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Custom Pin Spanner Wrench for John Deere Cylinder

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  • Custom Pin Spanner Wrench for John Deere Cylinder

    I built a custom pin spanner for my friend John, so that he could replace the piston seals on his John Deere backhoe. I made it from 1 inch stock, which I have kicking around. We tried to buy a standard one, but unfortunately the ancient John Deere tractor didn’t have a standard distance between holes and the diameter of the holes were also larger than standard. Fortunately the one size spanner that we built, will work on all of the cylinders on the backhoe.

    1. John Deere backhoe
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    2. Close up of ram
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    3. Ready for welding
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    4. First Weld
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    5. Second weld
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    sigpic
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

  • #2
    Here are the rest of the pictures
    -Don

    6. Drilling hole for dwl pin
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    7. Reaming hole ofr dwl pin
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    8. Dwl pins pressed in
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    9. Handle attached
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    sigpic
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

    Comment


    • #3
      Well done sir!

      Dale
      "Fear The Government That Wants To Take Your Guns" - Thomas Jefferson..

      Comment


      • #4
        Nice job, and the use of the 1" stock fitted around the shaft corrects the two main faults of most pin wrenches I have used! (flex in the jaw, and nothing to keep it centered. As well, use of the threaded connection, allowing choice of leverage, shows your customary design talent!

        Comment


        • #5
          Originally posted by Dale M. View Post
          Well done sir!

          Dale
          Thanks,
          -Don

          Originally posted by Northweldor View Post
          Nice job, and the use of the 1" stock fitted around the shaft corrects the two main faults of most pin wrenches I have used! (flex in the jaw, and nothing to keep it centered. As well, use of the threaded connection, allowing choice of leverage, shows your customary design talent!
          Thanks for your comments.
          I have a ton of 1 x 4 x 5 inch stock that I use for various projects.
          10. Scrap 1 x 4 x 5 Stock
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          I can also extend the stock if necessary.
          11. Extended stock
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          sigpic
          Miller Thunderbolt
          Smith Oxyacetylene Torch
          Miller Dynasty 200DX
          Lincoln SP-250 MIG Welder
          Lincoln LE 31 MP
          Clausing/Coldchester 15" Lathe
          16" DuAll Saw
          15" Drill Press
          7" x 9" Swivel Head Horizontal Band Saw
          20 Ton Arbor Press
          Bridgeport

          Comment


          • #6

            My friend John tried it out.
            Here is what he had to say:
            "Works great. Tried it on the cylinder in the picture and was able to spin the cap on the cylinder with just a little effort. Tool felt very strong like I would be able to really put a lot of force on it if needed."

            14. Spanner in use
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            15. Close up of Spanner
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            -Don
            sigpic
            Miller Thunderbolt
            Smith Oxyacetylene Torch
            Miller Dynasty 200DX
            Lincoln SP-250 MIG Welder
            Lincoln LE 31 MP
            Clausing/Coldchester 15" Lathe
            16" DuAll Saw
            15" Drill Press
            7" x 9" Swivel Head Horizontal Band Saw
            20 Ton Arbor Press
            Bridgeport

            Comment

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