Maintenance and inspection items of diesel generator
Because the standby diesel generator set is static for a long time, various materials in the equipment will undergo complex chemical and physical changes with engine oil, cooling water, diesel oil, air, etc., which will cause hidden or even continuous damage to the diesel generator set. In order to prolong the service life of diesel generator maintenance group and its efficiency, in addition to routine maintenance, we can't ignore the daily maintenance of diesel generator set. Only by starting from the details can the diesel generator set be in a good standby state.
I. Fuel injector
1. Pull out the fuel injector after installation, and replace it with a brand-new O-ring when reinstalling.
2. The three O-ring seals of 2.LTA10, NTA855, VTA28, KTAA19-G2A(CPL1170) and KTA19-G4(CPL4153) injectors are the same, and the part numbers are the same.
For: 193736.
3. The injectors of 3.KTA50-G3, KTAA19-G2(CPL739), KTA38-G3 and G5 have three different O-rings, and the part numbers are 193736 and 205216 respectively.
3010510。
4. Poor sealing of O-ring of injector or failure of STC valve will lead to no oil pan under diesel oil leakage.
Second, the cylinder head
1. If the water passage of diesel generator leaks due to lack of water and high turbidity, it is likely to cause cracks in the position of valve seat ring of cylinder head, and the rubber ring of copper sleeve of injector melts at high temperature, resulting in production.
Cracked cylinders should be scrapped.
2. The copper sleeve and rubber ring of the fuel injector may be damaged after long-term operation. If there is water at the top of the oil pan or piston, check the bottom plane of the cylinder head for cracks and inject fuel.
Whether the copper sleeve and apron are damaged.
3. If the engine oil leakage of the cylinder head is found to be serious before overhaul, the plane of the cylinder head should be ground (sent to Dongguan Liansheng grinder for treatment) during overhaul. Maximum grinding amount of cylinder head
For 1mm, it is suggested that the grinding amount should be limited to 0 every time. 10mm。 The minimum thickness of N series cylinder head bottom is 110. 24 mm, the minimum value of K series cylinder head is 119.76mm。
