The running-in methods of diesel generator sets can be divided into cold running-in and hot running-in. The operation methods of the two running-in methods are not the same, but the ultimate goal is to achieve a normal fit clearance between the parts. The specific running-in method to choose can be determined according to the company’s own situation. The following are the specific operating methods of the two running-in methods.
1. cold running-in
Diesel generators can be started without using batteries or manually prying the flywheel of the diesel generators to make the diesel engine run. After cold running-in, the diesel generator should drain all the lubricating oil in the oil pan and clean it with cleaning oil.
2. Thermal running-in
The running-in should be carried out under no-load conditions. At this time, the running-in speed of the diesel generator can be controlled within 1300r/min. After the various technical indicators meet the requirements of no-load running-in, then the on-load thermal running-in should be carried out. This period of time is generally about 60 hours, and the operator of the diesel generator set can also decide according to the specific situation. In the process of adding load, there must be a process of gradually increasing the load from small to large, until the diesel engine reaches the normal standard of loaded heat running-in. During the thermal running-in process, the temperature of the lubricating oil should be controlled within the range of 651C-75°C, and the temperature of the cooling water should be controlled within the range of 70°C-80°C. When your Cummins diesel generator set is replaced with more new parts, it must be put into use after a period of running-in. Because the surface of the newly assembled parts is relatively rough, and the normal fit gap between the parts cannot be reached, the operation without running-in will greatly reduce the working efficiency of the unit, and even reduce the service life of the unit.
Post time: Jul-06-2021