Graco 309297L Pro Auto Xs Users Manual Xs, Automatic Electrostatic Air Spray Gun, Instructions/Parts, English

2015-04-02

: Graco Graco-309297L-Pro-Auto-Xs-Users-Manual-686487 graco-309297l-pro-auto-xs-users-manual-686487 graco pdf

Open the PDF directly: View PDF .
Page Count: 56

Download
Open PDF In Browser	View PDF

Instructions/Parts List
AUTOMATIC ELECTROSTATIC AIR SPRAY GUN

PRO™

Auto Xs

309297L
EN

100 psi (0.7 MPa, 7 bar) Maximum Air Inlet Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure

For use in Class I, Div. I hazardous locations using Group D spray materials.
#

For use in Group II, Zone 1 areas using Group IIA spray materials.
II 2 G EEx 0.24 mJ

For Professional Use ONLY.
U.S. Patent 7,226,004

TI1557A

Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for Table of Contents and page 3 for
List of Models.

Table of Contents
List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warning Symbol . . . . . . . . . . . . . . . . . . . . . . . . . 3
Caution Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
How the Electrostatic Air Spray Gun Works . . . . 6
Operating the Spray Function . . . . . . . . . . . . . . . 6
Operating the Electrostatics . . . . . . . . . . . . . . . . 6
Gun Features and Options . . . . . . . . . . . . . . . . . 6
Changing the kV Setting . . . . . . . . . . . . . . . . . . . 6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Install the System . . . . . . . . . . . . . . . . . . . . . . . . 8
Warning Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ventilate the Spray Booth . . . . . . . . . . . . . . . . . . 8
Install the Air Line Accessories . . . . . . . . . . . . . 10
Install the Fluid Line Accessories . . . . . . . . . . . 10
Install the Gun and Mounting Bracket . . . . . . . . 10
Connect the Air and Fluid Lines . . . . . . . . . . . . 11
Manifold Connections . . . . . . . . . . . . . . . . . . . . 11
Optional Fiber Optic Cable Connection . . . . . . 12
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check Electrical Grounding . . . . . . . . . . . . . . . 14
Check Fluid Resistivity . . . . . . . . . . . . . . . . . . . 15
Check Fluid Viscosity . . . . . . . . . . . . . . . . . . . . 15
Install the Fabric Cover . . . . . . . . . . . . . . . . . . . 15
245324 HC Conversion Kit . . . . . . . . . . . . . . . . 16
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pressure Relief Procedure . . . . . . . . . . . . . . . . 17
Operating Checklist . . . . . . . . . . . . . . . . . . . . . . 18
Select a Fluid Nozzle and Air Cap . . . . . . . . . . 18
Adjust the Spray Pattern . . . . . . . . . . . . . . . . . . 19
Adjust the Electrostatics . . . . . . . . . . . . . . . . . . 20
Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Triggering the Fluid Alone . . . . . . . . . . . . . . . . . 21
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Daily Care and Cleaning . . . . . . . . . . . . . . . . . . 22
Clean the Air Cap and Fluid Nozzle . . . . . . . . . 24
Check for Fluid Leakage . . . . . . . . . . . . . . . . . . 25
Electrical Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Test Gun Resistance . . . . . . . . . . . . . . . . . . . . . 26
Test Power Supply Resistance . . . . . . . . . . . . . 27
Test Electrode Resistance . . . . . . . . . . . . . . . . . 28
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Spray Pattern Troubleshooting . . . . . . . . . . . . . 29
Gun Operation Troubleshooting . . . . . . . . . . . . 30
Electrical Troubleshooting . . . . . . . . . . . . . . . . . 31
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Prepare the Gun for Service . . . . . . . . . . . . . . . 32
Remove the Gun from the Manifold . . . . . . . . . . 33
Install the Gun on the Manifold . . . . . . . . . . . . . 33
Air Cap/Nozzle Replacement . . . . . . . . . . . . . . 34
Electrode Replacement . . . . . . . . . . . . . . . . . . . 35
Fluid Packing Removal . . . . . . . . . . . . . . . . . . . 36
Packing Rod Repair . . . . . . . . . . . . . . . . . . . . . . 37
Piston Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Adjust the Actuator Arm . . . . . . . . . . . . . . . . . . . 39
Barrel Removal . . . . . . . . . . . . . . . . . . . . . . . . . 40
Barrel Installation . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Supply Removal and Replacement . . . . 42
Turbine Alternator Removal and Replacement . 43
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Air Line Accessories . . . . . . . . . . . . . . . . . . . . . 52
Fluid Line Accessories . . . . . . . . . . . . . . . . . . . . 52
Miscellaneous Accessories . . . . . . . . . . . . . . . . 53
Gun Accessories . . . . . . . . . . . . . . . . . . . . . . . . 54
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 56

309297L

List of Models

List of Models
Type of Coatings
Part No.

Model

Voltage
Standard

244589

PRO Auto Xs

40-85 kV

244590

PRO Auto Xs

40-85 kV

High Conductivity

X
X

Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious injury
or death if you do not follow the instructions.

309297L

Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to or
destruction of equipment if you do not follow the instructions.

Warning

WARNING
Fire, Explosion, and Electric Shock Hazard
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
• Electrostatic equipment must be used only by trained, qualified personnel who understand the
requirements of this manual.
•

Ground equipment, personnel, object being sprayed, and conductive objects in work area. See
Grounding instructions.

•

Only use grounded Graco conductive air supply hoses.

•

Check gun and hose resistance and electrical grounding daily.

•

Use and clean equipment only in well ventilated area.

•

Interlock the gun air supply to prevent operation unless ventilating fans are on.

•

Use cleaning solvents with highest possible flash point when flushing or cleaning equipment.
To comply with EN50050 requirements, cleaning solvents must have a flash point at least 5°C
above ambient temperature.

•

Always turn the electrostatics off when flushing, cleaning or servicing equipment.

•

If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

•

Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

•

Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.

•

Keep work area free of debris, including solvent, rags and gasoline.

•

Keep a working fire extinguisher in the work area.

Toxic Fluid Hazard
Hazardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on
the skin, swallowed, or inhaled.

•

Know the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.

•

Store hazardous fluid in an approved container. Dispose of the hazardous fluid according to all
local, state, and national guidelines.

•

Wear appropriate protective clothing, gloves, eyewear, and respirator.

309297L

Warning

WARNING
Equipment Misuse Hazard
Equipment misuse can cause the equipment to rupture, malfunction, or start unexpectedly and
result in a serious injury.
•

This equipment is for professional use only.

•

Read all manuals, tags, and labels before operating the equipment.

•

Use the equipment only for its intended purpose. If you are uncertain, call your Graco distributor.

•

Do not alter or modify equipment. Use only genuine Graco parts and accessories.

•

Check the equipment daily. Repair or replace worn or damaged parts immediately.

•

Do not exceed the maximum working pressure of the lowest rated system component. Maximum working air and fluid pressure of this equipment is 100 psi (0.7 MPa, 7.0 bar).

•

Use fluids and solvents that are compatible with the equipment wetted parts. See the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.

•

Route the hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 180°F (82°C) or below -40°F (-40°C).

•

Wear hearing protection when operating this equipment.

•

Comply with all applicable local, state, and national fire, electrical, and other safety regulations.

Pressurized Equipment Hazard
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin
and cause serious injury.

309297L

•

Do not point the spray gun at anyone or at any part of the body.

•

Do not stop or deflect fluid leaks with your hand, body, glove, or rag.

•

Follow the steps under Prepare the Gun for Service, page 32, when you stop spraying and
before cleaning, checking, or repairing equipment.

•

Check hoses and couplings daily. Replace worn, damaged, or loose parts immediately.

•

Tighten all fluid connections before each use.

Introduction

Introduction
How the Electrostatic Air
Spray Gun Works
The automatic electrostatic air spray gun operates very
similar to a traditional air spray gun. The atomization
and fan air are emitted from the air cap. The atomization
air breaks up the fluid stream and controls the droplet
size. The fan air controls the shape and width of the
spray pattern. The fan and atomization air can be
adjusted independently.

Operating the Spray
Function
Applying a minimum of 50 psi (0.35 MPa, 3.5 bar) air
pressure to the gun manifold’s cylinder air fitting (CYL)
will retract the gun piston, which opens the air valves
and a short time later opens the fluid needle. This provides the proper air lead and lag when triggering the
gun. A spring returns the piston when the cylinder air is
shut off.

Gun Features and Options
•

The gun is designed for use with a reciprocator, and
can be mounted directly on a 1/2 in. (13 mm) rod.
With additional brackets, the gun can be mounted
for robotic applications.

•

The gun’s quick-disconnect design enables its
removal without disconnecting the fluid and air lines
to the gun.

•

Gun functions are activated from a separate controller that sends the appropriate signal to the actuating
solenoids.

•

The optional fiber optic readout system can be
installed to monitor the gun’s spraying voltage. A
fiber optic cable connected to the gun manifold carries the signal from the gun to a remote display
module. Part No. 224117 Display Module displays
the gun’s spraying voltage and current. Battery-operated Display Module 189762 displays the
gun’s spraying voltage only.

Changing the kV Setting
Operating the Electrostatics
To operate the electrostatics, apply air pressure to the
gun manifold’s turbine air fitting (TA) through a Graco
grounded air hose. The air enters the manifold and is
directed to the inlet of the power supply turbine. The air
spins the turbine, which then provides electrical power
to the internal high voltage power supply. The fluid is
charged by the spray gun electrode. The charged fluid is
attracted to the nearest grounded object, wrapping
around and evenly coating all surfaces.
The turbine air is exhausted into the shroud and out the
back of the manifold through the exhaust fitting (EXH).
The exhaust air helps keep contaminants out and helps
keep the gun clean.

