- 2017/08/29 AGX AUTOMATIC SPRAY GUNS OPERATION MANUAL [ Japanese ]
Important：Read and follow all instructions and SAFETY PRECAUTIONS before using this equipment.
Retain for future reference.
DESCRIPTION
The AGX spray gun is used on automatic and semi-automatic machines where mass production spraying of articles is
necessary or hand spraying is not accurate enough. Models and application information follows.
NOTE:
This gun may be used with chlorinated solvents. Aluminum is not used in fluid passages. If using chlorinated
solvents, make sure all other fluid handling components are also compatible.
Chart 1 MODELS
Model No.
(Available Tip Sizes) Typical Applications Fluid Tip/Needle Construction
AGX-550 (AC, D, E, FF, FX, G) Most conventional materials and most
waterbornes and chlorinated solvents.
400 Gr. Stainless
303 Gr. Stainless
AGX-552 (D, EE, FF)
Abrasive materials (i.e. porcelain
enamel, ceramic glazes, buffing
compounds) and/or water mix materials.
Includes abrasive fluid seal.
Carboloy, 400 Gr.
Stainless
AGX-553 (E, FF, FX) Waterbornes and more corrosive
materials (below 7 pH)
303 Gr.Stainless
w/U.H.M.W.poly.
insert
SPECIFICATIONS
Max. Air Pressure 0.69MPa (100 psi)
Max. Fluid Pressure 0.69MPa (100 psi)
Cylinder Air Pressure Min. 0.35MPa (*50 psi)
Max. 0.69MPa (100 psi)
Weight without mounting stud 737g
with mounting stud 865g
Mounting Stud Diameter 3/4 (see Accessories for Optional 1/2 mounting)
Wetted Parts
AGX-550 300 & 400 Gr.Stainless, PTFE
AGX-552 300 & 400 Gr. S.S., carboloy, PTFE
AGX-553 300 Gr. S.S., PTFE, U.H.M.W. Poly.
Hose Connections
- Fluid Inlet 3/8 NPS(M)
- Cylinder Air 1/4 NPS(M)
- Atomization Air 1/4 NPS(M)
* For installations where 50 psi cylinder air is not available, the inner (red) piston spring can be removed which lowers the
minimum cylinder air to approximately 37 psi. Refer to Operations, page 5, paragraph 2.
AGX-550, AGX-552 & AGX-553
AUTOMATIC SPRAY GUNS OPERATION MANUAL
2
FLUID TIP ORIFICE SIZES
Letters on Tip Inch mm
AC .110 2.8
D .086 2.2
E .070 1.8
EE .070 1.8
FF .055 1.4
FX .042 1.1
G .028 0.7
FIGURE 1 DIMENSIONS
Tools Required:
Adjustable wrench for hose connections
1/2 six point box wrench for Ref. (3)
9/16 open wrench for Ref. (9)
3/16 hex wrench for Ref. (6)
Long neck pliers for Ref. (19)
1/8 hex key for Ref. (24)
1/2 and 9/16 socket wrench for Ref. (3) (9)
3
SAFETY PRECAUTIONS
This manual contains important information that ALL users should know and understand BEFORE using this equipment. This
information relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS.
To help you recognize this information, we use the following terms to draw your attention to certain equipment labels and
portions of this manual. Pay special attention to any label or information that is highlighted by one of these terms:
PROP 65 WARNING
WARNING: This product contains chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
WARNING Important information to alert you to a situation that might cause serious injury or loss of life if
instructions are not followed.
CAUTION Important information that tells how to prevent damage to equipment.
NOTE Information that you should pay special attention to.
WARNING
The following hazards may occur during the normal use of this equipment. Please read the following chart.
HAZARD CAUSE SAFEGUARDS
Fire Solvents and coatings can be highly
flammable or combustible, especially
when sprayed.
1. Adequate exhaust must be provided to keep
the air free of accumulations of flammable
vapors.
2. Smoking must never be allowed in the spray
area.
3. Fire extinguishing equipment must be
present in the spray area.
4. Static discharges must be prevented. Ground
(earth) all conductive objects in the spray
area, such as a cleaning solvent bucket, fire
extinguisher, etc.
5. When using solvents for cleaning:
• Those used for equipment flushing must
have a flash point equal to or greater than
that of the coating.
