1. if you do not use it for the first time or for a long time, remove the tool head before you use it.

2. Always remember to lubricate the blade with two drops of oil before and after use to prevent the blade from rusting and heating.

3. when cleaning, open the blade and clean the broken hair carefully with a clean brush.

4. When installing the knife head, the order must be remembered, until the bottom of the knife head into the groove and then push hard until you hear the "chirp" sound.