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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 ...................................................................... 1 1-1 Correct installation of the motor ................................................ 1 1- 2 Connecting the controller to the motor ...................................... 2 2. Overedging ................................................................................
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.
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.
8 Correct threading at looper section. Figure 11 (3) How to thread the upper thread correct ly (needle thread) Figure 12 The thread should be inserted in the order shown in Figure 1 2. After inserting the thread from the front to rear through the needle eye while facing the machine, the end of the thread should be pulled out about 10 cm. * Tweezers are helpful for threading needle eyes.
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.
3 Figure 19 DOUBLE CHAIN STITCHING (STRAIGHT SEAMING) 3-1 Changing from overedging to double chain stitching It is required that all parts which are set for overedging be changed for double chain stitching in the order given below, [Changing steps] (1) Open the front cover and remove the knife cover and set the sewing margin gauge. Align the two round marks in the same direction (Figure 19).
3-2 How to thread correctly (1) Method for inserting upper thread It is required that the thread be inserted in the order shown in Figure 22. After inserting the thread from the front to the rear through the needle eye while facing the machine, the end of the thread should be pulled out for about 10 cm from the needle. ^Tweezers are helpful for threading needle eyes. Figure 22 Tension discs Pass thread between two tension discs.
(2) Method for inserting lower thread Open the front cover, then insert the thread in the order as shown in Figures 25 and 26. The end of the lower thread also should be pulled out about 10 cm. After inserting the thread, close the front cover. In this case, the thread that has been pulled out may be left as it is. There is no need to pull it out to the surface of the throat plate. * Threading for double chain stitching is diagramed in blue also inside the side cover.
4 INTERLOCKING ( SAFETY STITCHING ) 4-1 Changing from double chain stitching to interlocking Figure 29 All parts which are set for double chain stitching must be changed to interlocking in the order given below. [ Changing steps ] (1) Open the front cover and remove the sewing margin gauge and insert the knife cover. Align the two round red marks in the same direction (Figure 29 & 30).
4-2 How to thread correctly Overedging and double chain stitching can be done simultaneously by using all four threads as shown in Figure 33. *Concerning threading, refer to the section "How to thread correctly" for both overedging and double chain stitching. (Page 3 & 7). 4-3 Sewing The sewing of interlocking is the same as overedging and double chain stitching. Refer to the section "Sewing" of both overedging and double chain stitching.
5 THREAD TENSION ADJUSTMENT 5-1 How to adjust the overedging seams Thread tension adjustment will differ ac cording to the type of cloth, thickness, and thread being used. Adjust the tension using the upper and lower thread tension adjusters while watching the seams. (Figure 34) Thread tension may be increased by turning in a clockwise direction. (1) When the tension of the lower thread is too heavy (Figure 35), loosen the lower overedging thread tension adjuster.
Figure 38 5-2 How to adjust the double chain stitching seams Double chain stitch Upper thread tension adjuster Thread tension adjustment will differ ac cording to the type of cloth, thickness, and thread being used. Adjust the tension using the upper and lower thread tension adjusters while watching the seams. (Figure 38) Thread tension may be increased by turning in a clockwise direction. Double chain stitch Lower thread tension adjuster (A) When the tension of the upper thread is too light.
6 PRESSER FOOT ADJUSTMENT How to adjust the pressure. The presser foot pressure of this machine is adjusted for standard (medium) thickness. Adjust only in the case when very thin or very thick cloth is being sewn. Sew thin cloth with less pressure, and, thick cloth with more pressure. Less -A More Presser adjusting screw *Turn presser adjusting screw clockwise for more pressure and counterclockwise for less pressure.
3 SEWING SPEED The machine has a maximum speed of 1,500 SPM. The speed can be controlled by pedal depression on the controller. "^The electric motor used for this machine is a special motor designed for use only with this machine and should not be used for other purposes. 9 HOW TO INSTALL THE NEEDLE With regard to the needles for this sewing machine, SINGER needle Cat. No. 2053 90/14 can be used for both double chain stitching and overedging.
1 O REPLACING THE CUTTING KNIVES The knife should be changed only after removing the plug from the electric power source. (1) The upper knife may be changed after loosening the upper knife set screw and the lower knife may be changed after loosening the lower knife holder set screw and the lower knife set screw as shown in Figure 47. The position of the lower knife must be arranged in such a way that it can be set in the indentation for the knife in the throat plate as shown in Figure 48.
1 1 LUBRICATION Five/ten drops of oil for one oiling are necessary only in this portion. As special materials (oil impregnated metal) are used for parts of this machine actual additional lubrication is negligible. However, since oil wick is provided for the inner sections, oil should be provided no more than once or twice per month to those parts (6 Positions) marked in red which can be seen from the outside of the machine, in addition to those parts (5 Positions) shown in Figure 49.
1 3 APPLICATIONAL notes 13-1 How to set the presser foot for sewing knitted materials (used only for double chain stitching) Presser foot for sewing knitted material. This presser foot is very convenient for sewing cloth parts with many curves. (1) First, raise the presser bar lifter, then remove the presser set screw (Figure 51). (2) After changing the presser foot firmly tight en the set screw after confirming that the needle holes are in the proper position.
13-3 Removing stitches of double chain stitch ing seams When loosening seams, remove the threads in the reverse direction of sewing as shown in Figure 52.
1 4 SUPPLEMENT Detailed list of contents 1) 2) 3) 4) 5) 6) Machine Motor Controller set Vinyl cover Instruction booklet Accessory box (Contents) Screw driver Spanner (for motor bracket) Needles Upper knife Tweezers Cleaning brush Oil Heart-shaped driver (for adjusting stitch length) Sewing margin gauge Presser foot for knitted material Net It is recommended that the pocket on the side cover be used for storing the accessories at the time of using the machine as shown in Figure 53.
15 CHANGING THE OF THE MOTOR CARBON Two carbon brushes (in two positions) are used for the motor on this sewing machine. The carbon brushes should be changed according to the following method, as they will wear after long hours of use. A) Period for changing carbon brushes The carbon brushes should be changed when they have worn too short for contact (see carbon brush figure), B) First remove the motor. Remove the brush caps (see figure of motor), and replace the brushes.
1 0 SPECIFICATIONS ítem Overedging width Specification 4 m/m Distance between needles 3 m/m Stitch length {feed) 1 6 m/m Needle bar stroke 27 m/m Knife movement 6 m/m Presser foot lift 3.5 m/m Feed dog height 0.7 m/m Needles SINGER needle Cat. No.
17 TABLE SHOWING RELATIONSHIP BETWEEN THREAO ANO CLOTH No. Type of cloth 1 Thin cloth (organdy, thin tricot, taffeta, silk, crepe, suit lining) 2 3 4 Ordinary cloth (cotton, tricot, linen, satin, cloth in general) Use Type of thread Length of stitch Double chain stitching (straight seaming) Cotton #80 ~ #100 Silk #80-#100 2.0 m/m — 3.0 m/m Overedging Cotton #80 ~ #100 Silk #80-#100 3.0 m/m — 4.0 m/m Double chain stitching Cotton #60- #100 Silk #50-#100 2.0 m/m — 3.
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