Have an old Black and Decker 7321 Skill Saw. Bought it used. Cant figure out how to change the blade. Help

If you don't have a manual, you can contact Dewalt, and they will get you one or help you. UNPLUG THE SAW!! , if your saw has a blade lock, engage it, if it doesn't hold the saw firmly on a scrap piece of wood. Then use the correct wrench and loosen the retaining nut. Take the nut off, remove the blade

I am bit confused, what's a kerf plate? What blade are you using? I use blades from saw blade.com .

It appears that you have adaptors for the blades that are the same thickness as the blades Place the adaptor in the centre and then put on the spindle and tighten up the plates onto the blade.

I had a heck of a time. The set screw was not anywhere I could acess it. Finally figured out that the motor had stopped in the 'up' position. Once I got it back down the set screw was right there.

Its on ebay http://www.ebay.com/itm/NEW-BLACK-DECKER-ZIP-SAW-11-PIECE-CUTTING-SET-74-691-/260888941452
only 15.00

what type of saw is it, need moor info

The JS200 jigsaw has a manual blade clamp so you will have to loosen the two screws on the front of the blade clamp. Insert your blade (teeth forward) and slightly tighten screws alternately so as to leave your blade straight. Once snug then you can tighten both screws completely. Any questions please post back.

push blade on wood the teeth will hold it

Here is a link to the instruction manual, and just under the place where it says Save These Instructions it tells you how to change the blade.
http://www.dewaltservicenet.com/documents/English/Instruction%20Manual/90520882,JS515.pdf
Fitting the saw blade (figure A)
- Hold the saw blade (9) as shown, with teeth facing forward.
- Push the lever (3) downwards.
- Insert the shank of the saw blade into the blade holder (10) as far as it will go.
- Release the lever.

There is a little lever where the base of the blade fits into the holder that you depress to release the blade...You can see a picture of it in the manual.

I hope this answers your question...if so, please take a aec to rate this post...thanks.

I drp a screwdriver through one of holes in the blade; that "locks the blade" when the screwdriver comes up against the sole plate. Works great for tightening as well.