What is the reason for the high temperature of the excavator?
Recently, one of the hot topics in the field of construction machinery isExcavator high temperature problem, especially during the peak construction period in summer, many users reported that high temperature alarms occurred frequently in the equipment. This article will combine the hot discussions and technical analysis of the entire network in the past 10 days to structure and sort out the common causes and solutions of high temperature in excavators.
1. Hot topics in the field of construction machinery across the Internet in the past 10 days
| Ranking | hot topics | Discuss the popularity index |
|---|---|---|
| 1 | Excavator high temperature fault solutions | 8.5/10 |
| 2 | Development Trend of New Energy Engineering Machinery | 7.2/10 |
| 3 | Hydraulic system maintenance tips | 6.8/10 |
2. Six core causes of high temperature in excavators
| Cause classification | Specific performance | Proportion |
|---|---|---|
| cooling system problems | Radiator clogged/fan damaged | 35% |
| Hydraulic system abnormality | Oil temperature is too high/valve group stuck | 28% |
| engine failure | Improper fuel injection/insufficient cylinder pressure | 18% |
| Improper operation | Overloaded work for a long time | 12% |
| Oil problem | Poor quality hydraulic oil/engine oil | 5% |
| environmental factors | Hot weather/poor ventilation | 2% |
3. Analysis of typical fault cases
According to a certain brand’s after-sales big data:High temperature alarm case in July 2023, radiator blockage accounted for 47%, the main manifestations are:
| Blockage type | Cleaning method | Precautions |
|---|---|---|
| dust accumulation | High pressure air gun purge | Install dustproof net |
| catkins/weeds | manual cleaning | Check every shift |
| Oil and dirt mixed | Special cleaning agent | Replace seals regularly |
4. Professional technical solutions
1.Three-step cooling method(Applicable to sudden high temperatures):
① Immediately reduce the engine speed to idle speed
② Open the pressure relief valve of the hydraulic system
③ Check the coolant circulation
2.Preventive maintenance schedule:
| maintenance items | Period (hours) | key indicators |
|---|---|---|
| Radiator cleaning | 250-300 | Ventilation efficiency ≥85% |
| Hydraulic oil testing | 500 | Viscosity change ≤10% |
| Fan belt inspection | 100 | Deflection 8-10mm |
5. Suggestions from industry experts
The latest technical guide of the China Construction Machinery Association states:Thermal management of modern excavators should follow the "Trinity" principle:
1. Cooling system upgrade (dual cycle cooling is recommended)
2. Installation of intelligent temperature control module (real-time monitoring of oil/water temperature difference)
3. Operator training (establishing awareness of temperature sensitivity)
According to JD.com’s big data on industrial products, since JulyExcavator cooling accessoriesSales volume increased by 210% year-on-year, including:
• High-flow water pumps account for 37%
• Copper radiators account for 29%
• Electronic temperature controllers account for 24%
Summary: The high temperature problem of excavators needs to be dealt with systematically, starting from daily maintenance, operating specifications and hardware upgrades. It is recommended that users establish a complete temperature management file to record the operating parameters of each high temperature alarm to provide data support for precise maintenance.
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