 The two hydraulic lifting pistons each consisted of one stationary cylinder and four extending telescopic cylinders.The largest extending cylinder included a flange halfway along its length, against which hydraulic pressure could be selectively applied from either above or below; it was used during raising to delay its extension until all other cylinders had extended, and also to begin the lowering process when the lifting frame was vertical (once lowering had thus been initiated, gravity finished the job).All components of the hydraulic system were products of "Meiller-Kipper GmbH", except the KdF drive engine from Volkswagen.