10 common minor faults and troubleshooting methods when using excavators

　　For excavator users, excavator failures are very common. Excluding a certain failure rate, the frequency of improper daily work operations and minor failures caused by external factors is still very high. Today TD will introduce to you the common minor failure rates of 10 types of excavators and how to troubleshoot them. Here we focus on the fact that some excavator faults are difficult to find and require professional technicians to detect them. Some faults can be solved through simple troubleshooting. When there are no professionals present or the problem has not been determined, TD does not recommend that individuals dismantle the excavator to avoid additional damage and losses.

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　　1. Difficulty starting the engine:

　　- Check whether the battery power is sufficient. If necessary, please charge or replace the battery in time.

　　- Check whether the fuel system is smooth, including the fuel filter, oil-water separator and other components. If it is clogged, please clean or replace it in time.

　　- Check whether the air filter is clogged. If necessary, clean or replace it in time.

　　2. The excavator moves slowly or weakly:

　　- Check whether the hydraulic oil is sufficient. If there is insufficient, please add it in time.

　　- Check whether hydraulic components such as hydraulic pumps and valve groups are working normally. If there are any abnormalities, please repair or replace them in time.

　　- Check whether the pilot pressure is normal. If there is any abnormality, please check the pilot pump, safety valve and other components.

　　3. Leakage of excavator arm, stick, and bucket cylinder:

　　- Check whether the cylinder seal is worn or damaged, and replace it in time if necessary.

　　- Check whether the cylinder connection is loose. If so, please tighten it in time.

　　- Check whether the joint bearings, pins and other components are worn or loose. If there are any abnormalities, please replace or tighten them in time.

　　- Check whether the hydraulic pipeline is worn or aged, and replace it in time if necessary.

　　5. Excavator overheating:

　　- Check whether the coolant is sufficient. If there is insufficient, please add it in time.

　　- Check whether the cooling system is smooth, such as radiator, water pump and other components. If it is clogged, please clean or replace it in time.

　　- Check whether the fan belt is loose or worn. If there is any abnormality, please adjust or replace it in time.

　　6. Excavator fuel consumption is too high:

　　- Check the fuel system for leaks. If there is oil leakage, please repair it in time.

　　- Check whether the engine performance is normal. If there is any abnormality, please repair or replace relevant parts in time.

　　- Check the operating habits of the excavator and avoid idling or running at high speed for a long time.

　　- Check whether the hydraulic oil has deteriorated and replace it in time if necessary.

　　- Check whether there is any leakage in the hydraulic system. If there is oil leakage, please repair it in time.

　　- Clean the hydraulic oil tank regularly to keep the hydraulic oil clean.

　　8. The excavator wanders:

　　- Check whether the traveling motor is working normally. If there is any abnormality, please repair or replace it in time.

　　- Check whether the travel reducer is worn and replace it in time if necessary.

　　- Check whether the track tension is appropriate. If there is any slack, please adjust it in time.

　　9. Abnormal noise from excavator rotation:

　　- Check whether the slewing bearing is worn and replace it in time if necessary.

　　- Check whether the swing motor is working normally. If there is any abnormality, please repair or replace it in time.

　　- Check the slewing reducer for wear and replace it in time if necessary.

　　10. The air conditioner in the excavator cab does not cool:

　　- Check whether the air conditioning compressor is working normally. If there is any abnormality, please repair or replace it in time.

　　- Check whether the air conditioner refrigerant is sufficient. If there is insufficient, please add it in time.

　　- Check whether the air conditioning filter is clogged. If necessary, clean or replace it in time.

　　If you want to extend the service life of your excavator and improve its stability in daily use, meticulous care and stable maintenance cycles are essential. Both excavator owners and users need to have a certain understanding of excavators. The maintenance and repair of some minor faults are relatively simple. However, the replacement of excavator parts must be carried out with the help of safety tools and professionals. If the large excavator maintenance process Improper operation can easily cause personal injury. Friendly reminder fromTD used excavator Routine maintenance is easy and can be solved by yourself. When it comes to replacing mechanical equipment beyond the safe range of the excavator, you must strictly abide by the regulations.