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Farmall & IHC Tractors Discussion Forum
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help ! Auxiliary control valve 674

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Ian Davies

12-15-2004 16:05:52




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I can not easily lower my front end loader slowly when pushed to lower it gos down real fast and is difficult to go slowly the loader has single acting rams so lowering is by gravity. It is linked to what looks like a factory fitted control valve just above the diff lock pedal ont the right. I looked at the IT shop manuel and the valve is quite complex even if I take it to pieces I doublt if i know how to find the problem any one familiar with this please inform me. thank you

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Ian Davies

12-16-2004 15:12:57




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 Re: help ! Auxiliary control valve 674 in reply to Ian Davies, 12-15-2004 16:05:52  
Thanks mbnok the handle is already quite long so maybe ill get a restrictor valve as that would not alter the pumping flow I am thinking a cheap restrictor valve would be a typical plumbing check valve (one way valve) with a hole driled in the flap. At university we were shown such a system can be used to reduce electric motor cycling (repeatedly going on and off) when a centrifugal pump is connected to a pressure cylinder, forgot about that untill you mentioned restrictor valve.

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mbnok

12-16-2004 07:30:46




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 Re: help ! Auxiliary control valve 674 in reply to Ian Davies, 12-15-2004 16:05:52  
You can get a restrictor valve and put near your cylinder. It flows fast one way and slow the other. I put one on the cylinder for the three point I built for the old H back in the sixtys sure made it work better. Another thing I tried was to bend a longer arm and add it to the arm on the hydraulic valve on a 674 mainly makes it longer and up where you don't have to bend over to get to it. It is fastened on with hose clamps. I think it works a little better. Easy to try.

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