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Instructions - Parts List
AA Series Spray Gun
311001C
For air-assisted spraying and finishing of paints and coatings.
Important Safety Instructions:
Read all warnings and instructions in this manual. Save these instructions.
See page 2 for List of Models and Table of Contents.
Model G15
TI6553A
Model G40
TI6844A
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2005, Graco Inc. is registered to I.S. EN ISO 9001
Model G40 w/RAC tip
II 2 G
TI7204B
2
Models
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . 6
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Air Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fluid Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Flush Before Using Equipment . . . . . . . . . . . . . . 8
Select a Spray Tip and Air Cap . . . . . . . . . . . . . . 8
Install a Spray Tip . . . . . . . . . . . . . . . . . . . . . . . . 8
Position the Air Cap . . . . . . . . . . . . . . . . . . . . . . 8
Air Cap Alignment Pin . . . . . . . . . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure Relief Procedure . . . . . . . . . . . . . . . . 10
Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
How the Air-Assisted Spray Gun Operates . . . . 11
Spray Pattern Adjustment . . . . . . . . . . . . . . . . . 11
HVLP Operation . . . . . . . . . . . . . . . . . . . . . . . . 12
Fluid Application . . . . . . . . . . . . . . . . . . . . . . . . 12
Daily Gun Care, Flushing, and Cleaning . . . . . . . 13
General System Maintenance . . . . . . . . . . . . . . 14
Fluid Filter Maintenance . . . . . . . . . . . . . . . . . . 14
Flushing and Cleaning . . . . . . . . . . . . . . . . . . . 14
®
(RAC) Tip . . . . . . . . . . . . . . 16
Clearing a clogged RAC tip . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
General Troubleshooting . . . . . . . . . . . . . . . . . . 18
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Items Needed for Service . . . . . . . . . . . . . . . . . 20
Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Fan Valve Replacement . . . . . . . . . . . . . . . . . . . 20
Complete Gun Packing Repair . . . . . . . . . . . . . 20
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . 20
Seat Repair . . . . . . . . . . . . . . . . . . . . . . 20
Needle Repair . . . . . . . . . . . . . . . . . . . . 21
Air Valve Repair . . . . . . . . . . . . . . . . . . 22
Fluid Tube Replacement . . . . . . . . . . . 22
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Spray Tip Selection Chart . . . . . . . . . . . . . . . . . . . 30
AAM Fine Finish Spray Tips . . . . . . . . . 30
GG4 Industrial Spray Tips . . . . . . . . . . 30
LTX RAC Spray Tips . . . . . . . . . . . . . . 31
FFT Fine Finish RAC Spray Tips . . . . . 32
WRX WideRAC Spray Tips . . . . . . . . . 32
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 36
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 36
Models
Part
No.
249233
Series
B
Maximum
Working Air
Pressure psi (MPa, bar)
100 (0.7, 7.0)
287926
249242
249246
249238
A
B
A
A
100 (0.7, 7.0)
100 (0.7, 7.0)
100 (0.7, 7.0)
100 (0.7, 7.0)
Maximum
Working Fluid
Pressure psi (MPa, bar) Description
1500 (10.5, 105) G15 Medium Pressure
Air-Assisted Spray Gun, Plastic
Seat, SST Ball
1500 (10.5, 105) G15 Medium Pressure
Air-Assisted Spray Gun, Carbide
Seat and Ball
4000 (2.8, 280) G40 High Pressure Air-Assisted
Spray Gun, Carbide Seat and Ball
4000 (2.8, 280)
4000 (2.8, 280)
G40 High Pressure, High Flow
Air-Assisted Spray Gun, Carbide
Seat and Ball
G40 High Pressure Air-Assisted
Spray Gun, Carbide Seat and Ball,
Reverse-A-Clean
®
(RAC) Tip
Includes:
249596
Air Cap
249596
Air Cap
249180
Air Cap
249180
Air Cap
249478
RAC
Air Cap
311001C
Related Manuals
This manual is available in the following languages:
Manual
311001
311145
311146
311147
311148
311149
311150
311151
311152
311153
311154
311155
311156
311157
311158
Language
English
Chinese
Danish
Dutch
Finnish
French
German
Italian
Japanese
Korean
Norwegian
Polish
Russian
Spanish
Swedish
Related Manuals
311001C 3
4
Warnings
Warnings
The following are general warnings related to the setup, use, grounding, maintenance, and repair of this equipment.
Additional, more specific warnings may be found throughout the body of this manual where applicable. Symbols that appear in the body of the manual refer to these general warnings. When these symbols appear throughout the manual, refer back to these pages for a description of the specific hazard.
WARNING
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 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 fire extinguisher in the work area.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning, checking, or servicing equipment.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer.
• 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.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine Graco replacement parts only.
• Do not alter or modify equipment.
• For professional use only.
• Use equipment only for its intended purpose. Call your Graco distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or overbend hoses or use hoses to pull equipment.
• Comply with all applicable safety regulations.
• Keep children and animals away from work area.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
311001C
311001C
Warnings
WARNING
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death, serious injury, and property damage.
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
5
Installation
Installation
Typical Installation
The typical installation shown in F
IG
. 1 is only a guide for selecting and installing air-assisted spray systems. Contact your Graco distributor for assistance in designing a system to meet your needs.
Grounding
Check your local electrical code and pump manual for detailed grounding instructions. Use only electrically conductive fluid hoses.
Ground the spray gun through connection to a properly grounded fluid supply hose and pump.
VENTILATE THE SPRAY BOOTH
To prevent hazardous concentrations of toxic and/or flammable vapors, spray only in a properly ventilated spray booth. Do not operate the spray gun unless ventilation fans are operating.
Check and follow all of the National, State, and Local codes regarding air exhaust velocity requirements.
Check and follow all local safety and fire codes.
D
B
E
A
C
G
F
IG
. 1: Typical Installation (Model G15 Shown)
Key:
A Air Line Filter
B Air Shutoff Valve
C Gun Air Pressure Regulator
D Air Line
6
F
E Spray Gun
F Electrically Conductive Fluid Hose
G Gun Air Supply Hose
TI6554A
311001C
Installation
Air Line
1.
Install an air filter (A) 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.
See F
IG
. 1.
2.
Install an air pressure regulator (C) on the gun air line to control air pressure to the gun.
3.
Install an air shutoff valve (B) on the gun air line and on the pump air line, to shut off air to the gun.
4.
Use a 3/16 in. (5 mm) I.D. or larger air hose to minimize excessive pressure drop in the hose.
Fluid Line
• Before connecting the fluid line, blow it out with air and flush it with solvent. Use solvent which is compatible with the fluid to be sprayed.
