Graco 307706F Mid-Ranae Electrostatic AIR-ASSISTED AIRLESS SPRAY GUN Owner's Manual

INSTRUCTIONS-PARTS LIST
307-706
ORPCO
This manual contains IMPORTANT
WARNINGS and INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
Rev F
SUPERSEDES E
Manual Mid-Ranae Electrostatic
AIR-ASSISTED AIRLESS SPRAY GUN
@3bar (950psil MAXIMUM WORKING FLUID PRESSURE
7 bar (1dD psil MAXIMUM WORKING AIR PRESSURE
Model PROAA4000TM
Part No. 218-688, Series B
Includes a 219-411 0.279 mm (0.011 in.) spray tip
@pJj
+lL
Approved
GRACO INC. P.0. BOX 1441 MINNEAPOLIS, MN 55440-1444
@COPYRIGHT 1984. GRACO INC.
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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 end Cleaning Safety
3
Ventilate the Spray Booth
3
Hose Safety
3
INSTALLATION
Typical lnstelletlon Drawing
4
Ventilate the Spray Booth
6
Connect the Air Line
6
Check the Electrical Grounding
6
Connect the Fluid Line
6
_.
Warning Signs
6
OPERATION
Operation Checklist
6
Filter the Fluid
6
lnstell the Spray Tip b Adjust the Spray Pettern.6
Spraying Operation
7
Cleaning
7
Rushing
7
SERVICE
Troubleshooting
8
Electrlcel Tests
10
Gun Repair
12
Electrode Wire Replacement
12
12
Bell Seat Housing 8 Reslstor Replacement
Gun Housing Removal
13
Gun Housing Reassembly
13
Fluid Needle Replacement
14
Power Cartridge Replacement
16
Turbine Alternator Removal...
16
Fen Air Valve Replacement
16
Air Valve Replacement
.,.16
ES ON-OFF Valve, Replacement
17
Muffler, Check Valve end Inlet Filter
Replacement
..17
PARTS DRAWING b LIST
18, 18
HOWTO ORDER REPLACEMENT PARTS
19
ACCESSORIES
SPRAY TIP SELECTiON CHART..
21
TECHNICAL DATA..
Beck Cover
WARRANTY.
Beck Cover
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TERMS
Be sure you read and understand each of these terms
before reading the rest of the manual.
FOR YOUR SAFETY Alerts user to read the additional safety
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
fluid directly into the body.
CAUTION Alerts user to avoid or correct conditions which
could cause damage to or destruction of equipment.
PRESSURE RELIEF PROCEDURE A safety procedure for
. relieving air and fluid pressure in the system.
ES ON-OFF VALVE An on/off switch located near the rear of
the oun. above the oun handle. which turns the electrostatic
power
on Or
Off.
"
HOW THE ELECTROSTATIC (ES) AIR-ASSISTED AIRLESS SPRAY GUN WORKS
This gun combines electrostatic air spray and airless
spraying concepts. The air has three functions: ( 1 ) to
drive the turbine, (2) to help atomize the paint "tails",
and (3) to help control the pattern size.
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.
The spray tip shapes the fluid into a fan pattern, similar
to a conventional airless spray tip, but at a iower
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 +assisted airless spray gun differs from
the conventional air spray gun in that increasing the
fan sir reduces the pattern width. To Increase the pettern
less
fan airor a larger size tipmUe
be
307-706
1
SERIOUS BODILY INJURY, EXPLOSION, FIRE, OR ELECTRIC
SHOCK CAN OCCUR IF THE PRECAUTIONS BELOW ARE NOT
FOLLOWED.
i
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
Generel 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 extremely
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 et any part of the
body. NNER put hand or fingers over the spray tip. NNER
try to "blow back" paint; this is NOT an air spray system.
Medlcel Alert-Airless spray Wounds
If any fluid appears to penetrate your skin, get EMERDENCY
MEDICAL CARE AT ONCE. DO NOT TREAT AS A
SIMPLE CUT. Tell the doctor exactly what fluid wes injected.
Nots to Physlclen: lnj8ction in the skin is a traumatic injuty.
It Is Important t o treat the lnlurv surglcelly es soon 88
possible. Do not del8y treatment to research toxicity. Toxicity is a concern with some exotic coatings injected direct&
into the blood stre8m. Consult8tionwith 8 plastic surgeon or
reconstructive hand surgeon may be advisebla.
ALWAYS follow the Pressure Relief Procedure, at right,
before cleaning or removing the spray tip or servicing any
system equipment.
NEVER try to stop or deflect leaks with your hand or body.
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including fluid injection, injury from moving pans, 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 pan
of the spray system, when installing, cleaning or changing
spray tips, and whenever you stop spraying.
Spray Gun Safety Devices
Be sure a11 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.
1. Engage the gun safety latch.
2. Turn the ES ON-OFF valve lever to OFF.
3. Turn off air and fluid supply to the gun.
4. Disengage the gun safety latch.
5. Trigger the gun into a grounded metal waste container to
relieve fluid pressure.
6. Engage the gun safety latch.
7. Open the pump drain valve, having a grounded metal waste
container readv. 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 gradual&, then loosen
completely. Now clear the tip or hose.
Be sure equipment safety devices are operating properly
before each use.
Safety Latch
Whenever you stop spraying, even for a moment, always sei
the gun safety latch in the closed or "locked"position, making
the gun inoperative by depressing the safed 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
SAFETY LATCH
1I
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SHOWN IN CLOSED
OR " LOCK
POSITION
~~
SHOWN IN OPEN
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 Rellef Procedure, at right,
and then remove the spray tip. Aim the gun into a grounded
metal pail. With the ES ON-OFF valve lever turned to OFF, and
using the lowest possible pressure. trigger the gun. If the fluid
emitted is not diffused into an irregular stream, replace the diffuser immediately.
