Emco unimate 3 power feed drive belt

[Harglo]

My lathe came without the O ring that drives the power feed worm shaft. There is a similar grove in the spindle but the worm drive shaft is way out of alignment the head stock spindle. Any body have one of these lathes that could post a photo as to what the set up is for the drive belt for the power feed? The parts blow up shows that it has a twist in the O ring belt.
Harvey