Instruction/ maintenance manual of the product MSK-8420B Reliable
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MSK- 8400 B MSK- 8420 B Indust rial S ewing M ach ine Instruction Manual.
CONTENTS 1. Brief introduction 2. Main specifications 3. Installation and preparation 3.1 Installation 3.1.1 Location of the machine 3.1.2 Installing oil reservoir 3.1.3 Mounting machine head 3.1.4 Mounting knee lifter 3.1.5 Installing the motor 3.1.6 Connecting the clutch lever to the pedal 3.
1. MSK-8420B Arm parts 2. MSK-8400B Arm parts 3. Upper shaft and presser foot parts 4. MSK-8420B Needle bar motion and Lower feed parts 5. MSK-8400B1 Needle bar motion and Lower feed parts 6. Rock shaft and thread looping parts 7. Rock shaft and thread looping parts 8.
1 2 small big B A B A oil felt -1- Both the models adopt straight twin-needle and two horizontal hooks with auto lubrication for thread looping, sliding lever for thread take up to form two lines of lockstitch seam.
A A C C B B 3 4 5 A C B -2- 3.1.4 Knee control presser foot lifter installation(Fig.3) a. Installing Install Connector A , Bell Crank B , Bell C in the order shown in Fig.
A B C D G F E 1 0 - 1 2 m m D C B A 20¡« 30 6 7 8 C A B -3- D E A B A 3.1.6 Connecting the clutch lever to the pedal (Fig.6) 1)The optimum tilt angle of pedal A with floor is approx.30 degree. 2)Adjust the clutch of the motor so that clutch lever C and draw bar B run in line.
9 10 11 12 oil mark oil screen -4- 3.2.2 Examination Though every machine is confirmed by strict inspec- tion and test before delivery, the machine parts may be loosed or deformed after long. distance transportation with jolt. A thorough examination must be performed after cleaning the machine .
13 14 A B C D E G H 2 1 F -5- long groove long groove leftward clearance (a) (d) (b) (c) A 4.1 Coordination between needle, thread and sewing material Please use needle DP 17,Nm125-180.The coarseness of needle should be in accordance with the nature of material.
L7 L5 L4 L3' L3 L2' L2 L R7 R1 15 16 17 -6- A A B C C D E A A A B B L11 R11 L8 L9 L10 L11 L12 L13 R8 R9 R10 from right to left from left to right detail chart thread L6 R6 R11 R12 R13 R5 R2 R3 R4 4.
21 20 19 18 Normal A B C -7- hook thread sliding plate hook sliding plate tension adjusting screw loosen tighten inner stop piece 1 1 2 thread 4.3.5 Placing bobbin (Fig.18) Note: when bobbin is placed into the bobbin case, the thread should be wound properly in the correct direction shown in the figure.
25 24 23 22 button balance wheel pressure adjusting screw reduce increase teeth - belt pulley shaft safety clutch device -8- needle thread tension increase reduce b. If the needle thread is too loose and the bobbin thread is too tight, then shows as Fig.
26 27 28 stop plate white mark eccentric lower shaft loosen tighten set screw belt eccentric reference line button special screw horizontal shaft crank upper layer feed reduce upper layer feed increase link b. When the stop plate stops the balance wheel, more strength is needed to turn the balance wheel to reset the safety clutch device.
30 29 oil amount adjusting screw increase reduce nut special screw crank increase reduce crank link -10- 5.5 Presser foot lift volume adjustment (Fig.29) when stitch on the very elastic material or the thickness of the sewing material is changed. The ad- justment should be done in the following order: 1.
Parts Manual.
1 -11- 28 28 34 34 33 33 13 13 12 12 32 32 31 31 30 30 29 29 27 27 26 26 35 35 36 36 39 39 25 25 24 24 37 37 13 12 13 12 66 66 65 65 40 40 23 23 20 20 19 19 22 22 21 21 13 13 13 13 12 12 12 12 43 43 4.
