BEFORE OPERATION ..................................... . .. . .............................................................................................. 1
SPECIFICATIONS ................................................................................ . ............................................................ 4
1. INSTALLATION ......................................................................................................................... . . ................ 8
4. ATTACHING THE IBELT COVER .............................................................................................. . ............... 13
5. LUBRICATION .............................................................................. . ........................................................... 16
6 , . ATTACHING T HE NEEDLE ..................................................................................................................... 20
7'. ATTACHING/REMOVING THE BOBBIN ................................................................................................. 22
131. THREADING THE HOOK ............................................................. . . . .......................................................... 23
!31. INSTALLING THE BOBBIN WINDER THREAD GUIDE .............. . ........................................................... 24
10. WINDING A BOBBIN .................................................................. . .. . .......................................................... 24
13. THREAD TENSION ......................................... . ........................... ,, ............................................................ 30
14. THREJl:,DTAKE-UP SPRING ............................ . ......... . .............................................................................. 32
15. HANIID LIFTER ............................................................. . ............................................................................ 33
17. NEEDLE-TO-HOOK RELATION .............................................................................................................. 35
19. ADJUSTING THE BOBBIN CASE OPENING LEVEFl ............................................................................ 40
20. ADJUSTING THE L IFTING AMOUNT OF THE PRESSER FOOT AND THE WALKING FOOT ............. 42
2· 1 . SEWING SPEED TABLE ......................................................................................................................... 44
22. MOTOR PULLEY AND V BELT ................................................................................................ . ............... 46
24. TROUBLES IN SEWING AND CORRECTIVE MEASURES .................................................................. 51
CONTENTS