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Manuel d'utilisation du pistolet de pulvérisation EGA-503
- Manuel d'utilisation du pistolet de pulvérisation EGA-503 [ japonais ]
DESCRIPTION
SPECIFICATIONS
OPERATION
PREVENTIVE MAINTENANCE
Important： Before using this equipment, read all safety precautions and
instructions. Keep for future use.
The EGA-503 is an external mix, touch-up gun. The gun has a long needle taper making detail work easy. The forefinger
trigger gives added control for delicate application.
Can be used for touch-up, shading, edging or any type of precision painting.
Use as either suction or pressure feed application.
Note : Wetted surfaces are stainless steel and aluminum. Please see Warning on Page 2 regarding explosion hazard.
Air Inlet G1/4 (M)
Fluid Inlet G1/4 (M)
Type Feed Suction or Pressure
Wetted Parts Aluminum & Stainless Steel
P1 = Maximum Air Pressure 100 PSI (7 bar)
P2 = Maximum Fluid Pressure 10 PSI (0.68 bar)
Prepare and strain material according to the paint manufacturer's instructions. Attach container to fluid inlet and tighten.
Adjust incoming air pressure to gun to achieve desired spray results.
Note : To minimize overspray, only use as much pressure as required to atomize material.
To clean fluid passages, remove excess material at source, then flush with a suitable solvent.
To clean air cap and fluid tip, brush with a stiff bristle brush. If necessary, use a broom straw or toothpick. Never use a wire or
hard instrument. This may scratch or burr holes causing a distorted spray pattern.
Note : Worn parts can cause fluid leakage. When replacing fluid tip or fluid needle, replace both at the same time. Lapped sets
are available. Also replace the fluid tip gasket and needle packing at this time.
Caution : To prevent damage to the fluid tip or fluid needle, be sure to either 1) push the trigger and hold while tightening the
fluid tip or 2) remove the fluid needle adjusting screw to relieve spring pressure.
* Government NSN No. 4940-01-182-6975 = KK-5044
EGA-503 Spray Gun
Operation Manual
2
For best results, lubricate the points indicated in
Figure 1 daily using Gun Lube SSL-10.
A. Trigger points
B. Packings
C. Adjusting valves
D. Needle/Air valve springs (occasionally)
SAFETY PRECAUTIONS
This manual contains information that is important for you to know and understand. This information relates to USER SAFETY
and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following symbols. Please
pay particular attention to these sections.
WARNING Important safety information – a hazard that may cause serious injury or loss of life.
CAUTION
Important information that tells how to prevent damage to equipment, or how to avoid a situation that may
cause minor injury.
NOTE Information that you should pay special attention to.
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
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 higher than
that of the coating.
• Those used for general cleaning must
have flash points above 100°F (37.8°C).
LUBRICATION
3
HAZARD CAUSE SAFEGUARDS
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 your coating
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.
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.
This spray gun (spray pistol) has aluminum
passages and cannot be used with these
solvents.
Aluminum is also widely used in other spray
application equipment – such as material
pumps, regulators, valves, etc. Check all other
equipment items before use. Read the label or
data sheet for the material you intend to spray. If
in doubt as to whether or not a coating or
cleaning material is compatible, contact your
material supplier.
General Safety Improper operation or maintenance
of equipment.
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).
Solvent Spray During cleaning and flushing,
solvents can be forcefully expelled
from fluid and air passages. Some
solvents can cause eye injury.
Wear eye protection.
Misuse:
• All spray guns (spray pistols) project particles at high velocity and must never be aimed at any part of the body.
• Never exceed the recommended safe working pressures for any of the equipment used.
• The use 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 fluid, must be isolated and
released.
The disposal of waste materials must be carried out in an approved manner. Burning may generate toxic fumes.
The removal or waste solvents and coating materials should be carried out by an authorized local waste disposal service.
4
No. Part Number Description Individual Parts Req.
