bernette b62 Airlock Coverstitch Machine User Guide

bernette b62 Airlock Coverstitch Machine

Product Information

The product is a machine designed for sewing and overlocking. It has various features and components that make it easy to use and maintain. The machine includes the following:

• Presser foot lifter
• Stitch length adjustment
• Differential feed control
• Handwheel
• Foot control and power connection
• Power switch
• Presser foot pressure adjustment
• Thread cutter
• Presser foot lifter

Product Usage Instructions

Connection and Switching On
To connect and switch on the machine, follow these steps:

1. Connect the power cord to the machine.
2. Switch on the machine using the power switch, located at position “ON”.

Changing the Presser Foot
If you need to change the presser foot, follow these steps:

1. Press the presser foot lifter to raise the presser foot.
2. Remove the current presser foot.
3. Attach the desired presser foot.

Changing the Needle
To change the needle, follow these steps:

1. Ensure the machine is turned off.
2. Loosen the needle clamp screw.
3. Remove the current needle.
4. Insert a new needle into the needle clamp with the flat side facing the back.
5. Tighten the needle clamp screw.

Threading the Looper Thread
To thread the looper thread, follow these steps:

1. Follow the numbered guide from “a” to “h” to thread the looper thread through the designated paths.

Threading the Needle Threads
To thread the needle threads, follow these steps:

1. Follow the numbered guide from “a” to “i” to thread the needle threads through the designated paths.

Adjusting the Thread Tensions
To adjust the thread tensions, follow these steps:

For Needle thread:

1. Loosen or tighten the needle thread tension as needed.

For Chain looper thread:

1. Loosen or tighten the chain looper thread tension as needed.

Setting the Stitch Length
To set the stitch length, follow these steps:

1. Select the desired stitch length using the stitch length adjustment dial.

Adjusting the Differential Feed
To adjust the differential feed, follow these steps:

1. Select the desired differential feed setting using the differential feed control dial.

Cleaning and Maintenance
To clean and maintain the machine, follow these steps:

1. Ensure the machine is turned off and unplugged.
2. Clean the machine with a soft cloth.
3. Remove any lint or thread scraps from the machine.
4. Refer to the instruction manual for more detailed maintenance instructions.

Troubleshooting

• If you encounter any issues with the machine, refer to the troubleshooting section of the instruction manual for possible remedies.
• For complete instructions, you can refer to the online user manual or watch instructional videos at www.bernette.com/b62AIRLOCK. You can also scan the QR-Code with your smartphone for easy access to the resources.
• For any further assistance or inquiries, please visit www.bernina.com.
• Product manufactured in Steckborn CH.

Details of machine

1. Presser foot lifter
2. Stitch length
3. Diff erential Feed
4. Handwheel
5. Foot control-/ power connection
6. Power switch
7. Presser foot pressure
8. Thread cutter
9. Presser foot lifter

Connection and switching on

Changing the presser foot

Changing the needle

Threading the looper thread

Threading the needle threads

Adjusting the thread tensions

Needle thread (yellow, green or blue) creates loops on bottom side of the fabric.

Chain looper (purple) thread loose on the bottom side of fabric.

Chain looper (purple) thread too tense, seam is tunneling.

The seam puckers. Needle threads (yellow, green or blue) too tense.

Setting the Stitch Length

Adjusting the Differential Feed

Cleaning and maintenance

Troubleshooting

•    Increase the Presser Foot Pressure for heavyweight fabric.
•    Decrease the Presser Foot Pressure for lightweight fabrics.
•    Check the setting of the Differential Feed.
Needle breaks| •    Insert the needle correctly.
•    Do not pull the fabric while sewing.
•    Tighten the Needle Set Screw.
•    Select the appropriate needle for the sewing project and the weight of thread.
Thread breaks| •    Loosen the Thread Tension.
•    Check the threading path.
•    Check for tangled or caught thread.
•    Insert the needle correctly.
•    Insert a new needle; inserted needles may be bent or have a blunt point.
•    Use high quality thread.
Skipped stitches| •    Insert a new needle; the inserted needles may be bent or have a blunt point.
•    Tighten the Needle Set Screw.
•    Insert the needles correctly.
•    Select the appropriate needle for the sewing project and the weight of thread.
•    Check the threading path.
•    Increase the Presser Foot Pressure.
•    Use high quality thread.
Irregular stitches| •    Balance the Thread Tension.
•    Check for tangled or caught thread.
•    Check the threading path.
Fabric puckers| •    Check the setting of the Differential Feed.
•    Loosen the Thread Tension.
•    Check for tangled or caught thread.
•    Use high quality thread.
•    Shorten the stitch length.
•    Decrease the Presser Foot Pressure for lightweight fabrics.
Fabric piles up| •    Lengthen the stitch length.
•    Check the setting of the Differential Feed.
•    Check for tangled or caught thread.
•    Compress/Baste thick layers of fabric with a conventional ma- chine before sewing with the Overlocker.
Machine does not operate| •    Connect machine to the power source and switch it on.
•    Close the Looper cover.

For complete instructions, you can link to the online user manual or how-to videos at www.bernette.com/b62AIRLOCK or scan the QR-Code with your smartphone.

www.bernette.com/b62AIRLOCK

5400062.00A.04 – L2P32 | en 2021-06

© BERNINA International AG
Steckborn CH, www.bernina.com.

References

• bernette - swiss design sewing machines, overlockers and sergers.
• bernette 62 AIRLOCK

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