• If better control of fluid pressure is needed, install a fluid regulator on the fluid line to better control fluid pressure to the gun.
1.
Use a fluid filter to remove coarse particles and sediment, to avoid clogging the spray tip and causing finishing defects.
Guns are equipped with a built-in 100 mesh fluid filter to provide final filtering just before spraying.
5.
The gun air inlet has a 1/4-18 npsm (R1/4-19) compound male thread that is compatible with NPSM and BSP female swivel connectors.
Connect the air hose (G) to the 1/4 npsm gun air inlet. See F
IG
. 2.
2.
Connect the fluid hose (F) to the gun fluid inlet. See
F
IG
. 4. If desired, install a fluid swivel connector
(115898) at the gun inlet for best maneuverability.
G
F
TI6846A
TI6556A
F
IG
. 2
F
IG
. 4
6.
Connect the other end of the air hose (G) to the out-
let of the air shutoff valve. See F
B
3.
Connect the other end of the fluid hose (F) to the pump fluid outlet.
G
C
F
IG
. 3
A
TI4838A
311001C 7
Setup
Setup
Flush Before Using Equipment
1.
The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid contaminating your fluid with oil, flush the equipment with a compatible solvent before using the equip-
ment. See Flushing and Cleaning, page 14.
2.
Relieve the pressure. See Pressure Relief Proce-
Select a Spray Tip and Air Cap
The fluid flow and pattern width depend on the size of the spray tip, the fluid viscosity, and the fluid pressure.
See Spray Tip Selection Chart, page 30. Contact your
Graco distributor for assistance in selecting an appropriate spray tip for your application.
Install a Spray Tip
Install a spray tip in the gun. Ensure that the tip locating tab is positioned in the slot of the air cap. See F
IG
. 5.
Tighten the air cap retaining ring (6) firmly by hand to ensure a good seal between the tip gasket and the diffuser (5).
TI6558A
F
IG
. 6
Air Cap Alignment Pin
Model G15 guns (249233) use an air cap alignment pin to position the air cap. The standard location of the air cap alignment pin is the horizontal air cap position.
If you would like to change the spray pattern direction, use a needle nose pliers to unscrew the pin and relocate
it to the desired position. See F
the pin use low-strength thread locker. Torque to 1.5-2.5 in-lb (0.2-0.3 N•m). DO NOT OVERTIGHTEN.
The air cap alignment pin can be removed according to preference.
Air cap alignment pins do not come standard with model
G40 guns (249242).
8
Slot
Tip Locating Tab
TI6847A
F
IG
. 5
Position the Air Cap
The air cap and spray tip position determines the direction of the spray pattern.
Rotate the air cap (the spray tip rotates with it) as needed to achieve the desired spray pattern direction.
F
IG
. 7
TI6847A
Horizontal
Air Cap Position
(standard)
Vertical
Air Cap Position
311001C
Setup
Reverse-A-Clean
®
(RAC) Tip
Model 249238 guns use a Reverse-A-Clean
®
(RAC) tip.
To assemble the RAC tip, insert the seat housing into the air cap assembly.
Insert the gasket seat.
F
IG
. 8
Insert the SwitchTip.
TI7196A
TI7198A
F
IG
. 10
Screw the RAC tip assembly onto the gun and tighten firmly by hand.
TI7199A
TI7197A
F
IG
. 11
F
IG
. 9
311001C 9
Operation
Operation
Safety
5.
Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure. See
SKIN INJECTION HAZARD
Remember, this is not an air spray gun. For your
safety be sure to read and follow the Warnings on
pages 4 and 5 and throughout the text of this instruc-
tion manual.
Keep the wallet sized warning card (222385), provided with the gun, with the operator of this equipment at all times. The card contains important treatment information should an injection injury occur.
Additional cards are available at no charge from
Graco.
Pressure Relief Procedure
F
IG
. 12
TI6555A
SKIN INJECTION HAZARD
The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, 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 spray tip.
Follow Pressure Relief Procedure on page 10 when
you stop spraying and before cleaning, checking, ser-
vicing, or transporting equipment. Read Warnings, page 4.
1.
Engage the trigger lock. See F
2.
Shut off the pump. See your pump manual.
3.
Shut off the gun air supply.
4.
Disengage the trigger lock. See F
6.
Open all fluid drain valves in the system, having a waste container ready to catch drainage. Leave drain valve(s) open until you are ready to spray again.
7.
Engage the trigger lock. See F
8.
If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen the tip guard retaining ring or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction.
Trigger Lock
Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped.
F
IG
. 13
ENGAGED
TI6581A
DISENGAGED
TI6582A
10 311001C
Operation
How the Air-Assisted Spray Gun
Operates
The air-assisted spray gun combines airless and air spraying concepts. The spray tip shapes the fluid into a fan pattern, as does a conventional airless spray tip. Air from the air cap further atomizes the fluid and completes the atomization of the paint tails into the pattern to produce a more uniform pattern. The width of the pattern can be adjusted by the pattern adjustment valve.
The air-assisted spray gun differs from an air spray gun in that increasing the pattern air reduces the pattern width. To increase the pattern width, use less pattern air or a larger size tip.
The spray gun has a built-in lead and lag operation.
When triggered, the gun begins emitting air before the fluid is discharged. When the trigger is released, the fluid stops before the air flow stops. This helps assure the spray is atomized and prevents fluid buildup on the air cap.
2.
Trigger the gun to check the atomization; do not be concerned about the pattern shape yet.
3.
Slowly increase the fluid pressure, just to the point where a further increase in fluid pressure does not significantly improve fluid atomization.
4.
Close off the pattern adjustment air by turning the knob clockwise (in) all the way. See F
IG
. 14. This sets the gun for its widest pattern.
OPEN
CLOSE
TI6559A
F
IG
. 14
Spray Pattern Adjustment
SKIN INJECTION HAZARD
To reduce the risk of component rupture and serious injury, including injection, do not exceed the gun’s maximum fluid working pressure or the maximum working pressure of the lowest rated component in the system.
5.
Set the atomizing air pressure at about 5 psi (0.35 bar, 35 kPa) when triggered. Check the spray pattern, then slowly increase the air pressure until the tails are completely atomized and pulled into the spray pattern. See F
IG
. 15. Do not exceed 100 psi
(0.7 MPa, 7 bar) air pressure to the gun.
For a narrower pattern, turn the pattern adjustment valve knob counterclockwise (out). See F
IG
. 14. If the pattern is still not narrow enough, increase the air pressure to the gun slightly or use a different size tip. (Not available for RAC tip guns.)
