Graco Inc Paint Sprayer 218 745 User Manual

INSTRUCTIONS–PARTS LIST  
307–712  
Rev  
P
N
Supersedes  
This manual contains IMPORTANT  
W
ARNINGS AND INSTRUCTIONS  
READ AND RETAIN FOR REFERENCE  
Model PRO 5000  
t
AUTOMATIC MID-RANGE ELECTROSTATIC  
AIR SPRAY GUN  
7
bar (100 psi) MAXIMUM WORKING AIR PRESSURE  
Part Number 218–745, Series B  
With 1.2 mm (0.047 in.) spray nozzle and part no. 218–996 air cap assembly  
U.S. Patent No. 4,290,091; 4,219,865; 4,462,061; 4,497,447; 4,660,774; 4,554,622  
U.K. Patent No. 2,140,327B; 2,142,559B; 2,147,158; 2,191,423  
Patented 1986, 1987 Canada  
Brevete 1986, 1987  
French Patent No. 84 07942; 84 10234  
Italian Patent No. 1,111,380  
Japanese Patent No. 86. 07416  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
E
COPYRIGHT 1985, GRACO INC.  
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TABLE OF CONTENTS  
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3
Electrical Tests  
est Gun Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
T
.
Safety arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4, 5  
W
Test Power Supply Resistance  
Test Resistor Stud Resistance  
.
.
. . . . . . . . . . . . . . . . . 16  
. . . . . . . . . . . . . . . . . 17  
How The Electrostatic Air Spray Gun Works . . . .  
5
Service  
Installation  
Gun Disassembly  
Electrode Replacement  
Resistor Stud Replacement  
Barrel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Fluid Needle Packing Replacement . . . . . . . . . . . . . 20  
Power Cartridge Replacement . . . . . . . . . . . . . . . . . 22  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
. . . . . . . . . . . . . . . . . . . . . . . 18  
. . . . . . . . . . . . . . . . . . . . 19  
Typical Installation  
Warning Signs  
Ventilate the Spray Booth  
Mount the Gun  
Connect the Air Line  
Connect the Fluid Line  
Check the Electrical Grounding  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . .  
6
6
6
7
7
7
8
8
.
.
.
.
.
.
.
.
.
.
Turbine Alternator Removal  
Fan Air Valve Replacement  
Piston Removal and Repair  
.
.
.
. . . . . . . . . . . . . . . . . . . . 23  
. . . . . . . . . . . . . . . . . . . . 23  
. . . . . . . . . . . . . . . . . . . . 24  
.
Installing Optional Remote Fan Air Adapter  
.
. . . . . . .  
Operation  
Disc Regulator O-Ring Replacement  
.
. . . . . . . . . . . . 25  
Operating Checklist  
Filter the Fluid  
Spraying Operation  
Selecting a Fluid Nozzle and Air Cap  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . .  
9
9
9
9
Muffler Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
.
.
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
.
.
.
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
Adjust the Spray Pattern  
.
. . . . . . . . . . . . . . . . . . . . . . 10  
Maintenance  
Daily Care and Cleaning  
.
. . . . . . . . . . . . . . . . . . . . . . 11  
Technical Data  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
. . . . . . . . . . . . . . 29  
Flush the Spray Gun  
.
. . . . . . . . . . . . . . . . . . . . . . . . . . 11  
. . . 12  
How To Order Replacement Parts  
.
To Clean or Change Air Cap and Fluid Nozzle  
.
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30, 31  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover  
Spray Pattern Troubleshooting Chart . . . . . . . . . . 13  
Gun Operation Troubleshooting Chart . . . . . . . . . 14  
Electrical Troubleshooting Chart . . . . . . . . . . . . . . 15  
TERMS  
WARNING: Alerts user to avoid or correct conditions that could  
cause bodily harm.  
PRESSURE RELIEF PROCEDURE: A safety procedure for re-  
lieving 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.  
307-712  
3
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SAFETY  
WARNINGS  
SERIOUS BODILY INJURY, EXPLOSION, FIRE, OR ELECTRIC SHOCK CAN  
OCCUR IF THE PRECAUTIONS BELOW ARE NOT FOLLOWED.  
READ AND UNDERSTAND ALL INSTRUCTION MANUALS, TAGS, AND  
WARNING LABELS BEFORE OPERATING EQUIPMENT.  
ELECTROSTATIC EQUIPMENT SHALL ONLY BE USED BY TRAINED,  
QUALIFIED PERSONNEL WHO SHALL BE FULLY CONVERSANT WITH THE  
REQUIREMENTS STATED WITHIN THIS INSTRUCTION MANUAL.  
EQUIPMENT MISUSE HAZARD  
General Safety  
Fluid Compatibility  
BE SURE all fluids and solvents used are chemically compatible with the  
“Wetted Parts” shown in the TECHNICAL DATA. Always read the fluid  
Any misuse of the spray equipment or accessories, such as overpres  
surizing, modifying parts, using incompatible chemicals and fluids, or us  
ing worn or damaged parts, can cause them to rupture and result in seri  
ous bodily injury, fire, explosion or property damage.  
-
-
-
and solvent manufacturer  
this gun.  
s literature before using the fluid or solvent in  
NEVER point the spray gun at anyone or at any part of the body. NEVER  
put hand or fingers over the fluid nozzle.  
Pressure Relief Procedure  
To reduce the risk of serious bodily injury, including splashing in the eyes  
or on the skin, injury from moving parts or electric shock, always follow  
this procedure when shutting off the system, when checking or servicing  
any part of the spray system, when installing, cleaning or changing fluid  
nozzles, and whenever you stop spraying.  
ALWAYS follow the Pressure Relief Procedure, at right, before cleaning  
or removing the fluid nozzle or servicing any system equipment.  
NEVER try to stop or deflect leaks with your hand or body  
.
1.  
2.  
T
urn off all the air to the gun except the cylinder (actuating) air  
.
NEVER alter or modify any part of this equipment; doing so could cause it  
to malfunction.  
Turn off the fluid supply to the gun.  
3. Actuate the gun into a grounded metal waste container to relieve fluid  
pressure.  
CHECK all spray equipment regularly and repair or replace worn or dam  
aged parts immediately  
-
4. Open the pump drain valve, having a waste container ready to catch  
the drainage.  
.
5. Leave the pump drain valve open until you are ready to spray again.  
System Pressure  
This gun has a maximum working air and fluid pressure of 7 bar (100 psi).  
Never exceed the maximum working pressure of the gun or any other  
component or accessory used in the system.  
HAZARDOUS FLUID HAZARD  
Improper handling of hazardous fluids or inhaling vapors can cause ex  
tremely serious bodily injury, even death, due to splashing in the eyes,  
ingestion, inhalation, or bodily contamination.  
-
2. Dispose of any waste fluid according to all Local, State and Federal  
regulations pertaining to the disposal of hazardous wastes.  
3. Read and follow the fluid and solvent manufacturer’s literature  
regarding the use of protective clothing and equipment such as eye  
protection, respiratory protection, and gloves.  
Be sure you know what fluid you are pumping and its specific hazards.  
Observe all precautions when handling known or potentially hazardous  
fluids, including, but not limited to, the following.  
4. Provide for the safe piping and disposal of all exhaust air  
.
5. Provide proper ventilation in accordance with accepted industry  
standards and governmental regulations. Refer to Ventilate the  
Spray Booth, on page 6.  
1. Store hazardous fluids in approved containers.  
HOSE SAFETY  
TIGHTEN all fluid connections securely before each use.  
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.  
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  
.
4
307-712  
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FIRE OR EXPLOSION HAZARD  
To reduce the risk of fire, explosion, or electric shock, which may result  
from electrical discharge, it is essential that:  
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.  
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.  
S
All parts of the electrostatic system are properly grounded.  
S
All personnel in or close to the spray area are properly grounded.  
S All electrically conductive objects or devices in the spray area, includ  
-
ing paint containers, wash cans and tools, are properly grounded.  
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.  
When operating the electrostatic device, any ungrounded objects in the  
spray area (such as people, containers, tools, etc.) can become electri  
cally charged. Arcing may occur if these objects then come in contact or  
close to ground. Arcing of sufficient energy levels can ignite the fluid be  
ing sprayed, fumes from solvents, dust particles, and other flammable  
substances. This can cause a fire or explosion and result in serious bod  
ily injury and property damage.  
-
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 Pres-  
sure Relief Procedure on page 4.  
Static electricity can also be generated by the flow of fluid through the  
pump, hose, gun, and nozzle, but it is dissipated through proper ground  
ing as described in Grounding below  
-
.
