After the unit’s oil system passes the inspection, does the bearing section still need to be opened for inspection?

This post was last edited by CHANGBAISHI on 2022-2-24 08:24. It is advisable to gradually adjust the inspection and maintenance intervals based on usage patterns and operating time. Generally, equipment requires regular maintenance cycles for major, medium, and minor repairs, but these cycles can be adjusted as appropriate depending on the actual circumstances. The inspection is necessary. For example, the clearances of various bearings, and whether the lapped surfaces of the bearing shells are worn out, etc. Removal of deposits from the tank bearing housing,,,,, Standards often arise from practice. As long as it is practically possible, it needs to be dealt with. Execution must be carried out in a regulated manner; without standards, execution is not allowed. For reference.

Monitor the operating status of the equipment; no inspection is required if there are no issues.

For new equipment, it’s recommended to have the roof inspected again; since there was no witness to the original installation, it’s impossible to ensure its cleanliness

This post was last edited by we11we11 on 2022-4-3 at 14:54. In our previous projects, once the oil transportation was completed, we no longer checked the bearing shells, as blind flanges were installed at the oil inlets of those bearing shells

There are two scenarios. First, for newly commissioned units, it is necessary to check the bearing shells, especially the gap between the rotor and the lower shell. When flipping the shells, use a clean air blower first; flip them upward starting from the oil inlet hole. After the lower shell is removed, check the oil inlet hole and clean it. Second, in the case of units that are restarted after being shut down for maintenance, the same checks must be carried out. In particular, use the tip of your finger to feel whether there are any tiny hard particles remaining in the oil, as even after cleaning the filters in the oil circuit, it is difficult to ensure that no such particles remain in the corners of the tee valves. In short, to ensure long-term use, inspections after proper flushing are necessary, regardless of whether it is required by regulations or not; however, the quality of reinstallation must be guaranteed.

If a blind flange is installed at the oil inlet of the bearing, it is not necessary; if no blind flange is present, it must be opened for inspection. If only the oil lines are leaking, there is no need to check the bearings and adjustment system if there is no leakage there.