Singer 191D-30 - Stitch Length Adjustment; Thread Tension Adjustment

3.10
Stitch Length
Adjustment
3.11
Thread Tension
Adjustment
Turn stitch length dial '1' in the direc-
tion of the arrow, and align the de-
sired number to marker dot ~, on the
machine arm (Figure
15) .
The indication of the dial is in milli-
meters.
When you want to decrease the stitch
length, turn stitch length dial
'1' while
pressing feed reverse lever
'2' in the
direction
of the arrow.
Fi gure 15
Adjusting nee dl e thre ad tension
(Fi
gur e 16)
Adjust the tension of needle thread
using tension adjusting nut '1' ac-
cording to different sewing condi-
tions.
Turn the
nut '1' clockwise (in direc-
tion ~ '), the tension will increase.
Turn the
nut '1' counterclockwise
(in direction
'8 '), the tension will
decrease.
Fi gure 16
Adjusting the bobbin thre ad ten-
sion (Figure 17)
Turn the tension adjusting screw '2'
clockwise (in direction 'C'), the bob-
bin thread tension will increase.
Turn
the screw '2' counterclockwise
(in direction
'D '), the bobbin thread
tension will decrease.
Figure 17
High Speed Straight Lockstitch Sewing Machine ! Instruction Manual and Parts List 12
From the library of: Superior Sewing Machine & Supply LLC