TN75S With loader problem

[ThePunisher]

Hi everybody - new to the board, so bear with me for my first few posts

My father and I have a smaller beef farm (about 100 cultivated acres), and have recently bought a used loader tractor...a TN75S. The tractor has about 2200 hours on it and runs very well (I wanted a Deere, but we ended up with the New Holland due to a very favorable trade in allowance on our old tractor). Actually, I am quite impressed with the tractor, but the loader is what is giving us the problem. It is a New Holland 33LA loader, and it is plumbed into the rear oil outlets and controlled by a 4 way joystick (New Holland OEM parts). When we first got the tractor, the loader would go down about 1 foot a minute, even with the tractor running (the bucket would not move except for the self levelling function). Dad figured the packing in the cylinders was no good, but we thought we would reverse the hydraulic lines in back, and when we did that, the loader still dropped (but not as fast) and the bucket then started to dump by itself at a gradual pace. The dealer took the tractor back and replaced the backing and said there was nothing wrong with the valves. Used it the other day to clean the barn yard and feed round bales, and the loader still drops (although now only about an inch a minute). What do you guys think? (long winded, aren't I?)

 

[IH3444]

I think you bought a tractor with 2200 hours on it, and are expecting new tractor performance. An inch a minute is not bad for bleed down. My old hoe is the same way, even though it has a lot more time on it. My brand new TC48 with 150 hours on it has no bleed down what so ever, even with a load in the bucket. Hope you did get a great bargain on it, because you may have to live with it, or do an extensive trouble shooting session, and replace anything you feel is suspect. The TN75S is a heck of a machine, but 2200 hours is approaching 1/4 of it's life, and who knows how well it was maintained, or how hard it was rode. How's that for punishment?

 

[Robert_in_NY]

Mine does this also, not as severe as your 1" per minute but it will creep down maybe an inch in 10-15 minutes. I asked around and the common thought is the cylinders. It is not something that is a major problem so I just live with it and don't worry as it doesn't affect the tractor when I am using it.

Did you try repacking the cylinders?

 

[ThePunisher]

Yes, the cylinders have been repacked - and that did help. Just found it odd as our two previous loader tractors did not go down when the tractor was running. And yes, I know it is used, but it is much newer than the 1978 we traded for it
If we have to live with it - that's cool. Thanks for the help.

 

[Robert_in_NY]

Is there air getting into the lines somewhere? The TN's are only 7-8 years old so you really shouldn't be having any major issues with them yet.

 

[rback33]

What you are seeing is normal and now well with in spec I am guessing. You cannot easily compare today's loader with 30 y/o ones because the design geometry is COMPLETELY different. I would guess your old loaders' lift cylinders are twice as long as you new loaders' lift cylinders. An inch of cylinder drop (where is should be measured) is much more noticeable on your new loader than your old one. It's also something you will have to deal with on a 2200 hr unit. Longevity on those things all comes down to maintenance and keeping contamination out.

 

[ThePunisher]

I think you bought a tractor with 2200 hours on it, and are expecting new tractor performance. An inch a minute is not bad for bleed down. My old hoe is the same way, even though it has a lot more time on it. My brand new TC48 with 150 hours on it has no bleed down what so ever, even with a load in the bucket. Hope you did get a great bargain on it, because you may have to live with it, or do an extensive trouble shooting session, and replace anything you feel is suspect. The TN75S is a heck of a machine, but 2200 hours is approaching 1/4 of it's life, and who knows how well it was maintained, or how hard it was rode. How's that for punishment?

Update - dealer is taking it back and going to fix the problem. He sold it as a fully reconditioned tractor. It was not a great bargain - only the trade in allowance on our old girl was better than what deere offered. In my heart, I know we should have went with the Deere - Deere has a better machine from what I have seen and have owned. As far as the tractor being at a quarter of it's life and therefore we should "expect" things to go wrong, thats a load of bull. The dealer sold it as reconditioned - and it is only 4 years old. The salesman was the first owner and he leased it for 3 years - saw all the maintenance records. And, anyone who compares todays technology with 30 year old hydraulic technology and says the new stuff can't be expected to be as good - your dealer has done a good job convincing you to accept an inferior product.

 

[IH3444]

Leased tractor? thanks, that explains alot, as well as the machine spending more time in the cold with cold oil in the hydraulics at start up......hopefully they will find the problem with you 4 year old machine........good luck with your dealer, and his ability to troubleshoot the problem.

 

[Soundguy]

To be fair..i think you are making a few asumptions.. and taking a few comments out of context.

1, I believe all the big 3 units are pretty much equal in build quality. That is.. I expect a green one, blue one, red one, and orange one all to be top notch in engineering quality.

2, The hours issue / i/4 life / bull. i think you are still expecting too much. that is.. you have a machine with 2200 hours, and you -don't- think it should have any wear in those hours? That's asking alot... 4ys and 2200 hrs. that was a 'daily driver' machine. Common to see deisels run 8000 - 10000 hours or more before being ready for a rebuild. I think the 1/4 life comment was at least, close to the mark.

3, leased / rental unit = Drive it like you don't own it. On 2 otherwise equal machines.. i'd much prefer to own a '1 owner' unit than a leased unit. Leased units see all ranges of user use and abuse, and all levels of user experience.

I didn't see anywhere that the previous poster said the old loader technology was better.. he said the geometry was different and may have had longer cyls. You are misquoting him a bit.

Now.. you bought a used tractor. it still sounds like a decent unit to me.. just has a few bumps and bruises. Sounds like the dealer is trying to make it right by working on it 2x times now.

Recon does not mean 'perfect'. If ya wanted a perfect one.. ya shoulda bought new.

Soundguy

Update - dealer is taking it back and going to fix the problem. He sold it as a fully reconditioned tractor. It was not a great bargain - only the trade in allowance on our old girl was better than what deere offered. In my heart, I know we should have went with the Deere - Deere has a better machine from what I have seen and have owned. As far as the tractor being at a quarter of it's life and therefore we should "expect" things to go wrong, thats a load of bull. The dealer sold it as reconditioned - and it is only 4 years old. The salesman was the first owner and he leased it for 3 years - saw all the maintenance records. And, anyone who compares todays technology with 30 year old hydraulic technology and says the new stuff can't be expected to be as good - your dealer has done a good job convincing you to accept an inferior product.

 

[rback33]

I didn't see anywhere that the previous poster said the old loader technology was better.. he said the geometry was different and may have had longer cyls. You are misquoting him a bit.


Soundguy

Thank you. You hit that nail on the head. It's not like I am part of the management team of an international loader manufacturer. I mean, what do I know?

As to the original complaint... if bought as a reconditioned unit then he may have cause to complain, but I don't know. It's between him and the dealer to work things out.