My new 8" carbide 60 tooth blade binds in 3/4" red oak on my radial arm saw. The saw is 3 3/4 HP and is in very good condition. The binding only occures when pulling through the cut not when pushing through. What is going wrong?
2007-05-11 03:27:35 · 6 answers · asked by Bob G 1 in Home & Garden ➔ Do It Yourself (DIY)
Will answer out of concern for health & well being of a fellow woodbutcher..
Talking a bout a real radial , not a sliding miter or chop saw?
As Bill said radial arm saws are nasty.
Have had a 10" for years & it still scares the crap out of me.
A 60 tooth blade is OK for crosscutting most wood.& is done so on the pull stroke as mentioned.
If one side of the cut is blackened ( or blade). you have a misaligned guide or ar applying side pressure to the head as you pull.
Also see if the blade rises or cocks as you pull through..sloppy bearings or the locks are not tightened enough....pulling too fast?
Easy way to check is to make a straight cit & flip one piece over & hold edges together & check for square.
Red oak has "stuff" in the little tubes you see if you look at a cut end ( intermedullary tubules ...hows that?) & will smoke even a new blade in no time.
If the saw is cutting true, just make a couple of passes Instead of one.
Also, might try a free-er cutting hollow ground blade or go to less teeth.
Watch your fingers bub.
2007-05-13 04:50:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋
On a radial arm saw, which is a very dangerous saw to you, you have to make sure that the blade in the normal position is exactly perpendicular to the fence. There should be some screws on the back to adjust that, and you square it with a carpenters square.
Mainly, I would say, you are not supposed to be cutting from back to front, but from front to back, or pushing it as you say.
Watch out if you are doing any in-cutting, that is cutting off a small sliver that is close to the fence. If your fence is not absolutely square with the blade, the saw with bind and the portion that you are cutting off will slide through there like a arrow and kill you. I have seen a piece in-cut that has flown 60 yards.
2007-05-11 16:11:48 · answer #2 · answered by Polyhistor 7 · 0⤊ 0⤋
Radial arm saws are used on the pulling stroke. The blade spins in such a way that it wants to climb over the wood. So you need to pull slowly when using a radial arm saw. Also you want to make sure your using a crosscut blade in your saw. A finer tooth with probably help you also since there will be more teeth cutting at once.
2007-05-11 11:12:54 · answer #3 · answered by rob89434 4 · 0⤊ 0⤋
Since it only binds when pulling, I would say you do not have a firm enough grip on the wood and it is causing the blade to bind because the wood is twisting while cutting.
2007-05-11 10:32:51 · answer #4 · answered by sensible_man 7 · 3⤊ 0⤋
Holding both pieces of wood? That's a bad practice.
2007-05-11 15:14:30 · answer #5 · answered by Mike G 3 · 0⤊ 0⤋
also may want to make sure the blade was installed correctly, not backwards. common sense I know, but it never hurts to check.
2007-05-11 11:34:00 · answer #6 · answered by psychoholiday1976 3 · 1⤊ 0⤋