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John Deere 318 Mower Deck Bracket Repair

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  • John Deere 318 Mower Deck Bracket Repair

    This weeks project was to fix a previous repair of the arm of a mower deck from a John Deere 318 tractor. The function of the arms is to lift up the mower deck. The arm had been repaired by the previous owner, but wasn't done very well. The stick welds had a lot of flux inclusions and poor penetration. There were two stiffener plates welded to both sides of the original arm and there were four holes drilled in the arm for bolts. in picture 2 the top two pieces are part of the arm and the lower two pieces are the stiffener plates that were added. The arm was also welded to the shaft, which just added additional stress to the bracket without adding any value. I believe that for the original design the shaft just passed through clearance holes and was held in place by spring pins, which can be seen in picture 8. If you look at picture 3, which was part of the arm, you can see a jagged groove that looks to me like a torch cut. As a result of the Torch cut, the flux inclusions and the holes I decided to replace the entire end of the arm. I also had to build up the shaft where it was welded unnecessarily. Picture 9 shows the repaired arm and shaft back in place.

    Don
    Attached Files
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Colchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

  • #2
    And here are the rest of the pictures:
    Attached Files
    Miller Thunderbolt
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Lincoln LE 31 MP
    Lincoln 210 MP
    Clausing/Colchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport

    Comment


    • #3
      Nice work. Thanks for sharing the step by step.
      Miller Challenger 172
      Hobart AC/DC Stickmate
      Older Sears AC Stick machine

      Comment


      • #4
        It occurred to me that the previous sub optimal repair probably doubled the amount of work. Do you see this as well?

        Don
        Miller Thunderbolt
        Smith Oxyacetylene Torch
        Miller Dynasty 200DX
        Lincoln SP-250 MIG Welder
        Lincoln LE 31 MP
        Lincoln 210 MP
        Clausing/Colchester 15" Lathe
        16" DuAll Saw
        15" Drill Press
        7" x 9" Swivel Head Horizontal Band Saw
        20 Ton Arbor Press
        Bridgeport

        Comment


        • #5
          Yup - I've dealt with 'way too many people where my most polite response was "Please don't help me"... ... Steve

          Comment

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