[RickM]

Nice score there.

I would stick with hand cleaning with a mild solvent. Too many nooks and crannys to hold water and bite you in the A$$ later.

I take it these are 3-phase and you have single phase service. Your options are a static phase converter, rotary phase converter or a frequency drive.

A variable frequency drive is the modern, "solid state" solution that would be my first choice. Not only do you solve the phase switch with a compact instrument but you can digitally control RPMs in forward or reverse. If you sniff around Ebay you can find some great deals on them. Shop for one by HP capability. Ebay item number: 130153468786 is up there in price but outlines the benefits.


Add: I may have some phase converter build plans. I'll take a look.