TN65 New Holland 2003, Remote Hydraulic Leak

Glen_N_SC · Jun 16, 2017

TN65 New Holland 2003. Remote banjo bolt leak... Need expertise/advice! Have a 32LA loader remote. The seal washer on the banjo bolt began to drip, then sprung a leak. I replaced the Banjo bolt seals now 3 times and I cannot get the leak to stop. The seal washers are M22. I bought a new banjo bolt. No solution. Tried tightening low torque and high. No solution. Swapped to brass washers. No solution. Now I considering replacing the tube/line that the bolt goes through, but can't understand why this would be the issue. Is there some check valve or other component that might be causing over-pressure? Other suggestion of experience would be most helpful. Thanks.

Dune Country · Jun 16, 2017

Well if you changed the washers and bolt and it still leaks probably the banjo itself. Some have ridges on the face to help it seal.
Don't know about pressures.

Glen_N_SC · Jun 16, 2017

Thanks. I was thinking about replacing the tube (banjo fitting.) But, as many of you know, chasing a fix can cost money when you don't have a
real idea if that's the issue. But, on the other hand, what else could it be?

Bob Bancroft · Jun 16, 2017

I'm wondering of there's a crack in that fitting?
Did you run the new bolt in without the fitting/line in place to make sure the bolt is not bottoming out?

I bought a low hour TT60A and had a similar issue. I think the original owner lived with it, as if not worked under pressure, it didn't leak much. It started to baffle me. I could see where a new washer was not squeezed evenly. Turned out the threads were so poor in the housing it would cross thread slightly, AND where the relief was machined into the bolt/adaptor for the washer, it wasn't machined quite small enough for the washer to set down square and tight like it should.

jsborn · Jun 17, 2017

(quoted from post at 21:26:33 06/16/17) [size=18:e796ef341b] I'm wondering of there's a crack in that fitting?[/size:e796ef341b]
Did you run the new bolt in without the fitting/line in place to make sure the bolt is not bottoming out?

I bought a low hour TT60A and had a similar issue. I think the original owner lived with it, as if not worked under pressure, it didn't leak much. It started to baffle me. I could see where a new washer was not squeezed evenly. Turned out the threads were so poor in the housing it would cross thread slightly, AND where the relief was machined into the bolt/adaptor for the washer, it wasn't machined quite small enough for the washer to set down square and tight like it should.

Had one on a TD-16 injector pump doing the same thing ,after replacing the seal a few times (on the back of the pump) finally found it to be leaking and cracked at the joint between the fitting and tubing. took the line off and had it re-welded / brazed and all is well.

Glen_N_SC · Jul 11, 2017

Problem solved. The issue was a cracked hydraulic tube at the banjo fitting. I purchased a replacement tube and new seal washers. The replacement took about 3 hours and is a bit of a hassle. However, it was the source of the leak. This now answers why replacing the seal washers alone was not a valid solution. No matter how much the banjo bolt was tightened, the crack just got worse. Thanks to those of you that offered help with this.(SEE PHOTO).
<image src="http://forums.yesterdaystractors.com/photos/mvphoto418.jpg"/>

Glen_N_SC · Jul 11, 2017

Dead on... Cracked fitting. Thanks!

TN65 New Holland 2003, Remote Hydraulic Leak

Glen_N_SC

New User

Dune Country

Well-known Member

Glen_N_SC

New User

Bob Bancroft

Well-known Member

jsborn

Member

Glen_N_SC

New User

Glen_N_SC

New User

Similar threads