DeVilbiss EGHV-531 Service Manual

SERVICE MANUAL

❚ Repair Kit KK-5044

EGHV-531 HVLP SPRAY GUN

EN

(SPRAY PISTOL)

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

DESCRIPTION

The EGHV-531 HVLP spray gun is de­signed to be in compliance with rules
issued by South Coast Air Quality Man­agement District (SCAQMD) and other air
quality authorities.

Note

All wetted surfaces are stain­less steel and may be used with
materials formulated with chlo­rinated solvents. A list of mate­rials used in the construction of
this equipment is available upon
request.

SPECIFICATIONS

Air Inlet 1/4" NPS (M)
Fluid Inlet 1/4" NPS (M)
Type Feed Suction or Pressure
Air Consumption 8.8 cfm Inlet Cap Press.
at 50 psi (249 liters/min. 50 psi 10 psi
at 3.5 bar) (3.5 bar) (.7 bar)

OPERATION

Prepare and strain material according
to the paint manufacturer's instructions.
Attach container to fluid inlet (24) and
tighten. Adjust incoming air pressure to
gun to approximately 50 psi (3.5 bar or
less). Use clean, dry air and adjust inlet
air pressure to obtain a maximum of 10 psi
(.7 bar) reading on GA-357 gauge (part of
Air Cap Test Kit, see Accessories).

EGHV can be used for pressure feed
application. Replace attached container
with fluid hose of proper size and con­struction to a remote supply. Adjust
fluid pressure to deliver the desired
amount of material that can be atom­ized at 10 psi (.7 bar) cap pressure
or less.

PREVENTIVE MAINTENANCE

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.

If performance problems develop, ori­fices could be plugged or contaminated
from the air supply or other sources.
These orifices are sized and tuned to
provide 10 psi (.7 bar) to air cap horn and

LUBRICATION

For best results, lubricate the points indicated in Figure 2 daily
using SSL-10 Gun Lube.
See Accessories.

A. Trigger points
B. Packings
C. Adjusting valves
D. Needle – Air valve springs (occasionally)

center air independently.
Procedure: Attach air cap test kit and
adjust pressure at inlet to 50 psi (3.5 bar)
with trigger depressed. Air cap test kit
gauge should read 10 psi + 0 -1 psi (.7 bar
+ 0 - .1 bar). If pressure varies more than
10%, clean orifices using the following
procedures. Remove tip (5), baffle (air
distributor) (6) and air valve (18) and
blow air back through the orifice to clear
blockage. Reassemble. See Figure 1.

Center Air
(Orifice)

Figure 1 (Facing front of gun with tip
removed)

Horn Air
(Orifice)

Note

Only use as much pressure as
required to atomize material.

SB-2-167-F (7/2014) 1 / 8

Figure 2

❚

Government NSN No. 4940-01-182-697 = KK-5044

EN

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.

Note

Important safety information –
a hazard that may cause serious
injury or loss of life.

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

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

CAUSE SAFEGUARDSHAZARD

Fire

Solvent Spray

Inhaling Toxic Substances

General Safety

Explosion Hazard –
Incompatible Materials

Solvents and coatings can be highly
flammable or combustible, especially
when sprayed.

During cleaning and flushing, solvents
can be forcefully expelled from fluid
and air passages. Some solvents can
cause eye injury.

Certain materials may be harmful if
inhaled or if there is contact with the
skin.

Improper operation or maintenance
of equipment.

Halogenated hydrocarbon solvents,
for example: methylene chloride
and 1,1,1, - Trichlorethylene, 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.

Information that you should pay
special attention to.

CA PROP

65

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

• Those used for general cleaning must have flash

Wear eye protection

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.

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).

This spray gun (spray pistol) can be used with
these solvents. However, aluminum is widely used
in other spray application equipment - such as
material pumps, regulators, valves, etc. Check all
other equipment items before use and make sure
they can also be used safely with these solvents.
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.

PROP 65 WARNING

WARNING: This product contains chemicals
known to the State of California to cause
cancer and birth defects or other
reproductive harm.

a flash point equal to or higher than that of the
coating.

points above 100°F (37.8°C).

SB-2-167-F (7/2014)2 / 8

PARTS LIST

Ref. Replacement Individual

No. Part No. Description Parts Req.

1 EGA-4 Packing Nut 1
 12 38273-136-K5 Needle Packing (Kit of 5) 1
3 EGHV-439-397HV Air Cap with Ring 1
4 EGA-7 Baffle (air distributor) 1
5 EGA-4000-E Tip, Needle & Gasket Assy. 1
6 EGA-59-K5 Gasket (Kit of 5) (Polyethylene) 1
7 EGA-443 Trigger & Stud Assy. 1
18 AG-3-1-K5 Trigger Bearing Stud (Kit of 5) 1
19 EGA-5-K6 Air Valve Plunger (Kit of 6) 1
10 EGA-454 Fan Adjustment Assy. - Horn 1
11 SSG-8205-K10 O-Ring (Kit of 10) 1
12 AG-26-K10 Washer (Kit of 10) 2
13 --- Spring 1
14 EGA-3 Packing Gland 1

WARRANTY

This product is covered by DeVilbiss' 1 Year Limited Warranty.
See SB-1-000 which is available upon request.

For Europe, this will not affect the purchasers statutory rights,
for example, under the U.K. Consumer Protection Act.

NOTE

7

EN

Ref. Replacement Individual

No. Part No. Description Parts Req.

15 --- Fluid Needle (included in Item 5) 1
16 AG-7-K5 Needle Spring (Kit of 5) 1
17 AG-16 Needle Adj. 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 --- Spring 1
23 GD-36-K5 Spring Retainer (Kit of 5) 1
24 EGHV-3 Fluid Adapter 1
25 EGHV-453 Gun Body Assy. 1

 A necessary quantity of parts is included in Gun Repair Kit KK-5044.

Government NSN No. 4940-01-182-697 = KK-5044

Suffixes -K3, -K5, etc. designates kits of multiple parts.
Example: EGA-59-K5 is a kit of (5) seals.

8

9

6

10

5

4

12 11

12

13

14

25

15

2

3

1

24

19

20

16

Fluid Inlet

1/4" NPS(M)

17

Air Inlet

1/4" NPS(M)

SB-2-167-F (7/2014) 3 / 8

18

21

22

23