No torque setting required. Spin the wheel and tighten the nut fairly snug while the wheel spins, then back off the nut to finger tight and let the weight of a 12" adjustable wrench straight out at 3 o'clock be the amount of tightness.
In other words, very lightly snug. If the cotter doesn't line up, I'd rather be a hair loose than extra tight.
Tom just explained the procedure to you, do it that way and you will never go wrong, I guess I am a little different I would like my bearing a little to tight rather to loose, a loose bearing can let the rollers turn a little and run side ways in the race and ruin both bearing and race