Item Part number 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. 1. MSK-8420B Arm P arts -12- 1WF1-001 1WF1-002 1WF1-041 1WF1-042 1W.
1 -13- 28 28 34 34 33 33 13 13 12 12 32 32 31 31 30 30 29 29 27 27 26 26 35 35 36 36 39 39 25 25 24 24 37 37 13 12 13 12 66 66 65 65 40 40 23 23 20 20 19 19 22 22 21 21 13 13 13 13 12 12 12 12 43 43 4.
-14- Item Part number 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.
2 -15- 26 32 31 13 12 30 29 28 27 25 24 33 37 23 22 35 13 12 63 64 38 19 20 21 13 13 12 12 41 40 39 13 12 11 10 9 7 8 2 6 3 4 5 14 16 15 62 53 42 43 44 45 46 62 61 59 58 57 56 55 54 52 51 50 49 48 47 1 18 17 2.
2. MSK-8400B Arm P arts -16- Item Part number Bed Arm Pin Screw Screw Trade mark plate Modle plate Nail Upper thread guide Screw Back cover Screw Washer Ccover Front slide plate Screw Thread take-up l.
2 -17- 26 32 31 13 12 30 29 28 27 25 24 33 37 23 22 35 13 12 63 64 38 19 20 21 13 13 12 12 41 40 39 13 12 11 10 9 7 8 2 6 3 4 5 14 16 15 62 53 42 43 44 45 46 62 61 59 58 57 56 55 54 52 51 50 49 48 47 1 18 17 2.
-18- Item Part number Oil retainer Throat plate Spring retaining plate Thread releasing lever Right sliding plate Left sliding plate Plug 14.5 Plug 12.
41 42 44 6 33 7 50 51 12 9 5 8 2 1 3 36 52 53 13 20 31 30 32 29 17 21 19 22 23 24 25 26 27 28 4 45 46 49 48 47 43 39 40 34 35 37 38 11 8 13 14 14 18 15 16 10 3 -19- 3.
3. Upper Shaft Presser Foot P arts -20- Item Part number Upper shaft Front bushing Screw Oil felt Needle crank Screw Screw Screw Screw Presser foot lift eccentric cam Stop ring Slot for front crank sl.
41 42 44 6 33 7 50 51 12 9 5 8 2 1 3 36 52 53 13 20 31 30 32 29 17 21 19 22 23 24 25 26 27 28 4 45 46 49 48 47 43 39 40 34 35 37 38 11 8 13 14 14 18 15 16 10 3 -21- 3.
-22- Item Part number Screw Nut Connecting lever Connecting screw Washer Oil tube assembly Sping Presser foot lift rear crank Screw Presser foot lift front crank Screw Bushing Presser foot lift link C.
1 30 29 28 27 26 10 11 38 40 43 42 44 43 45 14 15 16 17 18 19 20 25 24 23 22 32 31 21 42 46 47 48 49 1 77 76 75 69 53 52 51 50 78 79 67 66 64 65 63 54 57 56 63 62 58 45 57 56 55 54 45 68 80 59 61 60 59 74 73 72 71 70 36 37 41 39 2 3 4 5 6 7 8 9 12 13 4 -23- 33 34 35 4.
4. MSK-8420B Needle Bar And L ower Feed P arts -24- Item Part number Oil wick Shaft for needle bar motion holder Screw Screw Oil wick Bushing for thread take-up lever hole Thread take-up lever Sliding.
1 30 29 28 27 26 10 11 38 40 43 42 44 43 45 14 15 16 17 18 19 20 25 24 23 22 32 31 21 42 46 47 48 49 1 77 76 75 69 53 52 51 50 78 79 67 66 64 65 63 54 57 56 63 62 58 45 57 56 55 54 45 68 80 59 61 60 59 74 73 72 71 70 36 37 41 39 2 3 4 5 6 7 8 9 12 13 4 -25- 33 34 35 4.
