Purging
◆
Purging Mixed Material
44
310633C
Purging
There are 4 purging procedures in this manual:
•
Purging Mixed Material (below)
•
•
Purging Fluid Supply System (page 46)
•
Purging Sampling Valves and Tubes (page 48)
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.
Solvent purges the component B (catalyst, right) side of
the mix manifold and the inner tube of the integrator. Air
purges the component A (resin, left) side and the outer
tube of the integrator.
1.
Press Standby
on the Operator Station.
2.
3.
4.
Set the solvent supply pressure regulator at a pres-
sure high enough to thoroughly 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.
5.
If using a gun flush box, place the gun into the box.
Press Purge
key on the Operator Station. 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
complete.
When done purging, the Operator Station automat-
ically switches to Standby mode.
6.
If the system is not completely clean, repeat step 5.
7.
8.
If spray tip was removed, re-install it.
9.
Adjust the solvent supply regulator back to its nor-
mal operating pressure.
WARNING
Read warnings, page 6. Follow Grounding instruc-
tions, page 23.
WARNING
To avoid splashing fluid in the eyes, wear eye protec-
tion.
WARNING
Follow Pressure Relief Procedure, page 38. Engage
trigger lock. If you are using a high pressure gun,
remove spray tip and clean tip separately.
WARNING
If using an electrostatic gun with a gun flush box, shut
off the electrostatics before placing the gun in the box.
If necessary, adjust purge sequence so only one
cycle is required.
WARNING
Follow Pressure Relief Procedure, page 38. Engage
trigger lock.
page 24
Summary of Contents for ProMix II
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