If you experience any arcing or feel even a slight shock, STOP SPRAY-  
ING IMMEDIATELY. Check for proper grounding of the entire system. Be  
sure you have corrected the problem before starting to spray again.  
Be sure the turbine air (electrostatics) 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  
.
Grounding  
The following are minimum requirements for grounding a basic electro  
-
static 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.  
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).  
1. Pump: ground by using a ground wire and clamp as described in  
your separate pump instruction manual.  
ALWAYS remove all solvent from the system before reactivating the  
spray gun.  
2. Air compressors and hydraulic power supplies: ground according to  
the manufacturers recommendations.  
Use only non-sparking tools to clean residue from the booth and hangers.  
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  
.
Ventilate the Spray Booth  
To prevent hazardous concentrations of toxic and/or flammable vapors,  
spray only in a properly ventilated spray booth.  
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.  
NEVER operate the spray gun unless the ventilating fans are operating.  
5. All electrically conductive objects or devices in the spray area,  
including paint containers and wash cans, must be properly  
grounded.  
Check and follow all National, State and Local codes regarding air ex  
-
haust velocity requirements. Check and follow all local safety and fire  
codes and OSHA standard 1910–107(b)(5)(i).  
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.  
HOW THE ELECTROSTATIC AIR SPRAY GUN WORKS  
The air hose supplies air to the spray gun. Part of the air  
operates the turbine and the rest of the air atomizes the  
fluid being sprayed. The turbine generates power, which  
is converted by the power cartridge, to supply high  
voltage current to the gun’s ionizing electrode.  
The pump supplies fluid to the hose and gun, where the  
fluid is electrostatically charged as it passes the elec-  
trode. The charged fluid is attracted to the grounded  
workpiece, wrapping around and evenly coating all sur-  
faces.  
307-712  
5
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TYPICAL INSTALLATION  
Electric Box  
Main Air Line  
P
Fluid Line  
A
J
L
J
Q
KEY  
A
B
C
D
E
Air Supply Shut-off Valve (bleed-type)  
Air & Water Separator  
Ball Valve  
Air Line Lubricator  
Air Regulator  
F
Pump  
Fluid Filter  
Drain Valve  
Pump Ground Wire  
Air Filter (40 micron)  
L
N
P
Fluid Regulator  
ES Automatic Gun  
G
H
J
Normally Closed, 3-Way Air Solenoid  
alve or 3-Way Manual Valve  
Exhaust Hose  
V
K
Q
The Typical Installation shown above is only a guide for  
selecting and installing electrostatic air spray systems. 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.  
Ventilate the Spray Booth  
WARNING  
To prevent hazardous concentrations of toxic and/  
or flammable vapors, spray only in a properly ven  
-
tilated 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.  
WARNING  
Installing and servicing this equipment requires ac-  
cess to parts which may cause electric 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.  
.
Check and follow all of the National, State and Lo  
cal codes regarding air exhaust velocity require-  
ments.  
-
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.  
Check and follow all local safety and fire codes and  
OSHA standard 1910–107(b)(5)(i).  
NOTE: High velocity air exhaust will decrease the oper  
-
ating efficiency of the electrostatic system. The  
minimum allowable air exhaust velocity is 19 lin  
ear meters/minute (60 ft/min).  
-
Warning Signs  
A
warning sign in English and one in Spanish is supplied  
with the gun. Mount warning signs in the spray area  
where they can easily be seen and read by all operators.  
This sign is also available in French and German. See the  
ACCESSORIES section to order  
.
6
307-712  
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INSTALLATION  
6. Connect the cylinder air line to the gun’s cylinder air  
Mount the Gun  
Mount the gun on a stationary support or on a reciprocat  
inlet (marked CYL).  
-
ing arm. The mounting rod must be properly grounded.  
7. Connect the atomizing air line to the gun’s atomizing  
air inlet (marked ATOM).  
Mount the gun so the front of the gun is 254 to 300 mm (10  
to 12 in.) from the work piece.  
8. Connect the turbine air supply line to the gun’s air in  
-
let (marked ES). The gun air inlet fitting has a left  
hand thread. Connect the air supply hose ground  
wire to a true earth ground.  
Connect the Air Line (Refer to the Typical  
Installation Drawing)  
WARNING  
To reduce the risk of electric shock or other serious  
9. A remote fan air adapter is available to control the fan  
air at the control booth. See Installing the Optional  
Remote Fan Air Adapter, on page 8.  
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 special threads which pre  
vent using any other type of hose with the gun. See  
-
Connect the Fluid Line (Refer to the Typical  
Installation Drawing)  
the ACCESSORIES section to order the hose.  
1. Before connecting the fluid line, blow it out with air  
and flush it with solvent. Use solvent which is com-  
patible with the fluid to be sprayed.  
1. Install an air line filter (K) and an air and water sepa  
-
rator (B) on the main air line to ensure a dry, clean air  
supply to the gun. Dirt and moisture can ruin the ap  
pearance of your finished workpiece and can cause  
the gun to malfunction.  
2. Install a fluid regulator (L) on the fluid line to control  
fluid pressure to the gun.  
-
3. Install a fluid filter (G) and drain valve (H) at the pump  
outlet.  
2. Install an air line lubricator (D) close to the pump air  
inlet.  
WARNING  
The fluid drain valve (H) is required in your system  
3. Install a normally closed, 3-way air solenoid (P) or  
manual valve on the turbine, cylinder and remote fan  
air supply lines. (The remote fan line is optional.)  
to assist in relieving fluid pressure in the displace  
-
ment pump, hose and gun; triggering the gun to  
relieve pressure may not be sufficient. Install a  
drain valve close to pump’s fluid outlet. The drain  
4. Install a bleed-type air regulator (E) on the pump,  
turbine, atomizing, cylinder, and remote fan (option-  
al) air supply lines to control air pressure to the pump  
and gun.  
valve reduces the risk of property damage or seri  
-
ous bodily injury, including splashing in the eyes or  
on skin and contamination from hazardous fluids.  
5. Install a bleed-type air shutoff valve (A) on the main  
air line, the pump line, and each gun air supply line to  
shut off air to the pump and gun.  
4. Connect the fluid line to the gun fluid inlet.  
CAUTION  
Do not use metal fittings at the gun barrel. For cir  
culation systems, use plastic fittings.  
-
WARNING  
The bleed–type air shutoff valve (A) 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.  
7
307-712  
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INSTALLATION  
KEY  
Check the Electrical Grounding  
Y
Z
Turbine Air Inlet  
rue Earth Ground  
WARNING  
T
Proper electrical grounding of every part of your  
AA Ohmmeter  
system is essential. For your safety, read the warn  
-
BB Grounded Air Hose  
ing section, FIRE OR EXPLOSION HAZARD, on  
page 5. Ground the system as explained there.  
AA  
Z
Then check your system as explained below  
.
1. Shut off all air lines to the gun.  
2. Shut off the fluid supply to the gun.  
BB  
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 and properly grounded, use a  
megohmmeter (AA) (shown in ACCESSORIES  
section) to measure the resistance between the  
gun body (Y) and a true earth ground (Z). Use an  
applied voltage of 500 volts minimum to 1000  
volts maximum. See Fig 1.  
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 resis-  
tance is still greater than 2 megohms, replace  
the air supply hose.  
Fig 1  
2. Apply PTFE tape to the threads of the remote fan air  
adapter (part no. 181–053) and install it in the gun  
body (1). Torque the adapter to 1.1–1.4 N  
in-lb).  
Sm (10–12  
Installing Optional Remote Fan Air Adapter  
NOTE: See ACCESSORIES to order the Remote Fan  
3. Install the 90_ elbow (part no. 108–234) in the  
Air Adapter 181–053 and 90 Elbow 108–234.  
_
adapter.  
1. Place a wrench on the flats of the valve housing (55)  
and remove the fan air valve assembly from the gun  
body (1). See Fig 20, page 23.  
4. Install the remote fan air line, solenoid valve, air regu  
-
lator and shut-off valve as instructed in Connect the  
Air Lines, on page 7.  
8
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OPERATION  
WARNING  
Pressure Relief Procedure  
2. Turn off the fluid supply to the gun.  
To reduce the risk of serious bodily injury, including  
splashing in the eyes or on the skin, injury from moving  
parts or electric shock, always follow this procedure  
3. Trigger the gun into a grounded metal waste con  
-
tainer to relieve fluid pressure.  
when shutting off the system, when checking or serv  
-
4. Engage the gun safety latch.  
icing any part of the spray system, when installing,  
cleaning or changing fluid nozzles, and whenever you  
stop spraying.  
5. Open the pump drain valve, having a waste con-  
tainer ready to catch the drainage.  
1. Turn off all the air to the gun except the cylinder  
(actuating) air.  
