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How to lower a floor jack?

Views: 8     Author: Site Editor     Publish Time: 2020-10-27      Origin: Site

Jack is a common tool, its purpose is to clog up, saves the manpower, so also is helpful for us to repair or inspection of objects, conventional jacks, according to the type division of vertical and horizontal two kinds, vertical lifting height is higher, while the horizontal general hoisting height much smaller, so the floor jack what should use? And how to lower a floor jack?

How to use a floor jack?

How to lower a floor jack?

Floor jack

How to use a floor jack?

1, All parts must be checked before using the floor jack.

2, The main parameters should be strictly observed when using, avoid super overloading, otherwise when the lifting height or lifting tonnage exceeds the requirements, the top of the cylinder will have a serious oil leakage.

3, If the amount of oil in the manual pump body is insufficient, you need to add to the pump should be fully filtered after the hydraulic oil to work.

4, Please refer to the operation manual of electric pump.

5, The center of gravity of the weight to choose moderate, reasonable choice of the force point of the jack, the bottom to pad flat, at the same time to consider the ground soft and hard conditions, whether to liner tough wood, placed smoothly, so as to avoid weight subsidence or tilt.

6, After the hydraulic floor jack lifts the weight, the warehouse jack should timely use the support to support the weight firmly, it is prohibited to use the jack as a support. If heavy objects need to be supported for a long time, please choose.

7, If several floor jacks need to be lifted at the same time, in addition to the floor jacks should be placed correctly, also should use multi-jack shunt valve, and the load of each floor jacks should be balanced, pay attention to keep the lifting speed synchronization. It is also necessary to take into account the possibility that the ground may cave in due to uneven weight to prevent the weight being lifted from tilting and causing hazards.

8, When in use, first connect the quick joint of the manual pump to the top, then select the right position, tighten the oil discharge screw on the oil pump, and then it can work. To make the piston rod drop, loosen the hand pump wheel slightly counterclockwise and the cylinder will be unloaded. Then the piston rod will drop gradually. Otherwise it will be dangerous to fall too fast.

9, Separate jacks with spring return structure can be quickly removed after lifting, but do not use the connected hose to pull the jacks.

10, Because the floor jack lifting stroke is small, the user must not exceed the rated stroke when using, so as not to damage the hydraulic floor jack.

11, Violent vibration of floor jack should be avoided during use.

12, Not suitable for use in workplaces with acid, alkali and corrosive gases.

13, The user should check and maintain regularly according to the use condition.

How to lower a floor jack?

When using the floor jack want to make sure of good strong point, determine the good points, we will push rod casing in front of the plug into the jack, install the compressive bar in casing and ensure the secure, we can continuously press the lever down, this effect will jack end through hydraulic rises slowly, until the weight to stop putting pressure on the right height. At this time, the weight will be suspended, so we can repair or inspect the object. Do not fiddle with the jack during the repair. After the repair, the jack should be relieved and the weight should be gradually put back in place. How do you lower the floor jack after use? Floor jacks generally have a screw switch, counterclockwise rotation can give the jack relief reset.


When using a floor jack, we should not only know how to raise it, but also know how to lower it, so as to ensure the normal use of the floor jack and extend its service life.


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