2. Inspect the baler. Make sure that it is in good condition and that all of the parts are in place. Ensure the baler is set up for the correct type of twine and that the knotter head is clean and clear of any debris.
3. Open the tailgate and remove the old core.
4. Place a new core on the mandrel. Make sure that the core is wound tightly and that the knot is secure.
5. Close the tailgate and turn on the PTO.
6. Start the baler and adjust the tension. The tension should be tight enough to hold the core in place, but not so tight that it causes the twine to break.
7. Feed the hay into the baler. The hay should be fed evenly into the baler, and it should not be too wet or too dry.
8. Watch the baler. Make sure that the hay is being baled properly, and that the twine is not breaking.
9. Stop the baler and turn off the PTO. Once the bale is finished, stop the baler and turn off the PTO.
10. Remove the bale and start a new one.