Design and function
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5.5 Hollow discs
The hollow discs protected by shear bolts are serrated and level the soil behind
the tines. They level the ridges which are thrown up by the tines on the back row.
The hollow discs are also available with an automatic overload safety device.
5.6 Edge discs
The depth and pitch angle of the edge discs, protected by shear bolts, can be ad-
justed. They should retrieve the soil which has been thrown out. The edge discs
are also available with an automatic overload safety device.
5.7 Rollers
The rollers ensure reconsolidation and additional crumbling of the soil. During op-
eration on the land they bear the weight of the device if the device has been low-
ered for work and they ensure exact depth guiding. The weight of the rollers can
also support the feed behaviour of the device. The device can be fitted with differ-
ent roller types. At the time these operating instructions went to press the follow-
ing roller types were available: Tube bar rollers RSW 540, double rollers DRF
400/400 or DRR 400/400, blade rollers MSW 600.
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