I had a query the other day from a fellow Beaver Mill owner about the lubrication of the head.
He had found the drain plug and sight glass but couldn't see where to fill it.
The filler plug is inside the belt housing above the head, lubricant is Macoma75 oil. The picture shows the arrow pointing to the actual pulley, so it may be underneath or there may be a cut-out in the pulley for access. My own machine is still up at the farm pending stripping down to get it through the workshop door.
I'm posting this here as I can't find the original email and the info might be of use to others in the same situation.
Tony Griffiths' manual/handbook for the mill is well worth purchasing if you are going to be a long-term owner.....
The horizontal milling attachment that I bought a while back has been collected by Martin Perman, who is in Edinburgh this week, many thanks, Mate!
Peter