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12 308765
Operation
Adjust the Spray Pattern
1. Start the pump. Use the pump air regulator (G) to
adjust the pump speed and fluid pressure until the
spray is completely atomized. Use the lowest
pressure necessary to get the desired results.
Higher pressure may not improve the spray pattern
and will cause premature tip and pump wear. See
Fig. 3.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your package, which could cause com-
ponent rupture and serious injury, never
exceed 100 psi (0.7 MPa, 7 bar) air input pressure
to the package. Also refer to the Technical Data
on page 18 and to your separate component manu-
als.
2. Use a full-open, full-close triggering action. Hold
the gun about 14 in. (350 mm) from and at right
angles to the work surface. Move the gun in a
straight stroke; do not swing the gun in an arc.
Practice to find the best length and speed of
stroke.
3. If adjusting the pressure does not give a good
spray pattern, relieve the pressure and try another
tip size. When more coverage is needed, use a
larger spray tip rather than increasing the fluid
pressure.
4. With the pump and lines primed, and with ade-
quate air pressure and volume supplied, the pump
will start and stop as you open and close the gun.
CAUTION
Do not allow the pump to run dry. It will quickly
accelerate to a high speed, causing damage. If your
pump is running too fast, stop it immediately and
check the fluid supply. If the container is empty and
air has been pumped into the lines, refill the con-
tainer and prime the pump and the lines, or flush and
leave it filled with a compatible solvent. Eliminate all
air from the fluid system.
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
For overnight shutdown, stop the pump at the bottom
of its stroke to prevent fluid from drying on the ex-
posed displacement rod and damaging the throat
packings. Shut off the agitator (39), if present. Relieve
the pressure.
Always flush the pump before the fluid dries on the
displacement rod. See Flushing on page 14.