Spray Tip Safety
use extreme cautlon when cleaning or changing spray tips. If
the spray tip clogs while spraying, engage the gun safety latch
immediately. ALWAYS follow the Pressure Rellef Procedure and then remove the spray tip to clean it.
NNER wipe off build-up around the spray tip until pressure is
fully relieved and the gun safety latch is engaged.
2
307-706
~~
1
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Bleed-Type Air Shutoff Velve end Fluid Drain
Velve Required
These two accessories ere 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.
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The bleed-type air shutoff valve relieves air trapped between
this valve and the pump after the air regulator is shut off. Trapped air can cause the pump to cycle unexpectedly. 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 sufficlent.
!
EQUIPMENT MISUSE HAZARD
General Safety
Any misuse of the spray equipment or accessories. such as
OverDressurizina. modifvino Darts, using incompatible
chemicals and fiuids,
or usirig worn or damaged parts, can
cause them
ruptureand
influid injection
or other
senous bodily injury, fire. explosion or propetty darnage.
NEVER alter or modify any part of this equipment; doing SO
could cause it to malfunction.
This gun has a maximum working pressure of 66 bar
1950 psi). Never exceed the maximumworking pressure of the
oun or anv other comoonent
or aCCassxm
.
. used in the svstem.
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Read and follow the fluid and solvent manufacturer's literature
regarding the use of protective clothing and equipment.
CHECK all spray equipment regularly and repair or replace
worn or damaged parts immediately.
FIRE OR EXPLOSION HAZARD
6. Allpersons entering the spray area: shoes must have conductive 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
to modify the glove.
7. The floor o f thespray area must be electrically conductive
and grounded. Do not cover the floor with cardboard or
any non-conductive material which would interrupt
grounding continuity.
9. Flammable liquids in the spray area must be kept in approved, grounded containers. Do not store more than the
quantity needed for one shift.
9. Allsolventpails: 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.
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
end result in serious bodily injury and prop03 damage.
If you experience any sparking or feel even a slight shock,
STOP SPRAYING IMMEOIATELY. Check for Proper grounding of the entire system. Be sure you tiave 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 e ground wire and clamp as
described in your separate pump instruction manual.
flushing and Cleaning Safety
To reduce the risk of a fluid injection injury, static sparking, or
splashing, always follow the Pressure Rellaf Procedure on
page 2 and remove the spray tip before flushing. Use lowest
possible pressure and use a grounded metel waste container.
2. Air compressors and hydraulic power supplies: ground
according to the manufacturer's recommendations.
3. PROAAgun: obtain grounding through connection
to a properly grounded air supply hose. Use only the
GRACO GROUNDEDAIR SUPPLY HOSE; seepage21 to
order. Connect the air hose ground wire to a true earth
ground.
4. Object being sprayed: keep workpiece hangers clean and
grounded at all times. Contact points must be sharp
points or knife edges.
5. All electrically conductive objects in the spray area must
be properly grounded.
Be sure the ES valve lever is OFF during flushing.
NEVER use solvents having a flash point of less than 21°C
170OFl to clean the gun. N N F R use solvents having a flash
point of less than 38OC (1W0Fl to clean the spray system.
ALWAYS remove all solvent from the system before reactivating the spray gun.
Use only non-sparking twls to clean residue from the booth
and hangers.
Ventllate the Spray Booth
To prevent hazardous concentrations of toxic andlor flammable vapors, sprey only in a properly ventilated spray booth.
NWER operate the spray gun unless the ventilating fans are
operating.
HOSE SAFETY
Highly pressurized fluid contained in the hose can be very
dangerous. If the hose develops a 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 propetty darnage.
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
1180°F) or below - 4 O T ( - 4 O O F ) .
IMPORTANT
United States Government safetv standards have been adooted under the
Safetv
and Health Act. These standards-nar. . Occunational
.
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ticularly the General Standard5,~Part1910.107 and any other appropriate regulations-should be consulted in connection with thhnstallation, operation and maintenance of electrostatic spray painting equipment.
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307-706
3
INSTALLATION
TYPICAL INSTALLATION
II
NON-HAZARDOUS LOCATION
Air Supply To Gun Must Be interlocked
With Spray Booth Exhaust Fan
KEY
A Main Air Supply Line
B
C
D
E
F
0
H
J
K
L
M
Ventilation Fan Interlock Solenoid Valve
Main Air Supply Shutoff Valve (bleed-type)
Air b Water Separator
Pump Air Supply Shutoff Valve (bleed-type)
Air Line Lubricator
Air Pressure Regulator
Air-Assisted Airless Pump
Pump Ground Ware
Fluid Filter
Fluid Supply Line Shutoff Valve
Fluid Pressure Regulator
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.
I
4
LIJ
HAZARDOUS LOCATION
N
0
P
Fluid Supply Line
Air Filter
Air Supply Line Shutoff Valve (bleed-type)
Q Spray Gun Ground Wire
R Grounded Air Supply Hose
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
The pump you use should have a maximum working
pressure of 66 bar (950 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 PumD. Part No. 217-523.
---,
may be used in this system. See Accessories.
~~
lnstalllng and servicing this equipment requires access to parts which may cause electric shock or other serious
bodily injury. Do not install or service this equipment unless you are trained and qualified.
307-706
I
Ventilate the Spray Booth
WARNING
To prevent hazardous concentrations of toxic
andlor flammable vapors, spray only in a properly
ventilated spray booth. NEVER operate the
spray gun unless the ventilation fans are
operating.
1. Modify the operator's glove, if used, so that the
Operator's hand will not be insulated from the spray
gun handle. Sea Fig 1.
Check and follow all of the National, State and
Local codas regarding air exhaust velocity
requirements.
Check and follow all local safety and fire codes.
Checkand follow OSHAstandard 191@107(b)(5)(i).
NOTE:
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
metedminuta 1100-150 ftlmin) should be
sufficient.
