I was given a radial arm saw. I has been sitting oudoors and I have spent the past couple of days trying to free it up and get it working.
The motor is fine, the raise lower mechnism didn't work but I managed to get that freed up and working ,, it had lost a circlip and the post needed to be free from the casting at the base. that part is fine now.
But On top of the machine, near the front of the head there is a lock lever and a big knob.. I am trying to remember from my highschool days how this works.
It looks like you would push the lever back to enguage the rod ( which runs into the casting to the top of the post. beside there the nut there is a metal pin that seems to prevent the nut from enguaging fully with the nut ??
I took out the rod, and there is a hex shaped hole with a flange at the end. there is a hex shaped "bolt head" down in there, and to one side of that there is a pin ( which seems to be there to prevent the rod from enguaging with the bolt head. the only way I can see in there is through the hole in the end of the casting where this knob and lever mounts. (top front of the saw)
I put the collar with the nut on my lathe and turned the metal collar down a tad, and now can insert the rod down there and turn the nut.
so the question is this..
If I push the knob in to enguage with this bolt, then turn the knob, should that turn the whole head , or is it just supposed to loosen the head from the top of the pipe so I can set the blade angle and lock it again. ?
I am trying to figure out what SHOULD move so I can try to get some oil between the casting and the pipe. my question sounds grey so I will rephrase it ..
does the casting at the top of the pipe rotate on the casting? is there a gear mehanism up inside the head?
is there a parts manual available online somewhere?
Thanks for your time, Phil