NEQ6 Pro squeaky noise

[tala]

Hi all, 

 

Recently my NEQ6 Pro mount started to make squeaky noises when trying to balance it (no noises when slewing or guiding) 

The Rowan belt mod kit was installed about two years ago and it tracks "Ok" (.5" on a good night with, .8-9" on a bad night)

 

I've uploaded to my drive what I mean (too large for the forum upload) - https://drive.google...rRbBvGVv7II-gXQ

Try to ignore the shouting kid in the background 😁

 

Before I start tearing it apart, any idea what can be the issue ? 

My plan is to order all the necessary bearings and grease and replace them, but obviously I want to avoid it... 

 

Thanks !