Year of publication: 1998
Important changes in oil and machinery often go unnoticed because today's machines are often operated by semi-skilled and frequently changing people. They are not able to recognize a trend based on their daily handling of the plants. To avoid surprising failures, people try to take appropriate precautions with "preventive maintenance". However, this system incurs quite high costs. It can be even more expensive, however, if action is only taken when damage or failure of the machine occurs. By contrast, "condition-based maintenance" based on trend analyses offers an effective and low-cost alternative. These trend analyses are lubricant analyses that are carried out at regular intervals and are used to observe and comment on changes in relation to previous examinations. They do not only indicate when the oil needs to be changed, but also detect wear and impending damage in good time, thus optimizing maintenance costs. In addition, since oil changes are only carried out when required, less waste oil is produced, and the burden on the environment is reduced.