New Holland TS115A Transmission Problems

We have a 2006 TS115A 3400 hrs with the 16X16 Auto shift transmission, I just noticed that when driving and shifting from low range to high range It will grind a little even with the clutch pressed in. Wondering if the clutches need calibrating, or does this sound like syncros? It shifts through all of the gears nice and smooth, it only grinds when going from low range to high while moving. The shuttle lever when put in reverse will pop back to neutral at first, if I hold it in it will stay makes no abnormal noises. Does this no matter the gear only in reverse. It has the power shuttle on the left side of steering wheel. it also has began to do this when I am in high range for about 30 minutes and I stop it will kick me out of high range and when I need to move again it will say I am in neutral even though the gear shifter is in the high side. If I shift it to low it will move and everything works fine. The only way I can get it to go into high range is if I put it in high with the key off and then turn the key on and it will show I am in high . If I turn the key on while it is in low range and then shift into high it wont read that I am in high range. If I let the tractor sit over night it will go into high like normal but once if runs for about 30 minutes in high it kicks me out. the high range not registering and the shuttle lever not staying in revers began at the same time. I am thinking that the grinding problem may be a bad shift cable or shift rail sensor and the shuttle problem might me a electronic issue or a bad solenoid. Any in put would be greatly appreciated.

I don't recall shifting ranges on any tractor while moving, and as I recall owner's manuals cautioning against it, on red and green, nor on blue. If
you are in a range you can up shift easily while moving, but not necessarily down shift as smoothly, especially if you have the PTO engaged.
Personally, I wouldn't do it.......maybe it's trying to tell you that. Grin

REMNDS ME of my MF-240-S, which I can shift the tractor into forward or reverse, however the owner's manual says to not do it into reverse if the PTO is in ground-speed, it'll eat the gearing or some such. It can be done, just don't do it. {Clever British design...} Anyway, unless I'd paid attention to some details back in the owner's manual, I wouldn't know the danger. .

I would start with a recal on the trany. On my ts100 it helped for a little while but ended up putting in the sycro in it. Not a bad job
mine was the forward reverse sycro. Split behind engine lots and lots of small parts, the shop manual from NH is very poorly writen.

Thanks for the input guys. Do you know if NH will stand behind the recall even though it has 3400 hrs? Does your ts100 have the same tranny as this even though there is no A in your model number?

If it's a recall it should be forever,a service bulletin you have to ask about and may be limited. That was my take on it with a Chevy truck.

I think he was talking about a recalibration not a recall.

I know very little about the NH tractors of today, other than the TS series has had transmission electronic issues. I know of several that have had shifting and electrical issues.

Mine is the 16x16. it is not a recall I meant to recalibrate the transmission.