Vacuum De-Gas And Vacuum Manual Refill - Graco HFR Setup And Operation Manual

Vacuum De-gas and Vacuum
Manual Refill
NOTE: This procedure is for assemblies with a vacuum
tree manifold, agitator, and auto-refill.
1. Press the Select Operating Mode button (
repeatedly to select Shot, Sequence, or Operator
(Manual) mode.
2. Close the shut-off ball valves at the base of the
tanks.
3. If the tank lid requires a desiccant dryer or nitrogen
pump installed, install one into the top ball valve of
the vacuum tree manifold).
4. Close the top ball valve of the vacuum tree mani
fold.
5. Attach vacuum pump to the bottom ball valve of the
vacuum tree manifold then open the ball valve.
6. Turn on the vacuum pump.
7. Turn on agitator.
8. Select Manual Refill mode. See operation manual
referenced at the beginning of this manual for more
information.
9. Press the appropriate Auto-Refill Tank Select button
or buttons ( and/or
refill.
10. If necessary, press the Abort/Cancel button (
to cancel auto-refill.
If an auto-refill is aborted or times out, the software
will not initiate a new auto-refill until a manually initi
ated auto-refill has completed. To complete a man
ually initiated auto-refill after an aborted or timed
out auto-refill, restart at step 2.
NOTICE
If an auto-refill is stopped and not restarted as
described in the previous note, the pumps may be
run dry and chemical crossover at the valve may
occur.
11. Continue to de-gas for sufficient time to de-gas the
material.
313997ZAA
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) to select the tanks to
)
12. Close bottom ball valve of the vacuum tree mani
fold).
13. Turn off the vacuum pump.
14. Open the top ball valve of the vacuum tree manifold.
NOTICE
Operating the tank after the vacuum de-gas proce
dure without the top ball valve open will result in
pump cavitation, off-ratio conditions, and possible
collapse of the tank.
15. Open the shutoff valves at the base of the tanks.
Setup
45