Krone Comprima F 125, Оригинальная инструкция по эксплуатации, Страница: 168 / 430

Operation
168
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11.19.7 Checking the Stretching of the Inserted Film
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The round bales must be tied with the suitable film stretch level. KRONE recommends
prestretching of between 5–15%. Whether prestretching of between 5–15% has been achieved
can be checked as follows.
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COM00405_1
X
1
2
Fig. 139
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Prerequisites:
– A round bale is pressed with film tying and put down on the field.
– The machine is shut down and safeguarded, refer to chapter Safety, Safety Routines,
“Shutting Down and Safeguarding the Machine”.
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• With an overhead marker, draw two horizontal lines (1) on the film with a distance
dimension of X=100 mm.
• Cut out the section (2) around the two lines you have drawn. Make sure to cut out all film
layers.
• Allow all film layers of the cut-out section (2) to rest for at least 3 minutes.
• Measure the distance dimension X between the two lines you have drawn (1).
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If the distance X is between 86 and 95 mm, prestretching has been set correctly.
Measured value X Prestretching Valuation
< 86 mm > 15% Prestretching is too strong. Reduce the
brake force at the film brake, see chapter
Settings – "Setting the film brake".
86 mm 15% Correct
95 mm 5% Correct
> 95 mm < 5% Prestretching is too weak. Increase the
brake force at the film brake, see chapter
Settings – "Setting the film brake".
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Note
KRONE recommends 3.5 – 4 film layers for optimum chamber film wrapping. The minimum
required film layers depend on the condition of the crops.
With round bales whose diameter measures more than 130 cm and/or very dry or very wet
crops, KRONE recommends at least one additional film layer.
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