The maintenance of diesel generator set is to restore the skill performance of equipment, troubleshoot or eliminate the hidden trouble, and extend the service life of the equipment. Understanding the maintenance points can reduce the bad behavior in the maintenance process. Here are some common bad behaviors you can avoid by comparing them.
1. The quality of “small” is not paid attention to, because of the “small” loss of “big” lead to increased failure.
In equipment maintenance operations, some maintenance personnel often only pay attention to the maintenance of pumps, fuel pumps and other components, but ignore the maintenance of all kinds of instruments and other “small parts”. Which does not know it is these “small” lack of maintenance, leading to early mechanical wear, shorten the service life. Such as equipment used oil filter, air filter, hydraulic oil filter, water temperature meter, oil temperature meter, oil pressure meter, sensor, alarm, filter screen, butter nozzle, oil return joint, cotter pin, fan hood, drive shaft bolt lock piece, such as do not pay attention to maintenance, often “penny wise and pound wise”, resulting in the occurrence of equipment failure.
2. Parts decontamination, cleaning is not thorough, early damage, corrosion often occur.
During the maintenance of equipment, it is of great significance to remove the oil and impurities on the surface of parts and components correctly to improve the repair quality and prolong the service life of machinery. If the debris in the bolt hole and the sand in the hydraulic components are not completely removed, the bolt torque is insufficient, the piston ring is easy to break, the cylinder pad ablative, the hydraulic components early wear: when overhaul, do not pay attention to remove the oil or impurities accumulated in the filter, lubricating oil channel, etc., so that the maintenance work is not thorough, reducing the equipment fault free running time.
3. Maintenance taboo forget the brain, hidden fault frequent.
When maintaining equipment, some maintenance personnel do not understand some problems that should be paid attention to in maintenance, resulting in frequent “habitual” errors in disassembly and assembly, which affect the maintenance quality of machinery. For example, when installing the piston pin, the piston pin is directly driven into the pin hole without heating the piston, resulting in the increase of piston deformation and ovalality: excessive shaving of the bearing bush during maintenance of the diesel generator, the antifriction alloy layer on the bearing bush surface is scratched off, resulting in early wear of the bearing steel back and the crankshaft direct friction; When disassembling interference fit parts such as bearings and pulley, do not use the tension device, hard knocking, easy to cause deformation or damage of parts; When opening new piston, cylinder liner, nozzle assembly, plunger assembly and other parts, burning the oil or wax sealed on the surface of the parts will change the performance of the parts, which is not conducive to the use of parts.
These bad behaviors summarized above will lead to low maintenance quality and poor reliability of equipment. So it needs to be taken seriously.
Post time: Mar-24-2023