Nordson kinetix, Manual

Page: 31 / 76

Maintenance
5-3
Part 334598G03
E
2008 Nordson Corporation
Periodically
Periodically perform the following maintenance procedures on the spray
gun. The frequency of these procedures will vary depending on the
application and coating material being used.
WARNING: Shut off the gun control unit and ground the spray gun
electrode to remove any residual charge. Failure to observe this warning
could result in personal injury.
WARNING: Shut off the fluid-delivery system and relieve the fluid pressure
in the system. Failure to observe this warning could result in an injection
injury.
CAUTION: Use a non-conductive solvent compatible with your coating
material. Cleaning with conductive solvents can result in carbon tracking
and loss of kV.
CAUTION: Avoid cleaning the spray gun with pressurized solvents.
Spraying with pressurized solvents can force the solvent into spray gun
cavities, potentially damaging spray gun components.
System Flushing
1. Relieve system fluid pressure.
2. Turn off the gun control unit and ground the spray gun electrode to
remove any residual charge.
3. Point the spray gun down into a grounded waste container. Trigger the
spray gun to drain the spray gun and hose(s). Lock the trigger.
4. Remove the retaining ring, air cap, nozzle, PTFE retaining washer, and
gasket or gasket with restrictor.
5. Turn on the solvent supply and adjust it to the lowest possible pressure.
6. Unlock the trigger and trigger the spray gun into a suitably grounded
container. Allow solvent to flow until it runs clear.
7. Turn off the solvent supply and relieve the pressure. Disconnect the
fluid hose(s).
8. Inspect the air exhaust muffler to make sure that it is clean and permits
the free flow of air. If air does not flow freely, remove the muffler and
clean it with solvent.