94
P12 /P15 /P18
707769-27-0
11. Maintenance 11.
Maintenance program P45 with emission-free still rake out (Optional Equipment):
If you have an economy filter, you can only perform the emission-free still rake out if you
have not precoated with filter powder.
With each distillation pump out process, the sludge pump pumps out the entire contents of the
still.
The number 8 appears in the display when the maintenance program P45 starts.
After you press the START button again, the emission-free still rake out proceeds as follows:
The residues are heated up.
After a predefined temperature has been reached,
valve 142 opens and the sludge pump pumps over the
residues. After the predefined pump-out time has
completed, valve 142 closes and valves 143 and
143.1 open. The sludge pump moves the residues
from the still into the disposal vessel.
The solvent-carrying air that is forced out of the
vessel is directed back into the still through valve
143.1 (gas displacement line).
Then the sludge pump, nozzle and pipelines are
rinsed with solvent. The last step of the still
maintenance is drying the cage and reduction or
adsorption (on machines with Slimsorba).
When the liquid level in the disposal vessel reaches
the sensor-controlled overfill preventer, the sludge
pump stops automatically and all valves of the still
rake out system close. An alarm display appears
and the signal sounds. After you delete the signal
by pressing "C", replace the full disposal vessel
with an empty one. Then you can start the
maintenance program P45 and continue with
the emission-free still rake out. Ball valve (1)
is always open; close it only when repairing the pump.
Warning: Before starting the emission-free disposal of destillation
open the ball valve between the valve Y 143 and vat and make sure
that the vat is connected.
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