Billhook tongue tension

Luke9

Member
Trying to set up my new-used square baler for the first time. The gap under the billhook tongue is big enough that the tooth bottoms out before ever touching the twine. How much force should it take to draw the twine ends through when the tongue is clamped?

It was loose with poly, and I tried some 7200 sisal also. Still feels like it doesn't resist pulling through at all. The billhooks don't appear to be excessively worn, but its possible. I've read suggestions on filing the tooth, but not sure how far to go.

As it is currently, cranking down on the billhook tension spring won't do anything since the tooth is bottomed out.
 
What brand of machine are you working on?
JD has multi-twine billhooks that has a groove in the billhook for the tongue to sit in. It is for plastic twine but
will also work for sisal.
 
Its a Hesston 4500, and the manual says the billhooks are suitable for poly or sisal, with a different tension listed for each. That value is just in turns of the nut to compress the spring.

The final tension is supposed to set based on actual performance, of course. I've got the knotter on the bench right now, and didn't want to reinstall if I had to change billhooks or modify them. Pretty limited testing before I removed the knotter, and it didn't work well, but I've fixed quite a few other obvious issues also.
 

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