I just picked up a 400 myself. For all intents and purposes, it's a Super MTA with different sheetmetal. As stated below, torque amplifiers when properly adjusted and maintained have one h*lluva long service life even in tillage situations. Don't be afraid to pick up an owners manual to familiarize yourself with how and when to operate the T/A. The 400 is a pretty powerful tractor for it's size and still relatively simple to work on. Parts are readily available both OEM and aftermarket, so that simplifies the situation. You really need to ask yourself what you plan to do with the tractor as that will dictate weather or not you tear into the T/A or not.
Shoot me an email if you have any questions. I've got a fair amount of pictures of mine in different stages of tear down that might help out.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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