Wrong operation method and daily maintenance of MTU diesel generator

In the process of using the diesel generator, it is necessary to use in strict accordance with the operation steps, to avoid the use of the wrong method to operate the generator, can not be run when the amount of oil is insufficient, diesel generator cooling machine start, etc., are the wrong operation method. The use of diesel generators need to do a good job of daily maintenance, so that the service life of the generator can be increased, daily check whether the diesel is sufficient, check the water tank and antifreeze, etc., the following details for you to introduce.

First, the wrong operation of the generator method

1. Diesel generator runs when the oil is insufficient

When the diesel generator runs in insufficient oil, it will cause insufficient oil supply to the surface of each friction pair due to insufficient oil supply, resulting in abnormal wear or burns. Therefore, before the start of diesel generator and diesel engine operation process to ensure that the oil is sufficient, to prevent due to the lack of oil caused by cylinder, burning tile failure.

2.With load emergency shutdown or sudden load unloading immediately shut down

Diesel engine generator flout after the cooling water circulation stopped, cooling capacity sharply reduced, heated parts lose cooling, easy to cause cylinder head, cylinder liner, cylinder block and other parts overheating, crack, or excessive expansion of the piston stuck in the cylinder liner. On the other hand, when the diesel generator is stopped without idle cooling, it will make the friction surface oil deficiency, when the diesel engine starts again, it will aggravate the wear due to poor lubrication. Therefore, the diesel generator should be unloaded before extinguishing the load, and gradually reduce the speed, no-load operation for a few minutes.

3. Start the diesel generator cooler

When the diesel generator cooler starts, due to the large viscosity and poor fluidity of the oil, the oil supply of the oil pump is insufficient, and the friction surface of the machine is poor due to the lack of oil lubrication, resulting in sharp wear, and even the failure of cylinder pulling and tile burning. Therefore, the diesel engine should run at idle speed to heat up after cooling and start, and then run with load when the oil temperature reaches more than 40℃; The machine should be mounted in low gear at the start, and drive a period of mileage in each gear step by step, until the oil temperature is normal and the oil supply is sufficient, then it can turn to normal driving.

4. The diesel engine explodes the throttle after cold start

If the throttle, the diesel generator speed rises sharply, will cause some friction surface on the plane due to dry friction and severe wear. In addition, the piston, connecting rod and crankshaft acceptance force changes when the accelerator, causing violent impact, easy to damage the parts.

5. Operate under the condition of insufficient cooling water or excessive temperature of cooling water and oil

The insufficient cooling water of diesel generator will reduce its cooling effect, and the diesel engine will overheat because it can not be cooled effectively. The oil temperature of cooling water and oil is too high, which will also cause the diesel engine to overheat. At this time, diesel generator cylinder head, cylinder liner, piston components and valves are mainly subjected to heat load, its mechanical properties such as strength, toughness, etc. decline sharply, so that the deformation of parts increases, reduce the clearance between parts, accelerate the wear of parts, serious cracks, parts stuck fault. Diesel generator overheating will also worsen the diesel engine combustion process, so that the fuel injector work disorders, poor atomization, carbon accumulation.

2. Daily maintenance of diesel generators

1. Check whether the diesel in the tank is sufficient, whether the internal environment is clean and hygienic, and ensure that there is no air in the pipeline.

2. Check whether the water in the water tank or antifreeze and the engine oil of the generator are in the specified position.

3. Check whether the circuit wiring is normal, whether the connection is firm.

4. Check whether the liquid level of the battery is at the specified height and whether the power is sufficient.

5. See whether each component is in normal operation and whether there is debris piled up.

6, check the generator is not damaged, there is no leakage.

7. Check whether the belt has been relaxed, or the degree of wear, and whether the rotation key has been tightened.

8.Check whether the mains circuit breaker is in the switching state, to ensure that the mains and mechanical do not overlap, so as to avoid serious accidents.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.