What should I pay attention to before filling the four-column hydraulic press?

For a four-column hydraulic press, the working parameters of each working cycle and the various actions that make up the cycle are correctly adjusted, such as force, speed, acceleration, start and end of stroke, time of each movement, and total time. This value provides a correct and reliable duty cycle for the system. The application text record of the operation and debugging of the four-column hydraulic press, after approval, the input of the technical file of the equipment, as the original technical basis of equipment maintenance, plays a very important role in the fault diagnosis of the four-column hydraulic press. What are the precautions before filling the four-column hydraulic press?

1. Before refueling, please carefully check and clean the hydraulic tank. After the oil is filtered through a 100-mesh or larger filter, it is injected into the fuel tank. The hydraulic oil should be replaced every 8-12 months, and the four-column hydraulic press should be checked regularly every month. After replacement, the volume of the hydraulic tank is about 520 liters. Note: Please clean the tank before refueling. Do not use cotton or cotton. Silk cloth or edible flour is recommended.

2. It is recommended to use 46 # anti-wear hydraulic oil as a hydraulic working fluid, and the ambient temperature is 0-45°C.

3. When fueling the four-column hydraulic press, please pay attention to the oil level in the middle of the level gauge, but do not reduce or exceed the range of the level gauge. In the debugging process, attention should be paid to the change of the hydraulic oil level of the four-column hydraulic press. After stopping, please refill the oil level and low hydraulic oil.

The hydraulic unit shall establish a maintenance and repair system for the machine and strictly follow it. The maintenance of the four-column hydraulic press should be carried out by qualified technicians. The operator of a four-column hydraulic press can only perform simple maintenance on protective devices, conventional lubrication components, manually operated components that only act on mechanical components, and the four-column hydraulic press logo.

Determine the power loss and temperature rise of the four-column hydraulic press. If the loss is large and the temperature rises, it will affect the normal operation of the system. The reasons should be analyzed and measures should be taken to solve the problem. The four-column hydraulic press detects force, speed and stroke adjustability as well as operational reliability. If problems are found, they should be corrected.

The increase in hydraulic oil temperature will reduce the suction line and increase leakage, and the volumetric efficiency of the pump and the overall system efficiency will be reduced by 6%. The thermal deformation of the machine makes the gap between the moving parts with different thermal expansion coefficients in the four-column hydraulic press components smaller and stuck, which leads to failure and affects the accuracy of the hydraulic device, resulting in a decline in the quality of the parts.

The increase in the temperature of the hydraulic oil will also deform the rubber seal, resulting in early aging failure, shortened service life, reduced sealing performance and leakage. The leak will be further heated to produce a temperature increase. If the oil temperature is too high, it will accelerate the deterioration of the liquid, decompose the asphalt material, and reduce the service life of the hydraulic oil. As the temperature of the hydraulic oil increases, the air separation pressure of the mooring equipment decreases, and the dissolved air in the pump escapes and forms air pockets, which causes the performance of the four-column hydraulic press to decline.

Before filling the four-column hydraulic press, carefully inspect and clean the tank. After the oil is filtered through a 100-mesh or larger filter, it is injected into the fuel tank. Hydraulic oil should be replaced every 8-12 months and should be checked regularly every month. If you find deterioration, replace it immediately. The hydraulic tank has a capacity of about 520 litres. Note: Clean the tank before refueling. Cotton or cotton cloth is strictly prohibited. Silk cloth or edible flour dough is recommended.