NH T1530 hydraulic leak - Help!

[Tom_in_austin]

NH 1530 hydraulic leak - Help!

I have a New Holland T1530 with a slow hydraulic leak out of the back near the PTO. This tractor was my late father's and he appears to have stuck a cork in the hole that was leaking. this tractor is not close to me, so I can only offer this photo of the cork/location. What is supposted to be in the hole, if anything? Hopefully, a fellow New Holland Boomer series owner can help me out. I have already called the local dealer and he has no drawings of this side of the housing, so he wasn't able to help.

 

[Bedlam]

Interesting ..I can add much other than it appears to me to be some sort of adjustment, and the "nut" is to lock it into position .
Lets see what the others think.

 

[Tom_in_austin]

I'm pretty sure the cork, nut and screw do not belong there and are just a quick patch for the leak. The question is whether a hydraulic plug(and what size?) or something else is supposed to go in there. Maybe nothing but some sort of pressed-in plug belongs there. I would really like to hear from other T15XX series owners with what their tractors have at that location.

 

[Tom_in_austin]

I guess a follow up question is: It this tractor SAE or Metric?

 

[RickB]

I guess a follow up question is: It this tractor SAE or Metric?

Metric. But I question that it is a T1530. If it were, it would have a black chassis, not gray. And if it were truly a T1530, it would be fully covered under warranty, as that model has been out less than a year. This is clearly a gray chassis New Holland with some experience.

 

[Bedlam]

I agree it could be some sort of plug that seals with the adjustment to the screw center and the nut. Much like the rubber ones they make with a wing nut on them for plumbing applications

 

[Tom_in_austin]

I agree it could be some sort of plug that seals with the adjustment to the screw center and the nut. Much like the rubber ones they make with a wing nut on them for plumbing applications

I know what is in there. It's a patch for what is supposed to go there. The question is: What is really supposed to be there?

It's about a 10 year old tractor and the label says T1530.

 

[Tom_in_austin]

Further investigation...

Label says T1530, hood says T1530, but this tractor matches the drawings and specs on the New Holland site for a 1530 (no T) tractor. Dealerships can't seem to help. The drawings on the NH website don't show this face of the rear transmission case. Have put a request for info directly to New Holland and will wait and see. I suspect there should be an oil seal, something to hold it in and a cover in that hole, but the exploded drawings don't show the hole.

I may just have to make a better plug on my own. The hole is not threaded.

Maybe bolt in the hole just above the plug could hold a homemade plug inside, but... I can't find any drawings indicating what size threads those are. I tried M16 bolt and it goes in about 2 turns only.

 

[jimmysisson]

If that's like a 3/4" hole you may be able to find a compression-type repair oil pan drain plug that might fit it. They stay in pretty snug.
Jim

 

[dqdave1]

Ok; went and looked at my 10 year old tc29. It has same setup as yours. Where your leak is, used to be a pressed seal from factory.
Part you are looking for may be SBA322140280