日韩欧美千人斩一区二区_成年女人免费视频永久vip_久久午夜无码鲁丝片秋霞_日韩 在线 中文_麻豆一区网址_亚洲人成激情电影_超碰中文字幕91_可以看女生隐私部位的软件_午夜精品aaa免费视频观看在线_飘雪影院在线观看免费版高清电影

1. There is a deviation during the assembly of the piston rod and packing box, which causes local mutual friction and should be adjusted in a timely manner;
2. The sealing ring holding spring is too tight and has high friction force, which should be adjusted appropriately;
3. The axial clearance of the sealing ring is too small, and the axial clearance should be adjusted according to the specified requirements;
4. When the fuel supply is insufficient, it should be increased appropriately;
5. The running in of the piston rod and sealing ring is poor, and it should be strengthened during matching research;
6. Impurities mixed in gas and oil should be clean and kept clean.
The above is the cause of overheating of the piston rod.