IH 430 baler trip rod slipping

My IH 430 all twine has started spitting out some very long bales from time to time. In thinner windrows it works great and bales are of appropriate length. In thicker rows, however, the bales get very long unless I reduce ground speed quite a bit. I tried fiddling with the bale length adjustment, but just end up with lots of short bales in thin rows and I still get long bales in thick rows.

It appears that the trip clutch (the friction ring that moves the trip rod) is losing its friction. In the thicker rows as the bale moves in big steps down the chamber due to lots of hay coming in, the trip clutch is turning quickly, but the rod isn't riding up on it as much as it should.

A search online didn't turn up a replacement trip clutch. Does anyone know where to get a replacement? Alternatively, does anyone else have an idea of how to fix the problem?
 
It could be the baler was getting too much hay in each stroke of the plunger while you were in the thick hay. 7 or 8 flakes per bale gives fairly constant length bales, more flakes is usually better for constant bale lengths. Some go as many as 11 or 12.

Another thought is to try belt dressing on the friction ring. But if it worked on the very short bales, it is likely working ok. If going over rough ground, it might not climb quite as well. Slower speed may have reduced your baler "bounce" or may have had it fed less hay in each stroke.

Best of luck
 
If it is like the setup on our 440 baler, the ring is some type of plastic/nylon and at least last year was still available from IH for a price. If it has gotten oil or grease on it, it won't grip right and all you can do is replace it. I decided to make my own out of steel with serrations on it like the old 47 baler had, seemed to work good. If you have a book for the baler it will tell you how to set the tension on the trip arm.
 
I had an old 47 baler that was doing that. I added a spring running to the end of the trip rod and tied it back at the knotter frame. Added just enough additional friction to make it work correctly. Ideally the solution is to replace the friction ring with a new one - finding a new one for a 440 baler may or may not be possible.
 

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