2 choices of inter-body clearance

It is essential to choose your plough according to the conditions of use and in particular according to the cultivation system being followed. In order to best adapt to your working conditions, it is possible to optimise the clearance between points. To do this, you should take into account :

• whether or not the volume of residue is large
• whether straw is removed from the field or not
• if the plant cover is previously crushed or destroyed.

2 clearances are available on MASTER 153 mounted ploughs:

• in 4 and 5 furrows 102 cm: this clearance is recommended for destroying live plant cover or for burying a bed of previously shredded residue. In this configuration, the soil flow circulates easily between 2 bodies while maintaining an optimal position of the skimmers. The quality of ploughing is maintained despite the high presence of residues.
• in 5 and 6 furrows 96 cm: This is the best compromise to maximise the passage capacity in the presence of abundant residues while maintaining working comfort with a plough that is easy to manoeuvre.

2 cutting width systems

KUHN offers 2 cutting width systems: multiple or variable.

• The MULTI-MASTER 153 ploughs offer the possibility to work at different widths: 35, 40 and 45 cm (14′, 16′ or 18′). Changing widths is done by mechanical adjustment, simply by changing the bolts in the clevises to orientate the ages.
  The multiple width is ideal for farmers who have constant working conditions with homogeneous soil, a uniform plot with small hills and consistent quantities of residue.
  The VARI-MASTER 153 ploughs allow instant adaptation of the cutting width to the conditions. Changing the cutting width is made using the variable hydraulic adjustment from the operator’s seat. The special feature of KUHN VARI-MASTER 153 mounted ploughs is the full integration of the variable width system into the beam for optimum protection of the mechanism. The cutting width can vary from 30 to 50 cm (12′ to 20′) depending on the body clearance of your plough.
  The VARI-MASTER 153 ploughs are ideally suited to farmers and contractors with variable ploughing conditions: available tractive power, uneven ground, lack of adherence, desired ploughing profile, amount of residue to be buried, shape of the field, heterogeneous soil etc.

2 high-performance safety devices

MASTER 153 ploughs can be equipped with 2 types of safety: Traction bolt safety Safe-T or NSH hydraulic non stop safety.

• The Traction bolt safety device Safe-T ensures a clear breakage by traction following a force at the point of the share of 4 000 kg and thus avoids frequent stressing of the safety device. The ploughing depth remains the same after many trips: no wear on the system. The Safe-T safety is an economical solution for a lighter plough than NSH. It is recommended for heavy soil without stones.
• The Non-Stop Hydraulic safety system can be adapted to all working conditions. The pressure on the plough body varies according to the depth, speed and width of the work, the condition and nature of the soil…. It is therefore necessary to be able to vary the release pressure without mechanical intervention (adding blades, spring tension…) to prevent stones from rising up or the plough from being moved over during work. The general design of non-stop safety systems allows an increasing or decreasing release curve to be obtained when encountering the obstacle.

The adjustment of the release pressure takes only a few seconds by connecting a hydraulic hose. There are options to suit the most demanding situations:

• VARIBAR option: allows the pressure at the point to be varied from the tractor while ploughing: immediate adaptation to working conditions.
• MAXIBAR option: instantaneous high release pressure (600 to 2500 kg) of the safety devices for working on very heavy soil.