DocHeb said:
I don't know how old your TC45D is. There were PTO Brake problems for tractor serial numbers after G524944 to approximately G604974, recall campaign 000250 from New Holland. This was covered in the thread:
New Holland Safety Recall. Read the post from techinNY near the end of the thread.
Chris, you did a great job of digging up that old thread. Even if h10doc's tractor is not one of those serial numbers, I'd bet he has an identical problem. To better show the issue, I copied part diagram from NH's website and am attaching it here with a description of the parts below.
In the diagram, part no. 11 is the PTO brake plate. It is what the recall was about and replacement does not require splitting the tractor since the plate is just bolted in place with two bolts. Notice at the top of the diagram, there are two additional part 11s that show different configurations of that same part.
Now, look at part number 20. That's the PTO clutch/brake pack fully assembled as it goes onto the PTO shaft. Notice the ear that sticks up. When the PTO is disengaged, that ear rotates around until it finds the slot in the brake stop plate no. 11. When it's in the slot, the brake slows and stops PTO operation within a few seconds. If part number 20 is defective, the tractor will have to be split to replace the part(s).
This is what the recall was all about and also the problem I think h10doc is having with his tractor.
h10doc: The maintenance manual tells a lot about disassembly of this part, but I think DocHeb can verify that it does not give you a lot of detail about how all the parts work. It does a great job of describing the clutch and the hydraulic flow, but very little about brake operation. In this regard, the manual is very lacking.
With all this info, h10doc should be fully supplied with all the info he needs to talk to his dealer. Hopefully, the dealer's service manager will be familiar with the recall campaign and be able fix his PTO brake without additional cost to him.