What sort of problems do you have with these machines ?
neutral
user
They're quite complex machines and they have a lot of different components . We need to check the metal casing regularly for any signs of corrosion . We also check the brushes once a fortnight to make sure they aren't worn down . It's important to make sure everything is properly aligned and we adjust it if necessary . There is a canvas belt at the end of the assembly line . If it gets wet , it might rot so we check that regularly too .
neutral
assistant