Instruction Manual
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Instruction Manual and Parts List High Speed Straight Lockstitch Sewing Machine 191D 20/20C 30 / 30C 70 / 70C ® Singer is a registered trademark of The Singer Company Limited or its affiliated companies. © 2009 Copyright The Singer Company Limited
Instruction Manual and Parts List High Speed Straight Lockstitch Sewing Machine 191D 20/20C 30 / 30C 70 / 70C ® Singer is a registered trademark of The Singer Company Limited or its affiliated companies. © 2009 Copyright The Singer Company Limited
Instruction Manual
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... caused by unauthorized changes in full running, a test must be made by qualified personnel. Singer will not be followed. High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 1 Safety Instructions 1.1 Important Safety Instructions Important When using the machine. In case of ingestion, seek medical help immediately. • Repair, fitting or maintenance should...
... caused by unauthorized changes in full running, a test must be made by qualified personnel. Singer will not be followed. High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 1 Safety Instructions 1.1 Important Safety Instructions Important When using the machine. In case of ingestion, seek medical help immediately. • Repair, fitting or maintenance should...
Instruction Manual
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... safety device is removed. • To avoid possible injuries keep fingers, head and clothes far from wheel, belt and motor when the machine is running . 1.2 Safe Operation • To avoid the risk of electric shock, do not open the motor wiring box and do... assembled inside the wiring box. • To avoid injuries do not run the machine without proper grounding. • To minimize the risk of the machine always turn the machine off before unplugging it. • Clean the machine periodically. High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 2
... safety device is removed. • To avoid possible injuries keep fingers, head and clothes far from wheel, belt and motor when the machine is running . 1.2 Safe Operation • To avoid the risk of electric shock, do not open the motor wiring box and do... assembled inside the wiring box. • To avoid injuries do not run the machine without proper grounding. • To minimize the risk of the machine always turn the machine off before unplugging it. • Clean the machine periodically. High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 2
Instruction Manual
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Product Description and Machine Specification 2.1 Product Description High Speed Straight Lockstitch Sewing Machine High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 3
Product Description and Machine Specification 2.1 Product Description High Speed Straight Lockstitch Sewing Machine High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 3
Instruction Manual
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... Lockstitch Sewing Machine | Instruction Manual and Parts List 4 Machine Speed vs. Machine Specification Singer Model Application Maximum Speed [spm] Stitch Length [mm] Height of Presser Foot by hand / by knee [mm] Needle Bar Stroke [mm] Hook Type Hook Origin Needle Cat. 2.2 Machine Specification Table 1 - Lubrication Lubrication Oil 191D-20 Light to medium 191D-20C Standard 5,000 5.0 5.5/13.0 30.7 1955...
... Lockstitch Sewing Machine | Instruction Manual and Parts List 4 Machine Speed vs. Machine Specification Singer Model Application Maximum Speed [spm] Stitch Length [mm] Height of Presser Foot by hand / by knee [mm] Needle Bar Stroke [mm] Hook Type Hook Origin Needle Cat. 2.2 Machine Specification Table 1 - Lubrication Lubrication Oil 191D-20 Light to medium 191D-20C Standard 5,000 5.0 5.5/13.0 30.7 1955...
Instruction Manual
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3.1 Table Cut-Out Drawing Setup and Adjustment Instructions + 1 181 - 0 115 22 130 2-R30 2-R22.5 50 2-R20 2-DEEP 17 2-80 2-R41-8R10 2-12.75 2-R20 4-R10 2-12.75 28 130 66 33 Ø8.5 339.7 2-DEEP 18 159 108 2-DEEP 23 28 DEEØP 1268 68.1 59 65 95 206 480 - 0 +1 1200 Ø18 DØE2E4P 1 4-R10 200 65 535 Figure 1 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 5
3.1 Table Cut-Out Drawing Setup and Adjustment Instructions + 1 181 - 0 115 22 130 2-R30 2-R22.5 50 2-R20 2-DEEP 17 2-80 2-R41-8R10 2-12.75 2-R20 4-R10 2-12.75 28 130 66 33 Ø8.5 339.7 2-DEEP 18 159 108 2-DEEP 23 28 DEEØP 1268 68.1 59 65 95 206 480 - 0 +1 1200 Ø18 DØE2E4P 1 4-R10 200 65 535 Figure 1 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 5
Instruction Manual
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... rest on the hinge side 'B' are fixed on the extended portion of the table by nail too. Figure 4 Figure 5 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 6 Two rubber seats '1' for supporting the head portion on the operator side 'A' are attached by using nail '2',...5). Then, the oil reservoir '4' is placed (Figures 2 and 3). 23.5mm 19.5mm Figure 2 Figure 3 Two hinges '1' fit into the hole in the machine bed, and the machine head fitted the table hinge's rubber '2', before the machine head is placed to the cushions '3' on the four corners of the...
