Graco 307706P Model PRO AA4000 Owner's Manual

INSTRUCTIONS–PARTS LIST
307–706
This manual contains IMPORTANT
WARNINGS AND INSTRUCTIONS
READ AND RETAIN FOR REFERENCE
Model PRO AA4000
MANUAL MID-RANGE ELECTROSTATIC
AIR-ASSISTED AIRLESS SPRAY GUN
66 bar (950 psi) MAXIMUM WORKING FLUID PRESSURE
7 bar (100 psi) MAXIMUM WORKING AIR PRESSURE
Part Number 218–668, Series B
With 0.279 mm (0.011 in.) spray tip, part no. 219–411
U.S. Patent No. 4,290,091; 4,219,865;4,386,739; 3,843,052;
4,462,061; 4,497,447; 4,554,622
U.K. Patent No. 2,140,327B; 2,111,406B; 2,142,559B; 2,147,158
Patented 1986, 1987 Canada
Brevete 1986, 1987
French Patent No. 82 21202; 84 07942; 84 10234
Italian Patent No. 1,111,380
West German Patent No. DE 22 09 896
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1984, GRACO INC.
Rev. P
Supersedes N
TABLE OF CONTENTS
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Test Resistor Stud Resistance . . . . . . . . . . . . . . . . . . 15
How The Electrostatic Air-Assisted Airless
Spray Gun Works . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Service
Gun Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrode Wire Replacement . . . . . . . . . . . . . . . . . . . .
Ball Seat Housing & Resistor Replacement . . . . . . .
Barrel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Barrel Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Needle Replacement . . . . . . . . . . . . . . . . . . . . .
Check the Gun Safety Latch . . . . . . . . . . . . . . . . . . . .
Power Cartridge Replacement . . . . . . . . . . . . . . . . . .
Turbine Alternator Removal . . . . . . . . . . . . . . . . . . . . .
Fan Air Valve Replacement . . . . . . . . . . . . . . . . . . . . .
Air Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . .
ES ON-OFF Valve Removal and Repair . . . . . . . . . .
Muffler, Check Valve & Inlet Filter Replacement . . .
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4, 5
Installation
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ventilate the Spray Booth . . . . . . . . . . . . . . . . . . . . . . .
Connect the Air Line . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check the Electrical Grounding . . . . . . . . . . . . . . . . . .
Connect the Fluid Line . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
7
7
7
8
Operation
Filter the Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spraying Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the Spray Tip and Air Cap . . . . . . . . . . . . . . . . .
Adjust the Spray Pattern . . . . . . . . . . . . . . . . . . . . . . . .
8
8
8
9
9
Maintenance
Daily Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . 10
Flush the Spray Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Spray Pattern Troubleshooting Chart . . . . . . . . . . 11
Gun Operation Troubleshooting Chart . . . . . . . . . 12
Electrical Troubleshooting Chart . . . . . . . . . . . . . . 13
Electrical Tests
Test Gun Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Test Power Supply Resistance . . . . . . . . . . . . . . . . . . 14
16
16
16
17
17
18
18
19
20
21
21
22
22
Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
How To Order Replacement Parts . . . . . . . . . . . . . 23
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26–28
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Important Phone Numbers . . . . . . . . . . . . . . . . . . . . 29
Spray Tip Selection Chart . . . . . . . . . . . . . . . . . . 30, 31
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover
TERMS
WARNING: Alerts user to avoid or correct conditions that could
cause bodily harm.
PRESSURE RELIEF PROCEDURE: A safety procedure for
relieving air and fluid pressure in the system.
CAUTION: Alerts user to avoid or correct conditions that could
cause damage to or destruction of equipment.
FOR YOUR SAFETY: Alerts user to read the additional safety
warnings on the page indicated.
NOTE: Identifies essential procedures or helpful information.
ES ON-OFF VALVE: An on/off switch located near the rear of
the gun, above the gun handle, that turns the electrostatic power on or off.
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.
HOW THE ELECTROSTATIC 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 that 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 work piece, 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 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 dif fers from
the conventional air spray gun in that increasing the fan
air reduces the pattern width. T o increase the pattern
width, less fan air or a larger size tip must be used.
SAFETY WARNINGS
SERIOUS BODILY INJURY, EXPLOSION, FIRE, OR ELECTROSTATIC 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 ONL Y BE INST ALLED 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 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.
Diffuser
NEVER point the spray gun at anyone or at any part of the body.
The gun diffuser, which is part of the ball seat housing, 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, below,
then remove the spray tip. Aim the gun into a grounded metal pail. With
the turbine air OFF, and using the lowest possible pressure, trigger the
gun. If the fluid emitted is not diffused into an irregular stream, replace the
ball seat housing.
NEVER put hand or fingers over the spray tip.
Spray Tip Safety
NEVER try to stop or deflect leaks with your hand or body.
Use extreme caution when cleaning or changing spray tips. If the spray
tip clogs while spraying, engage the gun safety latch immediately. Follow
the Pressure Relief Procedure, then remove the spray tip to clean it.
ALWAYS follow the Pressure Relief Procedure, at right, before cleaning
or removing the spray tip or servicing any system equipment.
NEVER wipe off build-up around the spray tip or remove the spray tip until
pressure is fully relieved and the gun safety latch is engaged.
BE SURE equipment safety devices are operating properly before each
use.
Pressure Relief Procedure
NEVER try to “blow back” paint; this is NOT an air spray system.
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.
Note to Physician: Injection into the skin is a traumatic injury. It
is important to 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 blood stream. Consultation
with a plastic surgeon or reconstructive hand surgeon may be advisable.
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. Failure to set the safety latch can result in accidental triggering of the gun.
Set the safety latch by depressing it on the left or right side of the trigger.
See the illustration below. Disengage the latch by pushing it toward the
trigger and up.
Safety Latch
shown in closed
or “Lock” position
SPRAY
LOCK
4
307-706
Safety Latch
shown in open or
“Spray” position
SPRAY
LOCK
To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, injury from moving parts or electrostatic
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 the 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. Open the pump drain valve, having a waste container ready to catch
the drainage.
7. 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 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.
Bleed-Type Air Shutoff Valve and Fluid Drain Valve
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.
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
sufficient.
EQUIPMENT MISUSE HAZARD
General Safety
System Pressure
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 cause them to rupture and result in fluid
injection, electrostatic shock, fire, explosion or property damage.
This gun has a maximum fluid 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.
NEVER alter or modify any part of this equipment; doing so could cause it
to malfunction.
Fluid Compatibility
CHECK all spray equipment regularly and repair or replace worn or damaged parts immediately.
Read and follow the fluid and solvent manufacturer’s literature regarding
the use of protective clothing and equipment.
BE SURE all fluids and solvents used are chemically compatible with the
“Wetted Parts” shown in the TECHNICAL DATA on page 29. Always
read the fluid and solvent manufacturer’s literature before using the fluid
or solvent in this gun.
FIRE, EXPLOSION, or ELECTROSTATIC SHOCK HAZARD
To reduce the risk of fire, explosion, or electrostatic shock, which may result from electrical discharge, it is essential that:
S
S
S
All parts of the electrostatic system are properly grounded.
All personnel in or close to the spray area are properly grounded.
All electrically conductive objects or devices in the spray area,
including paint containers, wash cans and tools, are
properly
grounded.
When operating the electrostatic device, any ungrounded objects in the
spray area (such as people, containers, tools, etc.) can become electrically charged. Arcing may occur if these objects then come in contact or
close to ground. Arcing of suf ficient energy levels can ignite the fluid
being sprayed, fumes from solvents, dust particles, and other flammable
substances. This can cause a fire or explosion and result in serious bodily injury and property damage.
Static electricity can also be generated by the flow of fluid through the
pump, hose, gun, and nozzle, but it is dissipated through proper grounding as described in Grounding below.
If you experience any arcing 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
The following are 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. Electrostatic Spray Gun: obtain grounding through connection to a
properly grounded air supply hose. Use only the Graco Electrically
Conductive Air Supply Hose; see ACCESSORIES section to order.
Connect the air hose ground wire to a true earth ground.
4. Object being sprayed: keep the work piece hangers clean and
grounded at all times. Contact points must be sharp points or knife
edges.
5. All electrically conductive objects or devices in the spray area,
including paint containers and wash cans, must be properly
grounded.
6. All persons 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 spray gun. The gloves
must be conductive or modified as shown on page 8.
