I would thoroughly inspect the saw to see if there is anything causing this to happen. If it started suddenly like you say something changed.
Possibly a foreign object or a build up of sawdust or other material on the wheels, damage to the blade perhaps.
Just picked up a nice Pre-1998 Tradesman 1750 today. I'ts in need of all four jaws Upper and lower (pipe). The guy wanted to just give it to me! but I made him take $20. Just ordered the replacement parts I needed for $83.
Best I can find looking these things up online I've got a little over a...