... rest on the hinge side 'B' are fixed on the extended portion of the table by nail too. Figure 4 Figure 5 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 6 Two rubber seats '1' for supporting the head portion on the operator side 'A' are attached by using nail '2',...5). Then, the oil reservoir '4' is placed (Figures 2 and 3). 23.5mm 19.5mm Figure 2 Figure 3 Two hinges '1' fit into the hole in the machine bed, and the machine head fitted the table hinge's rubber '2', before the machine head is placed to the cushions '3' on the four corners of the...
Instruction Manual
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... for the screw '5' is about 25 kgf×cm. Fix bobbin winder '7' at holes 'C', 'D'. Figure 6 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 7 Insert support '1' in the threaded hole in the middle of the bobbin winder should be parallel to the plate ...belt slot on the support with screws '4', '5' and washers '6'. The tightening torque for the screw '4' is about 30 kgf×cm, and for screws (Figure 6). The left and right parts of the cover hole. Install the front belt cover '3' and get the hand...
... for the screw '5' is about 25 kgf×cm. Fix bobbin winder '7' at holes 'C', 'D'. Figure 6 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 7 Insert support '1' in the threaded hole in the middle of the bobbin winder should be parallel to the plate ...belt slot on the support with screws '4', '5' and washers '6'. The tightening torque for the screw '4' is about 30 kgf×cm, and for screws (Figure 6). The left and right parts of the cover hole. Install the front belt cover '3' and get the hand...
Instruction Manual
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...just opposite from the needle bar crank by turning the adjusting pin '1' in direction 'C'. Figure 8 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 8 Before turning the machine on, fill oil reservoir '1' with the specified oil. When the oil level lowers below 'MIN' mark 'B', refill the... oil reservoir with sewing machine oil up and needle bar crank '2' by turning the adjusting pin '1' in . Figure 7 3.5 Thread Take-up Lever Oil Supply ...
...just opposite from the needle bar crank by turning the adjusting pin '1' in direction 'C'. Figure 8 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 8 Before turning the machine on, fill oil reservoir '1' with the specified oil. When the oil level lowers below 'MIN' mark 'B', refill the... oil reservoir with sewing machine oil up and needle bar crank '2' by turning the adjusting pin '1' in . Figure 7 3.5 Thread Take-up Lever Oil Supply ...
Instruction Manual
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... of oil supplied. It can be idling for 3 minutes (Moderate intermittent operation). Otherwise the hook will generate heat or the sewing material will be contaminated. Figure 11 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 9 Adjust the screw until the mark on bed toward '+' in direction 'A', the oil amount will...
... of oil supplied. It can be idling for 3 minutes (Moderate intermittent operation). Otherwise the hook will generate heat or the sewing material will be contaminated. Figure 11 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 9 Adjust the screw until the mark on bed toward '+' in direction 'A', the oil amount will...
Instruction Manual
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... needle is facing exactly to the right in direction 'D'. Loosen screw '2' and hold needle '1' with its stroke (Figure 12). Figure 12 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 10 Tighten the screw '2'. The power supply should be cut off before attaching the needle. 3.7 Needle Attachment Caution Choose a proper...
... needle is facing exactly to the right in direction 'D'. Loosen screw '2' and hold needle '1' with its stroke (Figure 12). Figure 12 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 10 Tighten the screw '2'. The power supply should be cut off before attaching the needle. 3.7 Needle Attachment Caution Choose a proper...
Instruction Manual
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... with that the thread open end is directed to the left as observed from notch 'B' (Figure 13). Figure 14 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 11 When pulling the thread 'C', the bobbin should be at the highest point of the arrow. Leave thread... approximately 4 cm long in the order shown below. By doing so, the thread will pass un- Figure 13 3.9 Machine Threading When threading the machine head, the needle bar should rotate in direction 'C'. Pass the thread through thread slit 'A', and pulls it in the direction of ...
... with that the thread open end is directed to the left as observed from notch 'B' (Figure 13). Figure 14 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 11 When pulling the thread 'C', the bobbin should be at the highest point of the arrow. Leave thread... approximately 4 cm long in the order shown below. By doing so, the thread will pass un- Figure 13 3.9 Machine Threading When threading the machine head, the needle bar should rotate in direction 'C'. Pass the thread through thread slit 'A', and pulls it in the direction of ...
Instruction Manual
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... Adjusting needle thread tension (Figure 16) Adjust the tension of the arrow, and align the desired number to marker dot 'A' on the machine arm (Figure 15). Turn the screw '2' counterclockwise (in direction 'D'), the bobbin thread tension will decrease. Turn the nut '1' counterclockwise (... the arrow. Turn the nut '1' clockwise (in direction 'A'), the tension will increase. Figure 16 Figure 17 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 12 When you want to decrease the stitch length, turn stitch length dial '1' while pressing feed...
... Adjusting needle thread tension (Figure 16) Adjust the tension of the arrow, and align the desired number to marker dot 'A' on the machine arm (Figure 15). Turn the screw '2' counterclockwise (in direction 'D'), the bobbin thread tension will decrease. Turn the nut '1' counterclockwise (... the arrow. Turn the nut '1' clockwise (in direction 'A'), the tension will increase. Figure 16 Figure 17 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 12 When you want to decrease the stitch length, turn stitch length dial '1' while pressing feed...
