The invention relates to an arrangement in the hoisting apparatus (11) of a work machine, which hoisting apparatus includes a rotation device (12) equipped with connectors (13) for connecting pressure-medium lines (14) to the rotation device, a boom (15), from which the pressure-medium lines are arranged to be led to the rotation device, a pivoted joint (17) for suspending the rotation device on the boom, which pivoted joint includes two consecutive pivots (22, 23) in the longitudinal direction of the rotation device, the rotational axes of which pivots are arranged at right-angles to each other, and in which the pressure-medium lines are arranged to route between the lugs (24) of the pivot (22) on the boom side of the pivoted joint. The pressure-medium lines are arranged to route past the connectors of the rotation device in the longitudinal direction of the rotation device and to turn towards the connectors in order to form a hose loop (18) and to route to the connectors of the rotation device, which are arranged on both sides (A, B) of the rotation device related to a plane defined in the longitudinal direction of the boom and the longitudinal direction of the rotation device. In addition, the invention also relates to a hoisting apparatus of a work machine and a work machine.La présente invention concerne un agencement dans l'appareil de levage (11) d'un engin de chantier, ledit appareil de levage comprend un dispositif de rotation (12) équipé de raccords (13) permettant de raccorder des conduites de fluide sous pression (14) au dispositif de rotation, une flèche (15), à partir de laquelle les conduites de fluide sous pression sont agencées pour être amenées au dispositif de rotation, une articulation pivotante (17) permettant de suspendre le dispositif de rotation sur la flèche, ladite articulation pivotante comprend deux pivots consécutifs (22, 23) dans le sens longitudinal du dispositif de rotation, dont les axes de rotation sont disposés à angle droit l'un p
