.
Operator gets mild shock.
~
Operator gets mild shock when
touching workpiece.
SOLUTION
Turn valve to
ON.
"Turbine alternator not operating
(no audible whine).
Check air supply to gun. Turn ES
ON-OFF valve to on. Check for dirt
or moisture in turbine.
Improper distance between gun and
workpiece.
Adjust spraying distance to 203-305
mm 18-12 in.).
Parts poorly grounded
Clean workpiece hangers. Check for
proper ground on conveyor or
track.
High booth exhaust velocity.
Reduce, within code limits.
Too high atomizing air pressure.
Reduce air pressure
"Too low_'!uid resistivity.
Check fluid resistivity with paint
meter and probe (refer to instruction manual 307-263).
"Faulty gun resistance.
Check gun resistance. See Elec
trice1 Tests, below.
"Faulty resistor stud resistance.
Check resistor stud resistance. See
Electrical Tests, below.
"Faulty power supply resistance.
Check power supply resistance. See
Electrical Tests. below.
'Faulty needle electrode assembly.
Replace needle electrode assembly.
"Faulty turbine alternator.
Be sure plug is in place on back of
turbine alternator housing; Remove
and test turbine alternator; See Service Section; Replace turbine alternator if necessary.
Operator not properly grounded.
Be sure floor is properly grounded.
Wear shoes with non-insulating
soles. If gloves are worn, be sure to
modify as described in Operation
section.
Gun not properly grounded.
Be sure Graco air supply hose is being used and is properly grounded.
Workpiece not properly grounded.
Clean workpiece hangers. Check for
proper ground on conveyor or
track.
triggered.
ELECTRICAL TESTS
The performance of the spray gun is directly affected b y
the condition of the electrical components contained inside the gun. The electrical tests on page 11 can be used
to determine the condition of the power supply (3)and
the ball seat housing and resistor 114). as well as the
continuity of the electrical path between the components.
Use megohmmeter 218-979 (see ACCESSORIES)and
an applied voltage of 500 volts t o complete these electrical tests.
10
307-706
WARNING
from explosion or fire caused by sparking, do not
use megohmmeter in the hazardous area; remove
Electrical Tests continued on page 11.
i
NOTE:
Be sure t o read the information on page.10
MEGOHMMETER
under Electrical Test before conductmg
any of the tests below.
Test t h e Gun Resistance (See Fig 7)
NOTE: Check the resistance with the gun triggered
and untriggered.
Measure the gun resistance between the end of the gun
electrode wire (GG) and the air inlet fitting 132a). Insert
the lead from the electrode wire into the hole closest t o
"E" on the megohmmeter. Insert the lead from the air
inlet into the second hole to the right of "L" on the
megohmrnster. The resistance should be between
115-152 megohms. If the resistance is outside the
specified range, go to the next test. If the resistance is
correct, refer to the ELECTRICAL TROUBLESHOOTING CHART on page 10 for other possible causes of
poor performance.
Test t h e Power Supply Resistance (See Fig 8)
Remove the power cartridge (1) from the gun
-. handle
(32). See page 15.
Remove the turbine alternator (la) from the power
supply (3). See Fig 20, page 15.
Measure the resistance between the center prong (HH)
in the power supply and the contact spring (3b) on the
other end of the power supply. Insert the lead from the
spring into the hole closest to "E' on the megohmmeter. Insert the lead from the center prong into the second hole to the right of "L" on the megohmmeter.
..
. .
. .
KEY
32
Z!a
GO
KEY
3b
HH
Gun Handle
Air Inlet Fining
Electrode Wire
Contact Pin
Center Prong
The resistance should be 95-122 megohms. If the
resistance is outside the specified range, the power supply (3) is defective and must be replaced. See page 15.
If the resistance of the power supply is correct, proceed
to the next test.
Test Resistance of Resistor (See Fig 9 Et 10)
Insert a conductive rod (JJ) into the rear of the gun
housing (9) (which you removed in a previous test) and
press it against the contact (KK) which is molded into
the front of the gun housing.
'
MEGOHMMETER
KEY
9
Gun Housing
GO Electrode Wire
JJ
Conductive
KK
Contact
. ..
.. ..,
,~
,
/MEGOHMMETER
,
E
,.. .
..,:.,. .
'h
U
Measure the resistance between the conductive rod
(JJ) and the gun electrode wire ( G G ) . Insert the lead
from the electrode wire into the hole closest to "E" on
the megohmmeter. Insert the lead from the conductive
rod into the second hole to the right of "L" on the
megohmmeter.
The resistance should be 20-30 megohms. If the
resistance is correct, refer to the Electrical
Troubleshooting Chart for other possible causes of poor
performance, or contact your nearest authorized service
agency.
