Bernina L 890 User Manual page 5

6 Stitch .................................................................... 66
6.1 Stitch type .............................................................. 66
Overlockstitch .............................................................
Coverstitch .................................................................
Chainstitch .................................................................
Combostitch ...............................................................
6.2 Stitch selection on the screen ................................. 71
Selecting a stitch directly .............................................
Selecting a stitch from the personal memory ...............
Using the stitch recommendation of creative
consultant ..................................................................
7 Machine settings ................................................. 74
7.1 Preparing the machine for overlock or overlock/
chainstitch combo .................................................. 74
7.2 Preparing the machine for cover- and chainstitch ... 74
7.3 Setting the knife .................................................... 74
Knife on/off ................................................................
Setting the cutting width ............................................
7.4 Setting the upper looper on/off .............................. 76
7.5 Upper looper converter hooked in/hooked out ....... 77
7.6 Adjusting the thread tension .................................. 78
7.7 Adjusting the differential feed ................................ 80
7.8 Setting the rolled hem selection lever «O/R» .......... 83
Overlocking «O» .........................................................
Rolled hem «R» ..........................................................
7.9 Setting the mtc micro thread control ...................... 84
7.10 Setting the presser foot pressure ............................ 85
7.11 Adjusting the stitch width ...................................... 86
Changing the stitch width via the needle position .......
Changing the stitch width via the cutting width ..........
7.12 Adjusting the stitch length .................................... 86
8 Threading ............................................................. 87
8.1 Preparing for threading .......................................... 88
8.2 One-step BERNINA air threader .............................. 89
Performing a pulse drive .............................................
Threading the looper threads UL/blue, LL/red, CL/
purple .........................................................................
Threading the looper thread with an auxiliary thread ..
Circumventing the air theader ....................................
Using the threading wire ............................................
8.3 Threading the needle thread .................................. 95
Threading the overlock needle thread LN/yellow .........
Threading the overlock needle thread RN/green ........... 96
Threading the coverstitch needle thread left LC/yellow . 97
Threading the coverstitch needle thread center CC/
66
green ........................................................................... 98
69
Threading the right coverstitch needle thread RC/blue .. 99
69
8.4 Changing the thread ............................................... 100
70
Knotting thick thread ................................................... 100
Changing the needle thread ......................................... 101
71
Changing the looper thread ......................................... 102
72
9 Sewing test ........................................................... 103
73
9.1 Performing a sewing test for an overlock stitch ....... 103
9.2 Perfoming a sewing test for an coverstitch .............. 103
9.3 Perfoming a sewing test for an chainstitch .............. 103
9.4 Stitch optimizer ....................................................... 104
10 Practical overlocking ............................................ 105
10.1 Securing overlock stitches ....................................... 105
74
Sewing in the overlock chain at the start of the seam ... 105
75
Sewing in the overlock chain at the end of the seam .... 105
Securing overlock stitches ............................................ 106
Knotting the overlock chain ......................................... 106
10.2 Undoing overlock stitches ....................................... 106
10.3 Securing cover- and chainstitches ............................ 107
Securing cover- and chainstitches at the start of the
seam ............................................................................ 107
83
Securing coverstitches at the seam end ........................ 107
83
10.4 Undoing coverstitches ............................................. 108
10.5 Undoing chainstitches ............................................. 108
10.6 Sew blanket stitch ................................................... 109
10.7 Gathering ............................................................... 110
86
Increasing the differential feed ..................................... 110
86
Pulling the needle thread ............................................. 110
10.8 Sew outer corners ................................................... 111
10.9 Sew inner corners ................................................... 112
10.10 Sewing inner curves ................................................ 113
10.11 Sew outer curves and circles ................................... 113
89
10.12 Sewing a hem ......................................................... 114
90
10.13 Flat joining seams ................................................... 115
91
92 11 Care and maintenance ......................................... 116
94
11.1 Firmware ................................................................ 116
Selecting a language .................................................... 116
95
Information on the firmware ........................................ 117
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