6. Leave the pump drain valve open until you are  
ready to spray again.  
Operating Checklist  
Spraying Operation  
Check the following list daily, before starting to operate  
the system, to help ensure you of safe, efficient  
operation.  
This gun has a built-in lead and lag operation. The gun  
begins emitting air before the fluid is discharged. When  
you release the trigger, the fluid stops before the air flow  
stops. This helps prevent fluid build-up on the air cap.  
1. Be sure all operators are properly trained to  
safely operate an automatic air spray system.  
Adjust the system’s control device, if it is automatic, so  
the gun starts spraying just before meeting the work  
piece, and stops as soon as the work piece has passed.  
2. Be sure all operators are trained how to prop  
-
erly and completely relieve system pressure.  
When spraying, the ES indicator lights (BB) should glow  
indicating the electrostatic charge. See Fig 4.  
,
3. Be sure the system is thoroughly grounded.  
See FIRE OR EXPLOSION HAZARD, page  
5, and Check the Electrical Grounding,  
page 8.  
Selecting a Fluid Nozzle and Air Cap  
WARNING  
4. Be sure the operator and all persons entering  
To reduce the risk of serious bodily injury, including  
splashing in the eyes or on the skin or electric  
shock, always follow the Pressure Relief Proce-  
dure, above, before installing, or removing the fluid  
the spray area are properly grounded by wear  
-
ing shoes with conductive soles or personal  
grounding straps.  
nozzle/air cap assembly  
.
5. Be sure ventilation fans are operating prop-  
erly.  
This gun is supplied with fluid nozzle 181–299 and air cap  
180–739. See Instruction Manual 307–803 for air cap  
consumption and fluid nozzle flow rate information.  
6. Be sure the work piece hangers are clean and  
grounded. Contact points must be sharp  
points or knife edges.  
The fluid output and pattern shape depends on the fluid  
nozzle size, fluid viscosity, and fluid pressure. If your  
7. Be sure all refuse is removed from the spray  
booth.  
application requires a different nozzle and air cap combi  
-
nation, use manual 307–803 to select the appropriate  
fluid nozzle and air cap.  
8. Be sure all flammable liquids in the spray  
booth are in approved, grounded containers.  
9. Be sure all conductive objects within 6 m  
(20 ft) of the gun are electrically grounded and  
the floor of the spray area is electrically con-  
ductive and grounded.  
To install a different fluid nozzle and air cap, see To Clean  
or Change Air Cap and Fluid Nozzle, page 12.  
Filter the Fluid  
Filter the fluid to remove coarse particles and sediment  
which could clog the spray nozzle.  
307-712  
9
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OPERATION  
NOTE: Provide a 3.1 bar (45 psi) clean, dry, regulated air  
Adjust the Spray Pattern  
Follow the steps below to establish the correct fluid flow  
supply to the gun to ensure full voltage from the  
power supply. The gun may be operated at lower  
and air flow DO NOT turn the turbine air on yet.  
.
turbine air pressure, but may lose some electro  
-
static 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.  
1. Adjust the fluid flow for the appropriate flow rate by  
using the fluid pressure regulator installed in the fluid  
line. Check the fluid nozzle chart in manual 307–803  
for the appropriate flow rate for the air cap. Start with  
the lowest rate shown and increase it until you get the  
desired flow rate.  
NOTE: A remote fan air adapter is available to control  
the fan air at the control booth. See  
ACCESSORIES.  
2. For fine adjustment of how much fluid is sprayed,  
tighten or loosen the trigger adjusting nut (24). See  
Fig 4. Turn the nut out to reduce the amount of fluid  
sprayed or turn it in to increase the amount.  
See the Spray Pattern Troubleshooting Chart  
on page 13 to correct spray pattern problems.  
KEY  
24  
51  
56  
Trigger Adjusting Nut  
ES Indicator Light  
Fan Adjusting Knob  
3. Close the fan adjusting knob (56) by turning it fully  
clockwise.  
56  
51  
4. Use an air pressure regulator to adjust the degree of  
atomization. Always use the lowest air pressure pos  
-
sible for the most efficiency.  
5. Use the fan adjusting knob to change the shape of  
the spray pattern. Turn the knob counterclockwise  
for a wide pattern and clockwise for a solid, round  
pattern. When increasing to a wide, flat pattern, it  
may be necessary to increase the supply of fluid to  
the gun to maintain the same amount of coverage  
over a large area.  
Fig 4  
24  
6. First, complete all the checks under the Operating  
Checklist on page 9. Then turn the turbine air on.  
When spraying, the ES indicator light (51) should  
glow, indicating the electrostatic charge.  
10  
307-712  
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MAINTENANCE  
5. Flush the spray gun before changing fluids or colors  
and whenever you are done operating the gun. See  
Flush the Spray Gun  
Daily Care and Cleaning  
CAUTION  
.
Clean all parts with a non–conductive solvent,  
compatible with the fluid being sprayed. Conduc-  
tive solvents can cause the gun to malfunction.  
6. Check the electrode wire. Straighten if bent, and re  
-
place if broken or damaged. See Electrode  
Replacement.  
Do not use any cleaning method which may al  
low solvent into the gun air passages. Solvent  
left in the gun passages could result in a poor qual  
-
7. Clean the air cap and spray nozzle daily, minimum;  
some applications require more frequent cleaning.  
-
ity paint finish and may draw current and reduce  
the electrostatic effect. Point the gun down while  
cleaning to prevent dirty solvent from running back  
into the air passages. NEVER IMMERSE THE  
GUN IN SOLVENT.  
Replace the spray nozzle and air cap if they are dam  
aged. See To Clean or Change Air Cap and Fluid  
Nozzle.  
-
Flush the Spray Gun  
WARNING  
WARNING  
To reduce the risk of fire or explosion and serious  
bodily injury, the turbine air (electrostatics) must  
be off before flushing.  
For your safety, always follow the Pressure Relief  
Procedure Warning on page 9 when shutting off  
the system, when you stop spraying, and before  
checking, servicing, installing, cleaning or chang-  
ing any part in the system.  
1. Follow the Pressure Relief Procedure Warning on  
page 9.  
1. Clean the fluid and air line filters daily  
.
2. Disconnect and plug the fluid line.  
2. Check all of the work hangers for build-up of material;  
clean them, if necessary  
3. Connect the solvent supply to the gun.  
4. Flush the gun with solvent until it is clean.  
5. Follow the Pressure Relief Procedure Warning,  
.
3. All loose or ungrounded objects must be removed  
from the spray booth.  
then disconnect the solvent supply  
.
4. Clean the outside of the gun daily with a soft cloth  
dampened in a compatible solvent.  
6. Reconnect the fluid supply line.  
8. Actuate the gun until it is clear of solvent.  
307-712  
11  
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MAINTENANCE  
KEY  
To Clean or Change Air Cap and Fluid Nozzle  
15  
Fluid Nozzle  
BB  
CAUTION  
BB Air Cap Assembly  
Do not use metal tools to clean the air cap holes as  
this may scratch them, and make sure the elec-  
trode wire is not damaged. Scratches in the air cap  
holes or a damaged electrode wire can distort the  
spray pattern.  
81  
Locking Pin  
DETAIL  
DETAIL  
Equipment needed:  
Soft bristle brush (supplied).  
Fluid nozzle wrench (supplied).  
Solvent compatible with fluid being sprayed.  
15  
Unlocked  
Position  
Locked  
Position  
Procedure:  
81  
1. Follow the Pressure Relief Procedure Warning on  
81  
page 9.  
2. Remove the air cap assembly (BB). See Fig 6.  
3. Turn the locking pin (81) to the unlocked position.  
Fig 5  
4. Squeeze the gun trigger and remove the fluid nozzle  
(15) with the fluid nozzle wrench (66g) supplied.  
Make sure the front of the gun is pointed down. See  
Fig 6.  
KEY  
CC Electrode  
15  
16  
Fluid Noz
Air Cap A
66g Wrench  
5. Use the soft bristle brush (66a) supplied and solvent  
to clean the air cap, fluid nozzle, and front part of the  
gun.  
16  
CC  
6. Squeeze the gun trigger and screw the fluid nozzle  
back into the gun. Tighten the nozzle securely with  
the wrench (66g) supplied. Torque the fluid nozzle to  
1.1–1.4  
NSm (10–12 in–lb). See Fig 6. Turn the lock  
-
ing pin to the locked position.  
T
orq
1.1–1.4
(10–12 i
7. Carefully reinstall the air cap assembly. Avoid bend  
ing the electrode (CC).  
-
8. Tighten the retaining nut so it is snug. If the nut is tight  
enough, you will feel resistance when turning the air  
cap. If too tight, the spray pattern will be distorted.  
