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  1. #31
    Veteran Member
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    Jun 2006
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    2,112
    Location
    West Cascades Washington State
    Tractor
    PT 422

    Default Re: PT Steering Project

    Interesting project!

    I seem to be turning and operating the FEL almost constantly. I tried out the spinner but kept catching my fingers on it and jamming them, I'm kind of a klutz, and didn't really seem to need it.

  2. #32
    Gold Member Clumber's Avatar
    Join Date
    Sep 2010
    Posts
    348
    Location
    Northern Virginia
    Tractor
    PT425 (Dec 2010)

    Default Re: PT Steering Project

    Quote Originally Posted by cqaigy2 View Post
    Interesting project!

    I seem to be turning and operating the FEL almost constantly. I tried out the spinner but kept catching my fingers on it and jamming them, I'm kind of a klutz, and didn't really seem to need it.
    I wound plastic tape around the base of knob and the steering wheel to keep from loosening. This also solved the issue of catching fingers on it.
    I married me a hippy, ran away with a stringy haired blond,
    Now we're both old and happy, fishing on our own Golden Pond. -- Merle Haggard


    PT 425 (Dec 2010), Blade, Snow Blower, Sweeper, Spreader, LMB, 4n1, Small Bucket/Teeth, Utility Grapple, Brush Cutter, Box Blade, Mini Hoe/Thumb, Forks, Power Dumper

  3. #33
    Veteran Member
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    Jun 2006
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    West Cascades Washington State
    Tractor
    PT 422

    Default Re: PT Steering Project

    Quote Originally Posted by Clumber View Post
    I wound plastic tape around the base of knob and the steering wheel to keep from loosening. This also solved the issue of catching fingers on it.
    Nice, Id have never thought to do that.

  4. #34
    Epic Contributor MossRoad's Avatar
    Join Date
    Aug 2001
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    23,217
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: PT Steering Project

    Quote Originally Posted by stray View Post
    Ok so at this I do not really need a power beyond valve. Right?
    If you do not get a lever valve with a power beyond port built into it, you will have to find another way to feed power to the loader valve. That will require a TEE fitting (to split the flow to both the steering lever valve and the loader valve), two hoses to feed each valve from that tee, another tee to split the return line and two more hoses to route return fluid from the new lever valve and loader valve back to the tee,

    If you get a steering lever valve with a built in power beyond port, you will need one hose to feed the loader valve.... that's it. It equates to two tees and four hoses with 10 fittings VS one hose and two fittings. Much much simpler and less expensive to get your new steering lever valve with a built in power beyond port, in my opinion.

    Someone else chime in here if I'm missing something please.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
    Of It In Action!!!


  5. #35
    Veteran Member SpringHollow's Avatar
    Join Date
    Dec 2006
    Posts
    1,705
    Location
    South of Rochester, NY
    Tractor
    Power Trac 1850, NH 2120

    Default Re: PT Steering Project

    The only problem I have with the spinner knob is that the side opening for a button cuff can catch on it when steering normally. So I have to be a little careful when wearing long sleeves which is most of the time when doing tractor work. It is not an issue in cold weather when wearing a coat.

    Ken
    PT1850, mini hoe, grapple, stump grinder, brush hog

    http://www.usadiscountgenerators.com...T1850Home.html

  6. #36
    Epic Contributor MossRoad's Avatar
    Join Date
    Aug 2001
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    23,217
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: PT Steering Project

    I have not steered "normally" since I installed my spinner knob. Maybe once or twice just to remember what it feels like, but really, never during normal operations.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
    Of It In Action!!!


  7. #37
    Epic Contributor MossRoad's Avatar
    Join Date
    Aug 2001
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    23,217
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: PT Steering Project

    Just for fun, here's what the inside of the steering valve on a JD340 looks like, which, as far as I can tell, is the exact same valve.
    -430_ww_76-gif

    Pretty complicated valve with 5 sets of seals. No wonder it costs a thousand bucks.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
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  8. #38
    Platinum Member
    Join Date
    Jan 2004
    Posts
    694
    Location
    east TN
    Tractor
    Power-trac 422 January 2003 model

    Default Re: PT Steering Project

    I am in complete agreement that a power beyond valve is needed or at least be best. But just for the “fun of it” what would happen or not happen if say I just put a cheap log splitter valve on it with no power beyond, no detent, just a straight 3 position 4 way valve. Pressure would flow straight through TO the lift, tilt, quick attach valve when the cheap simple valve is in the neutral position you know (open center). Now it could mess with relief settings is one thing. By answering this it will help us understand power beyond. Curious to know why it would not at least half way try to function. Or what might tear up?
    Is power beyond a check valve? Is it a regulator? It would be good to know what is going on when this valve works. Maybe as I research I will be able to answer my own question. But right now I do not have a complete understanding.
    I will go ahead and ad this but do not concentrate on this and forget about the above concern.
    Take a rope and tie it around you waist. Now take your left arm and stick it down through the rope.
    Now leave it there and go out and design a steering system for that condition.

  9. #39
    Epic Contributor MossRoad's Avatar
    Join Date
    Aug 2001
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    23,217
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: PT Steering Project

    On a valve there is high pressure in and low pressure out back to the tank. You can't feed another valve from that low pressure port.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
    Of It In Action!!!


  10. #40
    Epic Contributor MossRoad's Avatar
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    Aug 2001
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    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: PT Steering Project

    We have come to the point where further education is needed.

    I have referred to this in the past, and have re-read parts of it over the years. It is the U.S. Army Field Manual FM 5-499 for hydraulics. It is great reading for all Power Trac owners and will really help anyone that has any questions about hydraulic theory.

    I would attach it here, but it is 1.2M in size, so here is a link to it. Download it to your PC for safe keeping.

    http://www.derijcke.com/dl/manual.pdf

    Read chapter 2 for a starter.
    MossRoad

    Click On My Little Tractor
    To See Pictures And Videos
    Of It In Action!!!


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