Operating Manual for FAN Press Screw Separator 1.2/3.2/3.3/5.2
The reaction time before each setting change takes several minutes, meaning that the
effect of any change can only be determined after this time.
For this reason, always allow enough time after making a change and only make
changes in small steps!
Before the initial start-up and after prolonged downtime, the separator should be flooded
before switching it on by starting the pump briefly in order to prevent possible damage
from dry running.
If no solid cake is present in the discharge area, it must be en-
sured that the discharge flaps rest fully against the mouthpiece.
After switching on the separator, start the pump only briefly - for
about 1 to 2 seconds, just long enough for the supply line and
separator to be filled. Then wait until liquid phase no longer runs
out and repeat the process.
Depending on the pumped medium, a solid cake will begin to form
after about 5 repetitions and push the cap away from the mouth-
piece.
Alternatively an artificial cake can be created.
To do this, place a cake formation aid made of foam rubber that
can be purchased as an option from FAN behind the flaps or firmly
pack by hand some other fibrous material such as hay, stray, si-
lage, etc. behind the flaps. This starter cake is replaced as the
separation process continues by a newly formed solid cake made
of the separated medium, pressing out the starter cake. A starter
cake should be employed when the solid cake has been removed
from the machine for cleaning, inspection or maintenance purpos-
es. If the machine is not operated for a prolonged period of time
such that the cake has either hardened, frozen or become very
soft, a starter cake is also required to restart the separator.
To create a starter cake of paper or similar material, check before beginning work that the switch cab-
inet is disconnected from the electrical supply and is not energized.
Then do as follows:
1. Remove the 4 weights from the arms of the output regulator in order to open the regulator
flaps, then secure the flaps.
2. Insert the starter cake in the form of the cake formation aid made of foam rubber.
3. Or insert a starter cake of damp paper or similar material into the mouthpiece of the separator
up to the ends of the auger blade.
4. To be certain that the cake forms a sufficient seal against the liquid, this should be evenly com-
pressed with a piece of round wood, for example.
5. Place one weight in each middle position on the output regulator arms. The pressure flaps of
the output regulator must rest against the starter cake such that pressure is applied to the cake
when the separator is started up. As a suitable solid cake is formed, the output regulator arms
will slowly move upwards
The pump can then be switched on without pauses.
Fig. 7-3 Cake formation aid
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