This is an excerpt from a recent educational article by YASKAWA:

Promises of zero maintenance from some robot manufacturers for extended periods may sound good, but are these claims accurate? The answer is, NO! Robot and cobot owners should expect to perform encoder battery replacement and regularly inspect robots as prescribed. So, buyer beware! With this in mind, there are key maintenance concepts robot buyers should consider for maximum return on investment before making a robot purchase:

To read the complete article, click on this link: https://www.motoman.com/en-us/about/blog/b-i-g-thoughts-on-zero-maintenance

Sincerely,

Julius Frago,
The Automation School