| 摘要 |
A hydraulic jack having an air pumping feature is disclosed. This jack is provided with a common drive motor including an elongated double-ended shaft having respective portions projecting from the motor. The one end of the shaft is connected to first reduction gearing which, in turn, drives a piston of an air pump. The other end of the shaft is connected to a second reduction gearing which, in turn, drives an oil pump of the lifting mechanism of the jack.
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