Help - Can't figure out how to fix hydraulic leak on Kioti CK2620

[TimberFarm]

Sidebar, but hydraulic related. When I was at Ellsworth my hydraulic guys came to me with a hydraulic problem. They told me an aircraft had a hydraulic leak and there was no way they could get to it. I told them, in that case we'll call Davis Montana Air Force base and send the plane to the boneyard for scrap. With that leak we can no longer fly the plane.

That put it in perspective for them and they got it fixed. But they had to cut out five perfectly good lines to gain access to the leaking one, repair that one, and then repair the five they cut out. All the tubing was titanium, which has no "tweaking" ability. It has to be bent to perfect fit or it won't work. The lines are then connected with special shrink fittings that were stored in liquid nitrogen.

Doug in SW IA

"Monthan"

 

[dougtrr2]

Thank you, it took me three tries to keep the program from self correcting it. I finally had to right click and ignore the spelling.

Doug in SW IA

 

[JorgePR]

Sometimes the lines will have a small burr just where the seal should be, when you loosen it take a look see if the area may have burr smooth it out and retighten.

 

[kiotick2620_2024]

Update:I was finally able to get this leak fixed this week! It seemed to be way more difficult than it should be.
Thank you all - I followed the recommendations from this group and bought the metric flare nut wrench set from Harbor Freight (which was only 16 bucks) and luckily came with the 22MM that I needed. It is the biggest wrench in the set. I still couldn't get them to work at first though....

I had already taken the plastic cup holder / cover off (but that was probably not necessary as I still couldn't get to the hose connections from above in the end)....

I had to work from below the tractor on the floor up in the rear wheel well and remove all 4 of the hydrauilc hoses in the proper order; of course the one I needed to tighten was the most inacessible of them all and I needed the three others out of the way to get to it.
Once I had all the other hoses out of the way it was a bit easier but still not as easy as you would expect for a regular service item on a new tractor. I was a little reluctant to start removing all the hoses as I am not an experienced tractor mechanic... but it was easier than I thought and it all went back together easily and smoothly.

 

[S854]

Another job well done!