The gun’s full voltage setting is 85 kV. Three lower voltage settings are possible by actuating the KV1 and KV2
switches. Supply 50 psi (0.35 MPa, 3.5 bar) air pressure
to the KV1 and KV2 ports. Turn the air on or off as
shown in Table 1 to set the desired voltage.
The solenoid valves used to activate the KV1 and KV2
switches must bleed the air out of the lines for the
switches to draw back to the higher voltage setting.

Table 1: KV1 and KV2 Switch Settings
KV1 Air

KV2 Air

Output Voltage (kV)

OFF

309297L

Introduction

F
KV1
TA
FO
CYL
KV2
A1

TI1557A

E
EXH
C

D
H
TI1577A

Manifold Back View
TI1561A

Fig. 1: Gun Overview
Key
A

Air Cap

Fluid Nozzle

Retaining Ring

Shroud

Mounting Bracket

Manifold

Turbine

Power Supply

Electrode

309297L

Manifold Markings
A1

Atomization Air Inlet Fitting

Fan Air Inlet Fitting

CYL

Cylinder Air Inlet Fitting

EXH

Shroud Exhaust Outlet Fitting

Fiber Optic Fitting (shipped unassembled)

KV1

kV Switch 1 Air Inlet

KV2

kV Switch 2 Air Inlet

Fluid Supply Inlet Fitting

Fluid Return Inlet Fitting (optional)

Turbine Air Inlet Fitting

Installation

Installation
Install the System
WARNING
Fire, Explosion, and Electric Shock Hazard
Installing and servicing this equipment
requires access to parts which may cause
electric shock or other serious injury if work
is not performed properly.
•Do not install or service this equipment
unless you are trained and qualified.
•Be sure your installation complies with
National, State and Local codes for the
installation of electrical apparatus in a Class
I, Div. I, Group D or a Group II,
Category 2G Hazardous Location.
•

Comply with all applicable local, state, and
national fire, electrical, and other safety regulations.

FIGURE 2 shows a typical electrostatic air spray system,
and FIGURE 3 shows possible system options. It is not
an actual system design. For assistance in designing a
system to suit your particular needs, contact your Graco
distributor.

Warning Signs
Mount warning signs in the spray area where they can
easily be seen and read by all operators. An English
Warning Sign is provided with the gun.

Ventilate the Spray Booth

Electrically interlock the gun turbine air supply (B) with
the ventilators to prevent gun operation without ventilating fans operating. Check and follow all National, State,
and Local codes regarding air exhaust velocity requirements.
High velocity air exhaust will decrease the operating efficiency of the electrostatic system. The minimum allowable air exhaust velocity is 60 ft/minute (19 linear
meters/minute).
Key to FIGURE 2 and FIGURE 3
A

Air Hose Ground Wire

Graco Grounded Turbine Air Hose (TA)

Atomizing Air Hose, 3/8 in. (10 mm) OD (A1)

Fan Air Hose, 3/8 in. (10 mm) OD (A2)

Cylinder Air Hose, 5/32 in. (4 mm) OD (CYL)

Fluid Hose, 1/4-18 npsm gun fluid inlet (P1)

To Fluid Supply

Auto PRO Xs Air Spray Gun

Mounting Bracket for 1/2 in. (13 mm) rod

Solenoid Valve, requires quick exhaust port

Bleed-Type Master Air Valve

Air Pressure Regulator

True Earth Ground

24 Volt Power Supply

4-20 microampere Outputs

Full Feature ES Display Module

kV Only ES Display Module (battery operated)

Fiber Optic Y Cable

Bulkhead

Fiber Optic Cable

Main Air Line

kV Switch Air Hose, 5/32 in. (4 mm) OD (optional; plug KV1
fitting if not used)

kV Switch Air Hose, 5/32 in. (4 mm) OD (optional; plug KV2
fitting if not used)

WARNING
Flammable or Toxic Vapor Hazard
Provide fresh air ventilation to avoid the buildup of
flammable or toxic vapors when spraying, flushing, or
cleaning the gun. Do not operate the gun unless ventilation fans are operating.

309297L

Installation

NOTE:
* The turbine air supply (TA) must be electrically interlocked with the spray booth ventilation fans to prevent
the power supply from operating without ventilating fans on.

See *
above

A
K

KV1
TA

X Y

D
KV2

K
A1

A2
CYL

K
N
E

M
J

G
Non-Hazardous Area

Hazardous Area
TI1712A

Manifold Back View
Fig. 2: Typical Installation

NOTE:
** A maximum of two splices with a total of 108 ft (33 m) of cable can be used. For the strongest light signals, use a minimum number of bulkhead splices. See Accessories on page 53.

Non-Hazardous Area

Hazardous Area

P
R

U**
H

KV
μA

V**

Q
85.0 KV

TI1583A

S
Fig. 3: Optional Fiber Optic Connection to Voltage

309297L

Display Module

Installation

Install the Air Line
Accessories
1. Install a bleed-type air valve (L) on the main air line
(W) to shut off all air to the gun (H).
2. Install an air line filter/water separator on the gun 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. Install a bleed-type air regulator (M) on each of the
air supply lines (B, C, D, E, X, Y) to control air pressure to the gun.
4. Install a solenoid valve (K) on the cylinder air line
(E) to actuate the gun. The solenoid valve must
have a quick exhaust port.

WARNING
Pressurized Equipment Hazard
Trapped air can cause the gun to spray
unexpectedly, which can result in serious
injury, including splashing fluid in the eyes
or on the skin. The solenoid valves (K) must
have a quick exhaust port so trapped air will
be relieved between the valve and gun
when the solenoids are shut off.

WARNING
Pressurized Equipment Hazard
The fluid drain valve 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 sufficient. Install a drain valve close
to the pump's fluid outlet. The drain valve
reduces the risk of serious injury, including
splashing in the eyes or on the skin.
2. Install a fluid regulator on the fluid line to control
fluid pressure to the gun.

Install the Gun and Mounting
Bracket
1. Loosen the mounting bracket’s two set screws (103)
and slide the bracket (102) onto a 1/2 in. (13 mm)
mounting rod. See FIGURE 4.
2. Position the gun and tighten the two set screws.
For added positioning reliability, insert a 1/8 in. (3 mm)
locating pin into the slot (NN) in the bracket and through
a hole in the rod. See the detail in FIGURE 4.

Install the Fluid Line
Accessories
2.88 in
(73.2 mm)

1. Install a fluid filter and drain valve at the pump outlet.

102
103
9.22 in
(234.2 mm)
NN

TI1570A

To nozzle tip

03460

Fig. 4: Mounting Bracket

309297L

Installation

Connect the Air and Fluid
Lines
FIGURE 3 shows a schematic of air and fluid line connections, and FIGURE 5 shows the manifold connections.
Connect the air and fluid lines as instructed.

WARNING

EXH

Shroud Exhaust Outlet Fitting
Connect a 1/4 in. (6 mm) OD x 4 ft (1.22 m) long tube to
this fitting.

Fiber Optic Fitting (Optional)
Connect the Graco Fiber Optic cable (see page 11).

KV1

kV Switch 1 Air Inlet Fitting
Connect a 5/32 in. (4 mm) OD tube between this fitting and
the solenoid.

KV2

kV Switch 2 Air Inlet Fitting
Connect a 5/32 in. (4 mm) OD tube between this fitting and
the solenoid.

Fluid Supply Inlet Fitting
Connect a 1/4 npsm swivel fitting between this fitting and
the fluid supply.

Fluid Return Inlet Fitting (optional)
Order Part No. 233676 Fluid Recirculation Kit.

Turbine Air Inlet Fitting
Connect the Graco Electrically Conductive Air Hose
between this fitting (left-hand thread) and the solenoid.
Connect the air hose ground wire to a true earth ground.

Electric Shock Hazard
To reduce the risk of electric shock or other
serious injury, the turbine air supply hose
must be electrically connected to a true
earth ground. Use only Graco Grounded
Air Supply Hose.
1. Connect the Graco Grounded Air Supply Hose (B)
to the gun's turbine air inlet (TA) and connect the
hose ground wire (A) to a true earth ground (N). The
gun turbine air inlet fitting has left-hand threads to
prevent connecting another type of air hose to the
turbine air inlet. See Accessories on page 52 for
further information about the hose.
2. Check the electrical grounding of the gun as
instructed on page 14.
3. Before connecting the fluid line (P1), blow it out with
air and flush it with solvent. Use solvent which is
compatible with the fluid to be sprayed.

KV2

KV1

TA
FO
CYL
A1

Manifold Connections
A1

Atomization Air Inlet Fitting
Connect a 3/8 in. (10 mm) OD tube between this fitting and
the air supply.

Fan Air Inlet Fitting
Connect a 3/8 in. (10 mm) OD tube between this fitting and
the air supply.

CYL

Cylinder Air Inlet Fitting
Connect a 5/32 in. (4 mm) OD tube between this fitting and
the solenoid. For quicker response, use the shortest hose
length possible.

309297L

EXH

TI1577A

Fig. 5: Manifold Connections

Installation

Optional Fiber Optic Cable
Connection
An optional fiber optic fitting is shipped unassembled
with the gun. If an ES (kV) display module is used,
install the fitting in the FO port of the manifold. See FIGURE 3, page 9, for a schematic of the fiber optic connections.
1. Remove the plug (120) from the fiber optic port, and
install the fiber optic fitting (5, shipped loose with the
gun). See FIGURE 6.

2. Remove the nut (AA) from the fiber optic fitting (5)
and slide the nut over the end of the fiber optic cable
(BB). See FIGURE 7.
3. Push the cable (BB) into the fitting (5) until it bottoms out. Tighten the nut (AA) to secure the cable.
5

BB
AA

5
TI1581A

Fig. 7: Fiber Optic Cable
Most of the fiber optic light transmission loss occurs at
the bulkhead splices. For the strongest light signals, use
a minimum number of bulkhead splices. A maximum of
two splices, with a total of 108 ft (33 m) of cable, is recommended.