• Those used for general cleaning must
have flash points above 100°F (37.8°C).
Inhaling Toxic Substances Certain materials may be harmful if
inhaled or if there is contact with the
skin.
1. Follow the requirements of the Material
Safety Data Sheet supplied by coating
material manufacturer.
2. Adequate exhaust must be provided to keep
the air free of accumulations of toxic
materials.
3. Use a mask or respirator whenever there is a
chance of inhaling sprayed materials. The
mask must be compatible with the material
being sprayed and its concentration.
Equipment must be as prescribed by an
industrial hygienist or safety expert, and be
NIOSH approved.
Explosion Hazard –
Incompatible Materials
Halogenated hydrocarbon Solvents-
for example:
methylene chloride and
1,1,1,-Trichloroethane are not
chemically compatible with the
aluminum that might be used in
many system components. The
chemical reaction caused by these
solvents reacting with aluminum can
become violent and lead to an
equipment explosion.
The AGXV spray gun can be used with these
solvents.
However, aluminum is widely used in other
spray application equipment – such as material
pumps, cups, regulators, valves, etc. Check all
other equipment items before use of these
solvents. Read the label or data sheet for the
material you intend to spray. If in doubt as to
where or not a coating or cleaning material is
compatible, contact your material supplier.
4
HAZARD CAUSE SAFEGUARDS
General Safety Improper operation or maintenance
may create a hazard.
Operators should be given adequate training in
the safe use and maintenance of the equipment
(in accordance with the requirements of
NFPA-33, Chapter 15 in U.S.). Users must
comply with all local and national codes of
practice and insurance company requirements
governing ventilation, fire precautions, operation,
maintenance and housekeeping (in the U.S.,
these are OSHA Sections 1910.94 and
1910.107 and NFPA-33).
Noise Levels The continuous A-weighted sound
pressure level of this spray gun may
exceed 85dB(A) depending on the
air cap/nozzle set-up being used.
Sound levels are measured using an
impulse sound level meter and
analyzer, when the gun is being used
in a normal spraying application.
Details of actual noise levels
produced by the various air
cap/nozzle set-ups are available on
request.
Wear earplugs when using the spray gun.
Spraying solvent Pressured air/fluid passage may be
broken when cleaning or flashing
with solvent.
The solvent may be harmful if
contacted with eyes.
Always wear eye protection when spraying or
cleaning the equipment.
Misuse:
• All spray guns project particles at high velocity and must never be aimed t any part of body.
• Never exceed the recommended safe working pressure for any of the equipment used.
• The fitting of non-recommended or non-original accessories or spare parts may create hazardous conditions.
• Before dismantling the equipment for cleaning or maintenance, all pressures, air and material, must be isolated and
released.
Disposal of non-metallic materials must be carried out in an approved manner. Burning may generate toxic fumes.
The removal of waste solvents and coating materials should be carried out by an authorized local waste disposal service.
INSTALLATION
Mount the gun with the stud (13) or on a 5/16 dia. rod tightening adequately with the 1/4-28 X 1/4 set screws (Ref. No. 24).
See ACCESSORIES for mounting clamps.
Figure 2. TYPICAL INSTALLATION
Trigger/
Cylinder Air
Atomization Air
Atomization Air Trigger/
Cylinder Air
HFRL-511
Filter-Regulator
Fluid
Reciculating Port Automatic Valve
Skip Spray Valve
3 Way Hand Valve
Attach trigger/cylinder air hose and atomization
air hose to connections as indicated by
markings on gun body. The air supply should be
filtered and regulated. Attach material hose to
fluid inlet on the body. Fluid can be recirculated
by installing a fluid fitting (AGX-415) (order
separately) at recirculating port. See Caution
below.
5
CAUTION
The fluid inlet and recirculating ports have a tapered seating surface intended for use with the AGX-415 fitting. Do not
substitute other fittings as fluid leakage will occur.
Note
If replacing the atomization air connection (15) with an elbow type connection, be aware of a possible air flow (CFM)
limitation. A 1/4 I.D. 90° elbow will only pass 20 CFM @ 0.28MPa. Some air caps require more than 20 CFM. Spray
performance could be affected.
