Maintenance methods for diesel generators:
Inspection of battery 1. Since the backup power supply is not often put into use, whether the generator can start properly is the key to the maintenance of the battery. If there is a problem with the battery pack, the more common situation is that there is no voltage and no current. At this time, the sound of the induction valve suction in the start-up motor can be heard but the connecting shaft can not be moved. There are three reasons why the battery battery can not be shut down due to problems. The use of stopping charging the battery during the test will cause the battery to lack power. 2. The use of mechanical oil pumps has a large amount of pump oil at Pidaichuandong's rated speed. However, the lack of battery power supply causes the springs in the stoppage valve to be unable to seal the fuel ejected from the four oil holes due to insufficient suction of the electromagnetic valve. Can not stop. 3. Domestic batteries usually have a life span of two years without regular replacement.
Second start check of solenoid valve. When the generator is running, people summarize a set of inspection methods of "one look, two ears, three touches, and four smells". Listening at startup is a very important step. In the case of the original Cummings generator in the United States, it can be started only three seconds after pressing the boot button. Two clicks can be heard in three seconds. Once you can't hear the second sound, check if the start solenoid valve is working properly. If the electromagnetic coil burns off the generator, of course, it can't start.
The third diesel oil, lubricating oil inspection. Because the unit has long been in a static unit itself, various materials will have complex chemical and physical changes with oil, cooling water, diesel, air, etc., thus "releasing" the unit. Attention should be paid to the problem of oil. For fire safety, diesel fuel tanks are usually placed in a closed room. Due to the change of temperature in the atmosphere, water vapor condenses into water beads attached to the inner wall of the fuel tank and flows into diesel fuel, resulting in diesel oil with excessive water content. Diesel into the diesel engine high-pressure pump will rust the precision coupling. -The plunger seriously damaged the unit. Generator lubricating oil is a long storage period of the physical and chemical properties of lubricating oil will change resulting in deterioration of lubrication conditions during the unit work easy to cause generator parts damage.