Headed bed scraping on backplate

[rbc1225 0]

I purchased an original Ultimaker with dual extruders and an upgraded heat bed. I see a scrape mark on the inside back of the Ultimaker and it also makes some strange clicking sounds as the bed goes up and down the Z-axis. I looked at the installation pdf and on the back of the heat bed there is a metal tab with a hole in it and I believe this is scraping on the back of the Ultimaker making a scrape mark as well as the clicking sound. Or so I am assuming this is what is causing it. I can't see anything else.

Anyway my question or observation is, I would not think this tab should be scraping the back, should it? I assume I can just maybe sand a channel out for this to clear?

Thanks

RBC

[rbc1225 0]

Sorry if my description above was a little confusing. Here is what I have.