OPERATION
1. Mix, prepare and strain material to be sprayed according to paint manufacturer’s instructions. Use a lint free mesh to strain
material.
2. Turn on cylinder air at source of supply. Supply air should be a minimum of 0.35MPa (3.5 bar). For consistant operation the
pressure should be regulated. If 0.35MPa cylinder air pressure is not available, the red inner spring (31) can be removed.
This allows a minimum cylinder pressure of approximately 0.26MPa.
Note
If red inner spring (31) is removed, atomization pressure should not exceed 0.48MPa (will result in gun not
shutting off).
3. Turn needle adjustment knob (25) counterclockwise several turns. With cylinder air on, turn adjustment knob (25) clockwise
until it contacts piston (19) (for maximum fluid flow). Back knob out 1/2 turn.
Note
Due to close part tolerances, actuate gun on and off 7 or 8 times to break-in the packings. Do this with material
supply off.
4. Adjust atomization air pressure to 0.35MPa (3.5 bar). Always attempt to keep pressure as low as possible to minimize
overspray. The fluid pressure should be between 0.07MPa to 0.1MPa (0.7 to 1.0 bar).
5. Open hand valve and/or trip automatic valve if installed in system and observe spray pattern. Adjust air and fluid pressures
until desired pattern is obtained. Control fluid pressure at source of supply. If desired regulation is not practical at this point,
restrict flow by turning adjustment knob (25) clockwise.
6. The width of spray pattern is controlled by adjusting valve (23) marked FAN. With FAN valve screwed fully clockwise,
spreader air will be closed off causing a round pattern. By gradually opening this valve, pattern changes to a fan spray. The
width is determined by amount valve is opened. Atomization air is adjusted by regulating supply air to gun.
CHART 2 FLUID TIPS AND NEEDLES
AGX-550 GUN – 400 Gr. Stainless Tip / 303 Gr. Stainless Needle
Tip Size in. mm Fluid Tip Number Needle Number
AC .110 2.8 AV-2115-AC AGX-402-AC
D .086 2.2 AV-2115-D AGX-402-D
E .070 1.8 AV-2115-E AGX-402-E
FF .055 1.4 AV-2115-FF AGX-402-FF
FX .042 1.1 AV-2115-FX AGX-402-FX
G .028 0.7 AV-2115-G AGX-402-G
AGX-553 GUN – 303 Gr. Stainless & UHMW Poly.
Tip Size in. mm Fluid Tip Number Needle Number
E .070 1.8 AV-4915-E AGX-402-E
FF .055 1.4 AV-4915-FF AGX-402-FF
FX .042 1.1 AV-4915-FX AGX-402-FX
AGX-552 GUN – Carbolloy - Tip / Needle Set
Tip Size in. mm If this Number on Tip order ➡ Tip / Needle Set
D .086 2.2 AV-1415-D AGX-4410-D
EE .070 1.8 AV-1415-EE AGX-4410-EE
FF .055 1.4 AV-1415-FF AGX-4410-FF
Adjustments to fan may be controlled remotely by using the optional KK-4955 fan control adapter to replace the AGG-403
control valve (23).
6
Figure 2A. AIR CIRCUIT EXAMPLE WITH OPTIONAL KK-4955 REMOTE FAN CONTROL
7. Close automatic valves and begin operation.
CHART 3 AIR CAPS
If this No. on Cap, Order→ Ref. No. (2)
Air Cap Less Retaining Ring
Ref. No. (1 & 2)
Air Cap with Retaining Ring
24 AV-40-24
30 MB-4039-30
58 AV-439-58
62 MB-4039-62HD
64 MB-4039-64HD
704 AV-1239-704
765 AV-1239-765
777 31767-777
797 AV-1239-797
PREVENTIVE MAINTENANCE
WARNING
Risk of Injury. Equipment and fluid may be under pressure.
Pressure in the system must be relieved before beginning the cleaning procedure and before replacing any parts.
Follow the procedures in the service literature provided with the system.
CLEANING
1. Relieve air pressure from pressure tank. Carefully follow instructions in the service bulletin sent with tank.
2. Replace material in container with a suitable solvent.
3. Re-pressurize system.
4. Trigger gun and repeat procedure until gun and hose are thoroughly clean. A SolventSaver™ type hose and gun cleaner
which supplies a mixture of air and solvent can be used to most effectively clean gun and hose internal passages. See
Accessories for SolventSaver™. Wipe exterior of gun with a solvent dampened cloth.