-.
r
Connect the Air Line ISae Typical Installation)
WARNING
To reduce the risk of electric shock or other.
serious bodily injury, the Air Supply Hose must
be electrically connected to a true earth ground.
Use Only Graco Electrically Conductive Air
Supply Hose. This hose and the gun have spacial
'threads which prevent using any other type of
hose with the gun. See the Accessories section
for ordering the hose.
1. Connect the air supply hose (R) between the air
supply line and the gun's air inlet K C ) . Connect the
ground wire to a true earth ground.
2. Install an air filter (0)
and an air and water separator
(Dl on the air line to ensure a dry, clean air supply to
the gun. Dirt and moisture can ruin the appearance
of your finished workpieca and can causa the gun
.to malfunction.
3.
2. Hava a qualified electrician check the electrical
Also install an air regulator (GIon the pump and
gun air supply lines to control air pressure to the
pump and gun.
a.
NOTE:
With the air hose connected and properly
grounded, use a megohmmater (AA) to
measure tha resistance between the gun handle
(BE) and a true earth ground (PP), using an applied voltage of 500 volts minimum to 1WO
volts maximum. .See Fig 2.
If the air hose is not grounded. you will gat a
false reading.
b. If the resistance is greater than 2 megohms,
check the tightness of the ground connections,
and be sura the air supply hose ground wire is
connected to a true earth ground. If the
resistance is still greater than 2 megohms,
replaca the air supply hose.
Connect the Fluld 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 to 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 (VI at the
pump outlat. The drain valva 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.
Install an air line lubricator (F) close to the pump.
4. Connect the fluid line to the 114-18.6(m)
gun fluid
inlet IDD).
5.
Install a bleed-type air shutoff valva (C, E 8 P) on
the main air line and the pump end gun air supply
lines to shut off air to the pump and gun. See
Bleed-type Alr Shutoff Valve and Fluld Drain
Valve Required, page 2.
Warnlng Signa
An English and a Spanish warning sign is supplied with
the gun. Mount these signs in the spray area where they
can easily be saen and read by all operators. This sign is
elso available in French and German. See the Accessories section on page 21.
Check the Electrical Grounding
WARNING
system is essential. For your safety, read the
warning section FIRE OR EXPLOSION
HAZARD on page 3. Than ground the system as
Megohmmeter
Gun Handle
TN~
Eanh Groun
-
OPERATION
VERTICAL SPRAY PAlTERN
HORIZONTAL SPRAY PAITERN
the system, when you stop spraying, and before
checking, servicing, installing, cleaning or changing any part in the system.
.
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.
Operatlng Checkllst
Check the following list daily, before starting to operate
the system, to help assure you of safe efficient
operation.
-1.
Fig 3
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 page 3,
and Check the Electrical Groundlng on page
'
5.
.
. .
-4.
Be sure the operator and all persons entering the
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.
-5.
Be sure ventilation fans are operating properly.
-6.
Be sure the workpiece hangers are clean. Contact points must be sharp points or knife edges.
-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.
Filter the Fluid
Filter the fluid to be sprayed to remove coarse particles
and sediment which could clog the spray tip.
Install the Spray Tip E, 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 (13) in the air cap (12). aligning the tab
of the tip with the groove in the air cap. Be careful
not to damage the electrode wire (GG). Place the
air cap assembly on the gun. Screw on the retaining
nut (11) firmly to prevent leakage between the tip
and ball seat housing (141. 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 sura
the electrode wire is properly installed in the gun
(see page 12) end is not bent or damaged before
operating the gun.
6
307-706
NO AIR
TOO LIITLEAIR
Fig 4
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RIGHTAMOUNT
OFAlR
.
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KEY
11
12
IS
44
T
EE
00
Retaining Nut
Air Cap
spray np
ES Indicator Ught.
ES ONlOFF Valve Lever
Fan Adjuning Knob
Electrode Wlrn
3. Adjust the fluid pressure. Turn on the fluid to about
21 bar (300 psi). Trigger the gun to check the
atornitstion; 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 (9M) psi) fluid pressure.
4. Turn the ES ON-OFF valve lever (TI to
Fig 5.
ON. See
5. Be sure the fan adjusting knob (EE) is fully closed
(turned all the way counterclockwise).
i.
6. Set the atomizing air pressure to 3.1 bar (45 psi).
NOTE:
A minimum of 2.8 bar (40psi) air pressure to
the gun is required to drive the turbine fast
enough for maximum electrostatic effect.
7. Check the- spray pattern, then adjust the air
pressure until all the tails are completely atomized
and pulled into the spray pattern. Refer to Fig 4.
For a narrower pattern, try turning the fan adjusting
knob (EE) clockwise. If the pattem is still not narrow enough, increase the air line pressure slightly or
use a different size tip.
Spraying Operation
This gun has a built-in lead and leg 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 end assures the fluid is atomized.
When spraying, the ES indicator lights 144) should
glow, indicating electrostatic charge. See Fig 5.
CAUTION
ming it into an object when operating or setting
Cleaning
3. Clean the spray tip and air cap deik, minimum.
Some applications require more frequent cleaning.
Replace spray tip and air cap ifthey are damaged.
a. Remove the air cap and spray tip.
b.
Clean the tip end air cap with solvent and scrub
with a soft brush.
c.
Use a soft brush or other soft tool, with an air
blow gun, to clean the air cap passages. Take
care not to scretch any surfaces. If the air cap
holes era plugged, a round toothpick can be used to unplug the holes, without damaging the
air cap.
WARNING
To avoid damaging the ball seat housing resistor,
use a soft bristle brush dipped in solvent to clean
it; DO NOTsoak it in solvent1 A damaged resistor
will impair the electrical continuity and could
result in electricel discharge, which could cause
serious bodily injury, fire, or explosion.
4. 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.
CAUTION
WARNING
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.
1
Do not use metal tools to clean the air cap holes as
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.
