how to remove the old blade from a used circular saw?

[Oscar_Lives]

huh huh huh... You said "c*ck"!... huh huh huh....

[Stormin Mormon]

It's been my experience that you turn the nut in the same direction the teeth point (loosening, that is).

[Vegsteve]

Re: try and unbolt that bolt and the whole blade just keeps spining.

I just had this problem with my Skil Saw. The problem ended up being that I had a blade that was too thick in it. This caused the washer to spin because it could not engage the square nut that just protrudes past the blade. The solution was to use a chisel to pry the washer a bit and keep it from spinning. Bolt came off easily after. btw: I find that using a large vicegrip works well to hold the blade from turning.

[gfretwell]

Are you saying you stop the blade but the arbor keeps spinning?

There is usually a pair of flat spots on the arbor on the back of the blade that a skinny wrench engages. Then you spin off the nut.

You do need that skinny wrench tho.

[clare]

An impact will do it pretty well every time if you get a "spinner"

[Unquestionably Confused]

7¼" CIRCULAR saw. He's talking about a 'D' washer (I believe is the correct nomenclature) and an arbor BOLT.

Believe that you're thinking of a table saw. Maybe I lead a sheltered life but I've never seen a second wrench for a circular saw. Owned B&D, Monkey Wards, Craftsman and Crapsman, Skil and Milwaukee. Some circular saws have a locking pin that locks the arbor. I usually just let the teeth grab onto a piece of scrap 2 by and there's no problem.

>

[gfretwell]

Yup you are right.

Clare has the right idea. Use an impact wrench. If you don't have one, take it to an auto mechanic or someone who does.

[clare]

Just remeber if it is a left hand saw (opposite normal - blade on the left instead of the right) the bolt will be a "lefty"

[Vic Smith]

An impact wrench to remove a circ saw arbor bolt? Please. I expect the OP jacks his car up before he breaks the lugs too. Just lock the blade. I've done it hundreds of times, using different methods. A locking arbor, screwdriver though a hole in the blade, screwdriver between teeth, visegrips, even between scraps of wood in a vise. Etc, etc.

[gfretwell]

If the bolt is bound up in the shaft, the blade can be stopped and the shaft may still turn after the bolt backs out a little.

[Vic Smith]

Yeah, that can happen. But the OP said the blade was spinning. He just didn't know how to stop it from turning.

[Stormin Mormon]

Vise grips do a nice job. Or C-clamp. Toe of your boot (make sure saw is unplugged).

[clare]

Read the original post.The blade was turning on the arbor because the blade was too thick and the "d" washer didn't catch. No way to lock the arbor, so impact is the tool of choice.

[clare]

I read it to mean the blade was spinning on the (arbor) shaft.

[watchdog]

Just use a cutting torch to cut off the bolt. Then toss the saw and the blade in the garbage and go buy a new one.

[Stormin Mormon]

Seeing things? I sure didn't read that.