DeVilbiss JGA-510-DEC, MSA-510-DEC Service Bulletin

SERVICE BULLETIN

SB-2-582

Replaces SB-2-582

JGA-510-DEC DECORATOR SPRAY GUN

IMPORTANT: Before using this equip­ment, read all safety precautions and
instructions. Retain for future use.

DESCRIPTION

The JGA-510-DEC is a gun that can
apply decorative spatter effects to
wood furniture, metal panels, etc.
Finish may be changed from a fine
mist to larger droplet size particles.
Simply adjust fluid pressure and/or
air pressure

The JGA-510-DEC comes with the flat­end AV-447 spatter cap assembly.
Small spatter dots are the result of
coarse atomization when using the
standard spatter cap assembly (2).

OPERATION

Note

This gun may be used with
chlorinated solvents. Alumi­num is not used in the fluid
passage areas.

Mix material according to manufacturer's
instructions. It may be necessary to strain
material.

A greater than normal gun distance
provides a more uniform particle size.
Particle spacing is determined by speed
of movement and degree of overlap.
Particle size is dependent on the mate­rial consistency. Specially formulated
spatter materials are available, although
standard paints may be used. Apply
standard paints using very little or no
reduction.

Pressure on cup or tank controls
material flow. Begin with the fluid
needle adjusting screw (32) wide open.
Use fluid needle adjusting screw (32)
to regulate material flow under
abnormally low material pressure or
material viscosity conditions.

Adjust atomization air to get desired
particle size. It should be high enough
to carry particles to surface. Spatter
dot size increases with pressure reduc­tion, and decreases with pressure in­crease. Pressure used depends on
material viscosity being sprayed and
desired operation speed.

PREVENTIVE MAINTENANCE

To clean gun passages, blow back
paint to material supply source and
flush fluid passage with clean solvent.
Model HD-503 Gun/Hose Cleaner is a
very fast and effective way of cleaning
(See Accessories). Wipe gun clean
with solvent soaked cloth.

If slots of ring (4) become clogged,
clean by soaking cap in solvent and
scrubbing with a gun cleaning brush.

Note

When replacing the fluid tip or
fluid needle, replace both at
the same time. Using worn
parts can cause fluid leakge.
Also, replace the needle pack­ing at this time.

Using SSL-10 gun lube, lightly lubri­cate the threads of the fluid tip before
reassembling. Torque to 12-15 ft. lbs.

To prevent damage to the fluid
tip (7) or fluid needle (28), be
sure to either 1) pull the trigger
and hold while tightening the
fluid tip or 2) remove fluid
needle adjusting screw to re­lieve spring pressure.

Spray Gun Lubrication

For best results, lubricate the points
indicated, daily. Use SSL-10 Spray
Gun Lube to lubricate.

A. Trigger Points
B. Packings
C. Adjusting Valves
D. Air Baffle Threads

B

D

B

A

A

C

Page 2 SB-2-582

SAFETY PRECAUTIONS

This manual contains information that is improtant 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.

Note

Important safety information - A hazard
that may cause serious injury or loss of
life.

The following hazards may occur during the normal use of this equipment.

Please read the following chart before using this equipment.

HAZARD CAUSE SAFEGUARDS

Fire Solvent and coatings can be highly Adequate exhaust must be provided to keep

flammable or combustible, especially air free of accumulations of flammable vapors.
when sprayed.

Solvent Spray During cleaning and flushing, sol- Wear eye protection.

vents can be forcefully expelled
from fluid and air passages. Some
solvents can cause eye injury.

Important information that tells how to
prevent damage to equipment, or how
to avoid a situation that may cause
minor inury.

Smoking must never be allowed in the spray area.

Fire extinguishing equipment must be present
in the spray area.

Information that you should pay spe­cial attention to.

Inhaling Toxic Substances Certain materials may be harmful Follow the requirements of the Material Safety

if inhaled, or if there is contact Data Sheet supplied by your coating material
with the skin. manufacturer.

Adequate exhaust must be provided to keep the
air free of accumulations of toxic materials.

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 hygienst or safety
expert, and be NIOSH approved.

Explosion Hazard - Halogenated hydrocarbon solvents This gun can be used with these solvents.

- for example; methylene chloride However, aluminum is widely used in other spray
and 1, 1, 1 - Trichloroethane can application equipment - such as, material pumps,
chemically react with aluminum. cups, regulators, valves, etc. Check all other equip­The chemical reaction caused by ment items before use and make sure they can
these solvents reacting with aluminum also be used safely with these solvents. Read the
can become violent and lead to an label or material data sheet for the material you
equipment explosion. intend to spray. If in doubt as to whether or not a

coating or cleaning material is compatible, contact
your material supplier.