JUKI DSC-246, Instruction Manual

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viii
CONTENTS
SPECIFICATIONS ..............................................................................................................1
1. SETTING UP THE SEWING MACHINE .......................................................................2
2. INSTALLING THE THREAD STAND ...........................................................................2
3. INSTALLING THE BELT COVER AND THE BOBBIN WINDER .................................3
4. LUBRICATOIN .............................................................................................................3
5. ATTACHING THE NEEDLE .........................................................................................4
6. WINDING A BOBBIN ...................................................................................................5
7. THREADING THE BOBBIN CASE ..............................................................................5
8. INSTALLING THE TAKE-UP THREAD GUIDE ROD ..................................................5
9. THREAD THE MACHINE HEAD ..................................................................................6
10. ADJUSTING THE STITCH LENGTH ...........................................................................6
11. FORWARD/REVERSE SEAM RATIO ..........................................................................6
12. THREAD TENSION ......................................................................................................7
13. THREAD TAKE-UP SPRING .......................................................................................7
14. PRESSURES OF THE PRESSER FOOT AND WALKING FOOT ..............................7
15. HEIGHT OF THE FEED DOG (DSC-246, DSC-246-7) ................................................8
16. ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT ..............................9
17. NEEDLE-TO-HOOK RELATIONSHIP ........................................................................10
18. AUXILIARY THREAD TENSION CONTROLLER (DSC-246-7, DSC-246V-7) .......... 11
19. ADJUSTING THE PRESSURE OF THE FIXED KNIFE (DSC-246-7, DSC-246V-7) .... 11
20. ONE-TOUCH TYPE REVERSE FEED STITCHING MECHANISM
(DSC-246-7, DSC-246V-7) ......................................................................................... 11
21. ADJUSTING THE THREAD TRIMMING CAM (DSC-246-7, DSC-246V-7) ...............12
22. ADJUSTING THE CAM ROLLER ARM AND CAM ROLLER ARM PRESSER
(DSC-246-7, DSC-246V-7) .........................................................................................12
23. ADJUSTING MAX MOVING STROKE OF THE ROTARY KNIFE
(DSC-246-7, DSC-246V-7) .........................................................................................12
24. ADJUSTING THE OPERATING STROKE OF THE PICKER
(DSC-246-7, DSC-246V-7) .........................................................................................13
25. HOW TO REPLACE THE KNIVES (DSC-246-7, DSC-246V-7) .................................13
26. HOW TO CHANGE FROM ELLIPTICAL FEED TO HORIZONTAL FEED ................14
27. HOW TO CHANGE FROM HORIZONTAL FEED TO ELLIPTICAL FEED ................16
28. MOTOR PULLEY AND SEWING SPEED (DSC-246, DSC-246V) ............................18
29. TROUBLES AND CORRECTIVE MEASURES .........................................................19
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11
19
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
（
DSC-246-7, DSC-246V-7
）
2 4
（
DSC-246-7, DSC-246V-7
）
2 5