120

TI1580A

4. See manual 308265 to install a Graco ES Display
Module.

Fig. 6: Fiber Optic Fitting

309297L

Installation

Grounding
WARNING

•

Air compressors and hydraulic power supplies:
ground the equipment according to the manufacturer's recommendations.

•

All air and fluid lines must be properly grounded.

•

All electrical cables must be properly grounded.

•

All persons entering the spray area: shoes must
have conductive soles, such as leather, or personal
grounding straps must be worn. Do not wear shoes
with non-conductive soles such as rubber or plastic.

•

Object being sprayed: keep the workpiece hangers
clean and grounded at all times. Resistance must
not exceed 1 megohm.

•

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.

•

Flammable liquids in the spray area: must be kept in
approved, grounded containers. Do not use plastic
containers. Do not store more than the quantity
needed for one shift.

•

All electrically conductive objects or devices in the
spray area: including fluid containers and wash
cans, must be properly grounded.

Fire, Explosion, and Electric Shock Hazard
When operating the electrostatic gun, any
ungrounded objects in the spray area (people, containers, tools, etc.) can become
electrically charged. Improper grounding
can result in static sparking, which can
cause a fire, explosion, or electric shock.
Follow the grounding instructions below.
The following are minimum grounding requirements for
a basic electrostatic system. Your system may include
other equipment or objects which must be grounded.
Check your local electrical code for detailed grounding
instructions. Your system must be connected to a true
earth ground.
•

•

Pump: ground the pump by connecting a ground
wire and clamp as described in your separate pump
instruction manual.
Electrostatic Air Spray Gun: ground the gun by connecting the Graco Grounded Air Hose to the turbine
air inlet and connecting the air hose ground wire to a
true earth ground. See Check Electrical Grounding, page 14.

309297L

Installation

Check Electrical Grounding
WARNING
Fire, Explosion, and Electric Shock Hazard
Megohmmeter Part No. 241079 (AA-see
FIGURE 8) is not approved for use in a hazardous area. To reduce the risk of sparking,
do not use the megohmmeter to check
electrical grounding unless:
• The gun has been removed from the
hazardous area;
• Or all spraying devices in the hazardous
area are turned off, ventilation fans in the
hazardous area are operating, and there
are no flammable vapors in the area
(such as open solvent containers or
fumes from spraying).

4. Measure the resistance between the turbine air inlet
fitting (TA) and a true earth ground (N).
a. If using a black or grey turbine air hose, use a
megohmmeter to measure the resistance. Use
an applied voltage of 500 minimum to 1000
volts maximum. The resistance should not
exceed 1 megohm.
b. If using a red turbine air hose, use an ohmmeter
to measure the resistance. The resistance
should not exceed 100 ohms.
3. If the resistance is greater than the maximum reading specified above for your hose, check the tightness of the ground connections and be sure the
turbine air hose ground wire is connected to a true
earth ground. If the resistance is still too high,
replace the turbine air hose.

Failure to follow this warning could cause
fire, explosion, and electric shock and result
in serious injury and property damage.

1. Have a qualified electrician check the electrical
grounding continuity of the spray gun and turbine air
hose.

2. Make sure the turbine air hose (B) is connected and
the hose ground wire is connected to a true earth
ground.
TI1584A

3. Turn off the air and fluid supply to the gun. The fluid
hose must not have any fluid in it.

Fig. 8. Check Gun Grounding

309297L

Installation

Check Fluid Resistivity

Check Fluid Viscosity
To check fluid viscosity you will need:

WARNING
Fire, Explosion, and Electric Shock Hazard

•

a viscosity cup

•

a stopwatch.

1. Completely submerge the viscosity cup in the fluid.
Lift the cup out quickly, starting the stopwatch as
soon as the cup is completely removed.

Check the fluid resistivity in a non-hazardous area only. Resistance Meter 722886
and Probe 722860 are not approved for use
in a hazardous area.

2. Watch the stream of fluid coming from the bottom of
the cup. As soon as there is a break in the stream,
shut off the stopwatch.

Failure to follow this warning could cause
fire, explosion, or electric shock and result
in serious injury and property damage.

3. Record the fluid type, elapsed time, and size of the
viscosity cup.

Graco Part No. 722886 Resistance Meter and 722860
Probe are available as accessories to check that the
resistivity of the fluid being sprayed meets the requirements of an electrostatic air spray system.

4. If the viscosity is too high or too low, contact the
material supplier. Adjust as necessary.

Follow the instructions included with the meter and
probe. Readings of 25 megohms-cm and above provide
the best electrostatic results.

Install the Fabric Cover
1. Install a fabric cover (XX) over the front of the gun
and slide it back to cover the exposed tubing and
hoses at the back of the manifold. See FIGURE 9.
2. Route the exhaust tube (YY) outside the cover. This
enables you to monitor the exhaust tube for the
presence of any paint or solvent. See Check for
Fluid Leakage on page 25. Strap down the exhaust
tube to prevent it from moving around.

YY
YY
ti1571a

TI1579A

Fig. 9. Fabric Cover

309297L

Installation

245324 HC Conversion Kit

6. Slide the loops of the hc tube (19) onto the gun barrel (9).

Part No. 245324 Conversion Kit is available to convert
PRO Auto Xs standard coating guns (Part No. 244589)
to high conductivity guns (244590).

7. Make sure the barrel threads are clean and dry.
Apply Graco Part No. 116553 dielectric grease to
the fluid fitting (19d) threads and o-rings. Thread
the fitting into the barrel inlet. See FIGURE 10.

The kit is for use with fluids with low resistivity values.

WARNING

8. Slide the nut (20) and ferrules (21, 22) onto the
coiled tube (19). Insert the end of the tube into the
fitting (23). Make sure the ferrules seat in the fitting.
Tighten the nut (20).

Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
before installing this kit.

1. Turn the turbine air (TA) off.
2. Flush the gun.
23

19
3. Relieve the pressure.

22
21

4. Remove the retaining ring (1), air cap (3), and
shroud (2).

19d
TI1731A

5. Refer to the parts drawing for Model 244589 on
page 45. Loosen the two nuts (20) and remove the
fluid tube (19) and ferrules (21, 22). Remove the
other parts (14, 15, 16, 17, 18) at the gun barrel
inlet.

Fig. 10. HC Conversion Kit

309297L

Operation

Operation
Pressure Relief Procedure

2. Turn off the fluid supply to the gun.
3. Trigger the gun into a grounded metal waste container to relieve the fluid pressure.

WARNING
Pressurized Equipment Hazard
The system pressure must be manually
relieved to prevent the system from starting
or spraying accidentally. To reduce the risk
of an injury from electric shock, accidental spray from
the gun, splashing fluid, or moving parts, follow the
Pressure Relief Procedure whenever you:
•

are instructed to relieve the pressure

•

stop spraying

•

check or service any of the system equipment

•

or install or clean the fluid nozzle.

4. If an air pilot fluid regulator is used, turn off the air
pressure at the regulator air inlet.
5. Relieve fluid pressure in the fluid supply equipment
as instructed in its instruction manual.
6. Turn off the main air supply by closing the
bleed-type master air valve on the main air supply
line. Leave the valve closed until you are ready to
spray again.

1. Turn off all the air to the spray gun except the cylinder air, which triggers the gun. If an air pilot fluid
regulator is used in the system, the air pressure is
needed at the regulator air inlet.

309297L

Operation

Operating Checklist
Check the following list daily, before starting to operate
the system, to help ensure you of safe, efficient operation.

All operators are properly trained to safely
operate an automatic electrostatic air spray
system as instructed in this manual.

Select a Fluid Nozzle and Air
Cap
WARNING
Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
before removing or installing a fluid nozzle
and/or air cap.

All operators are trained in the Pressure
Relief Procedure on page 17.
The warning sign provided with the gun is
mounted in the spray area where it can be
easily seen and read by all operators.
The system is thoroughly grounded and the
operator and all persons entering the spray
area are properly grounded. See Grounding
on page 13.

The gun is supplied with Part No. 197266 Nozzle and
24A438 Air Cap. If you require a different size, refer to
Table 2 and Table 3 , and instruction manual 309419, or
consult with your Graco distributor. See Air Cap/Nozzle
Replacement on page 34.

Table 2: Fluid Nozzles

The condition of the gun’s electrical components has been checked as instructed in Electrical Tests on page 26.

Part No.

Size,
mm (in.)

Part No.

Size,
mm (in.)

Ventilation fans are operating properly.

197263

0.75 (.030)

197266

1.5 (.055)

197264

1.0 (.042)

197267

1.8 (.070)

197265

1.2 (.047)

197268

2.0 (.080)

Workpiece hangers are clean and grounded.

Table 3: Air Caps
All debris, including flammable fluids and rags,
is removed from the spray area.

Part No.

Pattern Shape
and Length in.
(mm)

Recommended Fluids and
Production Rates

All flammable fluids in the spray booth are in
approved, grounded containers.

24A438

Round end;
15-17 (381-432)

Light to medium viscosity.
Up to 15 oz/min (450
cc/min)

All conductive objects in the spray area are
electrically grounded and the floor of the spray
area is electrically conductive and grounded.

24A279

Round end;
14-16 (356-406)

The manifold exhaust tubes have been
checked for the presence of any fluid as
instructed in Check for Fluid Leakage on
page 25.

Medium to high viscosity
and high solids.
Up to 15 oz/min (450
cc/min)

24A376*

Tapered end;
17-19 (432-483)

Light to medium viscosity.
Up to 15 oz/min (450
cc/min)

24A274

Tapered end;
12-14 (305-356)

Light to medium viscosity.
Up to 15 oz/min (450
cc/min)

Round end;
11-13 (279-330)

Medium to high viscosity
and high solids.
Up to 15 oz/min (450
cc/min)
For use with 2.0 mm nozzle.