1.
Do not turn on the gun air supply yet. Set the fluid pressure at a low starting pressure. If a fluid pressure regulator is installed, use it to make adjustments.
If your system does not have a fluid regulator, the fluid pressure is controlled by the air regulator supplying the pump, per the formula below:
Pump
Ratio x Pump Air Regulator Setting = Fluid
Pressure
no air
TI0792A
too little air correct amount of air
F
IG
. 15
311001C 11
Operation
HVLP Operation
For HVLP operation, the atomization air must not exceed 10 psi. Use HVLP Verification Kit 249140 to verify air psi.
There is no fan adjustment when using RAC tips and caps.
1.
To achieve the best results when applying fluid, keep the gun perpendicular to the surface and maintain a consistent distance of approximately 8 to 12 in. (200 to 300 mm) from the object being sprayed.
2.
To obtain an even finish, use smooth, even strokes across the object being sprayed with 50% overlap.
3.
Paint using parallel strokes. This spray gun applies all coatings evenly without cross coating.
Fluid Application
Always hold the gun at a right angle from the surface.
Do not make an arc with the gun as it causes an uneven
F
IG
. 16
INCORRECT
TI6561A
CORRECT
TI6562A
12 311001C
Daily Gun Care, Flushing, and Cleaning
Daily Gun Care, Flushing, and Cleaning
SKIN INJECTION HAZARD
Follow the Pressure Relief Procedure on page 10
before cleaning the gun.
CAUTION
Methlyene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage aluminum and nylon components.
CAUTION
Solvent left in gun air passages could result in a poor quality paint finish. Do not use any cleaning method which may allow solvent into the gun air passages.
Do not point the gun up while cleaning it.
Do not wipe the gun with a cloth soaked in solvent; wring out the excess.
Do not immerse the gun in solvent.
TI6563A
TI4827A
Do not use metal tools to clean the air cap holes as this may scratch them; scratches can distort the spray pattern.
311001C
TI6564A
TI6565A
13
Daily Gun Care, Flushing, and Cleaning
General System Maintenance
1.
Relieve the pressure, page 10.
2.
Clean the fluid and air line filters daily.
3.
Check for any fluid leakage from the gun and fluid hoses. Tighten fittings or replace equipment as needed.
4.
Flush the gun before changing colors and whenever you are done operating the gun.
Flushing and Cleaning
FIRE AND EXPLOSION HAZARD
Read Warnings, page 4. Follow Grounding instructions, page 6.
Fluid Filter Maintenance
1.
Unscrew the fluid inlet fitting (18).
2.
Remove and inspect the inline fluid filter (12). Clean or replace the filter as necessary.
• Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.
• Flush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.
• Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.
1.
Relieve the pressure, page 10.
2.
Remove the air cap retaining ring (6), air cap (21), and spray tip (33).
3.
Disconnect the fluid supply hose (F) and air supply hose (G) from the gun.
12
18
TI6735A
G
F
IG
. 17
F
IG
. 18
F
TI6566A
TI6567A
14 311001C
Daily Gun Care, Flushing, and Cleaning
4.
Connect the solvent supply hose (T) to the gun.
T
TI6557A
F
IG
. 19
5.
Increase the pressure slowly. Point the gun down into a grounded metal container, and flush the gun with solvent until all traces of fluid are removed from the gun passages.
CAUTION
Trigger the gun whenever you tighten or remove the diffuser (5). This keeps the needle ball away from the seating surface and prevents the seat from being damaged.
9.
If it is necessary to remove the diffuser (5) to clean, trigger the gun while you remove the diffuser with the gun tool (30).
10. Dip the end of a soft-bristle brush into a compatible solvent. Do not continuously soak the brush's bristles with solvent and do not use a wire brush.
TI6729A
F
IG
. 20
6.
Turn off the solvent supply.
7.
Relieve the pressure.
8.
Disconnect the solvent supply hose (T) from the gun.
TI4845A
F
IG
. 22
11. With the gun pointed down, clean the front of the gun, using the soft-bristle brush and solvent.
T
TI6566A
TI6569A
F
IG
. 23
12. Scrub the air cap retaining ring (6), air cap (21), diffuser (5), and spray tip (33) with the soft-bristle brush. To clean out air cap holes, use a soft tool, such as a toothpick, to avoid damaging critical surfaces. Blow air through the spray tip to ensure the orifice is clean. Clean the air cap and spray tip daily, minimum. Some applications require more frequent cleaning.
F
IG
. 21
311001C 15
Daily Gun Care, Flushing, and Cleaning
16. After cleaning the gun, lubricate the following parts with lubricant 111265 weekly:
• Trigger pivot pin (A)
• Boss on both sides of the gun where the trigger contacts the gun body (B)
• Fluid needle shaft, behind trigger (C)
A
B
TI6570A
F
IG
. 24
13. If the diffuser was removed, trigger the gun while you reinstall the diffuser (5) with the gun tool (30).
Tighten the diffuser securely to obtain a good seal.
Torque to 155-165 in-lb (18-19 N•m). When properly tightened, the flange will bottom out on the gun.
14. Install the air cap retaining ring (6), air cap (21), and spray tip (33).
F
IG
. 27
Reverse-A-Clean
C
TI6553A
®
(RAC) Tip
Do not soak the RAC tip seat gasket (33a) in solvent for extended periods of time or swelling may occur.
Clearing a clogged RAC tip
Release the trigger and engage the trigger lock.
TI6568A
F
IG
. 25
15. Dampen a soft cloth with solvent and wring-out the excess. Point the gun down and wipe off the outside of the gun.
ENGAGED
TI6581A
F
IG
. 28
TI6571A
F
IG
. 26
16 311001C
Rotate the SwitchTip.
Daily Gun Care, Flushing, and Cleaning
Engage the trigger lock.
F
IG
. 29
Disengage the trigger lock.
TI7200A
ENGAGED
TI6581A
F
IG
. 32
Return the SwitchTip to its original position.
DISENGAGED
TI6582A
F
IG
. 30
Trigger the gun into a pail to clear the clog.
SKIN INJECTION HAZARD
Do not point gun at anyone or at any part of the body.
TI7201A
F
IG
. 33
Disengage the trigger lock and continue spraying.
DISENGAGED
TI6582A
F
IG
. 34
TI7202A
F
IG
. 31
311001C 17
Troubleshooting
Troubleshooting
• Check all possible remedies in the troubleshooting charts before disassembling the gun.
• Some improper patterns are caused by the improper balance between air and fluid.
SKIN INJECTION HAZARD
Follow Pressure Relief Procedure on page 10.