Fig  
6
12  
307-712  
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SPRAY  
PATTERN TROUBLESHOOTING CHART  
WARNING  
Installing and servicing this equipment requires access to parts which may cause electric 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.  
To reduce the risk of serious bodily injury, including splashing fluid or solvent in the eyes or on the skin, always follow  
the Pressure Relief Procedure Warning on page 9 before checking, adjusting, cleaning or repairing 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.  
PROBLEM:  
CAUSE  
SOLUTION  
IMPROPER SPRA  
Y
PATTERN  
Fluttering or spitting  
spray  
Insufficient fluid supply  
.
Adjust fluid regulator or fill fluid tank.  
Loose fluid nozzle or damaged fluid  
nozzle taper seat.  
Tighten or replace fluid nozzle  
See page 12.  
Dirt between fluid nozzle, taper seat  
Clean. See page 12.  
and body  
.
Loose or cracked coupler at fluid inlet.  
Loose fluid tube in cup or tank.  
T
ighten or repair  
.
Tighten.  
Fluid build-up on air cap; partially  
clogged horn holes. Full air pressure  
from clean horn hole forces fan pattern  
toward clogged end.  
Clean with soft implement or  
submerge in suitable solvent and wipe  
clean. See page 12.  
Damaged fluid nozzle or air cap holes.  
Replace damaged part. See page 12.  
Fluid build-up on the perimeter of fluid  
nozzle orifice, or partially clogged fluid  
nozzle orifice.  
Remove obstruction. Never use wire  
or hard instruments. See page 12.  
Too high atomization air pressure.  
Reduce air pressure or adjust air  
adjusting valve.  
Fluid too thin.  
Regulate fluid viscosity.  
Not enough fluid pressure.  
Increase fluid pressure.  
Low atomization air pressure.  
Fluid too thick.  
Increase air pressure.  
Regulate fluid viscosity  
.
Too much fluid.  
Reduce fluid flow. Reduce fluid  
pressure on pressure feed guns and/  
or adjust fluid adjusting screw until  
proper pattern is obtained.  
Streaks  
Last coat of fluid applied too wet.  
oo much air pressure.  
Apply drier finish with multiple  
strokes.  
T
Use least air pressure necessary.  
Insufficient air pressure.  
Increase air pressure.  
Non-uniform spray pattern.  
Clean or replace air cap.  
See page 12.  
NOTE: Some improper patterns are caused by the improper balance between air and fluid.  
307-712  
13  
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GUN OPERATION TROUBLESHOOTING CHART  
PROBLEM  
CAUSE  
SOLUTION  
Leakage from fluid pack- Worn needle packing.  
ing nut.  
Replace packing assembly  
.
See page 20.  
Air leakage from front  
of gun.  
Air valve not seating properly  
.
Clean, service. See page 24.  
Loosen packing. See page 24.  
Air stem packing too tight.  
Electrode worn or damaged.  
Fluid leakage from  
front of gun.  
Replace electrode. See page 18.  
Worn fluid seat.  
Replace fluid nozzle and/or electrode.  
See page 18.  
Fluid packing too tight.  
Loose fluid nozzle.  
Adjust packing screw. See page 20.  
Tighten fluid nozzle. See page 12.  
Cylinder air to gun not completely shut off. Adjust screw  
.
“Orange Peel” finish.  
Excessive spray fog.  
Insufficient air pressure.  
Increase, use least air pressure  
needed for good results.  
Fluid poorly mixed or filtered.  
Improper thinner being used.  
Remix or refilter fluid.  
Use proper thinner  
.
Too much air pressure.  
Reduce, use least air pressure  
needed for good results.  
Fluid thinned too much.  
Fluid low  
Properly thin fluid.  
No fluid sprays from  
gun.  
.
Check, add if necessary.  
Damaged air cap.  
Replace air cap. See page 12.  
Clean fluid nozzle. See page 12.  
Dirty or clogged fluid nozzle.  
Damaged fluid nozzle.  
Check, replace fluid nozzle.  
See page 12.  
Air Valve not actuating.  
Damaged fluid needle  
Check cylinder air, fluid needle packing,  
and needle. Replace parts as necessary  
.
See page 21.  
Replace. See page 20.  
Equipment covered  
with fluid.  
Exhaust air flow insufficient or not directed Check for proper CFM, check baffles  
properly.  
and direction of air flow.  
Improper distance between gun and  
work piece.  
Adjust distance to 203–305 mm  
(8–12 in.).  
Dirty air cap.  
Misalignment between air cap and  
fluid nozzle.  
Remove and clean air cap and fluid  
nozzle as described on page 12, then  
reinstall them.  
14  
307-712  
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ELECTRICAL TROUBLESHOOTING CHART  
PROBLEM  
CAUSE  
SOLUTION  
Poor wrap–around.  
*Turbine alternator not operating.  
Check air supply to turbine. Check for  
dirt or moisture in turbine. See page 23.  
Improper distance between gun  
and workpiece.  
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.  
Reduce air pressure.  
Atomizing air pressure too high.  
Fluid pressure too high.  
Reduce fluid pressure.  
Fluid viscosity  
.
Check supplier for proper fluid for  
electrostatic spray  
.
Fluid resistivity too low  
.
Check fluid resistivity with paint  
meter and probe.  
Faulty gun resistance.  
Check gun resistance. See page 16.  
Faulty resistor stud resistance.  
Check resistor stud resistance.  
See page 17.  
Faulty power supply resistance.  
Check power supply resistance.  
See page16.  
Faulty electrode.  
Replace electrode. See page 18.  
*Faulty turbine alternator  
.
Be sure plug is in place on back of  
turbine alternator housing.Remove and  
test turbine alternator. See page 23.  
Operator gets mild  
shock.  
Operator not properly grounded or is in  
contact with ungrounded object.  
Be sure floor is properly grounded.  
W
ear 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.  
Gun not properly grounded.  
See Check the Electrical Grounding,  
page 8. Be sure Graco electrically con-  
ductive air supply hose is being used  
and is properly grounded.  
Operator gets mild  
shock when touching  
work piece.  
W
ork piece not properly  
Clean work piece hangers. Check for  
proper ground on conveyor or track.  
grounded.  
*ES indicator light not on when gun is triggered.  
307-712  
15  
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ELECTRICAL TESTS  
The performance of the spray gun is directly affected by  
KEY  
A
1
14  
86  
Megohmmeter  
Gun Body  
Electrode  
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 (5) and the  
resistor stud (17) as well as the continuity of the electrical  
path between the components.  
A
Air Inlet Adapter  
Use megohmmeter 218–979 (see ACCESSORIES) and  
an applied voltage of 500 volts to complete these electri  
-
cal 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  
,
DO NOT use the megohmmeter in the hazardous  
area. Remove the gun from the hazardous area  
before testing it.  
1
86  
Test Gun Resistance  
NOTE: Check the resistance with the gun triggered and  
untriggered.  
Measure the resistance between the end of the electrode  
(14) and the gun air inlet adapter (86). See Fig 7. The re  
-
sistance should be between 115 to 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 15 for other possible  
causes of poor performance.  
14  
Fig 7  
KEY  
Test Power Supply Resistance  
A
Megohmmeter  
Remove the power cartridge (2) from the gun body (1).  
EE Connector Prong  
2a  
5
5c  
Turbine Alternator  
Power Supply  
Contact Spring  
See Power Cartridge Replacement  
.
Remove the turbine alternator (2a) from the power sup-  
ply (5). See urbine Alternator Removal  
A
T
.
Measure the resistance from the center prong (EE) in the  
power supply to the contact spring (5c) on the other end  
of the power supply. See Fig 8.  
The resistance should be 95 to 122 megohms. If the re  
-
sistance 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  
.
EE  
5c  
5
2a  
Fig  
8
16  
307-712  
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ELECTRICAL TESTS  
KEY  
Test Resistor Stud Resistance  
A
Megohmmeter  
Insert a conductive rod (FF) into the gun barrel (removed  
for the power supply test) and against the metal contact  
(GG) in the front of the barrel. See Fig 9.  
FF Conductive Rod  
GG Metal Contact  
14  
20  
A
Electrode  
Gun Barrel  
Measure the resistance between the conductive rod (FF)  
and the gun electrode (14). The resistance should be 20  
to 30 megohms. If the resistance is correct, refer to the  
Electrical Troubleshooting Chart for other possible  
causes of poor performance, or contact the nearest  
authorized service agency  
.
If the resistance is outside the specified range, remove  
the electrode (14). See Electrode Replacement. Meas  
-
ure the resistance between the conductive rod (FF) and  
the resistor in the inside diameter of resistor stud (17).  
