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  1. #1
    Bronze Member
    Join Date
    Oct 2008
    Posts
    50
    Location
    Southern Oregon
    Tractor
    1973Ford 4000

    Default A home made tool

    I don't post too much here but thought maybe you guys might be interested in this tool I made for my tractor hydraulics.

    The other day I was trying to connect the hydraulic couplings on the tractor and I just did not have enough strength in my wrist to completely push the connector to gather.

    Some where I saw a picture of a pair of pliers that had a fork on the end of the pliers. You slipped the fork over the pipe and squeezed them together and and that forced the coupling together.

    While I was trying to get the coupler together I was thinking about something that I could use to make a tool to accomplish the same thing.
    This is what I came up with.

    The first Pic. is the hydraulic coupling. You slide the knurled part back and shove the other piece in. That is what I could not accomplish. So I thought about a fork that would slide down into the grove in the yellow circles.

    Pic 2 and 3 is machining the fork. I made several pases to get the fork cut.

    Pic 4 drilling the bolt holes in the pipe clamp pads.

    Pic 5 The tool is complete. You start the coupling together put the forks down in the groves and gently close the pipe clamp shoving the coupling together.
    Attached Thumbnails Attached Thumbnails -2003_0104image0008-jpg   -2003_0104image0001-jpg   -2003_0104image0002-jpg   -2003_0104image0003-jpg   -2003_0104image0005-jpg  


  2. #2
    Platinum Member Matt_Jr's Avatar
    Join Date
    May 2006
    Posts
    598
    Location
    linden, Virginia
    Tractor
    BX 24

    Default Re: A home made tool

    Looks handy. Have you tested it out yet?
    -Matt

    "There is nothing more exhilarating then being shot at and missed." -Winston Churchhill

    "I know of no higher fortitude than stubbornness in the face of overwhelming odds." -Louis Nizer

  3. #3
    Epic Contributor Bird's Avatar
    Join Date
    Mar 2000
    Posts
    37,281
    Location
    Texas

    Default Re: A home made tool

    The other day I was trying to connect the hydraulic couplings on the tractor and I just did not have enough strength in my wrist to completely push the connector to gather.
    You've made an interesting tool, but the only reason I know of that makes the couplers hard to push together is pressure in one or both of the lines. So it's relatively easy to relieve that pressure. If it's the male coupler, just put a rag over the end and hit it once with a mallet. You won't lose much fluid. If it's the female coupler, put a rag over it and insert a drift pin and tap it once. That's much quicker than using your new tool.
    Bird

  4. #4
    New Member
    Join Date
    Aug 2008
    Posts
    12
    Location
    Caribou Maine
    Tractor
    2003 BX2200

    Default Re: A home made tool

    I agree with you on relieving the hydo pressure and it being easier and quicker. However if you have a set of arthiritic wrists, elbows, shoulders and all the involved muscles, relieving all the pressure you want still will not make it easy enough to push these couplers together. Great tool.

  5. #5
    Epic Contributor Bird's Avatar
    Join Date
    Mar 2000
    Posts
    37,281
    Location
    Texas

    Default Re: A home made tool

    Yes, it can certainly be a handy tool. I just don't know the original poster well enough to know whether he was aware of how to relieve the hydraulic pressure or not. If so, and he still has a problem connecting the couplers, then his tool is going to be very handy.
    Bird

  6. #6
    Elite Member zzvyb6's Avatar
    Join Date
    Dec 2006
    Posts
    2,543
    Location
    michigan
    Tractor
    jd 1070

    Default Re: A home made tool

    My JD4020 had a cam lever on the back outlets that forced the male connector in. Relieving the pressure on quick contacts with a punch is ok if the cylinder(s) are unloaded, but out in the field, if a hose comes off and the mower header is all the way up (for example), the whole cylinder has to be drained before you would be able to hook it back up (unless you happen to carry along a spare floor jack out in the field). A tool like this could be built into the outlet case/bracket so if the need arises, the forced penetration can be accomplished without much fluid loss. (I've also had the need for such a thing when a loader connector must be reinserted and the lift arms are all the way up. That's over a gallon of fluid that you need to disperse. But, I'm probably the only one whose ever done dumb things like this... Everybody else probably takes their stuff into the living room before they unhook so things won't get dirty.

