Originally Posted by Craftnut

I have a Brother computerized machine and I have only had it serviced one time in probably 20 years. You have to be careful with computerized machines because the boards can be easily damaged. As ckcowl said, follow the instructions in your user manual. If your machine is still under warranty you can void it by opening it up. If it is older and out of warranty, and if you can carefully take off the outer cover, cleaning out the gunk and putting a drop of oil on the gears will keep it in good running order.