TC45D HST

[dynasim]

Y'all

I have recently purchased a NH TC45D SS 17LA, originally thought to be a 2002, but it turns out was made in 2000. I paid 16,500 and it has 1200 hrs.

I have learned much from this forum, and hope to contribute in the future, but I am still learning.

I will be using it to load, unload, and move industrial equipment, help in light construction activities, as well as doing on-call mowing and snow removal.

I purchased this specific model to maximize the fel and tph capacity while fitting on a 1/2 ton pickup capable trailer.

An issue that I haven't seen addressed that I need to fix(I was aware of it before I purchased) is that it creeps forward when I let off the forward hst(or the reverse hst) pedal. This is not a spring problem, but a centering problem as it creeps when I let off reverse. Can someone give me guidance as to where to look. Can I just recenter the cam? by loosening and turning a shaft in a block?

This is not critical for lifting items, but is dangerous when working in tight spaces.

Second, will the HST sustain a high load(30+ hp) for a significant period of time, and does a high sustained PTO or drawbar load significantly wear the internal parts(the swash plates)?

Third, is the PTO speed significantly effected by load, independent of engine speed? In other words, does the engine rpm give a good indication of PTO rpm?

Finally, does anyone have the power/torque/efficiency curves for this tractor or does anyone know where I could find them?

I will ask these in for separate posts to keep the topics clear.

Best Regards
Chris

 

[RickB]

If it creeps both in forward AND reverse, it is in fact a return spring problem. Very common for a tractor of that vintage. Tighten the J-bolt on the return spring until the problem disappears. You may well be nearly out of threads.

 

[dynasim]

It only creeps forward(very slowly), even after letting up on the reverse.

Thanks
Chris

 

[RickB]

Oops. Can't help you with centering off the top of my head. Sorry.

 

[Fredex]

I don't think the pto is powered by the HST. If it were, the pto speed would vary and reverse with the GO pedal. I'm not familiar with your tractor, but even if the pto shaft is physically in the same case as the HST I would bet it is hard-geared to the HST input shaft.

 

[dynasim]

You are right. In retrospect it was a silly thing to think.

Thanks
Chris