Abstract: There is provided a drilling rig for use on a drilling platform, comprising a drilling mast having at least two segments and a feed carriage, said drilling mast being adapted to be constructed in such a manner that at least one segment is displaced upwardly by means of the feed carriage. A mounting method in accordance with the invention for a drilling mast having at least two segments comprises the following steps: fixing of a feed carriage, providing of a mast segment below the feed carriage, and displacing the mast segment upwardly by means of the feed carriage. Due to this, additional auxiliary devices for constructing the drilling mast are not required, and space may be saved.

Abstract: There is provided a drilling rig for use on a drilling platform, comprising a drilling mast having at least two segments and a feed carriage, said drilling mast being adapted to be constructed in such a manner that at least one segment is displaced upwardly by means of the feed carriage. A mounting method in accordance with the invention for a drilling mast having at least two segments comprises the following steps: fixing of a feed carriage, providing of a mast segment below the feed carriage, and displacing the mast segment upwardly by means of the feed carriage. Due to this, additional auxiliary devices for constructing the drilling mast are not required, and space may be saved.

Abstract: In a method and a device for monitoring a filling level of a coolant circuit of a vehicle air conditioning system, an external temperature and/or an engine temperature of the vehicle and a coolant pressure are measured and a resting state analysis of the coolant quantity is carried out. Control, events for operating the coolant circuit and/or warning events are controlled when an incorrect quantity is detected. To improve the reliability of the information provided by the resting state analysis, the duration taken to reach a homogenous thermal state of the vehicle is defined, or the homogenous thermal state of the vehicle is detected as a function of at least one measured temperature (ta, tm). The, resting state analysis is carried out, or the control events during the operation of the coolant circuit and/or warning events in the vehicle are controlled, as a function of the defined or detected homogenous thermal state of the vehicle.