Solve the problem of the whole excavator being weak and the water and oil temperatures being high

[DIG-DOG]

During the operation of the excavator, once the whole machine is weak and the water temperature and oil temperature are both high, it is like a warning bell for the normal operation of the equipment. This complex problem not only seriously affects the operating efficiency of the excavator, but may also cause irreversible damage to the equipment. In-depth exploration of "https://www.dig-dog.com/collections/excavator" and "Techniques for troubleshooting the high water temperature and oil temperature of the excavator", and taking effective solutions, has become the key to ensuring the continuous and stable operation of the excavator. ​

In-depth analysis of the cause of the failure

Insufficient engine power

As the power source of the excavator, the performance of the engine directly affects the working state of the whole machine. When the engine fails, it is easy to cause the whole machine to be weak. For example, fuel system failure is one of the common reasons. Problems such as fuel injection nozzle blockage and oil pump failure can cause uneven or insufficient fuel injection, resulting in incomplete engine combustion and reduced power output. In the "https://www.dig-dog.com/collections/excavator", the fuel injector was blocked by impurities due to long-term use, and the sprayed fuel could not form a good atomization effect, the engine power was greatly reduced, and the excavator was obviously weak during operation. In addition, if the engine's air filter is clogged, the intake volume will be insufficient, which will also cause incomplete combustion and affect power output. ​

Failure of the hydraulic system​

The hydraulic system is the key to the excavator's various actions, and its failure is also an important factor that causes the whole machine to be powerless. Hydraulic pump wear is one of the common problems. Long-term high-intensity operation will cause wear of the parts inside the hydraulic pump, resulting in a decrease in the volumetric efficiency of the pump, and insufficient output flow and pressure. In the "Analysis of the whole machine powerlessness caused by the wear of the hydraulic pump of the excavator", due to the wear of the hydraulic pump, it is impossible to provide enough pressure for the hydraulic system, and the excavation, rotation, lifting and other actions of the excavator become slow and powerless. In addition, the overflow valve failure of the hydraulic system may make the system pressure unable to maintain the normal level, and too much oil will flow back through the overflow valve, causing energy loss, which will also cause the whole machine to be powerless. ​

Cooling system problem​

The cooling system is essential to maintain the normal working temperature of the engine and hydraulic system. When the cooling system fails, it is easy to cause the problem of high water temperature and oil temperature. Poor heat dissipation of the radiator is a common cause. If the surface of the radiator is blocked by dust or debris, or the internal heat sink is deformed, the heat dissipation effect will be affected. In the "Excavator Radiator Blockage Leading to High Water and Oil Temperature Case", the radiator was covered with a lot of dust, and the heat could not be effectively dissipated, causing the engine coolant temperature and hydraulic oil temperature to rise sharply. In addition, cooling fan failure, such as loose fan belt, damaged fan blades, etc., will cause the fan's heat dissipation air volume to be insufficient, and will also cause the water temperature and oil temperature to rise. ​

Mechanical component failure​

Some mechanical component failures of the excavator may also cause the above problems. For example, if the track tension is too tight or too loose, it will increase the walking resistance, consume the power of the engine, and cause the whole machine to be powerless. At the same time, the bearings, gears and other parts of the walking system are severely worn, which will generate additional friction resistance, which will also affect the power performance of the equipment. In the case of severe wear of mechanical parts, it may also cause the matching accuracy between parts to decrease, generate additional heat, and then affect the water temperature and oil temperature.
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Troubleshooting method​

Engine system troubleshooting​

When encountering the situation where the excavator is powerless and the water temperature and oil temperature are both high, the engine system should be checked first. Check the fuel system to see if the fuel filter is clogged and whether the injector is working properly. You can use professional testing equipment to test the injection pressure and atomization effect of the injector. At the same time, check the cleanliness of the air filter and replace it if necessary. In addition, check the oil level and oil quality of the engine. Insufficient or deteriorated oil may also affect the performance of the engine. Through these troubleshooting steps, it is possible to preliminarily determine whether the engine has a fault and the approximate range of the fault. ​

