Seven major operating errors of excavators in winter
Posted: Dec 24th, '24, 02:13
Wrong practice 1: Draining water too early or not draining cooling water
Serious consequences that may be caused: engine body expansion or sudden contraction, cracks appear.
Correct practice: Run at idle speed before turning off the engine, and turn off the engine and drain water when the cooling water temperature drops below 60℃ and the water is not hot. If the cooling water is drained too early, the engine body will shrink suddenly and crack when it is suddenly attacked by cold air at a high temperature. When draining water, the remaining water in the engine body should be completely discharged to prevent it from freezing and expanding, causing the engine body to expand and crack.
Wrong practice 2: Randomly choose fuel
Serious consequences that may be caused: Reduce engine life and increase the probability of damage Correct practice: Low temperature in winter makes diesel fluidity worse, viscosity increases, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, resulting in reduced power and economic performance of diesel engines. Therefore, light diesel with low freezing point and good ignition performance should be used in winter. Generally, the freezing point of diesel engines is required to be 7-10℃ lower than the lowest temperature of the local season.
Wrong practice 3: Using open flame to assist combustion and start
Serious consequences that may be caused: serious consequences may burn the machine, and at least damage the engine
Correct practice: Do not remove the air filter, dip cotton yarn in diesel and ignite it, make a fire starter and place it in the intake pipe to assist combustion and start. In this way, during the starting process, the dusty air from the outside will be directly sucked into the cylinder without being filtered, causing abnormal wear of parts such as the piston and cylinder, and will also cause the diesel engine to work roughly and damage the machine.
Wrong practice 4: Baking the oil pan with open flame
Serious consequences that may be caused: serious consequences may burn the machine, and at least aggravate the wear of the machine
Correct practice: Baking the oil pan with open flame will cause the oil in the oil pan to deteriorate or even burn, and the lubrication performance will be reduced or completely lost, thereby aggravating the wear of the machine. In winter, low-freezing point oil should be used, and the oil temperature can be increased by heating the oil in an external water bath when starting.
Wrong practice 5. Improper starting method
Serious consequences that may be caused: serious damage to the machine
Correct practice: first cover the water tank with a thermal blanket, open the drain valve, and continuously inject 60-70℃ clean soft water into the water tank. When the water flowing out of the drain valve feels hot, close the drain valve, pour 90-100℃ clean soft water into the water tank, and shake the crankshaft to properly pre-lubricate all moving parts before starting.
Wrong practice 6. Low temperature load operation
Serious consequences that may be caused: causing serious wear of the machine
Correct practice: After the diesel engine starts and catches fire, some drivers can't wait to start load operation immediately. A diesel engine that has caught fire not long ago will cause serious wear of the machine due to the low body temperature and high oil viscosity. The oil is not easy to fill into the friction surface of the moving pair. In addition, the plunger spring, valve spring and injector spring are also easy to break due to "cold brittleness". Therefore, after the diesel engine is started and ignited in winter, it should idle at low and medium speed for a few minutes, and then put into load operation when the cooling water temperature reaches 60℃.
Wrong practice 7: Not paying attention to the heat preservation of the engine body
Serious consequences that may be caused: reduced service life and damage to the engine
Correct practice: The temperature is low in winter, which can easily cause the diesel engine to overcool when working. Therefore, heat preservation is the key to using diesel engines well in winter. In northern regions, diesel engines used in winter should be equipped with cold-proof equipment such as insulation sleeves and insulation curtains. In addition, the thermostat plays an important role in the temperature rise of the diesel engine when it is working. Therefore, before entering winter, the thermostat should be checked for normal operation. The failed thermostat should be replaced in time, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, which leads to a decrease in the power and economic performance of the diesel engine. Therefore, light diesel with low freezing point and good ignition performance should be selected in winter. Generally, the freezing point of the diesel engine is required to be 7-10℃ lower than the lowest temperature of the local season.
