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Discussion Starter · #1 ·
Went to the feild this morning to start,walked around my 9770 while fueling and there we were two more broken friggin studs,this is now becoming a bi weekly occurrence,almost had my fill of this friggin thing!! Is there any aftermarket studs that may be a bit stronger?
 

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Ooohhh Deere
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CAT bolts can be very strong but I doubt you will find better than 10.9 JD bolts. Machines with duals should always turn wide if possible. Take every 3rd or 5th swath. Reduces the torque load on the studs when turning sharp back beside the last pass.
 

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your operator may be turning corners too fast or hopper extentions are a factor to the issue, had the same thing happen on a 9230 we had, only one of the two till we figured out the operator was stressing it.
 

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I had a few again this year on my 9760 with duals. The last time we had broken studs was a year with sprayer ruts too, seems the rut on the headland may be causing too much jolting, especially in the turn
 

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Its physics pure and simple. The outer wheel is trying to turn faster than the inner one during a turn, however they are bolted together and thus fight each other. The tighter and faster the turn, the higher the forces will be and the more likely you'll be to break bolts. I've seen them on all colors, if they've got duals it'll happen to some extent. We police this very aggressively as we take our 9870 on 40% slopes. We turn slow, wide, and just plain carefully.
 
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