Regulating The Thread Tensions - Consew 226R Operating Instructions Manual

9
REGULATING THE THREAD TENSIONS
For ordinary stitching, the tension of the upper and the lower threads should be
equal so as to lock both threads in the center of the material.
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Perfect stitching
If the tension on either thread is stronger than on the other, imperfect stitch-
ing will be the result. If the tension on the upper thread is greater than that on
the lower thread, it will lie straight along the upper surface of the material.
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Tight tension of needle thread
If the tension on the lower thread is greater than that on the upper thread, the
lower thread will lie straight along the underside of the material.
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loose tension of needle thread
1. Tension of the Upper (Needle)thread:
Before adjusting the tension of the upper (needle) thread, be certain that the
presser foot is let down and not in lifted position.
To adjust tension, turn serrated nut (A, Fig. 10) on tension device to the right
to increase tension and to the left if you desire to decrease it.
2. Tension of the Lower (Bobbin) thread: (Fig. 9)
The lower (bobbin) thread tension is controlled by the larger screw "A"(Fig.
9) near the end of the spring at the outside of the bobbin case.
Turning this screw to the right (clockwise) will increase the thread tension,
while turning it to the left (counter-clockwise) w ill decrease it.
ADJUSTMENT OF THE PRESSURE ON THE MATERIAL (Fig. 3)
The pressure of the presser feet is adjusted by the screw (D, Fig. 3) with screw
driver.
To increase the pressure, turn the screw to the right and to left if you desire to
decrease
it.
STITCH LENGTH ADJUSTMENT & REVERSING LEVER (Fig.
12)
Stitch length can be set by turning the
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dial(2). Numeric figures on the dial
show the stitch length in mm. The
desired numeric figure on the dial
should be set at just above, while
depressing the reversing lever (I)
slightly.
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Fig. 1 2