Presto Conti Compact Series Operating And Maintenance Instructions Manual page 45

PRESTO
GmbH & Co. KG
Bad Laer
Adjusting the compaction pressure
hydraulically
The compaction pressure depends on the
counter-pressure of the material in the
channel. To achieve this counter-pressure,
the channel is narrowed by means of 4
hydraulic cylinders.
The counter-pressure of the material
depends on the following factors:
• Coefficient of friction of the channel
walls, which decreases slightly during the
plant running-in period;
• Coefficient of friction of the material to
be compacted, which varies highly (e.g. it
may be relatively high for cardboard
packaging and relatively low for plastic
films).
• The fill height in the fill in funnels by the
start of the press procedure. The fill in
funnels must be filled up to the upper
edge of the press body with material at
least, so that the channel discharge is
filled evenly.
6.4.2.1 Adjust bale length, twist
Adjusting bale length (8)
Factory adjustment: 20
Potential range of adjustment:
13 counting pulses = about 0.65m
50 counting pulses = about 2.5m
(One counting pulse corresponds to about
0.05m)
If you want an adjustment that differs from
the factory value, proceed as follows:
04/2012 6 - 11
The unit must be switched on
during these adjustment
works. Therefore ensure that
no persons are endangered
during your activities. Visibly
fix a sign in order to point to
the adjustment works. Any
other procedure will be
pointed out extra.