Using this BIQU Panda Claw Extruder Gear Set is easy. First, make sure your 3D printer (Bambu X1, P1, or A1 Series) is turned off. Then, carefully remove the old gear set and install the new one in its place. When using, avoid over - tightening the screws as it may damage the gear. For maintenance, keep the gear clean. You can use a soft brush to remove any dust or debris from time to time. Also, store the gear set in a dry place when not in use to prevent rusting. If you notice any unusual noises or reduced performance, stop using it and check for any loose parts or damage.