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 liquids in the spray area must be kept in approved,
grounded containers. Do not store more than the quantity needed for
one shift.
9. All solvent 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.
10. All air and fluid lines and electric cables must be properly grounded.
Flushing and Cleaning Safety
To reduce the risk of static sparking or splashing, always follow the Pressure Relief Procedure on page 4 and remove the spray tip before flushing.
Be sure the ES valve lever is OFF before flushing or cleaning any
part of the spray system.
Use the lowest possible pressure to flush. Trigger the gun into a grounded
metal waste container.
To flush or purge equipment, ALWAYS use solvents with a flash point
equal to or greater than that of the fluid being sprayed.
To clean the exterior of the equipment, ALWAYS use solvents with a flash
point of higher than 38_ C (100_ F).
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.
Check and follow all National, State and Local codes regarding air
exhaust velocity requirements. Check and follow all local safety and fire
codes and OSHA standard 1910–107(b)(5)(i).
HOSE SAFETY
Highly pressurized fluid contained in the hose can be very dangerous. If
the hose develops leak, split or rupture, due to any kind of wear, damage
or misuse, high pressure spray emitted from it can cause a fluid injection
injury or other serious bodily injury or property 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 the entire hose for
cuts, leaks, abrasion, bulging cover, or damage or movement of the hose
couplings. If any of these conditions exist, replace the hose immediately.
DO NOT try to recouple high pressure hose or mend it with 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.
IMPORTANT
United States Government safety 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.
307-706
5
TYPICAL INSTALLATION
A
T
M
N
B*
C*
D
S
O
E*
H
G
G
W
P
J*
X
R*
K
Q*
F
L
WARNING
SIGN
U
V*
NON–HAZARDOUS AREA
Air Supply to Gun MUST Be Interlocked
With Spray Booth Exhaust Fan.
KEY
A
B*
C*
D
E*
F
G
H
Main Air Supply Line
Ventilation Fan Interlock Solenoid Valve
Main Air Supply Shutoff Valve (bleed–type)
Air & Water Separator
Pump Air Supply Shutoff Valve (bleed–type)
Air Line Lubricator
Air Pressure Regulator
Pump
HAZARDOUS AREA
*Equipment that must be installed for safe operation. Must be
purchased separately. See ACCESSORIES. NOTE: Solenoid
Valve (B) is not offered as a Graco accessory.,
J*
K
L
M
N
O
P
Pump Ground Wire
Fluid Filter
Fluid Supply Line Shutoff Valve
Fluid Pressure Regulator
Fluid Supply Line
Air Filter (5 micron)
Air Supply Line
Shutoff Valve
Q*
R*
S
T
U
V*
W
X
Air Hose Ground Wire
Grounded Air Supply Hose
Electrostatic Spray Gun
ES On–Off Valve Lever
Air Line Drain Valve
Fluid Drain Valve
Gun Air Inlet
Gun Fluid Inlet
The Typical Installation shown above is only a guide for
selecting and installing an electrostatic air-assisted airless spray system. It is not an actual system design. The
particular type and size system for your operation must
be custom designed for your needs. For assistance in
designing a system, contact your Graco representative.
WARNING
Installing and servicing this equipment requires
access to parts which may cause electrostatic shock
or other serious bodily injury if work is not performed
properly. Do not install or service this equipment
unless you are trained and qualified.
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, a regulator
MUST be used to limit the pressure to 66 bar (950 psi).
Graco’s 10:1 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.
Warning Signs
Mount warning signs in the spray area where they can
easily be seen and read by all operators. An English and
a Spanish W arning Sign are provided with the gun.
Additional English, French, German, and Spanish signs
are available at no charge. See the ACCESSORIES section to order them.
Check and follow all local safety and fire codes,
NFPA 33, NEC 504 and 516, and OSHA standard
1910.107.
INSTALLATION
Ventilate the Spray Booth
Check the Electrical Grounding (See Fig 1)
WARNING
To prevent hazardous concentrations of toxic and/or
flammable vapors, spray only in a properly ventilated spray booth. Never operate the spray gun
unless ventilation fans are operating. The air
supply to the gun must be electrically interlocked
with the ventilators to prevent operation of the power supply unless ventilating fans are running.
Check and follow all the National, State and Local
codes regarding air exhaust velocity requirements.
NOTE: High velocity air exhaust will decrease the operating efficiency of the electrostatic system. The
minimum allowable air exhaust velocity is 31 linear meters/minute (100 ft/min).
WARNING
Proper electrical grounding of every part of your
system is essential. For your safety , read the
warning section, FIRE, EXPLOSION, or ELECTROSTATIC SHOCK HAZARD , on page 5.
Ground the system as explained there. Then
check your system as explained below.
1.
Turn the ES On–Off valve to OFF. See Fig 5 for
the location of the valve lever.
2.
Turn off the air and fluid supply to the gun.
3.
Have a qualified electrician check the electrical
grounding continuity of the spray gun and air hose.
a. With the electrically conductive air hose (BB)
connected (see Connect the Air Line ) and
properly grounded, use a megohmmeter (AA) to
measure the resistance between the gun handle
(Y) and a true earth ground (Z). Use an applied
voltage of 500 volts minimum to 1000 volts maximum. See Fig 1.
Connect the Air Line (See Typical Installation)
WARNING
To reduce the risk of electrostatic 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. See ACCESSORIES.
1.
Connect the air supply hose (R) between the air
supply line and the gun’s air inlet (W). The gun air inlet fitting has a left hand thread. Connect the air supply hose ground wire (Q) to a true earth ground.
2.
Install an air line filter (O) and an air and water
separator (D) on the air line to ensure a dry, clean air
supply to the gun. Dirt and moisture can ruin the
appearance of your finished workpiece and can
cause the gun to malfunction.
3.
4.
b. 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.
Z
AA
Install a bleed-type air regulator (G) on the pump
and gun air supply lines to control air pressure to the
pump and gun.
BB
Install a bleed-type air shutof f valve (C) on the
main air line and pump air line (E) to shut off air to the
pump. Install an additional bleed-type valve on each
pump air supply line to relieve air trapped between
this valve and the pump after air regulator is shut off.
WARNING
The bleed–type air shutoff valve is required in your
system to relieve air trapped between this valve
and the pump after the air regulator is closed.
Trapped air can cause the pump to cycle unexpectedly, which could result in serious bodily injury, including splashing in the eyes or on the skin
and injury from moving parts.
5.
Install an air line lubricator (F) as close to the
pump (H) as possible.
6.
Install an air shutof f valve (P) on each gun air
supply line to shut off air to the gun(s).
Y
KEY
Y
Z
AA
BB
Gun Handle
True Earth Ground
Ohmmeter
Grounded Air Hose
Fig 1
INSTALLATION
Connect the Fluid Line (See Typical Installation)
1.
Before connecting the fluid line (N), blow it out
with air and flush it with solvent. Use solvent which is
compatible with the fluid to be sprayed.
2.
Install a fluid regulator (M) on the fluid line to control fluid pressure to the gun.
3.
Install a fluid filter (K) and drain valve (V) at the
pump outlet.
4.
Connect fluid line to 1/4–18.6(m) gun fluid
inlet (X).
WARNING
The fluid drain valve (V) is required in your system to
assist in relieving fluid pressure in the displacement
pump, hose and gun; triggering the gun to relieve
pressure may not be suf ficient. The drain valve
reduces the risk of property damage or serious bodily injury, including splashing in the eyes or on skin.
Install a drain valve close to the pump’s fluid oulet.
OPERATION
WARNING
For your Safety , AL WAYS follow the Pressure
Relief Procedure on page 4 when shutting off the
system, when you stop spraying, and before
checking, servicing, installing, cleaning or chaning
any part in the system.
3 in. (76 mm)
Square Cut Out
and Finger of
Glove Cut Off
NOTE: If gloves are worn, they must
be conductive or modified as shown
so as not to interfere with operator
grounding through the gun.
Operating Checklist
Check the following list daily, before starting to operate
the system, to help ensure you of safe, ef
ficient
operation.
1. Be sure all operators are properly trained to
safely operate an air-assisted airless electrostatic spray system.
2. Be sure all operators are trained how to properly and completely relieve system pressure.
3. Be sure the system is thoroughly grounded.
See FIRE, EXPLOSION, or ELECTRIC
SHOCK HAZARD , page 5, and Check the
Electrical Grounding, page 7.
