Graco Therm-O-Flow Plus, Instructions Manual

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Installation
Flushing the System
Flushing the system before its initial use can prevent
material contamination, which may cause the material
to fail or perform poorly.
CAUTION
Flush the system before performing the initial
material loading procedure. The system was fac-
tory-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.
To flush the system, perform the following procedure:
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
Graco form 309180, Therm–O–Flow Plus
Installation and Operation Guide, for start up
and operation instructions.
b. If the two substances are incompatible, per-
form the remaining steps in this procedure to
flush the system at ambient temperature.
WARNING
Use fluids and solvents that are chemically compat-
ible with the equipment wetted parts. See the
Technical Data sections of all the equipment
manuals. Always read the material manufacturer’s
literature before using fluid or solvent in this pump.
Provide fresh air ventilation to avoid the buildup of
flammable fumes from solvent or material.
3. Select a drum containing solvent that can dissolve,
clean, and eliminate the factory-test oil from the
system. If necessary, check with Graco or the ma-
terial supplier for a recommended solvent.
4. Before flushing, be sure the entire system and
flushing drums are properly grounded. Refer to
Ground The System, on page 13.
5. Turn all heat zones to OFF. This will allow air to
the air motor, with no alarms, in a cold state.
6. Refer to Graco form 309180, Therm–O–Flow Plus
Installation and Operation Guide, for instructions
on how to load the drum containing the solvent.
7. Flush the solvent through the system for approxi-
mately 1 to 2 minutes.
8. Remove the drum containing the solvent.