Graco 249377, 249369, 288217 User Manual
Instructions - Parts
Automatic XT Spray Guns
311051F
Airspray, HVLP, and Compliant guns for spraying paints and coatings.
See page 3 for model information.
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
ENG
TI8085b
Part No. 249369 Airspray Gun shown mounted on
Part No. 288217 Manifold.
TI8169b
Part No. 249377 Airspray Gun with fluid control
shown mounted on Part No. 288223 Manifold.
II 2 G c T6
Related Manuals
Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Selection Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Proper Needle/Nozzle Selection . . . . . . . . . . . . . 8
Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Air Caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ventilate Spray Booth . . . . . . . . . . . . . . . . . . . . 10
Configure Gun and Manifold . . . . . . . . . . . . . . . 10
Install Air Fittings . . . . . . . . . . . . . . . . . . . . . . . . 11
Ground System . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mount Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connect Air Line . . . . . . . . . . . . . . . . . . . . . . . . 13
Connect Fluid Hose . . . . . . . . . . . . . . . . . . . . . 13
Flush Spray Gun . . . . . . . . . . . . . . . . . . . . . . . . 14
Position Air Cap . . . . . . . . . . . . . . . . . . . . . . . . 14
Adjust Spray Pattern . . . . . . . . . . . . . . . . . . . . . 15
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pressure Relief Procedure . . . . . . . . . . . . . . . . 17
Apply Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Daily Gun Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
General System Maintenance . . . . . . . . . . . . . . 19
Clean and Flush Gun . . . . . . . . . . . . . . . . . . . . . 19
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
General Troubleshooting . . . . . . . . . . . . . . . . . . 20
Spray Pattern Troubleshooting . . . . . . . . . . . . . 22
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Replace Fluid Packings and Air Seals . . . . . . . . 23
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Mounting Hole Layout . . . . . . . . . . . . . . . . . . . . . . 35
Mounting Hole Layout . . . . . . . . . . . . . . . . . . . . . . 36
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 38
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 38
Related Manuals
The Automatic XT Spray Guns manual is available in the following languages. See the following chart for specific language and part number.
Manual Language
Manual Language
311051
311637
311638
311639
311640
311641
311642
311643
English
Chinese
Danish
Dutch
Finnish
French
German
Italian
311644
311645
311646
311647
311648
311649
311650
Japanese
Korean
Norwegian
Polish
Russian
Spanish
Swedish
2 311051F
Models
A manifold is required for each gun to be installed.
Refer to the Parts section for manifold information.
Orifice Size
in. (mm) HVLP Compliant Airspray
.030 (0.75) 249388 249407 249369
.042 (1.0) 249389 249408 249370
.055 (1.4) 249390 249409 249371
.070 (1.8) 249391 249410 249372
*.042 (1.0) Hardened SST 249394 288049 249375
*.055 (1.4) Hardened SST 249395 288050 249376
.030 (0.75) with Fluid Control Knob 249396 249411 249377
.042 (1.0) with Fluid Control Knob 249397 249412 249378
.055 (1.4) with Fluid Control Knob 249398 249413 249379
.070 (1.8) with Fluid Control Knob 249399 249414 249380
Models
* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK needle tip.
311051F 3
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
4 311051F
Warnings
WARNING
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDS’s to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
311051F 5
Selection Charts
Selection Charts
TERMS:
Light Fluid: Up to 18 seconds with No. 2 Zahn cup (20
centipoise)
Heavy Fluid:Greater than 28 seconds with No. 2 Zahn
cup (greater than 64 centipoise) -- 2.8 Volatile Organic
Compounds, High-solid Polyurethanes, Heavy Water-
Medium Fluid:19 to 28 seconds with No. 2 Zahn cup
borne Enamels
(20-64 centipoise)
HVLP Spray Gun Assemblies
Includes:
Gun Assy.
Part No.
