In the daily use of the loader, some improper operating habits may seriously damage the performance of the equipment and even shorten its service life. The following are a few operating errors and correct operation methods that require special attention:
First, the start of the slamming throttle behaviour.
When the engine is just started, due to low body temperature, high oil viscosity, the oil does not flow quickly to all lubrication points. At this time, if the throttle, will lead to rapid increase in engine speed, but the oil supply for a short period of time can not meet the lubrication needs of the moving parts. This will not only cause dry friction and intense wear between moving parts, but also increase the operating resistance, resulting in damage to pistons, connecting rods, crankshafts and other parts. For diesel engines equipped with turbochargers, slamming the throttle may also destroy the oil seal due to poor lubrication, triggering turbocharger failure. Therefore, the loader should run smoothly at low speed after starting, and it is strictly prohibited to blow the throttle.
Second, the operation process directly replenish the cooling water.
Insufficient cooling water will lead to diesel engine overheating. However, directly replenishing cooling water when the diesel engine temperature is too high will cause a large temperature difference in the entire cooling system, which in turn will cause brittle cracks and leakage of the cylinder head, cylinder liner, cylinder block and other components. The correct approach is, when the diesel engine temperature is too high, first run at a slightly higher speed no-load operation, until the water temperature drops to about 50 ℃, and then switch off the engine, exhaust and slowly inject cooling water.
Third, with load shutdown or immediately after the operation shutdown.
Loader with a load or immediately after the operation shutdown, will lead to the cooling system to stop working, the heat dissipation capacity drops sharply. At this time, a large amount of heat generated by the work can not be distributed in a timely manner, which will lead to overheating and high-temperature erosion of machine parts. At the same time, the oil will be deteriorated due to high temperature, resulting in the next start-up difficulties. For supercharged diesel engines, sudden shutdown may also make the supercharger heat up to extremely high temperatures, damaging the sealing ring. Therefore, the loader should be unloaded before switching off the engine, and no-load running for 3 to 5 minutes, to be machine temperature and water temperature down to a safe range before stopping.
Fourth, before stopping the throttle.
Some drivers mistakenly think that before stopping the throttle is good for the next start, but in fact this will lead to incomplete combustion, black smoke and carbon increase. At the same time, slamming the throttle will also increase the wear and tear of moving parts, and make the unburned fuel flow into the oil sump to dilute the oil. The correct operation is to stop the machine after running smoothly at low and medium speeds under no load.
In summary, the correct loader operation method is vital to extend the life of the equipment and improve work efficiency. Drivers should strictly abide by the operating procedures to avoid the above common misoperation.
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