Hydraulic system troubleshooting​

For the hydraulic system, check the oil level and oil quality of the hydraulic oil. If the oil level is too low, the hydraulic system will not work properly, and the deterioration of the oil quality may affect the service life and performance of the hydraulic components. Use a hydraulic system tester to detect the output pressure and flow of the hydraulic pump to determine whether the hydraulic pump is working properly. At the same time, check whether the hydraulic components such as the overflow valve and the reversing valve are faulty, and check whether there is leakage in the hydraulic pipeline. Through a comprehensive inspection of the hydraulic system, the hydraulic system fault point that causes the whole machine to be weak can be accurately found. ​

Cooling system troubleshooting​

The inspection of the cooling system mainly revolves around the radiator and cooling fan. Check whether the radiator surface is clean, whether there is any debris blocking it, and whether the internal heat sink is deformed. You can use compressed air to clean the radiator to restore its heat dissipation performance. At the same time, check whether the belt of the cooling fan is loose, whether the fan blades are damaged, and whether the fan speed is normal. In addition, check the level and quality of the coolant. Insufficient or deteriorating coolant will also affect the cooling effect. Through a detailed inspection of the cooling system, the cause of the high water temperature and oil temperature can be determined. ​

Mechanical component inspection​

In the inspection of mechanical components, focus on checking whether the tension of the track is appropriate and whether the bearings, gears and other components of the walking system show signs of wear. The tension can be determined by measuring the droop of the track. For severely worn bearings and gears, they should be replaced in time. At the same time, check whether the connection of other mechanical components is firm, whether there is looseness, deformation, etc., to ensure that the mechanical components can work normally and reduce power loss and heat generation caused by mechanical failure.

Troubleshooting measures​

Engine fault repair​

For engine faults, such as fuel system problems, it is necessary to clean or replace the injectors, repair or replace the oil pump to ensure normal fuel injection. For air filter blockage problems, replace the filter in time. If the engine oil is insufficient or deteriorated, add or replace the oil that meets the specifications. After repairing the engine fault, debug the engine to ensure that its power output returns to normal.
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Hydraulic system fault repair​
For hydraulic system faults, if the hydraulic pump is severely worn, the hydraulic pump needs to be replaced. For hydraulic component failures such as overflow valves, repair or replace them. Repair the leakage problem of the hydraulic pipeline and add hydraulic oil to the normal oil level. After the repair is completed, the hydraulic system should be pressure tested and the flow adjusted to ensure that the system can work normally and provide enough power for the excavator. ​
Cooling system fault repair​
When the cooling system fails, for radiator blockage problems, the radiator surface and interior should be thoroughly cleaned and the deformed radiator fins should be repaired. If the cooling fan belt is loose, it should be adjusted or replaced; if the fan blades are damaged, the fan needs to be replaced. At the same time, add or replace coolant to ensure that the cooling system can dissipate heat normally and control the water temperature and oil temperature within the normal range. ​
Mechanical component failure repair​
For mechanical component failure, adjust the tension of the track to the appropriate range and replace severely worn bearings, gears and other components. Tighten and repair loose and deformed mechanical parts to ensure the matching accuracy between mechanical parts, reduce friction resistance and heat generation, and restore the mechanical performance of the excavator to normal. ​
The whole excavator is weak and the water temperature and oil temperature are both high. This is a more complex fault problem involving multiple aspects such as the engine, hydraulic system, cooling system and mechanical components. Through an in-depth understanding of the content related to long-tail keywords such as "deep analysis of the reasons for the whole excavator's weakness" and "excavator water temperature and oil temperature high troubleshooting skills", scientific troubleshooting methods and effective solutions can be adopted to repair faults in a timely and accurate manner, ensure the normal operation of the excavator, improve operating efficiency, and avoid further damage to the equipment. ​