249388 15F829 288134 .030 (0.75) light 4-10 (0.12-0.30)
249389 15F830 288134 .042 (1.0) light-medium 8-14 (0.24-0.42)
249390 15F831 288134 .055 (1.4) medium 12-18 (0.36-0.54)
249391 15F832 288134 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
249394* 15F835* 288134 .042 (1.0) light-medium 8-14 (0.24-0.42)
249395* 15F836* 288134 .055 (1.4) medium 12-18 (0.36-0.54)
249396† 15F829 288134 .030 (0.75) light 4-10 (0.12-0.30)
249397† 15F830 288134 .042 (1.0) light-medium 8-14 (0.24-0.42)
249398† 15F831 288134 .055 (1.4) medium 12-18 (0.36-0.54)
249399† 15F832 288134 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
Needle/
Nozzle Kit
Part No.
321 Air Cap
Reorder
Part No.
Orifice Size
in. (mm)
Viscosity Flow
Material Usage
oz./min. (l/min.)
* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK needle tip.
† With Fluid Control Knob (for fine adjustment of fluid flow).
6 311051F
Compliant Spray Gun Assemblies
Selection Charts
Includes:
Gun Assy.
Part No.
249407 15F829 288132 .030 (0.75) light 4-10 (0.12-0.30)
249408 15F830 288132 .042 (1.0) light-medium 8-14 (0.24-0.42)
249409 15F831 288132 .055 (1.4) medium 12-18 (0.36-0.54)
249410 15F832 288132 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
288049* 15F835* 288132 .042 (1.0) light-medium 8-14 (0.24-0.42)
288050* 15F836* 288132 .055 (1.4) medium 12-18 (0.36-0.54)
249411† 15F829 288132 .030 (0.75) light 4-10 (0.12-0.30)
249412† 15F830 288132 .042 (1.0) light-medium 8-14 (0.24-0.42)
249413 15F831 288132 .055 (1.4) medium 12-18 (0.36-0.54)
249414† 15F832 288132 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
Needle/
Nozzle Kit
Part No.
006 Air Cap
Reorder
Part No.
Orifice Size
in. (mm)
Viscosity Flow
Material Usage
oz./min. (l/min.)
* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK needle tip.
† With Fluid Control Knob (for fine adjustment of fluid flow).
Airspray Gun Assemblies
Includes:
Gun Assy.
Part No.
249369 15F829 288133 .030 (0.75) light 4-10 (0.12-0.30)
249370 15F830 288133 .042 (1.0) light-medium 8-14 (0.24-0.42)
249371 15F831 288133 .055 (1.4) medium 12-18 (0.36-0.54)
249372 15F832 288133 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
249375* 15F835* 288133 .042 (1.0) light-medium 8-14 (0.24-0.42)
249376* 15F836* 288133 .055 (1.4) medium 12-18 (0.36-0.54)
249377† 15F829 288133 .030 (0.75) light 4-10 (0.12-0.30)
249378† 15F830 288133 .042 (1.0) light-medium 8-14 (0.24-0.42)
249379† 15F831 288133 .055 (1.4) medium 12-18 (0.36-0.54)
249380† 15F832 288133 .070 (1.8) medium-heavy 16-20 (0.48-0.60)
Needle/
Nozzle Kit
Part No.
315 Air Cap
Reorder
Part No.
Orifice Size
in. (mm)
Viscosity Flow
Material Usage
oz./min. (l/min.)
* Hardened SST needle tip/nozzle (not recommended for thin fluids). All other models have PEEK needle tip.
† With Fluid Control Knob (for fine adjustment of fluid flow).
311051F 7
Selection Charts
Proper Needle/Nozzle Selection
The spray gun's needle/nozzle kits range in size to provide different fluid flow rates.
As a general guideline, use the fluid nozzle that will give
the required flow with the needle fully triggered at a fluid
pressure of 5-20 psi (0.035 MPa, 3.5 bar - 0.14 MPa. 14
bar)
For low flow rates or light viscosity fluid, select the
smaller nozzle sizes.
For high flow rates or high viscosity fluid, select the
larger nozzle sizes.
For thicker, abrasive fluids, hardened SST needle tips
and nozzles are recommended.
