Operation
5-5
Part 1602966−05
E 2015 Nordson Corporation
3. Make sure compressed air is being supplied to the feed center at above
5.5 bar (80 psi) and that air pressures are adjusted properly. See Figure
2-8 for regulator locations.
Table 5-1 Feed Center Air Pressure Settings
Air Pressure Typical Setting
Lance Fluidizing (typical) 0.3 bar (5 psi) 0.03 Mpa
Feed Hopper Fluidizing (typical) 0.3 bar (5 psi) 0.03 Mpa
Purge 5.5 bar (80 psi) 0.55 Mpa
Purge Clamp 3.4−4.1 bar (50−60 psi)
0.34−0.41 Mpa
Lance Cylinder:
Up, 1 Lance
Up, 2 Lances
Up, 3 Lances
Down
4.1 bar (60 psi) 0.41 Mpa
4.8 bar (70 psi) 0.48 Mpa
5.5 bar (80 psi) 0.55 Mpa
3.4 bar (50 psi) 0.34 Mpa
4. Move a feed hopper or box into the feed center, and position it below the
lance assembly, adjusting the table stops as necessary. Select Hopper
or Box with the Powder Source Selector switch on the control panel.
5. If using a feed hopper:
a. Connect the fluidizing tubing to the fitting on the feed hopper
plenum.
b. Fill the hopper 2/3 full of powder. Do not overfill; the powder
expands when fluidizing air is turned on.
c. Gradually increase the feed hopper fluidizing air pressure until the
powder is gently boiling.
d. Lower the lance assembly into the hopper with the Lance Control
switch. The lance stops automatically above the fluidizing plate.
6. If using a powder box:
a. Turn on the vibratory table.
b. Lower the lance assembly into the box with the Lance Control
Selector switch (left for down) until the fluidizing bars and end of the
level sensor are covered by powder.
c. Gradually increase the lance fluidizing air pressure until the powder
is gently boiling.
7. Make sure the sieve discharge pan is positioned so that the discharge
tube directs the screened powder into the feed hopper or box. Loosen
the deck clamps to rotate the pan, then re-clamp the deck.
8. If used, make sure the reclaim and virgin powder transfer hoses are
connected to the tubing stubs on the sieve deck. Turn on the reclaim
transfer pump and enable the virgin transfer pump.
9. Turn on the sieve.
10. Turn on the spray guns and start spraying powder. Make sure
everything is working correctly before starting production.
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