If the resistance is outside the specified range, remove
the electrode wire (GG). See Electrode Wire Replacement, page 12. Measure the resistance between the
conductive rod (JJ) and the resistor (LL) in the outside
diameter of the ball seat housing (14).
..
GO
Fig 9
KEY
14
JJ
LL
~
.... ....
Ball Seat Housing
The resistance should be 20-30 megohms. If the
resistance is correct, the electrode wire ( G G ) is defective and must be replaced. If the resistance is still outside the specified range, the resistor is defective and the
ball seat housing (14) must be replaced. See page 12.
Fig 10
307-706
11
r
Gun Repair
'
Bell Seat Housing
Realstor Replacement
(See Figs 11 b 12)
Unscrew the retaining nut (1 1). Remove the air cap (12)
and spray tip (13).
WARNING
To reduce the risk of serious bodily injury, including fluid injection, spleshing in the eyes or on
the skin, or injury from moving parts or electric
shock, always follow the Pressure Rellef Procedure Warning on page 8, before servicing any
part of the gun or system.
Insert the special wrench (&I1 in the front of the gun,
While triggering the gun, unscrew the ball seat housing
(14) and remove it.
If you are replacing the fluid needle assembly, do not
reassemble the gun. If no further service is required, install the new housing in the reverse order of
disassembly. Torque the ball seat housing to 1.1 N m
(10 in-lb) (snug); DO NOT OVERTIGHTEN.
Installing and servicing this equipment requires
access t o parts which may cause electric shock or
other serious bodily injury. Do not install or service
the equipment unless you are trained and
qualified.
I
I
service or remir. The service or reoair ere8 must
be kept clean to prevent contaminating the parts
_.
with dirt.
If the plastic parts of the gun must be held secure-
. .. . ,..
. . .,.
. . ..
,. . . ..,
., ,
..
KEY
14
Ball Seat Housing
63d Wrench
ly, ALWAYS clamp them in padded vice jaws to
prevent damage t o the perts.
ALWAYS lubricate the rings and seals with petroleum jelly to prevent damage during installation.
l
1. Flush the gun. See page 7. Follow the Pressure
Relief Procedure Warning on page 8.
2.
.. . ..
Disconnect the fluid supply hose from the gun inlet
fitting (DD). Sea the Typical Installation page 4.
3. Disconnect the air supply line from the gun sir inlet
fitting (CC). See the Typical Installation page 4.
Fig 11
Electrode Wire Replacement (See Fig 11)
Unscrewthe reteining nut (11). Remove theair cap (12)
and spray tip (131.
... i.
Fig 12
Use e needle nose pliers to gently pull the electrode wire
(GGI out the back of the spray tip. lnstell the long end of
the new wire in the hole closest to the tab of the tip. Push
the wire in, aligning the short end of the wire with the
other hole in the tip. Pull on the front of the wire to Seat
it. A box of 10 electrodes is included in the tool kB (63).
i
Gun Housing Removal (See Figs 13, 14 Et 15)
Remove the ring nut, air cap, and spray tip. Unscrew
the fluid tube connector ( F F ) at the bottom of the fluid
tube (201. then pull the tube out of the inlet.
KEY
1
Power Cartridge
4
Gasket
9
Gun Housing
32
Gun Handle
If you are replacing the needle, insert the special wrench
( a d ) in the front ofthe gun. Whiletriggering the gun, unscrew the ball seat housing (14)and remove it. See Fig 12.
Remove the trigger screws (77, spacers (761 and the
trigger (19). Remove the ES indicator lights (44).Then,
using the wrench
supplied, loosen and remove
the two socket head capscrews (45) from the gun.
(63f).
Hold the gun handle (32) with-one hand and pull the gun
housing (9) straight up t o remove it.
CAUTION
Leave the gasket (4) in the gun handle (32)if you are not
replacing it. Perform whatever service is necessary,
then reinstall the gun housing as follows.
Gun Housing Reassembly (See Figs 13, 14 8 15)
If the needle assembly was removed, reinstall it as described on page 14. Be sure the gasket (4) is in place on the
gun handle (32).Place the gun housing (9) over the power cartridge (1) and position it onto the gun handle (32).
Install the two socket head capscrews (45) and tighten
( 6 3 f ) . Push the ES indicator lights (44)
into place over the capscrews (45).
with the wrench
Fig 14
KEY
19
Trigger
44
ES Indicator Lights
836 Pressing Tool
72
Screw
~~
~
Insert the fluid tube (20) into the fluid inlet fitting, making sure the washer (20a) is in place, and tighten the
fluid tube connector (FF).
