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How to Deal With Small Excavators Under High Temperature Conditions?

When the small excavator is in use, due to the complicated conditions, don’t panic when encountering high temperature. We should deal with it in time. Only in this way can the excavator be prevented from being damaged.First of all, we judge the hydraulic high temperature fault of the excavator according to the method from simple to complex, from external to internal, from intuition to detection.

Small Excavators

Fault analysis and processing steps

  • First check whether the hydraulic oil radiator is dirty, hydraulic oil level, oil quality, check the filter element, clean and replace it in time if there is any problem; check whether there is any leakage in the hydraulic system. If there are multiple leaks, replace seals and damaged parts in time.
  • Use a multimeter to check for circuit problems and sensor damage. Use a direct temperature tester to test whether the actual hydraulic oil temperature is too high.
  • The above inspection is normal. Check the oil return check valve of the hydraulic system. They should be removed to check for damaged or seized springs. If you have any issues, they will need to be cleaned or replaced.
  • Check whether the hydraulic pump of the excavator has any abnormal noise, and whether the oil discharged from the oil discharge pipe is too much. If the working pressure is too low, use a pressure gauge to test the working pressure of the system; the above inspections are normal inspection standards for small excavators. As long as the inspection is carried out in accordance with certain procedures, it can ensure reasonable inspection of the excavator and reduce the occurrence of abnormal situations.

Small excavators are mainly used to complete the following tasks

  • Excavation of buildings and plant foundations;
  • Loading operations in quarries, tunnels, underground workshops, stockyards;
  • Excavation of earthwork materials and stripping of mining area coverings;
  • Excavation of channels and channels and dredging of waterways;
  • After replacing the working device, pouring, hoisting, installation, piling, compaction and other operations can be carried out. Mini excavators are extremely versatile, but when any piece of equipment fails, mini excavators are no exception.

What should be paid attention to during the maintenance of small excavators?

  1. Parts decontamination and cleaning are not clean: correct removal of oil and impurities on the surface of parts plays an important role in improving the maintenance quality of wheeled excavators and prolonging their service life.
  2. Change the oil in time. After the small excavator is overhauled, there are more impurities after the trial run. If the oil is not changed after cleaning, it is easy to accidentally burn the shaft.
  3. The misuse of bolts is very prominent: in the maintenance of excavators, because the performance and quality of bolts do not meet the technical requirements, bolt failures occur from time to time, and misuse is more prominent.
  4. Irregular use of gaskets: The types of gaskets used in modern and old excavator parts are very different. During excavator maintenance, gaskets are not standardized or even used indiscriminately, which may easily cause leakage and loosening between accessories, bolts and nuts.

In short, the maintenance and repair of small excavators need more attention. In order to minimize the occurrence of failures, the daily maintenance of small excavators is very necessary.