12
308692
Operation
Install the Spray Tip
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
on page 10.
Relieve the pressure. Install the spray tip and tip guard
as explained in your separate gun manual, supplied.
The spray tip shapes the fluid into a fan pattern. The
orifice size determines the flow rate, and the orifice
shape determines the width of the fan pattern.
Adjust the Spray Pattern
WARNING
FIRE AND EXPLOSION HAZARD
Do not
plug in or unplug the power cord
in any area containing flammable fluids
or fumes, to avoid fire or explosion
resulting in serious injury.
1.
Start the pump. Plug in the heater power cord.
Turn the 3-way valve to CIRC.
2.
Set the heater control to a trial point (4 or 5).
3.
Circulate fluid through the pump for at least 10
minutes, at very low pressure. Check the tempera-
ture on the heater thermometer.
4.
Adjust the fluid pressure and temperature to the
lowest settings necessary to get the desired re-
sults. Use the air regulator (F) to adjust the pump
speed and fluid pressure until the spray is
completely atomized. Refer to the back pressure
valve and heater manuals (supplied) for adjust-
ment procedures. Higher pressures and tempera-
tures may not improve the spray pattern and will
cause premature component wear.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your system, which could cause compo-
nent rupture and serious injury,
never
exceed the specified Maximum Air Input Pressure
(see the
Technical Data,
on page 22).
Heat causes fluid to expand. If the heated fluid is
trapped with nowhere to expand, it can cause
component rupture.
Be sure
to keep the heated
fluid circulating (turn the 3-way valve to CIRC).
Do
not
install a fluid shutoff device between the heater
and the gun.
5.
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.
6.
If adjusting the pressure and temperature 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.
7.
With the pump and lines primed, and with ade-
quate volume supplied, the pump will continue to
cycle as long as air is supplied and the back
pressure regulator is open.
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.
Содержание 308692N
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