I recently noticed my saw making a clattering sound. It must have been going on for some time but being engrossed with what I was doing it didn't register. Once I became aware of it though it seemed to get louder and louder. Kind of like when a mosquito buzzes your ear.
I tried to localize where the noise was coming from and couldn't. Oiled the parts the manual says to do. No help. checked the front blade clamps, nothing.
Finally took the screws out of the rear link to the top and bottom arms. Bingo!
Both screws and the link were badly worn, the link holes are egg shaped, and the shoulder area of the screws are flattened. Probably near a 1/16" + or - of play.
Ordered the parts from eReplacementParts.com
I've had good personalized service from these people in the past, so I'll keep using them as long as the service stands up. My only complaint is they seldom have the parts in stock so their is a waiting period. Their diagrams come right from the manual and it is easy to find the part you need after zooming in on the page. Clicking on the number opens a pop up with a photo of the part and the price, with a link to put in your shopping cart.
They have an 800 number if you would rather not shop on line.
My thanks to Blair Kunze for the personalized service!
Gabby likes them!