Do not use any cleaning method which may
allow solvent Into the gun air passages. Cloggad air passages cause poor etomization and excessive current demands. Point the gun down
while cleaning to prevent dirty solvent from running back into the air passages. NEVER IMMERSE
THE GUN IN SOLVENT.
Clean all parts with a non-conductive solvent
which is compatible with the fluid being sprayed.
Conductive solvents can cause the gun to
malfunction.
Fluid lniet fining
Fluid Filter
Fig 6
1. Clean the fluid filter 1261 daily. See Fig 6.
a. Unscrew and remove the fluid inlet fitting (25).
b. Remove the filter (26)and clean thoroughly in a
compatible non-conductive solvent.
c.
I
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 svstem.
1. Be sure the ES valve lever is turned OFF during
flushing.
2. Disconnect and plug the fluid supply line.
Reinstall the filter and inlet fitting. Do not overtighten the inlet fitting, which could distort the
filter.
3. Connect the solvent supply to the gun, and run sol-
2. Clean the outside of the gun daily with a soft cloth
4. Disconnect the solvent supply, and reconnect the
fluid supply line.
dampened in a compatible solvent.
CAUTION
Be careful not to damage the electrode by catching the cloth on it when wiping off the gun.
vent through the gun.
5. Trigger the gun until it is clean of solvent.
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1n7 7-
7
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WARNING
i
1.:
Installing and servicing this equipment requires access to parts which may cause electric 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.
1.
2.
3.
4.
5.
.:
I
WARNING
Engage the gun safety latch.
Turn the ES ON-OFF valve lever to OFF.
Turn off air and fluid supply to the gun. -.
Disengage the gun safety latch.
Trigger the gun into a grounded metal waste
container to relieve fluid pressure.
NOTE:
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6. Engage the gun safety latch.
7. Open the pump drain valve, having a 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 relievad 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
PROBLEM:
IMPROPER
SPRAY~PA~~ERN
Fluttering or spitting spray
Irregular pattern
Pattern pushed to one side, same
side of air cap gets dirty
I
CAUSE
SOLUTION
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 holes on defective side
of pattern partially or totally
pbged
Clean air horn holes with solvent and soft brush.
Air horn holes partially or totally
plugged
Clean air horn holes with solvent and soft brush.
Air to gun is too low
Increase air.
Fluid pressure too low
Increase fluid pressure.
I
!
I:,..
.: .,.
, ,...
I
I
i
-
~
GUN OPERATION TROUBLESHOOTING CHART
I
Fluid leakage from front of gun.
CAUSE
I
SOLUTION
Air valve not seating properly.
Clean, service.
Air stem packing too tight.
Loosen packing.
Loose or worn fluid seat.
Tighten or replace fluid seat andlor
electrode.
I
Loose fluid tip.
"Orange Peel" finish.
Excessive spray fog.
Insufficient
air pressure.
Tighten.
Increase, use least air pressure need-
ed for good results.
Using too large of a fluid tip.
Use a smaller size fluid tip.
Fluid poorly mixed or filtered.
Remix or refilter fluid.
Improper thinner being used.
Use proper thinner.
Too nitich air pressure.
Reduce, use least air pressure needed
for good results.
Fluid thinned too much.
Properly thin fluid.
Fluid low.
Check, add if necessaw.
Broken fluid needle shaft.
Replace needle.
Ditty 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
(8-12 in.1.
1
ELECTRICAL TROU5LESHOOTING CHART
PROBLEM
CAUSE
SOLUTION
Poor wrap-around.
"ES ON-OFF valve in OFF position.
Turn valve to
*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 fluid resistivity.
Check fluid resistivity with paint
meter and probe lrefer to instruc
tion manual 307-263).
'Faulty gun resistance.
Check gun resistance. See Electrical Tests, below.
"Faulty resistor stud resistance.
Check resistor stud resistance. See
Electrlcal 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 necessaw.
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 g r o u n d d
Workpiece not properly grounded.
Clean workpiece hangers. Check for
proper ground on conveyor or
track.
Operator gets mild shock.
Operator gets mild shock when
touching workpiece.
S indicator lights not "ON" whi
ON,
Bun is triggered.
ELECTRICAL TESTS
The performance of the spray gun is directly affected by
the condition o f the electrical components contained inside the gun. The electrical tests on page 11 can be used
t o determine the condition of the power supply (3)and
the ball seat housing and resistor (14). as well as the
continuity of the electrical path between the com-
ponents.
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
Hectrical Tests continued on page 11.
NOTE:
Be sure to read the information on page 10
under Electrical Test before conducting
any of the tests below.
MEGOHMMETER
Test the 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 to
"E'on the megohmmeter. Insert the lead from the air
inlet into the second hole to the right of "L" on the
megohmmeter. 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.
l a s t the Power Supply Resistance (See Fig 8)
Remove the power cartridge 11) from the gun handle
(32). See page 15.
Remove the turbine alternator ( l a ) . from the power
supply 13). See Fig 20, page 15.
Measure the resistance between the center prong (HH)
in the power supply and the contact spring 13b) 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.
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.
KEY
32
3Za
GO
Gun Handle
Air Inlet Fitting
Electrode Wire
Fig 7
KEY
Sb
Contact Pin
HH Center Prong
Fig 8
MEGOHMMETER
MEGOHMMETER
\
,
Test Resistance of Resistor (See Fig 9 & 10)
Insert a conductive rod ( J J ) into the rear of the gun
housing (9) (which you removed in a previous test) and
press it against the contact IKK) which is molded into
the front of the gun housing.
Measure the resistance between the conductive rod
IJJ) and the gun electrode wire IGG). 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 Chert 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 ILL) in the outside
diameter of the ball seat housing (14).
