| 摘要 |
The two working chambers (2, 2', 3) of a working cylinder (1) of a hydraulic actuation arrangement may be directly connected with one another via a switchable dual-position valve (11), if necessary, whereby a resistance-free manual displacement of the components to be actuated is possible to a large extent-regardless of the working cylinder (1) that is driven by the hydraulic circuit (6) or also in case of a malfunctioning or a turned-off pressure medium source.
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