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Feed of the arm chain stitch sewing machine


The feed of the arm machine is actually a chain stitch machine and it works with sewing and stitching for chain designs. The feed of the arm machine contains a looper instead of the bobbin. A multi-thread chain stitch can be produced by Feed of the arm machine on garments. By Feed of the arm machine, the stitch can be produced on heavy fabric like denim or jeans. Infeed of the arm machine, there is an option to stitch by folding the fabrics. Due to the thickness of the fabric the needle size varies in this machine


Machine specification: 


                        Name Feed of the arm chain stitch sewing machine.
              Brand name: YAMAHA
                       Model: FY 928
                       Origin: China
                   Function: To join side seam



Machine Parts Name:


1) Thread stand: six  thread stand used to holds the thread package in this machine 
2) Three needle thread:
3) Three looper threads:
4) Needle thread pressure guide: the tension of the thread is maintained
5) Thread tension post: To maintain thread tension:
6) Needle thread take-up lever: It helps the thread to move easily.
7) Needle clamp: To hold the needle with a needle bar.
8) Presser foot:  uniform pressure is maintained by it
9) Feed dogs: it helps to move forward the fabric
10) Throat plate: the fabric moving forward with the help of this part.
11) Handwheel: To slowly raise the needle by hand.
12) Looper thread take-up lever:  it holds the looper thread and helps to move to pass easily


Other information:

     Motor Rpm =2850
            Voltage =220 V
             Power =450 Watt
                  HP = 3/4 HP


Fig: Thread path of feed of the arm chain stitch sewing machine.


Working procedure:

1) Firstly thread package is kept on the thread stand.
2)  pass the thread maintains the thread passing path.
3) We also maintain the thread tension with the help of a tension post.
4) Thread pass through into the needle and set up the machine properly.
5) then switch on the machine.

Precaution:

1) We should not press any elements or switch without the permission of the teacher or lab assistant.
2) We should maintain proper speed by pressing the foot pedal correctly.
3) We should keep a distance from our hand and finger from the needle during work with sewing machine operation.
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