4. Be sure the operator and all persons entering
the spray area are properly grounded by wearing shoes with conductive soles or personal
grounding straps.
Fig 2
Filter the Fluid
5. Operator must not wear gloves which insulate
the hand from the spray gun. If worn, gloves
must be conductive or modified as shown in
Fig 2 so as not to interfere with operator
grounding through the gun.
Filter the fluid to remove coarse particles and sediment
which could clog the spray nozzle.
6. Be sure ventilation fans are operating
properly.
Spraying Operation
7. Be sure the workpiece hangers are clean and
grounded. Contact points must be sharp
points or knife edges.
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.
When spraying, the ES indicator lights (44) should glow,
indicating the electrostatic charge. See Fig 5.
CAUTION
Be careful not to damage the electrode by jamming it into an object when operating or setting
down the gun.
8
307-706
8. Be sure all refuse is removed from the spray
booth.
9. Be sure all flammable liquids in spray booth
are in approved, grounded containers.
10. Be sure all conductive objects within 20 ft
(6 m) of the gun are electrically grounded and
the floor of the spray area is electrically conductive and grounded.
Install the Spray Tip and Air Cap
OPERATION
6.
WARNING
For your safety, always follow the Pressure Relief
Procedure, on page 4, before installing, or removing the spray tip or air cap.
1.
See the SPRAY TIP SELECTION CHART, page
30, to select the appropriate spray tip for your application. The fluid output and fan width depends on the
spray tip size, fluid viscosity, and fluid pressure.
2.
Place the spray tip (13) in the air cap (12), aligning the tab of the tip with groove in the air cap. Be
careful not to damage electrode wire (GG). See Fig
5.
3.
Place the air cap assembly on the gun. Screw
the retaining nut (11) firmly onto the gun to prevent
leakage between the tip and ball seat housing.
First, complete all the checks under the Operating Checklist on page 9. Then turn the ES ON-OFF
valve lever (T) to ON. See Fig 5.
Provide a 3.1 bar (45 psi) clean, dry , regulated air
supply to the gun to ensure full voltage from the
power supply. The gun may be operated at lower
turbine air pressure, but may lose some electrostatic
effect. Do not operate the turbine at an air pressure
greater than 3.1 bar (45 psi) as there is no benefit and
turbine life will be reduced.
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.
8.
If a narrower pattern is desired, try turning the
fan adjusting knob (EE) clockwise. If the pattern is
still not narrow enough, increase the air line pressure
slightly or use a different size tip.
NOTE: 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 injury, fire, or explosion, BE SURE the electrode wire
is properly installed in the gun (see page 16) and is
not bent or damaged before operating the gun.
NO AIR
VERTICAL SPRAY PATTERN
HORIZONTAL SPRAY PATTERN
TOO LITTLE AIR
Fig 4
RIGHT AMOUNT
OF AIR
KEY
11
12
13
44
12
Fig 3
GG
Adjust the Spray Pattern
Trigger the gun to check the atomization; don’t
be concerned about the pattern shape yet.
3.
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 (950 psi) fluid pressure.
4.
5.
44
Set the fluid pressure at about 21 bar (300 psi),
using the fluid regulator.
2.
Be sure the fan adjusting knob (EE) is
(turned fully counterclockwise).
EE
GG
ES ON-OFF
Valve Lever
Fan Adjusting Knob
Electrode Wire
Tab
13
Follow the steps below to establish the correct fluid flow
and air flow. DO NOT turn the electrostatics on yet.
1.
T
Retaining Nut
Air Cap
Spray Tip
ES Indicator Lights
T
11
EE
closed
Set the atomizing air pressure to 3.1 bar (45 psi).
Fig 5
307-706
9
MAINTENANCE
Daily Care and Cleaning
c.
CAUTION
Clean all parts with a non–conductive solvent,
compatible with the fluid being sprayed. Conductive solvents can cause the gun to malfunction.
CAUTION
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.
Methylene chloride is not recommended as a
flushing or cleaning solvent with this gun as it will
damage nylon components.
Do not use any cleaning method which may
allow solvent into the
gun air passages.
Immersing the gun in solvent is not recommended
as a cleaning method. Solvent left in gun passages
could result in a poor quality paint finish and may
draw current and reduce the electrostatic ef fect.
Solvent in the power supply cavity can reduce alternator life.
WARNING
For your safety, always follow the Pressure Relief Procedure on page 4 when shutting off the system, when you stop spraying, and before checking,
servicing, installing, cleaning or changing any part
in the system.
1.
2.
Use a soft brush or other soft tool, with an air
blow gun, to clean air cap passages. Take care
not to scratch any surfaces. If air cap holes are
plugged, use a round toothpick to unplug the
holes.
6.
Check the electrode wire. Straighten if bent, and
replace if broken or damaged. See Electrode Wire
Replacement.
KEY
25
26
Fluid Inlet Fitting
Fluid Filter
26
25
Clean the fluid and air line filters daily.
Check all of the work hangers for build-up of
material; clean them, if necessary.
3.
Clean the gun fluid filter (26) 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.
Reinstall the filter and inlet fitting. DO NOT over
tighten the inlet fitting as over tightening could
distort the filter.
4.
Clean the outside of the gun daily with a soft cloth
dampened in a compatible solvent.
5.
Clean the air cap and spray tip daily, minimum.
Some applications require more frequent cleaning.
Replace spray tip and air cap if they are damaged.
a. Remove the air cap and spray tip.
b. Clean the tip and air cap with solvent and scrub
with a soft brush.
WARNING
To avoid damaging the ball seat housing resistor ,
use a soft bristle brush dipped in solvent to clean;
DO NOT soak it in solvent! A damaged resistor will
impair the electrical continuity and could result in
electrical discharge, which could cause serious
injury, fire, or explosion.
10 307-706
Fig 6
Flush the Spray Gun
WARNING
To reduce the risk of electric shock, which could
result in serious injury, or the risk of fire or explosion the ES On-Off lever (electrostatics) must be
OFF before flushing.
For your safety , always follow the Pressure
Relief Procedure on page 4 before flushing.
CAUTION
Methylene chloride is not recommended as a
flushing or cleaning solvent with this gun as it will
damage nylon components.
1. Follow the Pressure Relief Procedure on page 4.
2. Disconnect and plug the fluid line.
3. Connect the solvent supply to the gun.
4. Flush the gun with solvent until it is clean.
5. Follow the Pressure Relief Procedure , then disconnect the solvent supply.
6. Reconnect the fluid supply line.
8. Trigger the gun until it is clear of solvent.
SPRAY PATTERN TROUBLESHOOTING CHART
WARNING
Installing and servicing this equipment requires access to parts which may cause electrostatic shock or other serious bodily injury if the work is not performed properly. Do not install or service this equipment unless you are trained
and qualified.
WARNING
Pressure Relief Procedure
5.
To reduce the risk of serious bodily injury , including
fluid injection, splashing in the eyes or on the skin,
6.
injury from moving parts or electrostatic shock, always
7.
follow this procedure when shutting of f the system,
when checking or servicing any part of the spray system, when installing, cleaning or changing fluid noz8.
zles, and whenever you stop spraying.
1. Engage the gun safety latch.
2. Turn the ES ON–OFF Valve lever to OFF.
3. Turn off the air and fluid supply to the gun.
4. Disengage the gun safety latch.
Trigger the gun into a grounded metal waste container to relieve fluid pressure.
Engage the gun safety latch.
Open the pump drain valve, having a waste container ready to catch the drainage.
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. VER
Y SLOWLY
loosen the air cap retainer or hose end coupling and
relieve pressure gradually, then loosen completely .
Now clear the tip or hose.
NOTE: Check all possible remedies in the Troubleshooting Charts before disassembling the gun.
PROBLEM:
IMPROPER SPRAY
PATTERN
CAUSE
SOLUTION
Fluttering or spitting
spray
Insufficient fluid supply.
Adjust fluid regulator or fill fluid tank.
Loose or cracked coupler at fluid inlet.
Tighten or repair.
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 plugged.
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.
Insufficient air pressure.
Increase air pressure.
Fluid pressure too low.
Increase fluid pressure.
Irregular pattern
Pattern pushed to one
side, same side of air
cap gets dirty
Tails in pattern
307-706 11
GUN OPERATION TROUBLESHOOTING CHART
PROBLEM
CAUSE
SOLUTION
Air leakage from front of
gun.
Air valve not seating properly.