If the ball seat housing (14) was removed, insert the
pressing tool (63c) in the front of the gun and gently
push the needle back. Then slide the trigger (19) into
place and install the spacers (76) and screws ( 7 7 ) .
Remove the tool.
"--I\
Reinstall the ball seat housing (see page 12). air cap,
I
spray tip and ring nut.
,
Fig 13
Fig 15
307-706
13
Fluid Needle Replacement (See Figs 16 Et 17)
Remove the gun housing (9)as instructed on page 13. If
the power supply (3) comes out, carefully press it back
into the handle.
Insert the narrow end of the pressing tool (63cl through
the front of the gun t o push the needle back, then remove the nut (211 and the adjustment nut (17a). Press
the needle assembly (17) out the front of the gun as far as
you can with a finger, or by pressing it against a flat surface. Then use the wrench ( 6 3 f ) to finish pushing it out.
KEY
17
17s
WARNING
For your safety, check to be sure the gun safety
latch works properly each time after you change
the needle, See FLUID INJECTION HAZARD,
page 2.
1. Engage the trigger safety latch to the right,
then try t o trigger the gun. Look behind the
trigger t o be sure it is not engaging the nut
(17a). Then engage the latch t o the left and
check again. See Fig 18.
m
ma
21
63f
FF
Fig 18
2. Disengage the trigger safety latch, and trigger
the gun gently t o see if you can feel the "lead
and lag" operation, which means the air will
come on before the fluid does, and the fluid
shuts off before the air does.
Remove the nut (17a) from the new needle assembly,
then install the new needle assembly through the front of
the gun. Insert the narrow end of the pressing tool (63d
into the front of the gun and press to seat the needle.
Reinstall the new adjustment nut (17al. hex end first,
onto the needle. Use the pressing tool ( 6 3 ~t)o press on
the needle from the front of the gun, then screw the adjusting nut a// the way to the bonom of the threads.
Remove the tool. Screw the other nut (21) firmly
egeinst the adjustment nut t o "lock" them together.
Reassemble the gun as described in Gun Housing
Reassembly on page 13.
KEY
17s
21
634
Adjuslmenl Nut
Nut
.
P,..i""
~
..
Tnn1
Fig 17
14 307-706
/1
~
7
a
3. If the gun fails either of these tests, remove the
trigger and the ball seat housing. Back the nuts
away from the bottom of the ,threads.
Reassemble and check tests 1 and 2 above.
Also check in front of the trigger to make sure
the needle still moves. If it fails any of these
tests now, the needle assembly is out of
tolerance and must be replaced.
j
!
i
I
I. :.
1
,
.. ::
. ...,
. ,.
.
I..
,
.
..
1
Use care when
Turbine Alternator Removal fSee Fig 20)
Remove the power cartridge (1I from the gun handle as
instructed at left.
DO NOT USE solvents to clean the power cartridge cavity in the gun handle (32). Solvents will
damage the electrical components in the power
cartridge.
Carefully twist the turbine alternator ( l a ) counterclockwise and pull it off the power supply, just until it is
Then continue t o
disengaged from the coupling 1").
slowly pull the turbine alternator away from the power
supply, disconnecting the 3-wire connector (NN).
Power Cartridge Replacement (See Fig 19)
The power cartridge (1) is fragile.
handling it t o avoid damaging it,
All O-rings (lb, 3a. 3c) and the conductive spring
(3b) must be in place when reassembling the gun,
it willA
malfunction.
r orC
U T I 0
Remove the gun housing (9). See page 13. Remove the
gasket (4) from the gun handle (32).
Grasp the power cartridge with your hand and use a
gentle rocking motion t o free it from the gun handle
(32). Then pull the power cartridge (1) straight out of
the handle.
CAUTION
(32) is very clean and dry. Moisture and other con-
Inspect the power cartridge cavity in the handle (32) for
dirt and moisture. Clean the cavity with a clean, dry rag,
if necessary. Don't use solvent.
Use an ohmmeter t o test the coil in the turbine alternator (la). Measure the resistance between the t w o
outer terminals of the 3-wire connector INN). The
resistance should be 3-5 ohms. If the reading varies
from this value, replace the alternator.
. .. . .
. .
Measure the resistance between each outer terminal of
the 3-wire connector and the turbine alternator housing
(la). The resistance should be infinite. If the resistance
is not infinite, replace the alternator.
Partially connect the 3-wire connector (NN) onto the
prongs inside the power supply (31.Use a small screwdriver to push the connector onto the prongs until it is
seated. Slide the turbine alternator ( l a ) onto the power
supply, being sure t o align the coupling between the
power supply and the turbine alternator housing. Then
twist the turbine alternator clockwise to lock the
coupling.
