Re: Farmall Super C rear axle replacement - Help needed

Posted by Ed342 on June 29, 2007 at 22:12:35 from (216.234.125.215):

In Reply to: Re: Farmall Super C rear axle replacement - Help needed posted by Harold Hubbard on June 29, 2007 at 20:12:48:

Harold - Thanks very much for your info. I got the tubes out and was then able to remove the large gear on the broken axle (is this gear the 'bull gear'?). It had sheared practically flush with the outer side of the gear spline. The broken end came out of the gear easily. Then I saw that some 3/8 of the spline on the break side of the gear was also broken. That still leaves a lot of the spline to slide the new axle shaft in but I'm thinking the torques that sheared the shaft probably extend to weakened metal further into the gear splines and a repeat of this process might be just waiting to happen if I reuse this gear. I'm going to pick up a different gear, used and no guarantee but no signs of damage and not from a damaged shaft. The gear splines on the broken shaft are heavily torgued out of shape for about 3/8". I'm curious about why this shaft broke and wondering about the condition of my other axle shaft. I've been using this Super C for five years for quite a bit of snow pulling with a rear mounted blade and even more heavy brush hogging with a pull behind 5 ft. JD brush hog. I don't know the previous use of this tractor but in thinking it over I almost always use the right (damaged) brake. Could that be a significant factor in this axle breaking? There have also been a few times (mostly when pulling snow) when after breaking the gear box in 1st or 2nd would lock up (to the point of stalling out the engine)and I would have to shift into 3rd or 4th briefly to get her going again - then she would be fine. Something similar also happened one time in reverse when I was bringing her down from a trailer although that time she seemed to lock up on the left wheel when I applied the brakes. Possibly I locked the pedals together that time and I think I chalked that up to the brake facing material at the time - but perhaps it had something to do with this axle just giving an indication it was getting ready to fail. Do you have any thoughts on that?
I have been advised that I can safely, even preferrably, use a high-torque silicone gasket compound for all the gaskets I will need to reassemble everything I've disassembled here. Since the oil pressures and temperatures are practically non existant back here I'm comfortable with using the silicone in place of gaskets for most of this but I'm a bit concerned about using silicone in mounting the axle shaft housing and possibly the pto unit. The field torques and vibrations on these two units are going to be appreciable. Especially on the axle housing. Do you know if there is a given torque range on the housing bolts? Otherwise I was going to cut new gaskets from cork. Do you have a recommendation on these gasket approaches? Thanks again. Your comments are very helpful and appreciated.

Replies:

• Re: Farmall Super C rear axle replacement - Help needed Harold Hubbard 05:38:32 06/30/07 (0)

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