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Reliable MSK-8400BL-18 manual

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Table of contents for the manual

  • Page 1

    MSK- 8400 BL- 18 MSK- 8420 BL- 18 Indust rial S ewing M ach ine Instruction Manual[...]

  • Page 2

    CONTENTS 1. Brief introduction 1 2. Main specifications 1 3. Machine installation and operation preparation 1 1. Machine installation 1-3 2. Operation preparation and notice before running 3-4 4. Machine operation 5-6 1. Coordination among needle, thread and materials 5 2. Install the needle 5 3. Winding the bobbin thread 5-6 5. Machine adjustment [...]

  • Page 3

    Operation instruction[...]

  • Page 4

    MSK-8420BL-18 1 2 MSK-8420BL-18 machine adopts straight double needle and two vertical auto-lubricating hooks for thread looping, sliding lever for thread take up to form two lines of lockstitch seam. The upper and lower shafts are supported by needle bearing and driven by toothed belt, plunger oil pump lubrication system, compound feed mechanism o[...]

  • Page 5

    3 5 4 C B A A B C E D A 1.4 Install the presser foot lifting controller (Fig. 3) First connect the chain B with presser foot lift lever C by hooks A, then install the pedal assembly D on the rung of the stand, move the controller E leftward or rightward to make the chain in one line, fix it with bolt and nut, finally connect the hook with the contr[...]

  • Page 6

    6 20 ~30 A B C D E F G 10~12mm 3 7 8 B A 1.7 Connecting the clutch lever to the pedal (Fig. 6) A. The optimum tilt angle of pedal against floor is approx. 20 30 . . B. Adjust the clutch of motor so that the clutch lever C and draw bar B run in line. . C. The machine hand wheel should rotate counter-clockwise for normal sewing when view from opposit[...]

  • Page 7

    9 10 4 11 A B. When the machine starts for initial time or reuse after a long time, the proper oil amount should be filled in the sections of machine shown by arrows in Fig. 8,9. When it is in operation, please observe the oil sparking in oil screen to check the oil condition. . . . . . C. When a new machine starts running, for extending its lift, [...]

  • Page 8

    13 14 A B A B A B A 12 5 C B A E D F 3. Winding the bobbin thr ead 3.1 The method of winding Insert the bobbin B into winder shaft, threading the thread A to upper and lower holes of pin E, then to thread tension disc F , draw the thread tip and wind thread several circles around bobbin B, put the winding lever D into bobbin B, then it can automati[...]

  • Page 9

    6 17 15 C B A 16 3.4 Placing bobbin (Fig. 15) Note: when bobbin is placed into the bobbin case, the thread should be wound properly in the correct direction shown in the figure. . 3.5 Drawing thread from the bobbin (Fig. 16) A. Draw the thread end to bobbin slot shown in the figure, and pull it out down through the inner bobbin stop piece. B. Hold [...]

  • Page 10

    7 18 21 19 20 A. If the stitch seam shows as Fig. 17B, indicates that the needle thread tension is too tight or the bobbin thread tension is too loose. Please turn the thread tension nut counter-clockwise to release the needle thread pressure; or turn the bobbin lace adjusting screw with a screwdriver to increase the bobbin thread tension.( See Fig[...]

  • Page 11

    8 24 22 23 3.2 How t o reset the safety clutch device (Fig.22) A. While press down the button on the bed surface with left hand, turn the hand wheel slowly with right hand in the direction shown in Fig. 22 (clockwise). B. When the stopper brakes the hand wheel, more strength is needed to turn the balance wheel to reset the safety clutch device. C. [...]

  • Page 12

    9 25 26 Oil amount adjusting screw Oil amount adjusting screw Oil amount adjusting screw 3.5 Adjust the vertical stroke of presser foot (Fig. 25) When stitch on the very elastic materials or the thickness of sewing materials changes, the adjustment should be done in the following order: . . . . A. Loosen the special stud. B. When the central line d[...]

  • Page 13

    Parts manual[...]

  • Page 14

    1 2 3 4 5 6 7 8 9 10 11 68 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 14 45 12 13 1.MSK-8420BL-18 machine casting components 10[...]

  • Page 15

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 1 1 2 1 3 1 1 4 1 2 1 15 15 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 Machine bed Machine arm Pin Screw Screw Model label Brand label Rivet Upper thread guide Screw Back cover Screw Washer Cover Front slide plate[...]