Fig 9
KEY
14
Ball Seat Housing
JJ
Conductive Rod
LL
Adstor
1
I
J J - A
SEE DETAIL BELOW
The resistance should be 20-30 megohms. If the
resistance is correct, the electrode wire IGG) 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
m7 7nc
qq
Gun Repalr
-ARNING
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 the Pressure Rellef Procedure Warnlng on page 8, before servicing any
part of the gun or system.
requires
other serious bodily injury. Do not install or service
the equipment unless you are trained and,
qualified.
CAUTION
ALWAYS remove the gun from the worksite for
service or repair. The service or repair area must
be kept clean to prevent contaminating the parts
with dirt.
If the plastic parts of the gun must be held securely, ALWAYS clamp them in padded vice jaws to
prevent damage to the parts.
Ball Saet Hourlng 8 Reslstor Replacement
(See Figs 11 8 121
Unscrew the retaining nut (1 11. Remove the air cap (121
end spray tip (131.
Insert the special wrench
in the front of the gun.
While triggering the gun, unscrew the ball seat housing
(141 and remove
it.
Ifyou are replacing the fluid needle assembly, do not
reassemble the gun, Ifno 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-lbl (snug); DO NOT OVERTIGHTEN.
Ic
DO NOT overtighten the ball seat housing (14).
Excess torque will damage the housing.
KEY
14
Ball Seat Housing
63d Wrench
ALWAYS lubricate the rings and seals with petroleum jelly to prevent damage during installation.
1. Flush the gun. See pege 7. Follow the Pressure
Rellef Procedure Warnlng on page 8.
2. Disconnect the fluid supply hose from the gun inlet
f i i i n g (DDI. See the Typical Installation page 4.
3. Disconnect the sir supply line from the gun air inlet
fiiing (CCI. See the Typical Installation page 4.
KEY
Fig 11
Electrode Wire Replacement (See Fig 11 1
Unscrew the retaining nut (111. Remove theair cap (121
and spray tip (131.
Use e needle nose pliers to gently pull the electrode wire
IGGI out the back of the spray tip. Install 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
A box of 10 electrodes is included in the tool kit (63).
it.
Fig 12
!
i
Gun. Housing Removal (See Figs 13, 14 8 15)
Remove the ring nut, air cap, and spray tip. Unscrew
the fluid tube connector (FF) a t 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
( 6 3 d ) in the front ofthe gun. While triggering the gun, unscrew the ball seat housing (14)and remove it. See Fig 12.
Remove the trigger screws (77). spacers (76) and the
trigger (19). Remove the ES indicator lights (44). Then,
using the wrench ( 6 3 f ) . supplied, loosen and remove
the two socket head capscrews (451 from the gun.
Hold the gun handle (32)with one hand and pull the gun
housing 19) straight up to 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 Houslng Reassembly (See Figs 13, 14 b 15)
Ifthe 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 (91over the power cartridge (1) and position it onto the gun handle (32).
Install the two socket head capscrews (45) and tighten
with the wrench (63fl. Push the ES indicator lights (44)
into place over the capscrews (45).
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 1141 was removed, insert the
) the front of the gun and gently
pressing tool ( 6 3 ~ in
push the needle back. Then slide the trigger (191 into
place and install the spacers (76) and screws (771.
Remove the tool.
Fig 13
\
\
Fig 14
KEY
19
44
61C
72
Trigger
ES Indicator Lights
Pressing Tool
Screw
Fluid Needle Replacement (See Figs 16 & 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 ( 6 3 ~through
)
the front of the gun to push the needle back, then remove the nut (21) and the adjustment nut 117a). Press
the needle assembly (17) out the front of the gun as far as
you can with e finger, or by pressing it against a flat surface. Then use the wrench (63f)to finish pushing it out.
KEY
17
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 to trigger the gun: Look behind the
trigger to be sure it is not engaging the nut
(17a). Then engage the latch to the left and
check again. See.Fig 18.
Naadla
Fig 16
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 ( 6 3 ~ )
into the front of the gun and press to seat the needle.
Reinstall the new adjustment nut (17a1, hex end first,
onto the needle. Use the pressing tool.(63clto press on
the needle from the front of the gun, then screw the adjusting nut ell tho wey to the bottom of the threads.
Remove the tool. Screw the other nut (21) firmly
against the adjustment nut to "lock" them together.
Reassemble the gun as described in Gun Housing
Reassembly on page 13.
KEY
17a
21
E3C
Fig 17
?A NI7-7Ni
21 Disengage the trigger safety latch, and trigger
the gun gently to 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.
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 end 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.
I'ewer Cartridge Replacement (See Fig 19)
CAUTION
The power cartridge 11) is fragile. Use care when
handling it to avoid damaging it.
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.
All O-rings (lb, 3a. 3c) end the conductive spring
(3b) must be in place when reassembling the gun,
or it will malfunction.
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 e
gentle rocking motion to free it from the gun handle
(32). Then pull the power cartridge (1) straight out of
-.
the handle.
CAUTION
Be sure the power cartridge cavity in the handle
(32)is very clean and dry. Moisture and other contaminants may damage the electronic circuitry.
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.
Turbine Alternator Removal (See Fig 20)
Remove the power cartridge (1) from the gun handle as
instructed et left.
Carefully twist the turbine alternator (la) counterclockwise and pull it off the power supply, just until it is
Then continue to
disengaged from the coupling 1").
slowly pull the turbine alternator away from the power
supply, disconnecting the 3-wire connector INN).
Use an ohmmeter to test the coil in the turbine alternator (la). Measure the resistance between the two
outer terminals of the 3-wire connector (NN). The
resistance should be 3-5 ohms. If the reading varies
from this value, replace the elternator.
Measure the resistance between each outer terminal of
the 3-wire connector and tha 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 (3). 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 to 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 a t 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.
Power Cartridge
Turbine Alternator
lb
0-Rings
3
Power Supply
3s
0-Ring
3b
Spring
0-Rine
3c
" Coupling
NN Connector
1
la
1
Fig 19
""C
.C
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 I471
and remove it from the handle (321.
