Page 251 - CTS - Sewing Technology - TP - Volume - 2-0

SEWING TECHNOLOGY - CITS

Fig 1

Practice on operation of double needle lock stitch

machine
Objectives : At the end of this exercise you shall be able to
• identify the major parts of double needle lock stitch machine and their uses
• wind the lower thread (bobbin) and place bobbin case into lower assembly
• install the bobbin into rotary hook
• remove the bobbin on rotary hook latch
• thread the upper thread
• adjust the stitch length
• identify the corner sewing method
• back tack and adjust the tension of upper and lower thread
• practice stitches per length on different material.
Procedure

TASK 1: Identify the major parts of the double needle lock stitch and their uses. (Fig 1)

Fig 1

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CITS : Apparel - Sewing Technology - Exercise 36