Before you start installing the DAB pumping station, it is necessary to additionally carry out work on checking the air pressure in the air tank air cavity. This will allow you to safely and reliably install the station. If pressure problems are found during the audit, then it must be adjusted. The freedom of rotation of the nose shaft also needs to be checked and adjusted. Most often, to eliminate these problems, you just need to turn the fan blades, which are under the rear cover of the pump, using a screwdriver. Rotation should occur evenly and freely without any obstacles. This position is characteristic of Pedrollo, Needle, and T pumps. D. See the detailed information and description of the stations on a special website.