help diagnosing a grinding noise

[weschow 0]

hey all,

 

I inherited an Ultimaker 2+ from a previous coworker, but this thing has been sitting in storage for a few years. I'm very new to 3d printing (I've only ever done it with machines maintained by other people), so I'm having some difficulty debugging what seems to be a mechanical issue. Here is a video:

 

https://www.dropbox.com/scl/fi/svyn82zewptfkq3hplklk/PXL_20230914_200521800.TS.mp4?rlkey=zb23bc9hnurv9cz716w6givar&dl=0

 

You'll see that the printing head gets kind of gummed up as it swings from left to right, and there's a very loud grinding sound. Any tips on how I should approach fixing this would be greatly appreciated.

 

Thanks,
Wes

[mrender 26]

The front belt looks very loose could be jumping the pulley.