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Matters needing attention for hydraulic jack

Views:4     Author:Site Editor     Publish Time: 2021-04-08      Origin:Site

1: When the hydraulic jack is in the lifting operation, the hydraulic jack of the appropriate tonnage should be selected: the carrying capacity should not be overloaded, and the carrying capacity of the hydraulic jack should be greater than 1.2 times the weight of the weight; the minimum height of the hydraulic jack should be suitable, in order to facilitate removal, use The minimum height of the hydraulic jack should be compatible with the clearance at the bottom of the heavy object. When the sleeper supports the heavy object during the lifting process, the lifting height of the hydraulic jack should be greater than the sum of the thickness of the sleeper and the deformation of the sleeper. 


2: If multiple hydraulic jacks are used to lift the same equipment, the same type of hydraulic jack should be selected, and the sum of the rated lifting weight of each hydraulic jack shall not be less than 1.5 times the weight of the equipment it bears. 


3: The hydraulic jack should be wiped clean before use, and the parts should be checked for flexibility and damage. Do not remove the quick connector when there is a load to avoid accidents and damage to the parts. 

4: The hydraulic jack should be placed flat before use, not tilted, and the bottom should be leveled to prevent the hydraulic jack from tilting or overturning due to the sinking of the foundation or the deviation of the load. You can put a tough pillow or steel plate at the bottom of the hydraulic jack to expand Pressure-bearing area, so as to avoid accidents caused by sinking or sliding; do not use oily wood or steel plate as a liner to prevent slipping when force is applied, and safety accidents; the position where the heavy object is lifted must be a safe and solid part. Prevent damage to the equipment.

 5: When using a hydraulic jack, first try to lift a part of the heavy object first, carefully check that the hydraulic jack is normal, and then continue to lift the heavy object. If the backing plate is found to be uneven or weak or the hydraulic jack is inclined after being compressed, the hydraulic jack must be decompressed and returned, and it can be operated again after handling it in time.

 6: During the lifting process, the safety sleeper rack should be laid under the hydraulic jack in time as the weight continues to rise to prevent the hydraulic jack from tilting or causing the piston to suddenly drop and cause an accident. When lowering the heavy object, gradually pull out the sleeper. The distance between the sleeper and the weight should not exceed the thickness of a sleeper to prevent accidents! 

7: If the lifting height of the heavy object needs to exceed the rated height of the hydraulic jack, you need to put the sleepers under the heavy object lifted by the hydraulic jack, lower the hydraulic jack, raise its bottom, and repeat the lifting until the required lifting height. 

8: Hydraulic jacks cannot be used as permanent supporting equipment. If long-term support is required, a support part should be added under the heavy object to ensure that the hydraulic jack is not damaged. 

9: If only one hydraulic jack is used to lift one end of the heavy object, the hydraulic jack should be placed on the symmetry axis of the heavy object, and the direction of the length of the hydraulic jack base and the direction in which the weight is easy to fall should be consistent. If two hydraulic jacks are used at one end of the weight, the direction of the base should be slightly symmetrical and placed on both sides of the axis of symmetry of the weight. 

10: When two or more hydraulic jacks are used for lifting operations at the same time, they must be commanded, coordinated, and lifted at the same time. 

11: The hydraulic jack should be stored in a dry and dust-free place. It is not suitable for use in the workplace with acid, alkali, corrosive gas, and it should not be placed outdoors in the sun and rain! Strictly abide by the technical specifications during operation, and the user needs to check and maintain it regularly according to the usage.

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