What are the wrong maintenance ideas when repairing diesel generator sets

When servicing diesel generator equipment, some maintenance personnel do not understand some issues that should be paid attention to during maintenance, resulting in "habitual" errors often occurring during disassembly and assembly, which affects the quality of mechanical maintenance. For example, when installing the piston pin, the piston pin is directly driven into the pin hole without heating the piston, resulting in increased deformation of the piston and increased ovality: excessive scraping of the bearing bush when repairing the diesel generator, and the anti-friction alloy layer on the surface of the bearing bush is scraped off , causing early wear due to direct friction between the steel back of the bearing and the crankshaft; do not use a tensioner when disassembling interference fit parts such as bearings and pulleys, and hard knocking can easily cause deformation or damage of the parts; unsealing new pistons, cylinder liners, fuel injection When removing parts such as the nozzle assembly and plunger assembly, burning the oil or wax trapped on the surface of the parts will cause changes in the performance of the parts, which is not conducive to the use of the parts.

When repairing diesel generators, some maintenance personnel often only pay attention to the maintenance of pumps, fuel pumps and other components, but neglect the maintenance of various instruments and other "small parts". They believe that these "small parts" do not affect the work of the machinery. Even if they are damaged, it does not matter. As long as the machinery can move, they can be used. Who knows that it is the lack of maintenance of these "small parts" that causes early wear and tear of the machinery and shortens its service life. Such as oil filters, air filters, hydraulic oil filters, water temperature gauges, oil temperature gauges, oil pressure gauges, sensors, alarms, filters, grease fittings, oil return joints, cotter pins, fans used in equipment The air guide cover, drive shaft bolt lock plate, etc., these "small parts" are indispensable for the normal operation and maintenance of the equipment. They are crucial to extending the service life of the machine. If you do not pay attention to maintenance, you will often "due to small losses". "large", leading to equipment failure.