Removing staked dowel pins

Discussion in 'The Club House' started by clr8ter, Jul 18, 2013.

  1. clr8ter

    clr8ter New Member

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    Just for the record, this is regarding a lathe, not a gun.....

    How do you remove a dowel pin that is staked on both sides? It is run off center, through a gear, so the gear is held on a shaft, but can freely turn. So, you have to hold the gear, and the teeth interfere somewhat with removal. I have moved it a little, to the point it's up against one of the stakes.
    Now I know it's not a taper pin, the rebuild book on this lathe says it's not. Is there a specific procedure for doing this? Or do you just have to use enough force to overcome the stake?
     
  2. duddie10

    duddie10 New Member

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    Can u post some pics. Im a machinest and if i can see what gear and how it is i might just be able to help.
     

  3. clr8ter

    clr8ter New Member

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    I will see what I can do. It'll be a tough spot to photograph clearly. A scan from the book might go better....in the meantime, you got any general info on staked dowel pins?
     
  4. duddie10

    duddie10 New Member

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    Im asuming the hole the pin is in is a thru hole. If so a punch and hammer. If not then maybe a drill to try and clear some of the stacking away. Its tuff with out being able to see it.
     
  5. clr8ter

    clr8ter New Member

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    I will try for a photo.....
     
  6. hiwall

    hiwall Well-Known Member

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    Most of the time this needs brute force(always my favorite).
     
  7. bigbomar4

    bigbomar4 New Member

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    Get a bigger hammer! Or maybe a pic. I'm just a dumb wrench turner but maybe I can help if I can see what you are talking about.
     
  8. clr8ter

    clr8ter New Member

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    OK, here's a photo. Sorry, it's about the best my camera can do. See the pin? It's in the gear second from the left, right next to the dogs that engage the gear on the right. In case anyone is interested, this is a single tumbler gearbox to a '43 South Bend 10L toolroom lathe.
     

    Attached Files:

  9. duddie10

    duddie10 New Member

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    Yes small looks to be some where around a 1/8 in dia. Left gear. Use a punch be careful not to mar the gear. The gear might be hardened or have work hardened over time so in an extream case i would use a dremel with a small cutting wheel just to weaken the stake and then use a punch from the other side. Again be carful take your time and remember when your putting it back together to restake the pin so it does not come flying out between gears.
     
    Last edited: Jul 19, 2013
  10. clr8ter

    clr8ter New Member

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    I went and bought some actual punches this afternoon. Will see what that does for me.
     
  11. duddie10

    duddie10 New Member

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    Good luck. Its a nice lathe. Have an older bench top south bend lathe at home with i had a bridgeport. Some day.
     
  12. willshoum

    willshoum New Member

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    Dowel pin...........

    If you can, grind down the bradded ends flush with the gear, then try the punch, if that doesn't work you'll have to drill it out. In most cases like this the pin is either sheered or bent. Only drill to the depth of the shaft first on both sides. then try the punch again. If that does't work drill thru the remaining part in the shaft. You can always over size the hole and make a new pin. Does your repair book show a roll pin??????
     
  13. clr8ter

    clr8ter New Member

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    No roll pin, solid.
     
  14. clr8ter

    clr8ter New Member

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    Well, I got it out. Turns out the majority of the issue was the gear not being held securely. I made a wooden block to jam the gear solid, and the pin came right out. The correct punch helped, too. Thanks for all the suggestions guys!
     
  15. duddie10

    duddie10 New Member

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    Np glad to help.