24A439

* Also available in the following colors: 24A276 - blue,
24A277 - red, 24A278 - green

309297L

Operation

Adjust the Spray Pattern
Follow the steps below to establish the correct fluid flow
and air flow. Do not turn on the turbine air (TA) yet.

WARNING

4. Use the air pressure regulator on the atomization air
supply line (A1) to adjust the degree of atomization.
See FIGURE 12. For example, for a fluid flow rate of
10 ounces per minute (0.3 liters per minute), a typical atomization pressure would be 20-30 psi
(1.4-2.1 bar, 0.14-0.21 MPa) at the gun manifold.
5. Use the air pressure regulator on the fan air supply
line (A2) to adjust the pattern size.

Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
whenever you are instructed to relieve the
pressure.

•

For the most efficiency, always use the lowest air
pressure possible.

•

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.

•

See Spray Pattern Troubleshooting on page 29 to
correct spray pattern problems.

1. Relieve the pressure.
2. Loosen the air cap retaining ring, and rotate the air
cap for a vertical or horizontal spray pattern. See
FIGURE 11. Tighten the retaining ring until the air cap
is held firmly in place; you should not be able to
rotate the air cap horns by hand.

KV2

KV1

TA
CYL
Vertical Pattern

Horizontal Pattern
Fig. 11. Air Cap Positions
3. Adjust the fluid flow with the fluid pressure regulator.
Refer to instruction manual 309419 to set the fluid
pressure for various fluid flows, according to the
size of the fluid nozzle being used.
TI1577A

Fig. 12. Manifold Air Connections

309297L

Operation

Adjust the Electrostatics
Table 4: Dynamic Turbine Air Pressures
1. Shut off the fluid supply.
2. Trigger the gun, then turn on the turbine air (TA).
See FIGURE 12.
3. Refer to Table 4 to set the proper pressure at the
turbine air hose inlet when air is flowing. Do not
exceed these pressures as there is no added benefit and turbine life could be reduced.

Turbine Air
Hose Length
ft (m)

Air pressure at turbine air hose
inlet for full voltage
psi (bar, MPa)

15 (4.6)

54 (3.8, 0.38)

25 (7.6)

55 (3.85, 0.38)

36 (11)

56 (3.9, 0.39)

50 (15.3)

57 (4.0, 0.40)

75 (22.9)

59 (4.1, 0.41)

100 (30.5)

61 (4.3, 0.43)

4. Check the voltage output of the gun using a high
voltage probe and meter or by reading the ES (kV)
Display Module.
The gun’s normal high voltage reading is 60-70 kV. If a
ball end high voltage measurement probe is used, the
gun voltage will rise to about 85 kV. This will happen
with all resistive electrostatic guns.
See Electrical Troubleshooting on page 31 to correct
voltage problems.

309297L

Operation

Spraying

Triggering the Fluid Alone
WARNING

Electric Shock Hazard
To reduce the risk of electric shock, do not
touch the gun electrode or come within 4 in.
(10 cm) of the nozzle during gun operation.
1. Apply a minimum of 50 psi (3.5 bar, 0.35 MPa) air
pressure to the cylinder air fitting (CYL) to activate
the on/off sequence of atomization air (A1), fan air
(A2), and fluid (P1). See FIGURE 12.

1. Shut off and relieve the air pressure to the atomization (A1) and fan (A2) air lines, using the bleed-type
air shutoff valves.
2. Apply 50 psi (3.5 bar, 0.35 MPa) air pressure to the
cylinder air fitting (CYL) to trigger the fluid.

Shutdown
WARNING
Pressurized Equipment Hazard

2. Turn the gun functions on and off by using the air
solenoid valves on the cylinder (CYL) and turbine
(TA) air supply lines.
3. To change to a lower voltage setting, activate the
solenoids controlling the KV1 and KV2 ports. See
Changing the kV Setting on page 6.

WARNING

To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
when you stop spraying and whenever you
are instructed to relieve the pressure.
1. Relieve the pressure.
2. Flush and clean the equipment. See Maintenance
on page 22.

Fire and Explosion Hazard
If any fluid leakage from the gun is
detected, stop spraying immediately. Fluid
leakage into the gun shroud could cause
fire or explosion and result in serious injury
and property damage. See Check for Fluid
Leakage on page 25.

309297L

Maintenance

Maintenance
Daily Care and Cleaning
CAUTION
•

Clean all parts with a non-conductive, compatible
solvent. Conductive solvents can cause the gun to
malfunction.

•

Do not use methylene chloride as a flushing or
cleaning solvent with this gun as it will damage
nylon components.

•

Fluid in the air passages could cause the gun to
malfunction and could draw current and reduce the
electrostatic effect. Fluid in the power supply cavity
can reduce the alternator life. Whenever possible,
point the gun down when cleaning it. Do not use
any cleaning method which could allow fluid into
the gun air passages.

Do not immerse the gun in fluid.

TI1573A

Do not point the gun up while cleaning it.

Do not wipe the gun with a cloth that is heavily
saturated; wring out the excess fluid.

02027A

TI1574A

309297L

Maintenance

Daily Care and Cleaning,
continued

•

Check the electrode and replace if broken or damaged. See Electrode Replacement on page 35.

•

Check for fluid leakage from the gun and fluid
hoses. See Check for Fluid Leakage on page 25.
Tighten fittings or replace equipment as needed.

•

Flush the gun before changing colors and whenever
you are done operating the gun.

WARNING
Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
before doing any maintenance on the gun
or system.

WARNING
Fire, Explosion, and Electric Shock Hazard

•

Clean the fluid and air line filters daily.

•

Clean the outside of the gun daily with a soft cloth
dampened in a compatible solvent.

•

Clean the air cap and fluid nozzle daily, minimum.
Some applications require more frequent cleaning.
Replace the fluid nozzle and air cap if they are damaged. See Clean the Air Cap and Fluid Nozzle,
page 24.

309297L

To reduce the risk of fire, explosion, or electric shock, turn off the turbine air (TA)
before flushing the gun or any part of the
system.

Maintenance

Clean the Air Cap and Fluid
Nozzle

CAUTION

Equipment Needed
•

soft bristle brush

•

compatible solvent

Do not use metal tools to clean the
air cap or fluid nozzle holes as this
could scratch them, and make sure
the electrode is not damaged.
Scratches in the air cap or nozzle or
a damaged electrode can distort the
spray pattern.

Procedure

WARNING
Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
when you stop spraying and whenever you
are instructed to relieve the pressure.
1. Relieve the pressure.
2. Remove the air cap assembly (1, 3) and shroud (2).
See FIGURE 13.

6. Slide the shroud (2) onto the gun.
7. Carefully install the air cap (3). Be sure to insert the
electrode (7) through the center hole of the air cap.
Rotate the air cap to the desired position.
8. Make sure the u-cup (1a) is in place on the retaining
ring (1). The lips must face forward. Tighten the
retaining ring until the air cap is held firmly in place;
you should not be able to rotate the air cap horns by
hand.
9. Test gun resistance, page 26.

3. Wipe the fluid nozzle (4), shroud (2), and exterior of
the gun clean with a cloth dampened in solvent.
Avoid getting any solvent into the air passages.
Whenever possible, point the gun down when
cleaning it.

4. If it appears that there is paint inside the fluid nozzle
(4) air passages, remove the gun from the line for
servicing.
TI1560A

5. Clean the air cap (3) with the soft bristle brush and
solvent or submerge the air cap in suitable solvent
and wipe it clean.
1a
3

Fig. 13. Clean Air Cap and Fluid Nozzle

309297L

Maintenance

Check for Fluid Leakage
WARNING
WARNING

Pressurized Equipment Hazard
To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
when you stop spraying and whenever you
are instructed to relieve the pressure.

During operation, periodically check the manifold
exhaust tube (YY) and both ends of the gun shroud (ZZ)
for the presence of fluid. See FIGURE 14. Fluid in these
areas indicates leakage into the shroud, which could be
caused by leaks at the fluid tube connections or fluid
packing leakage.
If fluid is seen in these areas, stop spraying immediately. Relieve the pressure, then remove the gun for
repair.

YY
YY
ZZ
ZZ

ti1571a

TI1579A

Fig. 14. Check for Fluid Leakage

309297L

Electrical Tests

Electrical Tests
Electrical components inside the gun affect performance
and safety. The following procedures test the condition
of the power supply (12) and electrode (7), and electrical
continuity between components.

Use megohmmeter Part No. 241079 (AA) and an
applied voltage of 500 V. Connect the leads as shown.
AA

WARNING
TI1577A

Fire, Explosion, and Electric Shock Hazard
Megohmmeter Part No. 241079 (AA-see
FIGURE 15) is not approved for use in a hazardous area. To reduce the risk of sparking,
do not use the megohmmeter to check
electrical grounding unless:

•The gun has been removed from the hazardous area;
•Or all spraying devices in the hazardous
area are turned off, ventilation fans in the
hazardous area are operating, and there
are no flammable vapors in the area
(such as open solvent containers or
fumes from spraying).

7
TI1585B

Fig. 15. Test Gun Resistance

Failure to follow this warning could cause
fire, explosion, and electric shock and result
in serious injury and property damage.

Test Gun Resistance
1. Flush and dry the fluid passage.
2. Measure resistance between the electrode needle
tip (7) and the gun body (32) or the turbine air inlet
fitting (TA); it should be 156-180 megohms. If outside this range, remove the gun for service (page
32) and go to the next test. If in range, refer to Electrical Troubleshooting on page 31 for other possible causes of poor performance.

309297L

Electrical Tests

Test Power Supply
Resistance

6. Be sure the spring (12b) is in place before reinstalling the power supply.

1. Remove the power supply (12), page 42.
2. Remove the turbine alternator (13) from the power
supply, page 43.
3. Measure resistance from the power supply's ground
strips (EE) to the spring (12b). See FIGURE 16.
4. The resistance should be 135-150 megohms. If outside this range, replace the power supply. If in
range, proceed to the next test.
5. If you still have problems, refer to Electrical Troubleshooting on page 31 for other possible causes
of poor performance, or contact your Graco distributor.