1 EGA-4 Packing Nut 1
■2 --- Fluid Needle Packing 1
3 EGA-7 Baffle 1
4 EGA-4000-F Tip, Needle & Gasket (includes 4, 5, 15) 1
■5 EGA-59-K5 Gasket (Kit of 5) 1
6 EGA-443 Trigger and Stud Assy. 1
■7 AG-3-1-K5 Trigger Bearing Stud (Kit of 5) 1
8 EGA-40-390 Air Cap 1
9 EGA-11 Retaining Ring 1
10 EGA-454 Fan Adjusting Assembly 1
■ 11 SSG-8205-K10 O-Ring (Kit of 10) 1
■ 12 AG-26-K10 Washer (Kit of 10) 1
■ 13 --- Spring 1
14 EGA-3 Packing Gland 1
15 --- Fluid Needle (included with Item 4) 1
■ 16 AG-7-K5 Needle Spring Kit (Kit of 5) 1
17 AG-16 Fluid Needle Adjusting Screw 1
18 EGA-441 Air Valve Assy. 1
19 AG-46-K3 Lock Nut (Kit of 3) 1
■ 20 EGA-9-K5 Stem (Kit of 5) 1
■ 21 SST-3008-K5 Ball (Kit of 5) 1
■ 22 C-104-K5 Spring (Kit of 5) 1
23 GD-36-K5 Spring Retainer (Kit of 5) 1
■ 24 EGA-5-K6 Air Valve Plunger (Kit of 6) 1
■ A quantity of necessary parts is included in Gun Repair Kit KK-5044. Government NSN No. 4940-01-182-6975 = KK-5044.
Suffixes -K3, -K5, etc. designates kits of multiple parts. Example: EGA-59-K5 is a kit of (5) gaskets.
PARTS LIST
9
8 6
5
24 10
4
3
12 11 12 13
14
Fluid Inlet
1/4 NPS(M)
2
1
19 15
16
Air Inlet
1/4 NPS(M) 17
20
21
18
22
23
7
5
problem Cause Correction
Heavy top or bottom
pattern
Horn holes plugged.
Obstruction on top or bottom of fluid tip.
Cap and/or tip seat dirty.
Clean. Ream with non-metallic point.
Clean.
Clean.
Heavy right or left side
pattern
Left or right side horn holes plugged.
Dirt on left or right side of fluid tip.
Clean. Ream with non-metallic point.
Clean.
Remedies for top-heavy, bottom-heavy, right-heavy and left-heavy patterns:
1) Determine if obstruction is on cap or fluid tip. Do this by making a test pattern. Then, rotate cap
one-half turn and spray another pattern. If defect is inverted, obstruction is on air cap. Clean air
cap as previously instructed.
2) If defect is not inverted, it is on fluid tip. Check for a fine burr on edge of fluid tip. Remove with
#600 wet or dry sand paper.
3) Check for dried material just inside opening. Remove by cleaning.
Heavy center pattern Material flow exceeds air cap’s capacity.
Atomizing pressure too low.
Material too thick.
Thin or lower fluid flow.
Increase pressure.
Thin to proper consistency.
Split spray pattern Fluid adjusting knob turned in too far.
Insufficient material flow.
Atomization air pressure too high.
Too much fan air.
Back out counterclockwise to achieve proper
flow.
Increase fluid pressure (pressure feed).
Reduce air pressure.
Turn fan adjust in to reduce.
Jerky or fluttering spray
Loose or damaged fluid tip/seat.*
Material level too low.
Container tipped too far.
Obstruction in fluid passage.
Loose or broken fluid tube or fluid inlet nipple.
Dry or loose needle packing nut.
Tighten or replace.
Refill.
Hold more upright.
Clean.
Tighten or replace.
Lubricate or tighten.
Will not spray No air pressure at gun.
Needle adjusting screw not open enough.
Check air supply and air lines.
Open needle adjusting screw.
Excessive overspray
(spray mist)
Too much atomization air pressure.