-26- Item Part number Bushing for needle bar motion shaft Set screw Shaft for needle bar motion Screw Rear crank for needle bar motion Connecting nut Link for needle bar notion Connecting screw Right .
1 30 29 28 27 26 10 11 38 40 43 42 44 43 45 14 15 16 17 18 19 20 25 24 23 22 32 31 33 35 34 21 42 46 47 48 49 1 77 76 75 69 53 52 51 50 78 79 67 66 64 65 63 54 57 56 63 62 58 45 57 56 55 54 45 68 80 59 61 60 59 74 73 72 71 70 36 37 41 39 2 3 4 5 6 7 8 9 12 13 5 -27- 5.
5. MSK-8400B Needle Bar And L ower Feed P arts -28- Item Part number Oil wick Shaft for needle bar motion holder Screw Screw Oil wick Bushing for thread take-up lever hole Thread take-up lever Sliding.
1 30 29 28 27 26 10 11 38 40 43 42 44 43 45 14 15 16 17 18 19 20 25 24 23 22 32 31 33 35 34 21 42 46 47 48 49 1 77 76 75 69 53 52 51 50 78 79 67 66 64 65 63 54 57 56 63 62 58 45 57 56 55 54 45 68 80 59 61 60 59 74 73 72 71 70 36 37 41 39 2 3 4 5 6 7 8 9 12 13 5 -29- 5.
-30- Item Part number Description P cs 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.
6 £- 31£- 29 28 28 27 26 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 22 24 25 8 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 50 51 52 49 30 53 54 6.
6. MSK-8420B R ock Shaft And Thread Looping P arts -32- Item Part number Right hook saddle Screw Upper bushing of hook saddle Lower bushing of hook saddle Hook assembly Bobbin Oil wick Hinge shaft Scr.
6 £- 33£- 29 28 28 27 26 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 22 24 25 8 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 50 51 52 49 30 53 54 6.
-34- Item Part number Oil wick Rock shaft Feed dog lift cam Set screw Right bushing for rock shaft Oil wick Split stop ring Spring Button Set screw Feed cam Feed link Needle bearing Spring stop ring M.
7 -35- 28 27 27 26 25 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 22 24 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 49 50 51 8 52 53 29 48 7.
7.MSK-8400B R ock Shaft And Thread Looping P arts -36- Item Part number Description P cs Right hook saddle Screw Upper bushing of hook saddle Lower bushing of hook saddle Hook assembly Bobbin Oil wick.
7 -37- 28 27 27 26 25 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 22 24 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 49 50 51 8 52 53 29 48 7.
-38- Item Part number Description P cs Rock shaft Feed dog lift cam Set screw Right bushing for rock shaft Oil wick Split stop ring Spring Button Set screw Feed cam Feed link Needle bearing Spring sto.
8 -39- 3 4 5 6 7 8 9 1 2 10 2 12 13 16 15 19 20 30 29 28 26 27 24 25 22 2 23 21 11 24 18 17 14 3 4 5 6 7 8 9 8.Stitch Length Adjusting P arts.
-40- Item Part number Description P cs 8.Stitch Length Adjusting P arts Stitch length adjusting swing lever Screw Set screw Stitch length link Stitch length link eccentric shaft Reverse sewing shaft R.
32 36 40 41 42 43 44 45 46 48 47 39 38 37 35 34 33 31 18 19 20 21 22 24 29 26 2 1 3 4 5 7 6 8 11 12 9 16 15 49 14 13 10 28 27 19 28 23 9 -41- 30 17 9.Presser Foot Lift P arts.
9.Presser Foot Lift P arts -42- Item Part number Description P cs Sliding block rail Screw Screw Nut Screw Spring Knee lift lever Pressure adjusting screw Pressure bar spring lever Screw Screw Knee co.
