Needing Help Identifying Hydraulic Fitting Please

[BukitCase]

Aaron, if by "o ring tee" you meant SAE/ORB, that would mean he'd need to ALSO change out his hose since it's also BSPP - sticking with BSPP will be a bit more expensive, but probably NOT if you add in the cost of replacing a hose. The way he's intending, the existing hose would only need to move forward maybe 3" - I doubt that would be much of a problem.

Adding another gauge for pump pressure seems like a good idea, but then I'm kinda hooked on knowing what EVERYTHING is doing EVERYWHERE after 35 YEARS of it ... Steve

 

[aczlan]

Aaron, if by "o ring tee" you meant SAE/ORB, that would mean he'd need to ALSO change out his hose since it's also BSPP - sticking with BSPP will be a bit more expensive, but probably NOT if you add in the cost of replacing a hose. The way he's intending, the existing hose would only need to move forward maybe 3" - I doubt that would be much of a problem.

As I see it, the valve itself has oring fittings on it and piece sticking out of the valve (circled in red below) is an oring to BSPP (or whatever it is) adapter.
If he goes on the valve side of the adapter, he can use a cheaper/easier to find oring tee and then re-use the existing oring to BSPP adapter:


Here is Kubota's parts breakdown for that valve:

Parts 110, 120 and 130 are as follows:

#	PN	Name	Qty	Weight
110	70726-61130	Adapter	5	0.121
120	04811-00140	O Ring	6	0.0022
130	70726-61150	Adapter	1	0.176

Part 120 (the orings) are between parts 110/130 and the valve.
As such, I am 90% certain the fittings sticking out of the valve are Oring to BSPP adapters.

Adding another gauge for pump pressure seems like a good idea, but then I'm kinda hooked on knowing what EVERYTHING is doing EVERYWHERE after 35 YEARS of it ... Steve

As I understand it, this gauge is planned to go on the "lift" side of the loader cylinders. The only thing gained by having it here vs on the high pressure inlet to the valve is that you can see the pressure as you bounce across the ground vs just when lifting the loader.
The downside is that you can't see the pressure for other things (for example when dumping or when using the rear remotes).

Aaron Z

 

[npalen]

Where could I find the info you are showing above as well as additional info on the BF350 loader? I've been unable to find anything online. Thanks.

 

[aczlan]

Where could I find the info you are showing above as well as additional info on the BF350 loader? I've been unable to find anything online. Thanks.

I got that info from the exploded parts diagram on the Kubota website, go to http://kubota.com/part/partsList.aspx enter in BF350 for the model search (note that it does not work for me with Firefox, I have to use Chrome or Internet Explorer).
You can also enter in your model number (B9200) and click on the "Local Options" link.

Aaron Z

 

[npalen]

From post #22 above:
As I understand it, this gauge is planned to go on the "lift" side of the loader cylinders. The only thing gained by having it here vs on the high pressure inlet to the valve is that you can see the pressure as you bounce across the ground vs just when lifting the loader.
The downside is that you can't see the pressure for other things (for example when dumping or when using the rear remotes).

One reason I want to put the gauge on the "lift" side of the loader cylinders, is to diagnose whether settling, albeit very slow, is being caused by bypass in the lift cylinders or the valve spool. I recently replaced all the seals in both lift cylinders and notice that Kubota doesn't use a positive seal on the piston OD and there is no o-ring between the piston and the rod. This leads me to believe that a slight settling was "designed into" the loader.
The piston is a very close fit on the rod end like what you might expect between a valve body and spool so maybe that is a zero leakage design.

 

[powerscol]

npalen

Do you have a NAPA store or any big Agg dealer near you. If so remove the adapter from the valve and take it in. My NAPA store has a fitting gauge to determine everything about a fitting, Pitch threads size, etc. Other shops may have the same. Once you have identified that fitting you should be good. Napa has access to just about everything you can imagine. Question - are you wanting a pernament install, or temp. If temp you will have better luck finding a fitting for at the cylinder, or where you hoses possibly convert to hard line on the boom. The local fix-it man has one he couples in at the cylinder connections - 2 minutes to attach and remove. Its a swivel T that fits the hard line/hose connection with a long hose and gauge on the end. He also carries a bunch of straight line adapters for other locations or brands of tractors - all labeled using an engraver, Wish I had gotten a picture. Kubota may actually have a pressure testing tool for sale too. They will also have the adapter identified on their parts list, Last there is another orange tractor forum (search) than the one here where folks can help. Even ask in the one here too.

Steve may be on to something too. You may be better finding a T that will attach directly to the valve and you hose, that replaces the adapter. This could also be a straight extension fitting (1 to 2" long) that you could drill and tap for you side fitting. Hope this helps.

I learned a lot of this from my FIL that had one of those Russian tractors that were sold in the early 80's. Cant get parts now, but he managed to use home made adapters (out of several fittings) for new sensors, etc and hose fittings, The local NAPA store was able to identify everything for him back then.

Good luck

 

[tre873]

What about taking the hydraulic hose to a hydraulic shop and having them cut the hose and adding a fitting. Then you can use what ever fitting size/style to fit your gauge. You can have them cut the hose 2 or 3 inches from the control valve or anywhere you want the gauge.