8N Rear hub lock nut wire

Dober_paw

Member
Location
MO
Following "Stop when it squeaks?" post of 5/23 - I pushed hub back on and the splines of the axle were darn close to flush w/ the hub, tightened to 450 ft-lbs then backed off to get lock-ring wire into keyseat. Mowed 30 minutes and found nut had loosened up - lock wire no longer engaged in keyseat. Is this normal?
Considered 2 piece locking nut to really hold it - but then decided to "do it right" - new hub on order - but - forewarned by tip 54/75 - I knew the brake drum screws that haven't seen the light of day for 30 years would be an issue for my limited expertise & toolset. Turns out they were less than finger tight!
Two questions for the forum -
am I right to tighten to 450 and then back off to align nut hole and keyseat? Seems obvious - but backing off just doesn't seem right. If I use the 2 piece lock nut, what is the little brass key that comes with it for? TIA Angus
 

back off to align nut hole

NO!!!! That's where you fudged up give it another shot...

I spec when I nail them down I am in the 600 feet lb range in other words 220lb doing a a little hop on a 3/4 ft bar...
 
I have a 40" bar that I attach to the socket that just fits the nut. My worry is to strip the threads. I did strip the threads a month or so ago when I saw oil leaking out the axle. I just replaced that axle and tightened it up with the thought, "Don't strip the threads!"
 
(quoted from post at 21:29:51 06/07/20)
back off to align nut hole

NO!!!! That's where you fudged up give it another shot...

Right.
In fact I leave the lock wire off for a bit. No matter how tight you make it, after some driving around they need re-tightening. Then again, then again. After they don't need anymore, then put the lock wire on.
 
Stripping the threads is a worry for me too - as the old nut didn't just slowly unscrew - it simply disappeared, a magic trick that left scars on 30 yr old axle threads.
Anyway - new hub on and 450 ftlbs happened to align nut w/ keyway - so clip is all the way in this time. Put dab of white paint on nut and on axle so that I can quickly see any rotational movement. Thought a couple of pictures might be interesting.
mvphoto57318.jpg


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