Damaged hydraulic connector (B2650 3rd function)

[D2Cat]

The problem isn't the Teflon tape, so to speak, it's when the tape ends up in the hydraulic system it can cause parts to not function properly. So if tape is used that's why the first couple of threads are left bare, to make sure no tape is cut off by the threads and enters the hyd. system.

Some folks will put on Teflon tape and then pipe dope. Their thought is the tape make it easier the next time their used to get clean.

 

[brooster]

I had a backhoe connector that leaked, look on the collar and all info you need should be there

 

[DustyRusty]

Teflon tape was originally for pipe threads that were frequently removed and reinstalled, and it would take up the space that was worn down on the threads from assembly/ disassembly/ reassembly many times. This type of plumbing was used on trucks that deliver liquid products such as fuel oil etc. It was never intended to be used on new threads, however in the 50+ years that it has been around, its application use has changed dramatically. New pipe threads are sharp and you will have a better leak-free connection using pipe dope. Teflon tape is never used on gas fittings, it is always pipe dope. Pipe fittings threads are tapered and that is how they seal. In the old days, plumbers would wrap cotton thread around the threads with the pipe dope if the threads were worn to get a leak-free joint.

 

[BetterThanAShovel]

Did some research, and Loctite 545 seemed to have the least amount of shocked and aghast reactions to being used on the threads. So I'll go with that.

 

[DustyRusty]

Did some research, and Loctite 545 seemed to have the least amount of shocked and aghast reactions to being used on the threads. So I'll go with that.

An expensive solution to a very basic need. Coupling two pipe fittings together with a bottle of pipe dope that cost under $5.00 at any home improvement store. It is a tractor, not a space shuttle!

 

[BetterThanAShovel]

An expensive solution to a very basic need. Coupling two pipe fittings together with a bottle of pipe dope that cost under $5.00 at any home improvement store. It is a tractor, not a space shuttle!

Hey, just because you don't love YOUR tractor enough to give it the good stuff.....

Then again, every $ saved can go towards the next implement. The little bottle of loctite was only $24, but I made sure it said Free Returns before I bought it. So I can send it back if the normal pipe dope is good enough. I think I may even have some already laying around...does that stuff ever go bad?

 

[TheOldHokie]

Hey, just because you don't love YOUR tractor enough to give it the good stuff.....

Then again, every $ saved can go towards the next implement. The little bottle of loctite was only $24, but I made sure it said Free Returns before I bought it. So I can send it back if the normal pipe dope is good enough. I think I may even have some already laying around...does that stuff ever go bad?

In truth a small roll of PTFE tape as used by Kubota technicians is "good enough" for Kubota, never goes bad, and costs less than a dollar.

Dan

 

[DustyRusty]

Hey, just because you don't love YOUR tractor enough to give it the good stuff.....

Then again, every $ saved can go towards the next implement. The little bottle of loctite was only $24, but I made sure it said Free Returns before I bought it. So I can send it back if the normal pipe dope is good enough. I think I may even have some already laying around...does that stuff ever go bad?

I have a can of Rectorseal #5 that I know is at least 45 years old, and it still is as good as the day that I opened it. The only reason that it is still around, is because it was hidden in the back corner of an old toolbox that I rarely ever use since it has tools that are ancient by today's standards. When is the last time that anyone installed kingpins that needed to be reamed to fit? When I found it, I put it on the shelf with other pipe sealants and I used it on the pipe threads of the new hoses for my 3rd function valve. Just had to stir it to reconstitute the liquids with the solids.

 

[BetterThanAShovel]

I know, I know...an old thread. But I just wanted to thank you all for the help. Yesterday finally proved sunny enough that I undertook the repair. I took the added step of removing the very large un-needed 3rd hydraulic fitting from the bracket so I'm just left with the 2 connectors I actually use. I've observed no leaks yet!

Thanks for holding my hand through all that!

Rob