Kinked tenon saw
Welcome! / Forums / General Woodworking Discussions / Tools and Tool Maintenance/Restoration / Kinked tenon saw
- This topic has 10 replies, 4 voices, and was last updated 7 years, 1 month ago by Mic van Reijen.
-
AuthorPosts
-
27 February 2017 at 11:21 am #309575
I agree with Darren, Paul’s method works a treat. I have cleaned about half a dozen now and my method is to dismantle the saw completely. That is, remove the handle and the ‘back’ by holding the saw blade firmly in a vice and tapping the back off using a piece of wood to prevent the hammer denting the back (especially brass). Then I clean the blade and put some light machine oil (or similar) into the gap in the back and tap it back on. Clean up the handle if it needs it and re-attach and finish tapping the ‘back’ onto the saw blade. You need to do it in that order otherwise the handle may not fit back into position (or you may damage the handle). When it is all back together you’ll find the blade to be warped all over the place – this is OK. Hold the saw by the handle and ‘smack’ the back onto a flat bench until the blade is straight. Paul has a video on YouTube on how to do that and it has worked for me every time. Good luck.
27 February 2017 at 9:43 pm #309603Actually doesn’t look too bad. To free the blade from the spline hold the blade really tightly in a vice (if a metal jaw vice use some padding to prevent damage to the blade) with the spline at the bottom and, using a piece of hardwood and a hammer, tap the spline down and off. Sometimes I’ve had to spray some penetrating oil (WD-40, etc) onto the blade so it seeps into the joint between the blade and the spline – if the blade is slightly rusted it defoliates (expands) and makes the blade really stick. You may also have to give it a good belt to get it off.
Once it’s off you can clean the blade and clear out the gap in the spline as much as possible and then re-assemble and use Paul’s trick to straighten. The blade is spring steel so unless it is really kinked it should straighten up nicely.
28 February 2017 at 9:48 am #309607OK, once everything is cleaned and ready to go, put the saw blade in the vice with the spline part to the top. Tighten the vice near the top of the blade (really tight) so there is enough room to hammer the spline back on. If needed you could clamp the entire length of the blade using a couple of pieces of wood to prevent any accidental kinking – I’ve never found this necessary though.
With the blade nice and firm start hammering the spline on from the opposite end to the handle – so, you are not hammering the spline down onto the blade but hammering the spline on from the far end toward the handle. It takes a while and you may need to use a piece of wood between the hammer and the spline (especially brass). Also handy to use some lubricant – like light machine oil.
Once the spline is getting close to the handle end you have to make sure to put the handle on – this is to make sure the spline doesn’t get hammered into place and interferes with the position of the handle. With the handle in place finish by carefully hammering the spline the rest of the way till it is nice and snug.
Then do the Paul Sellar’s smack to the bench to straighten.
Hope this helps.
10 March 2017 at 11:52 am #310013@bow,
In this video Paul does something similar with a smaller saw. Process should be the same.
Let us know how you fare.
Mic
-
AuthorPosts
- You must be logged in to reply to this topic.