Craftsman 113.27520 table saw tilt lift nut bracket

Bchunn

New User
Ben
I picked up an old craftsman 113, the blade wouldn't raise or lower so I tore it down to see what was up and found the cast aluminum braket had broken. Upon further tear down and inspection it looks like the gear teeth on the braket that engage the teeth on the arbor assembly were seized causing the problem but looking at it further it appears the part never was meant to spin. I took the teeth off the arbor assembly and the height adjustment works, do a anyone know how the assembly is meant to work? It appears to me if the teeth are engaged the blade will never raise or lower since both sides are stationary?
 

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Michael Mathews

Michael
Corporate Member
Ben, I'd take the below mechanism apart. seeing that there are teeth that appear to surround the circumference of the wheel, my guess is it has to be able to turn. I would be surprised if it's froze up from sitting at some point and got broke when someone forced it to move.

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Gotcha6

Dennis
Corporate Member
I have to disagree. I think it has been disassembled sometime before you bought it and was not put back together in the proper mesh configuration. As the crank is turned, the shaft gets shorter or longer causing the two gears to mesh in a knee action. If it were reassembled with the gears of each side at their starting positions it would be able to move freely. It locked up because there were no more gears to mesh with.
 

Bchunn

New User
Ben
That was my thought with the teeth being all the way around and they all appear to have wear on them, the circular piece also appears to be separate in a way that was designed to rotate. I'll throw some PB blaster on and see if it will move. If not maybe put a gear puller on it?
 

Gotcha6

Dennis
Corporate Member
At this point I would remove the segmented gear and crank on the elevation hand wheel until the slotted portion of the assembly comes around more in line with the end of the mating gears. The gears may not all be able to mesh, but you should be able to discern a wear pattern that would tell you within a couple of teeth where they are supposed to be.
 

Bchunn

New User
Ben
Finally got everything figured out and fixed. The wheel with the teeth on it does need to spin in order to raise and lower the blade, it's a simple ring that fits around the braket and glides metal to metal. A quick cleaning and light sanding freed up the movement and some aluminum anti seize helped it glide smoothly. Some square tubing and a few washers fixed the broken part of the bracket and everything is back in working order. The only other addition was a small washer on the lower mounting bolt between the cast iron and tilt bracket so the wheel was not sandwiched and could spin freely.

Thanks everyone for the help.
 

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