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Adding 2nd Hyd Valve to 756/706


 
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Loren in MN
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PostPosted: Sat Jul 27, 2013 4:50 pm    Post subject: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

I need help! Trying to add a 2nd valve under the seat. I have all the piping and fittings but they don"t seem to fit well.
Originally the tractor had a single valve with steel piping (both lines together -one piece) that mounted on top the valve -exiting rearward to the left rear side to a junction block, which then had two hyd connectors rearward to an implement and also attached to piping that goes forward on the left side of the seat.
I"m adding an original IHC valve and moving the current valve to the outside/left of the number one valve.

In the parts manul, it looks like the original dual piping stays with the right valve and the straighter pipe from the front outlet connects to the left valve and then to the lower port thru the casting, then out on the right rear side of the seat. Then the rear outlet of the left valve uses the curved pipe to connect to the top port in the casting just above, but the steel piping that I"ve described for the left valve fits the right #1 valve perfectly -but too short for the left valve, and I can"t get the dual piping (4 1/2" wide on the pipe) to fit into the 2 1/2" wide space from the top of the valve to the seat casting at the far left.
Does the dual one piece pipe get altered/narrowed to fit?

Sorry for the long post.
Loren
 
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mazemeister
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PostPosted: Sat Jul 27, 2013 7:34 pm    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

the piping for the 1st position valve goes rearward, then into the starboard seat support, then out the back. if it connects to front remotes, it goes under the floor and to the left side of the column.

the 2nd position valve goes to the right side of the column, it could also be plumbed to go to the rear.
 
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Loren in MN
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PostPosted: Sat Jul 27, 2013 8:09 pm    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

This 756 tractor has left hyd connectors out the back and steel tubing going forward on both sides of the seat.
The left rear tubing is a one piece setup with both tubes going backward into a solid block that looks like a check valve (but isn't). Then the left front tubing connects to this block on the side and goes forward along the seat.

I understand what you are saying about the right valve connecting to the port side into the casting then out the back. It makes more sense than trying to use the same pipes to connect the second valve to the port side. Once the first valve is plumbed in, it will operate two more rear remotes and it also connects to the right front hyd outlets.
I have picts of the connections on a 706 that uses tubes as you describe (I have those) but uses two seperate tubes from the left valve out the rear.
Some tractors have hyd tubes or hoses exiting out the front of the seat platform that come up under or near the center steering column.

I'm hoping an Farmall expert will chime in, that is farmilar with the one piece steel tube setup with both valve connection tubes exiting out the back into a solid block that then hyd connectors can be mounted.
I need to know if this is modified to fit?

Thanks for your help,
You've answered part of my questions,
Loren
 
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Weldon K
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PostPosted: Sun Jul 28, 2013 11:50 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

Loren, I have 756, 856 and 1456 all with two valves and original steel tubing . I have attached a picture showing routing of tubing from valves to the "blocks". My tractors do not have the steel tubing that runs forward to provide hydraulics for front mounted equipment such as front mounted cultivator. 56 series tractors used steel lines from the rear blocks and routed them under the platform, with couplers mounted under both front corners of the platform . 06 series tractors with front hydraulic couplers had lines that attached to the valves with stacked ( one on top of the other) banjo fittings and routed them under the center of the platform to the steering support pedestal to couplers on both sides of the pedestal.
Hope this helps.
I have more pictures that I can send directly to your e-mail address, (which I believe that I have from corresponding with you at other times), if you want to see more of them .
E-mail if you need to. Weldon K

 
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Loren in MN
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PostPosted: Sun Jul 28, 2013 6:03 pm    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

Thank you greatly- I see that I have the wrong steel piping for the left valve.
I have the style of piping that mounts the right valve for a 706.
I may still cut/adapt the original dual pipe tubing that fits the right valve to a narrower layout and use it on the left valve. Then use the more common tubing that I have from a 706 on the right valve.

Thank you again!
Loren
 
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mazemeister
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PostPosted: Sun Jul 28, 2013 6:46 pm    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

hmm just looked at the case ih parts diagram for 756, and it shows some different stuff than what i've seen on 706/806 which have either 1 banjo fitting with a short bolt or 2 stacked ones with a longer bolt on top of the valve, depending on if it is just front/back or both. so i'd say check out the picture and see if that matches what ya got.
 
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Weldon K
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PostPosted: Mon Jul 29, 2013 2:54 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

I too, looked at the parts catalog for the 706 and it does indeed show different parts than my 756 catalog. Years ago when I added the second valve to my 856 I got a valve from a salvage yard. It had hydraulic fitting elbows on top at the exit ports instead of the banjo fittings with steel tubes. Apparently someone had used it with regular hydraulic hose instead of the steel tubing to go to the "blocks". Before you go to modifying that dual tube assembly ( known as the manifold) , you may want to consider having hose and fittings made up to use on the left valve and run them to the right "block" and use the dual tube manifold on the right valve and run to the left block .
 
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mkirsch
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PostPosted: Mon Jul 29, 2013 4:14 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

When Dad added the second valve to the 756, he used hoses. The difficult part was that the hoses have to be the exact right length or they won't work. Unfortunately that was 30 years ago so neither of us remember the measurements.
 
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Weldon K
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PostPosted: Tue Jul 30, 2013 6:22 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

Of course you could just get the needed steel tubes from Case/IH parts. One of them is $252.30, the other is $380.77 !!!!
 
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Loren in MN
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PostPosted: Tue Jul 30, 2013 6:43 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

Seems that ten years ago, I checked -looking for the grab handle for the left side. I was told $202.00 -seems they may have been making one at a time for that price! Now they are reproducted.

I checked and was told -no longer available. Maybe the dealer knew no one would buy at that price.
Dealer that I checked with said they run hoses. Suprisingly, they didn't have a stock hose or knew the length. They just made them as needed.
They wouldn't let me bother the mechanic to see if he had made notes for the length of hose for his next hyd job.

I had extra tubing, so I'm trying to fab some steel lines but still can use the dual manifold and hoses if needed.

Thank for the help,
Loren
 
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randyevoss@gmail.com
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PostPosted: Tue Jan 12, 2021 10:55 am    Post subject: Re: Adding 2nd Hyd Valve to 756/706 Reply to specific post Reply with quote

[quote="Weldon K"](quoted from post at 12:50:12 07/28/13) Loren, I have 756, 856 and 1456 all with two valves and original steel tubing . I have attached a picture showing routing of tubing from valves to the "blocks". My tractors do not have the steel tubing that runs forward to provide hydraulics for front mounted equipment such as front mounted cultivator. 56 series tractors used steel lines from the rear blocks and routed them under the platform, with couplers mounted under both front corners of the platform . 06 series tractors with front hydraulic couplers had lines that attached to the valves with stacked ( one on top of the other) banjo fittings and routed them under the center of the platform to the steering support pedestal to couplers on both sides of the pedestal.
Hope this helps.
I have more pictures that I can send directly to your e-mail address, (which I believe that I have from corresponding with you at other times), if you want to see more of them .
E-mail if you need to. Weldon K
[
Please email me the photos. I would like to add a second rear outlet to my 1966 706. I need the 756 version I guess. What all is involved?
 
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