Clean, service. See page 21.
Air stem packing too tight.
Loosen packing. See page 21.
Fluid leakage from
front of gun.
Loose or worn fluid seat.
Tighten or replace fluid seat and/or
electrode. See page 16.
Loose spray tip.
Tighten spray tip.
Insufficient air pressure.
Increase, use least air pressure
needed for good results.
Using too large of a spray tip.
Use a smaller size spray tip.
Fluid poorly mixed or filtered.
Remix or refilter fluid.
Improper thinner being used.
Use proper thinner.
Too much 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.
Dirty or clogged spray tip.
Clean spray tip. See page 10.
Damaged spray tip.
Check, replace spray tip. See page 9.
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.).
“Orange Peel” finish.
Excessive spray fog.
No fluid sprays from
gun.
Equipment covered
with fluid.
12 307-706
ELECTRICAL TROUBLESHOOTING CHART
PROBLEM
Poor wrap–around.
Operator gets mild
shock.
Operator gets mild
shock when touching
work piece.
CAUSE
SOLUTION
*ES ON–OFF lever in OFF position.
Turn lever to ON.
*Turbine alternator not operating
Check if ES ON–OFF lever is ON.
Check air supply to gun. Check for
dirt or moisture in turbine. See
page 23.
Improper distance between gun
and work piece.
Adjust spraying distance to
203–305 mm (8–12 in.).
Parts poorly grounded.
Clean hangers, check for proper
ground on conveyer or track.
High booth exhaust velocity.
Reduce within code limits.
Atomizing air pressure too high.
Reduce air pressure.
*Fluid resistivity too low.
Check fluid resistivity with paint
meter and probe.
*Faulty gun resistance.
Check gun resistance. See page 14.
*Faulty resistor stud resistance.
Check resistor stud resistance.
See page 15.
*Faulty power supply resistance.
Check power supply resistance.
See page14.
*Damaged electrode wire.
Replace electrode wire.
See page 16.
*Faulty turbine alternator.
Be sure plug is in place on back of
turbine alternator housing.Remove
and test turbine alternator. See
page 20.
Operator not properly grounded
or is in contact with ungrounded
object.
Be sure floor is properly grounded.
Wear shoes with conductive soles
or wear personal grounding straps.
Be sure operator is not in contact
with or carrying any metallic items
which could build up electrical
charge. If worn, a glove must be
conductive or modified as shown
on page 8.
Gun not properly grounded.
See Check the Electrical Grounding,
page 7. Be sure Graco air supply hose
is being used and is properly grounded.
Work piece not properly
grounded.
Clean work piece hangers. Check
for proper ground on conveyor or
track.
*ES indicator light not on when gun is triggered.
307-706 13
ELECTRICAL TESTS
The performance of the spray gun is directly affected by
the condition of the electrical components contained
inside the gun. The electrical tests below can be used to
determine the condition of the power supply (3) and the
ball housing and resistor (14) as well as the continuity of
the electrical path between components.
KEY
32
32a
A
GG
Gun Handle
Air Inlet Fitting
Megohmmeter
Electrode
A
Use megohmmeter 218–979 (see ACCESSORIES) and
an applied voltage of 500 volts to complete these electrical tests. Connect the leads as shown.
WARNING
To reduce the risk of sparking, which could cause
fire or explosion and result in serious bodily injury,
including electrostatic shock, DO NOT use the
megohmmeter in the hazardous area. Remove
the gun from the hazardous area before testing it.
Test Gun Resistance
NOTE: Check the resistance with the gun triggered and
with the trigger released.
Measure the resistance between the end of the electrode
wire (GG) and the gun air fitting (32a). See Fig 7. 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 13 for other possible
causes of poor performance.
Test Power Supply Resistance
Remove the power cartridge (1) from the gun handle
(32). See Power Cartridge Replacement.
Remove the turbine alternator (1a) from the power supply (3). See Turbine Alternator Removal.
32
GG
32a
Fig 7
KEY
3b
A
HH
Contact Pin
Megohmmeter
Center Connector Prong
A
Measure the resistance from the center prong (HH) in the
power supply to the contact spring (3b) on the other end
of the power supply. See Fig 8.
The resistance should be 95–122 megohms. If the
resistance is outside the specified range, the power supply is defective and must be replaced. If the resistance of
the power supply is correct, proceed to the next test.
If you still have problems, refer to the
Electrical
Troubleshooting Chart for other possible causes of
poor performance, or contact the nearest authorized
service agency.
HH
3b
Fig 8
3
ELECTRICAL TESTS
Test Resistor Stud Resistance
Insert a conductive rod (JJ) into the gun barrel (removed
for the power supply test) and against the metal contact
(KK) in the front of the barrel. See Fig 9.
Measure the resistance between the conductive rod (JJ)
and the gun electrode (GG). The resistance should be
20–30 megohms. If the resistance is correct, refer to the
Electrical T roubleshooting Chart for other possible
causes of poor performance, or contact the nearest
authorized service agency.
KEY
9
A
JJ
KK
GG
Gun Barrel
Megohmmeter
Conductive Rod
Metal Contact
Electrode
A
If the resistance is outside the specified range, remove
the electrode wire (GG). See Electrode Wire Replacement. Measure the resistance between the conductive
rod (JJ) and the resistor (LL) in the outside diameter of
ball seat housing (14). See Fig 10.
If you still have problems, refer to the
Electrical
Troubleshooting Chart for other possible causes of
poor performance, or contact the nearest authorized
service agency.
9
KK
The resistance should be 20–30 megohms. If the resistance is correct, the electrode wire is defective and must
be replaced. See Electrode Wire Replacement. If the
resistance is outside the specified range, the resistor is
defective and the ball seat housing (14) must be
replaced. See
Ball Seat Housing & Resistor
Replacement.
JJ
GG
Fig 9
A
JJ
14
KEY
LL
Fig 10
14
A
JJ
LL
Ball Seat Housing
Megohmmeter
Conductive Rod
Resistor
SERVICE
Gun Disassembly
WARNING
Installing and servicing this equipment requires
access to parts which may cause electrostatic
shock or other serious bodily injury if the work is not
performed properly. Do not install or service this
equipment unless you are trained and qualified.
Follow the Pressure Relief Procedure W arning,
page 11, before servicing the gun or any part of the
system. Disconnect the fluid hose from the gun.
NOTE: Check all possible remedies in the
Troubleshooting Charts before disassembling
the gun.
CAUTION
If the plastic parts of the gun must be held
securely, AL WAYS clamp them in padded
jaws to prevent damage to the parts.
vice
ALWAYS lubricate o–rings and seals with petroleum jelly.
ALWAYS remove gun from worksite for service or
repair. Service or repair area must be clean.
NOTE: A box of ten electrodes is included in the tool
kit (63).
Ball Seat Housing & Resistor Replacement
1.
Unscrew the retaining nut (11) . Remove the air
cap (12) and spray tip (13). See Fig 11.
2.
Insert the special wrench (63d) in the front of the
gun. While triggering the gun, unscrew the ball seat
housing (14) and remove it. See Fig 12.
3.
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 OVER TIGHTEN.
CAUTION
DO NOT over tighten the ball seat housing (14).
Excess torque will damage the housing.
KEY
14
Ball Seat Housing
63d Wrench
Flush the gun as described under Flush the Spray Gun.
Follow the Pressure Relief Procedure W arning on
page 11. Disconnect the air and fluid line from the gun.
KEY
11
12
13
GG
Retaining Nut
Air Cap
Spray Tip
Electrode Wire
63d
14
Torque to
1.1 Nm
(10 in-lb)
13
12
GG
14
11
Fig 11
Electrode Wire Replacement
1.
Unscrew the retaining nut (11). Remove the air
cap (12) and spray tip (13). See Fig 11.
2.
Use a needle nose pliers to gently pull the electrode wire (GG) out the back of the spray tip.
3.
Install the long end of the new wire in the hole
closest to the tab of the tip. See Fig 11. 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.
16 307-706
63d
Fig 12
SERVICE
Barrel Removal
KEY
1.
Remove the retaining nut, air cap, and spray tip.
2.
Unscrew the fluid tube connector (FF) at the bottom of the fluid tube (20), then pull the tube out of the
inlet. See Fig 13.
20
20a
45
63f
FF
3.
