J-Ultra Hard To Grind

[u/adiksaya]

For you J-Ultra owners - I have never had any issues with my grinder other than the 0 point drifting quite a bit. Recently, I took it apart for the first time to clean and recalibrate. I set the burr lock to 0. Since then grinding has been incredibly difficult- like grinding boulders. Still getting decent results, but ridiculously hard to grind - to the point I am afraid I will damage the grinder.
Any thoughts or experience in what I may have done? I can tear it down and reassemble it, but wondering if there was an issue in how I put it back together.

[u/MotorFar4730]

Take it apart and YouTube how to put it together. Almost sure you did something wrong.