提升卷扬机应能正常工作，制动器应工作可靠。

The hoisting machine can work normally, the brake should be reliable.

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如也正常，说明故障不在制动系。

As is also normal, that is not braking system fault.

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若正常，可高速磨擦片与制动鼓间隙。

If the normal, high-speed friction film and brake drum clearance.

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若正常，可高速磨擦片与制动鼓间隙。

If the normal, high-speed friction film and brake drum clearance.

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