It is important to clean and grease plough discs after use to

It is important to clean and grease plough discs after use to prevent rusting. Plough discs are made of metal and are exposed to moisture, which can cause them to rust over time. Rusting can weaken the discs and make them less effective at cutting through the soil, which can reduce the quality of the ploughing. Cleaning the discs and applying grease after use helps to protect them from moisture and prevent rusting, ensuring that they last longer and perform better in the future. Sharpening the discs or reducing friction are not the main reasons for cleaning and greasing plough discs after use.