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Discussion Forum
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H upper bolster pivot shaft

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Mike ISW

06-24-2003 18:25:36




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I just recieved a aftermarket upper bolster pivot shaft. I installed everything as removed but as I tighten sector gear castle nut the gear draws up tight to casting under the gear. disassembled and reinstalled old shaft and as I tighten gear it still has a few thousands clearance from casting. I then got both shafts on the bench and measured and they appear identical. Got me stumped! Has anyone used one of these aftermarket shafts? Or any suggestions?

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Aces

06-24-2003 18:57:48




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 Re: H upper bolster pivot shaft in reply to Mike ISW, 06-24-2003 18:25:36  
If the tappered spline is not right that sure could be the problem. I have ground some off the bottom of the gear on shafts that were warn because of the gear being loose. Just a thought.



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john

06-24-2003 18:48:10




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 Re: H upper bolster pivot shaft in reply to Mike ISW, 06-24-2003 18:25:36  
I have. I got one maybe 20 years ago but my tractor has been in storage ever since. I went through my front end a little while ago. I noticed on mine I had to put a washer between the sector gear and castle nut to get the cotter pin to get a piece of the castle nut. I would take them off. Put them side by side on a good very even surface. Put the sector on each with the castle nut as tight as when you install it in the tractor. Measure up from the surface to the bottom of the sector and measure down from the top of the bolster shaft to the top of the sector. Do for each shaft. If you get different measurements from shaft to shaft of the respective distances, that is your problem (the taper part). Also make sure that where the thrust bearing goes it is the same on both shafts. Just what I would try.

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