Fluid Tube
Washer
Cap Screw
Wrench
Fluid Tube Connector
20
FF
If you are replacing the needle, insert the special
wrench (63d) in the front of the gun. While triggering
the gun, unscrew the ball seat housing (14) and
remove it. See Fig 12.
4.
Remove the trigger screws, spacers, and trigger.
5.
Remove the ES indicator lights. Using the
wrench (63f) supplied, loosen and remove the two
socket head cap screws (45) from the gun. See Fig
13.
6.
Hold the gun handle (32) with one hand and pull
the gun barrel (9) straight up to remove it. See Fig 14.
CAUTION
To avoid damaging the power cartridge, always
pull the gun barrel straight up. If necessary, gently
move the gun barrel from side to side to free it from
the gun handle.
63f
45
20a
Fig 13
KEY
1
4
9
32
Power Cartridge
Gasket
Gun Barrel
Gun Handle
9
4
NOTE: The gasket (4) should be left in the gun handle
(32) if the gasket is not to be replaced.
3
Barrel Reassembly
1.
If the needle assembly was removed, reinstall it
as described on page 18.
2.
Be sure the gasket (4) is in place. Replace if
damaged. Place the barrel over the power cartridge
(1) and onto the gun handle (32). See Fig 14.
3.
Install the two socket head cap screws (45) and
tighten with the wrench (63f) supplied. See Fig 13.
Snap the ES indicator lights in place over the socket
head cap screws.
4.
Insert the fluid tube (20) into the fluid inlet of the
gun barrel, making sure the washer (20a) is in place,
and tighten the fluid tube connector (FF). See Fig 13.
5.
If the ball seat housing (14) was removed, insert
the pressing tool (63c) [see Fig 15] in the front of the
gun and gently push the needle back before sliding
the trigger into place and installing the screws and
spacers. Then remove the tool and reinstall the ball
seat housing (see page 16).
6.
32
Fig 14
KEY
19
44
63c
77
Trigger
ES Indicator Lights
Pressing Tool
Screw
19
44
77
Torque to
1.1–1.4 Nm
(10–12 in-lb)
Install the air cap, spray tip, and retaining nut.
Test the gun resistance as instructed on page 14.
63c
Fig 15
307-706 17
SERVICE
Fluid Needle Replacement
1.
KEY
Remove the gun barrel (9) as instructed on page
17. If the power cartridge comes out, carefully press
it back into the handle.
2.
Insert the narrow end of the pressing tool (63c)
through the front of the gun to push the needle back,
then remove the nut (21) and the adjustment nut
(17a). See Fig 17.
3.
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 (63f) to
finish pushing it out. See Fig 16.
4.
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 (63c) into the front of the gun and
press to seat the needle. See Fig 17.
5.
Install the new adjustment nut (17a), hex end
first, onto the needle.
6.
Use the pressing tool (63c) to press on the
needle from the front of the gun, then screw the
adjusting nut (17a) all the way to the bottom of the
threads. Remove the pressing tool.
7.
Screw the other nut (21) firmly against the
adjustment nut to lock them together.
8.
Reassemble the gun as described in
Reassembly.
KEY
17
17a
21
63f
Needle Assembly
Adjustment Nut
Nut
Wrench
17a
21
17a
21
63c
21
17a
Adjustment Nut
Nut
Pressing Tool
Bottom of
thread
63c
Fig 17
Check the Gun Safety Latch
WARNING
Check to be sure the gun safety latch works properly each time after you change the needle. Safety
latch failure or improper use of the safety latch can
result in accidental gun triggering, which could
cause fluid injection or splashing fluid into the eyes
or on skin and result in serious injury.
17a
Barrel
SPRA
Trigger MUST NOT
touch nut (17a) when
safety latch is locked.
63f
Y
LOCK
Fig 18
TEST 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.
17
TEST 2
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.
If the gun fails either TEST 1 or 2:
Fig 16
Remove the trigger and the ball seat housing. Back the
nuts (17a, 21) away from the bottom of the threads.
Reassemble and check Tests 1 and 2 again. Also check
in front of the trigger to make sure the needle still moves.
If the trigger still fails any of these tests now, the needle
assembly (17) is out of tolerance and must be replaced.
SERVICE
KEY
1
1a
1b
1c
3a
3b
3c
4
9
9b
32
Power Cartridge
Turbine Alternator
O–Rings
Plug
O–Ring
Spring
O–Ring
Gasket
Barrel
Cushion
Gun Handle
3c
3
9
4
3b
3a
1b
9b
See NOTE after
step 3, below.
NOTE: The power cartridge (1)
includes items 1a–1c,
and 3a–3c.
1a
1c
32
Fig 19
Power Cartridge Replacement
1.
Remove the barrel as described under Barrel
Removal.
2.
Remove the gasket (4) from the gun. See Fig 19.
CAUTION
The power cartridge is fragile. Be careful when
handling it to avoid damage.
3.
Grasp the power cartridge (1) with your hand.
With a gentle side to side motion, pull it free from the
gun handle (32). Then pull the power cartridge
straight out of the handle.
CAUTION
DO NOT use solvents to clean the power
cartridge cavity in the gun handle (32). Solvent will
damage electrical components contained in the
power cartridge.
Inspect the power cartridge cavity in the handle
for dirt or moisture. Clean out the cavity with a
clean, dry rag if necessary . Moisture and other
contaminants may damage electronic circuitry.
NOTE: The cushion (9b) is part of the gun barrel and
should never be removed. If it ever is removed,
push the cushion, adhesive side in toward the
barrel, with a rod until it is securely adhered in the
barrel. DO NOT use the power supply (3) to
press the cushion into the barrel as it will not
adhere properly.
4.
Lightly lubricate the o–rings (1b, 3a, 3c) on the
new power cartridge with petroleum jelly. Insert the
new power cartridge in the gun handle.
NOTE: See Fig 20 for proper alignment of the power cartridge (1) in the gun handle (32).
5.
Install the gasket (4) in the gun handle (32).
6.
Install the barrel on the handle as described
under Barrel Removal.
KEY
1
32
Power Cartridge
Gun Handle
32
1
All the o–rings (1b, 3a, 3c) and the compression
spring (3b) must be in place or the gun will
malfunction.
Fig 20
SERVICE
Turbine Alternator Removal
1.
Remove the power cartridge from the gun
handle as described under
Power Cartridge
Replacement.
2.
Carefully twist the turbine alternator (1a) counterclockwise and pull it off the power supply (3) until
just disengaged from the coupling (MM). Then continue to slowly pull the turbine alternator away from
the power supply, disconnecting the 3-wire connector (NN). See Fig 21.
3.
Using an ohmmeter, test the coil in the turbine alternator (1a). Measure the resistance between the
two outer terminals of the 3-wire connector (NN).
The resistance should be 3 to 5 ohms. If the reading
varies from this value, replace the alternator.
4.
Measure the resistance between each outer terminal of the 3-wire connector (NN) and the turbine
alternator housing (1a). The resistance should be infinite. If the resistance is not infinite, replace the
alternator.
5.
Partially connect the 3-wire connector (NN) onto
the prongs inside the power supply (3). See Fig 21.
Using a small screwdriver, push the connector onto
the prongs until seated.
6.
Slide the turbine alternator (1a) 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.
7.
Install the power cartridge in the gun handle as
described under Power Cartridge Replacement.
KEY
1a
3
MM
NN
Alternator
Power Supply
Coupling
3–Wire Connector
3
Fig 21
1a
NN
MM
SERVICE
Fan Air Valve Replacement
Air Valve Replacement
1.
Turn the fan adjusting knob (48) fully clockwise.
1.
2.
Place a wrench on the flats of the air valve housing (47) and remove it from the handle (32). See
Fig 22.
Using a screwdriver, remove the retainer (57),
spring (55), and air valve (54). See Fig 23.
2.
Remove the trigger by removing the screws and
the spacers from the gun.
3.
Using wrench (63b), unscrew and remove the
guide (52) and packing (53) from the front of the gun
handle (32).
3.
4.
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 (47).
CAUTION
Clean all parts in non-conductive solvent compatible with the fluid being used, such as xylol or mineral spirits. Use of conductive solvents can cause
the gun to malfunction.
5.
Clean all the parts and inspect them for wear or
damage. If replacing the seal (40), unscrew it counterclockwise and remove it from the adjusting screw.
6.
Apply medium grade thread sealant 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.)
4.
Apply PTFE tape to the threads of the guide (52).
Install the new packing (53) and guide in the front of
the gun handle (32). T ighten the guide finger tight
only.
