[Bob with the 66]

I received my grandfathers old table top table saw. It is in pretty good shape other than some rust.

Question: It came with a 7" dia. blade with a 5/8" arbor, since these blades are very hard to find, is it safe to use a 7 1/4" blade?

I test fit on and it looks like no issues with clearance to table top opening. The old 7" blade has max rpm 6000 on it. I do not know what the max rpm of the motor is, housing is pretty rusted.

My goal is to restore and use it.

Another question, what should be used on the iron table top to keep from rusting?

Thank you in advance, Bob

[sdbob]

I've never done what you are doing howevr I do have 'older' table saws. I would try and see what happens-I mean with clearances. The blade should have a max rpm on it. I have used wax on my table and sometimes nothing. Anything other than paint to keep air-moisture from causing rusting.I'm no expert but I do 'try' things since usually I have no one to ask.

[fiedlerh]

As long as it clears the opening, it shouldn't be a problem. Check clearance at maximum tilt and depth too.

[Mark-Star]

Like the prior reply states you should test the wider blade for clearances before cutting the saw ON . You can put the blade on the arbor , bolt it on, & hand spin it before turning it on with power. Like he said, check clearances at full height, full angle and lowest depth, all by hand spinning, slowly. Don't want to mess up your saw teeth if the blade hits part of the metal saw, especially if carbide tipped teeth. Also, turn off the power at the power box, or electrical box, always, when changing the blade. They have been known to start-up on their own sometimes when you manually spin the blade or arbor.

[Bob with the 66]

Thanks all for the input,

7 1/4" blade fits with no fit issues. I do need to check with the table tilted, good call.

I am currently disassembling the unit, media blasting all the casting with plans for new paint, new wiring, and all new bolts.

This gives me something to do while the 66 is in the body shop.