Hydraulic jack, is a jack that uses a plunger or hydraulic cylinder as a rigid lifting member. Simple lifting equipment is generally only equipped with a lifting mechanism for lifting heavy objects. The utility model has the advantages of simple structure, light weight, convenient carrying and convenient movement. Commonly used simple lifting equipment includes hydraulic jacks, pulleys and winches. Below is the correct way how to use it.

1: Using the slotted end of the handle, insert it into the oil return valve and tighten the oil return valve in the right hand direction (clockwise).

2: Estimate the lifting weight, determine the center of gravity of the lifting object, select the force point, and place it correctly below the lifting part. If necessary, rotate the jack's adjustment screw in the left-hand direction (counterclockwise) until it contacts the lifting object.

3: Insert the jack handle into the handle sleeve, tilt the handle up and down, the piston rod should rise smoothly and lift the heavy object to the desired height.

Attentions:

1: When the hydraulic jack is working, it is necessary to select the hydraulic jack of the appropriate tonnage: the bearing capacity can not be overloaded, the bearing capacity of the hydraulic jack should be greater than 1.2 times the weight of the weight; the minimum height of the hydraulic jack is suitable, for easy removal, select The minimum height of the hydraulic jack should be compatible with the clearance at the bottom of the weight. When the cushion supports the heavy objects during the landing, the lifting height of the hydraulic jack is greater than the sum of the thickness of the sleeper and the deformation of the sleepers.

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