In the previous section, we talked about the disassembly and repair of oil-free air compressors. In this section, we talked about the aspects of the disassembly and repair of gear boxes and steam turbines？

1, clean the gear shaft, check the gear mesh top clearance, side clearance and contact area。Adjust the gear shaft to make its levelness, parallelism, clearance and contact area of each part meet the standard requirements;

2, measuring the cylindricity of each journal, scraping each bearing shell, so that the bearing gap, contact Angle and contact area meet the standard requirements。

In addition, the turbine disassembly inspection and repair include:

1. Remove the rotor dirt, check the damage of rotor blades, seals and other parts, and replace the damaged parts。

2, measure the radial and axial runout of each part of the rotor, measure the cylindricity of the journal, and do dynamic balance check;

3. Remove the dirt of the partition board and static blade, check the damage of the static blade and the seal between stages, and replace or repair the damaged parts;

4, clean and check the main valve, speed control valve, oil motor, governor and other parts。