3.10
Stitch Length Adjustment
Turn stitch length dial ‘1’ in the direction of the arrow, and align the desired number to marker dot ‘A’ 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.
Figure 15
3.11
Thread Tension Adjustment
Adjusting needle thread tension (Figure 16)
Adjust the tension of needle thread using tension adjusting nut ‘1’ according to different sewing condi- tions.
Turn the nut ‘1’ clockwise (in direction ‘A’), the tension will increase.
Turn the nut ‘1’ counterclockwise (in direction ‘B’), the tension will decrease.
Adjusting the bobbin thread tension (Figure 17)
Turn the tension adjusting screw ‘2’ clockwise (in direction ‘C’), the bobbin thread tension will increase.
Turn the screw ‘2’ counterclockwise (in direction ‘D’), the bobbin thread tension will decrease.
Figure 16 | Figure 17 |
High Speed Straight Lockstitch Sewing Machine Instruction Manual and Parts List 12