309297L

12b

ti1599a

Fig. 16. Test Power Supply Resistance

Electrical Tests

Test Electrode Resistance
1. Insert a conductive rod (B) into the gun barrel
(removed for the power supply test) and against the
metal contact (C) in the front of the barrel.
2. Measure the resistance between the conductive rod
(B) and the electrode (7). The resistance should be
20-30 megohms. See FIGURE 17.
3. If in range, refer to Electrical Troubleshooting on
page 31 for other possible causes of poor performance, or contact your Graco distributor.
4. Remove the electrode (7), page 35. Measure the
resistance between the contact (E) and the electrode wire (F). The resistance should be 20-30 megohms. If out of range, replace the electrode. See
FIGURE 18.

ti1548a

Fig. 18. Electrode

5. Make sure the metal contact (C) in the barrel, the
nozzle contact ring (4a, FIGURE 19), and the electrode contacts (E) are clean and undamaged.
ti1513a

Fig. 19. Nozzle Conductive O-Ring

C
7

B
ti1499a

Fig. 17. Test Electrode Resistance

309297L

Troubleshooting

Troubleshooting
WARNING
Electric Shock Hazard

WARNING
Pressurized Equipment Hazard

Installing and servicing this equipment
requires access to parts which may cause
an electric shock or other serious injury if
the work is not performed properly. Do not install or
repair this equipment unless you are trained and
qualified.

To reduce the risk of an injury, follow the
Pressure Relief Procedure on page 17
whenever you are instructed to relieve the
pressure.
Check all possible remedies in the Troubleshooting
Chart before disassembling the gun.

Spray Pattern Troubleshooting
Some spray pattern problems are caused by the improper balance between air and fluid.

Problem

Cause

Solution

Fluttering or spitting spray.

No fluid.

Refill supply.

Loose, dirty, damaged nozzle/seat.

Clean or replace nozzle, page 34.

Air in fluid supply.

Check fluid source. Refill.

Damaged nozzle or air cap.

Replace, page 34.

Fluid buildup on air cap or nozzle.

Clean. See page 24.

Fan air pressure too high.

Decrease.

Fluid too thin.

Increase viscosity.

Improper spray pattern.

Streaks.

309297L

Fluid pressure too low.

Increase.

Fan air pressure too low.

Increase.

Fluid too thick.

Reduce viscosity.

Too much fluid.

Decrease flow.

Did not apply 50% overlap.

Overlap strokes 50%.

Dirty or damaged air cap.

Clean or replace, page 34.

Troubleshooting

Gun Operation Troubleshooting
Problem

Cause

Solution

Excessive spray fog.

Atomizing air pressure too high.

Decrease air pressure as low as possible.

Fluid too thin.

Increase viscosity.

Atomizing air pressure too low.

Increase air pressure; use lowest air
pressure necessary.

Poorly mixed or filtered fluid.

Remix or refilter fluid.

Fluid too thick.

Reduce viscosity.

Fluid leaks from the fluid packing
area

Worn packings or rod.

Replace packings or rod; see pages
36 or 37.

Air leaks from the air cap

Worn piston stem o-rings (34e, 34f).

Replace; see page 38.

Fluid leakage from the front of the
gun

Worn or damaged packing rod (8).

Replace; see page 36

Worn fluid seat.

Replace fluid nozzle (4) and/or electrode needle (7); see pages 34 to 35.

“Orange Peel” finish.

Loose fluid nozzle (4).

Tighten; see page 34.

Damaged nozzle o-ring (4b).

Replace; see page 34.

Low fluid supply.

Add fluid if necessary.

Damaged air cap (3).

Replace; see page 34.

Dirty or clogged fluid nozzle (4).

Clean; see page 34.

Damaged fluid nozzle (4).

Replace; see page 34.

Piston (34) not actuating.

Check cylinder air. Check piston
u-cup (34d); see page 38.

Actuator arm (29) is out of position.

Check actuator arm and nuts. See
page 39.

Misaligned air cap (3) and fluid nozzle (4).

Clean fluid buildup off air cap and
fluid nozzle seat; see page 24.

Damaged nozzle orifice.

Replace nozzle (4); see page 34.

Fluid is coming on before the air.

Check actuator arm and nuts. See
page 39.

Air leaks from manifold

Manifold is not tight.

Tighten manifold screws (106).

Fluid leaks at the quick-disconnect.

Manifold is not tight.

Tighten manifold screws (106).

Fluid hose o-rings are worn or missing.

Inspect or replace o-rings.

Gun does not spray

Dirty air cap

309297L

Troubleshooting

Electrical Troubleshooting
Problem

Cause

Solution

Poor wrap.

Turbine air is not turned on.

Turn on.

Booth exhaust velocity is too high.

Reduce velocity to within code limits.

Atomizing air pressure too high.

Decrease.

Fluid pressure too high.

Decrease.

Incorrect distance from gun to part.

Should be 8-12 in. (200-300 mm).

Poorly grounded parts.

Resistance must be 1 megohm or
less. Clean workpiece hangers.

Faulty gun resistance.

See Test Gun Resistance on page
26.

Low fluid resistivity.

Check fluid resistivity, page 15.

Fluid leaks from the packing (8d) and Clean the packing rod cavity.
causes a short.
Replace the packing rod. See page
37.
Faulty turbine alternator.

Be sure the plug is in place on the
back of the turbine alternator housing. Remove and test the turbine
alternator. See page 43.

The KV switch is stuck on low.

Check the switch actuation; replace if
needed.

No power.

Replace power supply. See page 42.

No voltage or low voltage reading on Damaged fiber optic cable or connec- Check; replace damaged parts.
the gun ES display module
tion.

Operator gets mild shock.

Turbine air is not turned on.

Turn on.

Poor wrap.

See causes and solutions under Poor
Wrap, above.

Operator not grounded or is near
ungrounded object.

See Grounding on page 13.

Gun not grounded.

See Check Electrical Grounding on
page 14 and Test Gun Resistance
on page 26.

Operator gets shock from workpiece. Workpiece not grounded.

309297L

Resistance must be 1 megohm or
less. Clean workpiece hangers.

Repair

Repair
Prepare the Gun for Service

•

Check all possible remedies in Troubleshooting
before disassembling the gun.

•

Use a vise with padded jaws to prevent damage to
plastic parts.

•

Lubricate the power supply o-ring (12a), some packing rod parts (8), and certain fluid fittings with Part
No. 116553 Dielectric Grease, as specified in the
text.

•

Lightly lubricate o-rings and seals with non-silicone
grease. Order Part No. 111265 Lubricant. Do not
over-lubricate.

•

Only use genuine Graco parts. Do not mix or use
parts from other PRO Gun models.

WARNING
Electric Shock Hazard
Installing and repairing this equipment
requires access to parts that may cause
electric shock or other serious injury if the
work is not performed properly. Do not install or service this equipment unless you are trained and qualified.

WARNING
1. Flush and clean the gun, page 22.
Pressurized Equipment Hazard
2. Relieve the pressure, page 17.
To reduce the risk of injury, follow the Pressure Relief Procedure on page 17 before
checking or servicing any part of the system
and whenever you are instructed to relieve the pressure.

3. Remove the gun from the manifold, page 33.
4. Remove the gun from the worksite. Repair area
must be clean.

309297L

Repair

Remove the Gun from the
Manifold

Install the Gun on the
Manifold

1. Loosen the bottom gun screw (31) until the gun sits
loosely in the mounting bracket slot (A). See FIGURE
20.

1. Make sure the gasket (112) and spring (105) are in
place on the manifold. See FIGURE 20. Inspect the
parts for damage and replace them as needed.
2. Secure the gun to the manifold by tightening the
three screws (106).

CAUTION
The piston return spring (105) is compressed
between the manifold and the gun body when they
are assembled. To avoid sudden movement of the
gun, loosen the bottom gun screw (31) before loosening the three manifold screws (106). This allows
the gun to move forward gradually as the manifold
screws are loosened. Hold the gun firmly in hand
while loosening the manifold screws.

3. Secure the gun to the mounting bracket (102) by
tightening the bottom screw (31).

2. Holding the gun firmly in hand, loosen the three
screws (106) from the back of the manifold.
3. Remove the gun from the manifold and take it to the
service area.

106

112
105
A

TI1559A

102

Fig. 20. Remove Gun from Manifold

309297L

Repair

Air Cap/Nozzle Replacement
WARNING
CAUTION

Fire, Explosion, and Electric Shock Hazard

Hold the front end of the gun up and trigger the gun
while removing the nozzle to help drain the gun and
prevent any paint or solvent left in the gun from entering the air passages.
1. Prepare gun for service, page 32.
2. Remove the retaining ring (1) and air cap (3). See
FIGURE 21.
3. Point gun up while removing the fluid nozzle (4)
assembly with the multi-tool (40).

40
1

5. Install the fluid nozzle (4) with the multi-tool (40).
Tighten until the fluid nozzle seats in the gun barrel
(1/8 to 1/4 turn past hand-tight).

6. Carefully install the air cap (3). Be sure to insert the
electrode (7) through the center hole of the air cap.
Rotate the air cap to the desired position.

7
4
4a

Use non-silicone grease, Part No. 111265, on the small
o-ring (4b). Do not over-lubricate. Do not lubricate the
contact ring (4a).
4. Lightly lubricate the o-ring (4b). Install it and the
contact ring (4a) on the nozzle (4).
Make sure the electrode needle (7) is finger- tight (page
35).

1, 3

The nozzle contact ring (4a) is a conductive
contact ring, not a sealing o-ring. To reduce
the risk of sparking or electric shock, do not
remove the nozzle contact ring (4a) except
to replace it and never operate the gun
without the contact ring in place. Do not
replace the contact ring with anything but a
genuine Graco part.

