Does low twine tension affect bale shape on small sq baler?

Tx Jim

Well-known Member
I'm discussing banana shaped sq bales on another forum and this statement was made.

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I think low twine tension doesn't affect bale shape but what say you? Does low twine tension affect bale shape on small sq baler?
Thanks,Jim
 
The ram sets the tension on the bale. How tight you wrap it determines whether or not it will stay that way or banana on you from my experience.

So tension is surely part of it as I have experienced.....JD 14 twine, Case IH 454 wire or thereabouts.
 
The baler is only going to use as much twine as is needed to go around the bale providing there is something to tension the twine, the two cranks (and possibly baffles)is what controls bale density, if you have a New Holland banana bales are not uncommon
 
I don't think low twine tension will affect bale shape, as mentioned below it is the pressuer put on hay by tension in chamber and other factors, how feed forks are adjusted, windrow size and the way hay is fed in. On some balers the twine tension does affect the knotter operation and low tension may keep bale from being tied at all.
 
I have found that to be a yes, no , and maybe thing. A lot depends on if both sides the twine is pulled and tied with both the same length. If one side is longer then yep bales will be banana's. If the twine is the same it maybe a bale that is loos but would be pretty much normal
 
The only twine tension is on the twine as it comes out of the twine box. Bale shape and density of bale can result in seemingly low
twine tension but that is a result of the shape and density, not the twine itself.
 
If the twine coming out of the twine box is not tight to spec and is just freely pulling out, IMHO there is potential for additional
twine length/slack to be added to the overall twine length that wraps the bale. This slack IMHO could allow one side of the bale
twine to be longer than the other and give some banana bale effect.

The thought is - as the bale jerks twine out of the twine box during bale formation - the plunger hits each flake home, perhaps
some slack can be jerked/pulled from the twine box. This slack could result in a longer twine on one side of the bale vs the
other and with it some banana shape. All of this assumes the knotter can receive the loose twine in the first place.

Just one humble haymaker's opinion.

YMMV.

Bill
 
Not gonna happen that way. Your scenario can create slack between the twine box and needle, but not between the needle and forming bale and knotter.
 
Thank you, clarifying my statement, the ram slamming against the friction of the hay in the chute (caused by the crank's induced pressure) determines the density of the bale.
-------------------
On another answer herein,I don't recall having hay feeding problem in a square baler....aka lopsided density leading to banana shape. The auger stuffs the chamber with more than enough to fill it and the ram delivers.
 
Low twine tension out of the box will cause problems with your knotters. I would look
inside the chamber at the hay resistors for issues on bale shape.
 
(quoted from post at 20:48:02 07/16/16) If the twine coming out of the twine box is not tight to spec and is just freely pulling out, IMHO there is potential for additional
twine length/slack to be added to the overall twine length that wraps the bale. This slack IMHO could allow one side of the bale
twine to be longer than the other and give some banana bale effect.


Just one humble haymaker's opinion.

YMMV.

Bill

Bill
I think the info in JD 348 OM about banana shaped bales where it states "see adjusting twine tension" is a misprint aka ERROR.
Jim
 
(quoted from post at 19:01:36 07/16/16) The only twine tension is on the twine as it comes out of the twine box. Bale shape and density of bale can result in seemingly low
twine tension but that is a result of the shape and density, not the twine itself.

Roger
What's your opinion on the statement shown under troubleshooting banana shaped about twine tension in JD 348 OM?

38107.jpg
 
When baling hay with my uncles well worn JD 336 we got banana bales no matter what using the JD 520 (his choice). When using the 2520 it
did better. Our 14 t we hardly ever had banana bales and if did it was because of light hay. That baler has less than 60,000 bales through it.
Now our Hesston 4550 inline baler you never have a banana bale due to the feeding system. I believe a banana bale comes from not
completely filling the chamber with hay and insufficient power.
 

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