prohibited the filling in the diesel engine operating temperature is too high, coolant or water to wash the bodys.
Cause piston ring scrapes the direct cause of the destruction caused by the lubricating oil film between piston ring and cylinder. The main influencing factors are: the piston and the cylinder with the gap is too small; piston ring assembly improper assembly free to compression or stretching caused by the mouth ring deformation; incorrect assembly cylinder or adapter cylinder head, causing the liner deformation; The diesel engine long-term operation at high temperatures, causing the lubricant film break ring; Insufficient grease or serious pollution.
Maximize the use of hot start when the engine starts; when the operation of the diesel engine in winter the temperature should be maintained within the normal range, prohibit Meng throttle forced warming emergency brake parking, and other harmful habits; to prevent the load surge at low temperatures, fierce reduction and long idle, and to minimize the number of cold start. Really good job in the operation of diesel engines running in the new machine and overhaul work, mechanical work to maintain a moderate speed and a reasonable load.
Strengthening the "filter" and the timely replacement of the filter. Information, 1g of dust into the cylinder allows the cylinder the upper wear 0.01mm, so that the piston wear 0.75g and piston ring wear 0.009mm. So must be forced on a regular basis to maintain the air filter, oil filter, diesel filter.
Proper selection, inspection and replacement of oil should be used in the same batch, same manufacturer, same viscosity and quality grades of lubricants is strictly prohibited lubricant mix of different viscosity and quality grades, filling the election in no wind, pollution-free occasion. to prevent dust and water and other contaminants from entering.
The correct selection should be based on climatic conditions and the performance of diesel engine fuel, and seriously calibration and adjustment of the fuel injector fuel injection pressure and injection pump fuel supply advance angle to ensure the operation of diesel engines in the best state.
Avoid the diesel engine without the cooling water starts or prolonged overheating state operation, prohibited the filling in the diesel engine operating temperature is too high, coolant or water to wash the body.
2.2 improve the quality of diesel engine repair
Strengthen the parts clean and pollution prevention in each process matching and assembly work. Correct matching and assembly of the piston ring. High-speed diesel engine piston ring auto dvd and car dvd player surface plated chromium, molybdenum, and other spray process, prohibit the use of grinding ring to trim the "backlash"; application of special tools to install piston rings, piston ring opening should be prohibited from free expansion and compression, to prevent the assembly methods of inadequate piston ring distortion; piston rod assembly into the cylinder vigorously pounding the prohibition to prevent the piston ring and cylinder bump and cause damage, cracks and stress concentration.
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