
7
Operation
Refer to assembly drawings 112-5825_2 for part reference numbers.
Air Section
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Plumb up the valve as outlined above in the Setup procedure.
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Regulate the air pressure operating the valve between 60-100psi.
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Making sure that the valve is not aimed toward anyone, cycle the valve several times.
Note: When the valve is cycling, the piston should be heard hitting the micrometer adjustment (10), and
the needle (1) should be seen going up and down in the center.
If the valve is not cycling properly, refer to the Troubleshooting section.
Fluid Section
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If applied, ensure fluid pressure is removed from valve.
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Apply air pressure to the air section of the valve to set the cylinder in the refill position, so the
needle (1) is retracted from the seat (8).
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Using an adjustable wrench, unthread and remove the outlet check valve housing (6) from the
fluid section (7).
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Holding the outlet check valve housing (6) upright with tip down, fill the well of this housing with
the fluid that is being dispensed. (A compatible solvent can also be used)
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Keeping the outlet check valve housing (6) in the upright position, thread the assembly back onto
the fluid section (7) and tighten with an adjustable wrench.
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Pressurize the material to be dispensed between 10-20 psi.
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To bleed the fluid section, use a 3/32" Hex key to loosen the set screw (17) of the bleed port
located on the fluid section (7), being careful not to fully remove the screw.
Note: If fluid does not flow out of the bleed port, slowly increase material pressure until fluid and air
bubbles are seen or wiggle the set screw with the allen key
Note: For purging process only, do not exceed 30psi.
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Once fluid begins to flow, retighten the set screw (17).
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Open the stroke on the valve to full by turning the micrometer adjustment (10) counter clockwise
until it reaches its furthest point, about #3 on the dial (D).
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Cycle the valve several times until the fluid can be seen dispensing from the tip with some force
behind it and no air bubbles can be seen in the fluid.
•
If possible turn the valve vertical so the dispense tip is pointing up in the air. Note: Hold a cloth
over the dispense tip to catch fluid flow from the tip.
•
Continue to cycle the valve until all air bubbles cease to dispense from the tip and a steady flow of
material can be seen with each shot.
Note: If material is not dispensing properly, repeat the steps to loosen the set screw then flip the valve
vertical with the tip pointing in the air and cycle until all air is removed.