7. Make sure the u-cup (1a) is in place on the retaining
ring (1). The lips must face forward. Tighten the
retaining ring until the air cap is held firmly in place;
you should not be able to rotate the air cap horns by
hand.

4b
8. Test gun resistance, page 26.
TI1572A

Fig. 21. Air Cap/Nozzle Replacement

9. Install the gun onto the manifold and bracket. See
page 33.

309297L

Repair

Electrode Replacement
1. Prepare the gun for service, page 32.
2. Remove the air cap and nozzle, page 34. Remove
the gun shroud (2).
3. Unscrew the electrode (7) with the multi-tool (40).
Hold the packing rod end (8h) to prevent it from
turning, FIGURE 22.

CAUTION
To avoid damaging the plastic threads, be very careful when installing the electrode.

4. Apply low-strength (purple) Loctite® or equivalent
thread sealant to the electrode and packing rod
threads. Install the electrode finger-tight. Do not
overtighten.
5. Install the fluid nozzle, page 34.
6. Test gun resistance, page 26.
TI1565A

7. Install the gun shroud (2) and air cap, page 34.
Fig. 22. Electrode Replacement
8. Install the gun onto the manifold and bracket. See
page 33.

309297L

Repair

Fluid Packing Removal
You may replace the packing rod as an assembly, as
described below, or as individual parts (see page 37).
The assembly is pre-adjusted at the factory.

Before installing the packing rod, clean the internal surface of the barrel (9) with a soft cloth or brush. Check for
marks from high voltage arcing. If marks are present,
replace the barrel.

1. Prepare the gun for service, page 32.
2. Remove the air cap, page 34. Remove the gun
shroud (2).
3. Remove the jam nut (28) and actuator arm (29).
See page 38.
The fluid nozzle (4) must be in place when removing or
installing the jam nut and actuator arm.

4. Remove the fluid nozzle (4) and electrode (7). See
pages 34 and 35.

5. Remove the packing rod (8), using the multi-tool
(40).

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.
TI1566A

6. Check all parts for wear or damage and replace if
necessary.

Fig. 23. Fluid Packing Removal

309297L

Repair

Packing Rod Repair
You may replace the packing rod as individual parts, as
described below, or as an assembly (see page 36). The
assembly is pre-adjusted at the factory.

4. Lightly tighten the packing nut (8e). The packing nut
is properly tightened when there is 3 lb (13.3 N) of
drag force when sliding the packing housing (8f)
assembly along the rod. Tighten or loosen the packing nut as needed.

Before installing the fluid packing rod into the gun barrel,
make sure the internal surfaces of the barrel are clean.
Remove any residue with a soft brush or cloth. Check
the inside of the barrel for marks from high voltage arcing. If marks are present, replace the barrel.

5. Install the o-ring (8a) on the outside of housing (8f).
Lubricate the o-ring with non-silicone grease, Part
No. 111265. Do not over-lubricate.

To assemble the individual parts:

7. Install the packing rod assembly (8) into the gun
barrel. Using the multi-tool (40), tighten the assembly until just snug.

1. Place the packing nut (8e) and seal (8b) on the fluid
rod (8h). Flats on the packing nut must face the
back of the fluid rod. The seal o-ring must face away
from the packing nut. See FIGURE 24.
2. Fill the inner cavity of the spacer (8g) with dielectric
grease. Place the spacer on the fluid rod (8h) in the
direction shown. Generously apply dielectric grease
to the outside of the spacer.
3. Place the rod packing (8d), packing spreader (8c),
and housing (8f) on the packing rod (8h).

6. Install the spring (25) against the nut (E) as shown.

8. Install the electrode, page 35 and nozzle, page 34.
9. Install and adjust the actuator arm (29) and jam nut
(28). See page 39.
10. Test gun resistance, page 26.
11. Install the gun shroud (2) and air cap, page 34.
12. Install the gun onto the manifold and bracket. See
page 33.
E

TI1489A

8h
8e
8b
8g
8d

8c
8f
8a

Fig. 24. Packing Rod

309297L

Repair

Piston Repair
Table 5: Piston O-Rings
1. Prepare the gun for service, page 32.
Description

2. Remove the air cap, page 34. Remove the gun
shroud (2).
3. Remove the jam nut (28), actuator arm (29), and
adjustment nut (30). See FIGURE 25.
The fluid nozzle (4) must be in place when removing or
installing the jam nut and actuator arm.

Function

Shaft O-Ring
(34g)

Seals cylinder air along the piston rod
(34b). Replace if air leaks along rod.

Front O-Ring
(34e)

Air shutoff seal. Replace if air leaks from
air cap when gun is de-triggered.

Back O-Ring
(34f)

Separates cylinder air from fan and
atomizing air.

U-Cup (34d)

Replace if air leaks from small vent hole
at back of manifold when gun is triggered.

34a
34d
34c

TI1709A

29 30 34b

34f
34e

Fig. 25. Actuator Arm
TI1575A

4. Push on the piston rod (34b) to push the piston out
the back of the gun.
5. Inspect the o-rings (34e, 34f, 34g) and u-cup packing (34d) for damage. See Table 5 and FIGURE 26.
6. Lubricate the o-rings (34e, 34f, 34g) and u-cup
packing (34d) with non-silicone grease, Part No.
111265. Do not over-lubricate.
7. Align the two stems (34c) with the holes in the gun
body and press the piston assembly into the back of
the gun until it bottoms.

34b
34d
34g
34f
34e

Fan Air Side

34g
TI1576A

8. Install and adjust the actuator arm, page 39.

Atomizing Air Side

Fig. 26. Piston O-Rings

309297L

Repair

Adjust the Actuator Arm

5. Install the gun shroud (2) and air cap (3), page 34.

The fluid nozzle (4) must be in place when removing or
installing the jam nut and actuator arm.

6. Install the gun onto the manifold and bracket. See
page 33.

1. Install the adjustment nut (30), actuator arm (29),
and jam nut (28) onto the piston rod (34b). Note that
the jam nut (28) has a slightly larger hex and a thinner profile than the adjustment nut (30). See FIGURE
25 on page 38.

0.125 in. (3 mm) gap

2. Position the parts so there is a 0.125 in. (3 mm) gap
between the actuator arm (29) and the fluid packing
rod nut (E), which allows the atomizing air to actuate
before the fluid. See FIGURE 27.
3. Tighten the adjustment nut (30) against the actuator
arm (29). Check that the 0.125 in. (3 mm) gap has
been maintained. In addition, there should be 3-4
mm of electrode needle travel when the gun is triggered. Adjust the jam nut position to obtain these
dimensions.

29
TI1567A

34b

Fig. 27. Actuator Arm Adjustment
4. Test gun resistance, page 26.

309297L

Repair

Barrel Removal

6. Hold the gun body (32) with one hand and pull the
barrel (9) straight off the body. See FIGURE 28.

1. Prepare the gun for service, page 32.
2. Remove the air cap, page 34. Remove the gun
shroud (2).

3. Carefully loosen the fluid fitting nut (20). Pull the
tube (19) out of the fitting (23). Make sure both ferrules (21, 22) and the nut stay with the tube.

4. Remove the jam nut (28) and actuator arm (29).
See page 38.

5. Loosen the three screws (10, 33). See FIGURE 28.

CAUTION
TI1563A

To avoid damaging the power supply (12), pull the
gun barrel (9) straight away from the gun body (32). If
necessary, gently move the gun barrel from side to
side to free it from the gun body.

Fig. 28. Barrel Removal

32
9

TI1709A

30
19

20 23

Fig. 29. Disconnect Fluid Tube

309297L

Repair

Barrel Installation

4. Assemble the fluid tube (19) into the fluid fitting (23).
Ensure that the ferrules (21, 22) are in place.
Tighten the nut (20).

1. Be sure the gasket (11) and grounding spring (51)
are in place. Make sure the air holes are aligned
properly. Replace if damaged. See FIGURE 30.

5. Install and adjust the actuator arm (29) and jam nut
(28). See page 39.

2. Place the barrel (9) over the power supply (12) and
onto the gun body (32).

6. Test gun resistance, page 26.
7. Install the gun shroud (2) and air cap, page 34.

3. Tighten the three screws (10, 33) oppositely and
evenly (about a half turn past snug).

8. Install the gun onto the manifold and bracket. See
page 33.

CAUTION
Do not over-tighten the screws (10, 33).

12
11
10
TI1569A

9
23
20
19
29
51

Fig. 30. Barrel Installation

309297L

Repair

Power Supply Removal and
Replacement

4. Disconnect the 3-wire connector (GG) from the
power supply. Slide the alternator up and off the
power supply. Inspect the power supply and alternator for damage. Disconnect the 6-pin flexible circuit
(39) from the power supply.

•

Inspect the gun body power supply cavity for dirt or
moisture. Clean with a clean, dry rag.

•

Do not expose gasket (11) to solvents.

5. Check the power supply resistance, page 27.
Replace if necessary.
Before installing the power supply, make sure the
o-rings (12a, 13a), spring (12b), and pads (13e) are in
place.

1. Prepare gun for service, page 32.
2. Remove the barrel (9), page 40.

6. Connect the 6-pin flexible circuit (39) to the power
supply.
7. Connect the 3-wire connector (GG). Slide the alternator (13) down onto the power supply (12).

CAUTION
Be careful when handling the power supply (12) to
avoid damaging it.

8. Lubricate the alternator o-ring (13a) with non-silicone grease, Part No. 111265. Do not over-lubricate.
9. Lubricate the power supply o-ring (12a) with dielectric grease.

3. Grasp the power supply (12) with your hand. With a
gentle side to side motion, free the power supply/alternator assembly from the gun body (32),
then carefully pull it straight out. Disconnect the flexible circuit (39) from the socket at the top of the
body (32). See FIGURE 31.

