TheOldHokie
Well-known member
Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
You are correct about one thing - you do not know what you don't know. And neither do I.I do appreciate the warnings.
You don't know what I know, and I don't (always) know what I don't know.
I am aware there are different types of fittings on the tractor.
I'm specifically going to tee into the JIC connections on the lines. Looking quickly it seemed to be the simplest, least invasive, moving the lines locations option.
I am good with not forcing things. I'm not worried about mating the wrong threads. Worst case I'll have some more spare fittings floating around.
After looking quickly online, there's apparently metric JIS thread and BSP JIS thread.
I didn't know there were both.
Definitely more I need to learn about tractor hydraulics, waiting til I'm at that point to expend the mental energy on it.
I'm not done with the previous discussion, just had to temporarily shelve it.
JIS flare fittings are always BSPP thread. I mistakenly. said the flare angle was the same as JIC - 37 degrees. When I double checked it's actually 30 degrees.
Komatsu flare fittings have the same 30 degree flare angle as JIS but with metric threads.
When you go shopping JIS and Komatsu fittings are not the same thing.
Another fitting you may find on the tractor is DIN (German) metric fittings. Kubota uses them when they need a bite type metric tube fitting. DIN tube fittings have metric threads and a 60 degree cone seat. They come in three series - Extra light, Light, and Heavy.
You can easily mismatch some of these fittings and you will not know it until it fails in service. Dozens of examples in the stories here.
Dan