rally864

I've had the cutter for just over a year now and the last 2 projects i did I noticed the cutter was really loud. I have narrowed it down to the feed rollers that would be under the vinyl. Once the vinyl is in the cutter and you use the off line button to set your origin it is louder than when i first got it also when cutting. When you adjust it with out any vinyl in the machine it is noticeabley quieter. Any Ideas on what may be wrong or how to quiet this thing down. It also has a humming sound coming from it when its powered up and not cutting.