Single acting flat hydraulic jack
If multiple single acting flat hydraulic jack are used to lift the same equipment, the same type of single acting flat hydraulic jack should be used, and the sum of the additional lifting weight of each hydraulic jack should not be less than 1.5 times the gravity of the equipment. Hydraulic jacks should be wiped clean before use, and should check whether the components can be active, whether there is any damage, avoid loading the quick joints when there is load, to prevent the occurrence of faults and damaged parts.
The carrying capacity of the single acting flat hydraulic jack should be greater than 1.2 times the gravity of the weight; the minimum height of the single acting flat hydraulic jack is suitable. For the convenience of taking out, the minimum height of the single acting flat hydraulic jack should be adapted to the clearance at the bottom of the weight.
When the bolster supports the heavy objects during the landing, the lifting height of the single acting flat hydraulic jack is greater than the sum of the ties and the occipital deformation.