5. If a recirculating system is used, it may be necessary to fit a shut off valve in return line to ensure fluid tip and forward
portion of sprayhead passage are properly cleaned when flushed with solvent.
6. Refer to page 12 for optional gun and hose cleaners.
CAUTION
Do not totally submerge gun in solvent. It is possible to wash solids into air operating sections of gun which could
seriously damage piston o-ring seals.
CAUTION
The air cap can be immersed in solvent for cleaning. If orifices are clogged, use a broom straw or toothpick to
remove obstruction. Never use a steel wire or hard instrument. This will damage air cap and result in a distorted
spray pattern.
7
REPLACEMENT
Fluid needle (28) and Tip (3)
CAUTION
To prevent possible damage to the fluid tip (3) or needle (28), always remove the adjustment knob (25) before
loosening or tightening the fluid tip.
CAUTION
To prevent possible damage to the spray gun, do NOT loosen or tighten the fluid tip (3) if the fluid inlet (9) is
removed. The stainless steel insert may turn within the gun body.
1. Relieve all air and fluid pressure in system.
2. Remove retaining ring (1) and air cap (2).
3. Remove fluid tip (3).
4. It is recommended that both the fluid tip (3) and needle (28) be replaced at the same time. The needle packings (11)
should also be replaced when replacing the needle.
5. Remove baffle (5). It should be replaced if it is damaged or filled with foreign material.
6. Remove adjusting knob (25).
7. Remove needle (28) with pliers.
8. Reassemble in reverse order.
Fluid Needle (28) and Fluid Needle Packings (11)
1. With sprayhead (8) and adjusting knob (25) removed, the fluid needle (28) and packings (11) can be easily removed and
replaced. See step 4 above.
2. Slide onto the new needle (28), in this order, 1 packing (11), spring (12) and 1 packing (11). Be sure to orient packings (11)
as shown. For Model AGX-552, slide brass collar piece and seal (32) over needle.
3. Insert new needle into gun and slide packings and spring over needle.
4. Assemble sprayhead (8) with retaining screws (7).
5. Tighten screws (7) with a 3/16 hexagon key 30-40 in. lbs. until the body is flush with sprayhead assembly.
Piston (19) , O-Rings (17 & 18) and Seal (20)
1. Remove piston housing (29) by removing rear retaining screws (7).
2. Remove fluid needle (28).
3. Remove springs (30, 31 & 27) and piston (19). Care must be taken when removing piston (19). Use a locking long nose
pliers to extract piston by clamping on inner ring on back of piston.
4. Remove air packing (20), o-rings (17 & 18).
5. Wipe clean bore of cylinder. Replace piston o-rings (17 & 18) and lightly lubricate with clean petroleum jelly. See
Lubrication section which follows.
6. To replace air packing (20) (inside of piston), slide packing (20) over the needle (28) with ead-in chamfer towards the fluid
tip end of needle. Insert needle into the piston (19). Hold piston in your hand so that tip end of needle is protruding
downward (protect needle from damage). Lightly tap blunt end of needle to drive packing down into piston. The needle
will stop inside piston at a shoulder.
7. Fit complete assembly into gun.
8. Lubricate outside of springs (27) and (30) (see Lubrication section), then re-install springs and piston housing (29) and
tighten down and torque mounting screws (7) 30-40 in. lbs.
9. Lubricate adjustment knob threads (25) after cleaning with SSL-10 Gun Lube. Loosen locking nut (26) before screwing
the adjustment knob in.
Plug (6) or Fluid Insert(9)
WARNING
Halogenated Hydrocarbon solvents can chemically react with aluminum. A risk of explosion or severe corrosion will
occur. The following assembly step must be carefully performed.
If replacing AGX-415 inlet fitting, or if it should loosen, follow assembly procedures below.
1. If installing a used fitting, clean paint and thread sealant from fitting threads and gun body using a brass or bronze wire
brush/bottle brush.
2. Screw jam nut all the way onto fitting. Then apply Loctite medium strength #242 (blue) to first few threads of the fitting.
3. Install AGX-415 fitting into spray gun and tighten to a maximum of 12 ft. lbs. torque. (Do not overtighten, damage may
occur.)
