What is the reason for the excavator to hold up?
Recently, the issue of excavator holding has triggered extensive discussions in the field of construction machinery. Excavator stalling refers to the phenomenon that the engine speed drops or even stalls due to excessive load or system failure during operation. This article will combine the hot topics and hot content on the Internet in the past 10 days, analyze the reasons why excavators are holding back, and provide structured data for reference.
1. The main reasons why the excavator is stuck
According to the hot topics discussed on the entire network, the reasons why the excavator is stuck are mainly concentrated in the following aspects:
| Reason type | Specific performance | Proportion (discussion popularity in the entire network) |
|---|---|---|
| Hydraulic system failure | Abnormal pressure of hydraulic pump and blockage of oil circuit | 35% |
| Engine power is insufficient | Poor fuel quality, turbocharger failure | 28% |
| Improper operation | The load is too large and the operating lever moves too hard | 20% |
| electrical system problems | Sensor failure, ECU program error | 12% |
| other reasons | Air filter clogged, cooling system failure | 5% |
2. Detailed analysis of hydraulic system faults
Hydraulic system failure is the most common reason for excavator stalling, accounting for up to 35%. The following are the specific manifestations and solutions of hydraulic system failures:
| Failure performance | Possible reasons | solution |
|---|---|---|
| Abnormal noise of hydraulic pump | Hydraulic oil contamination and pump internal wear | Change hydraulic oil or repair hydraulic pump |
| Hydraulic oil temperature is too high | The cooler is clogged and the oil line is not smooth. | Clean the cooler or replace the hydraulic oil filter element |
| Slow and weak movements | Main relief valve pressure too low | Adjust relief valve pressure or replace valve |
3. Common problems of insufficient engine power
Insufficient engine power is the second largest reason for excavator stalling, accounting for 28%. The following are typical symptoms of insufficient engine power:
1.Fuel system problems:A clogged fuel filter and poor atomization of the fuel injector will lead to insufficient fuel supply, leading to vehicle suffocation.
2.Turbocharger failure:Turbocharger oil leakage or blade damage will reduce the engine's air intake efficiency, resulting in a drop in power.
3.Air filter clogged:Increased air intake resistance will directly affect the combustion efficiency of the engine.
4. Preventive measures for improper operation
Improper operation accounts for 20%, and the main manifestations are:
- Simultaneous operation of multiple operating levers results in excessive instantaneous load on the hydraulic system
- Failure to adjust the bucket strength in time when working on soft ground
- Perform high-intensity operations at high speeds for a long time
5. Recent hot events related to the entire network
| event | Discussion popularity | relevance |
|---|---|---|
| A certain brand of excavators appears to be stuck in batches | high fever | Hydraulic pump design flaws |
| Excavators frequently stall during operation in plateau areas | medium heat | Altitude reduces turbocharging efficiency |
| New hydraulic oil can reduce the probability of holding the car by 30% | low fever | Oil improvement technology |
6. Routine maintenance suggestions to prevent vehicle stagnation
1. Regularly replace hydraulic oil and filter elements (recommended every 500 hours)
2. Check the engine air intake system and fuel system daily
3. Avoid overloading work for a long time when working
4. Regularly check the hydraulic system pressure with professional equipment
5. Pay attention to the alarm information on the dashboard and handle it in a timely manner
From the above analysis, it can be seen that the problem of excavator holding back needs to be solved from two aspects: mechanical maintenance and operating specifications. It is recommended that users establish complete equipment maintenance records and contact professional maintenance personnel for diagnosis in a timely manner when encountering frequent vehicle stalling.
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