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
Needle bar
Presser bar
Fly wheel
Presser foot lifter
Feed dog
Stitch regulator