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Operating Procedures
If there are any problems in getting started, refer to
the Troubleshooting section on page 16.
Dry System Checkout
This is an initial checkout to determine if the setup has
been properly completed. The dry checkout is con-
ducted without any material in the system. Refer to the
illustrations above or below.
1. Turn on the controller and the air supply.
2. Set the air pressure to 70 psi (4.8 bar) on the sys-
tem pressure gauge.
3. In the normal "ready" state the Piston (4) is seated
in the Needle Seat (1), sealing the dispense valve.
For this test, loosen the Nut (2) and remove the
Needle Block (23) and Needle Seat (1) so that you
can visually verify that the Piston (4) rises inside the
Valve Sleeve (3).
4. Momentarily press the dispense valve cycling con-
trol switch.
5. The controller applies air to the Open port of the dis-
pense valve, the Piston (4) lifts. After the time delay
the controller applies air to the Close port causing
the Piston (4) to move down. Visually verify the pis-
ton movement. When this happens, the system is
correctly installed.
6. Reinstall the Needle Block (23) and Needle Seat (1)
with the Nut (2). Anytime the Needle Seat (1) is
replaced, you must loosen the Hex Nut (20) and
tighten the Adjustment Screw (21) into the Valve
Body (5) until it seats. Then back off the Adjustment
Screw (21) approximately 2 turns and tighten the
Hex Nut (20). This step is required for proper adjust-
ment of the Piston (4).
Material Loading
Material is supplied from a pressure vessel or pump with
enough pressure to cause a proper rate of flow from the
dispense needle.
332094C
NOTE: The material pressure will vary depending on the
application.
•
Do not exceed 100 psi (6.9 bar) pressure on the
operating system. Do not exceed 1200 psi (82.7
bar) material inlet pressure. Higher pressures
may cause serious injury or equipment damage.
•
To reduce the risk of injury or equipment damage,
do not apply either operating or reservoir air pres-
sure to the product unless all screws are in place
and properly tightened and all material supply con-
nections are properly in place and tightened. Fas-
ten all air connections securely.
Attach the air line to the regulator and set the air pres-
sure control to the setting required for the application.
NOTE: When using a remote reservoir, the delivery tub-
ing and fittings must be compatible with the material
being dispensed and capable of withstanding the dis-
pensing pressure.
NOTE: The minimum recommended pneumatic operat-
ing system pressure is 70 psi (4.8 bar) clean/dry air.
Wet System Checkout
Using the purge cycle on the air supply controller, run
the material through the material supply line and valve
until a smooth material flow is observed through the dis-
pense needle.
After the purge cycle has been completed, set the air
supply controller to the manual cycle mode and cycle
the dispense valve several times.
Operating Procedures
11
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