. . .
.. .
.,.~. ..
Install the power cartridge (1) in the gun handle as instructed at left.
...
Lightly lubricate the O-rings (lb, 3a. 3c) on the new
power cartridge with petroleum jelly.
. . .,..,.
,...
~
Insert the new power cartridge (1 in the gun handle. Fig
19 shows the alignment of the power cartridge in the
gun handle.
Install the gasket (4) in the gun handle. Install the gun
housing in the handle. See page 13.
KEY
1
32
Power Cartridge
Gun Handle
32
.. . . .
1
Fig 20
..
Fig 19
307-706
.15
Fan Air Valve Replacement (See Fig 21)
Turn the fan adjusting knob (EE) fully clockwise.
Place a wrench on the flats of the air valve housing (47)
and remove it from the handle (32).
i
Remove the retaining ring (39). Rotate the air adjusting
screw (48) clockwise until it is disengaged from the
valve housing threads. Pull the adjusting screw out of
the valve housing.
Clean all parts and inspect for wear or damage. If
replacing the seal (40). unscrew it counterclockwiseand
remove it from the adjusting screw.
Apply thread locking compound, such as Loctite" No.
609.
to the small threads on the end of the adjusting
screw (48)and install a new seal (40). Remember, the
screw has a left hand thread.
Remove the old O-ring (46) from the screw (48).
Lubricate the new O-ring and the threads of the screw
(48)with petroleum jelly. Screw the screw into the air
valve housing (47).
1.:
i
.. ..::
,.;:
.
. . .....,
~
..,;..
..:
.
"
Install the retaining ring (39)on the adjusting screw
(48).Back the adjusting screw out of the valve housing
(47) until it bottoms out against the retaining ring (39).
Apply PTFE taDe to the threads of the valve housino
(47) and install in the gun handle (32).Torque the h o u g
ing t o 1.1-1.4 N m (10-12 in-lb).
KEY
Air Valve Replacement (See Fia 2 2 )
Use a screwdriver to remove t h e retainer (57), spring
( 5 5 ) and air valve ( 5 4 ) .
Use wrench ( a b ) to unscrew and remove guide (52)
and packing (53)from the front of the gun handle (32).
CAUTION
is compatible with the fluid being sprayed, such as
xylol or mineral spirits. Using conductive solvents
.
..
.
Apply PTFE tape to the threads of the guide 152). Install the packing and guide in the front of the gun
handle. Tighten the guide finger tight.
Install a new air valve ( 5 4 ) and spring ( 5 5 )in the back of
the gun handle. Apply petroleum jelly to the threads of
the retainer (57) and the O-ring (56).Install the retainer
in the back of the gun handle and tighten with a'
screwdriver.
Tighten the guide into the front of the gun handle.
Squeeze the trigger and tighten the guide just until the
valve ( 5 4 ) will not return when the trigger is released.
Then loosen the guide just enough so the valve stem
returns freely when the gun is triggered and released.
u
Fig 22
. .. ..
i
i
16
307-706
!
ES ON-OFF Valve Removal and Repair (See Fig 2 3 )
Loosen and remove the nut (49). Remove the lever (51)
and the wave washer 150). Push on the end of the valve
stem t o force the valve out of the gun handle. If the valve
is hard to remove, insert the hex head wrench (63e) in the
hex end of the valve and turn t o loosen the valve.
Clean and inspect parts for wear or damage, replacing
parts as necessary.
. .
.. . ....
.:.
i . 2 . . ~,
. . ..
Lubricate the O-rings (37) and valve 138) with petroleum
jelly. Install the regulator disc (2) in the valve so the
beveled face of the disc faces in toward the valve.
Install the valve with the regulator disc and O-rings into
the gun handle so the larger opening of the valve
cylinder faces toward the front of the gun handle.
Install the wave washer (50). lever (51) and nut (49) on
the valve stem. Torque the nut to 0.225 N m (2 in-lb).
Muffler, Check Valve a n d Inlet Filter Replacement
(See Fig 24)
Unscrew and remove the fluid inlet fitting (25).
.. . .:
. .....
::;4
. ,...,,.. ...:.
Fig 23
:,
:.
.... , .,.,.:
I:,....
, .~.,.
Remove the screw ( 2 2 ) . Be sure the flats of the adapter
(24) and the flats of the air inlet fitting 132a) are properly
aligned with the bracket (28). then remove the bracket
and bulkhead retainer (75) from the gun handle (32).
. .
Pull the muffler (33)out of the gun handle and install a
new muffler in its place.
Insert a 3.18 mm (0.125 in.) rod into the hole in the retainer (29) and pry the retainer out of the tiracket (28).
