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?8491.If the hydraulic system pressure is normal while the engine-driven pump is running, but there is no pressure after the engine has been shut off, it indicates

发布于 2021-02-18 22:10:55

【单选题】
A ?the system relief valve setting is too high.
B ?no air pressure in the accumulator.
C ?the pressure regulator is set too high.

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michael1062 2023-02-18

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zoulang_2007

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