I don't have any experience with check sorters, but I do have experience with replacing hydraulic fluid in the printer :-) The museum in Binghamton, NY has an

I don't have any experience with check sorters, but I do have experience with replacing hydraulic fluid in the printer :-) The museum in Binghamton, NY has an IBM 1255 check sorter, which is puny in comparison to the 3890, which is a long, long, long machine.