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Western Snow Plow Stub Shaft Repair

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  • Western Snow Plow Stub Shaft Repair

    My customer just purchased a used Western snow plow. The pump worked fine, the blade had a lot of life left and the hoses were new last year. The only problem was that the stub shafts that attach the upper plow bracket to the truck frame bracket were cut off for some reason.
    The location for stub shaft that needed to be repaired can be seen in the following exploded view.

    Click image for larger version

Name:	0. Exploded view showing stub shaft.jpg
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    The 1st stub shaft was so short that it even lost the cross hole for the cotter pin, so there was no way to keep the truck frame bracket link from falling off the stub shaft of the upper plow bracket.

    To get the plow to my house, my customer had to ratchet strap around the truck frame bracket link to hold it onto the stub shaft. As you can see in the following picture the stub shaft is just barely flush with the truck frame bracket link.

    Click image for larger version

Name:	1. Strap holding upper plow bracket to 1st stub shaft.jpg
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    in the second picture truck frame bracket link was removed so that you can see the end of the first stub shaft, which was so short that there was no longer a hole for the cotter pin.

    Click image for larger version

Name:	2. Truck frame bracket link removed from 1st stub shaft.jpg
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    On the 2nd stub shaft there was only a little bit of shaft beyond the hole to support the cotter pin. My customer wanted this shaft also built up because he was worried that the cotter pin might pull out through this thin wall on the end of the stub shaft. This picture shows the truck frame bracket link on the 2nd stub shaft.

    Click image for larger version

Name:	3. Pin close to end of 2nd stub shaft with truck frame bracket link in place.jpg
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    The next picture shows the truck frame bracket link removed.

    Click image for larger version

Name:	4. Link on 2nd stub shaft removed.jpg
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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
    The next picture shows grinding the stub shaft to clean it up in preparation for welding.

    Click image for larger version

Name:	5. Grinding stub shaft.jpg
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    The following picture shows wire brushing the stub shaft to remove the rust.

    Click image for larger version

Name:	6. Wire wheel brushing stub shaft.jpg
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    I built up the ends of both of the stub shafts with weld.

    Click image for larger version

Name:	7. Welded extension on the stub shaft.jpg
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    I dressed the weld in preparation for drilling.

    Click image for larger version

Name:	8. Shaft ready for drilling.jpg
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    Then I drilled a new hole for the cotter pin.
    The following picture shows the cotter pin in place in the new hole of the newly built up shaft.

    Click image for larger version

Name:	9. Cotter pin in place.jpg
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ID:	702693
    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
      The last step was mounting the plow back on the truck.
      The large cotter pin on the right attaches the lower plow frame to the truck frame bracket. The cotter pin to the left goes in the stub shaft, which is the one that we repaired. This cotter pin keeps truck frame bracket link from falling off the stub shaft on the upper plow bracket.

      Click image for larger version

Name:	10. Pin in place under bumper.jpg
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ID:	702695
      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


      • #4
        Umm... In tractor parlance those are "lynch pins"....

        In my world these are cotter pins....



        These are lynch pins...



        But it does not matter, you did well on making very good save/repair...

        Dale
        Last edited by Dale M.; 11-28-2018, 09:54 PM.
        "Fear The Government That Wants To Take Your Guns" - Thomas Jefferson..

        Comment


        • #5
          Originally posted by Dale M. View Post
          Umm... In tractor parlance those are "lynch pins"....

          In my world these are cotter pins....



          These are lynch pins...



          But it does not matter, you did well on making very good save/repair...

          Dale
          If I ever knew the definition of Lynch pins I had forgotten it
          I did look up the definition of Lynch pins and Cotter pins and you are correct.
          Thanks, I learn something every day.

          -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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