20  
The resistance should be 20 to 30 megohms. If the resis  
tance is correct, the electrode wire is defective and must  
-
GG  
be replaced. See Electrode Replacement. If the resis-  
tance is outside the specified range, the resistor is defec  
tive and the resistor stud (17) must be replaced. See Re-  
sistor Stud Replacement  
-
.
FF  
If you still have problems, refer to the Electrical  
Troubleshooting Chart for other possible causes of  
poor performance, or contact the nearest authorized  
14  
Fig  
9
service agency  
.
307-712  
17  
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SERVICE  
2. Unscrew and remove the electrode (14) with the  
Gun Disassembly  
wrench (66c) supplied. See Fig 10. If the needle shaft  
assembly (9) turns while trying to loosen the elec-  
trode, hold the needle shaft assembly nut with a  
small wrench.  
WARNING  
Installing and servicing this equipment requires  
access to parts which may cause electric shock or  
other serious bodily injury if the work is not per-  
formed properly. Do not install or service this  
equipment unless you are trained and qualified.  
3. Install the new electrode (14) with the wrench (66c).  
Do not over tighten.  
CAUTION  
Follow the Pressure Relief Procedure Warning,  
page 9, before servicing the gun or any part of the  
system. Disconnect the fluid hose from the gun.  
To avoid damaging the plastic threads, be very  
careful when installing the electrode.  
NOTE: Check all possible remedies in the  
Troubleshooting Charts before disassembling  
the gun.  
4. Reinstall fluid nozzle and air cap assembly as  
described in To Clean or Change Air Cap and  
Fluid Nozzle  
.
CAUTION  
KEY  
If the plastic parts of the gun must be held se-  
curely, ALWAYS clamp them in padded vice jaws  
to prevent damage to the parts.  
9
Fluid Needle Shaft Assembly  
66c Wrench  
66c  
ALWAYS lubricate o–rings and seals with petro-  
leum jelly  
.
9
ALWAYS remove gun from worksite for service or  
repair. Service or repair area must be clean.  
Flush the gun as described under Flush the Spray Gun.  
Follow the Pressure Relief Procedure Warning on  
page 9. Disconnect the air and fluid line from the gun.  
Gun Assembly Note  
Whenever you are tightening plastic parts where there is  
no torque specified in the instructions, tighten the parts  
finger-tight and then retighten with a wrench 1/4 to 1/2  
turn.  
Electrode Replacement  
1. Remove the air cap assembly and fluid nozzle as de  
-
scribed in To Clean or Change Air Cap and Fluid  
Nozzle.  
Fig 10  
18  
307-712  
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SERVICE  
3. Using the wrench supplied, install the resistor stud in  
Resistor Stud Replacement  
the front of the gun barrel. Tighten until snug.  
WARNING  
Old/New Style Resistor Stud and Electrode  
To reduce the risk of sparking, which could cause  
fire or explosion, BE SURE the electrode and stud  
you install are black. The old style electrode and  
stud in the Series A Guns were white. DO NOT mix  
old style parts with new style parts.  
4. Install the electrode as described in Electrode Re-  
placement.  
5. Install the fluid nozzle and air cap assembly as  
described in To Clean or Change Air Cap and  
Fluid Nozzle  
.
KEY  
1. Remove the air cap assembly and fluid nozzle as  
12  
17  
18  
Washer  
Resistor Stud  
O-Ring  
described in To Clean or Change Air Cap and  
Fluid Nozzle  
.
2. Remove the electrode as described in Electrode  
Replacement.  
12  
18  
3. Using the wrench (59h) supplied, unscrew and  
remove the resistor stud (17) with the o-ring (18) and  
washer (12). See Fig 11.  
17  
To install the resistor stud:  
1. Lubricate the o-ring (18) with petroleum jelly and  
install it on the resistor stud (17).  
2. Install the washer (12) in the gun barrel.  
Fig 1  
1
307-712  
19  
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SERVICE  
KEY  
Barrel Removal  
1. Unscrew the nut (34) at the gun’s fluid inlet adapter  
31  
52  
Fluid  
Cap Screw  
Tube  
(35). See the PARTS DRAWING.  
66f Wrench  
2. Pull the fluid tube (31) out of the fluid adapter (35).  
3. Remove the trigger by removing the screws and  
spacers from the gun.  
66f  
52  
4. Remove the ES indicator lights from the socket head  
cap screws (52).  
31  
5. Using the wrench (66f) supplied, loosen and remove  
the two socket head cap screws (52) from the gun.  
See Fig 12.  
6. Hold the gun body with one hand and pull straight up  
to remove the gun barrel (20). See Fig 13.  
CAUTION  
Fig 12  
KEY  
To avoid damaging the power cartridge, always  
pull the gun barrel straight away. If necessary,  
gently move the gun barrel from side to side to free  
2
Power Cartridge  
it from the gun body  
.
6
20  
Gasket  
Gun Barrel  
20  
6
NOTE: The gasket (6) should be left in the gun body if  
the gasket is not to be replaced.  
To install the barrel (20), follow the procedure below:  
1. Be sure the gasket (6) is in place. Replace if dam-  
aged. Place the barrel over the power cartridge (2)  
and onto the gun body. See Fig 13.  
2
2. Install the two socket head cap screws (52) and  
tighten with the wrench (66f). See Fig 12.  
3. Snap the ES indicator lights in place over the socket  
head cap screws (52).  
Fig 13  
4. Insert the fluid tube (31) into the gun’s fluid inlet  
adapter (35) and tighten the nut (34).  
5. Install the trigger with the screws and spacers. Test  
the gun resistance as instructed on page 16.  
KEY  
Fluid Needle Packing Replacement  
1. Remove the air cap assembly and fluid nozzle as  
9e  
Packing Nut  
66b  
66b Wrench  
described in To Clean or Change Air Cap and  
Fluid Nozzle  
.
2. Remove the electrode as described under Elec-  
trode Replacement  
.
9e  
3. Remove the gun barrel as described under Barrel  
Removal.  
Fig 14  
4. Unscrew the packing nut (9e) using the wrench (66b)  
supplied. See Fig 14.  
20  
307-712  
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SERVICE  
5. Carefully remove the fluid needle assembly (9)14.froInmstall the air cap assembly and fluid noz  
the rear part of the gun barrel (20). See Fig 15d.escIfribtehde inTo Clean or Change Air Cap  
packing assembly (9a) or insulator (9g) are stilFl luiind Nozzl.e  
the barrel, insert the packing removal rod (66d) into  
15. Trigger the gun to check the needle adjus  
The air should come fully on before the fluid  
on. Adjust the needle adjusting nut (9c) un  
the front of the barrel to gently push them out. Refer  
to Fig 16.  
NOTE: If the insulator (9g) is removed, be sure to pirnosptaelrl lead and lag is achieved.  
it so the insulator end with holes is facing the  
packing assembly (9a).  
If the fluid comes on ,tooremsoooven the trigger  
and back the needle adjusting nut (9c) out  
6. Wipe the internal surfaces of the barrel clean with a  
from the barrel) slightly.  
soft brush or cloth.  
If the fluid comes on tootightlaetne, the needle  
CAUTION  
Clean all parts in nonĆconductive solvent compatĆ  
ible with the fluid being used, such as xylol or minĆ  
adjusting nut (9c) slightly (turn towards barrel).  
After adjustment is complete, tighten the locking  
(9d) against the adjusting nut (9c).  
eral spirits. Use of conductive solvents can cause  
the gun to malfunction.  
KEY  
9
Fluid Needle Assembly  
7. Remove the packing assembly (9a) from the needle  
9c  
20  
Needle Adjusting Nut  
Gun Barrel  
(9b).  
NOTE: If the position of the adjusting nut (9c) is  
changed, install the adjusting nut to the apĆ  
proximate dimension shown in Fig 15. (Final adĆ  
justment will be made in step 15.) If the ping  
132.7 mm  
(5.2 in.)  
(9f) was removed, reinstall it over the  
8. Install the new packing assembly (9a).  
CAUTION  
n
9c  
9
Carefully screw needle (9b) into new packi
assembly (9a) to avoid damaging the seals.  
20  
9. Test the drag on the fluid needle. It shoul
small spring
proximately 2.5 to  
3
lbs (use  
a
measure). If the adjustment is out of tole
tighten or loosen the adjusting screw on the packĆ  
Fig 15  
ing assembly (9a) slightly and retest. Continue to  
adjust until the tolerance is correct.  
KEY  
10. Install the entire fluid needle assembly (9) into the  
9d  
9
Fluid Needle Assembly  
gun barrel, from the back of the barrel.  