32 36 40 41 42 43 44 45 46 48 47 39 38 37 35 34 33 31 18 19 20 21 22 24 29 26 2 1 3 4 5 7 6 8 11 12 9 16 15 49 14 13 10 28 27 19 28 23 9 -43- 30 17 9.Presser Foot Lift P arts.
9.Presser Foot Lift P arts -44- Item Part number Description P cs Screw Washer Retain ring Knee lifter stop bracket Adjust screw Adjust nut Screw Position spring Hinge pin Screw Connector Bent rod Screw Knee lifter bell bracket Bell Pat Knee lifter prop ear 33.
10 -45- 3 4 12 13 2 1 40 39 44 43 23 45 47 16 46 48 21 20 26 15 16 17 18 19 20 21 22 23 24 25 26 27 28 36 23 35 34 16 31 32 33 16 30 29 16 38 23 37 21 49 20 41 42 14 6 7 8 10 11 9 5 10.
10.MSK-8420B L ubrication Parts -46- Item Part number Description P cs Oil felt press spring Screw Oil felt Oil pipe Oil wick Oil cup Oil cup cover Screw Spring pin Wick press spring Oil pipe Oil drai.
10 -47- 3 4 12 13 2 1 40 39 44 43 23 45 47 16 46 48 21 20 26 15 16 17 18 19 20 21 22 23 24 25 26 27 28 36 23 35 34 16 31 32 33 16 30 29 16 38 23 37 21 49 20 41 42 14 6 7 8 10 11 9 5 10.
-48- Item Part number Description P cs Washer Filter screw Oil filter bracket Oil pipe clamp Oil pipe Oil pipe clamp Oil tray assembly Oil wick Oil pipe Oil pipe Pipe clamp Oil pipe Oil wick Oil wick 3-nozzle oil mouth bracket Oil pipe clamp 3-nozzle oil mouth bracket Oil filter bracket 32.
11 -49- 3 4 5 9 45 43 42 44 23 2 1 40 41 39 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 16 31 32 33 16 34 35 23 16 38 23 37 36 21 20 21 46 26 20 6 7 8 10 11 12 13 14 11.
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. 1WF6-001 1WF6-034 1WF6-003 1WF6-005A 1WF6-004 1WF6-007 1WF6-008 1WF6-009 1WF6-006 1WF.
11 -51- 3 4 5 9 45 43 42 44 23 2 1 40 41 39 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 16 31 32 33 16 34 35 23 16 38 23 37 36 21 20 21 46 26 20 6 7 8 10 11 12 13 14 11.
-52- Item Part number Description P cs Washer Filter screen Oil filter bracket Oil pipe clamp Oil pipe Pipe clamp Oil tray assembly Oil wick Oil pipe Pipe clamp Oil pipe Oil wick Oil wick Oil pipe clamp Oil filter bracket 32. 33. 34. 35. 36. 37. 38. 39.
12 -53- 18 18 6 6 2 2 3 3 1 1 4 4 5 5 16 16 19 19 8 8 9 9 11 11 12 12 13 13 14 14 15 15 17 17 10 10 7 7 12.Accessories.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 33TF-010 22T9-007F1 22T9-007F2 22T9-009 22T9-010 1WF2-065 33TF-011 33TF-016 1F-009 1F-011 1F-010 33TF-012 33TF-013 33TF-014 58T0-007C 22T9-018 1F-012 S14420020 1F-014(33TF-019) 1 2 2 2 2 4 1 1 1 1 1 1 1 1 1 1 1 1 1 12.
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An important point after buying a device Reliable MSK-8420B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Reliable MSK-8420B yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Reliable MSK-8420B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Reliable MSK-8420B you will learn all the available features of the product, as well as information on its operation. The information that you get Reliable MSK-8420B will certainly help you make a decision on the purchase.
If you already are a holder of Reliable MSK-8420B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Reliable MSK-8420B.
However, one of the most important roles played by the user manual is to help in solving problems with Reliable MSK-8420B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Reliable MSK-8420B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
