User's Manual

System Operation
58 313882C
Purging
There are 4 purging procedures in this manual:
• Purging Mixed Material (below)
• Purging Using Recipe 0 (page 59)
• Purging Fluid Supply System (page 59)
• Purging Sampling Valves and Tubes (page 61)
Use the criteria listed in each procedure to determine
which procedure to use.
Purging Mixed Material
There are times when you only want to purge the fluid
manifold, such as:
• end of potlife
• breaks in spraying that exceed the potlife
• overnight shutdown
• before servicing the fluid manifold assembly, hose or
gun.
In the first stage fluid manifold (2KS), solvent purges the
component B (catalyst, right) side of the mix manifold
and the inner tube of the integrator. Air purges the com-
ponent A (resin, left) side and the outer tube of the inte-
grator. This air/solvent chop purges the hose connecting
the 2KS static mixer to the 3KS fluid manifold.
In the second stage fluid manifold (3KS), solvent purges
the component C (right) side of the mix manifold and the
inner tube of the integrator. The air/solvent chop from
the 2KS purges the left side of the 3KS fluid manifold
and the outer tube of the 3KS integrator.
1. Press the Standby
key on the Booth Control.
2. Set the solvent supply pressure regulator at a pres-
sure high enough to completely purge the system in
a reasonable amount of time but low enough to
avoid splashing or an injection injury. Generally, a
setting of 100 psi (0.7 MPa, 7 bar) is sufficient.
3. If using a gun flush box, place the gun into the box
and close the lid. Press the Purge key on the
Booth Control. The purge sequence automatically
starts.
If the gun flush box is not used, trig-
ger the gun into a grounded metal
pail until the purge sequence is com-
plete.
When done purging, the Booth Control automati-
cally switches to Standby mode.
NOTE: After doing a purge, press the Mix
key once. The system will do a mixed material fill
sequence, then go to Standby. Press again to start
Mix mode.
4. If the system is not completely clean, repeat step 3.
NOTE: If necessary, adjust purge sequence so only
one cycle is required.
5. If spray tip was removed, reinstall it.
6. Adjust the solvent supply regulator back to its nor-
mal operating pressure.
Read Warnings, page 8. Follow the Grounding
instructions in your system Installation manual.
To avoid splashing fluid in the eyes, wear eye protec-
tion.
Trigger the gun to relieve pressure. If you are using a
high pressure gun, engage the trigger lock. Remove
spray tip and clean tip separately.
If using an electrostatic gun shut off the electrostatics
before flushing the gun.
Trigger the gun to relieve pressure. Engage trigger
lock.