Appliances to change the oil of engines, differentials, gearboxes, ect... quickly and practically on any vehivle.
They anable extraction of hot exhausted oil (70/80° C) through one of the 4 sensors provided, from the engine sump of vehicles on the ground.
After depressurizing (creating a vacuum inside the tank thanks VENTURI system), they are entirely independent and need no continuous connection with the source of compressed air (compressor).
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