Fault and solution of hydraulic jacks Cylinders Hydraulic jacks Cylinders piston rod cannot extend, extend slowly or cannot extend completely? 1. Open the oil drain valve of the pump: fully tighten the oil drain valve; 2. The joint is not tightened: fully tighten the joint; 3. Lack of hydraulic oil in pump oil tank: add [...]
There are many kinds of jacks. The use methods and operation precautions of different hydraulic jacks are also different. The usage of hydraulic jack is as follows: 1. In the lifting operation usage of hydraulic jack, the appropriate tonnage should be selected: the load should not be overloaded, and the bearing capacity of the hydraulic [...]
What is the performance and special use of hydraulic jack self locking device? Under what working condition is hydraulic jack self-locking device used? The self-locking jack is used for the place where the heavy object needs to be maintained for a long time. It can still support the heavy object on the ground after the [...]
How to maintain the hydraulic jack? The hydraulic jack usually needs to use anti-wear hydraulic oil when working, and the hydraulic oil filled into the oil tank must be filtered. Usually, it is filtered once a month when it is used. The oil tank should be washed regularly. The oil level in the oil tank [...]
Before disassembling the hydraulic cylinder, the hydraulic circuit should be depressurized, otherwise, when the oil pipe joint connected with the cylinder is loosened, the high-pressure oil in the circuit will be ejected rapidly. When the hydraulic circuit is depressurized, first loosen the hand wheel or high-pressure screw at the overflow valve to unload the pressure [...]
The hydraulic cylinder plays an important role in lifting, pushing and supporting objects. The precautions for using the hydraulic cylinder are listed as follows: 1. During the use of the hydraulic cylinder, the hydraulic oil shall be replaced regularly, and the filter screen of the system shall be cleaned to ensure its cleanness, so as [...]
In the working process of hydraulic cylinder, in order to prevent the two pairs of pistons from squeezing the cylinder head, causing noise, affecting the accuracy of the workpiece and even damaging the parts, buffer devices are often equipped at both ends of the cylinder in the system of hydraulic pump station. Its function is [...]
Hydraulic Jacks Lifting operation, we should choose the appropriate tonnage of hydraulic jack: load-bearing capacity can not be overloaded, the choice of hydraulic jack load-bearing capacity needs to be greater than 1.2 times the weight of gravity; the minimum height of hydraulic jack is appropriate, in order to facilitate removal, the minimum height of hydraulic [...]
How to operate the hydraulic jack correctly when adjusting the speed? Hydraulic Jack must adjust its speed correctly in application. Only in this way can its performance be fully embodied. Then how should we operate correctly? The following points are elaborated in detail for you: In the process of debugging, the buffer device should be [...]
In engineering operation, engineering hydraulic jack is a kind of lifting equipment, unlike electric hoist, which lifts all kinds of materials by tension, while electric hoist lifts all kinds of materials. Take hydraulic jack as an example, before using, we must check whether the reserved hole is unblocked, whether the steel strand is rusted or [...]