I have a late series 348 and have problems with it missing knots. it seems to be the timing of the twine disc or something related. The twine (using plastic) occasionally goes over the billhook roller. The Manual says twine disc timing or needles. i think it could also be the tucker fingers, as there's a bit of play in that mechanism but I've seen it missing the twine. But the main thing is the twine disc timing in that the twine doesn't seem to fit into the notch of the disc perfectly after it's been running several bales. Is anyone familiar with the tricks and tips for these knotters (all are the same for this series). I'm wondering if the needles position are critical. i've got new needles but it's hard to get them both to touch the edge of the slot with nice equal pressure. Any help with general tips and ideas on how to get these working consistently would be great.
By the way, the parts, tucker fingers, billhook, wiper, blade all seem to be in very good condition. I replaced one of the billhooks when I bought the baler. And this problem has been a problem since I've owned it (1year) so unfortunately I don't have a good working situation to work off of.