B250 International McCormick Hydraulics

Hi All! Was not sure which category my B250 fits into so posted it here. I don't use any accessory hydraulics besides my loader however a person asked me what the other ports are for. I numbered them if anyone can tell me. Thank you for your help in advance.

They are not hydraulic takeoff points, they are for adjustments of the valve chest. DO NOT undo them while the engine is running.MJ in the UK Owner of the 49th and 98th B250s made.

According to I-T manual IH-201, the plug you have labeled '2' can be removed and a remote coupling added. The shiny 'D' shaped thing all the way to the left is, according to I-T, the remains of the control lever. I'm guessing that this is a gravity drop system.

Thank you for the valuable info fellows.

"2" is the port for a remote. Turn the "t" handle ccw for the 3 point hitch and cw to operate the remote.
jim

(quoted from post at 08:27:34 04/21/17) "2" is the port for a remote. Turn the "t" handle ccw for the 3 point hitch and cw to operate the remote.
jim

Click to expand...

Thank you. I traced the line attached to hydraulic line between the caps 2 & 4 and it comes from the oulet labelled port of my loader spool valve. I suspect it returns oil to the tank, possibly for oil from the relief pressure part of the loader spool valve?

I read in my operators manual the cap labelled 2 is for a remote hydraulic implement. Yet is it a return port or pressurized port to remote implement?

The hydraulic pump on the front right of the diesel engine supplies oil to the loader spool valve and then theres a line from loader spool valve to rear top of tank behind seat.

So if a person connects a wood splitter cylinder to tractor, "t" into pressurized line from pump feeding loader spool valve which would feed pressurized oil to wood splitter spool valve?

I suspect a return line from woodsplitter spool valve to fitting on top of tank behind seat?

Kind of confused about the port labelled 2.

On the top of the hydraulic tank the last owner plumbed in a "T" which threads one top of the T into the tank. The trunk of the T brings in oil from the loader spool valve and the other top of the T has a pkug so you can fill the hydraulic tank. I have photos to show yet my wifi is really slow and the online program that stores my photos has been locking up. I'll try to load more photos next week.

Posting some photos I took of my B250 when I first got it and I was asking people what things were. I learned 12 is the tranny fill plug and there is a small bolt on side you take out which will dribble oil when its full enough. Also in this photo you will see a metal tube joined with a rubber hose. This is the tube that gravity feeds the hydraulic pump for my loader. I expect the pump also sucks the fluid. The rubber line below it is the return line from the loader spool valves to the reservoir tank behind seat.






Here is a photo of the rubber line that returns oil to the reservoir tank. Last owner plumbed it in with a T fitting so he could top up reservoir tank. Parts 11 in my owners manual show 1 chain each descends from each of these to lower links of 3 point hitch.






The hydraulic line between caps 2 and 4 is a return line from my loader spool valves. Caps 1, 3, and 4 I was told by "MJ in the UK "They are not hydraulic takeoff points, they are for adjustments of the valve chest. DO NOT undo them while the engine is running." My manual says nothing about them so thank you MJ from the UK.

According "Fritz Maurer" and my operators manual the cap labeled 2 can be removed and a remote coupling added. Thank you Fritz. The remote coupling would be an attaching point that a hydraulic line could be attached to from a farm implement or to a wood splitter. I expect B250 dealerships back in the day sold a remote coupling that mounted to tractor. Cap 2 would be removed and a line was added with a banjo type end fitting. At other end of remote coupling line it had a self sealing end so dirt would not enter until a hydraulic farm implement was connected. My tractor does not have a remote coupling. I was told by "ihplowboy" and read in my manual that you turn the "T" handle (isolating valve) fully out ccw for the 3 point hitch and fully in cw to operate the remote coupling.

I'm now thinking the handle that controls the height of the 3 point hitch arms then controls the remote coupling flow\pressure I expect when the "T" handle is turned cw fully in??

Manual says make sure isolating valve is fully turned in or out.

I may mount a hydraulic winch on rear of my B250 so I'm thinking the remote coupling would be the way to go. I expect I would still have a return line to top of reservoir. I have the spool valves and lines to control direction of winch also.





Here is a photo of the remote coupling from my B250 owners manual:



I expect a shop could make up a line, maybe not with the fitting shown in the diagram yet something that will work. Possibly thread a straight or elbow fitting into valve body and then attach a line to it. Then just cap off line when not in use.



Here's a photo of my tractor when I first got it.






Here is tractor after I got it home in 2010.