Repair 8-13Part 1602966−05 2015 Nordson Corporation10. Turn Off the Purge Control switch.11. Adjust the purge air to 5.5 bar (80 psi).12. Select Internal Gun Purge with the Purge Control switch. The lances willbe clamped and the purge air will turn on.13. Verify that the lances and purge manifolds align properly, and that littleor no air escapes from between them while the guns are being purged.If air leaks from the seals, loosen the latch pawl screws and move thepawls down one notch for a tighter clamp force. Refer to page 8-4 forthe pawl adjustment procedure.Feed Hopper Fluidizing Plate Replacement75-lb Feed Hopper Fluidizing Plate Replacement1. Empty the hopper and vacuum as much powder as possible out of thehopper.2. See Figure 8-11. Remove the screws (5), flat washers (6), and nuts (7)securing the body (1) to the plenum (4). Lift the body off the plenum.3. Remove and discard the old fluidizing plate (2) and U-gasket (3).4. Vacuum the inside of the plenum and clean the body and plenumflanges.5. Install the U-gasket around the outside edge of the new fluidizing plate.NOTE: Make sure that the smooth side of the new fluidizing plate is facingup.6. Re-assemble the body, fluidizing plate, and plenum with the screws,washers, and nuts.CAUTION: Do not overtighten the nylon screws. Overtightening the screwswill result in stripped threads and possible air or powder leaks.
