New Holland 644 Auto Wrap timing issue

I have having troubles getting my 644 New Holland round baler to tie a bale. First problem was getting it to leave a long enough pigtail hanging out of the twine tubes. I discovered that this was happening because the twine tubes that are supposed to fold up and out of the way after wrapping a bale are not folding up all the way which causes it to not pull enough twine out to leave a long pigtail. I am getting out of the tractor to manually push the twine into the bale so that it will wrap. I have been fighting this a long time with very little noticable effect. I did adjust the arm that controls the twine tubes to maximum length, this helped a bit but not much.
Now the problem is even worse, the twine tubes don't even go up that far anymore, now they don't even go up far enough to even cut the twine. I find myself getting off of the tractor after tieing a bale to cut the twine. These twine arms need to go up at least another 6 inches or more than they are. It seems like a timing issue. The tieing indicator (that shows the process of tieing) on the front of the baler is off too. Its like a chain jumped a gear or something. Any ideas of things to look at? I'm about ready to take this into a dealer, but can't imagine what it would cost or how long it would take them to get to it. Any helpful advice or ideas would be appreciated. Thanks!

Trying to work off memory from our old 660, which had about the same tying mechanism. Make sure when you grab the arms after they are tripped that you can't push or pull them, hence they are not 'broken away.' There is a trip that will break the arms away both forward and backwards. If all is well there, have someone trip the lever while you watch the mechanism on the right side trip and return to the home position, maybe take a few times to recognize the problem. Also there is an alemite on the tube that knives are on {hard to get to.} There are lots of adjustments you can make and everything has to be just right. That's why we have gone to 100% net wrap. Nathan

See my answer to your problem up in TT on page 3, maybe 4 now. It's kinda long.....