Andrew Chua Posted May 28, 2009 Share Posted May 28, 2009 I've swapped the LT230 1.410 gears for 1.222 last april. by september it started whining. As I got the kit from Ashcroft, I decided to email them. they are the best, super helpful. The kit is pretty good, but I can't say for what happened during the install at my local garage. I vaguely remembered something about a pre-load in the overhaul manual. What does that mean? How do I check it? (yes, i'll have to drop the 50kg box again and tat's going to cost me about 200pounds) Should it be a case of the preload was not right during the install or could the old bearings be the problem. I didn't change the bearing when the box was dropped. What do I need to take note of when I next when I overhaul the box (soon)? Quote Link to comment Share on other sites More sharing options...
Les Henson Posted May 28, 2009 Share Posted May 28, 2009 The rearmost bearing is the most likely one to fail, the next one in is adjustable. This can be done without removing the box. I think you can replace all the output bearings with the box in place, but I've never tried it. Les. Quote Link to comment Share on other sites More sharing options...
Andrew Chua Posted May 28, 2009 Author Share Posted May 28, 2009 if not it's time to spend the money (again) and drop the box. should have done it the first time round. but i'm still puzzled abt what the preload stuff is all about. Quote Link to comment Share on other sites More sharing options...
reb78 Posted May 28, 2009 Share Posted May 28, 2009 if not it's time to spend the money (again) and drop the box. should have done it the first time round.but i'm still puzzled abt what the preload stuff is all about. I'm not sure on the answer, but i did come across an overhaul manual some time ago which i have a copy of on PDF. I can;t remember the link, but can email you a copy if you PM me your email address. Quote Link to comment Share on other sites More sharing options...
western Posted May 28, 2009 Share Posted May 28, 2009 the pre-load sets the bearings endfloat/running clearances Quote Link to comment Share on other sites More sharing options...
Andrew Chua Posted May 30, 2009 Author Share Posted May 30, 2009 the pre-load sets the bearings endfloat/running clearances wow, that certaintly sounds alien to me. ok, looking at the manual now, I don't seem to see how it work. Can you enlighten me on how the pre-load will set the running clearances? Thanks!! Quote Link to comment Share on other sites More sharing options...
western Posted May 30, 2009 Share Posted May 30, 2009 if you tighten up to much the preload becomes excessive & locks the bearing up. similar effect can be done when adjust wheel bearings, to much & they either run hot or lock up. Quote Link to comment Share on other sites More sharing options...
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