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Sheared bolts on bore plate?

Discussion in 'Compact Track/Multi Terrain Loaders' started by Jeffrey Bandel, Jan 21, 2021.

  1. Nige

    Nige Senior Member

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    By the sounds of it, pretty much that's it.
    Just make sure that you securely block the machine chassis so that it can't possibly move while you are pulling & twisting on the track frame. Simply jacking up the machine frame and leaving it supported on the jacks is NOT acceptable in my book.
     
    92U 3406 likes this.
  2. 92U 3406

    92U 3406 Senior Member

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    Pretty much. I wouldn't slide it 100% off, just enough to see if those spacers are there and not missing/pounded out. It can be a pain sometimes to get those torsion axles to line back up.
     
  3. 92U 3406

    92U 3406 Senior Member

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    I'd leave to cab up and watch that you don't strain the speed sensor wires.
     
  4. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    OK. Roughly how far out should I pull the track frame away from the torsion axel? 3 or so inches?
     
  5. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    I got it out about 6 inches. Here is a picture of it. Not sure exactly what I'm looking for but I don't see a bushing. 20210126_160841.jpg
     
  6. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    Here is the front. I don't see a bushing here either. 20210126_160851.jpg
     
  7. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    On the inside there is a thick washer. 20210126_160918.jpg
     
  8. Nige

    Nige Senior Member

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    That’s the spacer.
    There should be one of those "washers" in both the front shaft and also the rear one.
     
    Last edited: Jan 26, 2021
  9. Nige

    Nige Senior Member

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    You can see the split on the bushing at about 9 o’clock on the photo.
    It looks like the split in the other bushing (your 1st photo) is at the bottom.
    The bushing has a very thin wall, as 92U3406 mentioned before.

    upload_2021-1-26_23-55-3.png

    I’ll leave him to comment on the condition of the bushings and the spacer and whether or not it is reccomended that you should replace them.
     
    Last edited: Jan 26, 2021
  10. Nige

    Nige Senior Member

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    Here's the specifications for the spacer.
    Inside diameter 63.5mm
    Outside diameter 88.9mm
    Thickness 9mm
    Looking back at that photo of yours and judging by the way it is hanging on the shaft I would say the inside diameter is worn and probably the thickness also.
     
  11. 92U 3406

    92U 3406 Senior Member

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    The bushings don't look terrible. I've seen much worse. If the grease groove is still visible all the way around and not getting faint I'd leave them alone. They aren't hard to replace if you wanted to do them.

    That spacer looks pretty rough. It shouldn't be that sloppy on the shaft. From what I remember, 1 side is flat and the other is beveled. Beveled edge faces inward, towards the torsion axle, flat face to the track frame. If its dished in where its supposed to be flat it needs to be replaced.
     
    Nige likes this.
  12. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    There is.
     
  13. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    Changing the inside spacers requires removing the whole track assembly. Is that a huge job? Seems I read it is very difficult to align those torsion axles back up.
     
  14. Nige

    Nige Senior Member

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    Considering that those spacers are what limits the sideways movement of the track frame on the torsion axles (and is likely what broke those bolts in the first place) I would say you're going to have to go in there and replace them.

    Have you measured them yet and compared what you have to the dimensions above.? I'll be honest, to me they look fcuked.
     
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  15. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    OD on the rear spacer is 88.8mm. ID is around 63.14 mm ( hard to measure the ID while it is on the shaft)
     
  16. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    Front are the same. I think they look sloppy because the back of the shaft has an increasing bevel that the spacer presses onto.
     
  17. Nige

    Nige Senior Member

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    Did you try to measure the thickness.?
     
  18. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    8.3mm rear, 7.65mm front
     
  19. Nige

    Nige Senior Member

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    10% undersize on one and 20% on the other. I’d replace both if it was mine. They are only $18 each.
    New bushings are $60 a shot.
     
  20. Jeffrey Bandel

    Jeffrey Bandel Well-Known Member

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    Cost isn't the factor. I'm leery of pulling the frame out and screwing something up trying to get it back in.