7.
When reassembling the fan air valve, lubricate
the o-ring (46) and the adjusting screw (48) threads
with petroleum jelly.
5.
Install the new air valve (54) and spring (55) into
the back of the gun handle (32).
6.
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 (32) and tighten with a
screwdriver.
8.
9.
After the retaining ring (39) is installed on the adjusting screw (48), back the adjusting screw out of
the valve housing (47) until it bottoms out against the
retaining ring.
7.
Apply PTFE paste to the threads of the valve
housing (47) and install it in the handle (32). Torque
the housing to 1.1–1.4 Nm (10–12 in–lb).
Gun Handle
Retaining Ring
Valve Seal
O-Ring
Air Valve Housing
Air Adjusting Screw
Squeeze the trigger and tighten the guide (52)
just until the valve (54) 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.
KEY
32
52
53
54
55
56
57
32
40
Reinstall the trigger with the screws and spac-
8.
KEY
32
39
40
46
47
48
ers.
Gun Handle
Guide
Packing
Air Valve Assembly
Spring
O-Ring
Retainer
Apply
PTFE
tape
57 56
32
39
46
55
48
54
47
Torque to
1.1–1.4 Nm
(10–12 in–lb)
52
Apply
53
PTFE
Fig 22
Fig 23
tape
307-706 21
SERVICE
ES ON–OFF Valve Removal & Replacement
1.
2.
Loosen and remove the nut (49). Remove the
lever (51) and washer (50). See Fig 24. Insert the hex
head wrench (63e) into the hex end of the valve (38),
and loosen and remove the valve.
Clean and inspect parts for wear or damage.
Replace if necessary. Lubricate the o–rings (37) and
valve (38) with petroleum jelly.
3.
Install the regulator disc (2) so that the beveled
face of the disc faces into the valve (38).
4.
Install the valve (38) with the regulator disc (2)
and o–rings (37) into the gun handle so that the larger
opening of the valve cylinder faces toward the front of
the gun handle.
5.
Install the wave washer (50), lever (51), and nut
(49) on the valve stem. Tighten the nut and torque it
to 0.225 Nm (2 in–lb).
KEY
2
37
38
49
50
51
Regulator Disk
O–Ring
Air Valve
Nut
Wave Washer
Valve Lever
38
37
37
2
50
51
49
Torque to
0.225 Nm
(2 in–lb)
Fig 24
22
Muffler, Check Valve, & Inlet Filter
Replacement
1.
Remove the fluid inlet fitting (25). See Fig 25.
2.
Remove the screw (22).
3.
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.
4.
Pull the muf fler (33) from the gun handle and
replace with a new muffler.
5.
Insert a 3.18 mm (0.125 in.) rod into one of the
holes in the valve check retainer (29) and pry it out of
the bracket (28). Be ready to catch the ball (31) and
spring (30) as the valve check retainer (29)
is
removed.
6.
Install a new ball (31) and spring (30) in the
bracket (28). Snap the valve check retainer (29) back
into place on the bracket.
7.
Attach the bracket (28) and bulkhead retainer
(75) to the gun handle with the screw (22).
8.
Install a new filter (26) in the adapter (24).
9.
Install the fluid fitting (25). There will be a small
space between the hexes of the fitting and adapter;
do not over tighten them.
32a
33
Apply
sealant
to outside
surface
24
75
28
31
KEY
22
24
25
26
28
29
30
31
32a
33
75
Screw
Adapter
Fluid Inlet Fitting
Fluid Filter
Bracket
Valve Check Retainer
Spring
Ball
Air Inlet Fitting
Muffler
Bulkhead Retainer
30
29
26
25
Fig 25
REPAIR KITS
Repair Kits must be purchased separately.
Use only GENUINE GRACO PARTS AND ACCESSORIES.
WARNING
When servicing use only genuine Graco replacement parts.
Use of other parts or any modification of the gun could alter
the grounding continuity of the gun or cause parts to rupture
and result in serious injury , fire, explosion, electrostatic
shock, or property damage.
NOTE: The Ref. Nos. shown in the kits below correspond to the reference numbers used in the parts list on page 25. For
the best results, use all the parts in the kit, even if the old parts still look good.
High Air Flow Restrictor Kit 220–493
Optional Air Cap 220–535
Use with standard air cap 223–167. Includes:
MUST be used with Low Air Flow Restrictor Kit
223–830, at left. Must order separately.
Ref
No.
Part No.
Description
100
101
102
179–994
107–414
100–172
RESTRICTOR
SPRING, compression
BALL; 3/16” diameter
Qty
2
2
2
Low Air Flow Restrictor Kit 223–830*
Includes:
Ref
No.
Part No.
Description
100
101
102
180–763
107–414
100–172
RESTRICTOR
SPRING, compression
BALL; 3/16” diameter
Qty
*MUST also order Air Cap 220–535.
101
100
Includes:
Ref
No.
Part No.
Description
1b
2
3a
3c
4
13a
20a
37
46
53
56
107–106
107–107
106–555
177–156
179–387
183–459
164–769
103–648
103–557
106–901
103–338
O–RING, buna–N
REGULATOR, disc
O–RING, fluorocarbon
O–RING, Viton
GASKET, housing
WASHER, non-metallic
WASHER, PTFE O-RING, Viton
O-RING, Viton
O-RING, PTFE
O-RING, Viton
Qty
2
1
1
1
1
1
2
2
1
1
1
102
HOW TO ORDER REPLACEMENT PARTS
1.
To be sure you receive the correct replacement parts,
kits or accessories, always give all of the information
requested in the chart below.
2.
Check the parts list to identify the correct part number;
do not use the ref. no. when ordering.
3.
Order all parts from nearest Graco distributor.
6 digit
Part
Number
2
2
2
Spray Gun Repair Kit 218–752
Qty
SERVICE INFORMATION
The manual was revised to add Round Pattern Tip/Cap
Kits to the SPRAY TIP SELECTION CHART.
Part Description
PARTS DRAWING
37*
Part No. 218–668, Series B
Model PRO AA4000 Gun
2*
38
32
57
34
55
37*
41
42
1b*
50
43
54
51
1a
3b
40
52
39
53*
33
1
Apply Loctite
801-21. Torque to
3.4 Nm (25 in-lb)
REF 28
19
76 77
31
30
29
11
12
13
13a*
14
*4
9
5
21
17a
REF 17
9a
45
44
*20a
22
17
20
Ref No 63, Tool Kit
Includes items 63a–63g
63c
*20a
63b
REF 32
63g
28
75
24
26
63f
63d
63a
25
48
47
32a–
*3a
9b
49
46*
*3c
3
56*
PARTS LIST
REF
NO.
PART NO.
DESCRIPTION
1
218–111
POWER CARTRIDGE; Includes
items 1a and 3
ALTERNATOR, turbine; Includes
item 1b
O–RING, buna–N
REGULATOR, disc
POWER SUPPLY; Includes
items 3a. 3b, and 3c
O–RING, fluorocarbon
SPRING, compression
O–RING, Viton
GASKET, housing
LABEL, warning
BARREL, gun; Includes item 9a
PLUG, M3 x 0.5 x 6
CUSHION
NUT, retaining, air cap
AIR CAP (see page 23 for optional
low air flow air cap)
SPRAY TIP, fluid; 0.279 mm (0.011”)
Includes item 13a. See page 30
for other part numbers
WASHER, non-metallic
HOUSING, ball seat; (includes resistor)
NEEDLE, fluid; Includes item 17a
NUT, adjustment
TRIGGER
TUBE, fluid, nylon; Includes item 20a
WASHER, PTFE NUT, mach, hex; M4 x 0.7
SCREW, mach, cross pan hd; M5 x 12
RETAINER, filter
CONNECTOR, fluid
FILTER, tip, 0.005
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
1a
217–591
1b*
2*
3
107–106
107–107
218–041
3a*
3b
3c*
4*
5**
9
9a
9b
11
12
106–555
178–504
177–156
179–387
179–790
220–963
176–921
186–127
218–695
223–167
13
219–411
13a*
14
17
17a
19
20
20a*
21
22
24
25
26
28
29
30
31
32
32a
33
34
37*
183–459
220–613
218–697
176–938
186–473
218–713
164–769
105–689
180–624
180–728
180–706
205–264
181–380
180–621
108–046
101–435
218–716
179–400
180–623
104–765
103–648
QTY
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
REF
NO.
