Stripped threads on tablesaw arbor bolt holes. Repair how?

Page 2 of 2  


A couple choices here: If the trunnion hangers will accept 3/8" bolts, you can drill out the 5/16 holes in the top and tap them for 3/8-16 or 3/8-24 threads, or possibly an appropriate metric size. Another, perhaps easier way, which will also make it easier to adjust the trunnions, is to drill right on through the stripped holes, out through the top of the table. Countersink or counter bore the holes on the top side so the bolt heads will be flush or slightly below the table top.
--
The best argument against democracy is a five-minute conversation
with the average voter. (Winston Churchill)
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

You're just going to have to retap the holes for a slightly larger bolt and perhaps drill out the arbor mounting holes as well to accept the larger bolt. Outside of replacing the entire top, that's really your only option. Luckily, it's not that hard to do and I'm sure you could find someone locally to do it for you if you wanted to go that way.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Ray Miller wrote:

Have a competent machine shop look at the problem and suggest the repair.
Done.
Probable fixes are to fill the hole with threaded rod and re-tap or to install helicoil inserts. Have a machine shop do them. Preferably one where most of the guys look to have showered recently. Neither will be cheap. Either will be cheaper than buying a new table top.
--
http://nmwoodworks.com/cube


Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Thanks to all responders. The holes were repaired with heli-coils for a cost of $25 which consider a deal. I feel comfortable with the folks at the shop and am glad to have found a new resource for this kind of work.
Ray Miller Corvallis, OR
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Site Timeline

Related Threads

    HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.