BE READY TO CATCH the ball (31) and spring (30)
which will come out when the retainer is removed.
Install a new ball and spring in the bracket (28). Snap
the retainer (29) back into the bracket (28).
Attach the bracket ( 2 8 ) and bulkhead retainer (75) t o the
gun handle with the screw (22).
Install a new filter (26) in the adapter (24). Reinstall the
fluid fitting (25). There wi//be a small space between the
hexes of the fitting and adapter; do not overtighten
them.
KEY
20
P
24
26
26
28
29
30
31
32
3Za
33
75
FF
. . ..
Fluid Tube
Screw
Adapter
Fluid Inlet Fining
Fluid Filter
Bracket
Retainer
Spring
Ball
Gun Handle
Air Inlet Fitting
Muffler
Bulkhead Retainer
Fluid Tube Connector
Fig 24
307-706
17
Part No. 218-668. Series B
Model PROAA4000 Gun
ReDair Kit 218-752
Mist be purchased separately
r 37*
I
i
Includes:
Ref No.
lb
2
3a
3c
4
13a
20a
37
56
Qty
1:.
2
1
1
1
1
1
2
2
1
. .'
,
!
1
II .. ,. ':':.
~,
,:i:
.
i.
Ba-APPLY LOCTITE"
601-21 TORQUE TO
I+;...:
.
c.,
I
i
!
I
1
~
I
!
~
I
!
1
i
I
1i
I
!
(,
j
!
,
,
'.:
..
.. .
PARTS LIST
Part
REF
NO.
1
la
lb
2
3
3a
3b
3c
4
5
9
11
12
13
No. 218-668, Series B
PART
NO.
218-111 POWER CARTRIDGE
Includes items la ti 3
217-591 .ALTERNATOR
Includes replaceable item l b
VO7-106 ..O-RING: buna-N
"107-107 REGULATOR, disc
218-041 POWER SUPPLY, ES I75 KV)
Includes replaceable item
3b. 3c
"106-555 .O-RING: fluorocarbon
178-504 .SPRING
'1771%
.O-RING: Viton'
~
19
20
2Oa
21
22
24
25
26
'179-387
....
179-790
180-684
218-695
220-535
**219-411
176-938
181-183
218-713
'164.769
105-689
180-624
29
30
180-728
180-706
205-264
181-380
180-621
108-046
32
218-716
32a
33
34
37
179-400
180-623
104-765
*103-648
181-326
105-681
28
31
38
39
40
41
42
43
44
45
~~~
~
3a.
13a '164.769
14
220-613
17 "218-697
17a
ON
DESCRIPTION
101-435
181.383
100-172
107-414
180-763
218-179
107-100
1
1
2
1
1
1
1
1
1
GASKET^ hotlainn
-~
~
LABEL. warning
HOUSING, gun
NUT, retaining, air cap
AIR CAP; See below for other air
caps
SPRAY TIP, 0.279 mm (0.011");
Includes item 13a; See page 21 tor
other tips
.WASHER
HOUSING, ball seat, includes resistor
NEEDLE. fluid
lncludes.item 17a
.NUT, adjustment (front)
TRIGGER
TUBE, fluid
Includes item 2Oa
.WASHER
NUT, mach, hex: M4x0.7
SCREW, mach, cross pan head;
M5x 12
ADAPTER, filter
CONNECTOR, fluid
FILTER, tip
BRACKET
RETAINER
SPRING, compression
BALL, bearing
HANDLE, gun
Includes item 32a
.FITTING, air inlet
MUFFLER
PLUG, pipe; hdls: 1/8-27 npt
O-RING: Viton
VALVE, air
RING, retaining, external
SEAL, valve; acetal
BALL: 3/16" diameter
SPRING, compression
RESTRICTOR
LIGHT, sensor
CAPSCREW, hex socket head;
M5x 12
HOW TO ORDER REPLACEMENT PARTS
1
1
1
1
1
1
1
REF
NO.
46
47
48
49
50
51
52
53
54
55
56
-103-557
180-713
180-714
181-328
102-268
181-327
180-735
O-RING:
Vitnn
...
......
57
58
215890
107-029
103-338
179-391
180-060
59
62
180.063
180-209
63
220-614
63a
mil
63c
63d
63f
1
63g
75
76
1
70
1
DESCRIPTION
'106901
1
1
2
PART
NO.
n
105749
177-732
181-095
183-107
107-460
218-751
180-143
177-128
107-4133
179791
ON
HOUSING, valve, air
SCREW, adjusting
NUT, cap: No. 10-32. nylon
WASHER, wave
LEVER, valve
GUIDE, s
O-RING; PTFE
VALVE, air
SPRING, cornpression
O-RING; Viton
RETAINER, spring
SIGN, warning, English (not shown)
See page 21 for other languages
SIGN, warning, Spanish (not shown)
COVER, gun (not shown)
KIT^, tnnl
....
