First time poster, but I've been a lurker for sometime.
I recently purchased a used RBI 220VS Hawk through craigslist. The seller indicated the saw was the most recent model when RBI stopped making them (he thought 2008/2009). Anyway, I may have been too trusting when purchasing the saw. The seller claimed the saw worked perfectly bu the hasn't used it in years. The seller turned on the saw to show me that it worked and helped me load it into my car.
Here is where my troubles come in. I got the saw home and set it up in my small hobby shop. I turned the saw on (speed set to low like at the sellers) and it worked perfectly. However, as I turned the speed up to 1/2 the saw started vibrating and shaking. The vibration chatter/noises are coming from the counterweight/flywheel area. In addition to the noise, the saw vibrates so much that the blade starts going left/right in addition to up/down. While the saw was on, I carefully added a little pressure to the pitman arm and the noise/vibration stopped. Is it somewhat common for the 220VS to have issues with the counterweight/pitman arm? Do you have any suggestions on how I can repair this without sending it in? I stretched my budget buying this saw and I can not afford to send it in for repairs. It is worth mentioning, the counterweight was missing its set-screw. Luckily, I had one and was able to replace it. In addition to the missing setscrew, the bolt holding the pitman arm to the counterweight is on extremely tight. Is it possible it is too tight and preventing it from moving freely?
Thank you for any help you can provide. I'm stressing pretty hard right now; this was not a cheap "upgrade" for me.
Thank you, Dan