Cleaning The Jet; Solvent And Diaphragm Compatibility; Recycling And Disposal; End Of Product Life - Graco Advanjet 26B970 Setup And Operation Manual

Jet valve
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Cleaning the Jet

Material inside the applicator can be very hot. To
avoid severe burns, wear protective gloves.
NOTICE
Fluids that could damage the Jet's wetted parts (17-4
Stainless Steel, Tungsten Carbide, Ceramic, FKM,
FFKM, and Silicone) should not be dispensed or used
for cleaning. See Solvent and Diaphragm
Compatibility on page 13 for details.
Not recommended are pre-mixed 2-part adhesives
with a short pot life as these can harden in the nozzle
plate (AA).
Cyanoacrylates are not compatible.
The nozzle plate (AA) and diaphragm (AH) must be
clean and free of debris before installing onto the Jet. If
the nozzle plate (AA) is not clean, it could affect the
dispensing quality, or in the worst case, could plug the
nozzle orifice (AE).
1. With appropriate hand protection in place, remove
the nozzle plate (AA) using a 3 mm torque allen
wrench. If the diaphragm (AH) has become stuck to
the heater block (C), use a probe or an appropriate
tool to carefully remove it.
2. Remove the diaphragm (AH) from the nozzle (AE).
C
AH
F
. 10
IG
3A8813A
3. Manually clean the diaphragm ((AH) with a cotton
swab or an agitating brush that has been saturated
with 91% isopropyl alcohol.
4. When the nozzle (AE) has cooled, set it in a
container filled with isopropanol or acetone and
place into an ultrasonic cleaner for 30 minutes.
5. Remove the nozzle (AE) from the ultrasonic cleaner
and hand clean using appropriately sized nozzle
cleaning wires and micro drills. Using a microscope
or eye loupe, visually inspect the nozzle (AE) to
verify cleanliness. The nozzle (AE) must be clean to
ensure process success.
Solvent and Diaphragm
Compatibility
NOTE: See Diaphragm on page 18 for a list of all
available diaphragms.
Diaphragms are available in three different materials:
silicone, FKM (fluoroelastomers), and FFKM
(perfluoroelastomers). In general, if the diaphragm
material is incompatible with a solvent, the diaphragm
will exhibit slight swelling around the metal insert. If
swelling occurs, the performance of the Jet will be
adversely affected.
Use the following table as a guide for selecting an
appropriate cleaning solvent.
Chemical
Acetone
Ethanol
Isopropanol
Methyl Ethyl Ketone
Toluene
Xylene

Recycling and Disposal

End of Product Life

At the end of a product's useful life, recycle it in a
responsible manner.
Cleaning the Jet
Silicone
FKM
FFKM
13

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