The self-propelled construction machine according to the invention has a braking device which comprises at least one hydraulically actuated braking device actuating device 8 which has a pressure chamber 10A, 11A that can be acted upon with a hydraulic fluid. The braking device actuating device 8 is formed in such a way that, in a locking position, the running gear 3B, to which the braking device actuating device 8 is assigned, is braked, and, in an operating position, the running gear is unbraked. In addition, the construction machine according to the invention has a hydrostatic steering device 9, which comprises at least one hydraulic steering device actuating device 22. In the event of a malfunction in the supply of hydraulic fluid to the braking device actuating device 10, 11, the hydraulic system has a manually actuated emergency-operation valve arrangement 16 which is formed in such a way that, after the manual actuation thereof, a fluid connection is created between the steering device actuating device 22 and the pressure chamber 10A, 11A of the braking device actuating device 10, 11. The emergency-operation valve arrangement 16 has a valve block 27 in which flow paths are formed which can be shut off by means of shut-off screws 31, 32.


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    Title :

    SELF-PROPELLED CONSTRUCTION MACHINE


    Contributors:

    Publication date :

    2021-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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