4. Tighten jam nut to 16 ft. lbs. torque using a thin 9/16 open end wrench.
5. Use two adjustable wrenches when removing a hose connection from AGX-415 to prevent inlet fitting from loosening.
8
Figure 5. Gun Exploded View
HVLP Conversion
This gun can be converted to HVLP by ordering parts listed below.
Sprayhead Assembly AGXV-400
Baffle AGHV-403
Air Cap (Order One) JGHV-101-33A
JGHV-101-46MP
(For Max. Performer, also order AV-2120-FF fluid tip and AGX-402-FF needle OR
AV-2120-FX fluid tip and AGX-402-FX needle.)
JGHV-101-83MP
(For Max. Performer, also order AV-2120-E fluid tip and AGX-402-E needle OR
AV-2120-D fluid tip and AGX-402-D needle.)
LUBRICATION
The piston o-rings (17 and 18) must be lubricated when piston (19) is removed. Lightly lubricate with clean petroleum jelly.
Petroleum jelly is effective as a lubricant up to approximately 110°F. Above 110°F, petroleum jelly will become liquid and will
not lubricate the o-rings adequately. If ambient temperature adjacent to spray gun exceeds 110°F, use Parker O-Lube. This
allows the spray gun to be used in temperatures up to 150°F continuous without lubrication degradation.
Lubricate outside of larger piston spring (30) and needle spring (27) with a light coating of non-silicone grease. Apply a thin
film of petroleum jelly to fluid needle (28) as shown on page 6, note 1.
Note
Due to close part tolerances, after repairing the gun, actuate gun on and off 7 or 8 times to break-in the packings.
Do this with material supply off.
9
Figure 4 GUN ASSEMBLY
Item No. Replacement Part No. Description Ind. Parts Req’d.
1 MBC-368 Retaining Ring 1
2* See Chart 3 Air Cap 1
3*☆ See Chart 2 Fluid Tip 1
4*▲ AV-1-K5 Gasket 1
5 MBC-1225 Baffle 1
6 AGX-6-K3 Fluid Outlet Plug (Kit of 3) 1
7 SSF-3156-K4 Mounting Screw (Kit of 4)
(torque 30-40 in. lbs.)
8
8 AGX-403 Sprayhead Assembly 1
9 AGX-415 Inlet Fitting and Jam Nut 1
10*▲ --- O-Ring 2
11*▲ AGX-7-K2 Needle Packing 2
12*▲ --- Seal Spring 1
13 KK-4995 Gun Mounting Stud Kit
(Includes items 21 & 22)
1
14 AGX-11 Body 1
15 H-2008 Nipple 1/4 NPS(M) x 1/4 NPT(M) 1
16 H-1766 Nipple 1/4 NPS(M) x 1/8 NPT(M) 1
17*▲ --- O-Ring 1
18*▲ --- O-Ring 1
19 AGX-9 Piston 1
10
Item No. Replacement Part No. Description Ind. Parts Req’d.
20*▲ --- Air Packing 1
21 --- Hex Head Cap Screw, 5/16-18 x 2-1/4 1
22 --- 5/16 Lockwasher 1
23 AGG-403 Air Valve Assembly - Horn 1
24 --- 1/4-28 x 1/4 Large Knurled
cup point set screw
2
25 AGX-2-1-K3 Adjustment Knob (Kit of 3) 1
26 34215-122 Locknut 1
27*■ --- Needle Spring 1
28*☆ See Chart 2 Fluid Needle Assembly 1
29 AGX-10 Piston Housing 1
30*■ --- Outer Piston Spring 1
31*■ --- Inner Piston Spring (Red) 1
32* KK-5017 Abrasive Fluid Seal Kit (Model AGX-552,
includes 3 seals and 1 collar)
1
* Recommended spare parts.
▲ Parts included in KK-4992-1 Gun Repair Kit.
☆ Order tip and needle set, see Chart 2.
■ Springs included in KK-4993 Spring Kit.
Detail Ref. No. 32
Note
Apply a thin film of petroleum jelly to the fluid needle as shown
11
SERVICE CHECK
problem Cause Correction
Will not spray. No pressure to gun.
Piston stops moving.
New air packing (20)
Check air and material lines.
