I just got a used Delta Unisaw. The newer version with cranks on the front. 2012 mfr I think.
5hp single phase and prior owner put a big Powertech magnetic switch on it (just saying in case its the reason for the jolt)
When I start it up with a blade installed it makes a loud jolting sound for a fraction of second then a nice smooth whir.
I dont know what this saw should sound like but the jolt sound doesn’t sound right to me. Here is a video... hope it works….
https://photos.app.goo.gl/b7wePa5ohk1hNWmq5

Without a blade installed, at start up no jolting sound and just nice smooth whir.
I adjusted the belts per manual and when watching them with a blade in at start up, they expand out coincident with the jolt.
Without a blade the belts just hug the pullys, no expansion or flyout.
Do you think its just the belts need replacing or do I did I get a bummer used saw?
If its the belts would the link belts be better to use then the stock Delta part?

Any experience here?
Appreciate any help
Thanks!