How to use and precautions for Hydraulic Floor Jack

How to use and precautions for Hydraulic Floor Jack

Jack is a magical tool, and the most commonly used one now is hydraulic floor jack, which is also called oil jack. It mainly uses plunger or hydraulic cylinder as rigid lifting piece, and hydraulic jack has a very good lifting mechanism, so it is very convenient to lift heavy objects. In addition, hydraulic jack has many characteristics, such as simple structure, light weight, and very convenient to use. Next, I will tell you about the knowledge about hydraulic jack.

How to use a hydraulic jack

1. Before use, check whether all parts are normal. (Mainly check whether there is oil leakage in the piston, joints, high-pressure hoses, etc.).

2. When using, strictly abide by the provisions in the main parameters, and avoid over-height and overloading. Otherwise, when the lifting height or lifting tonnage exceeds the regulations, serious oil leakage will occur at the top of the cylinder.

3. If the oil volume of the manual pump body is insufficient, it is necessary to add fully filtered hydraulic oil to the pump before it can work.

4. The center of gravity of the heavy object should be moderate, and the focus point of the jack should be reasonably selected. The bottom surface should be leveled. At the same time, the soft and hard conditions of the ground should be considered, whether to pad with tough wood, and whether it is placed stably to avoid sinking or tilting under load.

5. After the jack lifts the weight, it should be supported firmly with supports in time

6. If several jacks are needed for lifting at the same time, in addition to correctly placing the jacks, it should be noted that the load of each jack should be balanced, and the lifting speed should be kept synchronous to prevent the lifted weight from tilting and causing danger.

7. When using the jack, place the cylinder in a good position, tighten the drain screw on the oil pump, and it can work. To lower the piston rod, slightly loosen the handwheel of the manual oil pump in a counterclockwise direction, unload the cylinder, and the piston rod will gradually drop. Otherwise, the descent speed is too fast and it will be dangerous.

8. The split jack is a spring reset structure. After lifting, it can be quickly removed, but the connected hose cannot be used to pull the jack.

9. Because the lifting stroke of the jack is small, users must not exceed the rated stroke when using it to avoid damaging the jack.

Precautions for split Hydraulic Floor Jack

1) If the pump fails to hit the target during use, loosen the drain screw on the pump body, lift the pump body vertically and hit it several times, then tighten the drain screw and continue to use it.

2) Do not add partial load or overload during use to avoid damage to the jack. When there is a load, do not remove the quick connector to avoid accidents and damage to the machine parts.

3) This machine uses oil as the medium. The oil and the machine must be well maintained to avoid clogging or oil leakage, which will affect the use effect.

4) For new or long-standing Hydraulic Floor Jack, there is a lot of air in the oil cylinder. When starting to use, the piston rod may have a slight jump phenomenon. The hydraulic jack can be reciprocated 2-3 times without load to remove the air in the cavity. Long-term idle jacks will harden the seals due to long-term non-operation, thus affecting the service life of the Hydraulic Floor Jack. Therefore, when the Hydraulic Floor Jack are not in use, they should be reciprocated 2-3 times a month without load.

From the above article, we can see that the role of Hydraulic Floor Jack is still very large. It is also the most commonly used lifting equipment for lifting heavy objects. The hydraulic jack is mainly composed of a shell, a large piston, a small piston, a wrench and a fuel tank. There are many types of Hydraulic Floor Jack, among which the most common ones are general Hydraulic Floor Jack, special Hydraulic Floor Jack, and through-type jacks. Moreover, Hydraulic Floor Jack are often used in power maintenance, bridge and ship repair and static pile driving.