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PREFACE
Thank you for your purchase of this machine.
Please refer to this booklet for proper use and optimum service of this machine.
CONTENTS
1. Setting up the machine ...................................................................... |
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1-1 Correct installation of the motor ................................................ |
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1- 2Connecting the controller to the motor ...................................... |
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2. Overedging .......................................................................................... |
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2- 1How to thread correctly .............................................................. |
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2-2 Preparation and checking prior to sewing .................................. |
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3Sewing ........................................................................................ |
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Double chain stitching (straight seaming) ......................................... |
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3- 1 Changing from overedging to double chain stitching ................ |
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3-2 How to thread correctly .............................................................. |
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3 Sewing ....................................................................................... |
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Interlocking (Safety stitching) ............................................................ |
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4- |
1 Changing from double chain stitching to interlocking ................ |
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4-2 How to thread correctly ............................................................ |
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3Sewing ...................................................................................... |
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5. Thread tension adjustment ............................................................... |
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5- 1How to adjust the overedging seams ...................................... |
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5-2 How to adjust the double chain stitching seams ..................... |
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6. |
Presser foot adjustment .................................................................... |
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7. |
Adjusting stitch length ........................................................................ |
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8. Sewing speed ................................................................................... |
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9. |
How to install the needle.................................................................... |
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10. |
Replacing the cutting knives ......................................................... |
15 |
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11. |
Lubrication ......................................................................................... |
18 |
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12. Checking and adjustment .................................................................. |
18 |
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13. Applicational notes ............................................................................ |
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13-1 How to set the presser foot for sewing knitted material |
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(used only for double chain stitching) ..................................... |
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13-2 Double-hinged presser foot ..................................................... |
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13-3 Removing stitches of double chain stitching seams ............... |
18 |
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14. |
Supplement ....................................................................................... |
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15. |
Changing the carbon brushes ofthe motor ....................................... |
20 |
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16. |
Specifications ................................................................................... |
21 |
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17. |
Table showing relationship between thread and cloth ..................... |
22 |
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SETTING UP THE MACHINE
It is important that this sewing machine be set up in the correct manner before use,
1-1 Correct installation of the motor
• Loosen the two belt cover screws and detach the belt cover.
• The bracket set screw {Figure 2), bracket set washer (Figure 2) and the belt are packed in this set and attached to the machine body by fastening the set screw while setting the belt as shown in Figure 3.
Belt tension is considered adequate, if it bends slightly when pressed by finger as shown in Figure 4, When the belt tension is not adequate, further adjust the tension by moving the belt tension adjusting nut (Figure 4) to the right or left.
• Replace the belt cover.
Figure 5
1-2 Connecting the controller to the motor
Connect the controller socket as shown in Figure 5.
Next, insert the plug into the power source. This machine runs faster when the controller pedal is depressed with strong force, and the speed decreases when the controller pedal is lightly depressed.
*For safety, remove the power supply plug after use.
Be sure not to place anything on the controller.
2 OVEREDGING
2-1 How to thread correctly
(1)Spool setting
Large thread cones (Figure 6) are generally used for this machine, how
ever, it is possible to use small thread spools (Figure 6) as well. In this case, it is required that the thread spool be set in such a way that the winding stop groove in on the bottom.
(2) Lower thread (looper thread) insertion
First, open the front cover as shown in Figure 8.
Then, the thread should be inserted in the order as shown in Figure 9. After inserting the thread, close the front cover.
*Threading for overedging is diagramed in red inside the side cover.
First pull the knob to the right and then push downward.
8 Correct threading at looper section.
Figure 11
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(3) How to thread the upper thread correct |
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ly (needle thread) |
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Figure 12 |
The |
thread should be inserted in the |
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order shown in Figure 1 2. |
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After |
inserting the thread from the |
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front to rear through the needle eye |
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while facing the machine, the end of the |
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thread should be pulled out about 10 |
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cm. |
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* Tweezers are helpful for threading |
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needle eyes. |
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Note: |
For overedging, the left-hand |
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needle should be removed (see |
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page 14) |
2-2 Preparation and checking prior to sewing
At the time of shipment, this machine is set for interlocking. However, please recheck the machine again in the order given below.
(1)Is the tip of the blade on the upper knife facing in a downward direction? (The knife should be in the position to cut the cloth.) (Figure 14)
(2)Is the crank lever in the slot? (Figure 15)
(3)If the crank lever is not in the slot, rotate the machine pulley by hand placing the needle in the lowest posi tion, At this point, the crank lever may be set into the slot by pushing down ward, thus allowing the looper for overedging to operate.
2-3 Sewing
(1) After the completion of threading, hold the ends of both the upper and lower threads with the fingers of the left hand creating a minor tension as shown in Figure 16 and turn the machine pulley with the right hand in the clockwise direction.
Confirm that both threads are inter twining. Then, set the cloth, and begin to sew. (Figure 17)
(2) If the tension balance of the upper and
Figure 17
lower threads is not satisfactory, it is possible that puckering will appear on the cloth or that the seams will become irregular.
Refer to the section "Thread tension adjustment". (Page 11)
Figure 18
(3) After the seam is completed, continue sewing about 3—5 cm at the end of the cloth and cut the threads as shown in Figure 18.
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