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Cultivator delay valve??

Farmall M, Super M, 400, 450 & 560 Tractors, 1939-1963
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TWheat
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Cultivator delay valve??

Postby TWheat » Mon Dec 02, 2013 4:18 pm

This is what I believe to be a lift and lower delay valve for rear cultivators on a Farmall H, M maybe 400.
But I can't remember where it goes. Thoufgt maybe someone here remembers.
delay-valve1.jpg
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dalay-valve2.jpg
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John *.?-!.* cub owner
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Re: Cultivator delay valve??

Postby John *.?-!.* cub owner » Mon Dec 02, 2013 9:01 pm

I never saw one quite like that, but the delay valve was installed in series with the hydraulic line going to the rear lift cylinder. The ones we had were just a fitting with a restriction in it, no stem on the side, etc.
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TWheat
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Re: Cultivator delay valve??

Postby TWheat » Tue Dec 03, 2013 5:43 am

Yeah, that's what I thought , but this one would need a "T" to have an inlet and outlet.

Jim Becker
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Re: Cultivator delay valve??

Postby Jim Becker » Tue Dec 03, 2013 8:58 am

I remember them about the way John does. As I recall, they had a washer-looking part inside that rested against a seat when the oil went one way, forcing the oil through the center hole. Oil going the other way unseated the washer for free flow.

Looks like your part had a part number showing. Post the number and I'll see if I can find anything on it.

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John *.?-!.* cub owner
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Re: Cultivator delay valve??

Postby John *.?-!.* cub owner » Tue Dec 03, 2013 9:27 am

Jim Becker wrote:I remember them about the way John does. As I recall, they had a washer-looking part inside that rested against a seat when the oil went one way, forcing the oil through the center hole. Oil going the other way unseated the washer for free flow.......
Ours was a fixed orifice and delayed the rear section both going up and down, so that the rear lifted and lowered at the same travel point as the front. of course, whether it was at exactly the same point depended on how fast you were traveling.

The one pictured appears to be adjustable, and if the end we cannot see is a female thread, you should be able to unscrew a hose and insert it in series. Screw it in place of hose, and screw hose into the female end. If the bolt sticking out the end simply adjusts the size of the hole, it could be at either end of the hose since flow direction would make no difference. If it has a moving orifice in it like Jim described, flow direction would be critical, so it could only be located at one end.
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Re: Cultivator delay valve??

Postby Jim Becker » Tue Dec 03, 2013 10:10 am

OK, here you go. The piece screwed in the left side isn't part of it. These delay valves only need to work on the lift because delayed drop is built into the main Lift-All unit. If you push the control rod part way the front drops. Pushing it fully in drops everything. Here are 2 diagrams (part of my Nov-Dec 2009 RPM article) that show an exploded parts view of the valve and where it should be installed on the rear lift cylinder.

delayvalveS.jpg
delayvalveS.jpg (19.97 KiB) Viewed 1460 times


schematicS.jpg
schematicS.jpg (87.79 KiB) Viewed 1460 times

TWheat
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Posts: 133
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Re: Cultivator delay valve??

Postby TWheat » Tue Dec 03, 2013 4:33 pm

You got it Jim. I searched out a GSS-5034 (Blue Ribbon manual for the Lift-all.) Like you said, the part on the left is not part of it and is screwed in where the hose would screw in . BTW the part# on mine is 5041E, which is not the same as what the set-up manual shows. Now I am going to pull out the Nov.-Dec. 2009 issue of RPM and re-read your article. Thanks for you help.


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