Air Caps
Gun Selection
HVLP Guns
An HVLP gun is a high transfer efficiency gun that limits
the air pressure at the air cap to 10 psi (0.07 MPa, 0.7
bar) maximum. In some areas, an HVLP gun is required
for compliance with environmental standards.
Compliant Guns
A compliant gun is a high transfer efficiency gun that has
been tested to have a transfer efficiency greater than or
equal to HVLP guns. In addition, the compliant air cap
consumes much less air than the HVLP air cap.
The Graco compliant guns have no restrictions on air
cap pressures, but the gun inlet pressure must remain
under 30 psi (0.21 MPa, 2.1 bar) to remain in compliance.
Airspray Guns
An airspray gun has excellent atomization and high production rates typically with some reduction in transfer
efficiency.
The chart below lists the air caps available for pressure
feed, gravity, and siphon feed guns.
Typical Pattern
Width*
Spray Gun Air Cap ID
HVLP 321A 15 (381) Pressure Feed
HVLP 322 15 (381) Pressure Feed .086 (2.2) 234754†
HVLP 323 15 (381) Pressure Feed .110 (2.8) 234755†
Compliant 006A 11 (279) All Models
Airspray 315A 13 (330) Pressure Feed
Airspray 318 10 (254) Pressure Feed .086 (2.2) 234760†
Airspray 319 10 (254) Pressure Feed .110 (2.8) 234761†
Airspray 313 10 (254) Pressure Feed
Airspray 316 10 (254) Pressure Feed
* Measured with gun nozzle 8 in. (203 mm) from target surface.
† Caps do not have alignment pin feature.
in. (mm) Gun Feed
Nozzle Orifice
in. (mm) Part Number
.030-.070
(.75-1.8) 288134
.030-.070
(.75-1.8) 288132
.030-.070
(.75-1.8) 288133
.030-.070
(.75-1.8) 234756†
.030-.070
(.75-1.8) 234758†
8 311051F
Air Flow
All tests were completed with the 0.055 in. (1.4
mm) nozzle and standard air cap for each gun
model.
12
11
10
9
8
7
6
5
4
3
Aircap Pressure in psi
2
1
0
0 5 10 15 20 25 30 35 40 45 50
Manifold Inlet Pressure psi
Air Flow
HVLP Aircap Pressures
HVLP Atomizat ion Air
Press ure at Cap
HVLP Fan Air Pressure at
Cap
F
IG. 1: HVLP Gun Air Cap Pressure
20
18
16
14
12
10
8
6
Air Flow in SCFM
4
2
0
0102030405060
Automatic Gun Air Consumption
Airspray Atom. Flow
HVLP Atom. Flow
Compliant Atom. Flow
Airspray Fan Flow
HVLP Fan Flow
Compliant Fan Air Flow
Manifold Inlet Pressure psi
IG. 2: Automatic Gun Air Consumption
F
311051F 9
Installation
Installation
The Automatic XT spray guns were designed to produce
the highest quality finish with today's fluids as well as
the low V.O.C. (volatile organic compound) fluids of
tomorrow.
This spray gun can spray most coatings or finishes currently being used for automotive, industrial, aerospace,
marine, wood, plastic and architectural applications,
while easily operating from paint delivery systems, such
as pressure pots or remote pumps for production line
operation.
The air regulator must have a minimum air flow capacity
of 30 scfm at 100 psi (0.7 MPa, 7 bar) air pressure.
Ventilate Spray Booth
Check and follow all National, State, and Local
codes regarding air exhaust velocity requirements.
Non-circulating System
1. See FIG. 3. See Apply anti-seize lubricant 222955 to
the threads and mating faces of the manifold (101),
plug (109), and elbow (107), supplied unassembled.
2. Install an elbow (107) in one fluid port of the manifold (101), and a plug (109) in the other port.
3. Install the internal plug (19) in the gun fluid port on
the same side as the manifold plug.
4. Connect the fluid supply line to the fluid inlet elbow
(107).
5. Install the gun on the manifold, using the four
screws (13). Start the threads of all four screws.