Remove the retaining ring (39). Rotate the air adjusting
screw (48) clockwise until it is disenaaaed from the
valve housing threads. Pull the adjustihgscrew out of
the valve housing.
Clean ail parts and inspect for wear ,or damage. if
replacing the seal (40).unscrew it counterclockwise and
remove it from the adjusting screw.
Apply thread locking compound, such as Loctite" No.
609, to the m a i l 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
( 4 8 ) with petroleum jelly. Screw the screw into the air
valve housing (47).
Install the retaining ring (39) on the adjusting screw
148). Back the adjusting screw out of the valve housing
(47) until it bottoms out against the retaining ring 139).
Fig 21
Apply PTFE tape to the threads of the valve housina
(47) and install in the gun handle (32).Torque the hou;
ing to 1.1-1.4 N m (10-12 in-lb).
Air Valve Replacement (See Fig 22)
Use a screwdriver to remove the retainer (57). spring
( 5 5 ) and air valve ( 5 4 ) .
Use wrench ( a b ) to unscrew and remove guide (52)
and packing ( 5 3 ) from the front of the gun handle (321.
CAUTION
is compatiblewith 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 (561. 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.
16
307-706
Fig 22
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 (501. Push on the end of the valve
stem to force the valve out of the gun handle. If the valve
is hard to remove, insert the hex head wrench (me) in th6
hex end of the valve and turn to loosen the valve.
Clean and inspect parts for wear or damage, replacing
parts as necessary.
Lubricate the O-rings (37) and valve (38)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).
KEY
2
Disc
37
38
49
W
Muffler, Check Valve and Inlet Filter Replacement
(See Fig 24)
51
638
0-Ring
Valve
Nut
Wave Washer
Lever
Wrench
Unscrew and remove the fluid inlet fitting (25).
Remove the screw (22). Be sure the flats of the adapter
(24) and the flats of the air inlet fitting (32a)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 10.125
in.) rod into the hole in there.~~
tainer (29) and pry the retainer outof the bracket (28).
BE READY TO CATCH the ball (311 and sorino 130)
which will come out when the retainer is removd.
~~
Install a new ball and spring in the bracket (28). Snap
the retainer (29) beck into the bracket (28).
Attach the bracket (28) and bulkhead retainer (75) to the
gun handle with the screw (221.
Install a new filter (26) in the adapter (24). Reinstall the
fluid fitting (25). There willbe a small space between the
hexes of the fitting and adapter; do not overtighten
them.
KEY
20
28
28
29
Eluid Tube
Screw
Adapter
Fluid Inlet Fining
FIuU Filtar
Bracket
Retainer
31
Ball
2'2
24
26
Jo
32
32a
33
X
FF
Spring
Gun Handle
Air Inlet Fining
Muffler
Bulkhead Retainer
Fluid Tube Connector
Fig 24
307-706
17
Part No. 218-668, Series B
Model PROAA4000 Gun
qepair Klt 218-762
Must be purchased separately
ncludes:
Ref No.
lb
2
37
56
1
3c
4
13a
2oa
i
Qty
2
1
1
1
1
1
2
2
3a
37"
=-APPLY
LOCTITP
601-21 TORQUETO
20
Ref No. 63
Tool Kit
Includes items 63a-63g
63C
i
3d
i.
i
PARTS LIST
i
,i
Part No. 218-668, Series B
REF
NO.
1
la
lb
2
3
3a
3b
3c
4
5
li
12
13
PART
NO.
DESCRIPTION
QTY
218-111 POWER CARTRIDGE
Includes items la 8 3
217-591 .ALTERNATOR
Includes replaceable item lb
*107-106 ..O-RING; buns-N
V07-107 REGULATOR, disc
218041 POWER SUPPLY, ES ( 7 5 KV)
Includes replaceable item
'106-555 .O-RING; fluorocarbon
178504 .SPRING
*177-158 .O-RING; Won"
*179-387 GASKET, housing
179-% LABEL. warnina
3a.3b.3c
~-..
218-695 NUT, retaining, air cap
218715 AIR CAP; See below for other air
caps
**219-411 SPRAY TIP, 0.279mm (0.0113;
Includes item 1%; See page 21 for
other tins
*164-769 .w~siiiEk
220-613 HOUSING, ball seat, includes resistor
**218-697 NEEDLE, fluid
Includes item 17a
1 7 a w .NUT, adjustment lfront)
17a
19
181-183 TRIGGER
20
218-713 TUBE, fluid
Includes item ZOS
2oa
'164-769 .WASHER
21
105689 NUT, mach, hex; M4 x 0.7
22
180-624 SCREW. mach. cross Dan head;
M5x12'
24
ADAPTER, filter
CONNECTOR, fluid
25
FILTER, tip
26
RRACKFT
-. .. . ..-.
28
29
RETAINER
SPRING, compression
30
BALL, bearing
31
HANDLE. clun
32
Includes it& 32e
32a
179-400 .FIlTING, air inlet
23
180-623 MUFFLER
34
104-765 PLUG, pipe; hdls; 1/827 npt
37
'103-648 'O-RING; Viton
38
181-326 VALVE, air
39
10-1
RING, retaining, exteinal
40
181-383 SEAL, valve; acetal
41
1W-172 BALL; 3/16 diameter
42
107-414 SPRING, compression
43
180-763 RESTRICTOR
44
218179 LIGHT, sensor
45
107-100 CAPSCREW, hex socket head;
M6x 12
1%
14
17
1
1
2
1
i
1
1
i
1
PART
NUMBER
II
QTY
I
I
w
51
52
53
51
58
1
2
1
PART DESCRIPTION
NO.
,103-557
180-713
180-714
181328
102-268
181-327
180-735
*106-901
215890
107-029
*103-338
179-391
180-060
59
~.
