Last season we had 6 shafts break on our head, (its a 12 row converted to 8 row) its running on a 9660 sts. This season about 5 mins into the start of the season we just had another one let go. Do you think we are running it too hard or is this a known issue?
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They are snapping at the pin holes so we have cut the rolls down the sides a little and are torquing the bolts up real tight, (will get grade 10 + bolts) to try and evenly distribute the clamping force accross the whole shaft length.
Not at all, looking at the snapped ones it kinda looks like its just shearing off. I also found that the bolts on the stalk rolls were tight but i could still slide the roll off the shaft. Which is why i am making the cuts in the rolls to allow the bolts to clamp down better.
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