Bernette b68 AIRLOCK

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Selecting a Stitch

2022-05 EN 50400685.00A.04

No. Stitch Name Stitch Pattern

No.

2-Thread Overlock (LN) + 2-Thread

Chainstitch (LC)

No.

2-Thread Overlock (RN) + 2-Thread

Chainstitch (LC)

Tab.3: Recommended stitches for a durable closed seam

Main Page

Table of Contents3
Important Safety Instructions6
Important Information9
My Bernette11
Machine Overview11
Overview - Front11
Overview - Needle Area12
Overview - Presser Foot13
Overview - Looper Area14
Overview - Threading Area15
Overview - Side Panel16
Symbols on the Machine17
Default Values18
Overview - Standard Accessories19
Included Accessories19
Accessories Behind the Threader Cover20
Accessories Box21
Setting up the Machine22
Working Area22
Connection and Switching on22
Connecting the Machine and Foot Control22
Switching the Machine and Sewing Light On/Off22
Foot Control23
Press the Foot Control23
Handwheel23
Machine Covers23
Open/Close the Threader Cover24
Removing/Attaching the Knife Cover Insert/Coverstitch Insert24
Removing/Attaching the Coverstitch Insert for the Slide-On Table25
Spool Holder26
Attaching the Spool Holder26
Preparing the Thread Guide27
Attaching the Spool Stabilizer27
Place the Spool Disc28
Using the Spool Net28
Presser Foot28
Positioning the Presser Foot Up/Down28
Lifting the Presser Foot Up/Down with the Knee Lifter29
Changing the Presser Foot29
Needle Area30
Needle Holder30
Changing the Needle30
Positioning the Needles Up/Down31
Threading the Needle Manually32
Sewing Assistance33
Using the Thread Cutter33
Needle Pad33
Attaching/Removing the Knee Llifter34
Attaching/Removing the Cut-Offs bin34
Attaching/Removing the Freearm Cover35
Attaching/Removing the Slide-On Table35
Attaching the Decorative Threads Guide36
Sewing Start37
Check before Starting to Sew37
Selecting the Fabric37
Selecting the Thread37
Needle Thread38
Looper Thread38
Selecting the Needle39
Detect Defective Needles39
Needle Overview40
Fixing Fabric Layers40
Selecting a Stitch41
Stitch Type41
Overlock Stitch41
Coverstitch45
Chainstitch46
Combostitch47
Stitch Chart49
Machine Settings53
Preparing the Machine for Overlock or Overlock/Chainstitch Combo53
Preparing the Machine for Cover- and Chainstitch53
Setting the Knife53
Knife "On/Off53
Setting the Cutting Width54
Adjusting the Stitch Width55
Setting the Upper Looper On/Off56
Upper Looper Converter Hooked In/Hooked out57
Setting the Stitch Length57
Rolled Hem Selection Lever "N/R58
Setting Overlocking "N58
Setting Rolled Hem "R58
Setting the Mtc Micro Thread Control59
Setting the Presser Foot Pressure60
Adjusting the Differential Feed61
Default Value "161
Gathering/Gather to Fit "1.562
Stretching "0.663
Threading64
Preparing for Threading65
Threading the Needle Thread66
Threading the Left Overlock Needle Thread Ln/Yellow66
Threading the Right Overlock Needle Thread Rn/Green67
Threading the Left Coverstitch Needle Thread Lc/Yellow68
Threading the Center Coverstitch Needle Thread CC/Green69
Threading the Right Coverstitch Needle Thread Rc/Blue70
Threading the Looper Thread71
Using the Air Threader71
Threading the Looper Thread with an Auxiliary Thread73
Using the Threading Wire73
Changing the Thread74
Knotting Thick Thread74
Changing the Needle Thread74
Changing the Looper Thread75
Sewing Test76
Perfoming a Sewing Test for an Overlock Stitch76
Perfoming a Sewing Test for an Coverstitch76
Perfoming a Sewing Test for an Chainstitch76
Optimizing Stitches77
4-Thread Overlock with Integrated Safety Seam77
3-Thread Super Stretch77
3-Thread Overlock Wide (LN)78
3-Thread Overlock Narrow (RN)78
3-Thread Flatlock Wide (LN)79
3-Thread Flatlock Narrow (RN)79
3-Thread Narrow Seam80
3-Thread Rolled Hem80
2-Thread Wrapped Overlock Wide (LN)81
2-Thread Wrapped Overlock Narrow (RN)82
2-Thread Flatlock Wide (LN)82
2-Thread Flatlock Narrow (RN)83
2-Thread Rolled Hem83
2-Thread Overlock Wide (LN)83
2-Thread Overlock Narrow (RN)84
2-Thread Chainstitch84
3-Thread Overlock (LN) + Chainstitch (RC)85
3-Thread Overlock (RN) + Chainstitch (RC)85
2-Thread Overlock (LN) + Chainstitch (RC)86
2-Thread Overlock (RN) + Chainstitch (RC)87
4-Thread Coverstitch88
3-Thread Coverstitch Wide (LC-RC)88
3-Thread Coverstitch Narrow (LC-CC)89
3-Thread Coverstitch Narrow (CC-RC)89
3-Thread Picotstitch89
Practical Overlocking91
Securing Overlock Stitches91
Sewing in the Overlock Chain at the Start of the Seam91
Sewing in the Overlock Chain at the End of the Seam91
Securing Overlock Stitches92
Knotting the Overlock Chain92
Removing a Stitch92
Securing Coverstitches93
Securing Cover- and Chainstitches at the Start of the Seam93
Securing Cover- and Chainstitches at the Seam End93
Securing the Stitches at the Seam End and Detaching the Thread Chain94
How to Undo Coverstitches95
Undoing Coverstitches95
Undoing Chainstitches95
Sewing a Hem95
Flatlock96
Joining Seams97
Binding Seams97
Topstitching Seams98
Gathering98
Pulling the Needle Thread98
Gathering a Seam99
Sew Outer Corners99
Sewing Inner Corners100
Sewing Inner Curves100
Sew Outer Curves and Circles101
Appendix102
Storing and Transporting the Machine102
Storing the Machine102
Transporting the Machine102
Maintenance and Cleaning the Machine102
Cleaning the Machine102
Cleaning the Looper Area103
Cleaning the Air Threader Pipes104
Cleaning the Suction Feet104
Oiling the Machine104
Troubleshooting105
Technical Specifications106

Bernette b68 AIRLOCK - Page 48

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