TC40D no forward/reverse or pto

[gould37]

I have a TC40D tractor that recently lost forward and reverse movement and the pto. I checked the fluid level and it seems to be ok. The bucket, steering and the 3pt hitch all seem to be working fine. Prior to this the tractor did not seem to have much power when running in foward or reverse up an incline or scrapping with the bucket. It also was lacking for power when pulling. Just would not go in either direction. Has anyone experieced this issue, or have any advice. All would be welcome. Also, is there a source for used service manuals for this machine at a reasonable price?? Thanks in advance.....

 

[jbrumberg]

gould37:

Welcome to the "Blue". It sounds like it is the seat safety cut-off switch. Jay

 

[jimmysisson]

I don't own a hydro but it sounds more like a plugged filter, if you lose all those hydraulic functions but the motor keeps running ok. How many hours, last serviced, do you know?
Jim

 

[jinman]

I think your problem sounds like the one DocHeb had on his machine after a few minutes of operation. The input shaft to the transmission is connected with a splined collar. His collar moved out of place, essentially removing the engine's input to the transmission. Your problem has got to be something similar. The PTO is a mechanical connection engaged with a clutch that uses the same hydraulic pressure that runs the 3PH and FEL. You can engage that clutch, but there is no mechanical input because the engine is not connected to the transmission. You can hope that your problem is the same as DocHeb's tractor, but it could be worse if the input to the transmission and charge pump are involved. That's where it gets expensive.

Since your PTO is not working in addition to the transmission, I'm afraid you will have to split the tractor to see what the issue is. I can only hope that it is the splined collar and you will be able to repair the tractor at the lowest possible cost.

I'm sure Chris (DocHeb) will see this post and add more info.

EDIT: Your HST transmission uses the same filter as the main hydraulic system that runs the FEL and 3PH. It has an HST filter that is in addition to the reservoir filter, but that would not stop the PTO from working. That's the clue that tells me this is a mechanical disconnect between the engine and transmission and not a fluid supply issue. If you want, you could remove the main hydraulic filter and look for metal shavings, but that would still not tell you anything that would keep you from having to split your tractor.

 

[gould37]

Thanks for all the input, please keep it coming. I think the last time the hydrolics were serviced was over the winter. We run a log splitter off the pto, so I would say maybe we have 30-40 hrs since last serviced. The hour meter is not working, but we do service the tractor a few times a year. JINMAN, any idea how big a job it is to split the tractor, or where I can get a service manual at a reasonable price. do you know of any good places for parts? I have had issues with the local blue dealer, not getting the right parts, no technical help, etc and I have two of these tractors that get used regularly. Always chasing parts it seems. I am located in the northeast. Thanks again for all your help and please keep all the great information coming in.

 

[gould37]

One more thing that might be important. This particular tractor has had issues going up inclines and pushing/pulling any weight since we had the motor rebuild. I hope this helps. The dealer that did the motor claims all was fine and they didn't cause this issue...

 

[jinman]

I have never split a tractor and I don't know the tricks or how hard a job it is. That's what I was hoping DocHeb would supply as well as maybe a NH tech who might see this post. I have a Repair Manual I bought when I first got my tractor and it was over $300. The best choice would be the CD that is a lot cheaper. If you want one or two illustrations, PM me and we can discuss that. As long as you don't expect me to scan a whole chapter out of the manual, I'll help you out. I wouldn't mind sending you a few pages, but if you have two of these tractors, you really need to invest in the CD. It will be money well spent.

If you want parts, I'd think about Messicks.com or Partspring.com, both of which are sponsors of this site and very responsive. I buy filters from Neil Messick online. They both have illustrated parts diagrams on their sites and that may be all you need to see where the problem probably is.

I truly wish I could advise you on splitting your tractor, but I will not guess and take a chance of telling you something wrong. It's very important to me that I know for sure what I tell you is correct and not just a best guess. I'm sure you can appreciate that.

 

[jinman]

One more thing that might be important. This particular tractor has had issues going up inclines and pushing/pulling any weight since we had the motor rebuild. I hope this helps. The dealer that did the motor claims all was fine and they didn't cause this issue...

Motor rebuild? Did they split the tractor? This is sounding like the splined collar may have not been re-installed correctly or is cracked and slipping. When the tractor would not go up an incline, was it in low range? I'm beginning to get an idea of what you may find when you split your tractor. Of course, I don't know for sure, but this is sounding like maybe a rollpin was left out of the splined collar and it moved and cracked, leading to total failure. Now, this is just a fairy tale based on my imagination. It is plausible, but you won't know the facts until you look at it with your own eyes.

Here is an illustration of the front transmission housing and the engine interface. Item #19 is the damper on the engine that replaces the clutch. Item #8 is the engine/transmission interface shaft that has to be in place since there is no clutch on this model. Item #6 is the splined shaft that connects the interface shaft to the transmission input shaft. I was wrong that it has a rollpin. It has a lockring instead, item #7. This is where I think you will find your problem.

Here is the illustration of the transmission. The input gear shown on the left would mesh with the splined collar on the front transmission diagram.

 

[gould37]

Jinman, thanks for the great advise so far. I am trying to gather as much info as possible before diving into this task. You are right about the tech manuals, the only issue is the one tractor is a tc40d and one is a tc40da. NH list two different books, the one being aroung $300 and the other over $400. So you see why I am a little hesitant. Those images you included were fantastic. I will keep you posted on what I find and thanks for all your honesty.

 

[dqdave1]

I would think one cd would be sufficent for the 2 tractors.