NH TD5.95 drifts to the right - worse when faster

   / NH TD5.95 drifts to the right - worse when faster #1  

GerMarsh

New member
Joined
Mar 22, 2025
Messages
15
Location
West Wales
Tractor
NH T5.95
Hello again more experienced agri people! We have had the 2016 TD5.95 about a year now and I rarely use it on the road. However, when I first bought it I had to fetch a trailer from a neigbbouring farm (only about a mile away) and we (my long suffering wife was in the "instructor's seat"!) nearly ended up in a ditch as I temporarily lost steering.

After a discussion with the supplier, he suggested I check the hydraulic oil level which was indeed at the minimum. I told him that the machine was supposed to be serviced. He reckoned that the oil was not rechecked after putting the front-end loader on it!

I still think it may have a problem though as it tends to drift to the right when travelling along a track or road. Even I soon sussed out that the system is purely hydraulic as there is no mechanical link from the steering wheel to the front wheels. There is no evidence of any oil leak anywhere on the tractor - which I thought unusual! Oh, and the faster I go, the more I have to compensate by constantly turning the steering wheel to the left.

As ever, any help would be gratefully received.

Finally, a warning to other newbies out there to be very careful with your implement! The tractor has been brilliant at our small type of farming and I was actually looking forward to tedding hay a couple of months ago. The contractor had a massive Massey with triple mower and could only just get it through the gateway as the entrance was 90 degree turn from another gate to the road. He suggested I remove some fence as the rake and baler could not get in there. As the fence already had a joint in it, I did so and "secured" the two parts on the outside of the field. Except one half was not that secure and I did not notice that the fence had jumped back into the field. Result: lots of banging noises, snapped fence and post and knackered tedder. Photo attached! (I was shaking like a leaf but no real harm done to the tractor.)
 

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   / NH TD5.95 drifts to the right - worse when faster #2  
Excessive toe in or out can affect the steering, the other would be bad seals in the steering cylinder, or the orbital motor is bad and leaking by..
 
   / NH TD5.95 drifts to the right - worse when faster #3  
Put your money on the steering cylinder piston seal. Orbitrol type steering valves do have problems on occasion but not usually like that.
 
   / NH TD5.95 drifts to the right - worse when faster
  • Thread Starter
#4  
Thank you very much for the responses. I shall clean the areas and check for leaks. As I am not confident in attempting any potential repairs, I willl end up contacting a specialist. (I am confident with small two-stroke engines of the 1970's!!)
 
   / NH TD5.95 drifts to the right - worse when faster
  • Thread Starter
#5  
Please could someone give me an idea where the orbitrol motor is located? I see lots of paying download links for the workshop manual for TD series machines but I have been bitten by one of those with my old Massey in the past.
 
   / NH TD5.95 drifts to the right - worse when faster #6  
On the end of the steering shaft, under the dash.
 
   / NH TD5.95 drifts to the right - worse when faster #7  
All vehicles drift to the right due to the crown on the road. You don't realize it is a car because it's suspension geometry minimizes that effect.
 
   / NH TD5.95 drifts to the right - worse when faster
  • Thread Starter
#8  
All vehicles drift to the right due to the crown on the road. You don't realize it is a car because it's suspension geometry minimizes that effect.
I can see how that would work but we drive on the left here and the roads are all single track in any case.

Thanks for the comment though.
 
   / NH TD5.95 drifts to the right - worse when faster #10  
Thank you. I shall see what I can remove to get at it.
It is often a royal pain to get to. Personally I would check the easiest first. Jack up the front wheels and verify the bearings and tierod ends are good. Then measure the toe in.
Then to get to the more likely issue check the steering cylinder. Is yours a single cylinder mounted in the center of the axle. Disconnect one hose and put it in a bucket (securely as fluid flow will make a hose jump) if your cylinder is behind the front axle, the hose on the left side would get pressure from the orbitol when trying to turn to the left. So with the left side hose disconnected an attempted turn to the right should move the cylinder rod to turn right with just residue fluid to come out of the cylinder continuous flow wold indicate an issue with the center piston seal.
 

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