General Troubleshooting
Problem Cause Solution
Fluid leakage from back of fluid packing area.
Worn packings or needle shaft.
Air leakage from gun.
Air valve not seating properly.
Fluid leakage from front of gun.
Needle ball worn or damaged.
Worn seat assembly.
Replace needle assembly (2).
Clean or replace air valve (8).
Replace needle assembly (2) and seat (5c).
Replace the seat (5c) and gasket (5b, model
G40 gun only). The gasket must be replaced whenever the seat assembly is removed.
Install acetal seat (5c).
Fluid in air passages.
Fluid viscosity too low for proper seal with carbide seat.
Spray tip seal leaking.
Leaking around seat housing.
Tighten retaining ring (6) or replace spray tip
(33).
Replace the gasket (5b, model G40 gun only). The gasket must be replaced whenever the seat assembly is removed.
Slow fluid shut-off.
Fluid inlet fitting leaking.
Fluid buildup on fluid needle components.
Replace the fluid tube gasket (22). The gasket must be replaced whenever the fluid tube connector is removed.
Remove and clean or replace the fluid needle assembly (2).
No fluid output when triggered.
Spray tip plugged.
Fluid filter or fluid hose plugged.
After tip removal (see above), very slowly loosen the hose end coupling at the gun and relieve pressure gradually. Then loosen completely to clear the obstruction. Clean or replace filter (12).
18 311001C
Problem
Fluttering or spitting spray.
Striping spray.
Troubleshooting
Cause
Insufficient fluid supply.
Air in paint supply line.
Attempting to “feather” (partially trigger the gun).
Spray tip partially plugged.
Solution
Adjust fluid regulator or fill fluid supply tank.
Check, tighten pump siphon hose connections, bleed air from paint line.
Cannot “feather” with an AA gun. Feather will cause drastic reduction of pressure at the tip, resulting in poor atomization and/or spitting.
Clean or replace spray tip. See page 14.
Irregular pattern.
Pattern pushed to one side, same side of air cap gets dirty.
Fluid build-up on spray tip, or spray tip partially plugged.
On defective side of pattern, air horn holes are partially or totally plugged.
Clean or replace spray tip. See page 14.
Clean air horn holes with solvent and soft
Air horn holes partially or totally plugged.
Clean air horn holes with solvent and soft
brush or toothpick. See page 14.
311001C 19
Repair
Repair
Items Needed for Service
• Seal Installation Tool (28)-- provided
• Nut Driver Tool (29) -- provided
• Gun Tool (30) -- provided
• O-ring Pick
• 7/32 in. Hex Wrench
• 3/16 in. Hex Wrench
• Compatible Solvent
• Lubricant (part number 111265)
1 4
1
A
C
1
Torque to 90 in-lb
(10.5 N•m).
Repair Kits
• Seal Repair Kit 249422 is available. For best results, use all the new parts in the kit. Kit parts are marked with an asterisk, for example (7*).
• Acetal Seat Repair Kit 249424 (standard for
Model G15 guns) and Carbide Seat Kit 249456
(standard for Model G40 guns) are available.
For best results, use all new parts in the kit. Kit parts are marked with a symbol, for example
(5c†).
• Acetal Seat Kit 249424 and Carbide Seat Kit
249456 can be used with both Model G15 guns and Model G40 guns.
• Acetal Seat Kit 249424 is intended for low pressure usage.
Disassembly
Seat Repair
•
• Clean parts with a solvent that is compatible with the parts and the fluid being sprayed.
1.
Relieve the pressure, page 10. Remove the fluid
and air hoses from the gun.
2.
Remove the air cap retaining ring (6), air cap (21), and spray tip (33). See F
IG
. 36.
Fan Valve Replacement
1.
Relieve the pressure, page 10.
2.
Unscrew the fan valve packing nut (A) from the back of the gun body (1). Slide the fan valve assembly (4) out of the gun body. See F
IG
. 35.
3.
Before reinstalling, turn the pattern adjustment valve
(C) of the replacement fan valve assembly (4) completely counterclockwise to prevent damage to the seat (5c†). Install the replacement fan valve assembly into the gun body (1). Screw the packing nut (A) into the gun body and torque to 90 in-lb (10.5 N•m).
6
TI6576A
F
IG
. 35
Complete Gun Packing Repair
33
21
TI6568A
F
IG
. 36
3.
Trigger the gun to pull the needle housing off the seat while you unscrew the diffuser (5) from the gun body (1), using the gun tool (30).
20 311001C
Repair
4.
Inspect the o-rings (5e*, 5f*, and 5g*) in place.
Carefully remove the o-rings from the diffuser housing (5a) and replace if necessary.
5.
Remove the seat nut (5d†), seat (5c†) and seat gasket (5b†, model G40 gun only) using a 7/32 in. hex wrench.
6.
Inspect the seat (5c†) and seat gasket (5b†) and replace if necessary.
7.
Reinstall the seat gasket (5b†, model G40 gun only), seat (5c†), and seat nut (5d†). Torque to
45-50 in-lb. Be sure not to overtighten the nut.
Needle Repair
1.
Remove the diffuser, see Seat Repair, page 20.
2.
Remove the trigger pivot pin nut (14‡), pivot pin
(13‡), and trigger (3‡) using the gun tool (30) and
13‡
• When reinstalling the carbide seat (5c†), the tapered end of the seat must point toward the gun tip.
• The acetal seat (5c†), standard in model G15 guns (249233), can be reinstalled in either direction.
5e*
5a
5g*
5c†
1
3‡
14‡
TI6574A
F
IG
. 38
3.
Remove the fluid needle assembly (2) from the front of the gun by using the nut driver tool (29). If the needle is bent or damaged, or the packing is worn or leaking, replace the entire needle assembly. If replacement is necessary, be sure to remove the o-ring (2a*) as it may stick inside the gun body. See
5d†
1
5f*
5b†
(G40 only)
30
29
2a*
2
TI6572A
F
IG
. 37
TI6575A
F
IG
. 39
311001C 21
Repair
Air Valve Repair
1.
Unscrew the spring cap (11) from the back of the gun body (1) using the gun tool (30). Remove the two springs (15 and 19), the shaft (9), and seat (10).
2.
Push the air valve assembly (8*) out the back of the
3.
Inspect the u-cup (7*) in the gun body (1). If the u-cup is worn or leaking, carefully remove the u-cup from the front of the gun body, using a pick.
Fluid Tube Replacement
1.
Remove the air inlet fitting (17) using the gun tool
(30) and remove the screw (20) using a 3/16 in. hex wrench.
2.
