This quick turn system was especially developed for tunnel extinguishing vehicles which makes it possible to turn a vehicle in the tightest area. The four hydraulic cylinders which are mounted to the vehicle frame cause a lifting force of a 700 mm stroke.
Via the hydraulic engines attached at the slewing ring, the vehicle can be turned within the shortest period of time and up to an incline of 5%. Operation of the turning device is via two joy sticks in the driver's cabin. The entire process - lifting, turning 180° and lowering occurs in less than 50 seconds.
Since January 2002, there are four extinguishing vehicles available with this system in the Gotthard tunnel.