Manual

20 Maintenance and Service
To remove the Nozzle:
1. Power up the dispensing system.
2. If fluid is present in the reservoir or the syringe, obtain a suitable fluid collection container and
disposable towels for draining of fluid.
3. Use the position controls to manually move the DispenseJet so it is directly over the purge
station (or click on
PURGE from the Fluidmove software) to purge the solvent from the fluid lines.
 Refer to the Fluidmove User Guide or Online Help for instructions
4. Manually activate the solenoid valve by pressing the push-button underneath the solenoid valve
to flush out all fluid in the fluid system, lines, syringe, or reservoir.
5. Using the supplied torque wrench, carefully remove the standard nozzle nut with the co-axial air
nozzle. If attached, press up on the orange-colored ring on the co-axial solenoid valve and gently
pull on the tubing until it is removed.
To clean the Nozzle:
1. Place the nozzle in the container with a small amount of solvent.
2. Carefully insert a cleaning-wire of correct size into the nozzle and gently agitate the interior
surface.
3. Using a dry air gun, carefully blow air through the nozzle to clear fluid from the interior and into a
disposable towel.
4. Submerge the nozzle in an ultrasonic cleaning system to remove any remaining residue.
5. Using a magnifier or microscope, inspect the nozzle interior for residue and scratches. If worn,
replace it. If clean and undamaged, proceed with cleaning the nozzle from the bottom. Otherwise
repeat Steps 1 through 4.
To clean the Nozzle Nut:
1. Remove the standard nozzle nut and the co-axial air nozzle nut from the DispenseJet as a unit, if
attached.
2. Disconnect the co-axial air tubing.
3. Remove the co-axial air nozzle nut and the nozzle from the standard nozzle nut.
4. Remove and discard the Teflon gasket.
5. Using a nozzle brush, an appropriate solvent, and an ultra-sonic cleaning unit, clean and inspect
the removed parts. Repeat cleaning or replace the co-axial nozzle nut as appropriate.
To Reinstall the Nozzle:
Follow the “Changing Nozzles” instructions in the Operation section. Obtain a new Teflon gasket for the
nozzle.

NOTE If you are not going to use the cleaned nozzles right away, store the nozzles in the protective
case for the DispenseJet.