Problems needing attention after installation of t

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Problems that should be paid attention to after the installation of hydraulic pump

problems that should be paid attention to after the installation of hydraulic pump:

(1) pay attention to the operation condition within three months of the operation of the new machine

during the operation of the new machine, you should grasp the operation condition inspection, such as the maintenance of machine parts, whether the screws are loose, whether the oil temperature rises abnormally, whether the hydraulic oil deteriorates quickly, and whether the service conditions meet the regulations

(2) do not add load immediately after the hydraulic pump is started

the hydraulic pump must be idled for a period of time (about 10 ~ 30 minutes) after starting. Especially when the temperature is very low, it must go through the warm-up process to make the hydraulic circuit circulate normally and then add load, and confirm the operation condition

(3) observe the change of oil temperature

pay attention to the change of the maximum and minimum oil temperature, and find out the relationship between the oil temperature and the external ambient temperature, so as to know whether the capacity of the cooler and the capacity of the oil storage tank are in line with the surrounding conditions. "The use conditions cooperate with each other, and the troubleshooting of the cooling system can be followed

(4) pay attention to the noise of the hydraulic pump

the new hydraulic pump has less wear at the initial stage, and is vulnerable to bubbles and dust. Poor lubrication or overloaded service conditions at high temperature will cause adverse consequences and make the hydraulic pump produce abnormal effects

(5) pay attention to check the display value of gauges

observe the vibration and stability of the pressure gauge display value of the hydraulic circuit, pressure switch light signal and so on at any time, so as to find out whether the hydraulic circuit function is normal as soon as possible

(6) pay attention to the action of the machinery (for modified pumps)

the hydraulic circuit is not designed properly or the components are poorly manufactured, which is not easy to find in the initial use stage, so special attention should be paid to the action state under various use conditions

(7) pay attention to the adjustment in each valve

fully understand the use of pressure control valve, flow control valve and direction control valve, and pay special attention to the adjustment range and limit of mold, otherwise the adjustment error will not only damage the machinery, but also pose a threat to safety

(8) the total profit of paper-making enterprises decreased from 83.78 billion in 2017 to 76.64 billion in 2018. Check the status of the filter

the filter in the circuit should be taken out and cleaned regularly, and check the status of the filter and the dirt adsorbed on it, analyze the quality, quantity and size, so that the degree of pollution in the circuit can be observed, and even infer the source of pollution

(9) regularly check the changes of hydraulic oil

check and analyze the deterioration, discoloration and pollution of hydraulic oil every one or two months to ensure the normal operation of hydraulic transmission media

(10) pay attention to the leakage of the piping

whether the piping of the hydraulic device is good can be seen after running for a period of time. Check whether there is oil leakage and whether the piping is loose

(11) pay attention to the discovery of abnormal phenomena at any time

abnormal sound, vibration or abnormal signal of the monitoring system must have its reason. As soon as an abnormal phenomenon is found, immediately find the circuit diagram, follow the diagram, and carefully observe whether the abnormal phenomenon is caused by a temporary error. Evaluate whether parking is required. For example, pressure, load, temperature, time, starting and stopping all include the reasons for possible abnormal phenomena. At ordinary times, it should be analyzed and discussed item by item

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