DeVilbiss JGA-510 User Manual
SERVICE BULLETIN
SB-2-252-J
Replaces SB-2-252-I
■Major Repair Kit KK-4987-2
Minor Repair Kit KK-5034
JGA-510 CONVENTIONAL SPRAY GUN
IMPORTANT: Before using this equipment, read all safety precautions and instructions. Keep for future use.
DESCRIPTION
The JGA-510 can be utilized with the wide
range of air caps and needles. It is a general
purpose, heavy duty, high production
spray gun suitable for use with most
types of materials. The fluid tip and needle
and internal fluid passages are stainless
steel.
Conversion to HVLP - The JGA-510, plus
JGA-503 models, can be converted to
HVLP if desired. Contact DeVilbiss for information.
Note
This gun includes 300 series stainless steel fluid passages and 300/400
series tip and needle. Guns may
be used with chlorinated solvent
materials, but see page 2 for
additional warnings.
Important: This gun may be used with
most common coating and finishing materials. It is designed for use with mildly
corrosive and non-abrasive materials. If
used with other high corrosive or abrasive materials, it must be expected that
frequent and thorough cleaning will be
required and the necessity for replacement of parts will be increased.
OPERATION
Note
Protective coating and rust inhibitors
have been used to keep the gun in
good condition prior to shipment.
Before using the gun, flush it with
solvent so that these materials will be
removed from fluid passages.
Page 6, if any problems occur.
PREVENTIVE MAINTENANCE
To clean air cap and fluid tip, brush
exterior with a stiff bristle brush. If necessary to clean cap holes, use a broom straw
or toothpick. Never use a wire or hard
instrument. This may scratch or burr holes
causing a distorted spray pattern.
To clean fluid passages, remove excess
material at source, then flush with a suitable solvent using a device such as the
SolventSaver™ (see Accessories). Wipe
gun exterior with a solvent dampened cloth.
Never completely immerse in solvent as
this is detrimental to the lubricants and
packings.
Note
When replacing the fluid tip or fluid
needle, replace both at the same
time. Using worn parts can cause
fluid leakage. Matched sets are available for most pressure feed combinations. See Chart 3. Matched sets
are particularly recommended with
thinner, less viscous materials. Also,
replace the needle packing at this
time. Lightly lubricate the threads
of the fluid tip before reassembling.
Torque to 20-25 ft. lbs. Do not overtighten the fluid tip.
To prevent damage to the fluid tip
(4) or fluid needle (33), be sure to
either 1) pull the trigger and hold
while tightening or loosening the
fluid tip or 2) remove fluid needle
adjusting screw (28) to relieve
spring pressure against needle
collar.
FLUID INLET GASKET (7) REPLACEMENT
INSTRUCTIONS
1. Remove fluid inlet adapter with appropriate wrench.
2. Clean Loctite from gun body inlet
threads and seal area.
3. Place gasket (7) squarely onto the fluid
inlet adapter and push it down until it
is flat against the boss.
4. Place a couple of drops of medium
strength blue No. 242 Loctite on
threads before installing fluid inlet
adapter.
5. Torque fluid inlet adapter to 20-25 ft.
lbs., and tighten locknut.
SPRAY GUN LUBRICATION
Daily, apply a drop of SSL-10 spray gun
lube at trigger bearing stud (21) and the
stem of the air valve (13) where it enters
the air valve assembly (17). The shank of
the fluid needle (33) where it enters the
packing nut (19) should also be oiled. The
fluid needle packing (18) should be lubricated periodically. Make sure the baffle (6)
and retaining ring (1 or 2 ) threads are
clean and free of foreign matter. Before
assembling retaining ring to baffle, clean
the threads thoroughly, then add two
drops of SSL-10 spray gun lube to
threads. The fluid needle spring (30) and
air valve spring (12) should be coated with
a very light grease, making sure that any
excess grease will not clog the air passages. For best results, lubricate the
points indicated, daily.
A. Trigger Points
B. Packing
C. Adjusting Valves
D. Baffle Threads
E. Air Valve Cartridge
A
Strain material thru 60 or 90 mesh screen.
Adjust fluid pressure to deliver the desired
paint volume. Adjust air pressure and flow
to provide a uniform dispersion of atomized
paint throughout the pattern. Keep air
pressure as low as possible to minimize
bounce - back and overspray. Excessive
fluid flow will result in heavy center spray
patterns. Inadequate flows may cause the
pattern to split. See “Troubleshooting”,
C
D
■
Government NSN No. 4940-01-046-9919 = KK-4987-2.
B
E
Page 2 SB-2-252-J
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 information that tells how to
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
Spray
Inhaling Toxic
Substances
Explosion Hazard Incompatible
Materials
General Safety
Cumulative Trauma
Disorders (“CTD’s”)
CTD’s, or musculo- CTD's when using hand tools, tend to affect any such symptoms, see a physician immediately. Other early
skeletal disorders, the upper extremities. Factors which may symptoms may include vague discomfort in the hand, loss of
involve damage to increase the risk of developing a CTD include: manual dexterity, and nonspecific pain in the arm. Ignoring early
the hands, wrist, symptoms and continued repetitive use of the arm, wrist and
elbows, shoulders, 1. High frequency of the activity. hand can lead to serious disability. Risk is reduced by avoiding
neck & back. Carpal 2. Excessive force, such as gripping, pinching, or lessening factors 1-7.
tunnel syndrome & or pressing with the hands and fingers.
tendinitis (such as 3. Extreme or awkward finger, wrist, or arm
tennis elbow or positions.
rotator cuff syndrome)
are examples of
CTD’s. 6.