Instruction Manual
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...-up spring will be decreased. Loosen setting screw '4' and turn the tension post '3'. Figure 18 Figure 19 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 13 Turn the tension post '3' clockwise (in direction 'B'), the pressure will be increased. Turn the... direction 'B'), the stroke of the thread take -up spring '1' has been properly adjusted before leaving the factory. • Only when sewing special clothes or using special thread is readjustment necessary. Turn the thread tension post '3' counter-clockwise (in direction 'A'), the stroke of...
...-up spring will be decreased. Loosen setting screw '4' and turn the tension post '3'. Figure 18 Figure 19 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 13 Turn the tension post '3' clockwise (in direction 'B'), the pressure will be increased. Turn the... direction 'B'), the stroke of the thread take -up spring '1' has been properly adjusted before leaving the factory. • Only when sewing special clothes or using special thread is readjustment necessary. Turn the thread tension post '3' counter-clockwise (in direction 'A'), the stroke of...
Instruction Manual
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... Lifter Adjustment Turn the presser foot lifter '1' in its original position when the lifter is 10 mm. Figure 22 Figure 23 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 14 You can adjust the presser foot lift up about 5.5 mm and stop. The presser foot will go up to...
... Lifter Adjustment Turn the presser foot lifter '1' in its original position when the lifter is 10 mm. Figure 22 Figure 23 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 14 You can adjust the presser foot lift up about 5.5 mm and stop. The presser foot will go up to...
Instruction Manual
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Turn the regulator '1' counter clockwise (in direction 'A'), the pressure of the presser foot will be decreased. For general sewing of the fabrics, the standard height of the presser spring regulator '1' will be increased (Figure 24). Tighten nut '2'. 3.15 Presser Foot Pressure Adjustment Loosen the nut '2', and turn the presser spring regulator '1' clockwise (in direction 'B'), the pressure of the presser foot will be around 33~36 mm (5 kg). ˜ 33 36mm Figure 24 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 15
Turn the regulator '1' counter clockwise (in direction 'A'), the pressure of the presser foot will be decreased. For general sewing of the fabrics, the standard height of the presser spring regulator '1' will be increased (Figure 24). Tighten nut '2'. 3.15 Presser Foot Pressure Adjustment Loosen the nut '2', and turn the presser spring regulator '1' clockwise (in direction 'B'), the pressure of the presser foot will be around 33~36 mm (5 kg). ˜ 33 36mm Figure 24 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 15
Instruction Manual
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...). 3.16 Feed Timing Adjustment Caution If the feed eccentric cam is moved too far, the needle will be broken. Figure 25 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 16 To advance the feed timing in order to increase stitch tightness, move the feed eccentric cam in the direction...
...). 3.16 Feed Timing Adjustment Caution If the feed eccentric cam is moved too far, the needle will be broken. Figure 25 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 16 To advance the feed timing in order to increase stitch tightness, move the feed eccentric cam in the direction...
Instruction Manual
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Securely tighten screw '2'. See description below height for height Figure 26 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 17 3.17 Feed Dog Height Adjustment Caution If the screw '2' is at its highest position, the teeth should be worn out. Loosen screw '2' of the throat plate 'B' as the below for each machine variety (Figure 26). Move the feed bar up or down to make a correct height. When the feed dog 'A' is tightening too much, the crank '1' will be above the top surface of crank '1'.
Securely tighten screw '2'. See description below height for height Figure 26 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 17 3.17 Feed Dog Height Adjustment Caution If the screw '2' is at its highest position, the teeth should be worn out. Loosen screw '2' of the throat plate 'B' as the below for each machine variety (Figure 26). Move the feed bar up or down to make a correct height. When the feed dog 'A' is tightening too much, the crank '1' will be above the top surface of crank '1'.
Instruction Manual
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... the lowest point, loosen the setscrew '1'. Adjusting the position of needle bar lower bushing '3', then securely tighten the setscrew '1'. Figure 27 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 18 When replacing the rotating hook, it will cause the skip stitch. After the above adjustments steps, the rotating hook...
... the lowest point, loosen the setscrew '1'. Adjusting the position of needle bar lower bushing '3', then securely tighten the setscrew '1'. Figure 27 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 18 When replacing the rotating hook, it will cause the skip stitch. After the above adjustments steps, the rotating hook...
Instruction Manual
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3.19 Presser Bar Height Adjustment Loosen setscrew '1' (Figure 28) and adjust the height of the presser bar. Tighten the setscrew '1' after adjustment. When the presser foot rises to the highest, the distance between the throat plate and the presser foot is 5.5 mm (Figure 29). Figure 28 5,5mm Figure 29 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 19
3.19 Presser Bar Height Adjustment Loosen setscrew '1' (Figure 28) and adjust the height of the presser bar. Tighten the setscrew '1' after adjustment. When the presser foot rises to the highest, the distance between the throat plate and the presser foot is 5.5 mm (Figure 29). Figure 28 5,5mm Figure 29 High Speed Straight Lockstitch Sewing Machine | Instruction Manual and Parts List 19