    Gotta go, need to use the Dysan vac on the cab floor because there was some dust on my slippers when I drove the 'Bota out to get the mail this morning...
    There is no "I" in team, but there is a "Me" if you want to jumble it up a bit...

  7. #7
    Bronze Member
    Join Date
    Oct 2008
    Posts
    50
    Location
    Southern Oregon
    Tractor
    1973Ford 4000

    Default Re: A home made tool

    Thanks Bird for the comment. I have been around hydraulics in one form or anthor most of my life so I was aware of that method. Or in the case of my old 73 ford 4000 I can just shut off the engine and operate the control valves.

    My reason on making this tool is more like Lfgengler said, the dang arthritis or something has gotten into my left wrist.

    Matt, to answer your question, Yes and No. when I first started this project I hooked the edge of the pipe clamp pads in the slots and pressed the two parts together. This gave me the idea for the forks so I machined up what you see in the picture and bolted them to the pipe clamp.

    One thing I did not mention was I also machined a 5* wedge on the fork. Not all of the slots like are marked in the yellow circle will be the same,depending how hard they were threaded together. The fork being tapered should fit most any slot.

  8. #8
    Gold Member
    Join Date
    Oct 2007
    Posts
    260
    Location
    Orange Cty., NY
    Tractor
    NH TN-70A, Cub Cadet 109, Kubota U-35 mini-ex,SCAG Wild Cat

    Default Re: A home made tool

    Looks like they should work great KC. Just another reason why owning a milling machine comes in pretty handy.

  9. #9
    Elite Member
    Join Date
    Oct 2003
    Posts
    3,215
    Location
    the Steernbos (Holland)
    Tractor
    Zetor 3011, Zetor 5718

    Default Re: A home made tool

    Quote Originally Posted by LFGENGLER View Post
    I agree with you on relieving the hydo pressure and it being easier and quicker. However if you have a set of arthiritic wrists, elbows, shoulders and all the involved muscles, relieving all the pressure you want still will not make it easy enough to push these couplers together. Great tool.
    From what i see, you;re attaching two loose ends of hose.
    On my frontloader i had a nice bracket lasercut at the company i worked back then, through which the female coupler is screwed. Attaching is very easy, i pull the collar, hold the male end in it so the collar just doesnt pop back, then i take the male coupler with two hands to push the couplers fully together.

    I know putting couplers together, one in each hand, is a pain, i cant do that either even though i dont have arthritis....
    Free scrap is a good investment !!!
    “The worst enemy of life, freedom and the common decencies is total anarchy; their second worst enemy is total efficiency” · Aldous Huxley
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    1967 Zetor 3011, restoration in progress: Technically new, just needs the cosmetics..
    1973 Zetor 5718, home made loader
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    2007 Volvo 440 1.9 TD based dirt buggy, needs time !

  10. #10
    Veteran Member kthompson's Avatar
    Join Date
    Sep 2008
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    1,057
    Location
    South Carolina
    Tractor
    Kubota M 6800; Kubota B 2710; Gator; Bushhog ZTR; Volvo Mini Excavator EC45

    Default Re: A home made tool

    The kubota female fittings on my tractor do not require your moving any sleeve. It is just push the fitting in and pull it out. If you were to forget to disconnect it will when you drive off. Costly fittings and when I damaged one did not know how much better than was until I used a standard one with sleeve to slide. I will toss that fitting one day and get the Kubota design.

    I have a friend who runs skid steer and he told me the fittings on it can be hooked and unhooked with pressure on it with no loss of fluid. If that is correct it would seem we should toss other designs and use that design only. Does anyone here know?
    Jeremiah 2:11a "Has a nation changed its gods, Which are not gods?

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