Posted by Noah W on January 27, 2008 at 14:52:00 from (66.44.245.165):
In Reply to: JD 450c just stopped posted by hoonboy on January 27, 2008 at 11:56:59:
My 450c did the same thing 4-5 years ago. Didn't have the time to fix it being on the road 4-6 days a week. Hauled it to the JD heavy equipment shop. When they pulled everything off the top so they could get to the differential, they found the teeth ring had sheared off the bull gear. Seems as though Deere used a 2 piece bull gear with the teeth held on by rivets and this was a known problem with their design. Two ways to fix it. Either drop the tracks, pull the axles and differential, and re-rivet the teeth back in place. Or, use super high strength bolts to hold the teeth in place. This seems to be the preferred fix because the bolts hold just as well as the rivets, and there is a lot less labor( no pulling the axles) involved. If that is the case with yours, make sure you check the all the lines you can see for cracks and breaks, and get all of the pieces of the rivets out. They used a magnet to make sure they did. Been werking fine so far.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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