Abstract: A method is for function checking of a pressure-medium operated electronic brake system of a vehicle, having a valve and sensor device, having a brake cylinder for actuating a brake, having an ABS solenoid control valve associated with the brake cylinder. For function checking of the control valve, it is temporarily activated and pressurized via the control unit and via the valve and sensor device such that pressure builds up at the input side of the control valve although a pressure increase in the associated brake cylinder is not expected, or a decrease after an interim increase is expected, and a malfunction of the anti-lock braking system solenoid control valve is identified if, contrary to expectations, a response of the vehicle due to a pressure increase in the brake cylinder, or due to the lack of a decrease after an increase, is established during this function check.

Abstract: A second workpiece, for instance a pocket blank, is placed with its edge regions protruding on at least three sides, on a folding device which forms part of the automatic sewing machine. The folding device has a swingable outer frame which has a plurality of inwardly and outwardly moveable bend-over devices with Z-shaped angles which fold the protruding edge regions around a so-called "sword". Thereupon, the folded second material is placed on a first workpiece which is present in a receiving station. Then the folded edge regions are continuously fixed over their entire length by a holding element which is embedded in an insert plate provided within the receiving station. The holding element permits the bend-over devices to move back away from the workpieces into their starting position, without carrying the folded edge regions along with them and thereby unfolding the folded edge regions.