PART NO.
DESCRIPTION
38
39
40
41
42
43
44
45
181–326
105–681
181–383
100–172
107–414
179–994
218–179
107–100
46*
47
48
49
50
51
52
53*
54
55
56*
57
58**
59**
62
63
63a
63b
63c
63d
63f
63g
75
76
77
78**
103–557
180–713
180–714
181–328
102–268
181–327
180–735
106–901
215–890
107–029
103–338
179–391
180–060
180–063
180–209
220–614
105–749
177–732
181–095
183–107
107–460
218–751
180–143
177–128
107–400
179–791
VALVE, air
RING, retaining, external
SEAL, valve, acetal
BALL; 3/16” dia.
SPRING, compression
RESTRICTOR
LIGHT, indicator, ES
SCREW, cap, socket hd;
M5 x 0.8 x 12
O-RING, Viton
HOUSING, valve
SCREW, adjusting
NUT, cap; No. 10–32, nylon
WASHER, wave
LEVER, valve
GUIDE, stem
O-RING, PTFE
VALVE, air
SPRING, compression
O-RING, Viton
RETAINER, spring
SIGN, warning, English (not shown)
SIGN, warning, Spanish (not shown)
COVER, gun (not shown)
TOOL KIT; Includes items 63a–63g
BRUSH, cleaning
WRENCH, nut, packing
TOOL, pressing
WRENCH, ball seat housing
WRENCH, barrel
ELECTRODES, box of 10
RETAINER, bulkhead
SPACER
SCREW, trigger
TAG, warning (not shown)
QTY
1
1
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
2
1
*Included in Repair Kit 218–752. See page 23.
**Extra warning tags, labels, and signs are available at no
charge from Graco.
See page 23 for “How to Order Replacement Parts”.
WARNING
When servicing use only genuine Graco replacement parts. Use of other parts or any modification
of the gun could alter the grounding continuity of
the gun or cause parts to rupture and result in serious injury, fire, explosion, electrostatic shock, or
property damage.
ACCESSORIES
Accessories must be purchased separately.
Use only GENUINE GRACO PARTS AND ACCESSORIES.
WARNING
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.
AIR LINE ACCESSORIES
Air Adapter Nipple 185–493
Grounded Air Supply Hose
For connecting two or more grounded gun air supply
hoses. 1/4 npt x 1/4 npsm (left-hand thread)
7 bar (100 psi) MAXIMUM WORKING PRESSURE
8 mm (0.315 in.) ID; 1/4 npsm(f) x 1/4 npsm(f) LH;
Color coded black
High Volume Air Regulator 206–199
FM Approved
Part No.
Length
0–9 bar (0–125 psi) Regulated Pressure
14 bar (200 psi) Steel Pressure Gauge
1/2 npt(f) inlet and outlet
220–444
218–100
218–101
218–102
218–103
220–119
220–120
1.8 m (6 ft)
5 m (15 ft)
8 m (25 ft)
11 m (36 ft)
15 m (50 ft)
23 m (75 ft)
30.5 m (100 ft)
Air Pressure Regulator 104–267
Grounded Air Supply Hose
FM Approved
7 bar (100 psi) MAXIMUM WORKING PRESSURE
8 mm (0.315 in.) ID; 1/4 npsm(f) x 1/4 npsm(f) LH;
Color coded gray; More flexible than black hose
Part No.
Length
223–068
223–069
223–070
223–071
223–072
223–073
223–074
1.8 m (6 ft)
5 m (15 ft)
8 m (25 ft)
11 m (36 ft)
15 m (50 ft)
23 m (75 ft)
30.5 m (100 ft)
20 bar (300 psi) MAXIMUM WORKING PRESSURE
1/2 npt(f) inlet and outlet
Air Pressure Gauge 101–180
0–14 bar (0–200 psi) Regulated Pressure
Air Filter & Moisture Separator
17.5 bar (250 psi) MAXIMUM WORKING PRESSURE
For cleaning and drying air in air spray system.
20 micron element, 5 oz. bowl capacity
106–148 3/8 npt(f)
106–149 1/2 npt(f)
Grounded Air Supply Hose
100 psi (7 bar) MAXIMUM WORKING PRESSURE
8 mm (0.315 in.) ID; 1/4 npsm(f) x 1/4 npsm(f) LH;
Color coded red; Stainless steel braid ground path
Part No.
Length
235–068
235–069
235–070
235–071
235–072
235–073
235–074
1.8 m (6 ft)
5 m (15 ft)
8 m (25 ft)
11 m (36 ft)
15 m (50 ft)
23 m (75 ft)
30.5 m (100 ft)
Quick Disconnect Coupling Assy. 110–806
FM Approved
Includes a quick disconnect coupling insert, which
replaces air inlet fitting 179–400, and a shut-off coupling
body (left-hand thread), which connects to the grounded
air hose.
Air Line Lubricator
17.5 bar (250 psi) MAXIMUM WORKING PRESSURE
214–847 3/8 npt(f)
214–848 1/2 npt(f)
Bleed-type Master Air Valve 107–141
21 bar (300 psi) MAXIMUM WORKING PRESSURE
Relieves air trapped in the air line
between the paint pump air motor
and this valve when closed. 3/4 npt
ACCESSORIES
FLUID LINE ACCESSORIES
High Pressure Ball Valves
Fluid Hose Assemblies
FM Approved
207 bar (3000 psi) MAXIMUM WORKING PRESSURE
Nylon tube, Urethane Cover
Part No. ID
Length
214–700
214–701
214–699
214–698
214–697
214–638
214–635
214–636
4.8 mm (3/16 in)
4.8 mm (3/16 in)
4.8 mm (3/16 in)
4.8 mm (3/16 in)
4.8 mm (3/16 in)
6.4 mm (1/4 in)
6.4 mm (1/4 in)
6.4 mm (1/4 in)
0.61 m (2 ft)
0.91 m (3 ft)
1.8 m (6 ft)
7.6 m (25 ft)
15.2 m (50 ft)
0.4 m (14 in)
0.6 m (2 ft)
0.9 m (3 ft)
214–629
210–540
210–541
6.4 mm (1/4 in)
6.4 mm (1/4 in)
6.4 mm (1/4 in)
Thread Size
1/4 npsm(f)
1/4 npsm(m x f)
1/4 npsm(f)
1/4 npsm(f)
1/4 npsm(f)
1/4 npsm(f)
1/4 npsm(f)
1/4 npsm(f) x
1/4 npt(m)
4.6 m (15 ft) 1/4 npsm(f)
7.6 m (25 ft) 1/4 npsm(f)
15.2 m (50 ft) 1/4 npsm(f)
350 bar (5000 psi) MAXIMUM WORKING PRESSURE
Install in outlets for individual fluid line control or install in
bottom of filter bowl as fluid drain valve.
Part No.
Description
210–657
210–658
210–659
214–037
1/2 npt(m), Viton seals
3/8 npt(m), Viton seals
3/8 x 1/4 npt(m), Viton seals
1/4 npt(m), PTFE seals
PUMP & SPRAY SYSTEM ACCESSORIES
10:1 Ratio Monark Pump 217–523
66 bar (950 psi) MAXIMUM WORKING PRESSURE
Pump Suction Hose 214–960
Pail Suction Tube 165–767
Corrosion Resistant Fluid Hose 224–551
Drum Suction Tube 206–266
PTFE tube, SST cover, SST couplings
Cart 208–210
207 bar (3000 psi) MAXIMUM WORKING PRESSURE
6.4 mm (1/4 in.) ID, 483 mm (19 in.) long, 1/4 npsm(f)
SST Fluid Pressure Regulator 222–121
105 bar (1500 psi) MAXIMUM FLUID INLET PRESSURE
10.5–84 bar (150–1200 psi) REGULATED PRESSURE
SST Fluid Pressure Regulator 217–576
0–70 bar (0–1000 psi) REGULATED PRESSURE
To convert Standard Fluid Pressure Regulator
206–661 to 70 bar (1000 psi) Maximum Working
Pressure, order the following parts:
Part No.
Description
501–511
101–696
Compression Spring
Fluid Pressure Gauge
0–70 bar (0–1000 psi) range
Fluid Filters
207 bar (3000 psi) MAXIMUM WORKING PRESSURE
Part No.
Description
214–570
218–029
With aluminum bowl and support
With carbon steel bowl and support
Stainless Steel Screens
Part No.
