Installation; Operation - DeVilbiss JGA Operation Manual

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Important:
equipment reaches you in first class
condition, protective coatings have
been used. Flush the equipment
through with a suitable solvent
before use.
1. Attach air hose to connector (13).
Recommended hose size 8 mm
bore. The air supply should be
filtered and regulated.
1. M i x c o a t i n g
manufacturers instructions.
2. Fill the cup with the required
amount of material. Fill to no more
than 25mm(1") from the top of the
cup. DO NOT OVERFILL.
3. Attach Cup to the Lid assembly.
4. Turn needle adjusting screw (10)
on the spraygun clockwise to
prevent movement.
5. Turn pattern valve (5) counter-
clockwise to fully open
6. Adjust inlet air pressure to give
3.5 bar (50psi) at the gun inlet
with the gun triggered. (pressure
gauge attachment shown under
Accessories is recommended for
this).
7. Turn needle adjusting screw
counter clockwise until first thread
shows.
8. Test spray. If the finish is too dry
reduce airflow by reducing inlet
pressure. If finish is too wet
reduce fluid flow by turning needle
s c r e w ( 1 0 )
atomisation
increase inlet air pressure. If too
fine reduce inlet pressure.
© ITW Ltd 2001
To ensure that this
m a t e r i a l
c l o c k w i s e .
is too coarse,

Installation

2. Attach the Cup Lid assembly (27)
to the Fluid Inlet connector (17).
3. Position the Yoke at right angles
to the Gun with the Cam lever to
the front (see picture). Make sure
the vent hole in the lid is
positioned under the Yoke and
the hole in the diaphragm is 180°
to the Lid vent hole.

Operation

t o 9. The pattern size can be reduced
by turning adjusting valve (5)
clockwise.
10. Hold gun perpendicular to surface
being sprayed. Arcing or tilting
may result in uneven coating.
11. The recommended spray distance
is 150-200 mm (6"-8").
12. Spray edges first. Overlap each
stroke a minimum of 50%. Move
gun at a constant speed.
13. Always turn off air supply and
relieve pressure when gun is not
in use.
Air Flow Valve (14)
1. If the airflow valve (14) is fitted
this can be used to reduce the
inlet pressure through the gun.
Screw the Adjusting Knob in to
reduce pressure.
I f
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