10. Insert the power supply/alternator assembly in the
gun body (32). Make sure the ground strips make
contact with the body. Connect the flexible circuit
(39) to the socket at the top of the body. Push the
6-pin connector into the socket to ensure it is properly connected.
11. Install the barrel (9), page 41.
12. Test gun resistance, page 26.

309297L

Repair

39
12

12b
11

12a
32

13a
13
13e

TI1568A

Fig. 31. Power Supply

Turbine Alternator Removal
and Replacement
Replace turbine alternator bearings after 2000 hours of
operation. Order Part No. 223688 Bearing Kit.

4. Measure resistance between the two outer terminals of the 3-wire connector (GG); it should be
2.5-3.5 ohms. If outside this range, replace the alternator coil.
5. Follow the bearing replacement procedure in the
bearing kit manual 308034.

1. Prepare gun for service, page 32.
6. Install the alternator on the power supply, page 42.
2. Remove the power supply/alternator assembly,
page 42.

7. Install the power supply/alternator assembly, page
42.

3. Disconnect the alternator from the power supply,
page 42.

309297L

Repair

Notes

309297L

Parts

Parts
Part No. 244589 PRO Auto Xs Electrostatic Gun, Series B, for standard coatings

7
4b

4a
4
2

3
1a
39

13a

12b

12a

Ref. No. 13: Alternator Detail

13e

13b

9
19
51

13b
TI1481a

22
40

34a
34d
34c
17 18

13a

13e

34f
34e

13d 13c

26
34b
33
34g

29
30

TI1558A

19 (Ref)

309297L

ti1601a

8g
8d

24
8c

8f
20

21 22

Ref. No. 8: Packing Rod Detail

Parts

Part No. 244589 PRO Auto Xs Electrostatic Gun, Series B, for standard coatings
Ref.
No.

Part No.

Description

244555

TURBINE, alternator; includes
13a-13e

13a*† 110073

. O-RING; fluoroelastomer

13b

223688

. BEARING KIT; includes front
and rear bearings and fan

13c

244577

. COIL

13d

111745

. RING, retaining

13e

198821

. PAD, pressure

Qty

Ref.
No.

Part No.

Description

244950

RING, retaining, air cap; includes
1a

1a*†

198307

. U-CUP

245312

SHROUD

24A438

AIR CAP

197266

NOZZLE; 1.5 mm orifice; includes
4a and 4b

111261

. O-RING, conductive

14*

111316

O-RING

111507

. O-RING; fluoroelastomer

15*

102982

O-RING

198486

CONNECTOR, tube, fiber optic;
pictured on page 51 (unassembled)

189757

FITTING, fluid

112642

SPACER

111370

CONNECTOR, elbow; includes
items 20, 21, 22

198043

TUBE, fluid

112644

NUT

21*

111285

FERRULE, back

22*

111286

FERRULE, front

189549

FITTING, fluid, quick-disconnect

24*

111450

O-RING

185111

SPRING, compression

189367

CAP, exhaust

185122

MUFFLER

101324

NUT, jam, hex

197919

ARM, actuator

102025

NUT, hex

112689

SCREW, button-hd; 1/4-20 x 3/4
in. (19 mm)

245662

BODY, gun

Qty

276697

NEEDLE, electrode

244521

ROD, packing; includes 8a-8h

8a*

111316

. O-RING; fluoroelastomer

8b*

116905

. SEAL

8c*

178409

. SPREADER, packing; uhmwpe

8d*

178763

. PACKING, rod; acetal

197641

. NUT, packing

185495

. HOUSING, packing

8g*

186069

. SPACER, packing; acetal

244696

. ROD, packing

244394

BARREL, gun

197518

SCREW; socket-hd; 10-24 x 3/4
in. (19 mm)

11*†

197517

GASKET, barrel

244541

POWER SUPPLY, 85 kV; includes
12a-12b

12a*† 103337

. O-RING; fluoroelastomer

12b

. SPRING, compression

197624

309297L

Parts

Ref.
No.

Part No.

Description

116575

SCREW, cap, socket-hd; 10-24; 3
in. (76 mm)

244702

PISTON; includes 34a-34g

34a

197920

. PISTON

34b

189754

. ROD, piston

34c

189355

. STEM, piston

34d*† 189752

. PACKING, u-cup

34e*† 111504

. O-RING

34f*†

112319

. O-RING

34g*† 111508

. O-RING

MANIFOLD; see separate parts
list on page 51

244586

Qty

245265

CIRCUIT, flexible

276741

MULTI-TOOL

309297L

Ref.
No.

Part No.

Description

107460

WRENCH, ball end; 4 mm

179791

TAG, warning (not shown);
replacement available at no cost

180060

SIGN, warning (not shown);
replacement available at no cost

239945

COVER, gun; box of 10 (not
shown)

197624

SPRING, grounding

Qty

* Recommended spare parts. Keep on hand to reduce
downtime.
† Included in repair kit 15D592.
Replacement Warning labels, signs, tags, and cards are
available at no cost.

Parts

Part No. 244590 PRO Auto Xs Electrostatic Gun, Series B, for high conductivity coatings

7
4b

4a
4
2
3
1a

13a

11
12a

12b

Ref. No. 13: Alternator Detail

13e

9
19

13a

13b

35
13b
TI1481a

51
34a
19b
19a
19 (Ref)

40
13e

34d
19d

25
27

19c

34c

34f
34e

13d 13c

26
29
34g

34b
33

TI1586A

19 (Ref)

ti1601a

8g
8d

24
8c

8f
20

21 22

Ref. No. 8: Packing Rod Detail

309297L

Parts

Part No. 244590 PRO Auto Xs Electrostatic Gun, Series B, for high conductivity coatings

Ref.
No.

Part No.

Description

244950

RING, retaining, air cap; includes
1a

1a*†

198307

. U-CUP

245312

SHROUD

24A438

AIR CAP

197266

NOZZLE; 1.5 mm orifice; includes
4a and 4b

111261

. O-RING, conductive

111507

. O-RING; fluoroelastomer

198486

CONNECTOR, tube, fiber optic;
pictured on page 51 (unassembled)

Qty

276697

NEEDLE, electrode

244521

ROD, packing; includes 8a-8h

8a*

111316

. O-RING; fluoroelastomer

8b*

116905

. SEAL

8c*

178763

. SPREADER, packing; uhmwpe

8d*

178409

. PACKING, rod; acetal

197641

. NUT, packing

185495

. HOUSING, packing

8g*

186069

. SPACER, packing; acetal

244696

. ROD, packing

244394

BARREL, gun

197518

SCREW; socket-hd; 10-24 x 3/4
in. (19 mm)

11*†

197517

GASKET, barrel

244541

POWER SUPPLY, 85 kV; includes
12a-12b

12a*† 103337

. O-RING; fluoroelastomer

12b

. SPRING, compression

197624

309297L

Ref.
No.

Part No.

Description

244555

TURBINE, alternator; includes
13a-13e

13a*† 110073

. O-RING; fluoroelastomer

13b

223688

. BEARING KIT; includes front
and rear bearings and fan

13c

244577

. COIL

13d

111745

. RING, retaining

13e

198821

. PAD, pressure

237297

TUBE, fluid; coiled; includes
19a-19d

19a*

102982

. O-RING

19b*

111450

. O-RING

19c*

103337

. O-RING

19d

186818

. FITTING

112644

NUT

21*

111285

FERRULE, back

22*

111286

FERRULE, front

189549

FITTING, fluid, quick-disconnect

24*

111450

O-RING

185111

SPRING, compression

189367

CAP, exhaust

185122

MUFFLER

101324

NUT, jam, hex

197919

ARM, actuator

102025

NUT, hex

112689

SCREW, button-hd; 1/4-20 x 3/4
in. (19 mm)

245662

BODY, gun

116575

SCREW, cap, socket-hd; 10-24; 3
in. (76 mm)

Qty

Continued on page 50.

Parts

Ref.
No.

Part No.

Description

107460

WRENCH, ball end; 4 mm

. PISTON

179791

189754

. ROD, piston

TAG, warning (not shown);
replacement available at no cost

189355

. STEM, piston

180060

SIGN, warning (not shown);
replacement available at no cost

34d*† 189752

. PACKING, u-cup

239945

34e*† 111504

. O-RING

COVER, gun; box of 10 (not
shown)

34f*†

112319

. O-RING

197624

SPRING, grounding

34g*† 111508

. O-RING

244586

MANIFOLD; see separate parts
list on page 51

245265

CIRCUIT, flexible

276741

MULTI-TOOL

Ref.
No.

Part No.

Description

244702

PISTON; includes 34a-34g

34a

197920

34b
34c

Qty

* Recommended spare parts. Keep on hand to reduce
downtime.
† Included in repair kit 15D592.
Replacement Warning labels, signs, tags, and cards are
available at no cost.

309297L

Parts

Part No. 244586 Manifold, Series A
5 (see pages 46 or 49)
101 (Ref)

106 (Ref)

112

101
117

116
116a

120

109
119

114

115

102
108

104

106
TI1578A

113

103

105

118
111

TI1582A

107

Ref.
No.

Part No.

Description

101

198216

MANIFOLD

102

189581

BRACKET, reciprocator

103

110465

SCREW, set

104

112689

SCREW, button-hd

105

112640

SPRING, compression

106

197518

SCREW; socket-hd; 10-24 x 3/4
in. (19 mm)

Qty

107

111157

FITTING, tube, exhaust

108

186845

FITTING, turbine, air

109

110078

FITTING, tube, air

110

112646

PLUG

111

189551

FITTING, quick-disconnect, fluid

112†

197925

GASKET, manifold

113

108290

SCREW, machine

309297L

110

Ref.
No.

Part No.

