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D8R Final drive gears and housing

Discussion in 'Dozers' started by Robert0769, Mar 6, 2019.

  1. Dave Neubert

    Dave Neubert Senior Member

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    Yes they would not give credit for a cracked case. I would want to see the bad carriers. I would think you could sleeve the spun hole. I can't beleive that they want to replace all those parts and not Warranty it. If that was the case I would go with aftermarket parts nd run it
     
  2. RayF

    RayF Senior Member

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    The pin bores are regularly rebuilt by metal spraying. I have been involved with a number of 10T and 777 units recently. There are service guidelines and size specs available.
     
  3. Nige

    Nige Senior Member

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    I was looking in Salvage Guidelines Ray. Maybe I should have been looking at Service Mags or Special Instructions....
     
  4. Robert0769

    Robert0769 Well-Known Member

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    Center has broken teeth and top is destroyed. Other 3 don't have physical damage but I don't know how worn the teeth are.
     

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  5. Robert0769

    Robert0769 Well-Known Member

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    .
     

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  6. Vetech63

    Vetech63 Senior Member

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    Ide risk the $1000.00 myself and put in 2 new gears and bearings in the one.
     
    mg2361 likes this.
  7. Nige

    Nige Senior Member

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    I would say that's been awfully hot based on the colour of the carrier..........I don't think I would trust any bearing in that assembly to go again after it had been to that temperature.
    Also the oil in the last photo looks kinda thick & discoloured, but that may just be because it's been so hot.

    I'll agree to disagree with my learned friend above and say that I wouldn't risk the other three undamaged planet gears in that reduction assembly however good they looked. When you're already in for 2 new carriers at $7k for the pair an extra $1k for the gears is neither here nor there.
     
    nicky 68a likes this.
  8. Robert0769

    Robert0769 Well-Known Member

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    Agreed thanks for your time
     
  9. Dave Neubert

    Dave Neubert Senior Member

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    Where is the crack on the outside carrier and I looked on machinery trader and they show a bunch of used planetarys
     
  10. Robert0769

    Robert0769 Well-Known Member

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    The crack was along one of the shank holes
     
  11. Dave Neubert

    Dave Neubert Senior Member

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    yea that is a bad place to have a crack a lot of stress there
     
  12. Robert0769

    Robert0769 Well-Known Member

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    Cat asked if they could keep the old parts. Funny, wonder why if they're no good and can't be repaired

    Dozer is running again yay
     
  13. Nige

    Nige Senior Member

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    Tell them to FRO (aka "that'll be be a no"), unless they are prepared to explain exactly why they want them and/or are prepared to pay for them......
     
    balls2go likes this.