I was printing supervisor of a small inplant shop for over twenty years. During that time I had three deaf employees who were press operators. Early in that period I taught one man, who was an experience printer, how to run a complicated automated offset press. At that time I knew finger spelling only, so it was slow going. Later on we developed our own signs for certain press functions plus I became more efficient in ASL.
Only one of the three was a lip reader.