30
Operation
10. If there is no drooling present, proceed to Step 11. If drooling persists, refer to the
Troubleshooting
section.
11. When drooling has stopped, open the dispensing system door/hatch, and perform the following:
a. Remove the syringe of conditioning fluid and install a syringe of solder paste.
b. Remove and set aside the needle from the dispensing cartridge.
c. If the purge cup is full, remove it and replace with a clean purge cup.
12. Close the dispensing system door/hatch.
13. Set the pump motor speed to a slow rate (0.5 to 1.0 for M-600 Series Systems, 100 for M-2000
Series Systems, 10 percent on X-1000 Series Systems) to prevent cold welding of the solder
paste during the priming operation.
14. Set the Valve Forward duration to 180 to 300 seconds (3 to 5 minutes) and click on the
Forward
button to start the pump.
!
The Valve Forward duration above is an estimate of the time necessary for the solder paste
to completely purge the conditioning fluid from the pump.
15. Repeat Step 15 as needed until you can see that all conditioning fluid has been purged into the
purge cup.
!
There should be no drooling of solder paste from the pump after it has stopped.
16. Open the dispensing system door/hatch and clean any residual solder paste from the end of the
cartridge using a clean cloth and manufacturer-recommended solvent.
17. Reinstall the needle removed in Step 12 and close the dispensing system door/hatch.
!
The needle should still be coated inside with conditioning fluid.
18. Set the Valve Forward duration to 60 seconds (1 minute) minimum and click on the
Forward
button to start the pump. Pump motor speed should still be at the slow rate set in Step 13.
!
The Valve Forward duration above is an estimate of the time necessary for the solder paste
to flow through the needle and into the purge cup.
19. Reset the pump motor speed to the rate recommended for your dispensing application.
!
If the needle becomes plugged during the first few minutes of dispensing, do not clean the
dispensing cartridge. Remove the needle and repeat Steps 14 through 19. Make sure the
needle is clean before reattaching it.
Valve Offsets
A Valve Offsets routine in Fluidmove must be performed after any of the following:
•
Initial Valve setup
•
Valve
change
•
Height Sensor change or adjustment
This screen-prompted routine identifies and records a Safe Z-Height for dispensing head travel, the XYZ
locations of the Purge Station and Weigh Station (if present), needle, and the substrate height. It also
calibrates the Camera-to-Needle and Needle-to-Height Sensor Probe offsets, if these accessories are
installed on the dispensing system. Refer to the
Fluidmove User Guide
or
Online Help
for additional
information.