Help lowering feed dogs on a Brother LS 1217 sewing machine

[untonuggan]

Hello, fine sewing folks! I am interested in doing some free machine sewing/embroidery/quilting what have you. It seems fun! I am, however, at a loss for how to lower the feed dogs on my machine. All I know is that the manual troubleshooting guide says that if the fabric isn't moving, it's because the feed dogs are lowered...but it doesn't say how to do this on purpose. I was wondering if anyone had any advice on how to figure this out for a Brother LS-1217 machine (don't laugh, I've had it for a couple decades!) or at least where I might be able to find such information. Thanks so much!