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Before a new unit is put into operation, it must be broken in according to the technical requirements of the diesel engine instruction manual. Make the surface of the moving parts more polished and prolong the service life of the diesel engine.
During the unit break-in period, you should try to avoid running the engine at no load and low load for a long time. Otherwise, it will not only increase the oil consumption rate, exhaust leakage of oil/diesel, but also lead to carbon deposits on the piston and piston ring groove, fuel combustion is not clean to dilute the oil.
Therefore, when the engine is running at low load, the running time should not be more than 10 min. as a standby generator set, at least 4 hours of full-load operation per year, in order to burn the carbon in the engine and exhaust system, otherwise it will affect the life and quality of the moving parts of the diesel engine, resulting in serious consequences.
Generator set break-in method steps:
(1) According to the former method to carefully check the no-load idling break-in generator set. After all aspects are very normal, you can start the unit.
After starting the unit, adjust the speed to idle, run for 10 minutes. And check the oil pressure, listen to the diesel engine running sound, and then stop.
(2) Open the cylinder block side cover plate, touch the temperature of the main bearing, connecting rod bearing and other places. Requirements should not be higher than 80 ℃, that is, not too hot for normal.
And observe the operation of the parts, if the temperature of the parts and the structure are normal, and then continue to break-in according to the following specifications.
(3) Gradually increase the engine speed from idle to the rated speed, speed increments of 2000r/min.
However, it should run continuously for 2min at each speed, and the maximum no-load speed running time should be no more than 5-10min.
During the break-in period, the cooling water temperature should be kept at 75-80℃ and the oil temperature should not be higher than 90℃.
(4) Load for break-in, it must be normal in all aspects of the unit, and the load meets the technical requirements as a prerequisite. Load break-in at rated speed, the load is gradually increased.
The first 25% of the rated load break-in; 50% of the rated load break-in; 80% of the rated load break-in.
During the engine break-in period, check the oil level every 4 hours, replace the lubricating oil, and clean the oil sump and oil filter.
(5) Check the tightness of the main bearing nut, connecting rod nut, cylinder head nut, injection pump and injector bolts; check the valve lash and calibrate if necessary.
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