JUKI DU-140 User Manual

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12. THREAD TENSION
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
13. THREAD TAKE-UP SPRING
14. PRESSURES OF THE PRESSER FOOT AND WALKING FOOT
vii
CONTENTS
BEFORE OPERATION .....................................................................................................................1
SPECIFICATIONS ...........................................................................................................................1
1. INSTALLATION OF THE MACHINE ..........................................................................................1
2. ADJUSTING THE BELT TENSION .............................................................................................2
3. INSTALLATION OF THREAD STAND .......................................................................................3
4. ATTACHING THE BELT COVER AND BOBBIN WINDER ...........................................................3
5. LUBRICATION ..........................................................................................................................4
6. ATTACHING THE NEEDLE ........................................................................................................4
7. WINDING A BOBBIN ...............................................................................................................5
8. THREADING THE BOBBIN CASE .............................................................................................5
9. INSTALLING THE TAKE-UP THREAD GUIDE ROD...................................................................5
10. THREAD THE MACHINE HEAD ................................................................................................6
11. ADJUSTING THE STITCH LENGTH ..........................................................................................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 .....................................................................................................8
16. ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT ................................................8
17. NEEDLE-TO-HOOK RELATIONSHIP ........................................................................................9
18. AUXILIARY THREAD TENSION CONTROLLER ......................................................................10
19. PRESSURE OF THE FIXED KNIFE ...........................................................................................10
20. ONE-TOUCH TYPE REVERSE FEED STITCHING MECHANISM ............................................10
21. HOME POSITION OF THE ROTARY KNIFE ............................................................................11
22. ADJUSTING THE THREAD TRIMMING CAM .........................................................................11
23. HOW TO MANUALLY OPERATE THE THREAD TRIMMER .....................................................11
24. HOW TO REPLACE THE KNIVES ............................................................................................12
25. SEWING SPEED VS. ALTERNATE LIFTS ................................................................................12
26. TROUBLES AND CORRECTIVE MEASURES ..........................................................................13

JUKI DU-140 Specifications

General

Brand	JUKI
Model	DU-140
Category	Sewing Machine
Language	English