there is plenty of info and discussion of flat leather drive belts for older machinery - but very little on the care/feeding of the synthetic flat drive belts used on newer machines.
I've been trying to keep the traverse belt on my Abene mill from jumping off at the slightest provocvation - it's a flat GATES belt that is inside the body of the machine - to get to it, I have to remove the cover over the relays and then loosen and swing the relay board aside and reach into the bowels of the mill and put the belt back on - so it's a pain in the neck - not at all like just putting the belt back on an old time lathe.
I've tried tightening it - I can't make it any tighter - the motor mounts to the opposite side of the mill and is held in place with four bolts through slots in the motor base (vertical) - there is nothing to pry on, and anyway the belt seems pretty tight.
I did finally decide that oil on the belt might not be a good thing, so I sprayed brake cleaner onto the belt and the pullies - that seemed to help quite a bit - but I doubt that it's a permanent solution.
so today's discussion topic (this can't be the only device with this kind of belt) - is - care/treatment/tensioning/ etc of these synthetic flat belts -
Oh, yes, I do have the manual, and it's in several languages but it says nothing about the belt other than providing a part number.