Graco Therm-O-Flow 200, Инструкция-перечень запасных частей, Страница: 28 / 109

Operation
Operation Operation Operation
1. Turn the main power switch ON. The Graco logo
will display until communication and initialization
is complete.
2. Press the button. Verify the machine is
in “Warm Up” state, and that the temperatures
are increasing. Allow the system to reach the
“Ready” state before pumping. The pump will
automatically turn on, if autostart is enabled in
setup screens, when all the heat zones reach
their setpoint temperature.
Purge Purge Purge System System System
NOTICE NOTICE NOTICE
Purge the system before initial use and when
chemicals are changed to prevent material
contamination, which may cause the material to
fail or perform poorly. The system was factory-
tested using a light soluble oil, a soybean oil, or
some other oil as tagged. Flush the system to
avoid contaminating the material that has been
designated for initial material loading.
NOTICE NOTICE NOTICE
Use fluids that are chemically compatible with
the equipment wetted parts. See Technical
Specifications in all of the equipment manuals.
1. Select the material for the initial material load.
2. Verify whether the factory-test oil and the initial
material load are compatible:
a. If the two substances are compatible omit the
remaining steps in this procedure and refer
to
Load Material, page 29 .
b. If the two substances are incompatible
perform the remaining steps in this procedure
to flush the system.
3. Select a drum of material that can eliminate the
factory-test oil from the system. If necessary,
check with Graco or the material supplier for a
recommended solvent.
4. Before purging be sure the entire system
and waste drum are properly grounded. See
Grounding, page 20 .
5. Turn all heat zones’ setpoint temperature to the
material manufacturer’s recommended dispense
temperature, or a minimum of 100°F (37°C)
minimum.
Note
Remove any dispense valve orifices
before purging. Reinstall after purging
has been completed.
6. Purge the material through the system for
approximately 1 to 2 minutes.
7. Remove the drum if purge material was used.
See
Change Drums, page 36 .
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