Entering the summer, the continuous high temperature weather not only makes people hot in the heart and loss of appetite, but also affects the "health" of excavators. If the temperature is too high, problems such as high temperature alarm will occur on the excavator. So, in the hot summer with continuous high temperature, how to prevent the harm caused by high temperature weather to the excavator to ensure the normal use of the excavator?
Effective prevention of excavator "three highs"
The "three highs" of the excavator are that the temperature of the water tank is too high, the hydraulic oil temperature is too high, and the lubricating oil temperature is too high.
The harm of "three highs" :
The temperature of the water tank is too high, commonly known as "boiling pot". The "boiling pot" affects the normal heat dissipation of the engine, and then causes the high-temperature expansion and deformation of the parts in the engine. When the hydraulic oil temperature is too high, the viscosity, lubricity and wear resistance of the oil will be significantly reduced, which will not only lead to an increase in leakage, but also destroy the oil film at each sliding part, which will aggravate the wear of the hydraulic components. If the lubricating oil temperature is too high, the grease will become soft, the adhesion performance will be reduced, and the grease will be easily lost. At this time, the working device and the rotating device will cause various "unitary" such as high temperature, wear and noise due to poor lubrication.
"Three highs" prevention:
The effective way to avoid boiling is to use antifreeze correctly, check the water tank antifreeze every day, and add antifreeze in time. Note: Do not use river water, tap water, etc., instead of antifreeze, because water is easy to produce scale in the tank, scale will block the heat sink, resulting in the liquid in the tank can not be completely circulated. The prevention of high temperature of hydraulic oil depends on daily inspection and maintenance, such as regularly dusting and cleaning the radiator, which can maintain the heat dissipation performance. The way to prevent excessive lubricating oil is to choose lubricating oil with good high temperature performance in summer, not only to maintain the adhesion performance at a higher temperature, but also to ensure that the failure process is slow.
2. Clean up the adsorbent of the excavator in time
The working environment of the excavator is generally harsh. Catkins, dust, weeds, etc. enter the excavator through the cracks and adsorb to the water tank, hydraulic oil radiator, condenser and other parts, causing the heat dissipation of the excavator to be blocked, and then causing problems such as high temperature of the engine and deterioration of hydraulic oil, affecting the normal operation. Therefore, in the summer high temperature environment, we must remember to check in time and clean up the adsorption of the excavator in time to ensure the safe and normal operation of the excavator.
3. Periodically check the fan to ensure adequate air intake
In high temperature weather, we should also remember to check the engine fan and fan belt every day to ensure that the fan works normally and the belt does not slip. Only by ensuring sufficient air intake can we avoid high temperature caused by insufficient air volume.
4. High temperature alarm, stop and check in time
When operating in a high temperature environment, once the engine high temperature alarm occurs, the engine should be immediately reduced to idle speed, open the side door for ventilation and heat dissipation, and then shut down for inspection and troubleshooting, and the excavator should not be allowed to work "with disease" to avoid engine damage. Crawler Excavator