9a  
9b  
Needle Packing Assembly  
Fluid Needle  
11. Firmly tighten the packing nut (9e) down unt
9c  
9d  
9e  
9f  
Adjusting Nut  
toms.  
Locking Nut  
Packing Nut  
Spring  
9f  
CAUTION  
9c  
9b  
When checking the fluid needle movement, D
9g  
Insulator  
NOT move the needle out of the gun barrel
than 6.35 mm (1/4 in.) to avoid pulling the
out of the packing area and damaging the p
ings.  
9e  
9g  
9
12. Install  
the  
barrel  
as  
described Buanrrdeelr  
9a  
Removal.  
13. Install the electrode as describedEleucntdroerde  
Replacement.  
Fig 16  
307-712  
21  
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SERVICE  
5a  
KEY  
1
Gun Body  
Alternator  
O-Ring  
Plug  
5
2a  
2b  
2c  
5
Power  
Supply  
5a  
5b  
5c  
6
O-Ring  
O-Ring  
Spring  
Gasket  
Barrel  
5b  
5c  
6
20  
20  
2b  
20b  
See NOTE after  
step 3, below.  
1
2c  
OTE: The power cartridge (2)  
includes items 2a, 2b,  
2c, and 5.  
2a  
Fig 17  
NOTE: The cushion (20b) is part of the gun barrel and  
should never need to be removed. If it is  
removed, push the cushion in, adhesive side toĆ  
Power Cartridge Replacement  
1. Remove the barrel as described Baurnrdeelr  
Removal.  
ward the barrel, with  
hered in the baDrOrel. NOT use the power supĆ  
a
rod until it is securely ad  
2. Remove the gasket (6) from the gun body (1). See  
Fig 17.  
ply (5) to press the cushion into the barrel as  
will not adhere properly.  
CAUTION  
4. Insert the new power cartridge in the gun body (1).  
The power cartridge is fragile. Be careful when  
handling it to avoid damage.  
NOTE: See Fig 18 for proper alignment of the power  
cartridge (2) in the gun body (1).  
3. Grasp the power cartridge with your hand. With  
a
5. Install the gasket (6) in the gun body (1).  
gentle side to side motion, pull it free from the gun  
body (1). Then pull the power cartridge straight out  
of the body.  
6. Install the barrel on the gun body as described  
under Barrel Remova. l  
CAUTION  
KEY  
DO NOT use solvents to clean the power carĆ  
1
Gun Body  
2
tridge cavity in the gun body (1). Solvent will damĆ  
Power Cartridge  
1
age electrical  
power cartridge.  
components  
contained  
in  
the  
2
Inspect the power cartridge cavity in the gun  
body for dirt or moisture. Clean out the cavity with  
a
clean, dry rag if necessary.  
Lightly lubricate the o-rings (2b, 5a, 5b) on the  
new power cartridge with petroleum jelly. All the  
Fig 18  
o-rings and the compression spring (5c) must  
be in place or the gun will malfunction.  
22  
307-712  
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SERVICE  
Turbine Alternator Removal  
Fan Air Valve Replacement  
1. Remove power cartridge from the gun bod1y. Palasce  
described undePrower Cartridge Replacem.ent  
a
and remove it from the gun body (1). See  
wrench on the flats of the valve ho  
2. Carefully twist the turbine alternatocroun(2tear)Ć 2. Remove the retaining ring (46).  
clockwise and pull it off the power supply (5) until  
3. Rotate the air adjusting (s5c6r)ew counterclockĆ  
just disengaged from the coupling. Then continue  
wise until it is disengaged from the valve  
to slowly pull the turbine alternator away from the  
threads. Pull the adjusting screw out of the  
housing (55).  
power supply, disconnecting the 3Ćwire connector  
(HH). See Fig 19.  
4. Clean all the parts and inspect them for  
3. Using an ohmmeter, test the coil in the turbine alterĆ  
damage. If replacing the seal (47), culnoscckrĆew it  
nator (2a). Measure the resistance between the two  
wise and remove it from the adjusting screw.  
outer terminals of the 3Ćwire connector (HH). The  
5
resistance should be 3 to ohms. If the reading varĆ  
ies from this value, replace the alternator.  
5. Apply medium grade thread sealant to the  
threads on the end of the adjusting screw  
(
install  
a
new seal (left hand thread).  
4. Measure the resistance between each outer termiĆ  
nal of the 3Ćwire connector (HH) and the turbine alĆ  
6. When reassembling the fan air valve, lubricate  
ternator housing. The resistance should be infinite.  
o-ring (54) and the adjusting screw threads  
If the resistance is not infinite, replace the alternator.  
petroleum jelly.  
5. Partially connect the 3Ćwire connector (HH) onto the  
7. After the retaining ring (46) is installed on the  
prongs inside the power supply (5). See Fig 19. UsĆ  
ing screw (56), back the adjusting screw out  
small screwdriver, push the connector onto the  
ing a  
prongs until seated.  
valve housing (55) until it bottoms out against  
taining ring.  
6. Slide the turbine alternator (2a) onto the power supĆ  
8. Apply Teflorn paste to the threads of the valve  
ing (55) and install it in the gun body (1).  
ply, being sure to align the coupling between the  
power supply and the turbine alternator housing.  
housing to 1.1-1.S4mN (10-12 in-lb).  
Then twist the turbine altecrnloactkowr ise to lock  
the coupling.  
KEY  
1
Gun Body  
7. Install the power cartridge in the gun body as  
46  
47  
54  
55  
Retaining Ring  
described undePrower Cartridge Replacem.ent  
Valve Seal  
OĆRing  
1
KEY  
HH 3-wire Connector  
Valve Housing  
2a  
5
Alternator  
Power  
2a  
Supply  
HH  
47 46  
54  
56  
5
55  
Apply Teflon paste.  
Torque to  
1.1-1.4 SNm  
(10-12 in-lb)  
Fig 20  
Fig 19  
307-712  
23  
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SERVICE  
8. Install the new packing (27) and guide (26) in the  
gun body (1); screw the guide in loosely.  
Piston Removal and Repair  
1. To disconnect the fluid hose (31) from the cover  
plate (41), screw the nut (34) off the adapter (35).  
NOTE: DO NOT fully tighten the guide (26) yet. The  
See Fig 21.  
guide must be loose to avoid damaging the  
packing (27) when pushing the piston shaft  
through the guide.  
2. Note the position of the trigger adjusting nut (24) for  
reinstallation, then screw it off the piston  
shaft.  
9. If replacing the uĆcup packing sli(d3e7), it onto the  
3. Remove the screws (61) and lock washers (82) from  
piston (42) so the lips of the packing will face to  
the cover plate (41). Remove the cover plate (41),  
wards the front of the gun when the piston is in  
spring (38), and retainer cap (74).  
stalled. Then install the bunaĆn oĆring (30) and  
Vitonr oĆring (79) on the piston.  
4. Unscrew and remove the air valve guide (26) and  
needle packing (27) from the gun body (1),  
10. Install the piston assembly into the gun body (1),  
being careful not to damage the piston's lip seal.  
5. Push on the end of the piston shaft, and remove the  
piston assembly.  
11. Install the retainer cap (74) into the cover plate (41).  
NOTE: DO NOT remove the uĆcup packing (37) from  
12. Install the cover plate (41), spring (38), and retainer  
the piston shaft except to replace it as removal  
cap (74) with the screws (61) and lock washers (82).  
will damage this packing.  
13. Actuate the trigger and tighten the air valve guide  
6. Clean and inspect parts for wear or damage. ReĆ  
(26) with  
a
wrench.  
place parts as needed.  
14. Screw the trigger adjusting nut (24) onto the piston  
7. When reassembling the piston assembly, lubricate  
shaft to its previously noted position.  
79) and the uĆcup packing (42) on  
the oĆrings (30  
the piston with petroleum jelly. Pack the spring (38)  
&
15. Connect the fluid hose (31) to the adapter (35).  
with petroleum jelly. Apply Teflon tape to the air valve  
guide (26).  
KEY  
1
Gun Body  
34  
35  
37  
38  
Nut  
42  
61  
74  
79  
Piston  
24  
26  
27  
30  
31  
Trigger Adjusting Nut  
Air Valve Guide  
Needle Packing  
Adapter  
Screws  
UĆCup Packing  
Spring  
Retainer Cap  
Viton OĆRing  
42  
37  
74  
79  
1
41  
35  
38  
Pack with  
lubricant  
30  
61  
82  
24  
27  
34  
31  
Fig 21  
24  
307-712  
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SERVICE  
KEY  
Disc Regulator OĆRing Replacement  
1
1. Unscrew the turbine air line from the adapter (86).  
Gun Body  
87  
88  
89  
90  
OĆRing  
3
Regulator Disk  
Air Valve  
Washer  
See Fig 22.  