Description
167–024
167–025
167–026
167–027
595 micron (30 mesh)
250 micron (60 mesh)
149 micron (100 mesh
74 micron (200 mesh)
Wall Bracket 206–220
Electrostatic System 230–987
Includes items:
Part No.
Description
218–668
218–101
Manual E/S Air-Assisted Airless Gun
Grounded Air Supply Hose (See
page 26 for specifications)
Fluid Hose (See page 26 for
specifications)
Air Filter
214–698
106–148
Pro AA4000 10:1 Ratio Monark Cart
System 230–984
Includes System 230–987, 10:1 Ratio Monark Pump,
Cart, and additional accessories
Pro AA4000 10:1 Ratio Monark Pail
System 230–985
Includes system 230–987, 10:1 Ratio Monark Pump, and
additional accessories
Pro AA4000 10:1 Ratio Monark Wall
Mount System 230–986
Includes system 230–987, 10:1 Ratio Monark Pump,
Wall Bracket, and additional accessories
ACCESSORIES
MISCELLANEOUS ACCESSORIES
Paint Resistance Meter 722–886
Compression Spring 105–673
For increased shut-off force when spraying plural
component materials.
Used with 722–860 Paint Probe to measure
resistance of paint.
Not for use in Hazardous areas.
105–673
Paint Probe 722–860
Used with 722–886 Paint Resistance Meter to
measure resistance of paint.
Not for use in Hazardous areas.
Megohmmeter 218–979
Grounding Clamp And Wire 222–011
500 Volt output; 0.01–2000 megohms
Not for use in Hazardous areas.
12 ga, 25 ft (7.6 m) wire
Gun Cover 218–374
Warning Signs
Electrode Wires 218–751
Available from Graco at no extra charge.
Must be ordered separately.
Package of 10 disposable gun covers.
Box of 10 replacement electrode wires for spray tip.
FM Approved
Part No.
Description
180–060
180–061
180–062
180–063
Warning Sign (English)
Warning Sign (French)
Warning Sign (German)
Warning Sign (Spanish)
IMPORTANT PHONE NUMBERS
TECHNICAL DATA
TO PLACE AN ORDER , contact your Graco distributor, or call this number to identify the distributor closest
to you:
1–800–328–0211 Toll Free
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.87 Kg (1.90 lb)
Gun Length . . . . . . . . . . . . . . . . . . . . . 310 mm (12.25 in.)
Maximum Working Fluid Pressure . . . 66 bar (950 psi)
Maximum Working Air Pressure . . . . . . . 7 bar (100 psi)
Voltage Operating Range . . . . . . . . . . . . . . . . 0 to 75 KV
Air Inlet . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npsm(m) L.H.
Fluid Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4–18.6 (m)
Wetted Parts . . . . . . Stainless Steel, Acetal, UHMW
Polyethylene, Nylon, Carbide,
PTFE , Delrin
FOR TECHNICAL ASSISTANCE, service repair information or assistance regarding the application of Graco
equipment: 1–800–543–0339 Toll Free
PTFE , Viton, and Delrin
Loctite is a registered trademark of the Loctite Corp.
AIR FLOW CHART
AIR FLOW WITH THE FAN ADJUSTMENT SET FOR THE WIDEST PATTERN AND THE TURBINE ON
16
AIR CONSUMPTION (SCFM)
14
AIR CAP 223–167
12
10
8
AIR CAP 220–535
6
4
2
0
0
10
20
30
40
50
60
70
80
GUN INLET PRESSURE (PSI)
NOTES:
Air Cap 223–167 requires use of Standard Restrictor, part no. 179–994.
Air Cap 220–535 MUST be used with Low Air Flow Restrictor Kit, part no. 223–830 (see page 23).
Air flow will increase if the fan adjustment valve is opened to temporarily reduce pattern size. Flows
will reach 24 SCFM at 80 psi (5.6 bar) with Air Cap 223–167.
307-706 29
SPRAY TIP SELECTION CHART
Fan Width at
300 mm (12 in.)
Orifice Size
mm (in.)
mm (in.)
ml/min (fl oz/min)
219–107
50–100 (2–4)
0.178 (0.007)
100 (3.4)
219–207
100–150 (4–6)
219–307
150–200 (6–8)
219–407
200–250 (8–10)
219–209
100–150 (4–6)
0.229 (0.009)
200 (6.8)
219–309
150–200 (6–8)
219–409
200–250 (8–10)
219–211
100–150 (4–6)
0.279 (0.011)
300 (10.1)
219–311
150–200 (6–8)
219–411
200–250 (8–10)
219–511
250–300 (10–12)
219–611
300–350 (12–14)
219–213
100–150 (4–6)
0.330 (0.013)
400 (13.5)
219–313
150–200 (6–8)
219–413
200–250 (8–10)
219–513
250–300 (10–12)
219–613
300–350 (12–14)
219–215
100–150 (4–6)
0.381 (0.015)
500 (16.9)
219–315
150–200 (6–8)
219–415
200–250 (8–10)
219–515
250–300 (10–12)
219–615
300–350 (12–14)
219–217
100–150 (4–6)
0.432 (0.017)
700 (23.7)
219–317
150–200 (6–8)
219–417
200–250 (8–10)
219–517
250–300 (10–12)
219–617
300–350 (12–14)
Part Number
Light to Medium
Viscosity*
Heavy Viscosity
liters/min ((fl oz/min)
500 (16.9)
SPRAY TIP SELECTION CHART
Part Number
Fan Width at
300 mm (12 in.)
Orifice Size
Light to Medium
Viscosity*
Heavy
Viscosity*
mm (in.)
mm (in.)
ml/min (fl oz/min)
liters/min ((fl oz/min)
0.483 (0.019)
800 (27.0)
600 (20.3)
0.533 (0.021)
1000 (33.8)
800 (27.0)
0.584 (0.023)
1200 (40.6)
970 (32.8)
0.635 (0.025)
1500 (50.7)
1200 (40.6)
219–319
150–200 (6–8)
219–419
200–250 (8–10)
219–519
250–300 (10–12)
219–619
300–350 (12–14)
219–719
350–400 (14–16)
219–421
200–250 (8–10)
219–521
250–300 (10–12)
219–621
300–350 (12–14)
219–721
350–400 (14–16)
219–821
400–450 (16–18)
219–423
200–250 (8–10)
219–523
250–300 (10–12)
219–623
300–350 (12–14)
219–723
350–400 (14–16)
219–823
400–450 (16–18)
219–425
200–250 (8–10)
219–525
250–300 (10–12)
219–625
300–350 (12–14)
219–725
350–400 (14–16)
219–825
400–450 (16–18)
*Fluid Output at 41 bar (600 psi).
The fluid output (Q) at other pressures (P) can be calculated by this formula: Q= (0.041) (QT) ( P )
Where QT = Fluid output (fl oz/min) 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. The maximum orifice size is 0.635 mm (0–025 in).
Spray Tip Selection Chart continued on next page.
307-706 31
SPRAY TIP SELECTION CHART
Round Pattern Kits
Kit
Part No.
Spray–Tip
Part No.
Kit
(see chart)
Tip Size
in. (mm)
218–695
222–603
222–151
0.017 (0.432)
222–604
222–152
0.011 (0.279)
222–605
222–153
0.013 (0.330)
222–606
222–154
0.015 (0.381)
224–045
222–159
0.009 (0.229)
185–483
(not included)
(included with tip)
Spray Tip
(see chart)
185–568
183–906
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 sale, repair or replace any part of the equipment proven defective. This warranty applies only when the 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 non–Graco component parts. Nor shall
Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not
supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an
authorized Graco distributor for verification of 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 costs
of parts, labor and transportation.
DISCLAIMERS AND LIMITATIONS
THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER WARRANTIES (EXPRESS
OR IMPLIED), INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AND OF ANY NON–CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR
CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSL Y EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S LIABILITY EXCEED THE AMOUNT OF THE
PURCHASE PRICE. ANY ACTION FOR BREACH OF WARRANTY MUST BE BROUGHT WITHIN TWO (2) YEARS OF THE DATE OF SALE.
EQUIPMENT NOT COVERED BY GRACO WARRANTY
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
These items sold, but not
manufactured by Graco (such 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 these warranties.
RESPECT TO ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO.
Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, Mt. Arlington (N.J.)
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan; Korea
GRACO INC.
P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 307–706 12–84 Revised 5–92

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