62
63
63a
63b
63c
wd
631
s3e
75
76
77
78
105749
177-732
181-095
183-107
107-480
218-751
180-143
177-128
107-400
179-791
O-RING; Viton
HOUSING, valve, air
SCREW, adjusting
NUT, cap; No. 10.32, nylon
WASHER, wave
LEVER, valve
GUIDE, s
O-RING; PTFE
VALVE, air
SPRING, compression
O-RING; Viton
RETAINER, spring
SIGN, warning, English (not shown)
See page 21 for other languages
SIGN, warning, Spanish hot shown)
COVER, gun (not shown)
KIT, tool
Includes items 63a-63g
.BRUSH, cleaning
.WRENCH
.TOOL, pressing
.WRENCH, ball seat housing
2
.WRENCH,.barrel
.ELECTRODES, box of .lo
RETAINER, bulkhead
SPACER
SCREW, trigger
TAG, warning (not shown)
2
2
1
*Included in Repair Kit 218-752 (see page 181.
**Recommended "roo1 box" spare parts. Keep on hand to
reduce down time.
When servicing, use only original Graco replacement parts. Use of other parts could impair the
of the gun.
grounding continuity
I
W
AIR CAPS
Must be ordered separately. Restrictor Kit, pert no.
220-493 (see below), must be ordered and installed
when using these air caps.
'
i
2
2
2
2
2
1. To be sure you receive the correct replacement parts,
kit or accessories, always give ell of the informetion
requested in the chart below.
2. Check the parts list to identify the correct pert number;
do not use the ref. no. when orderlng.
3. Order ell parts from your nearest Graco distributor.
6 digit
a
.-
49
..
HOW TO ORDER REPLACEMENT PARTS
I
I
46
47
55
56
-
'
REF
NO.
PART DESCRIPTION
Part No. Description
220-378 Fine finish air cap (no pattern control)
220-379 High solids air cap
High Air Flow Restrictor Kit 220-493
Must be purchased separately. Includes:
Ref No.
100
101
102
Part No.
179-994
107-414
100-172
Descriptlon
RESTRICTOR
SPRING, compression
BALL: 3/16" diameter
2
2
II
307-706
19
I
ACCESSORIES (Must be purchased separately)
The accessories in this section have not been
tested by Factory Mutual.
1O:l MONARK PUMP 217-523
66 bar I950 psil MAXIMUM WORKING PRESSURE
WALL BRACKET 206-220
HIGH VOLUME AIR REGULATOR 206-199
0-9 bar (0-125 psi) Regulated Pressure
14 bar 1200 psi) 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;)
CART 208-210
PUMP SUCTION HOSE 214-960
PAIL SUCTION TUBE 165-767
DRUM SUCTION TUBE 206-266
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.)
FLUID FILTERS
207 bar 131Myl mil MAXIMUM WORKING PRESSURE
214-ROwith aluminum, bowl and support.
218-029with carbon steel bowl and support.
AIR PRESSURE REGULATOR 104-267
20 bar f3LW psil MAXIMUM WORKING PRESSURE
STAINLESS STEEL SCREENS
AIR PRESSURE GAUGE 101-180
0-14 bar (0-200
psi) range
-
167-024 595 micron (30 mesh)
167-025 250 micron (60 mesh)
167-026 1 4 9 micron (100 mesh)
167-027 74 micron (200mesh)
FILTER DRAIN VALVE 210-669
350 bar I S O W mil MAXIMUM WORKING PRESSURE
FLUID SHUTOFF VALVE 210-657
350 bar 15600 psi) MAXIMUM WORKING PRESSURE
AIR LINE FILTER
17.5 bar 1.750 Dsil MAXIMUM WORKING PRESSURE
AIR LINE LUBRICATOR
17.5 bar f250psil MAXIMUM WORKING PRESSURE
214-847 318 npt(f)
214-848 112 npt(f)
FLUID PRESSURE REGULATOR 217-576
70bar I 1
W 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 I1M)O psi) WORKING PRESSURE
GUN C.0VERS 218-84
Package of TO disposable gun covers.
COMPRESSION SPRING 501-511
*FLUID PRESSURE GAUGE 101-696
0-70 bar (0-IO00 psi) range
230-987ELECTROSTATIC SYSTEM
Includes items:
218-668Manual EIS Air-Airless Spray Gun
218-101 Grounded Air Supply Hose, 7.6 m (25')
214698 Static Free Fluid Hose, 7.6 m (25')
106-148Air Filter
PROAA4M)O 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 MOUNT
SYSTEM 230-986
Includes system 230-987
~
20
"_
~"
307-706
MEGOHMMETER 216-979
500 Volt output; 0.01-2000 megohms
ACCESSORIES (Must be purchased separately).
The accessories in this section have been tested
by Factory Mutual.
WARNING
Never operate your equipment a t 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 (lW psi) MAXIMUM WORKING PRESSURE
6.35 mm (0.25 in.) ID, 114 npsm(fbe1
218100 5 m (15 f t ) Air Supply Hose Assembly
218101 8 m (25 f t ) Air Supply Hose Assembly
218-102 11 m (36 f t ) Air Supply Hose Assembly
218-1W 15 m ( 5 0 f t l Air Supply Hose Assembly
220-119 23 m (76 f t ) Air Supply Hose Assembly
220-120 30.5 m 1100 f t ) Air Supply Hose Assembly
STATIC FREE FLUID HOSE, Nylon
207 bar Glooo psi1 MAXIMUM WORKING PRESSURE
Nylon tuba, Urethane cover
I
U4MO
214701
214-699
214698
214-697
214-638
214-635
214636
Length
4.8 m m (3l16") 0.61 m i2 ft)
4.8 mm i3/18" 0.91 m (3ft)
4.8 mrn (3/16") 1.8 m 16 ft)
4.8 m m 13/16") 7.6 m ( 2 5 ft)
4.8 rnm 13/16',) !15.2 m i50 ft)
6.4 mm 1114") 0.36 m 114 in.)
