What are the important things to monitor with a grease during maintenance operations?

The parameters to be monitored:
• Significant increases in temperature and / or noise and vibration; this could be an indication of changes in the grease's operating conditions.
• The state of the grease: during maintenance operations, it is a good idea to check that the grease has not been polluted by any foreign bodies
• Changes in consistency: Areas of the grease may harden – this can sometimes be a sign that the grease has lost some of its lubricating oil. Conversely, if the grease has lost some of its consistency, that can be the result of a mix leading to a deterioration in its qualities. In both scenarios, questions should be asked about how suitable the grease is for the application in question.