The roller bar motor assembly includes a pin that goes through a gear and into the frame of the Cricut. Pull the assembly straight out to avoid bending this pin.

Grab the roller bar motor assembly and move it out of the way.

Try to avoid touching the white lithium grease behind the roller bar motor assembly.

During reassembly:

If the white grease on the pin came off during disassembly, apply a small amount of new grease to the pin before putting the motor assembly back in place.

Use paper towels and isopropyl alcohol to clean up any stray grease.

Make sure the pin in the motor assembly goes through the gear and into the hole in the frame.