6.4 mm i1/4"1 0.61 m (2 ft)
6.4 mm i1/4") 0.91 m.(3 ft)
214-629 6.4 mm (1/4") 4.6 rn 115 ft)
210-540 6.4 mm 11/4") .7.6 rn 125 f t )
210-541 6.4 mm (114") 15.2 rn 150 ft)
I
I
Thread
Sire
~
114 npsrnif)
114 npt1rnxf)
1/4 npsmif)
114 npsrnlf)
1/4 npsrnlf)
1/4 npsrnifl
1/4 npsrnif)
1/4 npsrn(f) x
114 nptlm)
1/4 npsrn1f)
114 npsrnlf)
114 npsmif)
WARNING SIGNS
180-060 Warning Sign (English)
180-061 Warning Sign (French)
180-062Warning Sign (German)
180-063 Warning Sign (Spanish)
--
SPRAY TIP SELECTION CHART
Size
0.009
0.011,
I
1
"Heavy
Viscosity
--
iI oz1min
iterslmir
7.0
219-209
219-309
21949
4-6 1100-150)
6-8 1150-200)
8-10 (200-w)I
10.2)
6-8 (150-200)
lo.,
(0.3)
219-211
219-311
219-411
219-511
219-611
13.0
10.4)
219-213
219-313
219413
219-513
219-613
10-12 1250-300
12-14 (300-350
0.013
3.019
Pan
Numbel
4-6 il00-150)
6-8 1150-2001
8-10 ~200250)
10-12 1250-300
12-14 1300-350
I I
6-8 i150.2001
8-10 (200-250)
10.12 im-300)
12-14 (300-350
14-16 (350-400
219-215
213315
219-415
219-515
219-615
17.0
10.5)
28.0
10.81
21.o
(0.6)
-
219-217
219-317
219-417
219-517
219-617
219-319
219-419
219-519
219-619
219-719
35.0
11.0)
27.0
10.8)
219-421
219-521
219-621
219-721
219-821
0.023
8-10 i200-250)
40.0
10-12 1250-300) 11.2)
12-14 (300350) .,
1416 1350-4001
16-18 1 4 0 0 - 4 6 0 )
34.0
(0.971
219-423
219-523
219-623
219-723
219-823
0.025
8-10 (200-2501
10-12 1250-300)
12-14 1300-3501
14-16 1350-400)
16-18 1 4 0 0 - 4 6 0 )
42.0
11.2)
219-425
219-525
219-625
219-725
219-825
1200-250)
0-12 1250-300)
2-14 (300-350)
4-16 (350-400)
6-18 1400-460)
*Fluid Output at
50.0
i1.5)
.
600 psi (41 barl.
The fluid output la) at other pressures iP1 can be calculated
by this formula:
Q = 10.041] (QT]
(r].
Where QT = Fluid output ( f l oz/minl 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 orifioe size is
0.025".
307-706
21
SERVICE INFORMATION
Listed below by the assembly changed are OLD, NEW,
ADDED and DELETED parts.
ASSEMBLY P A R T
CHANGED STATUS
218-668
Spray Gun
,
OLD
NEW
ADDED
DELETED
ADDED
ADDED
REF P A R T
NO. N O .
NAME
218686 Housing
14 220-813 Housing
59 180-063 Sign
63
63
78
218696 Kit
220-614
K
i
179-791 Tag
INTERCHANGEABILITY NOTE: The NEW parts replace
the OLD parts listed directly above them. ADDED and
DELETED parts are not interchangeable.
-.
TECHNICAL DATA
Weight:0.87 Kg 11.90Ibl
Gun length :310mm (12.25in.)
Operating voltage range :0-75 Kv
ODaratino fluid Dressura : 0 8 8 bar 10-950 mil
'Operating air pressure: 0-7 bar (Ci-lcXI
psi)
Fluid inlet: 114-18.6(mJ
Air inlet: 114 npsm(rnJ L.H.
Waned parts: Stainless Steel, Acetal,
UHMW Polyethylene, Nylon,
Carbide, PTFE , Dalrin'
~
FE
~
~
~
and Dalrin'
Lonitam is a registered trademark of the Loctite Corporation.
THE GRACO WARRANTY AND DISCLAIMERS
WARRANTY
Graco warrants ell equipment manufactured by it and bearing i*i name to be free from defects in material and workmanship on the date of sale
by an authorized Graco dmtributor to the original purchaser for use. Aa purchaser's sole remedy for breach of this warranty. Graco will, for a
period of weive months from the date of sale, repair or replace any part of the equipment proven defective. This warranty applies only when the
equipment is installed. operated and malntainsd in accordance with Graco's written recommendations.
. .....
This warranty does not cover, and Graco shall not be liable for, any malfunction. damage orwaar caused by faulty installation.'misapplication.
abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component pam. Nor
shall Graco be liable for malfunction. damage or wear caused by the incompatibility with Graco equipment of structures, accessories, aquipment or materials not supplied by Graco, or the improper design, manufacture, installation, bparation or maintenance of structures. accBIEu)nes, equipment or materials not supplied by Graco.
This warranty is condnioned upon the prepaid return of the equipment claimed to bs defective for examination by Graco to verify the claimed
Graco will repair or replace free of charge any defective pam. The equipment will be returned to the
defect. If the claimed defect is verified,
original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repain will be
made at a reasonable charge, which charges may include the the costs of pam, labor and transportation.
EQUIPMENT NOT COVERED BY GRACO WARRANTY
i
Factory Brenche%Atlanta, Dallan, Dotrot. Lon An ale& Want Caldwsll IN.J.1
Subldbry and Affllbte C a p a n l a s : C a n a d a : England: Swltzarfand France; Germany; Hong Kong; Japen
GRACO INC.
P. 0. Box 1441 MINNEAPOLIS, MN 554401444
PRINTED IN U S A .
307-708 1 7 4 4 R d s e d 988