-.
"
Includes items 6 3 a - Q
.BRUSH, cleaning
.WRENCH
.TOOL. pressing
.WRENCH, ball seat housing
.WRENCH, barrel
.ELECTRODES, box of 10
RETAINER, bulkhead
SPACER
SCREW, trigger
TAG, warning (not shown)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2'
2
1
*Included in Repair Kit 218-752 (see page 181.
'"Recommended "tool box" spare parts. Keep on hand to
reduce down time.
1
When servicing, use only original Graco replacement parts. Use of other parts could impair the
grounding continuity of the gun.
1
1
1
1
1
1
1
2
1
1
1
2
2
2
2
2
1. To be sure you receive the correct reolacement Darts.
kit or accessories, always give all of the information
requested in the chart below.
ON
PART DESCRIPTION
. ... .
.... . .
WARNING
AIR CAPS
Must be ordered separately. Restrictor Kit, part no.
220-493 (see below), must be ordered and installed
when using these air caps.
Part No. Description
220-536 Fine finish air cap (no pattern control)
220-537 High solids air cap
High Air Flow Restrictor Kit 220-493
Must be purchased separately. Includes:
Ref No. Part No. Description
100
101
102
179-994 RESTRICTOR
107-414 SPRING, cornpression
100-172 BALL; 3/16" diameter
Qtv
2
2
2
,
2. Check the parts list t o identify the correct part number;
do not use the ref. no. when ordering.
3. Order all parts from your nearest Graco distributor.
6 digit
PART
NUMBER
. . .
.....
. . . ...
.......
1
1
1
1
1
1
1
:
I
307-706
19
.
~
A C C E S S O R I E S ( M u s t b e purchased separately)
The accessories in this section have n o t been
tested by Factory Mutual.
1O:l M O N A R K P U M P 217-523
66 bar (950psil MAXIMUM WORKING PRESSURE
WALL BRACKET 206-220
CART 208-210
PUMP SUCTION HOSE 214-960
PAIL SUCTION TUBE 165-767
D R U M SUCTION TUBE 206-266
FLUID FILTERS
HIGH VOLUME AIR REGULATOR 206-199
0-9 bar (0-125psi) Regulated Pressure
14 bar (200psi) Steel Pressure Gauge.
See instruction manual 306-972.
PAINT RESISTANCE METER 722-886
Used with 722-860 measure resistance of paint. See
instruction manual 307-263.(Not for use in hazardous
areas;)
AIR PRESSURE REGULATOR 104-267
20 bar 1300 psil MAXIMUM WORKING PRESSURE
STAINLESS STEEL SCREENS
0-14 bar (0-200psi) range
167-024
167-025
167-026
167-027
595 micron (30mesh)
250 micron (60meshl
149 micron (100 mesh)
74 micron (200mesh)
FILTER DRAIN VALVE 210-659
350 bar (5oOo psi) MAXIMUM WORKING PRESSURE
FLUID SHUTOFF VALVE 210-657
350 bar I S O W psi1 MAXIMUM WORKING PRESSURE
.:... ... ::,
AIR PRESSURE GAUGE 101-180
AIR LINE FILTER
17.5bar I250 psi) MAXIMUM WORKING PRESSURE
106-148 3/8npt(f)
106-149 1/2npt(f)
AIR LINE LUBRICATOR
17.5 bar 1250 psi) MAXIMUM WORKING PRESSURE
. . ..
214-847 3/8npt(f)
214-848.112npt(f)
FLUID PRESSURE REGULATOR 217-576
70 bar lloyxl psil MAXIMUM WORKING PRESSURE
ELECTRODE WIRES 218-751
Box of 10 replacement electrode wires for the spray
tip.
PARTS TO CONVERT STANDARD FLUID
PRESSURE REGULATOR 206-661
TO 70 bar (1000psi) WORKING PRESSURE
GUN COVERS 218-374
Package of 10 disposable gun covers.
C O M P R E S S I O N SPRING 501-511
*FLUID PRESSURE GAUGE 101-696
0-70 bar (0-1000psi) range
., ,
..
PAINT PROBE 722-860
Used with 722-886 paint resistance meter to measure
resistance of paint. See instruction manual 307-263.
(Not for use in hazardous areas.)
207 bar (361x)psil MAXIMUM WORKING PRESSURE
214-510with aluminum bowl and support.
218-029 with carbon steel bowl and support. -.
. .
.
. .