  • Page 16

    1 2 3 4 5 6 7 8 9 10 11 68 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 14 45 12 13 1.MSK-8420BL-18 machine casting components 12[...]

  • Page 17

    44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 1 2 2 2 2 1 3 2 2 4 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 Thread tension fixing bracket assembly Thread guide bracket Thread guide plate Spring Thread guide b acket screw assembly Thread releasing pin (short) Thread tension nut Thread tension spring Thread releasing disc Thread tens[...]

  • Page 18

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 14 45 2.MSK-8400BL-18 machine casting components 43 12 13 65 14[...]

  • Page 19

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 1 1 2 1 3 1 1 4 1 2 1 15 15 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 Machine bed Machine arm Pin Screw Screw Model label Brand label Rivet Upper thread guide Screw Back cover Screw Washer Cover Front slide plate Screw Thr[...]

  • Page 20

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 14 45 43 12 13 65 16[...]

  • Page 21

    42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 Thread tension fixing bracket assembly Thread guide bracket Thread guide plate Spring Thread guide bracket screw assembly Thread releasing pin (short) Thread tension nut Thread tension spring Thread releasing disc Thread tension d[...]

  • Page 22

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 36 14 8 13 18[...]

  • Page 23

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 1 1 1 1 1 1 1 3 1 1 1 1 3 3 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 2 2 1 1 1 1 1 1 2 2 1 1 1 2 1 Upper shaft Upper shaft bushing (front) Screw Oil felt Needle crank Screw Screw[...]

  • Page 24

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 42 43 45 1 45 59 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 45 56 57 54 33 34 35 MSK-8420BL-18 MSK-8400BL-18 20[...]

  • Page 25

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 6 2 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 Oil wick Shaft for needle bar rocking frame Screw Screw Oil wick Bushing Thread take-up lever Thread take-up lever sliding block Screw Oil wick Plug Ne[...]

  • Page 26

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 42 43 45 1 45 59 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 45 56 57 54 33 34 35 MSK-8420BL-18 MSK-8400BL-18 22[...]

  • Page 27

    41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 2 2 2 1 3 1 1 1 1 1 1 1 1 2 2 2 4 1 2 1 1 1 2 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 Screw Bushing Screw Needle bar rocking shaft Rear crank Nut Link lever Screw Feed shaft right crank Pin Washer Nut Feed shaft bushing Screw Collar[...]

  • Page 28

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 28 24[...]

  • Page 29

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Right hook saddle Screw Upper bushing Lower bushing Rotary hook assembly Bobbin Oil wick Hinge shaft Screw Link lever Inner hook finger bracket Screw Washer Inner hook finger Washer Nut Upper bushi[...]

  • Page 30

    7 8 9 10 12 13 14 2 1 2 3 4 5 6 11 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 24 2 26[...]

  • Page 31

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 5 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 2 4 Stitch length adjusting rocking lever Screw Set screw Stitch length link Eccentric shaft Reverse feed shaft Reverse feed crank Screw Screw Reverse feed lever Sliding block Crank spring Spring bracket Screw Sto[...]

  • Page 32

    33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 16 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 44 28 36 53 54 55 56 57 58 59 Automatic presser foot lifter components[...]

  • Page 33

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 2 2 2 Screw Nut Thread tension spring Thread tension disc Thread t[...]

  • Page 34

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 16 16 23 23 23 16 20 21 26 20 21 30[...]

  • Page 35

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 10 1 1 1 4 4 1 8 2 1 2 1 1 1 1 1 1 1 1 1 1 3 2 1 1 1 1 3 2 1 1 1 1 1 1 Oil felt press spring Screw Oil felt Oil pipe Oil wick Oil cup Oil cup cover Screw Pin Oil wick press spring Oi[...]

  • Page 36

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 32[...]

  • Page 37

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 2 2 2 2 4 1 1 1 bag 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Parts bag Casting hinge Casting hinge cushion Casting cushion (big) Casting cushion Bobbin Oil pot V-belt Needle Hexagon wrench Hexagon wrench Screwdriver (big) Screwdriver (middle) Screwdriver (small) Needle thread guide assembly Machine head[...]

  • Page 38

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