Check tightness of socket screws (7).
Remove fluid needle (28) and lubricate with
petroleum jelly and reassemble.
Improper spray pattern. A. Gun not adjusted properly.
A, B. Material build up on the air cap or fluid tip.
A. Re-adjust. See Operation Section.
A, B. Clean the air cap or fluid tip. See
Preventive Maintenance.
Note
To determine where the material build up is, rotate the air cap 180°and test spray. If the pattern
stays in the same position, the condition is caused by material build up on the fluid tip. If the pattern
changes with air cap movement, the buildup is in the air cap.
C, D. Wrong material or material too thick.
Insufficient material or atomizing air
pressure too high.
C, D Adjust material pressure or thin material.
Increase material or reduce atomizing
air pressure.
Jerky or fluttering spray 1. Insufficient material in the tank or an obstruction
in the line.
2. Gun material passage plugged.
3. Worn packings (11).
4. Loose or damaged Fluid Tip.
1. Fill tank or clear obstruction.
2. Clean.
3. Replace.
4. Tighten or replace.
Fluid leaking from
needle Needle packings
(11).
1. Needle packings (11) worn.
2. Damaged cylinder of Gun Body (6).
1. Replace.
2. Replace.
Dripping from Fluid Tip. 1. Worn or damaged fluid tip (3) or needle (28).
2. Piston springs (30) and/or (31) damaged or
deformed.
3. Check to verify only one air packing (20) is
installed in piston.
1. Replace.
2. Replace.
3. Remove extra.
Air Leakage from
Control Valve (23)
Worn seals. Replace valve. (23).
Normal spray pattern The proper combination of fluid pressure, fan and atomization air pressure, and fluid tip
size should result in a pattern of this shape.
Proper gun adjustment will result in normal spray patterns, from round with the fan
control valve (23) closed, to long and narrow with the valve open. Pattern width depends
upon how much the valve is opened, the type of air cap used and fluid flow rate.
12
ACCESSORIES
42884-214-K5 3/8
42884-215-K10 5/8
Cleaning Brushes
AGA-415
Universal Clamp
183GZ-5200
Hose/Gun Cleaner
SolventSaver™
HD-503 (2 qt.)
Hose/Gun Cleaner
SolventSaver™
SSL-10
Spray Gun Lube
2 oz. bottle
These brushes are helpful
in cleaning threads and
recesses of gun body.
Attaches to the gun stud
(13),clamps onto (3/4)
diameter rod.
2 gallon galvanized tank
used to clean the inside of
hose and material
passages of the gun.
Used to clean the inside of
hose and material
passages of the gun.
Use on air cap and retaining
ring. Compatible with all
paint materials, contains no
silicone or petroleum
distillates to contaminate
paint. MSDS available upon
request.
KK-4955
Fan Control
Adapter Kit
HFRL-511
Filter-Regulator KK-5046 Mounting Block Kit JGA-156-K10
Spring Clips
Used for adjusting pattern
size from a remote air
source.
Use in the line between
the source of air supply
and the gun for the
purpose of extracting dirt
and entrained water and
oil.
Will also enable users to
regulate and control
atomization air pressure
to the gun.
Allows gun to be mounted on a 1/2 rod.
Joins any single piece
DeVilbiss air cap with latest
version MBC- 368 or MSA-1
retaining ring.
Helps prevent parts loss and
provides easier assembly.
Millennium 3000
Twin Cartridge
Paint Spray Respirator
WR-103 Wrench 29-3100 Scrubs®
Hand Cleaner Towels
AGA-414 Extension
Road Assembly
NIOSH-Certified, for
respiratory protection in
atmospheres not
immediately dangerous to
life.
Contains all necessary tip,
hose and nut sizes used
on or with gun.
Scrubs® are a
premoistened hand
cleaner towel for painters.
No water is needed.
Rod Length:16 inches
Rod Diameter:3/4 inch
Clamp Diameter:3/4 inch
Pressure Feed Tanks:
183G Galvanized and 183S Stainless Steel pressure feed tanks are intended for use as a pressure container to supply
material at a constant preset pressure.
KK-5017 Fluid Seal Kit
– For use with abrasive materials. Includes 1 brass seal collar and 3 polyethylene fluid seals.
2017-08- AGX
