Abstract: The invention relates to a method of inserting one or more cables into a cable-surrounding tubing (4) with the aid of a liquid (water). The specific gravity of the cable (3a) is adapted to correspond, or at least generally correspond to the specific gravity of the liquid (1a) used. The liquid (1a) present in the tubing and the flow of the liquid therethrough function as a means to support the cable (3a) and its cable section and/or to reduce the weight of the cable 3(a) and its cable section, and also as a means of entraining the cable and its cable section through the tubing (4). Each cable section (3a) to be laid in the tubing is intended to pass through a nozzle (10) or the like prior to entering the tubing through one end thereof. The insertion of one or more cables into the tubing is effected with the aid of a piston unit (20).

Abstract: On extracting, reeling up, pulling in etc., of a heavy cable a main frame that can be set up or that may already be present on a vehicle may be used. The main frame comprises a base unit made up of a number of beams, and two bearing brackets projecting upwards from its long sides. A drum for the cable is supported free to rotate on the bearing brackets. The drum is provided with drive gear which comprises a motor unit and a transmission component. A pulling device is connected to a core of the cable and to a pull-free mechanism secured to the main frame. By means of the pull-free mechanism the cable can be given a small longitudinal displacement which enables the cable to be pulled free of its duct. After pulling free the pulling device is disconnected and the cable is pulled up towards and anchored on the drum, after which the motor unit is operated to turn the drum. The major part of the longitudinal displacement of the cable is then achieved by reeling the cable directly up on to the drum.