Krone Comprima V 180 - Notes on Operation; Checking the Tension of the Inserted Film

8 Operation
8.13 Net and chamber film wrapping
86
Comprima V 180
Original Operating Instructions 150001053_00_en
Pre-settings for chamber film wrapping:
• The tension lever(12) must not touch the wrapping material roll(1). To do this, the tension
lever(12) must be locked, refer to page152.
• The conical roller(3) must be released to ensure that it rotates during chamber film
wrapping, refer to page153.
ü The machine is shut down and safeguarded, refer to page25.
ü The roll holder has been swivelled forwards.
ü The conical roller(3) has been locked or released depending on the set net or chamber film
wrapping, refer to page153.
ü The tension lever(12) has been locked or released depending on the set net or chamber
film wrapping, refer to page152.
ü The wrapping material brake has been set to net or chamber film wrapping, refer to
page151.
 Unwind a section of the wrapping material(11) from the wrapping material roll(1) and guide
it over the deflection roll(2) and under the deflection roll on the cross tube(10).
 Place the wrapping material(11) over the conical roller(3).
 Place the wrapping material(11) under the spreading roll(4) on the retaining sheet(6).
 Using the supplied feed plate(7), push the wrapping material(11) between the retaining
sheet(6) and the synthetic cloth (5).
 Ensure that the wrapping material(11) is spread over an area(8) of at least 2feed strips.
 Ensure that the wrapping material(11) projects over the edge of the retaining sheet(6) by at
least X=250mm.
To check the position of the feed rocker arm, refer to page157.
To set the number of net layers, refer to page118.
To set the number of film layers, refer to page119.
8.13.3 Notes on operation
• When chamber film wrapping starts, it is necessary to continue collecting crops until the film
is caught by the round bale and the film roll is turning.
• If possible, for initial operation, use a complete net roll first and tie the round bales with net.
This procedure can be used to remove any sharp edges or paint residue beforehand.
• KRONE recommends not to use chamber film wrapping for straw bales. There is a risk of
condensation forming, resulting in mould.
• Tie the round bale with the appropriate film tension, refer to page86.
• KRONE recommends 3.5-4 film layers to ensure optimum chamber film wrapping, refer to
page119. The dryer the crops, the more film layers will be required.
• A machine with chamber film wrapping can still tie round bales with net. In doing so, ensure
that the the conical roller and the tension lever are set differently.
• Setting the locking of the conical roller: refer to page153
• Locking/releasing tension lever: refer to page152
8.13.4 Checking the tension of the inserted film
The round bale must be tied with the appropriate film tension. KRONE recommends a pre-
tension of 5-15%. You can check whether this pre-tension of 5-15% has been obtained as
follows.