Power outage and raised the door by hand and wires came off track. Managed to get the door down and now trying to adjust the pulleys all the tension in the spring (I have a center one) is all let out. Can't lift the door and since the spring isn't preloaded the opener just stops.

Whats the trick here, how do I get the door open again?

When I get the door open should I re-attach and align the wires/pulleys when the door is all the way open right? Any tricks to make sure things are aligned?

Then it will preload the spring when it comes back down, right?