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improper operation of diesel engine fault
Update:2018-10-15 10:30 Tags:
Due to improper operation of diesel engine fault, in the diesel engine fault in a large proportion, mainly in the following aspects

1, diesel engine
cold start Meng throttle. Some of the drivers in the cold start of the diesel engine after the total love boom a few feet throttle, this is a bad habit. Because diesel engine parked for a period of time, the surface friction of lubricants have been lost and cooler startup due to low temperature, oil viscosity, liquidity difference, lubricating oil can't chang flow to various parts of the lubrication, with the increase of engine speed, although oil pump fuel supply quantity and pressure will increase, but always lag in need of lubrication friction surface, resulting in start friction moment is short of oil. If fierce boom throttle, diesel engine speed increased sharply, some of the friction surface to produce dry friction, resulting in severe wear. In addition, when the throttle piston, connecting rod and crankshaft stress changes, caused by the severe impact, easily damaged parts. Therefore, the diesel engine should be strictly prohibited after starting the boom.

2, after a cold start without warm car with load operation. Diesel engine cold start due to low temperature, oil viscosity, liquidity difference, so that the oil pump oil supply shortage, resulting in friction surface oil shortage and the lack of lubrication, cause rapid wear, or even cylinder bush burning fault. Therefore, after the cold start of the diesel engine should be idle to heat up, until the oil temperature reaches more than 40 DEG C and with load operation; starting a vehicle should be hung low gear, and sequential to each gear driving a mileage, until the oil temperature is normal, fuel after the full, normal running.

3, diesel engine with load or load unload suddenly stopped immediately after parking. Extinction of diesel engine cooling water circulatory arrest, cooling capacity decreases sharply, causing the cooling water boiling, produce blisters, heat a loss of cooling, is easy to cause the cylinder cover, cylinder liner, cylinder body and parts overheating, crack, or excessive expansion card died in the cylinder to the piston. On the other hand, when the diesel engine is stopped, the engine is stopped to cool down, because the friction surface of the oil is insufficient, and the diesel engine is started again due to poor lubrication and increased wear. Therefore, diesel engine flameout ago should dismount load, and to gradually reduce speed, empty running a few minutes, the oil temperature dropped to below 40 DEG C when to stop.

4, diesel engine running in the cooling water shortage or cooling water, oil temperature is too high under the condition. Diesel engine cooling water shortage, the effect of the cooling effect, the diesel engine can not get the cooling, leading to overheating of diesel engine. Cooling water, oil temperature is too high, then caused the diesel engine overheating. At this time the cylinder cover, cylinder liner, a piston assembly and valve and main heating heat load, its mechanical properties, such as strength, toughness and sharp decline. In order to make the parts deformation increases, destroyed the fit clearance between the parts, to accelerate the mechanical wear and tear. There will be a serious injury, or due to thermal expansion and mechanical jamming.
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