Air Compressor Maintenance

[Alan]

Is there scheduled maintenance that should occur with the air
compressor on my 87FC35?

This has probably been addressed somewhere in here, but I looked and
couldn't find it. I'm not sure how the compressor is lubricated, and
therefore wonder if there is some lubricant that needs to be changed.
Also is there a filter?

I check for water in the tanks occasionally, but there is never any in
them.

Thanks,
Alan Johnson
87FC35