Reciprocating compressor maintenance warranty period

Isn’t it not included when purchasing?

In reciprocating compressors, in addition to the piston rings which are vulnerable components, the seal ring sets and valve plates are also such components. As long as it is not overloaded and started frequently, it is basically a symbolic disassembly for inspection, such as on a quarterly, semi-annual, or annual basis. For reference.

During the 8000H inspection, it was confirmed that the bearing clearance met the specified requirements; there was no friction, cracks, or wear, and the bearings had not been replaced. During operation of 1860H, it stopped due to high temperature of 75°C caused by grinding damage. Are there any standards regarding the warranty period after maintenance, to determine whether operational time requirements have been met?

This shall be subject to the terms of the contract. If the contract stipulates that it must be indicated according to a certain standard. It will likely take some effort to find evidence once something has happened. There are also factors related to usage and maintenance involved. If accountability is to be pursued, the first step is to identify the causes from the aspects of manufacturing processes and usage. Regarding the quality of maintenance, for large-scale equipment, the commissioning phase usually lasts 24 hours, after which continuous operation for 72 hours is required to consider it as acceptance. These data are all specified in the contract. If there are other additional insurance coverages, they also need to be specified in the contract. If analyzing the reasons for equipment damage, it’s best to send photos of the damaged equipment along with relevant information so that we can discuss and analyze them to determine the exact cause. If it’s just a regular lawsuit, they probably don’t have much confidence; for reference only.

We are the maintenance workshop of an organization, and we don’t have a contract.

The alloy layers of the bearing shells in the other 6 compressors have also peeled off. With the equipment stored outdoors in the north over a period of 5 years before installation and use, is it possible that the alloy has undergone structural changes due to exposure to cold and hot weather over such a long time?

Then we need to analyze the reasons. Generally, it needs to be inspected after 72 hours of continuous operation. The quality of maintenance is just one aspect of the factors that cause problems; unreasonable usage patterns are also factors that cannot be ignored. Only by analyzing the reasons can a targeted conclusion be drawn. I remember a case where the operator adjusted the oil volume at the lubrication point by referring to the sight glass, which resulted in an immediate interruption of oil supply to that point and subsequent damage to the bearing. First, the quality of maintenance was blamed; in the end, it was determined that the operators were to blame. For reference.

This post was last edited by qwl on 2022-3-2 09:38 Bearing bush