Beijing Lingying Hoisting Machinery Factory

Hydraulic jack is the simplest lifting equipment with a small lifting height (less than). It is available in both mechanical and hydraulic types. There are two types of mechanical jacks: rack type and screw type. Due to their small lifting capacity and laborious operation, they are generally only used for mechanical maintenance work and are not suitable for bridge repairs. The hydraulic jack has a compact structure, stable operation and self-locking effect, so it is widely used. The disadvantage is that the lifting height is limited and the lifting speed is slow. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and supporting work. Its structure is light, strong, flexible and reliable, and can be carried and operated by one person. As a widely used tool, the jack is cast with the highest quality materials to ensure the quality and service life of the jack.
. Before use, you must check whether all parts are normal.<>
. When using, you should strictly abide by the regulations in the main parameters and avoid over-height and overload. Otherwise, when the lifting height or lifting tonnage exceeds the regulations, the top of the cylinder will Serious oil leakage occurs.<>
If the oil volume of the manual pump body is insufficient, you must first add fully filtered hydraulic oil to the pump before it can work.<>
For electric pumps, please Refer to the instruction manual of the electric pump.<>
The center of gravity of the weight should be moderate and reasonable. The bottom surface of the jack's force point should be padded flat. At the same time, the soft and hard conditions of the ground should be taken into consideration, whether it should be padded, and whether the tough wood should be placed smoothly to avoid sinking under load. Or tilt.<>
After lifting the heavy object with the jack, you should promptly use a support to firmly support the heavy object. It is prohibited to use the jack as a support. If you need to support the heavy object for a long time, please choose<>
. If several jacks are required to lift at the same time, in addition to placing the jacks correctly, multiple diverter valves should be used, and the load of each jack should be balanced and attention should be paid to keeping the lifting speed synchronized. It is also necessary to consider preventing the ground from sinking due to uneven weight. Danger may occur due to tilting caused by heavy objects.<>
When using, first connect the quick connector of the manual pump to the top, then select a good position and tighten the oil drain screw on the oil pump to start work. To lower the piston rod Slightly loosen the handwheel of the manual oil pump in the counterclockwise direction to loosen the unloading piston rod of the oil cylinder and gradually descend. Otherwise, it will be dangerous if the descending speed is too fast.<>
After lifting, the separated jack has a spring return structure. Quickly take it out but do not use the connected hose to pull the jack.<>
Since the lifting stroke of the jack is small, users must not exceed the rated stroke when using it to avoid damaging the jack.<>
During use Violent vibrations of the jack should be avoided.<>
It is not suitable for use in workplaces with acid and alkali corrosive gases.<>
Users should check and maintain regularly according to the usage conditions.
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Hydraulic jack