1、下天然气发电机组的气缸盖，刮清气缸套上部的炭灰和油污。

1. Lower the cylinder head of the natural gas generator set and scrape off the carbon ash and oil stains on the upper part of the cylinder liner.

2、拆下机体下窗口盖板，转动曲轴，将要拆下的天然气发电机组活塞转到上止点稍后的位置。

2. Remove the cover plate of the lower window of the machine body, rotate the crankshaft, and turn the piston of the natural gas generator set to a position later than the top dead center.

3、拆下连杆螺钉时，注意用手托住连杆盖，以防止坠入油底壳内，并防止碰伤轴瓦。

3. When removing the connecting rod screws, be careful to hold the connecting rod cap with your hands to prevent it from falling into the oil pan and damaging the bearing shells.

4、从连杆下端将活塞连杆往上推，自天然气发电机组气缸套上口沿气缸中心线取出活塞连杆，取出时严防连杆碰伤气缸套内壁。

4. Push the piston connecting rod upwards from the lower end of the connecting rod, and take out the piston connecting rod from the upper port of the cylinder sleeve of the natural gas generator set along the centerline of the cylinder. When taking out, be careful not to damage the inner wall of the cylinder sleeve by the connecting rod.

将活塞放在机油内加热至100~120C，取出活塞销。拆下活塞后，把天然气发电机组连杆轴瓦、连杆盖和连杆螺钉仍装到相应的连杆体上，并进行清洗和检查配合面的磨耗情况或更换损坏的零件。希望以上的介绍能给用户带来帮助。

Heat the piston in engine oil to 100-120C and remove the piston pin. After removing the piston, install the connecting rod bearing shells, connecting rod caps, and connecting rod screws of the natural gas generator set onto the corresponding connecting rod body, and clean and inspect the wear of the matching surface or replace damaged parts. I hope the above introduction can be helpful to users.