Thanks Brian.
I thought it was out of square, but after I removed the lid from the arm I found sawdust caked in the locking pins. I haven’t had to do any repairs in 50 years.
The blade takes a long time to stop. There is a brake, but it takes a good hand grip LOL
It has been a good saw & I have used it a lot.
I wish it was larger, I can cross cut 16" for material less than 3/4"
Most of the slider miter saws will cut about 14 1/2.
With the radial you can raise the blade for dado, slots & rabbits.

Jaybird