Unscrew the fluid inlet fitting (18). Remove and clean or replace the inline fluid filter (12).
3.
Unscrew the fluid tube connector (C) from the gun’s fluid inlet. Carefully remove the gasket (22*).
1
7*
8*
15
11
9
10
19
22*
C
17
20
18
F
IG
. 40
TI6577A
F
IG
. 41
12
TI6573A
22 311001C
Repair
311001C 23
Repair
Reassembly
•
1.
Install the tube gasket (22*) in the gun. Handtighten the fluid tube connector (C) into the gun’s fluid inlet.
Handtighten the air inlet fitting (17) and screw (20).
Torque the fluid tube connector to 150-160 in-lb
(17-18 N•m). Torque the air inlet fitting to 175-185 in-lb (20-21 N•m). Torque the fluid tube bracket
screw to 50-60 in-lb (6-7 N•m). See F
2.
Install the inline fluid filter (12) into the base of the fluid tube. Screw the fluid inlet fitting (18) into the base of the tube. Torque to 175-185 in-lb (20-21
3.
Place the new u-cup (7*) on the seal installation tool
(28*), with the u-cup lips facing the tool as shown in
. 42. Push the u-cup into the back of the gun until
you feel a definite snap.
6.
Install the two springs (15 and 19). Screw the spring cap (11) into the back of the gun body. Torque to
175-185 in-lb (20-21 N•m).
7.
Lightly lubricate the needle assembly o-rings and shaft where the packing slides. Be sure that the o-ring (2a*) is in place in the gun body (1).
8.
Insert the fluid needle assembly (2) into the front of the gun. Use the nut driver (29) to screw the fluid needle assembly into the gun body (1) and torque to
29
1
2a*
2†
8 3
7*
3
Lubricate lightly.
8
Lips face out of gun body.
28*
TI6578A
F
IG
. 42
4.
Lubricate the front end of the air valve assembly
(8*). Gently slide the air valve assembly into the back of the gun, passing through the u-cup (7*), as far as it will go. Be careful not to damage the u-cup.
5.
Slide the seat (10) onto the shaft (9). Be sure that the tapered end of the seat is toward the thicker end of the shaft. Carefully insert the shaft (9) and seat
(10) in the air valve (8*).
TI6575A
F
IG
. 43
9.
Install the trigger (3), pivot pin (13), and nut (14).
Use low strength thread locker and be sure that the brass piece of the fluid needle assembly (2) is
of the pivot pin where the trigger contacts the pin and lubricate the boss on both sides of the gun where the trigger contacts the gun body. Torque the nut to 20-30 in-lb (2-3 N•m).
10. Trigger the gun to pull the needle back while you screw the diffuser assembly (5) into the gun body
(1) using the gun tool (30). Torque to 155-165 in-lb
(18-19 N•m). When properly tightened, the flange will bottom out on the gun.
11. Attach the retaining ring (6), air cap (21), and spray tip (33).
24 311001C
Repair
6 (G40 only)
12
21a (G15 only)
*6a
21
*6b
33
6
*5e
4
5a
6
*5f
6
*5g
5b† (G40 only)
5c†
5d†
11
*7
3 8
4
*8
13
3
6 (G15 only)
3
9
2
7
*2a
3
9
15
11
13
10
19
*22
1
1a
1
1
Torque to 150-160 in-lb (17-18 N•m).
3
4
Lubricate lightly.
Torque to 155-165 in-lb (18-19 N•m).
3
14
5
17
13
12
5
Torque to 20-30 in-lb (2-3 N•m).
6
7
8
9
10
Do not lubricate diffuser o-rings.
Brass part must be behind trigger.
16
(249238 &
249246 only)
Lips face out of gun body.
9
20
Torque to 50-60 in-lb (6-7 N•m).
Torque to 125-135 in-lb (14-15 N•m).
16
(249233 & 249242 only)
11
Torque to 45-50 in-lb (5-6 N•m).
12
Use low strength thread locker.
13
Torque to 175-185 in-lb (20-21 N•m).
12
(249233 & 249242 only)
3
18
(249233 & 249242 only)
10
(249233 torque only)
13
(249242 torque only)
F
IG
. 44
TI6579B
311001C 25
Parts
Part No. 249233/G15 Gun
Part No. 249242/G40 Gun
Part No. 249246/G40 Gun, High Flow
6 (G40 only)
◆*6b
21a (G15 only)
◆*6a
21
33
*5e
5a
*5f
5b† (G40 only)
*5g
5c†
5d†
4
13‡
*7
*8
15
11
*2a
9
10
19
6 (G15 only)
2
*22
1a
1
Parts
3‡
16
(249246 only)
20
16
(249233 & 249242 only)
18
(249233 & 249242 only)
14‡
17
12
(249233 & 249242 only)
29
30
28*
26 311001C
Parts
Part No. 249233/G15 Gun w/Plastic Seat
Part No. 287926/G15 Gun w/Carbide Seat
Ref.
No.
Part No. Description Qty.
16
17
18
19
12
13‡
14‡
15
8*
9
10
11
5d†
5e*
5f*
5g*
6
6a*
◆
6b*
◆
7*
1
1a
2
2a*
3‡
4
5
5a
5b†
5c†
BODY, gun
249423 STOP, trigger
249218 NEEDLE, assy; 3/32 ball; sst includes item 2a (249233 only)
287885 NEEDLE, assy; 3/32 ball; carbide includes item 2a (287926 only)
PACKING, o-ring; PTFE
TRIGGER, gun
1
249135 VALVE, fan, assy
249132 DIFFUSER, assy (249233 only)
249133 DIFFUSER, assy (287926 only)
DIFFUSER, housing
GASKET, seat; nylon (287926 only) 1
SEAT; acetal (249233 only) 1
1
1
1
1
1
1
1
1
1
SEAT; carbide (287926 only)
NUT, seat
PACKING, o-ring, seat; PTFE
PACKING, o-ring; PTFE
PACKING, o-ring; PTFE
15F192 RING, retaining
PACKING, o-ring; PTFE
WASHER; PTFE
1
1
1
1
1
1
1
1
PACKING, u-cup; UHMWPE
VALVE, air, assy
15F193 SHAFT, fluid spring
15F194 SEAT, spring
15F195 CAP, spring
224453 FILTER, tip (pkg of 5)
PIN, pivot
PIN, pivot, nut
114069 SPRING, compression
249136 TUBE, assy
15F202 FITTING, air inlet
15F186 FITTING, hose
119767 SPRING, compression (249233 only)
115141 SPRING, compression (287926 only)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
20 119996 SCREW, cap, socket hd; 1/4-20 x
3/8 in. (10 mm)
21 249596 AIR CAP, includes item 21a
21a 15G618 PIN, air cap; indexing
22*
28*
GASKET, tube, acetal
TOOL, installation; seal
29 117642 TOOL, nut driver
30 15F446 TOOL, gun
31
▲ 222385 CARD, warning (not shown)
32
▲ 172479 TAG, warning (not shown)
33 SPRAY TIP, customer’s choice
1
1
1
1
1
1
1
1
1
1
▲ Replacement Danger and Warning labels, tags, and
cards are available at no cost.
