(1) Pay attention to the discovery of abnormal phenomena at any time and anywhere

There must be some reason for abnormal sound, vibration or abnormal data signal in the monitoring system. When finding any abnormal phenomenon, immediately find the circuit diagram, follow the diagram, and carefully observe whether the abnormal phenomenon is caused by temporary error. Evaluate whether to park the car. The working pressure, load, temperature, time, startup and termination all include the reasons that are likely to cause abnormal phenomena. Usually, we should analyze and discuss them one by one.

(2) Do not load the hydraulic pump immediately after starting

After running, the hydraulic pump must run at a high speed without load for a period of time (about 10~30 minutes). Especially when the temperature is very low, it is necessary to warm up the whole process to make the hydraulic machine circuit circulation system work normally and then load again, and determine the operation condition.

(3) Observe temperature transition

Check carefully Hydraulic motor of snow sweeper Large and minimum temperature changes, and find out the correlation between soft oil and external working temperature, so that we can know whether the cooling tower volume and the oil tank volume of the storage vehicle are in line with the surrounding standards, and the application standards cooperate with each other, so that the common faults of the refrigeration system can be removed as if they were with us.

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

The new hydraulic pump has less wear in the early stage, and is easily damaged by bubbles and floating dust. Poor high-temperature lubrication or standard overload will cause adverse effects, making the hydraulic pump water outlet abnormal.

(5) Pay attention to the indicated value of the tester

Observe the vibration and stability of the pressure gauge of the hydraulic circuit, the pressure controller light, etc. at any time and anywhere to find out whether the hydraulic circuit function is normal.

(6) Pay attention to the posture of mechanical equipment (for modified pump)

The design scheme of hydraulic press circuit is unreasonable or the production and manufacturing of components are poor, which is difficult to find in the start and end application links. Therefore, attention should be paid to the posture shown under various application standards.

(7) Pay attention to the adjustment in each valve

Fully master the application of pressure regulating valve, flow regulating valve and azimuth regulating valve, and pay special attention to the regulation scope and limit, otherwise incorrect regulation will not only damage mechanical equipment, but also pose a threat to safety.

(8) Check the condition of the filter unit

The filter device in the loop should be removed and removed on time, and the condition of the filter screen and the waste absorbed on the screen should be checked. The quality, quantity and size of the waste should be analyzed, so that the level of environmental pollution in the loop can be observed, and even the source of environmental pollution can be inferred.

(9) Check the change of gear oil on time

Check and analyze gear oil deterioration, discoloration and environmental pollution level change every one or two months to ensure Hydraulic transmission All system media is normal.

(10) Pay attention to the leakage condition of the pipe penetration part

Whether the hydraulic control valve passes through the pipeline is good. After running for a period of time, it can be seen whether there is oil leakage and whether the pipeline passes through is loose.

(11) Pay attention to the operation of new mobile phones within three months

During the use of new mobile phones, check their working conditions, such as maintenance of parts, looseness of screws, abnormal temperature rise, rapid deterioration of gear oil, and compliance with application standards.