DeVilbiss EGHV-531 Service Manual

SERVICE MANUAL
❚ Repair Kit KK-5044
EGHV-531 HVLP SPRAY GUN
Important: Before using this equipment,
read all safety precautions and instruc-
tions. Keep for future use.
DESCRIPTION
The EGHV-531 HVLP spray gun is de-
signed to be in compliance with rules
issued by South Coast Air Quality Man-
agement District (SCAQMD) and other air
quality authorities.
Note
All wetted surfaces are stain-
less steel and may be used with
materials formulated with chlo-
rinated solvents. A list of mate-
rials used in the construction of
this equipment is available upon
request.
SPECIFICATIONS
Air Inlet
Fluid Inlet
Type Feed Suction or Pressure
Air Consumption 8.8 cfm Inlet
at 50 psi (249 liters/min. 50 psi
at 3.5 bar) (3.5 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).
Note
Only use as much pressure as
required to atomize material.
SB-2-167-F (7/2014)
(SPRAY PISTOL)
EGHV can be used for pressure feed
application. Replace attached container
with fluid hose of proper size and con-
struction to a remote supply.
fluid pressure to deliver the desired
amount of material that can be atom-
ized at 10 psi (.7 bar) cap pressure
or less.
PREVENTIVE MAINTENANCE
To clean fluid passages, remove excess
material at source, then flush with a suit-
able 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, ori-
fices could be plugged or contaminated
from the air supply or other sources.
These orifices are sized and tuned to
1/4" NPS (M)
provide 10 psi (.7 bar) to air cap horn and
1/4" NPS (M)
Cap Press.
10 psi
LUBRICATION
(.7 bar)
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)
Figure 2
❚ Government NSN No. 4940-01-182-697 = KK-5044
center air independently.
Procedure:
adjust pressure at inlet to 50 psi (3.5 bar)
Adjust 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.
distributor)
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)
1 / 8
EN
Attach air cap test kit and
Remove tip (5), baffle (air
(6) and air valve (18) and
Horn Air
(Orifice)