Yes Rotaprint machines were once sold by AB Dick.I believe that press has an inverter motor control. These devices do fail and prevent motor from running. No pump motor also?
https://en.wikipedia.org/wiki/Power_inverter
First off, the term Press was hijacked by the Toner Tots. If its toner, ink jet and has coronas and fuser oil it is now a press.
Toner shortages, Parts made overseas. Not a problem for your press?
You may be a toner tot if you
The goal is to make sure the head is Parrell to the blanket. This will assure your form rollers can be adjusted also properly. Twisted T51 frames can happen. Do you have a manual? If not I have many from ABDick/PTek from 360 up to 75 DI and some ctp
Is this a Super T51 or just the standard one? There is an overall pressure eccentric pressure stem. As a tech I followed the procedure in the manual and some of my own steps. The frames on the head could be twisted also. That affects the forms also. I would level it also by loosening the T51 ty...
A cool idea also, is hang an LCD behind the tank. Run loops of fish, old ship recovery and my favorite the Mermaids. Also virtual schooling will help them learn. J/K.
I think any marine grade wrap would work. A salt water tank could be an issue unless well sealed.