[Sapote]

250NM is the same as 25kg on 1 meter long bar.
How long is your breaker bar?
Example, if the bar is 0.5 meters, then a person of with a weight of x standing on the bar:

x = 250/(0.5 x 10) = 250/5 = 50kg or about 100 lbs.

 

[Sapote]

another question, TIS manual states to lightly coat the nut with oil, is it referring to coat the threads, the mating surface or both?

I believe the ans is both threads and mating surface.

So if you're 150 lbs, then don't eat anything for 2 weeks to get down to 100 lbs before working on the nut.

 

[Sapote]

0,25mm less. Thats a lot. The new bearing goes in easily. not acceptable. new one is on the way.

.25mm or ten thou, too much play for the inner race on the hub shaft. I think a seized bearing happened before and the spun inner race had damaged the hub (.25 under size).