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Farmall & IHC Tractors Discussion Forum
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What valve config for new 3pt

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MM

03-09-2004 06:35:59




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Thanks Dan for answers to my earlier post

I Just put on a Saganaw 3pt on my M and am very excited about it but am new to how 3pt equipment handles in use. I will use a 2-spool 4 way. The hitch has a float position by pulling 2 pins so I assume that spool doesn't need a float position. What would be the advantages and disadvantages of a float for the extra spool? First I am going to use a heavy middlebuster to rip up roots, future equipment will be post hole digger, box blade, cultivaters. The 2nd spool is just so it is there if I need it.
Thanks for any advice

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MM

03-09-2004 07:28:38




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 Re: What valve config for new 3pt in reply to MM, 03-09-2004 06:35:59  
Thanks again_It does help to hear what works.
Well I thought I had my head around the hydraulic functions of the valve, but gotta admit I wasn't thinking about detent. Can you explain how that works?



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Theman

03-09-2004 10:35:24




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 Re: Re: What valve config for new 3pt in reply to MM, 03-09-2004 07:28:38  
The detent holds the valve spool open until a preset resistance (back pressure) is reached. When your cylinder reaches the end of its stroke, the rise in pressure makes the detent release. The spool automatically returns to the center (off) position. You can pull the lever back to center by hand at any time if you wish. The "release" pressure is usually adjustable - much like a pressure relief valve. If adjusted too tight, it is hard on the hoses and ram seals. If adjusted too low, the valve can shut off before the implement is completely raised.

Safety precaution: Don't operate your remote hydraulics from the ground no matter which valve you buy. A knee, arm, or (in my case) a foot could be in the way of all that power. The extra few seconds saved isn't worth it.

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Theman

03-09-2004 06:56:31




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 Re: What valve config for new 3pt in reply to MM, 03-09-2004 06:35:59  
Since you asked...I advise you to get a valve with at least one detent. When you're running that middlebuster and get to the end of the row, you can throw the lever to raise the implement and it will continue to raise while you make your turn with both hands. This is much easier on your back to not be reaching forward to hold a lever while spinning the wheel and checking the blade in a turn. Most log splitter valves are this way. Just a thought from a former row-cropper.

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Dan

03-09-2004 06:49:34




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 Re: What valve config for new 3pt in reply to MM, 03-09-2004 06:35:59  
When I got my 2 spool valve I debated on a float position for the second one. I pull an offset disc with wheels and hydraulic cylinder lift. The float position would probably work ok there when running it all the way down. Think you are wise to get a 2 spool valve when doing it as it is easier than to add on later. I do not use the down pressure on my 3 point much. Have used it with cultivator and disc in harder ground but just tends to take the weight off the rear wheels. On my 3 point I can pull the 2 pins, drop the 3 point and replace the pins so that the cylinder lifts against them. It lifts higher that way. Most implements are made to pull themselves into the ground if conditions are right. sometimes down pressure can cause breakage or bending. There are tmes wehn down pressure on a rear blade may help but if you take the weight off your rear wheels you can't pull it anyway. One thing it does help with is keeping an implement at a set height as it won't move up or down.

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