Speedaire 2Z365G Manual De Instrucciones De Operación página 4

Speedaire Operating Instructions
Speedaire
Conventional Spray Guns
Introduction (Continued)
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Pattern Control knob – Used to form
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the proper pattern (size and shape) of
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paint as it is sprayed from the gun to the
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workpiece.
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Pressure Feed – Method of paint
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feed where a canister or paint tank is
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pressurized to force paint to the gun.
Either internal or external mix air caps
are used with this method. Pressure
feed is generally used for spraying heavy
bodied paints or for large size projects.
Siphon Feed – Method of paint feed
where atmospheric pressure creates a
partial vacuum to siphon paint to the
gun. Only external mix air caps are used
with this method. Siphon feed is used
with light bodied paints.
Viscosity – A measurement of the
resistance to the flow of liquids.
TyPES OF SPRAy GUN SET-UPS
PRESSURE FEED CUP SET-UP
Air pressure for atomization is
controlled by the regulator on the
air source. The fluid pressure is set by
adjusting the cup regulator. The amount
of fluid is also adjusted by the fluid
control knob (See Figure 1). This method
is required for heavy fluids and when
using internal mix nozzle spraying. This
method generally requires a special fluid
tip, needle and air cap set.
PRESSURE FEED TANK SET-UP
This method is the same as the pressure
feed cup set-up except that the gun can
be oriented in any position independent
of the tank (See Figure 2). This method
is useful for medium production or large
scale spraying applications.
Pressure Feed -
®
Preparation
1. Thoroughly mix and thin paint
in accordance with the paint
manufacturer's instructions. Most
materials will spray readily if
thinned properly.
2. Strain material through cheese cloth
or a paint strainer.
3. Fill the canister about 3/4 full and
start the air compressor.
4. Set up a piece of cardboard or other
scrap material to use as a target and
adjust for best spray pattern.
5. Test the consistency of the material
by making a few strokes on a
cardboard target. If material
still appears too thick, add a
small amount of thinner. THIN
WITH CARE!! Do not exceed
paint manufactuer's thinning
recommendations.
FAN DIRECTION
The direction of the fan (horizontal or
vertical) can be changed by loosening
the lock ring and turning the air cap 90
degrees (See Figure 3). Hand tighten
lock ring after adjustment.
Air Cap
Locking Ring
Figure 3
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PATTERN ADjUSTmENT
1. Adjust air pressure to the spray gun
according to the recommendations
supplied with the spray material. This
air pressure usually falls between
40 psi - 60 psi.
maximum pressure.
Adjust air pressure with the trigger
pulled and air control knob (if
applicable) fully open. If reduced air
pressure is desired for some areas of
the spray job, use the air compressor's
regulator or air control knob to
reduce pressure as necessary (See
Figures 4).
Air Control
Knob
Increase Air
Figure 4 - Air Adjustment on Spray Gun
2. Set pattern size to desired shape. For
full pattern, open pattern control
knob by turning counterclockwise.
For a round pattern, turn pattern
control knob clockwise (See Figure
6).
Horizontal Fan
Pattern Control Knob
Vertical Fan
Figure 6 - Patern Size
3. Open the fluid control knob by
turning counterclockwise about
three turns.
Do not exceed
spray gun
Decrease Air
Flow Flow
Fluid Control Knob