​发电机组换件修补是很重要的一个环节，零部件选取的是否适宜、修补技能是否正确都与发电机组能否正常作业严密相关。下面来介绍下瓦斯发电机组换件修理的经验：

The replacement and repair of generator set is a very important link. Whether the selection of parts is appropriate and the repair skills are correct are closely related to whether the generator set can operate normally. The following is the experience of replacement and repair of gas generator set:

1、装配须注意清洁。若装配时机体内部混械杂质和尘土、油泥，不仅会加快零件磨损，而且还容易引起油路堵塞，产生烧瓦抱轴等事故。如更换新喷油器时须在80℃的干净中清除防锈油，并作滑动试验后再装配使用。

1. Pay attention to cleaning during assembly. If there are mixed mechanical impurities, dust and oil sludge in the body during assembly, it will not only accelerate the wear of parts, but also easily cause the blockage of the oil circuit, and lead to accidents such as burning the bearing and holding the shaft. When replacing a new fuel injector, the antirust oil must be removed in a clean water at 80 ℃, and then assembled for use after a sliding test.

2、注意装配技术要求。修理人员一般对气门间隙、轴瓦间隙等是比较重视的，但对有些技术要求却常常被忽视，如安装气缸套时，上平面应高出机体平面0.1毫米左右，否则就会发生气缸漏气或连续冲坏气缸垫的故障。

2. Pay attention to the assembly technical requirements. The repair personnel generally pay more attention to the valve clearance and bearing bush clearance, but some technical requirements are often ignored. For example, when installing the cylinder liner, the upper plane should be about 0.1 mm higher than the plane of the body, otherwise the cylinder will leak or the cylinder gasket will be damaged continuously.

3、注意有些配合件要成对更换。喷油器针阀偶件、柱塞副和出油阀副三大精密偶件要成对更换，这一点一般能做到。但对其它一些配件却不注意成对更换，如更换齿轮时，只更换磨损较严重的一个，装配后由于啮合不好，噪声加大，磨损加剧，使用寿命将大大缩短。又如更换气缸套时，也应更换活塞和活塞环等。

3. Note that some mating parts should be replaced in pairs. The needle valve pair, plunger pair and outlet valve pair of the fuel injector should be replaced in pairs, which can generally be done. However, some other accessories are not replaced in pairs. For example, when replacing the gear, only one with severe wear will be replaced. After assembly, the service life will be greatly shortened due to poor meshing, increased noise and increased wear. For example, when replacing the cylinder liner, the piston and piston ring should also be replaced.

4、变型产品的零部件不一定通用。有的机厂生产某种型号的变型产品的不少零部件是不通用的。如S195B型机的曲轴，主轴承、缸套、活塞、进排气门、气门导管和气门弹簧等零部件不通用。

4. Parts of variant products are not necessarily universal. Some machine factories produce many parts of a certain type of variant products that are not universal. For example, the crankshaft, main bearing, cylinder liner, piston, intake and exhaust valve, valve guide and valve spring of S195B engine are not universal.

5、同一型号的不同加大件(配件)不通用。在采用修理尺寸法时，可选用加大尺寸的零件，但须认准是加大哪一级的零件。如次磨曲轴后只能选用加大0.25毫米的轴瓦，若选用加大0.5毫米的轴瓦，轴瓦的刮削量加大，不仅浪费时间，而且保证不了修理质量，也会大大降低轴瓦的使用寿命。

5. Different enlarged parts (accessories) of the same model are not common. When the repair dimension method is adopted, the parts with larger size can be selected, but it is necessary to identify which level of parts are enlarged. For example, after grinding the crankshaft, only the bearing bush with an increase of 0.25 mm can be selected. If the bearing bush with an increase of 0.5 mm is selected, the scraping amount of the bearing bush will increase, which not only wastes time, but also can not guarantee the repair quality, and will greatly reduce the service life of the bearing bush.

6、防止零件错装、漏装。就单缸机而言就有一千多个零件，而且大多数有一定的安装位置及方向要求，如不注意，就容易错装或者漏装。如涡流室镶块位置装反，燃油不能直接通过起动喷孔，使发动机起动困难或根本不能起动。

6. Prevent wrong and missing parts. For single-cylinder engines, there are more than 1000 parts, and most of them have certain installation position and direction requirements. If you do not pay attention, it will be easy to install or miss. If the swirl chamber insert is installed reversely, the fuel cannot directly pass through the starting nozzle, making it difficult or impossible for the engine to start.

希望小编的介绍能够对您有所帮助，如果您想要了解更多发电机组的知识，您可以浏览我们网站//www.gz-yanye.com，我们会为您提供满意的服务。

I hope that Xiaobian's introduction can help you. If you want to know more about generator sets, you can visit our website //www.gz-yanye.com , we will provide you with satisfactory service.