Posted by used red MN on October 21, 2023 at 00:00:20 from (68.46.31.28):
In Reply to: Hesston 6400 posted by CORancher on October 20, 2023 at 21:01:39:
By your description I believe you are describing part 054841 in the attached diagram. Or hopefully it links correctly if not under Search by parts book type 6400 and then choose your machine, I am referring to section 42. The pulley is shown mounted with a common 1/2 inch bolt. Most half inch drive breaker bars that give you around 2 foot of leverage will twist off a 1/2 inch bolt easily. That would be the direction I would go. Although you description does not really apply to these, if you are talking about the actual eccentric drive for the sickle pulley 6181556 or eccentric 6236575 you should know that either will dismount off their tapers from the center shaft section. I believe that shielding will unbolt to allow better access to the sickle drive. We had Hesston 420s that used the same design of sickle driver.
Edit: To be clear I am suggesting assembling the nut on the bolt and tightening it to the point it twists off.
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