Are they going to just drain the separator, change the filters, clean the stainer and add?[/quote]

Seems like that is the plan. Am not in the shop this morning. We are waiting for a delivery of a check valve from Denmark before going out. This machine is cobbled together with a second vertical separator having been added. A total of six filters I believe. A lot of room for trouble. Hopefully reason will prevail, or we will get lucky. I will point out the extra oil in the separator filters when we get there.