What is the impact of small excavators operating in high temperature environments?What are the harms of high temperature to small excavators
The continuous high temperature weather not only makes people feel dry and hot and loses their appetite,but also affects the"health"of excavators.If the temperature is too high,the excavator will have problems such as high temperature alarm.So,in the hot summer when the high temperature continues,how to prevent the unhappiness caused by the high temperature weather to the excavator,so as to ensure the normal use of the excavator?
1.Effectively prevent"three highs"of excavators
The"three highs"of the excavator are that the temperature of the water tank is too high,the temperature of the hydraulic pressure is too high,and the temperature of the lubricating grease is too high.
The harm of"three highs":
The temperature of the water tank is too high,commonly known as"boiling"."Boiling"affects the normal heat dissipation of the engine,which in turn causes high-temperature expansion and deformation of the internal parts of the engine,such as pistons and piston rings being thermally expanded and stuck.At the same time,high temperature aggravates the oxidation of engine oil and accelerates the wear and tear of moving parts.
When the hydraulic oil temperature is too high,the viscosity,lubricity and wear resistance of the oil will decrease significantly,which will not only lead to increased leakage,but also destroy the oil film of each sliding part,which will intensify the wear of hydraulic components.
If the temperature of the lubricating grease is too high,the lubricating grease will become soft,the adhesion performance will be reduced,and it will be easy to lose.At this time,various"moths"such as high temperature,wear,and noise will be caused by the working device and the rotary device due to poor lubrication.
Prevention of"three highs":
The effective way to avoid boiling the pot is to use antifreeze correctly,check whether there is any lack of antifreeze in the water tank every day,and add antifreeze in time.Note:Do not use river water,tap water,etc.to replace the antifreeze,because the water is easy to generate scale in the water tank,and the scale will block the cooling fins,resulting in the incomplete circulation of the liquid in the water tank.
The prevention of high temperature of hydraulic oil depends on daily inspection and maintenance,such as regular dust removal and cleaning of radiators,so as to maintain heat dissipation performance.
The way to prevent excessive lubricating grease is to choose lubricating grease with good high-temperature performance in summer.It is necessary to maintain the adhesion performance at higher temperatures and ensure that the failure process is slow.
2 Clean up the adsorbents of the excavator in time
The working environment of the excavator is generally relatively harsh.Catkins,dust,weeds,etc.will enter the excavator through the gaps,and will be adsorbed to the water tank,hydraulic oil radiator,and condenser parts,causing the heat dissipation of the excavator to be blocked,which in turn will cause high temperature in the engine.,hydraulic oil deterioration and other problems,affecting normal work.Therefore,in the high temperature environment in summer,we must remember to check in time and clean up the adsorbent of the excavator in time to ensure the safe and normal operation of the excavator.
3 Regularly check the fan to ensure sufficient air intake
In high temperature weather,remember to check the engine fan and fan belt every day to ensure that the fan is running normally and the belt is not slipping.Only by ensuring sufficient air intake can insufficient air flow cause high temperature.
4 High temperature alarm,timely shutdown for inspection
When working in a high-temperature environment,once the engine high-temperature alarm occurs,the engine should be reduced to idle speed immediately,the side door should be opened to ventilate and dissipate heat,and then stop the machine for inspection and troubleshooting.Do not let the excavator work"sickly"to avoid engine damage.
Kind tips
When working in hot weather,not only the excavator needs to prevent high temperature problems,but the driver also needs to take good protection against heatstroke:
1.Take sun protection measures.
2.Comprehensively check the cab air-conditioning system,including whether the air-conditioning filter is too dirty,whether there are foreign objects in the radiator,etc.,and perform regular cleaning and replacement to ensure the cooling effect of the air conditioner.
3.Be sure to prepare a lot of water to replenish water for the body in time.It is best to prepare some nutritional drinks to replenish energy in time.
4.Be sure to combine work and rest,pay attention to rest,do not stay in the machine for too long,and go out occasionally to breathe fresh air.
