MOBILE WORKING MACHINE WITH A BRAKING DEVICE

The invention relates to a mobile work machine (1), in particular an industrial truck, with a braking device (6) which is designed as a hydraulically releasable spring accumulator brake (7) and as a dual-circuit service brake, wherein the spring accumulator brake (7) can be acted upon by way of a hydraulic brake release pressure present in a brake release pressure chamber (12) in the direction of a release position and can be acted upon by way of a hydraulic brake pressure present in a brake pressure chamber (13) in the direction of a brake position. According to the invention, a first brake circuit (15) of the service brake is formed by a manual force brake (20) which has a manually operable brake cylinder (21), by means of which the brake pressure present in the brake pressure chamber (13) can be generated upon manual actuation. A second brake circuit (16) of the service brake is formed by a power brake which has a pressure control valve (25), by means of which the brake release pressure present in the brake release pressure chamber (12) can be reduced in a metered manner.