Asymtek Heli-Flow DV-8000 Series Owner's Manual page 32

8. In the Valve Forward dialog box click the radio button next to Forward and enter a duration of
120 seconds (2 minutes).
The 120-second Valve Forward duration is an estimate of the time necessary for the
production-run fluid to flow completely through the pump and be dispensed in a steady,
unbroken stream. The preferred duration may vary.
Pump motor speed should be at your production-run setting.
9. Click on the Forward button to start the pump.
10. After the pump has stopped, check for drooling.
"Drooling" means that fluid continues to drip from the tip of the needle when the pump is
OFF. If drooling occurs, it means that there is air in the fluid path, or the system air pressure
is set too high.
11. If there is no drooling present, proceed to Step 12. If the fluid is still drooling, repeat Steps 8
through 10 until no drooling occurs.
There should be no drooling of fluid from the needle after the pump has stopped. If drooling
is persistent, refer to the
12. Open the dispensing system door/hatch, replace the purge cup if necessary, and replace the
purge station lid.
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Figure 4-7 FmNT Valve Forward Screens
Troubleshooting section.
Operation