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Wuxi Lanhai Electric Motor Co.,Ltd

Add: 4#, Tianshi Road Shitangwan Town, Wuxi, Jiangsu, China


TEL: 0086-0510-83269982

FAX: 0086-0510-83269953

Email: info@wxlhdj.com

The Motor Should Avoid The Wrong Operation
Aug 22, 2017

The Motor should avoid the wrong operation

Motor error operation will seriously affect the life of the Motor, we should avoid the wrong operation of the Motor damage, let's take a look at the daily life, the Motor wrong way of doing what?

Wrong operation one

The diesel Motor is running when the oil is low

At this time due to lack of oil supply caused by the friction surface of the fuel surface is insufficient, resulting in abnormal wear or burn. To this end, before the start of the Motor and the operation of the diesel Motor to ensure adequate oil to prevent the lack of oil caused by pull cylinder, burner failure.

Wrong operation two

Immediately shut down with a load emergency stop or sudden unloading of the load

After the Motor is turned off, the cooling water is stopped and the heat dissipation capacity is drastically reduced. The heating parts are lost. The cylinder head, cylinder liner, cylinder block and other parts are overheated, cracked, or stuck in the cylinder. On the other hand, the Motor downtime without idle cooling, will make the friction surface oil shortage, when the diesel Motor will start again due to poor lubrication and wear. Therefore, the Motor should be unloaded before the load unloading, and gradually reduce the speed, no-load operation a few minutes (requires no-load operation for 3 minutes).

Wrong operation three

After the cold start is not warm up with load operation

Motor cooling start, due to oil viscosity, poor mobility, oil pump is insufficient, the friction surface due to lack of oil lubrication, resulting in abrupt wear and tear, and even the occurrence of cylinder, burner and other failures. Therefore, after the start of the cooling of the diesel Motor should be idle operation temperature, the oil temperature reaches 40 ℃ or more (in winter, when the cooling water reaches 60 ℃) when the load operation; machine starting should be linked to low speed, and order A block of driving a mileage, until the oil temperature is normal, full of oil before they can turn to normal driving.

Wrong operation four

Diesel Motor after the cold start throttle throttle

If the thunder throttle, the Motor speed increased sharply, will cause some of the friction on the machine due to dry friction and severe wear. In addition, the throttle when the piston, connecting rod and crankshaft force changes, causing severe impact, easy to damage the parts.

Wrong operation five

In the cooling water shortage or cooling water, oil temperature is too high to run

The Motor cooling water will reduce its cooling effect, the diesel Motor due to lack of effective cooling and overheating; cooling water, oil oil temperature is too high, will cause the diesel Motor overheating. At this time the Motor cylinder head, cylinder liner, piston components and valves and other major heat load, and its mechanical properties such as strength, toughness and other sharp decline, so that parts deformation increases, reducing the gap between the parts to accelerate wear, When there will be cracks, mechanical parts of the fault. Motor overheating will also worsen the diesel Motor combustion process, so that the injector work disorders, poor atomization, coke increased.

At present, the average life of foreign Motors in the normal case of more than 8000h, from the domestic use of the situation, the real indicators still have a certain gap. One of the major failures is the early wear of the cylinder liner, so solving this problem greatly increases the service life of the Motor.

1, the correct maintenance and maintenance of air filtration system

Air filter system failure will form the wear of the cylinder liner, the cylinder life greatly reduced, so the air filter has a higher demand, to use multi-level efficient air filter.

Always check and clean the dust of each part, to ensure that clean inside and outside, for the damaged parts to be replaced, to avoid grinding into the cylinder liner. Ensure that the filter and suction hose connection seal, and to ensure that the supercharger Motor outlet to the cylinder head does not leak.

2, the Motor temperature control

Corrosion of the cylinder liner is largely dependent on the operating temperature of the Motor. Tests show that when the coolant temperature drops to 40-50 ° C, the liner wear will be 5-6 times the normal wear and tear, and mainly corrosion wear, so keep the cooling system operating temperature does not exceed 90 ℃, will greatly limit Sulfur-containing vapor condensation in the cylinder liner, so as to achieve the purpose of reducing corrosion.