Description

114

189365

CAP, kV, HI/LO

115

198764

RESTRICTOR

116

244772

PISTON; includes 116a

116a† 112085

. O-RING (1 per piston)

117

114263

FITTING, tube, air

118

111450

O-RING

119

116621

SPRING, compression

120

112645

PLUG

Qty

† Included in repair kit 15D592.

Accessories

Accessories
Air Line Accessories
AirFlex™ Flexible Grounded Air Hose

100 psi (7 bar, 0.7 MPa) Maximum Working Pressure

Air Line Shutoff Valve

150 psi (10 bar, 1.0 MPa) Maximum Working Pressure
For turning air to gun on or off.
224754

1/4 npsm(m) x 1/4 npsm(f) left-hand thread.

0.315 in. (8 mm) ID; 1/4 npsm(f) x 1/4 npsm(f) left-hand
thread
244963
6 ft (1.8 m)
244964
15 ft (4.6 m)
244965
25 ft (7.6 m)
244966
36 ft (11 m)
244967
50 ft (15 m)
244968
75 ft (23 m)
244969
100 ft (30.5 m)
Standard Grounded Air Hose (Grey)

100 psi (7 bar, 0.7 MPa) Maximum Working Pressure
0.315 in. (8 mm) ID; 1/4 npsm(f) x 1/4 npsm(f) left-hand
thread
223068
6 ft (1.8 m)
223069
15 ft (4.6 m)
223070
25 ft (7.6 m)
223071
36 ft (11 m)
223072
50 ft (15 m)
223073
75 ft (23 m)
223074
100 ft (30.5 m)
Bleed-Type Master Air Valve

300 psi (21 bar, 2.1 MPa) Maximum Working Pressure
Relieves air trapped in the air line between this valve
and the pump air motor when closed.

Fluid Line Accessories
Fluid Hose

225 psi (14 bar, 1.4 MPa) Maximum Working Pressure
FM Approved; nylon; 3/8 npsm(fbe)
215637
1/4 in. (6 mm) ID x 25 ft (7.6 m)
215638
1/4 in. (6 mm) ID x 50 ft (15.2 m)
Fluid Shutoff/Drain Valve

500 psi (35 bar, 3.5 MPa) Maximum Working Pressure
For turning fluid on or off to the gun and for relieving
fluid line pressure at the pump.
208630

1/2 npt(m) x 3/8 npt(f); carbon steel and
PTFE; for non-corrosive fluids
Drain Valve

300 psi (21 bar, 2.1 MPa) Maximum Working Pressure
236853

Mounts directly to gun manifold for faster
flushing and color changes. Must be used
with 233676 Fluid Recirculation Kit.
Fluid Recirculation Kit
233676

107141

3/4 npt

Converts standard gun to a recirculating
gun. Requires 236853 Drain Valve.
Gun Mounted Fluid Regulator

100 psi (7 bar, 0.7 MPa) Maximum Working Pressure
236854

Air-piloted fluid regulator mounts directly to
gun manifold for precise fluid control.

309297L

Accessories

Miscellaneous Accessories
Ground Wire and Clamp
222011

For grounding pump and other components
and equipment in the spray area.
12 gauge, 25 ft (7.6 m).
Megohmmeter
241079

500 Volt output; 0.01-2000 megohms.
Not for use in hazardous areas.
Paint Resistance Meter
722886

Use with 722860 Paint Probe to measure
resistance of paint.
Not for use in hazardous areas.
Paint Probe
722860

Use with 722886 Paint Resistance Meter to
measure resistance of paint.
Not for use in hazardous areas.
Safety Warning Signs
180060

English Warning Sign. FM Approved. Available at no charge from Graco.
ES Display Module
224117

Receives fiber optic transmission from the
PRO Auto Xs gun and displays the gun’s
output voltage and current. Mounts in a
standard 19 in. DIN rack. See 308265.
Fiber Optic Y Cables

Fiber Optic Cables
See item V in FIGURE 3 on page 9. Connect gun manifold and remote voltage display, bulkhead connector
and remote display, or bulkhead connector and gun
manifold. See 308265.
224672
25 ft (7.6 m)
224674
50 ft (15 m)
224676
100 ft (30.5 m)
Power Supply
235301

Supplies low voltage DC power to 224117
Display Module. See 308265.
Remote Voltage Display
189762

Battery-operated meter displays actual
spraying voltage. remote mount outside
hazardous area. Connects to gun via fiber
optic cable. See 308265.
Remote Voltage Display Kits
Include 189762 Remote Voltage Display and fiber optic
cable.
236917
25 ft (7.6 m)
236919
50 ft (15 m)
236921
100 ft (30.5 m)
Bulkhead Connector
189870

For connecting two fiber optic cables.

See item T in FIGURE 3 on page 9. For use with 224117
Display Module only. Connect gun manifold and display
module, or bulkhead connector and display module. See
308265.
224682
224684
224686

309297L

25 ft (7.6 m)
50 ft (15 m)
100 ft (30.5 m)

Accessories

Gun Accessories

Gun Valve Lubricant
111265

Round Pattern Kits
Consists of fluid tip, diffuser and air cap.
245217
4-6 in. (102-152 mm) diameter
245219
8-10 in. (203-254 mm) diameter
Dielectric Grease
116553

1 oz (28 g) tube of dielectric grease for the
power supply o-ring (12a), some packing
rod parts (8), and certain fluid fittings.

4 oz (113 g) tube of sanitary (non-silicone)
lubricant for fluid seals and wear areas.
Alternator Bearing Kit
223688
To repair the turbine alternator.
Cleaning Brush
105749
For cleaning air cap and fluid nozzle.
HC Conversion Kit
245324

Converts PRO Auto Xs standard coating
gun (Part No. 244589) to high conductivity
gun (244590). The kit is for use with fluids
with low resistivity values. See page 16.

309297L

Technical Data

Technical Data
Category
Maximum Working Fluid Pressure
Maximum Working Air Pressure
Minimum Air Pressure at Gun Inlet
Maximum Fluid Operating Temperature
Paint Resistivity Range
Short Circuit Current Output
Voltage Output
Sound Power (measured per ISO Standard 9216)
Sound Pressure (measured 1 m from gun)
Turbine air inlet fitting, left-hand thread
Atomizing air inlet fitting
Fan air inlet fitting
Cylinder air inlet fitting
Hi/Lo voltage selector air inlet fittings
Fluid inlet fitting
Gun Weight
Gun Length
Wetted Parts

Data
100 psi (0.7 MPa, 7 bar)
100 psi (0.7 MPa, 7 bar)
40 psi (0.28 MPa, 2.8 bar)
120°F (48°C)
3 megohm/cm to infinity
125 microamperes
40-85 kV
at 40 psi (0.28 MPa, 2.8 bar): 90.4 dB(A)
at 100 psi (0.7 MPa, 7 bar): 105.4 dB(A)
at 40 psi (0.28 MPa, 2.8 bar): 87 dB(A)
at 100 psi (0.7 MPa, 7 bar): 99 dB(A)
1/4 npsm(m)
3/8 in. OD nylon tube
3/8 in. OD nylon tube
5/32 in. OD nylon tube
5/32 in. OD nylon tube
1/4-18 npsm(m)
3.52 lb (1.6 kg)
12.25 in. (31.1 cm)
Stainless Steel; Nylon, Acetal, Ultra-High Molecular
Weight Polyethylene, Fluoroelastomer, PEEK, Tungsten
Wire, Polyethylene

Loctite® is a registered trademark of the Loctite Corporation.

309297L

Graco Standard Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of
sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period
of twelve months or two thousand hours of operation from the date of sale, repair or replace any part of the equipment determined by Graco to be
defective. However, any deficiency in the gun barrel, gun body, manifold, mounting bracket, internal power supply, and alternator (excluding
turbine bearings) will be repaired or replaced for thirty-six months or six thousand hours of operation from the date of sale. 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 general wear and tear, or 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 of Graco equipment with
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.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco's sole obligation and buyer's sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection with
accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured by Graco (such as
electric motors, 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.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés à la suite
de ou en rapport, directement ou indirectement, avec les procedures concernées.

Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 309297

Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2002, Graco Inc. is registered to ISO 9001
www.graco.com
Rev L, 12/2014

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : Yes
Page Mode                       : UseOutlines
XMP Toolkit                     : 3.1-701
Marked                          : True
Producer                        : Acrobat Distiller 7.0.5 (Windows)
Copyright                       : 2002, Rev. L,  12/2014
Job Ref                         : Z092459
Web Statement                   : 309297L - PRO Auto Xs, Automatic Electrostatic Air Spray Gun, Instructions/Parts, English
Keywords                        :  PRO Auto Xs, Automatic Electrostatic Air Spray Gun:  MM 309297, 309297, 309297L, 309297EN-L, 309297L EN
Modify Date                     : 2015:01:16 16:00:03-06:00
Creator Tool                    : FrameMaker 11.0
Create Date                     : 2000:09:21 08:06:07Z
Metadata Date                   : 2015:01:16 16:00:03-06:00
Format                          : application/pdf
Description                     : 309297 - PRO Auto Xs, Automatic Electrostatic Air Spray Gun, 244589, 244590. MM309297
Title                           : 309297L - PRO Auto Xs, Automatic Electrostatic Air Spray Gun, Instructions/Parts, English
Creator                         : Michelle Oliveira
Document ID                     : uuid:b95330e8-20a1-4905-b407-ad71f8020ee9
Instance ID                     : uuid:52878bcf-55bf-4107-942a-bae63a5f3500
Page Count                      : 56
Subject                         : 309297 - PRO Auto Xs, Automatic Electrostatic Air Spray Gun, 244589, 244590. MM309297
Author                          : Michelle Oliveira

EXIF Metadata provided by EXIF.tools

Graco 309297L Pro Auto Xs Users Manual Xs, Automatic Electrostatic Air Spray Gun, Instructions/Parts, English

Navigation menu

Versions of this User Manual:

Views

Navigation