TC40D 16LA loader leaking hydro fluid

/ TC40D 16LA loader leaking hydro fluid #1  

daileyland

New member
Joined
Oct 22, 2025
Messages
3
Tractor
New Holland TC-40D
I have a New Holland TC40D. I was pushing a large tree that had fallen with the 16LA loader and blew two hoses. I changed them out but have a large leak coming from somewhere mid-point on the tractor. Oil is dripping constantly. It appears to be in the area of the manifold diverter box. Tightened all hose connections, which were a little loose, but still leaking. Your thoughts on where to start next will be greatly appreciated. Unfortunately, my nearest dealer is an hour away.
 
/ TC40D 16LA loader leaking hydro fluid #2  
Welcome to TBN!

Hard to help without more description or pictures.

You must have jarred the loader pretty hard to blow some hoses. The relief is in the diverter, red arrow. It may be stuck, but not likely, just a very sharp jar on the system.
As far as the leaks are concerned, it could be leaking from the relief plug, the diverter valve stem, green arrow, or one of the blanking plugs may just be loose.
 
/ TC40D 16LA loader leaking hydro fluid #3  
Welcome to TBN!

Hard to help without more description or pictures.

You must have jarred the loader pretty hard to blow some hoses. The relief is in the diverter, red arrow. It may be stuck, but not likely, just a very sharp jar on the system.
As far as the leaks are concerned, it could be leaking from the relief plug, the diverter valve stem, green arrow, or one of the blanking plugs may just be loose.
> > The quiver is empty.
 
/ TC40D 16LA loader leaking hydro fluid #4  
Unfortunately for you we cant see the leak from here. The best person and place to see a leak is you and being by your tractor.

Any following responses will be a guess or "last time I had a leak it was xxxxxx"
 
/ TC40D 16LA loader leaking hydro fluid
  • Thread Starter
#5  
Unfortunately for you we cant see the leak from here. The best person and place to see a leak is you and being by your tractor.

Any following responses will be a guess or "last time I had a leak it was xxxxxx"
 
/ TC40D 16LA loader leaking hydro fluid
  • Thread Starter
#6  
Apologize to everyone. It took me a while to get back to this post. After I degreased, cleaned everything up and took the rubber floor and covers off everything, turns out I didn't have a hydraulic leak. It was the fuel line leaking and running down on the manifold diverter box. Still a chore to fix but certainly better than a leak in the hydraulic system. Appreciate everyone's interest
 

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