Gun too far from work surface.
Improper stroking (arching, gun motion too fast).
Reduce pressure.
Adjust to proper distance.
Move at moderate pace, parallel to work
surface.
Dry Spray Air pressure too high.
Gun tip too far from work surface.
Gun motion too fast.
Gun out of adjustment.
Decrease air pressure.
Adjust to proper distance.
Slow down.
Adjust.
Fluid leaking from
packing nut
Packing nut loose.
Packing worn or dry.
Tighten, do not bind needle.
Replace or lubricate.
Fluid leaking or dripping
from front of gun
Foreign matter in tip.*
Packing nut too tight.
Dry packing.
Fluid tip or needle worn or damaged.
Needle spring deformed or broken.
Clean.
Adjust.
Lubricate.
Replace tip & needle with lapped set.
Replace.
Runs and sags Too much material flow.
Material too thin.
Gun tilted on an angle.
Adjust gun or reduce fluid pressure.
Mix properly or apply light coats.
Hold gun at right angle to work and adapt to
proper gun technique.
TROUBLESHOOTING
6
problem Cause Correction
Thin, sandy coarse
finish, drying before it
flows out
Gun too far from surface.
Too much air pressure.
Improper thinner being used.
Check distance. Normally 6-8 (152-203
mm).
Reduce air pressure and check spray
pattern.
Follow paint mfg's mixing instructions.
Thick, dimpled finish
orange peel
Too much material
coarsely atomized
Gun too close to surface.
Air pressure too low or too much material.
Improper thinner being used.
Material not properly mixed.
Surface rough, oily, dirty.
Check distance. Normally 6-8 (152-203
mm).
Increase air pressure or reduce fluid
pressure.
Follow paint manufacturer’s mixing
instructions.
Follow paint manufacturer’s mixing
instructions.
Properly clean and prepare.
Excessive fog Too much, or too fast-drying thinner.
Too much atomization air pressure.
Remix properly.
Reduce pressure.
Unable to get round
spray
Fan adjustment screw not seating right.
Air cap retaining ring (nut) loose.
Clean or replace.
Tighten.
* Most common problem.
7
Part No. Description
P-H-5516 AIR ADJUSTING
VALVE
Enables user to control and reduce air usage at the gun.
Ideal for low pressure spraying.
42884-214-K5 3/8
42884-215-K10 5/8
CLEANING BRUSHES
These brushes are helpful in cleaning threads and recesses
of gun body. Available in U.S. only.
WR-103 WRENCH Contains all necessary tip, hose and nut sizes used on or
with gun. Available in U.S. only.
TGS-503 Cup 8 ounce (240 ml) polyethylene suction cup.
GUN LUBE, SSL-10-K12
2 oz. (60 m) bottle
Compatible with all paint materials: contains no silicone or
petroleum distillates to contaminate paint.
HAV-500 or HAV-501
Air Adjusting Valve
(HAV-501 shown)
HAV-500 does not have pressure gauge. Use to control air
usage at gun
HARG-510 Air Regulator Use to maintain nearly constant outlet pressure despite
changes in inlet pressure and downstream flow.
Millennium 3000 Twin Cartridge
Paint Spray Respirator
NIOSH-Certified, for respiratory protection in atmospheres
not immediately dangerous to life.
192212 Professional Spray Gun
Cleaning Kit
Contains six precision tools designed to effectively clean all
DeVilbiss, Finishline and other brand spray guns.
192218 Scrubs®
Hand Cleaner Towels
(Automotive Refinish)
29-3100 Scrubs® Hand Cleaner
Towels (Industrial Finishing)
Scrubs® are a pre-moistened hand cleaner towel for
painters. No water is needed.
KK-5060 Air Cap Cleaning Kit Consists of: 2 brushes, 1 wire pick. Helps keep air cap
clean and performing properly.
OM_HG_EGA-503-E01_2025.05
ACCESSORIES