* Included in Seal Repair Kit 249422 (purchase separately).
† Included in Acetal Seat Repair Kit 249424 (purchase
separately).
‡ Included in Trigger Repair Kit 249585 (purchase sep-
arately).
◆ Included in Air Cap Seal Kit 253032 (purchase sepa-
rately).
Part No. 249242/G40 Gun w/Standard Tip
Part No. 249246/G40 Gun, High Flow
Ref.
No.
Part No. Description Qty.
17
18
19
20
4
5
2a*
3‡
5a
5b†
5c†
5d†
5e*
5f*
5g*
6
6a*
◆
6b*
◆
7*
8*
9
10
11
12
13‡
14‡
15
16
1
1a
2
BODY, gun
249423 STOP, trigger
287885 NEEDLE, assy; 3/32 ball; carbide includes item 2a
PACKING, o-ring; PTFE
TRIGGER, gun
249135 VALVE, fan, assy
249133 DIFFUSER, assy
DIFFUSER, housing
GASKET, seat; nylon
SEAT; carbide
NUT, seat
PACKING, o-ring, seat; PTFE
PACKING, o-ring; PTFE
PACKING, o-ring; PTFE
249256 TIP GUARD
(249242 & 249246 only)
PACKING, o-ring; PTFE
WASHER; PTFE
PACKING, u-cup; UHMWPE
VALVE, air, assy
15F193 SHAFT, fluid spring
15F194 SEAT, spring
15F195 CAP, spring 1
224453 FILTER, tip (pkg of 5) (249242 only) 1
1
1
1
1
1
1
PIN, pivot
PIN, pivot, nut
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
114069 SPRING, compression
249136 TUBE, assy (249242 only)
249317 TUBE, assy (249246 only)
15F202 FITTING, air inlet
15F186 FITTING, hose (249242 only)
115141 SPRING, compression
119996 SCREW, cap, socket hd; 1/4-20 x
3/8 in. (10 mm) (249242 only)
1
1
1
1
1
1
1
21
22*
28*
29
249180 AIR CAP
GASKET, tube, acetal
TOOL, installation; seal
117642 TOOL, nut driver
30 15F446 TOOL, gun
31
▲ 222385 CARD, warning (not shown)
32
▲ 172479 TAG, warning (not shown)
33 SPRAY TIP, customer’s choice
1
1
1
1
1
1
1
▲ Replacement Danger and Warning labels, tags, and
cards are available at no cost.
* Included in Seal Repair Kit 249422 (purchase separately).
† Included in Carbide Seat Repair Kit 249456 (pur-
chase separately).
‡ Included in Trigger Repair Kit 249585 (purchase sep-
arately).
◆ Included in Air Cap Seal Kit 253032 (purchase sepa-
rately).
311001C 27
Parts
Part No. 249238/G40 Gun w/RAC Tip
★5a
★*5f
★†5b
★*5g
5c†
★
5d†
★
13‡
*7
★4
★*6a
★35
33a
★6
*2a
2
*8
15 11
9
10
19
Parts
1a
1
33
*22
3‡
14‡
17
16
20
29
30
28*
TI7203B
28 311001C
Parts
Part No. 249238/G40 Gun w/RAC Tip
Ref.
No.
Part No. Description
9
10
11
13‡
14‡
15
16
17
1
1a
2
BODY, gun
249423 STOP, trigger
287885 NEEDLE, assy; 3/32 ball; carbide includes item 2a
PACKING, o-ring; PTFE 2a*
3‡ TRIGGER, gun
4
★
15G713 NUT, air plug
5
★
249877 DIFFUSER, assy, RAC
5a
★
DIFFUSER, housing
5b†
★
5c†
★
5d†
★
5e*
★
GASKET, seat; nylon
SEAT; carbide
NUT, seat
5f*
★
5g*
★
6
★
249478 TIP GUARD/AIR CAP ASSY
6a*
★
PACKING, o-ring, seat; PTFE
PACKING, o-ring; PTFE
PACKING, o-ring; PTFE
PACKING, o-ring, PTFE
7* PACKING, u-cup; UHMWPE
8* VALVE, air, assy
15F193 SHAFT, fluid spring
15F194 SEAT, spring
15F195 CAP, spring
PIN, pivot
PIN, pivot, nut
114069 SPRING, compression
249317 TUBE, assy
15F202 FITTING, air inlet
19
20
22*
28*
115141 SPRING, compression
119996 SCREW, cap, socket hd; 1/4-20 x
3/8 in. (10 mm)
GASKET, tube, acetal
TOOL, installation; seal
29 117642 TOOL, nut driver
30 15F446 TOOL, gun
31
▲ 222385 CARD, warning (not shown)
32
▲ 172479 TAG, warning (not shown)
33 SPRAY TIP, customer’s choice,
see tip selection chart page 31,
includes item 33a
33a 246453 SEAT, gasket
35
★ 15F442 HOUSING, cylinder
Qty.
▲ Replacement Danger and Warning labels, tags, and
cards are available at no cost.
* Parts included in Seal Repair Kit 249422 (purchase separately).
† Parts included in Carbide Seat Repair Kit 249456
(purchase separately).
‡ Parts included in Trigger Repair Kit 249585 (pur-
chase separately).
★ Parts included in RAC Conversion Kit 287917 (pur-
chase separately).
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
311001C 29
Spray Tip Selection Chart
Spray Tip Selection Chart
Spray Tips, for use with AA Series Air Cap
AAM Fine Finish Spray Tips
Recommended for high finish quality applications at low and medium pressures. Order desired tip
(Part No. AAMxxx) from matrix below.
GG4 Industrial Spray Tips
Recommended for high wear applications at high pressures. Order desired tip (Part No. GG4xxx) from matrix below.
• All tips in the Spray Tip Selection Chart below can be used with Model G40 guns (249242).
Use tips in the gray shaded area of the chart with Model G40 guns only.
• Do not use tips in the gray shaded area of the chart with Model G15 guns (249233).
SKIN INJECTION HAZARD
Do not use tips in the gray shaded area of the Spray
Tip Selection Chart with Model G15 guns (249233).
