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Operation
Using the Recirculation Feature
See Fig. 1
The recirculation tube drains unused fluid back into the
fluid container, ensuring an even flow at the gun.
Recirculation also provides gentle fluid agitation. To
recirculate fluid, open the recirculation valve (J) while
you are spraying. To stop recirculation, close the valve.
When to Shut Down the System
Shut down the system at the end of the work shift and
before checking, adjusting, cleaning, or repairing the
system. Always relieve the pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Flushing the System
Flush the system at the following times:
D Before the first-time use
D When changing colors
D Before fluid can dry or settle out in a dormant
system.
D Before storing the system
Flush the system as follows (See Fig. 1):
1. Relieve the pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
2. Remove the gun air cap before flushing, and clean
it separately.
3. Place the suction tube into a grounded metal pail
of compatible solvent.
4. Make sure the air regulators (E and F) and
bleed-type master air valve (K) are closed. Open
the recirculating valve (J).
NOTE: The gun air regulator (F) always stays
closed during flushing.
5. Open the bleed-type master air valve (K).
6. Slowly open the pump air regulator (E) until the
pump starts. When fluid is flowing through the
recirculating valve (J), close the valve. The pump
will stall against pressure.
7. Hold the gun against a grounded metal waste pail,
and fully trigger the gun. If your system has a fluid
pressure regulator (G), slowly open it until the fluid
flows smoothly.
8. When solvent appears, release the gun trigger.
9. For a first-time flush
: trigger the gun and flush with
solvent for 30 seconds.
For flushing after spraying fluid
: trigger the gun
and flush with solvent until the system is
thoroughly cleaned. Open the recirculating valve
(J) slightly to clean the recirculation tube. Then
close it.
10. Repeat the procedure with clean solvent, if
needed.
11. Lift the fluid intake tube from the fluid supply, and
trigger the gun and run the pump until air comes
from the gun.
12. Relieve the pressure.
The system is now ready to be stored or primed with
another fluid. See Priming the System on page 7.