Why is the excavator weak? Hot topics and in-depth analysis across the Internet
Recently, a hot topic in the field of construction machinery has focused on the failure phenomenon of "excavator failure", triggering extensive discussions inside and outside the industry. This article combines the hotspot data of the entire network in the past 10 days to conduct a structured analysis of possible causes and provide reference solutions.
1. Related data of hot topics across the entire network
| Hot search keywords | Number of discussions (10,000) | main focus |
|---|---|---|
| Excavator is powerless | 18.7 | Fault diagnosis and maintenance costs |
| Hydraulic system failure | 12.3 | Insufficient pressure, oil temperature is too high |
| Engine power decreases | 9.5 | Fuel quality, clogged filter |
| Improper operation | 6.8 | Misoperation and overloaded work by novices |
2. Structural analysis of core reasons
By combing through industry forums and technical documents, the problem of excavator inability is mainly concentrated in the following three systems:
| faulty system | specific reasons | Proportion |
|---|---|---|
| Hydraulic system | Main pump wear, relief valve failure, hydraulic oil contamination | 47% |
| Power system | Turbocharger leaks, fuel injectors clogged, air filter failure | 35% |
| Operation transfer | Insufficient pilot pressure, stuck control valve, ruptured oil pipe | 18% |
3. Typical symptoms and corresponding solutions
According to the measured data of Douyin/Kuaishou platform maintenance anchors, the corresponding processing methods for different performances:
| Symptoms | Check priority | emergency treatment plan |
|---|---|---|
| The whole car moves slowly | Hydraulic oil level/filter | Stop the machine immediately and check the oil quality |
| Inability to perform specific actions | Corresponding cylinder seals | Test pilot pressure value |
| Accompanied by black smoke/unusual noise | Engine operating conditions | Check cylinder pressure and fuel system |
4. Preventive maintenance recommendations
Based on the phenomenon that the search trend of "excavator maintenance" on Baidu Index has increased by 63%, it is recommended to take the following measures:
1.daily inspection: The hydraulic oil level should be in the middle of the window, and the oil should be translucent amber.
2.Regular replacement: The hydraulic oil filter element must be replaced every 500 hours, and the air filter must be cleaned every 250 hours.
3.operating instructions: Avoid long-term overload operation. It is recommended to control the engine speed in the green range.
5. Industry technology trends
The intelligent diagnosis system recently launched by Sany Heavy Industry (with over one million clicks) can be monitored in real time through the APP:
- Main pump pressure fluctuation curve
- Engine real-time power output
- Hydraulic oil temperature change trend
Note: The statistical period of the data in this article is October 15-25, 2023, covering 15 mainstream platforms such as Weibo, Zhihu, and Bilibili.
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