6 308–044
Operation
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The system pressure must be manually relieved to
prevent the system from starting or spraying acci-
dentally. To reduce the risk of an injury from acci-
dental spray from the gun, splashing fluid, or
moving parts, follow the
Pressure Relief Proce-
dure
whenever you:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray nozzle.
1. Turn off the air and fluid supply to the gun.
2. Trigger the gun into a grounded metal waste
container to relieve system pressures.
Filter the Fluid
Strain or filter the paint to remove coarse particles and
sediment, then check the viscosity of your fluid. This
gun is best suited for light to medium fluids.
Light Fluid:
19 to 24 seconds (No. 2 Zahn cup). Auto,
furniture, appliances, fine finish metallics, top coats, lac-
quer, enamel primer.
Medium Fluid:
22 to 41 seconds (No. 2 Zahn cup). Con-
tact adhesive, latex, maintenance paints, textures, prim-
ers, epoxies, vinyls, high flow high viscosity.
Heavy Fluid:
2.8 Volatile organic compounds, high-solid
polyurethanes, heavy waterborne enamels
Adjusting the Spray Pattern
The desired pattern, volume of fluid output and degree
of atomization can easily be obtained by regulating the
fan adjustment valve (5) and the fluid adjustment
knob (6). See Fig. 2.
NOTE:
A Remote Fan Valve Kit is available. See
Accessories.
Adjust the Pattern Size
Turn the fan adjustment valve (5) out (counterclock-
wise) to make the spray pattern wider.
NOTE:
The pattern width at the widest adjustment is
10 to 11 in. (254 to 279 mm) at 350 grams/min. fluid
flow and 10 in. (254 mm) target distance with 65 psi
(444 kPa, 4.5 bar) inlet air pressure. (Measurements
taken using a 23 sec. zahn #2 viscosity fluid.) The
pattern length will vary with the fluid flow, air pressure,
fluid viscosity, and other factors.
Adjust the Fluid Output Volume
Turn the fluid adjustment knob (6) out all the way
(counterclockwise). Then adjust the air pressure at the
pressure feed tank until the desired fluid flow is ob-
tained. For the final adjustment, turn the fluid adjust-
ment knob in (clockwise) to reduce the volume of fluid
output and obtain the desired results.
NOTE:
If the fluid adjustment knob is turned in all the
way, the gun will emit only air.
Test Spray Pattern
Hold the gun about 6 to 8 inches (150 to 200 mm)
away from the surface of the test piece. Adjust the air
pressure to the gun until proper atomization is
achieved. Use the lowest possible air pressure to
obtain the desired results.
Continuous Spraying
Leave the fan and fluid adjustment valves in the full
open positions. This provides maximum fluid flow and
prevents premature wear on the fluid nozzle. Use
separate regulators to control the air and fluid flow to
the gun.
Short-term Operations
The pattern size may be reduced by turning in the fan
and fluid adjustment valves.
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