NH 660 Baler Won't Stop Tying

Anonymous-0 · Jul 28, 2008

I'm up to here with this ding-dang-darn baler.

It makes a bale just fine. Tight, even, pretty. It ties it perfectly, and then the fun begins. After the first tie, it restarts the tying process and keeps going until you dump the bale. You then cut the strings, close the gate, and get back to baling. It doesn't do this every bale, there's no rhyme or reason to it. Usually, it would over-tie just once and you could make a new bale, but sometimes it goes through the tie cycle 2 to 6 times until I fiddle with it. I've figured out what it's doing wrong on the tying engagement apparatus, but I don't know how to make it work right. The slide that disengages the tying driven pulley isn't sliding far enough forward to disengage the clutch on the pulley.

I could sure use some guidance. Thank you, folks.

R. John Johnson · Jul 29, 2008

I've had a similar problem with my 664. I assume this is a baler with AutoWrap. On the right hand side, under the shield (near the pulley that drives the AutoWrap gearbox), there is a plastic brush for a shield that covers a disk that rotates as the twine tie runs. You should be familiar with this area since there is a grease fitting in back there. This rotating disk has an off center stub shaft. A cast iron arm mounts on this stub shaft and is held in place with a flat washer and a cotter pin. The other end of the cast iron arm has a spring hooked to it. The arm has to be pulled back by the spring to stop the tie cycle. On my baler the shaft gets rusty and the arm seizes up. Spraying penetrating oil did not fix mine. I had to remove the arm and clean the shaft up with emery cloth.

I apologize if my descriptions are not very clear . If you can't get figure it out, post back and I will take some pics to make it clearer.

John

Tim Shaw · Jul 29, 2008

The pawl that is behind the big pulley also has to catch when the mechanism comes up when the wrapping cycle is complete. Take the belt off and run Auto-wrap through a cycle by hand a watch what is going on. The problem that John has described for you is more than likely the culprit but either one will cause the trouble that you are experiencing.

Anonymous-0 · Jul 29, 2008

Thank you Mr. Johnson, that is EXACTLY what I was looking for. That rotating piece you talk about is very stiff, and the spring doesn't pull it back all the way. I will pull it off and clean it up and grease it. Thank you VERY much!!

Formerly PaMike · Jul 29, 2008

Another problem with the autowrap that I had. Not your problem but I thought I would post so if you ever have a problem you know what it is. Mine would wrap but the arms would stall, then move, then stall. The clutch pawl inside the big V belt pulley got gummed up. Take it apart and clean it out and it works like new.

Anonymous-0 · Jul 29, 2008

Thanks, Mike, I'll keep that in mind.

ben brown · Jul 29, 2008

(quoted from post at 20:38:56 07/28/08) I'm up to
one thing you need to look at is the flat peice of metal that has a L bent at the end of it some time well get bent just a little and wont pull foward far enough for the clutch release to catch. take a cresent wrench and bend it just a bit then it well go far enough foward to catch the clutch release. the L well catch on the white plastic roller bringing it foward.

NH 660 Baler Won't Stop Tying

Anonymous-0

Well-known Member

R. John Johnson

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Tim Shaw

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Anonymous-0

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Formerly PaMike

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Anonymous-0

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ben brown

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