Stop motion screw

Fly wheel

Bobbin winder

Presser foot

Needle

Thread guide

Needle plate

Face plate

Use only sewing machine oil

Check the pressure foot and its presser

Thread tammed in shuttle race

Gummed oil or dirt on bearings

Move the clutch

Feed the thread to needle

The cloth firmly in position

Controls the length of the stitch

Winding to thread

Thread to forms

Rotate to fly wheel

Controls to stitch length