Excavators must check the project in winter, and 9 out of 10 machines did not do it!
Posted: Nov 12th, '24, 01:16
With the start of winter, the weather is getting colder, and the cold winter is coming, which is more important for the maintenance and maintenance of excavator. Pay attention to the following misunderstandings and precautions, so that the excavatorhealthy winter.
1 Release water too early or do not put cooling water
If the cooling water is released too early, the body will be suddenly attacked by cold air when the temperature is high, and there will be a sudden shrinkage and cracks. Should run at idle speed before extinguishing, until the cooling water temperature drops below 60℃, the water is not hot, and then turn off the water. When releasing water, the remaining water in the body should be completely discharged to prevent the water from freezing and expanding, causing the body to burst.
2 Use inferior fuel
The low temperature in winter makes the fluidity of diesel worse, the viscosity increases, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, leading to a decline in the power and economic performance of diesel engines. Therefore, light diesel oil with low freezing point and good ignition performance should be selected in winter. It is generally required that the freezing point of the diesel engine should be lower than 7-10℃ of the local minimum temperature in the current season.
3 Open fire to help start the excavator
The air filter can not be taken off, and the cotton yarn is dipped in diesel and lit to make kindling and placed in the intake pipe to help start. In this way, during the startup process, the external dusty air will be directly inhaled into the cylinder without filtering, causing abnormal wear of piston, cylinder and other parts, and also causing the diesel engine to work violently and damage the machine.
4 Bake oil pan with open flame
Open flame baking of the oil pan may cause the oil in the oil pan to deteriorate, even scorch, reduce the lubrication performance or completely lose, thus aggravating machine wear. In winter, oil with low freezing point should be selected, and the method of external water bath heating can be used to increase the oil temperature when starting.
5 The startup method is improper
Before the excavator starts, it needs to be fully preheated, and the gap between the parts is relatively large before the engine is preheated, and the oil is easy to sink. After the car, it must be preheated for a period of time, and the oil pump starts to work at the same time to transport the oil to the parts that need lubrication. The oil should be circulated to the main parts after the engine starts, and at this time, if the oil is in a hurry, the rapid temperature rise will increase the wear of the parts. Similarly, when the hydraulic oil temperature is low, rapid operation will cause damage to the hydraulic device.
PS: Generally the best preheating time in winter is 15-20 minutes.
6 Low temperature load operation
After the diesel engine started to catch fire, some drivers could not wait to immediately put into load operation. Diesel engines that catch fire soon, due to low body temperature and large oil viscosity, oil is not easy to fill the friction surface of the moving pair, which will cause serious wear of the machine. In addition, the plunger spring, valve spring and injector spring are also easy to break due to "cold and brittle". Therefore, after the diesel engine starts to catch fire in winter, it should be idled at low and medium speed for a few minutes, and then put into load operation when the cooling water temperature reaches 60 ° C.
7 Do not pay attention to body insulation
The low temperature in winter is easy to make the diesel engine cooling too much when working. Therefore, thermal insulation is the key to good use of diesel engines in winter. In the northern regions, the diesel engines used in winter should be equipped with cold equipment such as thermal insulation sleeves and thermal insulation curtains. In addition, the thermostat plays an important role in the heating of the diesel engine. Therefore, it is necessary to check whether the thermostat is working normally in time, and the invalid thermostat should be replaced in time.
8 Turn off the engine when the machine stops
Correct way: idling for 5-10 minutes, especially with turbocharged diesel engine, because at this time the turbine speed is very fast, up to 100,000 revolutions per minute or more, the engine oil pump stops working, but the turbine is still running at high speed because of inertia and the temperature is still very high, the turboshaft lacks oil lubrication and cooling, which often leads to premature damage to the turboshaft. Therefore, it should idle for a while, and then turn off the engine after the temperature drops.
9 Butter is not beaten on time
excavatordoes not beat butter on time, the consequences are very serious:
▊ increased wear
Not filling the butter on time will make the butter oil seal not seal, and even cause fracture, increase the wear degree between the friction parts (such as shaft sleeve, pin, etc.), and reduce the service life. The machine works as a whole, which will also increase the wear of other components.
▊ affects the operation accuracy
It affects the accuracy of operation and reduces the efficiency of operation. If the gap between the excavatorbuckets increases, it is difficult to carry out accurate leveling and "sweeping" operations, and the work that can be completed at one time takes several times.
▊ parts wear and break
The butter of the excavator walking device is not adjusted in time, which is easy to make the track come off, or other parts are seriously worn and broken.
10 The excavatoris parked at will
The excavatoris parked at will, regardless of whether the terrain is flat or not. If the slope of the parking position is large, it will lead to insufficient oil pressure of the excavator, and in the long run, it will cause high temperature of the engine.
