Setting the tripping force for the semi-automatic overload safety

The tripping force of the semi-automatic overload safety can be infinitely variably adjusted to suit the soil conditions.

Default spring length L = 20cm

  1. To increase the tripping force,

    reduce the spring length by turning the nut 1

or

To reduce the tripping force,

increase the spring length by turning the nut 1.

  1. Set both springs to the same length.