Choose BONOVO 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.bonovogroup.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com
Serious consequences that may be caused: engine body expansion or sudden contraction, cracks appear.
Correct practice: Run at idle speed before turning off the engine, and turn off the engine and drain water when the cooling water temperature drops below 60℃ and the water is not hot. If the cooling water is drained too early, the engine body will shrink suddenly and crack when it is suddenly attacked by cold air at a high temperature. When draining water, the remaining water in the engine body should be completely discharged to prevent it from freezing and expanding, causing the engine body to expand and crack.
Wrong practice 2: Randomly choose fuel
Serious consequences that may be caused: Reduce engine life and increase the probability of damage Correct practice: Low temperature in winter makes diesel fluidity worse, viscosity increases, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, resulting in reduced power and economic performance of diesel engines. Therefore, light diesel with low freezing point and good ignition performance should be used in winter. Generally, the freezing point of diesel engines is required to be 7-10℃ lower than the lowest temperature of the local season.
Wrong practice 3: Using open flame to assist combustion and start
Serious consequences that may be caused: serious consequences may burn the machine, and at least damage the engine
Correct practice: Do not remove the air filter, dip cotton yarn in diesel and ignite it, make a fire starter and place it in the intake pipe to assist combustion and start. In this way, during the starting process, the dusty air from the outside will be directly sucked into the cylinder without being filtered, causing abnormal wear of parts such as the piston and cylinder, and will also cause the diesel engine to work roughly and damage the machine.
Wrong practice 4: Baking the oil pan with open flame
Serious consequences that may be caused: serious consequences may burn the machine, and at least aggravate the wear of the machine
Correct practice: Baking the oil pan with open flame will cause the oil in the oil pan to deteriorate or even burn, and the lubrication performance will be reduced or completely lost, thereby aggravating the wear of the machine. In winter, low-freezing point oil should be used, and the oil temperature can be increased by heating the oil in an external water bath when starting.
Wrong practice 5. Improper starting method
Serious consequences that may be caused: serious damage to the machine
Correct practice: first cover the water tank with a thermal blanket, open the drain valve, and continuously inject 60-70℃ clean soft water into the water tank. When the water flowing out of the drain valve feels hot, close the drain valve, pour 90-100℃ clean soft water into the water tank, and shake the crankshaft to properly pre-lubricate all moving parts before starting.
Wrong practice 6. Low temperature load operation
Serious consequences that may be caused: causing serious wear of the machine
Correct practice: After the diesel engine starts and catches fire, some drivers can't wait to start load operation immediately. A diesel engine that has caught fire not long ago will cause serious wear of the machine due to the low body temperature and high oil viscosity. The oil is not easy to fill into the friction surface of the moving pair. In addition, the plunger spring, valve spring and injector spring are also easy to break due to "cold brittleness". Therefore, after the diesel engine is started and ignited in winter, it should idle at low and medium speed for a few minutes, and then put into load operation when the cooling water temperature reaches 60℃.
Wrong practice 7: Not paying attention to the heat preservation of the engine body
Serious consequences that may be caused: reduced service life and damage to the engine
Correct practice: The temperature is low in winter, which can easily cause the diesel engine to overcool when working. Therefore, heat preservation is the key to using diesel engines well in winter. In northern regions, diesel engines used in winter should be equipped with cold-proof equipment such as insulation sleeves and insulation curtains. In addition, the thermostat plays an important role in the temperature rise of the diesel engine when it is working. Therefore, before entering winter, the thermostat should be checked for normal operation. The failed thermostat should be replaced in time, and it is not easy to spray, resulting in poor atomization and deterioration of combustion, which leads to a decrease in the power and economic performance of the diesel engine. Therefore, light diesel with low freezing point and good ignition performance should be selected in winter. Generally, the freezing point of the diesel engine is required to be 7-10℃ lower than the lowest temperature of the local season.
Choose BONOVO 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.bonovogroup.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com