What's with the click of the flag machine of the jade woodcutter?

First of all, the rattling noise is generally caused by the excessive resistance of the cloth feeding motor. Try to reduce the resistance. If the iron bar feeding the ribbon is noisy, it depends on whether the bearings at both ends of the iron bar are broken or whether the white plastic card at the joint between the iron bar and the motor is not concentric. You can loosen the three screws on the white plastic to adjust it. I hope it helps you.