Abstract: A dragline includes a boom, a bucket, a hoist rope from which the bucket is suspended from the boom, and a drag rope for dragging the bucket. Data is produced on the alignment, with respect to a vertical plane containing the boom axis, of at least one of the following dragline components: i) the hoist rope; ii) the drag rope; iii) the boom; iv) the bucket. This data can be used for controlling the load condition on the basis of the dragline. The data can be inputted to a man-machine interface, e.g. a display device, controlled by a human operator, and/or it can be inputted to control the drive of the hoist rope and/or of the drag rope, so as to decrease or cease drive in response to detected misalignment of dragline component(s).

Abstract: The dragline (1) comprises a boom (4), a bucket (8), a hoist rope (10) from which the bucket is suspended from the boom, and a drag rope (18) for drag the bucket. Technical means are used to produce data on the alignment, with respect to a vertical plane containing the boom axis (BA), of at least one of the following dragline components: i) the hoist rope (10), ii) the drag rope (18), iii) the boom (4) iv) the bucket (8). This data can be used for controlling the load condition on the basis of the dragline. The data can be inputted to a man-machine interface, e.g. a display device (36), whereby said controlling step is effected via a human operator, and/or it can be inputted to means (38) for controlling the drive of the hoist rope (10) and/or of the drag rope (18), so as to decrease or cease said drive in response to detected misalignment of said dragline component(s).