MEGOHMMETER 216-979
500 Volt output; 0.01-2000megohms
230-987 ELECTROSTATIC SYSTEM
Includes items:
218-668 Manual E/S Air-Airless Spray Gun
218-101 Grounded Air Supply Hose, 7.6m (25’1
214698 Static Free Fluid Hose, 7.6m (25’)
106-148Air Filter
P R O A A W 1O:l MONARK CART SYSTEM 230-984
Includes system 230-987
P R O A A W 1O:l MONARK PAIL SYSTEM 230-985
Includes system 230-987
PROAA4000 1O:l MONARK WALL M O U N T
SYSTEM 230-986
Includes system 230-987
20
307-706
,. ..
ACCESSORIES ( M u s t b e purchased separately)
The accessories in this section have been tested
b y Factory Mutual.
STATIC FREE FLUID HOSE, Nylon
207 bar 13ado psi) MAXIMUM WORKING PRESSURE
Nylon tube, Urethane cover
WARNING
I
Never operate your equipment at .a working
pressure rating that is higher than the lowest rated
component in your system. Lower rated components may not be able to withstand the
pressure developed by the pump and may rupture,
causing serious bodily injury or property damage.
GROUNDED AIR SUPPLY HOSE, Polyurethane
7 bar (1Wpsi) MAXIMUM WORKING PRESSURE
6.35rnm (0.25 in.) ID, 1/4 npsm(fbe)
218-100 5 m (15 f t ) Air Supply Hose Assembly
218-101 8 m (25 f t ) Air Supply Hose Assembly
218-102 11 m (36f t ) Air Supply Hose Assembly
218-103 15 m ( 5 0 f t ) Air Supply H,ose Assembly
220-119 23 m 175 f t ) Air Supply Hose Assembly
220-120 30.5 m (100 f t ) Air Supply Hose Assembly
Part
No.
ID
214-700
214701
214-699
214698
214697
214-638
214635
214-636
4.8 mm 13/16) 0.61 m.l2 ft)
4.8 mm (3116" 0.91 m 13 ftl
4.8 mm (3/16") 1.8 m (6 f t l
4.8 mm (3116) 7 . 6 m (25 ft)
4.8 mm (3116") 115.2 m ( 5 0 f t )
6.4 mm 1114") 0.36 m (14 in.)'
6.4 mm (114") 0.61 m (2ftl
6.4 mm 1114") 0.91 m 13 ft)
Thread
Size
Length
214-629 6.4 mm (114") 4.6 m 115 f t l
210510 6.4 mm (114") -7.6 m 125 ftl
210.541 6.4 mm (114") 15.2 m 1 5 0 ftl
114 npsm(f1
114 npt(mxf)
114 npsm(f)
114 npsmlf)
114 npsmlfl
114 npsmlf)
114 npsm(f1
114 npsm(f) x
114 nptlm)
114 npsm(f)
114 npsmlf)
114 nosmlf)
WARNING SIGNS
180-060 Warning Sign (English)
180-061 Warning .Sign (French)
180-062 Warning Sign (German)
180-063 Warning.Sign (Spanish)
SPRAY TIP SELECTION CHART
I
'Light to
Size
1.013
1.015
,017
1
14-6 Il00-150)/
6-8 1150-2001
8-10 G!00-250)
10-12 (250-300
12-14 DCO-350
13.0
10.41
4-6 (100-150)
6-8 1150-2001
8-10 1 2 0 0 - w ) l
10-12 1250-3001
12-14 (300-3501
17.0
(0.51
4 6 1100-1501
22.0
(0.7)
17.0
10.51
28.0
(0.8)
21.o
10.6)
6 8 (150-200)
8-10 I M O - 2 5 0 )
6-8 1150-200)
8-10 ~200-250)
10-12 (250-300)
12-14 (300-350)
14-16 1350-400)
Fan Width
a t 12"
Part
Number
Size
(inches)
219.209
219-309
219-409
0.021
219-211
219-311
219-411
219-511
219-611
8-10 (200-2501
10-12 (250-3001
12-14 (300-350)
14-16 1350400)
16-18 ~ 4 0 0 - 4 6 0 1
0.023
219-213
219313
219413
219-513
219-613
6-10 (200-250) . . 40.0
10.12 (250-3001 11.2)
12-14 1300-350)
14-16 (3504001
16-18 1 4 0 0 - 4 6 0 )
0.025
8-10 1200-250)
10-12 (250-300)
12-14 (300-3501
14-16 (350-400)
16-18 l400-4601
-
219-215
219-315
219-415
219-515
219-615
10-12 1250-3001
12-14 (300-350)
,019
Orifice
*Light t o .
