7. Turn the pressure control knob counterclockwise to the
minimum pressure setting.
8. Turn the pump ON/OFF switch to OFF.
Priming
1. Attach the suction set to the
pump.
a. Thread the suction hose
nut onto the inlet valve on
the pump.
b. Thread the return hose
onto the return hose fitting
on the pump.
2. Place the suction set into a
container of paint.
3. Turn the pressure control knob counterclockwise to the
minimum pressure setting.
Always reduce the pressure to zero before changing the
position of the PRIME/SPRAY valve. Failure to do so may
cause damage to the paint pump diaphragm.
4. Turn the PRIME/SPRAY
valve to PRIME.
5. Move the pump ON/OFF
switch to the ON position.
6. Turn the pressure control
knob clockwise to between
half and full pressure. Let
the unit prime 1 to 2
minutes after paint begins
to flow through the return
hose until no bubbles are
present.
7. Turn the pressure control
knob counterclockwise to
the minimum pressure
setting.
8. Move the pump ON/OFF switch to the OFF position.
If the pressure control knob is reduced to zero and the
PRIME/SPRAY valve is still on SPRAY while the pump is
operating, there will be high pressure in the hose and
spray gun until the PRIME/SPRAY valve is turned to
PRIME or until the spray gun is triggered to relieve the
pressure.
Painting
The AirCoat spray system has two different painting modes.
The AirCoat mode is used for fine finish work with low to
medium viscosity materials (oil, stains, lacquers, etc...). The
airless mode is used for general painting with high viscosity
materials (latex).
Painting in AirCoat Mode
Use the AirCoat mode for low-pressure fine finish work (pump
pressure up to 1000 PSI).
1. Make sure that the airless spray hose is free of kinks and
clear of objects with sharp cutting edges.
2. Turn the pressure control knob counterclockwise to its
lowest setting.
3. Turn the compressor air pressure regulator
counterclockwise to its lowest setting.
CAUTION
PRIME/SPRAY
Valve
Pressure
Control Knob
CAUTION
NOTE: The pump can be
used with the
optional hopper
accessory instead
of the suction set.
Inlet
Valve
PRIME/
SPRAY
Valve
Return
Hose Fitting
4. Move the compressor ON/OFF
switch to the ON position.
5. Move the pump ON/OFF switch
to the ON position.
6. Turn the PRIME/SPRAY valve to
SPRAY.
7. Turn the pressure control knob
clockwise until the material
pressure gauge reads 400 PSI.
The paint hose should stiffen as
paint begins to flow through it.
8. Turn the air pressure regulator
clockwise until the air pressure
gauge reads 20 PSI.
9. Unlock the gun by
turning the gun lock
nut counter-
clockwise (when
looking from the
back of the gun)
three full turns. This
opens the material
valve in the gun.
10. Trigger the spray gun
to bleed air out of the
material hose.
11. When material
reaches the spray
tip, spray a test area
to check the spray
pattern.
12. Adjust the spray
pattern to the desired size and atomization.
a. Use the pressure control knob to control the flow of
paint to the gun.
b. Use the air pressure regulator to control the amount of
atomization air available to the gun.
c. Use the pattern adjustment knob on the gun to fine
tune the spray pattern.
Painting in Airless Mode
Use the airless mode for general high-pressure spraying
(pump pressure from 500 to 2000 PSI).
1. Make sure that the airless spray hose is free of kinks and
clear of objects with sharp cutting edges.
2. Turn the pressure control
knob counterclockwise to its
lowest setting.
3. Turn the PRIME/SPRAY
valve to SPRAY.
4. Move the pump ON/OFF
switch to the ON position.
5. Turn the pressure control
knob clockwise to its
highest setting. The paint
hose should stiffen as paint
begins to flow through it.
6. Unlock the gun by turning
the gun lock nut counter-
clockwise (when looking from the back of the gun) three
full turns. This opens the material valve in the gun.
7. Trigger the spray gun to bleed air out of the material hose.
8. When material reaches the spray tip, spray a test area to
check the spray pattern.
PRIME/SPRAY
Valve
Pressure
Control Knob
NOTE: Refer to the spray gun Owner’s Manual for
information on the operation of the gun.
Air Pressure
Regulator
Air
Air
Pressure
Pressure
Gauge
Gauge
Air
Pressure
Gauge
Material
Material
Pressure
Pressure
Gauge
Gauge
Material
Pressure
Gauge
Compressor
ON/OFF Switch
Pump ON/OFF
Switch
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