OT Question NH Baler
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=53565
Printed Date: 11 Sep 2025 at 4:42pm
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Topic: OT Question NH Baler
Posted By: NDCurt
Subject: OT Question NH Baler
Date Posted: 14 Jul 2012 at 10:42am
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Anyone have info on a 640 NH rd baler? Can you adjust the auto trip bale size on an auto wrap. I know you can "trip" it manually, but can you set it to auto trip at less than max size? Thanks
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Replies:
Posted By: bill2260
Date Posted: 14 Jul 2012 at 11:14am
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I have a 648 baler and you can adjust the auto tie. Look on the right side. There should be an adjustment about head high. You shorten or lengthen a rod. Can't remember wich way does what. Would help if you had a book. Bill
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Posted By: darrel in ND
Date Posted: 14 Jul 2012 at 12:50pm
I think that if it is the sme as my 660, you would look on the right side of the baler behind the shield, and about waist high or so right in the area of the twine drive mechanism. There you should find a pin, about an inch in diameter and about four inches long that runs horizontally, and will have several holes through it all in a line with a hair pin through one of these holes. Moving the hair pin to a hole closer to the front of the baler will make a smaller bale, and moving the hair pin to a hole towrds the back of the baler will make a bigger bale. I hope this helps, Darrel
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Posted By: NDCurt
Date Posted: 14 Jul 2012 at 1:10pm
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Thanks, looking to upgrade from the 846 chain type which is a smaller auto-wrap but no adjustment. I guess the one I saw must have been a good deal - sold before we could get them called.
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