You need to sit down with the BAL manual and absorb what they say first. Then after that, find a step stool and IB in hand visually understand the cable layout. Adjust the cables according to what is in the manual. When you feel that you are at the right point, wander outside and give those cables a tug - they may be 'right on' or you may need to give them a tweak. That manual is a decent general guide and not cast in stone. You will need a 3/8" and a 7/16" wrench - Home Depot have a gear wrench design for a couple bucks or so each that work well. Oh and that cable adjustment - if you run out of threads on the individual cables, you will need to loosen them way out and move a chain link or two on its sprocket. The first one will take at least an hour, any others, much less time since you will then be a trained 'expert'