Thanks dseymo1, I hadn't realised they had bought out B&H either.
John, yes I got the User guide but hadn't seen the Service Manual link.
Very useful doc in case something goes wrong.
Eiki are built much simpler than the earlier B&H models, which I know my way round pretty well. B&H have a nylon worm gear located in the middle of the guts of the machine, which my friend who was area repair engineer for B&H in the past says takes him at least 3 hours to replace (all day for a beginner!) as you virtually have to strip down the whole mechanism to get to it.
If you ever see a second hand one for sale always check the knob at the back of the machine (which turns the main spindle and worm gear) if it feels clunky or tight walk away quickly.
Mike.