Adjusting the exact following harrow pressure hydraulically

The exact following harrow must cover all of the seed rows evenly with earth. On heavy soils, the exact following harrow pressure must be higher than on light soils. The minimum exact following harrow pressure and the maximum exact following harrow pressure can be limited by inserting linch pins.

The harrow pressure is hydraulically adjusted together with the coulter pressure. With higher coulter pressure, higher harrow pressure is also set at the same time.

NOTE
The adjustment of the exact following harrow pressure must be adapted to the respective operating conditions. The optimum adjustment can only be determined during field operation.

  1. To relieve the linch pin 3:

    Actuate the green 1 tractor control unit.

The lower the pegging position, the smaller the minimum exact following harrow pressure.

  1. To define the minimum harrow pressure:

    Remove the linch pin. Insert it in the desired hole under the stop 1.

  2. To relieve the linch pin 2:

    Actuate the green 2 tractor control unit.

The higher the pegging position, the greater the maximum harrow pressure.

  1. To define the maximum exact following harrow pressure:

    Remove the linch pin. Insert it in the desired hole above the stop.

  2. To check the setting:

    Spread seed for 30m at working speed. Check the work pattern.