Failure to follow this warning can result in serious injury or amputation.
* Fluid Output, fl oz/min (lpm)
Orifice Size in.
(mm) at 600 psi at 1000 psi
(4.1 MPa, 41 bar) (7.0 MPa, 70 bar)
† 0.007 (0.178) 4.0 (0.1) 5.2 (0.15)
2 to 4
(100)
★107
† 0.009 (0.229) 7.0 (0.2) 9.1 (0.27)
109
† 0.011 (0.279) 10.0 (0.3)
0.013 (0.330) 13.0 (0.4)
13.0 (0.4)
16.9 (0.5)
111
0.015 (0.381) 17.0 (0.5)
0.017 (0.432) 22.0 (0.7)
0.019 (0.483) 28.0 (0.8)
0.021 (0.533) 35.0 (1.0)
22.0 (0.7)
28.5 (0.85)
36.3 (1.09)
45.4 (1.36)
‡ 0.023 (0.584) 40.0 (1.2)
‡ 0.025 (0.635) 50.0 (1.5)
‡ 0.027 (0.686) 58.5 (1.7)
‡ 0.029 (0.737) 68.0 (1.9)
‡ 0.031 (0.787) 78.0 (2.2)
‡ 0.033 (0.838) 88.0 (2.5)
‡ 0.035 (0.889) 98.0 (2.8)
‡ 0.037 (0.940) 108.0 (3.1)
‡ 0.039 (0.991) 118.0 (3.4)
51.9 (1.56)
64.8 (1.94)
75.8 (2.27)
88.2 (2.65)
101.1 (3.03)
114.1 (3.42)
127.1 (3.81)
140.0 (4.20)
153.0 (4.59)
* Tips are tested in water.
211
213
215
217
219
4 to 6
(150)
207
209
Maximum Pattern Width at 12 in. (305 mm)
6 to 8
(200)
8 to 10
(250)
10 to 12
(300)
12 to 14
(350)
14 to 16
(400)
16 to 18
(450)
18 to 20
(500)
307
309
311
313
315
317
319
321
409
411
413
415
417
419
421
423
425
509
511
513
515
517
519
521
523
527
611
613
615
617
619
621
623
625
627
629
713
715
717
719
721
723
725
815
817
819
821
825
827
917
919
921
923
431 631
633
★833
435
737
539 639 839
Fluid output (Q) at other pressures (P) can be calculated by this formula: Q = (0.041) (QT) where QT = fluid output (fl oz/min) from the above table for the selected orifice size.
P
† These tip sizes include a 150 mesh tip filter.
‡ Do not use these tips with Model G15 guns (249233).
★ GG4 tips only.
30 311001C
Spray Tip Selection Chart
RAC SwitchTips, for use with AA Series Air Cap
All tips in the Spray Tip Selection Charts below can be used with Model 249238 G40 guns equipped with RAC air cap 249478.
Tips are sometimes packaged with other promotional parts intended for the airless market. Disregard extra parts.
LTX RAC Spray Tips
Order desired tip (Part No. LTXxxx) from matrix below.
Orifice Size in.
(mm)
* Fluid Output, fl oz/min (lpm) at 2000 psi
(14.0 MPa, 140 bar)
0.009 (0.229) 11.2 (0.33)
0.011 (0.279)
0.013 (0.330)
0.015 (0.381)
0.017 (0.432)
16.6 (0.49)
23.3 (0.69)
30.8 (0.91)
39.5 (1.17)
0.019 (0.483)
0.021 (0.533)
0.023 (0.584)
0.025 (0.635)
0.027 (0.686)
0.029 (0.737)
0.031 (0.787)
0.033 (0.838)
0.035 (0.889)
49.7 (1.47)
60.5 (1.79)
72.7 (2.15)
85.9 (2.54)
100.0 (2.96)
115.6 (3.42)
131.8 (3.90)
149.4 (4.42)
2 to 4
(100)
4 to 6
(150)
209
211
213
215
217
219
311
313
315
317
❖ Maximum Pattern Width at 12 in. (305 mm)
6 to 8
(200)
8 to 10
(250)
10 to 12
(300)
12 to 14
(350)
14 to 16
(400)
16 to 18
(450)
18 to 20
(500)
309
319
321
411
413
415
417
419
421
423
511
513
515
517
519
521
523
525
527
531
615
617
619
621
623
625
627
629
631
721
827
535 635
* Tips are tested in water.
Fluid output (Q) at other pressures (P) can be calculated by this formula: Q = (0.041) (QT) where QT = fluid output (fl oz/min) from the above table for the selected orifice size.
P
❖ Measured with NO airflow. Air assist will tend to reduce pattern lengths by 1 in. to 2 in.
311001C 31
Spray Tip Selection Chart
RAC SwitchTips, for use with AA Series Air Cap Continued
• All tips in the Spray Tip Selection Charts below can be used with Model 249238 G40 guns equipped with RAC air cap 249478.
FFT Fine Finish RAC Spray Tips
Order desired tip (Part No. FFTxxx) from matrix below.
Orifice Size in.
(mm)
* Fluid Output, fl oz/min (lpm)
❖ Maximum Pattern Width at 12 in. (305 mm)
at 2000 psi
(14.0 MPa, 140 bar)
4 to 6
(150)
6 to 8
(200)
8 to 10
(250)
10 to 12
(300)
12 to 14
(350)
0.008 (0.203) 8.8 (0.26)
208 308
0.010 (0.254)
0.012 (0.305)
0.014 (0.356)
13.9 (0.41)
19.9 (0.59)
27.0 (0.80)
210
212
214
310
312
314
410
412
414
510
512
514
612
614
WRX WideRAC Spray Tips
Order desired tip (Part No. WRXxxx) from matrix below.
Orifice Size in.
(mm)
0.021 (0.533)
* Fluid Output, fl oz/min (lpm) at 2000 psi
(14.0 MPa, 140 bar)
60.5 (1.79)
0.023 (0.584)
0.025 (0.635)
0.027 (0.686)
0.029 (0.737)
72.7 (2.15)
85.9 (2.54)
100.0 (2.96)
115.6 (3.42)
0.031 (0.787)
0.033 (0.838)
0.035 (0.889)
0.037 (0.940)
0.039 (0.991)
131.8 (3.90)
149.4 (4.42)
168.3 (4.98)
187.9 (5.56)
208.9 (6.18)
1231
1233
1235
1237
1239
❖ Maximum
Pattern Width at
12 in. (305 mm)
24 in.
(610)
1221
1223
1225
1227
1229
* Tips are tested in water.
