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Minneapolis Moline Tractors Discussion Forum
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How to set bearing load on differential of RTS.

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Doug

02-24-2004 09:06:39




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I am working on my RTS brakes, and have the rear axels all apart. I need to know how to set the load on the differential bearings, after I have replaced the axel seals. I removed a couple shims on the gear side, and it still turns well, and tighter to the gear, but how do I know if the other side is too loose, or too tight? As long as it still turns freely is it good enough, or can it still turn and be TOO tight? The differential is too heavy to get in there easily and see if it has any slop. With one, two, or three shims in the left side it still turns, and I can't notice much slop at all. So how do you know if you have it right?

Thanks for any suggestions..

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Jim Parisot

02-24-2004 18:53:00




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 Re: How to set bearing load on differential of RTS in reply to Doug, 02-24-2004 09:06:39  
Doug,

My short answer is to put the shims back in and forget about it, but at least you are thinking in the right direction and want to get everything right while you are at it. My long answer starts the same, put the shims back in. Take a couple pry bars, and it is easier to do with a friend, and pry back and forth on the differencial and see if you have any end play, making sure that a little rotational movement in the differential isn't confused with end play. As far as I know end play should be zero, just like on your axle bearings. You may want to check backlash between the ring and pinion, the correct amount is stamped on the outside diameter of the ring gear and should read something like BL 008 or 006 BL. Just for the heck of it I measured the backlash of a tractor I have had apart but still don't have the transmission cover on and a parts tractor and they both measured .012. I'm not going to sweat it, they should both be .008 and that .004 isn't going to make any difference in a tractor that will never be worked again. If I had it to do over again, and one of the shims was .002 I'd probably move it from the left side to the right. Remember, you have to move the shim(s) from one side to another to maintain your 0 endplay of your differential. Hope this makes sense and helps.

Jim

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