After changing the hydraulic pump, you should pay attention to it

After the replacement of the new hydraulic pump, do not think that you can temporarily feel relieved, in order to better operation of hydraulic pumps and life extension, the following are also should pay attention to.

Pay attention to the discovery of anomalies: hydraulic system abnormal sound, vibration monitoring system or abnormal signal, must have a cause, once found abnormal, immediately got circuit diagram, a careful observation of abnormal phenomena caused by the error for the moment. Evaluation requires no parking treatment. Such as pressure, load, temperature, time, start and stop when they contain may cause the abnormal phenomenon.

Do not immediately after starting the hydraulic pump load, to ease the step by step: hydraulic pump shall be implemented for a period of time after the start of idling in the no load (about 10 minutes ~30 minutes), especially very low temperatures, more subject to temperature vehicles, plus the normal cycle of the hydraulic circuit to the load, and confirm the operation status.

Pay attention to the noise of hydraulic pump: the initial wear of the new hydraulic pump is less, it is easy to be affected by the bubbles and dust. When the lubrication is bad at high temperature or the use condition is too heavy, it will cause adverse consequences, and make the hydraulic pump produce abnormal influence.

Check the state of the filter: the filter in the loop should be removed regularly, and check the state of the screen and the net of the adsorption of dirt, analysis of quality, quantity and size, so you can observe the degree of pollution in the loop, and even infer the source of pollution.

Observation of changes in oil temperature changes: pay attention to check the status of the maximum and minimum oil temperature, and found out the relationship of oil temperature and ambient temperature, so as to know the cooler capacity, whether the storage tank capacity and ambient conditions, conditions of use to cooperate with each other, troubleshooting cooling systems also have pattern.

Pay attention to check the display value of the meter class: observe the pressure loop display value of the hydraulic circuit at any time, the vibration situation and stability of the pressure switch light and so on, so as to find out whether the hydraulic circuit is functioning properly as soon as possible.

Attention to the adjustment of the valve: fully understand the use of pressure control valve, flow control valve and directional control valve, the adjustment range and limit must pay special attention to, otherwise the adjustment error not only damage to machinery, but also pose a threat to safety.

Attention should be paid to the mechanical action (for refitting pump): improper design of hydraulic circuit or improper manufacture of components, it is not easy to find in the initial stage of operation, so special attention should be paid to the action state under various operating conditions.

Pay attention to the leakage of the piping part: whether the hydraulic device piping is good or not, after running for a period of time, it can be seen whether the oil leakage is checked and the piping is loose.

Regular inspection of hydraulic oil change: every one or two months to check and analyze the deterioration of hydraulic oil, discoloration and pollution degree changes, to ensure the normal hydraulic transmission medium.

Within three months of operation of the new machine note: the running status of machine operation in the new period, we should grasp the operating conditions such as inspection, maintenance parts, screws are loose, if there is abnormal increase in oil temperature, hydraulic oil is quickly degraded, check whether the conditions comply with the provisions of.