NH 273 Twine Finger adjustment

k350024v · Mar 23, 2023

I recently bought a 273 hayliner from a guy who said it had problems with the knots not coming off the billhooks. I installed new twine arm cam followers and adjusted to the bill hook per the knotter service manual (the side having the issue was way out, probably most of the problem). I also replaced the twine finger mounting plate on the side having the issues as it was pretty warped and beat up. I cant find a spec or anything on setting these up, I heard that they dont have to be precise (the linkage and everything on mine are pretty sloppy) Anyone have some insight on this? Thanks in advance

DeltaRed · Mar 23, 2023

Those fingers are loose and sloppy. IIRC,the book says 1/32 inch clearance. However,I set em as close as they can go before they hit the needle. However,check billhook tension as too tight can also keep
knots from releaseing. Also check billhook for grooveing,as a groove can cause knot hangup as well.Any single thing,or a combination of many....

Mike(NEOhio) · Mar 23, 2023

Mine did that last summer. It made a good knot but the twine ripped off with the next two or three strokes leaving the knot on the bill. I
backed off the adjusting nut for the bill spring. I think the book says leave two or three threads exposed. Start at two and if the knot does
not pull tight increase by one or two flats at a time.

k350024v · Mar 24, 2023

I bought new billhook springs but decided not to put them in the old springs didnt look too bad and its kind of vague on setting spring tension according to the manual. for HD knotters it says to compress the spring to like 11/16 which is kind of hard to measure since the spring sits in a counter bore. Guess I'll find out.

k350024v · Mar 24, 2023

I had the billhooks out when i replaced the cam followers on the wiper arm, they looked in decent shape. I'm thinking the wiper arm to billhook clearance was the issue

jaoneill · Mar 26, 2023

(quoted from post at 06:44:24 03/24/23) I had the billhooks out when i replaced the cam followers on the wiper arm, they looked in decent shape. I'm thinking the wiper arm to billhook clearance was the issue

I would say that you are correct in that assumption. Bend the arm to where it will barely scrape the billhook then back away a few thousandths.

NH 273 Twine Finger adjustment

k350024v

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DeltaRed

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Mike(NEOhio)

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k350024v

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k350024v

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jaoneill

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