Trouble Case (1)
From the previous page
Prosser foot pressure
Differential
feed
ratio·
Thread amount
g
I
Case(2)
The presser foot pressure
ts
not high enough, providing
poor ironing effect.
The differential feed rallo has been set for gathering.
The
looper
thread amount is not enough, causing
excessively tensed stitches.
Check and Corrective measures
Increase the presser foot pressure.
Set
it
for
stretching.
When
stretching
llght-welghl
materials,
be
careful not
lo
cause
lhe
presser
fool
lo
contact unevenly with the materials.
Bring
the
thread cam thread guide fully to lhe front to
increase the amount of looper thread.
Page
28,28
62
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