~ “LAY-IN” THREADING
LOOPING UNDERNEATH THE FABRIC
The most common cause of a malfunction in stitch quality in the new
"lay-in" type of sewing machines is mis-threading.
The new machines that have recessed thread tension mechanisms are prone to
mis-threading by even the most experienced machine user.
The older machines that have tension assemblies that protrude from the front of
the machine are far superior at maintaining stitch quality than the newer
machines because the thread comes in contact with twice as much of the surface
of the tension discs in the assembly.
The manufacturers of new machines are "recessing" the assemblies, not
because it works better, but because it eliminates shipping claims from damaged
In other words, IT'S CHEAPER. Which is the reason why most features on
the newer machines are inferior to the older ones. (Pre 1970)
STEP ONE: RAISE THE PRESSER BAR LEVER
STEP TWO: FOLLOW THREADING INSTRUCTIONS PROVIDED BY THE MACHINE MANUFACTURER TAKING GREAT
CARE TO BE SURE THAT THE THREAD IS BETWEEN THE TENSION DISCS, BEHIND THE CHECK
SPRING, AND THROUGH THE THREAD TAKE-UP ARM.
STEP THREE: LOWER THE PRESSER BAR LEVER
STEP FOUR: PULL DOWN ON THE THREAD BEFORE YOU THREAD THE NEEDLE.
STEP FIVE: IF
THE THREADING WAS SUCCESSFUL, YOU WILL FEEL A FIRM RESISTANCE LIKE
IS ACTUALLY HOLDING
ON TO THE THREAD. IF IT PULLS FREELY WITHOUT RESISTANCE, THE THREAD DID
"SEAT" PROPERLY IN BETWEEN THE TENSION DISCS. UNTHREAD, REPEAT ALL
STEPS, MAKING SURE TO DO STEP ONE FIRST. (CHECK THAT THE THREAD TENSION
IS SET ON FOUR.)
STEP SIX: PLACE
A SAMPLE PIECE OF FABRIC IN THE "SEW POSITION" AND TEST THE