My scroll saw will not hold onto a blade. Both set screws are tightened and the blade is tensioned, but after 20 seconds of moving it will let go of the blade.

SOURCE: Changing blade on Dremel scroll saw

I would suggest calling Dremel direct at 1-800-437-3635 and asking for tech help. You might also try their website at Dremel.com, but I have been there and you need to know the exact model number. Let me know and I will dig deeper.

efs_perpends

• 1997 Answers
• Posted on Mar 28, 2009

SOURCE: bevel locking lever won't tighten

It looks like that handle should be able to pull straight off the end of the shaft once you remove the screw. See this exploded parts view: http://www.makita.com/en-us/Assets/images/Products/_PartsBreakdowns/PB_2703.pdf

My experience with them is that people tend to get frustrated and abandon the lock lever and just run the saw "loose". Scary as it sounds, I've seen it on more than one site.

Anyway, I don't have a fix for you if you can't get the handle off to re-position it.
Makita does have a tech support line if you want to give it a try. Otherwise, you may have to shell out a few bucks to one of their service centers. We used to have a great one in Albuquerque, but it's now defunct. People don't seem to repair tools like they used to...
Locate Nearest Service Center online
or Free technical support center (1-800-4MAKITA)
Monday – Friday 7:00am – 7:00pm EST
Good luck, and best wishes...

SOURCE: blade wont stay in Bosch 1882VS jig saw

From your description I cannot say for certain, but it sounds as though you are not locking the blade correctly, or the blade lock mechanism is broken. You can tell if the blade-lock is working by clicking it. It should make an audible "click" that you can feel. Also, you can pull on the blade ( with the saw UN-plugged of course!) and feel if it is properly seated. If you are operating the blade-lock according to the instructions and it still doesn't lock positively, see a service center before you use the tool again. A broken blade-lock could be dangerous.

SOURCE: need manual for 20'' scroll saw model 113.236400 Craftsman

go to Managemyhome.com and type in your model number the manual is 26 pages long. If I have answered your request would you please rate my response accordingly. Thank you.

SOURCE: How to change the blade on a craftsman scroll saw?

You might be able to find the manual on the Sears site (this can be a frustrating search - but start with the model number). But even without the manual, this is pretty easy on most scroll saws. There is usually a plastic knob (about the size of a ketchup bottle lid) on top of the machine at the back. You loosen this knob a couple of turns (to the left) and the blade will become very loose. The blade is probably the "pin-end" type - it will have a little cylinder about a 1/4 inch long on each end of the blade. You can buy new blades at any home improvement or hardware store. Besides qualtiy, the main differences will be the length of the blade and the size of the teeth (expressed as TPI or Teeth Per Inch). You need more TPI for cutting harder and thinnner materials, less TPI for softer and thicker material. Put the new blade in like the old one was (teeth pointing down) and tighten the plastic knob. It's hard to be sure how tight is should be, since it doesn't suddenly tighten up. About a 1/4 turn past where is starts to get noticeably tighter is a reasonable place to start. If the blade pops off during use, it wasn't tight enough.