Choose DIG-DOG for high-quality, customizable brush cutters for skid steers with fast delivery. Contact us today to discover how our superior products can enhance your land management tasks!
for more info just visit our website at www.dig-dog.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com
1 Release water too early or do not put cooling water
If the cooling water is released too early, the body will be suddenly attacked by cold air when the temperature is high, and there will be a sudden shrinkage and cracks. Should run at idle speed before extinguishing, until the cooling water temperature drops below 60℃, the water is not hot, and then turn off the water. When releasing water, the remaining water in the body should be completely discharged to prevent the water from freezing and expanding, causing the body to burst.
2 Use inferior fuel
The low temperature in winter makes the fluidity of diesel worse, the viscosity increases, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, leading to a decline in the power and economic performance of diesel engines. Therefore, light diesel oil with low freezing point and good ignition performance should be selected in winter. It is generally required that the freezing point of the diesel engine should be lower than 7-10℃ of the local minimum temperature in the current season.
3 Open fire to help start the excavator
The air filter can not be taken off, and the cotton yarn is dipped in diesel and lit to make kindling and placed in the intake pipe to help start. In this way, during the startup process, the external dusty air will be directly inhaled into the cylinder without filtering, causing abnormal wear of piston, cylinder and other parts, and also causing the diesel engine to work violently and damage the machine.
4 Bake oil pan with open flame
Open flame baking of the oil pan may cause the oil in the oil pan to deteriorate, even scorch, reduce the lubrication performance or completely lose, thus aggravating machine wear. In winter, oil with low freezing point should be selected, and the method of external water bath heating can be used to increase the oil temperature when starting.
5 The startup method is improper
Before the excavator starts, it needs to be fully preheated, and the gap between the parts is relatively large before the engine is preheated, and the oil is easy to sink. After the car, it must be preheated for a period of time, and the oil pump starts to work at the same time to transport the oil to the parts that need lubrication. The oil should be circulated to the main parts after the engine starts, and at this time, if the oil is in a hurry, the rapid temperature rise will increase the wear of the parts. Similarly, when the hydraulic oil temperature is low, rapid operation will cause damage to the hydraulic device.
PS: Generally the best preheating time in winter is 15-20 minutes.
6 Low temperature load operation
After the diesel engine started to catch fire, some drivers could not wait to immediately put into load operation. Diesel engines that catch fire soon, due to low body temperature and large oil viscosity, oil is not easy to fill the friction surface of the moving pair, which will cause serious wear of the machine. In addition, the plunger spring, valve spring and injector spring are also easy to break due to "cold and brittle". Therefore, after the diesel engine starts to catch fire in winter, it should be idled at low and medium speed for a few minutes, and then put into load operation when the cooling water temperature reaches 60 ° C.
7 Do not pay attention to body insulation
The low temperature in winter is easy to make the diesel engine cooling too much when working. Therefore, thermal insulation is the key to good use of diesel engines in winter. In the northern regions, the diesel engines used in winter should be equipped with cold equipment such as thermal insulation sleeves and thermal insulation curtains. In addition, the thermostat plays an important role in the heating of the diesel engine. Therefore, it is necessary to check whether the thermostat is working normally in time, and the invalid thermostat should be replaced in time.
8 Turn off the engine when the machine stops
Correct way: idling for 5-10 minutes, especially with turbocharged diesel engine, because at this time the turbine speed is very fast, up to 100,000 revolutions per minute or more, the engine oil pump stops working, but the turbine is still running at high speed because of inertia and the temperature is still very high, the turboshaft lacks oil lubrication and cooling, which often leads to premature damage to the turboshaft. Therefore, it should idle for a while, and then turn off the engine after the temperature drops.
9 Butter is not beaten on time
excavatordoes not beat butter on time, the consequences are very serious:
▊ increased wear
Not filling the butter on time will make the butter oil seal not seal, and even cause fracture, increase the wear degree between the friction parts (such as shaft sleeve, pin, etc.), and reduce the service life. The machine works as a whole, which will also increase the wear of other components.
▊ affects the operation accuracy
It affects the accuracy of operation and reduces the efficiency of operation. If the gap between the excavatorbuckets increases, it is difficult to carry out accurate leveling and "sweeping" operations, and the work that can be completed at one time takes several times.
▊ parts wear and break
The butter of the excavator walking device is not adjusted in time, which is easy to make the track come off, or other parts are seriously worn and broken.
10 The excavatoris parked at will
The excavatoris parked at will, regardless of whether the terrain is flat or not. If the slope of the parking position is large, it will lead to insufficient oil pressure of the excavator, and in the long run, it will cause high temperature of the engine.
Choose DIG-DOG for high-quality, customizable brush cutters for skid steers with fast delivery. Contact us today to discover how our superior products can enhance your land management tasks!
for more info just visit our website at www.dig-dog.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com