Tighten the front two screws first, and then tighten
the back two. Torque all four screws evenly to 65
in-lb (7.3 N•m).
1
Remove when used in circulating systems.
2
Replace with elbow (107) when used in circulating systems.
Check and follow all local safety and fire codes.
Configure Gun and Manifold
The gun is supplied with an internal fluid plug and seals
(19, 20, 21). To use the gun in a circulating system,
remove the internal plug. In a non-circulating system,
leave the plug in place to minimize flush time.
Circulating System
1. Apply anti-seize lubricant to the threads and mating
faces of the manifold (101) and the elbows (107),
supplied unassembled.
2. Install the elbows (107) in both fluid ports of the
manifold (101).
3. Connect the fluid supply line to one elbow and the
fluid return line to the other. The manifold fluid ports
are reversible.
4. Install the gun on the manifold, using the four
screws (13). Start the threads of all four screws.
Tighten the front two screws first, and then tighten
the back two. Torque all four screws evenly to 65
in-lb (7.3 N•m).
21
20
19
1
109
2
FIG. 3: Non-Circulating Setup Shown (cutaway view)
101
107
TI8587b
10 311051F
Installation
Install Air Fittings
1. Install the supplied 1/4 in. tube fitting into the cylinder (CYL) air port.
2. Install 3/8 in. tube fittings into the atomization
(ATOM) air port and the fan (FAN) air port.
CYL
ATOM
TI8211a
F
IG. 4: Air Fittings
FAN
Ground System
Ground Fluid Supply Container
Ground the fluid supply container according to local
code.
Ground Object Being Sprayed
Ground the object that is being sprayed according to
local code.
Ground Solvent Pails
Ground all solvent pails that are used when flushing
according to local code. Use only metal pails, which are
conductive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which interrupts
the grounding continuity.
The following grounding instructions are minimum
requirements for a system. Your system may include
other equipment or objects that must be grounded.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Your
system must be connected to a true earth ground.
Ground Pump/Fluid Supply
Ground the pump by connecting a ground wire and
clamp between the fluid supply and a true earth ground
as instructed in your separate pump instruction manual.
Ground Air Compressors and Hydraulic
Power Supplies
Ground the air compressors and hydraulic power supplies according to the manufacturer recommendations.
Ground Spray Gun
Ground the spray gun by mounting the manifold to a
properly grounded reciprocator, robot, or stationary
mount. Check the electrical resistance between the
manifold and a true earth ground. The resistance must
be less than 1 megohm.
311051F 11
Installation
Mount Gun
Reciprocating Arm Rod Mount
To mount the gun on a reciprocating arm rod [0.5 in. (13
mm) diameter maximum]:
1. Insert the mounting bar (A) through the hole in the
manifold as shown in F
Use the 1/8 in. alignment pin (P) to assist in orienting the gun.
2. Secure the gun to the bar by tightening the mounting screw (B).
B
P
IG. 5.
2. Secure the gun to the support with two M5 x 0.8
capscrews (C). The screws must be long enough to
engage the threaded holes in the gun manifold to a
depth of 1/4 in. (6 mm).
C
TI8095 a
F
IG. 6: Stationary Support Mount
Retrofit Adapter Plate
The retrofit adapter plate enables the manifold to be
attached to a variety of bolt patterns.
A
IG. 5: Reciprocating Arm Mount
F
TI8094a
Stationary Support
To mount the gun on a stationary support (refer to FIG. 6
and Mounting Hole Layout, page 35):
1. Align the manifold with the alignment pins. Locate
alignment pins and holes per the Mounting Hole
Layout illustration, page 35.
To mount the gun using the retrofit adapter plate (kit
288197):
1. Mount adapter plate to manifold using the three
screws provided with the kit (F
IG. 7).
2. Bolt plate to mounting surface using four M5 x 0.8
capscrews. Refer to the Mounting Hole Layout,
page 36.
TI8180a
F
IG. 7: Retrofit Adapter Plate Mount
12 311051F
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