3
MaG HVLP aUtoMatic SPRaY GUn Set-UP inStRUctionS — SPRaY inStRUctionS
to cHanGe fRoM coMBined fan and aiR
to SePaRate fan and atoMizinG aiR.
1. Remove item (31) side port control by turning
counter-clockwise with a 9/16 wrench.
2. Install item (37) allen head set screw into thread at the
bottom of tapered cavity of where the side port was.
3. Install item (38) side port plug into the upper part of
the threaded cavity of where the side port was.
4. Remove item (34) 1/4 NPT plug from the fan air port
and replace it with item (35) D.M. nipple.
Set UP foR SPRaYinG
Safe connection.
• Verify that the gun is grounded per the automated
machine manufacturer’s recommendations.
Connect fluid hose to the manifold.
• Use 3/8" diameter material hose.
• Fluid fitting from hose assembly to 1/4" NPT(f)
fluid inlet on manifold is not furnished.
• 1/4" diameter hose is recommended for low
viscosity materials.
Connect atomizing air to the manifold.
• Install 1/4 NPS(m) x 1/4 NPT(m) fitting (furnished
loose) in atomizing air port.
• Use 5/16” diameter or larger Air hose.
Connect cylinder air hose to manifold.
• Install 1/8 NPT(m) x 1/4 tube fitting (furnished
loose) in cylinder air port.
Controlling the material flow.
• Increasing the material pressure will increase the
flow rate.
• Correct fluid tip size helps insure correct material
flow.
Adjusting the spray pattern.
• By adjusting the side port control you can get the
full range of pattern adjustment when you have
proper fluid and air flow.
• When set-up for remote fan air you achieve a larger
pattern by increasing the air pressure to the fan port.
GeneRaL SPRaY inStRUctionS
1. Minimum cylinder actuating pressure is 50 PSI.
2. To reduce overspray and obtain maximum efficiency,
always spray with the lowest possible fluid/air
pressure that produces an acceptable pattern.
3. Cylinder air line (from the gun manifold to the
solenoid valve) should be kept as short as possible for
quick triggering.
4. All the air used in the gun should be dirt and moisture
free. This is accomplished by using an oil and water
extractor.
5. Shut off all the fluid and air lines to the gun if the gun
is to stand idle for any length of time. This is to
prevent build-up or accumulation of minute leaks in
the system from turning the gun on.
6. The distance between gun and surface should be 6 to
12 inches depending on material and the atomizing
pressure. The material deposited should always be
even and wet. Lap each stroke over the proceeding
stroke to obtain a uniform finish.
7. CONTROLLING THE MATERIAL FLOW
If necessary, fluid can also be adjusted by adjusting
the amount of needle travel. This is done by loosening
lock nut (2) and adjusting control knob (1) until the
correct needle travel is achieved.
8. ADJUSTING THE SPRAY PATTERN
The width of the spray pattern is controlled by the
side port control assembly (31). Turning this control
clockwise until it is closed will give a round spray;
turning it counterclockwise will widen the spray into
a fan shape. The fan shape can be turned anywhere
through 360 by positioning the air cap (20) relative to
the gun. To effect this: loosen retainer ring, position
nozzle, then re-tighten retainer ring.
notE
When fan and atomizing air is separated, they both activate
“on” and “off” with cylinder air control.