Medium
'Heavy
Viscosity Viscosity
flozlmin flozlmin
Inches
219-217
219-317
219-417
219-517
219-617
-
219-319
119-419
219-519
219-619
219-719
I
Part
3
I0
0 mml (literslminl (litars/minl Number
35.0
(1.01
.
50.0
(1.5)
I
27.0
219-421
219-521
219-621
219-721
219-821
34.0
(0.97)
219-423
219-523
219-623
219-723
219-823
42.0
(1.21
219-425
219-525
219-625
219-725
219-825
(0.81
I
I
'Fluid Output at 600 psi 141 bar).
I
The fluid output la) a t other pressures (PI can be calculated
by this formula:
Q = 10.041) (QT) 1 \ I p ) .
Where QT = Fluid output If1ozlminl from the above table for
the selected orifice size.
NOTE: Other tips are available on special work order. Allow
4 to 6 weeks for delivery. Maximum orifice size is
0.025".
307-706
21
SERVICE INFORMATION
Listed below by the assembly changed are OLD, NEW,
ADDED and DELETED parts.
REF PART
NO. NO.
ASSEMBLY PART
CHANGED STATUS
218-1338
Spray Gun
OLD
NAME
218-715 Air Cap
12 220-535 Air Cap
218-686 Housing
14 220-613 Housing
59 180-063 Sign
63 218696 Kit
63 220-614 Kit
78 179-791 Tag
NEW
OLD
NEW
ADDED
DELETED
ADDED
ADDED
INTERCHANGEABILITY NOTE: The NEW parts replace
the OLD parts listed d i r e c t l y above them. ADDED and
DELETED parts are not interchangeable.
AIR CAP NOTE: Fine Finish Air Cap 220-536supersedes
220-378. High Solids Air Cap 220-537 supersedes
220-379. See page 19.
_.
TECHNICAL DATA
Weight :0.87 Kg (1.90 Ib)
Gun length :310 mm (12.25 in.)
Ooeratino
ranoe
: 0-75 Kv
" voltaae
~"~
"~~~
Operating fluid pressure: 0-66bar 10-950 psi)
Operating air pressure :0-7 bar (0-103 psi)
Fluid inlet: 114-18.6(m)
Air inlet: 114 npsmlm) L.H.
Wetted parts: Stainless Steel, Acetal,
UHMW Polyethylene, Nylon,
Carbide, PTFE , Delrin"
~~~
V
~~
~
~
~~
TFE and Delrin" am
Company.
~~~
registered trademarks of the
Loctite" is a registered trademark of the Loctite Corporation,
THE GRACO WARRANTY AND DISCLAIMERS
WARRANTY
Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale
by an authorized Graco distributor to the original purchaser for use. As purchaser's sole remedy for breach of this warranty. Graco will, for a
period of twelve months from the date of 6818, repair or replace any pan of the equipment proven defective. This warranty applies only when tha
equipment is installed, operated and maintained in accordance with Graco's written recommendations.
.
.
This warranty does not cover, and Graco shall not be liable for, any malfunction, damage or wear caused by faulty installation, misapplication,
abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of no&Graco component pans. Nor
shall Graco be liable for malfunction. damaoe or wear caused bv the incamaatibilitv
r a m~antoinmnnt
i ens~ i n .
~ ~ ~with
~ G~
. . , nf s t m o ~ t o w ~ ~l r ~ e ~ s n r c
ment or materials not supplied by Graco,>r the improper design, manufacture, installation, bperation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
~
_._.
~~
This warranty is conditioned upon the prepaid return of tha equipment claimed to be defective for examination by Graco to verify the claimed
defect. if the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the
original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be
made at a reasonable charge, which charges may include the the costs of parts, labor and transPonation.
DISCLAIMERS AND LIMITATIONS
EQUIPMENT NOT COVERED BY GRACO WARRANTY
GRACO MAKES NO WARRANTY, AN0 DiSCLAlMS ALL lMPLiE0 WARRANTiES OF MERCHANTABILITY AND FITNESS FOR A PARTiCULAR PURPOSE, WiTH RESPECT TO ACCESSORIES, EQUIPMENT. MATERIALS, OR COMPONENTS SOLD.BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco lsuch as electric motor, switches, hose. etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of thase warranties.
Factory Eranchee:Atlanta. Dallas. Detroit. Los Angeles. West Caldwell IN.J.1
Subsidiary and Affiliate Companies:Canada: England: Switzerland; France; Germany; Hong Konu; Japan
GRACO INC.
P. 0. Box 1441
PRINTED IN U S A .
MINNEAPOLIS, MN
3
0
7
.
7
0
6
1284 Revised 1086
55440-1444

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