85  
86  
O-Ring  
Adapter  
Cap Screw  
2. Remove the cap screw (90) and washer (89) from  
the gun body (1).  
86  
3
3. Pull the adapter (86), with the air valve (88), out of  
the gun body.  
85  
88  
1
87  
4. Unscrew the adapter (86) from the air valve
and remove the disk regulator (3).  
5. Clean and inspect parts for wear or damage
replace if necessary.  
89  
6. Clean and inspect the two oĆrings (87) and
ring (85) on the air valve. Replace if necessa
bricate the oĆrings with petroleum jelly.  
90  
7. Install the disc regulator (3) into the air valve
its beveled surface faces into the gun.  
8. Screw the adapter (86) into the air valve (88), and  
install the air valve into the gun body (1).  
Fig 22  
9. Screw the cap screw (90), with the washer (89), into  
the gun body (1).  
KEY  
1
Gun Body  
Muffler  
Elbow  
10. Screw the turbine air line onto the adapter (67).  
76  
77  
78  
Tube  
1
Muffler Replacement  
1. Remove the fan air valve assembly as instru
Fan Air Valve Replace.ment  
78  
2. Remove the elbow (76) with the tube (78)
gun body (1). See Fig 23.  
77  
76  
3. With  
a
body and replace with  
hook, remove the muffler (77) from
new muffler.  
a
4. Install the elbow (76) in the gun body.  
5. Install the fan air valve assembly as Finasntructed in  
Air Valve Replacem.ent  
Fig 23  
307-712  
25  
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PARTS DRAWING  
26  
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PARTS LIST  
REF  
REF  
NO. PART NO. DESCRIPTION  
QTY  
NO. PART NO. DESCRIPTION  
QTY  
36  
37*  
38  
41  
42  
46  
47  
50  
51  
52  
107–208  
181–039  
108–221  
180–924  
218–989  
105–681  
181–383  
180–235  
218–179  
107–100  
NUT, ferrule; 5/8–20 UN–2B  
3
1
2
218–744  
218–111  
BODY, gun  
1
PACKING, u–cup; UHMW polyethylene  
1
1
1
1
1
1
1
2
POWER CARTRIDGE  
Includes items 2a & 5  
.ALTERNATOR, turbine  
Includes items 2b & 2c  
..O–RING; buna–N  
..PLUG  
REGULATOR, disc  
SCREW; 1/4–20  
.POWER SUPPLY, ES, 75 KV  
Includes items 5a, 5b & 5c  
..O–RING; Viton  
..O–RING; fluorocarbon  
..SPRING, compression  
GASKET, housing  
FLUID NEEDLE ASSY; Includes  
items 9a–9g  
.PACKING ASSY, needle  
.NEEDLE, fluid; Includes items 9c & 9d  
..NUT, adjusting  
SPRING, compression  
PLATE, cover  
PISTON, shaft  
RING, retaining, external  
SEAL, valve  
RESTRICTOR (color coded black)  
LIGHT, indicator, ES  
SCREW, cap, socket hd;  
M5 x 0.8 x 12  
RESTRICTOR (color coded white)  
O–RING; ethylene–propylene  
HOUSING, valve  
SCREW, adjusting  
SCREW, trigger  
SCREW, mach, pnh; 6–32  
SIGN, warning, English (not shown)  
SIGN, warning, Spanish (not shown);  
See ACCESSORIES to order French  
or German  
KIT, tool; Includes items 66a–66h  
.BRUSH, cleaning  
.WRENCH, packing nut  
.WRENCH, needle  
.ROD, packing removal  
.WRENCH, resistor stud  
.WRENCH, barrel  
1
2a  
217–591  
1
2
1
1
1
2b*  
2c  
3*  
4
107–106  
180–070  
107–107  
110–916  
218–041  
5
2
1
1
1
1
2
4
1
1
1
1
1
1
53  
54*  
55  
56  
60  
61  
62  
65  
179–994  
105–666  
181–382  
181–381  
107–400  
100–205  
180–060  
180–063  
5a*  
5b*  
5c  
6*  
177–156  
106–555  
178–504  
179–387  
222–256  
9
1
1
9a  
9b  
9c  
9d  
9e  
9f  
222–255  
222–013  
183–749  
183–750  
176–936  
105–673  
179–388  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
..NUT, locking  
.NUT, packing  
.SPRING, compression  
.INSULATOR, needle  
LABEL, warning  
66  
220–388  
66a 105–749  
66b 177–732  
66c{ 177–007  
66d 179–803  
66e 107–158  
9g  
11** 179–790  
12{ 181–825  
14{ 181–824  
WASHER  
ELECTRODE (color coded black)  
NOZZLE, fluid; 1.2 mm (0.047’’)  
(See manual 307–803 for other  
available fluid nozzles)  
AIR CAP ASSEMBLY  
Includes items 16a, 16b & 16c  
.RING, retaining  
66f  
107–460  
15  
181–299  
66g 177–004  
66h{ 183–107  
.WRENCH, fluid nozzle  
TOOL, resistor stud  
CAP, retainer, spring  
PLUG; 3/8–18 npsm  
1
74  
75  
76  
77  
78  
79  
80  
81  
82  
84  
85  
86  
87*  
88  
89  
90  
91  
181–178  
181–599  
181–594  
181–223  
054–134  
108–298  
181–302  
181–303  
108–340  
104–282  
105–796  
181–598  
103–648  
181–597  
102–782  
105–408  
177–128  
16  
218–996  
1
1
1
ELBOW, male, 90  
MUFFLER  
5
16a 176–930  
16b 176–968  
16c 180–739  
.NUT, retaining  
TUBE, polyethylene  
O–RING; Viton  
HOUSING, pin  
178 mm  
.AIR CAP (See manual 307–803  
for other available air caps)  
STUD, resistor (color coded black)  
O–RING; Viton; standard  
(color coded green)  
O–RING, polyethylene; optional  
(color coded white)  
BARREL, gun; Includes item 20a & 20b  
.PLUG; M3 x 0.5 x 6  
.CUSHION  
1
1
1
4
1
1
1
2
1
1
1
1
17{ 220–923  
105–667  
18*{  
PIN, locking  
LOCKWASHER, internal  
O–RING; buna–N  
O–RING; Viton  
ADAPTER; 1/4–18 npsm, LH  
O–RING; Viton  
1
108–045  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
20  
179–412  
20a 176–921  
20b 186–127  
VALVE, air  
WASHER, plain  
21  
23  
24  
26  
27*  
28  
30*  
31  
107–207  
180–928  
180–927  
176–941  
106–901  
108–173  
156–454  
181–179  
FITTING, male  
TRIGGER  
NUT, adjusting, trigger  
GUIDE, valve, air  
SCREW, cap, hex hd; M6 x 10 long  
SPACER  
1
2
*Included in Repair Kit 218–967.  
PACKING, needle;PTFE  
ELBOW, male  
O–RING; buna–N  
TUBE, fluid  
TAG, warning (not shown)  
COLLAR  
NUT, tube, flareless  
ADAPTER, fluid  
**Extra warning tags and labels are supplied at no charge.  
{Included in Repair Kit 220–391. Read and follow the Old/New  
Style Resistor Stud and Electrode Warning, at left.  
32** 179–791  
33  
34  
35  
178–131  
106–262  
181–384  
See HOW TO ORDER REPLACEMENT PARTS on page 29.  
WARNING  
WARNING  
When servicing use only genuine Graco replace-  
ment parts. Use of other parts or any alteration or  
modification of this equipment could cause it to  
malfunction, which could result in serious injury,  
fire, explosion, or property damage.  
Old/New Style Resistor Stud and Electrode  
To reduce the risk of sparking, which could cause fire  
or explosion, BE SURE the electrode and stud you  
install are black. The old style electrode and stud in  
the Series A Guns were white. DO NOT mix old style  
parts with new style parts  
.
307-712  
27  
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KITS  
Repair Kits must be purchased separately  
.
Use only GENUINE GRACO PARTS AND ACCESSORIES.  
WARNING  
When servicing use only genuine Graco replace-  
ment parts. Use of other parts or any alteration or  
modification of this equipment could result in serious  
injury, fire, explosion, or property damage.  
NOTE: The Ref. Nos. shown in the kits below correspond to the reference numbers used in the parts list on page 27.  
For the best results, use all the parts in the kit, even if the old parts still look good.  
