I have a front loader I wish to install on my 300 , need some advise about where the hyd lines connect to the sys on tractor.My 300 has an indep PTO ( big thing hanging on back ) and the various valves are on Right side of seat. A 3 pt hyd cyl hangs on the back and is plumbed to a valve on right side of seat . How do I modify the connections to add lines to the spools of loader...Thanks ( 2nd post about this,don't know what happened to 1st. Can't find it on this board so might not have pressed enter the required # of times ).........Bill
- Thread starter Wegbuff
- Start date
Tom Dowling
Member
if you have 3 valve handles to the right of steering wheel then you connect to the ports on right and left under gas tank and use the two inner handles to control the loader.
Tom Dowling
Member
previous post i made applies to farmall 300 not Ih 300
Janicholson
Well-known Member
To use the loader valves you need a Power Beyond plate that extends the system to additional valves. You could use the two front valves for the loader by attaching hoses below them. It is a demand based system with a pilot valve to load the system. Jim
Is your 300 a utility with 3 valves along side the seat? If so, the front two valves are used to run the loader and the rear valve to run the fast hitch or 3 point cylinder. I have a 300 Utility with 3 valves, power steering, and a factory loader. If this is what you have, I could send you some pictures of the loader connections to the hydraulic valves. If you don't have a 3 valve system, then you probably will need some modifications to connect up a loader. Al
Hey AJB-830........good reply ( had several ) This is an old 300-U ,no PS (sad ) ...it looks like there are 2 blocks along R side of seat....front block has no hoses ( see pictures ), 2nd block has 2 hoses that run the 3pt cyl.....I have included a pic of the attachment block 4 the loader...guy said this loader had been on tractor but looks like a long time ago...loader was off when he bought it and off when I bought it....
Janicholson
Well-known Member
I do not my 350 U has 3 valves from the factory. There are a bunch of designs. I do not know which is correct. I do not think those ports on the plate in your picture are aligned for power beyond. Jim
I think what you have is a 300 Utility with just a pressure regulator and a single valve. To operate the loader you will have to add two additional valves, one for the loader arms and the other for the bucket. The pictures I took on my 300 Utility show a pressure regulator/PS flow divider mounted in the rear. The rear valve attached to the regulator operates the fast hitch. The two front valves operate the loader. The front valves are fed from a pipe coming off the regulator, going to the rear valve, and then the two front valves. This is a totally factory system with the 3 valves and power steering.
So if you don't have the front valves, not sure there is anyway to operate both the hitch and loader at the same time. Maybe someone else might have some suggestions. Al
So if you don't have the front valves, not sure there is anyway to operate both the hitch and loader at the same time. Maybe someone else might have some suggestions. Al
Hey AJB-830..........good pictures....will have to print them and check against my 300.....Might be easier to find a factory valve from salvage than to modify what I have.....the pipe out the back ( middle pic ) would be the pressure ?? line...where is the return plumbed.....as 4 my needing 2 more valves,the loader has a double valve spool on it...I just need to plumb to it....I suppose an either or switch might be a solution but I was looking 4 a more practical solution.Was also hoping someone had added a loader to something like mine and had made the modifications......thanks ...Bill
I think the pipe you see is the pressure side. I believe the oil is returned back to the tank by going through the valves. Go to the IH parts page for a 300/350 and look at the valves. I know that the 1st valve has different internals than the 2nd & 3rd valves. You might have to get help from someone who knows these valves as you cannot always just add a valve. I have added the 3rd valve on a 350 and 450 tractor, but always got them from a junk tractor that had the 3rd valve. Never messed with adding valves on a 300 utility. Al
here are 4 pictures...please notice the 2 plugs on top of the valve( works the 3 pt )....I removed one and there are no springs,balls etc...just fluid....so can I plumb from these to my double spool on a loader ....would I have to actuate the lever 4 the 3 pt to get pressure ( bummer )......Bill
If I remember, these valves have outputs on both sides. My best guess is those ports are the same as the ports that power your 3-pt hitch cylinder. I am pretty sure that on the valves on my 400/450 you can plump the lines to either the front or back. Reason is that on a 400/450 the 1st valve has hydraulic lines going to the rear fast hitch and the other 2 valves they plumb to the front. I have a spare valve on the farm and I can check next week if it has ports on both sides. Al
Thanks 4 the response...will wait....but in the meanwhile can U tell me the function of this valve (?)...it is in the location where most pictures show the 2-3 valves 4 a loader........this one does nothing that I can see and the IT book that I have is of no help....looked at lots of images on net and don't to seem to find this one....is it just a place holder I wonder...thanks....Bill
Bill, On the single valve system, my guess is that this is the pressure regulator. Looked in my 400 parts book and it looks just like the 400 pressure regulator. On my 300 the pressure regulator/PS flow divider is mounted between the rear valve and the transmission case. I tried to log into the Case-IH parts site tonight, but it seems to be down. I also looked at the valves on my 300 and they also have the plugs you mention. But I am pretty sure these are just more plumbing connections as these valves can be plumbed from either side. Tomorrow I will try to log into the Case-IH parts site and see if I can find that valve and verify where the pressure regulator is. So not sure I have much good news for you as how to connect your loader to a tractor with just one hydraulic valve. Al
That block you show in your 1st set of pictures appears to be a spacer block that allows you to run remote cylinder lines back to the rear of a 300/400 tractor equipped with at least two valves and a fast-hitch. That block looked familiar and that is a block I have on my 450-D that has a fast-hitch and a rear remote implement cylinder connection. It could be that the person who originally had the loader also had a 300 row-crop and he used it to plumb the two main loader valves to one control valve on the tractor. I don't think it would work on a 300 utility with just a single valve. Al
Thanks 4 the reply......I think I found it in the IT book....called "Regulator and Safety Valve Block"....the display is strangely in a vertical fashion and doesn't show all connections but is most likely the one........I know I've had these 2 valves apart and re-kited them both while trying to solve a bleed back issue on the 3 PT ( would slowly bleed down ),Didn't solve that issue either.I will try the IH site also, slow crawling thru that place though......Thanks again ........Bill
56 Fan 400
Member
I had a bleed issue on my 400. Changed out the cylinder. Fixed the problem. Now this summer will be working on the old cylinder refit as well as other issues on that baby.
Hey there...have had a delay on this project....on this single valve , what is the function of the little hole on the bottom right ( next to the bolt ) ..I 'm sure the other 2 are pressure and suction return holes.....I've looked 4 the various flow diagrams on this 300 and can't find anything ( this is the valve labeled " pressure regulator ) Thanks...Bill
BarnyardEngineering
Well-known Member
- Location
- Rochester, NY
If I were to guess, I would say that is where the pressurized fluid goes when the relief valve is triggered.
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