Setup; Purge System; Low Level Adjustment - Graco 25D117 Operation

Setup

Setup
The pump was tested with lightweight oil, which is left in
the fluid passages to protect parts. To avoid contaminat-
ing the fluid with oil, flush the pump with a compatible
solvent before use. See Purge System, step 2.

Purge System

Purging the system before initial use can prevent mate-
rial contamination, which may cause the material to fail
or perform poorly.
Purge the system before performing the initial mate-
rial 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.
Perform the following procedure to purge the system:
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
the operation instructions.
b. If the two substances are incompatible, perform
the remaining steps in this procedure to flush
the system at ambient temperature.
To avoid fire and explosion, always use fluids that are
chemically compatible with the equipment wetted
parts. See the Technical Data sections in the equip-
ment manuals.
16
NOTICE
This equipment should not be used with more than
one type of fluid due to potential compatibility issues
that could result in an unpredictable reaction. To pre-
vent equipment corrosion, Graco recommends using
new hoses when chemicals are changed, or care
must be taken to assure that all traces of one chemi-
cal are removed before introducing a second chemi-
cal.
3. Select a container of solvent that can eliminate the
factory-test oil from the system. If necessary, check
with Graco or the material supplier for a recom-
mended solvent.
4. Before purging, ensure the entire system and waste
container are properly grounded.
NOTE: Remove any dispense valve orifices before
purging. Reinstall after purging has been completed.
5. Purge the material through the system for approxi-
mately 1 to 2 minutes. See the Pump Fluid Purge Kit
Instructions manual for further instructions.
6. Remove the container if purge solvent was used.

Low Level Adjustment

Adjust the nut position along the low level switch bar (T)
as shown in F . 15.
IG
Nuts
T
F . 15: Low Level Machinery
IG
NOTICE
S
3A5354B