Spray Gun Repair Kit 218–967  
Resistor Stud and Electrode Kit 220–391  
Includes:  
Includes:  
Ref  
Ref  
No. Part No. Description  
Qty  
No. Part No. Description  
Qty  
2b  
3
5a  
5b  
6
18  
27  
30  
37  
54  
87  
107–106  
107–107  
177–156  
106–555  
179–387  
105–667  
106–901  
156–454  
181–039  
105–666  
103–648  
O-RING, buna-n  
REGULATOR, disc  
O-RING, Viton  
O-RING, Viton  
GASKET, housing  
O-RING, Viton  
2
1
1
1
1
1
1
2
1
1
2
12  
14  
17  
181–825  
181–824  
220–923  
WASHER  
1
1
ELECTRODE (color coded black)  
STUD, resistor (color coded  
black)  
O–RING, Viton  
WRENCH, needle  
1
1
1
1
18  
105–667  
66c 177–007  
66h 183–107  
P
ACKING, needle, PTFE  
O-RING, buna-n  
ACKING, u-cup, UHMWPE  
TOOL, resistor stud  
P
O-RING, ethylene-propylene  
O-RING, Viton  
28  
307-712  
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SERVICE INFORMATION  
TECHNICAL DATA  
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.87 Kg (1.90 lb)  
Listed below by assembly changed are OLD and NEW  
parts.  
Gun Length  
Maximum  
Air Pressure Operating Range  
Fluid Pressure Operating Range  
Voltage Operating Range . . . . . . . . . . . . . . . . . 0–75 KV  
. . . 7 megohm cms to infinity  
.
W
. . . . . . . . . . . . . . . . . . . . 310 mm (12.25 in.)  
orking Pressure . . . . . . . . . 7 bar (100 psi)  
. . 0–7 bar (0–100 psi)  
0–7 bar (0–100 psi)  
.
.
Assembly  
Changed Status  
Ref  
.
No. Part No. Name  
.
218–745  
Spray Gun NEW  
OLD  
4
4
100–664 Screw  
110–916 Screw  
Paint Resistivity Range  
Air Inlet  
.
Turbine . . . . . . . . . . . . . . . . . . . . . . 1/4 npsm(m) L.H.  
Atomizing & Cylinder . . . . . . . . . . . . . . . 1/4 npt(m)  
Fluid Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npsm(m)  
.
.
Wetted Parts . . . . . . Stainless Steel, Polyethylene,  
Nylon, Acetal, Vitonrr,  
Delrinr  
Vitonrand Delrin are registered trademarks of  
r
the DuPont Co.  
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  
Qty  
Part Description  
307-712  
29  
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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.  
The accessories in the box, below, are approved by Factory Mutual.  
WARNING SIGNS  
vailable from Graco at no extra charge.  
Must be ordered separately  
FLUID HOSE ASSEMBLIES (Nylon)  
35 bar (500 psi) MAXIMUM WORKING PRESSURE  
6.35 mm (0.25 in.) ID, 3/8 npsm(fbe)  
A
.
180–060  
180–061  
180–062  
180–063  
W
W
W
W
arning Sign (English)  
arning Sign (French)  
arning Sign (German)  
arning Sign (Spanish)  
216–076  
216–077  
216–078  
216–079  
216–080  
8 m (25 ft)  
15 m (50 ft)  
23 m (75 ft)  
30 m (100 ft)  
46 m (150 ft)  
GROUNDED AIR SUPPLY HOSE  
7 bar (100 psi) MAXIMUM WORKING PRESSURE  
6.35 mm (0.25 in.) ID, 1/4 npsm(fbe)  
FLUID HOSE ASSEMBLIES (Nylon)  
14 bar (225 psi) MAXIMUM WORKING PRESSURE  
6.35 mm (0.25 in.) ID, 3/8 npsm(fbe)  
220–444  
218–100  
218–101  
218–102  
218–103  
220–119  
220–120  
1.2 m (4 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)  
215–637  
215–638  
215–639  
215–640  
215–641  
8 m (25 ft)  
15 m (50 ft)  
75 ft (23 m)  
100 ft 30.5 m)  
150 ft (46 m)  
ACCESSORIES  
The accessories below and on page 31 have not been tested by Factory Mutual.  
HIGH VOLUME AIR REGULATOR 206–199  
AIR LINE ACCESSORIES  
0–9 bar (0–125 psi) Regulated Pressure  
14 bar (200 psi) Steel Pressure Gauge  
1/2 npt(f) in
GROUNDED AIR SUPPLY HOSE  
7 bar (100 psi) MAXIMUM WORKING PRESSURE  
8 mm (0.315 in.) ID; 1/4 npsm(fbe);  
Color coded gray; More flexible than black hose  
223–068  
223–069  
223–070  
223–071  
223–072  
223–073  
223–074  
1.2 m (4 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 FILTER & MOISTURE SEPARATOR 106–148  
17.5 bar (250 psi) MAXIMUM WORKING PRESSURE  
For cleaning and drying air in air spray system.  
20 micron element, 5 oz. bowl capacity  
,
AIR HOSE ADAPTER 185–493  
For connecting two or more air supply hoses together.  
3/8 npt(f) inlet and outlet  
1/4 npt(m) x 1/4 npsm(m) left–hand thread.  
3-WAY AIR VALVE 722–502  
30  
307-712  
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ACCESSORIES  
FILTER (AIR OR PAINT) 202–271  
GUN MOUNTING ACCESSORIES  
52 bar (750 psi)MAXIMUM WORKING PRESSURE  
With 250 micron (60 mesh) element,  
3/8 npt(f) inlet, 3/8 npt(m) outlet  
UNIVERSAL GUN MOUNTING ROD 590–236  
RECIPROCATING GUN MNTG. BRACKET 725–973  
Note: All safety barriers and interlocks are to be  
supplied by the customer  
.
STATIONARY GUN MOUNTING STAND 722–562  
STATIONARY GUN MOUNTING BRACKET 724–344  
SPRAY SYSTEM ACCESSORIES  
MISCELLANEOUS ACCESSORIES  
ELECTROSTATIC SYSTEM 231–035  
Includes items:  
REMOTE FAN AIR ADAPTER 181–053  
To control fan pattern from the control booth. 1/8–27  
npt(f).  
218–745  
218–101  
Automatic Electrostatic Air Spray Gun  
Grounded Air Supply Hose (See  
page 30 for description)  
Must also order: 108–234 90_ Elbow; 1/8 npt(m)  
216–076  
tion)  
106–148  
Fluid Hose (See page 30 for descrip-  
REMOTE SWITCH & SIGNAL LIGHT 728–386  
Air Filter (See page 30 for description)  
ELECTROSTATIC SYSTEM 231–036  
Includes items:  
218–745  
218–103  
Automatic Electrostatic Air Spray Gun  
Grounded Air Supply Hose (See  
and page 30 for description)  
216–077  
106–148  
Fluid Hose (See page 30 for description)  
Air Filter (See page 30 for description)  
ISOLATION STAND  
Required for isolating the fluid supply from the ground  
when spraying conductive water-base fluid.  
CONTROL PANEL 218–394  
For one or two gun operation. Includes cabinet mounted  
air regulator, air filter, three-way triggering valve and air  
atomizing gauge.  
728–650 Isolation Stand; 15 gal (57 liter) maximum  
727–212 Isolation Stand; 55 gal (209 liter) maxi-  
mum  
PAINT RESISTANCE METER 722–886  
Used with 722–860 Paint Probe to measure resistance of  
paint. Not for use in Hazardous areas.  
905–576 Same as 727–212 but includes bleed  
resistor  
P
AINT PROBE 722–860  
WATER BASE PACKING KIT 220–014  
For converting packings to handle water base fluids.  
Used with 722–886 Paint Resistance Meter to  
measure resistance of paint. Not for use in  
Hazardous areas.  
NOTE: The installation of this kit will void the CSA and  
FM approval on the PRO4000 Gun.  
MEGOHMMETER 218–979  
500 Volt output; 0.01–2000 megohms  
307-712  
31  
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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 work  
-
manship 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, tam  
-
pering, 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 rea  
sonable 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 LI  
ABILITIES, BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR CON  
SEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S LIABILITY EX  
-
-
-
CEED 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 RESPECT TO ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT  
NOT MANUFACTURED BY GRACO. 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 rea  
sonable assistance in making any claim for breach of these warranties.  
-
IMPORTANT PHONE NUMBERS  
TO PLACE AN ORDER, contact your Graco distribu-  
tor, or call this number to identify the distributor closest  
to you:  
1–800–328–0211 Toll Free  
FOR TECHNICAL ASSISTANCE, service repair infor  
-
mation or assistance regarding the application of Graco  
equipment: 1–800–543–0339 Toll Free  
Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)  
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan  
GRACO INC. .O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
P
PRINTED IN U.S.A. 307–712 7–85 Revised 9–90  
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32  
307-712  

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