Fluid output (Q) at other pressures (P) can be calculated by this formula: Q = (0.041) (QT) where QT = fluid output (fl oz/min) from the above table for the selected orifice size.
P
❖ Measured with NO airflow. Air assist will tend to reduce pattern lengths by 1 in. to 2 in.
32 311001C
Accessories
Accessories
Use Only Genuine Graco Parts and Accessories
Air Fitting and Tubing Kit 249473
Alternative-style connector for air inlet and hose. 3/8 in. to 1/4 npt(f) Push-To-Lock fitting, 25 ft (7.62 m) long, 3/8 in. (9.5 mm) ID, nylon tubing.
Air Hose 241811
100 psi (0.7 MPa, 7 bar) Maximum Working Pressure
1/4-18 npsm(fbe), 1/4 in. (6 mm) ID, 25 ft (7.62 m) long polyurethane tubing.
Air Line Quick Disconnect
208536
Air Line Quick Disconnect Coupling
169967
Air Line Quick Disconnect Pin
Fluid Filter Kits
224453 100 mesh (.005 gap spacing) replacement fluid filters. Quantity of 5.
238563 60 mesh (.009 gap spacing) replacement fluid filters for coarser particle filtering to replace standard 100 mesh filters. Quantity of 3.
Fluid Hose 241812
3500 psi (24 MPa, 242 bar) Maximum Working Pressure
1/4-18 npsm(fbe), 3/16 in. (5 mm) ID, 25 ft (7.62 m) long, nylon tubing with polyurethane cover.
Fluid Swivel Connector 115898
5800 psi (40 MPa, 400 bar) Maximum Working Pressure
Connector to ease movement of the gun and fluid hose.
1/4-18 npsm. 17-4 PH SST wetted parts.
Gun Brush 101892
Use to clean the gun.
G15 Gun Flush Box Insert 15G093
Insert for use with Gun Flush Box 244105 and AA
Series G15 Spray Guns.
G40 Gun Flush Box Insert 15G346
Insert for use with Gun Flush Box 244105 and AA
Series G40 Spray Guns.
Gun Lubricant 111265
One 4 oz. (113 g) tube sanitary (non-silicone) lubricant for fluid seals and wear areas.
High Pressure Fluid Ball Valve 238694
5000 psi (35 MPa, 350 bar) Maximum Working Pressure
3/8 npt(mbe). SST wetted parts, PEEK seats, PTFE seals. Compatible with acid-catalyzed materials. Can be used as fluid drain valve.
HVLP Verification Kit 249140
Use to check air cap air pressure at various air supply air pressures. Do not use for actual spraying.
To be HVLP compliant, the atomizing air pressure must not exceed 10 psi (70 kPa, 0.7 bar).
RAC Gasket 246453
Pack of five standard replacement RAC gaskets (item
33a).
Acetal RAC Gasket 248936
Pack of five plastic (acetal) replacement RAC gaskets
(item 33a).
G40 RAC Conversion Kit 287917
Kit includes parts to convert a standard G40 gun
(249242) to a RAC gun. LTX spray tip not included.
Air Cap Seal Kit 253032
Pack of five seals and five o-rings for the air cap assy.
Seal Repair Kit 249422
Kit includes replacement o-rings, gasket, u-cup, air valve assembly, and seal installation tool.
Acetal Seat Repair Kit 249424
Kit includes replacement acetal seat (pack of ten), and seat nut for Model G15 gun.
Carbide Seat Repair Kit 249456
Kit includes replacement carbide seat, seat gasket, and seat nut for Model G40 gun. Kit can also be used with
Model G15 guns, but is not standard.
Tip Filter Kit 241804
Replacement filters for spray tip orifice sizes 0.007,
0.009, and 0.011. Quantity of 10.
Trigger Repair Kit 249585
Kit includes replacement trigger, pivot pins (qty. of 5), and pivot pin nuts (qty. of 5).
Trigger Stop Kit 249423
Kit includes replacement trigger stop and pin.
Ultimate Gun Cleaning Kit 15C161
Kit includes brushes and tools for gun maintenance.
Unclogging Needle Kit 249598
Kit includes picks for unclogging gun tip.
311001C 33
Technical Data
Technical Data
Category Data
Maximum Working Fluid Pressure . . . . . . . . . . . . . . . . . . Model G15: 1500 psi (10 MPa, 105 bar)
Model G40: 4000 psi (28 MPa, 280 bar)
Maximum Working Air Pressure . . . . . . . . . . . . . . . . . . . . 100 psi (0.7 MPa, 7 bar)
Maximum Gun Inlet Air Pressure for HVLP Operation . . . 14 psi (0.098 MPa, 0.98 bar)
Maximum Working Fluid Temperature . . . . . . . . . . . . . . . 110
°
F (43
°
C)
Fluid Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4-18 npsm
Air Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4-18 npsm (R1/4-19) compound male thread
Gun Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 oz (450 grams)
*Sound Pressure at 20 psi (140 kPa, 1.4 bar) . . . . . . . . . 66.9 dB(A)
*Sound Pressure at 100 psi (0.7 kPa, 7 bar) . . . . . . . . . . 80.0 dB(A)
*Sound Power at 20 psi (140 kPa, 1.4 bar). . . . . . . . . . . . 76.8 dB(A)
*Sound Power at 100 psi (0.7 kPa, 7 bar). . . . . . . . . . . . . 89.9 dB(A)
Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel, Carbide, Ultra High Molecular Weight
Polyethylene, Acetal, PTFE, Nylon, Flouroelastomer
* All readings were taken with the fan valve fully closed (full fan size), at 20 psi (140 kPa, 1.4 bar) and 100 psi (0.7 kPa, 7 bar), and at the assumed operator position. Sound Power was tested to ISO 9614-2.
Air Flow, Standard AA Series Air Cap
12
10
10.6
8
Air Flow
(SCFM)
6
4
4.2
6.4
8.6
4.6
5.8
3.8
2
0
0
2.6
10
50
20
30
Gun Inlet Pressure (PSI)
Fan Valve Open
40
Fan Valve Closed
34 311001C
Dimensions
Model G15
8.0 in.
(20.3 cm)
6.9 in.
(17.5 cm)
5.0 in. (12.7 cm)
6.1 in. (15.5 cm)
Model G40
TI6583A
311001C
8.0 in.
(20.3 cm)
6.9 in.
(17.5 cm)
5.8 in. (14.7 cm)
6.9 in. (17.5 cm)
TI6845A
Dimensions
35
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is 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 from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for 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 procédures concernées.
Graco Information
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.
MM 311001
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
www.graco.com
Printed in USA 311001C
12/2005
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