One of the manuals floating around (not sure if it's this one) is missing some of the section on the e-hubs. If it is missing from the manual I posted, then go to this post and down load the missing section: 7x Series w/Electric Hub Owners - Have you rebuilt your knuckles? Sorry, I don't have time right now to check the manual above.
Good luck. Just be careful with your e-hubs. Make sure you use some electrical slip ring grease on the brushes in the e-hubs.