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Jacks and oil pumps are two commonly used lifting tools, jacks mainly play a load-bearing role, while the oil pump is to provide hydraulic power source, in the completion of the fixed support or lifting work, you need to jacks and oil pumps with the use of. The principle of the jack is to pressurise the internal liquid to produce deformation, so as to achieve the role of lifting and supporting. And the oil pump is through mechanical compression, hydraulic or electric drive mode, the formation of a certain pressure will be delivered to the jack internal liquid. Method of use: 1. Place the jack on the position to be supported or lifted, and make sure that the jack is perpendicular to the working surface. 2. Place the oil pump on a smooth ground, connect the oil pump with the jack, and seal the connection. Make sure the connection is secure to avoid leakage. 3. Switch on the power supply of the pump or start the hydraulic pump to generate a certain pressure. 4. After confirming that the pressure of the oil pump meets the requirements, start to control the work of the oil pump, and transfer the liquid to the jack through the oil pipe, so that it can lift or fix the workpiece. 5. In the process of using, pay attention to the action should be slow and steady, avoid sudden pressurisation or acceleration, resulting in overloading or damaging the parts.