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Implement Alley Discussion Forum

NH315 Knotter problem

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Pig

09-14-2021 07:12:07




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Hello. NH 315 Baler - if it ain't broke, don't fix it!

Had a drive yoke failure, and thought it wise to rebuild the knotters. It was tying decently before, with little failures (maybe 1 failure out of 500), but the pinions and worm screw were badly worn; the roller was more square than round, and the fingers (or more precisely the finger holders) had pretty much disintegrated. I also replaced the bill hooks (mainly because of the bill hook tongues), and replaced a complete knotter frame, as I cracked it trying to get the bill hook pinion off.

When I came to bale hay, it missed knotting at a much higher rate than before. It now missed maybe 1 out of 40 bales.

I thought I checked and adjusted everything correctly: gap between knife arm and bill hook, disc timing, etc. The missed knots seem to be either right or left. Sometimes the knot hangs on the bill hook, sometimes the bill hook seems to be wrapped with twine (I use 9000 poly twine).

I am now wondering if the spring tension of the twine holder is excessive??? The twine seems to be jammed in the disc when I look at it right now (not sure that is typical though).
No hay to test any further...managed to get the hay in last night before it rained. I would have to use loose, dried hay.

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Pig

09-15-2021 14:51:49




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
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You know, I bet you are right!

Will take the time one day [soon] and sit down and go through it again, slowly, methodically, and step-by-step...

Cheers.



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MSS3020

09-15-2021 11:55:52




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
pig, I have a 273 new holland that hasnt missed in three years over..

THAT BEING SAID.. it was missing every 10th before I went through and using the manual went from start to finish IN ORDER and adjusted the knotters.. It took me three attempts to get it right.. even though I did it right..

You prob already know this but dont cheat.. the manuel specifies certain things in order of adjustment you do a, b, and c.. not b, a, and c.. good luck

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Pig

09-15-2021 04:01:35




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
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Thanks SHALER, yeah, I will try this with backing off the spring tension.

The really odd thing was that the right knotter had TWO springs installed!?!



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SHALER

09-14-2021 20:32:21




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
Pig, I hate to state the obvious but go ahead and back off the twine tension spring say a half turn and see what happens. I was just thru this with my NH baler. The right knotter was missing frequently, especialy when I would crank the baler chamber tension down. Turns out the twine holder tension spring was cracked. Was hard to tell by looking. Became evident once I loosened the spring all the way. I bought a new one for $13 and knotter runs like a champ.

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Pig

09-14-2021 11:45:32




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
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No, sorry, I meant I have the POLY TWINE version of the bill hooks installed. It's with POLY twine and POLY bill hook I am having this problem.



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Pig

09-14-2021 10:25:24




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
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Cheers.

Aye, With some difficulty I found the correct Bill Hooks for poly twine.



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farmallboy15

09-14-2021 11:39:06




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 10:25:24  
Might be a lot less painful to buy some sisal twine. I like sisal better anyways.



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Loosehandle

09-14-2021 12:41:28




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 Re: NH315 Knotter problem in reply to farmallboy15, 09-14-2021 11:39:06  
Me too



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farmallboy15

09-14-2021 09:08:40




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 Re: NH315 Knotter problem in reply to Pig, 09-14-2021 07:12:07  
Did you buy the correct bill hooks when you replaced them? New Holland has different billhooks and pinions for sisal vs plastic twine. Not sure what the differences are.



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