Solvent and coatings can be highly flammable Adequate exhaust must be provided to keep air free of
or combustible especially when sprayed. accumulations of flammable vapors.
Smoking must never be allowed in the spray area.
Fire extinguishing equipment must be present
in the spray area.
During use and while cleaning and flushing, Wear eye protection.
solvents can be forcefully expelled from fluid
and air passages. Some solvents can cause
eye injury.
Certain materials may be harmful if inhaled, Follow the requirements of the Material Safety Data Sheet
or if there is contact with the skin. supplied by your coating material manufacturer.
Halogenated hydrocarbon solvents - for Guns with stainless steel internal passageways may be used
example; methylene chloride and 1, 1, 1 - with these solvents. However, aluminum is widely used in other
Trichloroethylene are not chemically com- spray application equipment - such as material pumps,
patible with the aluminum that might be used regulators, valves and cups. Check all equipment items before
in many system components. The chemical use and make sure they can also be used safely with these
reaction caused by these solvents reacting with solvents. Read the label or data sheet for the material you intend
aluminum can become violent and lead to to spray. If in doubt as to whether or not a coating or cleaning
an equipment explosion. material is compatible, contact your material supplier.
Improper operation or maintenance of Operators should be given adequate training in the safe use &
equipment. maintenance of the equipment (in accordance with the require
Use of hand tools may cause cumulative Pain, tingling, or numbness in the shoulder, forearm, wrist,
trauma disorders (“CTD’s”). hands or fingers, especially during the night, may be early
4.
Excessive duration of the activity.
5.
Tool vibration.
Repeated pressure on a body part.
7. Working in cold temperatures.
CTD’s can also be caused by such activities
as sewing, golf, tennis bowling, to name a few.
prevent damage to equipment, or how
to avoid a situation that may cause
minor inury.
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 hygienist or safety expert, and
be NIOSH approved.
ments of NFPA-33, Chapter 15). Users must comply with all local
and national codes of practice and insurance company require
ments governing ventilation, fire precautions, operation,
maintenance and housekeeping. These are OSHA Sections
1910.94 and 1910.107 and NFPA-33.
symptoms of a CTD. Do not ignore them. Should you experience
Information that you should pay special attention to.
CHART 1
NOZZLE COMBINATIONS
Air Cap
Sizes
Order
From
Chart 2
Orifice
mm
AC D E EE EX FF FX FW GX
Tip
in./ .110 .080 .070 .070 .070 .055 .042 .063 .034
2.8 2.2 1.8 1.8 1.8 1.4 1.1 1.6 .9
Fluid Tip and Needle Size
Order From Chart 3
24 P P P
30 P S S S S
58 S P P P
62HD P
64HD P
67HD P
69HD P
80 S S S S
704 P P P
765 P P P
777 P P
797 P P
9000 S S S S
P = Pressure Feed Combination
S = Suction Feed Combinations
CHART 2
No. on Ref. No. (1) Ref. No. (3)
Cap Air Cap Air Cap Less Ring
Order With Ring
➞
24 AV-40-24
30 MB-4039-30
58 AV-439-58
62HD MB-4039-62HD
64HD MB-4039-64HD
67HD MB-4039-67HD
69HD MB-4039-69HD
80 MB-4039-80
704 AV-1239-704
765 AV-1239-765
777 31767-777
797 AV-1239-797
CHART 3
FLUID TIPS AND NEEDLES
Tip Orifice If this is *Ref. No. 5 Ref. No. 33 **Ref. No. 36
Size No. on tip Fluid Tip & Fluid Needle Matched Tip &
In. / (mm) order Gasket (No. on needle) Needle Set
.110 (2.8) AV-2115-AC AV-650-AC JGA-402-C JGA-4040-AC
.086 (2.2) AV-2115-D AV-650-D JGA-402-DEX JGA-4040-D
.070 (1.8) AV-2115-E AV-650-E JGA-402-E JGA-4040-E
.070 (1.8) AV-2115-EX AV-650-EX JGA-402-DEX JGA-4040-EX
.055 (1.4) AV-2115-FF AV-650-FF JGA-402-FF JGA-4040-FF
.042 (1.1) AV-2115-FX AV-650-FX JGA-402-FX JGA-4040-FX
.063 (1.6) AV-2115-FW AV-650-FW JGA-402-FF JGA-4040-FW
.034 (.9) AV-2115-GX - - - - - - JGA-4040-GX
OPTIONAL 300 GR. S.S. W/ U.H.M.W. POLYETHYLENE NEEDLE SEAT
.086 (2.2) AV-4915-D - - - - - - JGA-4056-D
.070 (1.8) AV-4915-E - - - - - - JGA-4056-E
.055 (1.4) AV-4915-FF - - - - - - JGA-4056-FF
.042 (1.1) AV-4915-FX - - - - - - JGA-4056-FX
.028 (.8) AV-4915-G - - - - - - JGA-4056-G
.086 (2.2) AV-1415-D AV-617-D JGA-409-D - - .070 (1.8) AV-1415-EE AV-617-EE JGA-409-DEEE - - .055 (1.4) AV-1415-FF AV-617-FF JGA-409-FF - - -
➞
400 GR. S.S. TIPS & 303 GR. S.S. NEEDLES
OPTIONAL CARBOLOY TIPS & NEEDLES
9000 AV-440-9000
SB-2-252-J Page 3
AIR CAPS
* AV-1 copper gasket included — DO NOT use with JGA-510 gun
** Matched tip & needle sets are recommended to assure leak-free operation
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