Bernette b62 AIRLOCK User manual

User Manual

Table of Contents
2022-01 EN 5040062.0.04 3
Table of Contents
1 IMPORTANT SAFETY INSTRUCTIONS ................. 5
Important information ........................................ 8
2 My bernette ......................................................... 10
2.1 Machine overview .................................................. 10
Front view .................................................................. 10
Overview - Needle area ............................................... 11
Overview Presser Foot ................................................. 12
Overview - Looper area ............................................... 13
Overview Threading area ............................................ 14
Overview - Side panel ................................................. 15
Symbols on the machine ............................................. 16
2.2 Overview - standard accessories ............................. 17
Included accessories .................................................... 17
Accessories behind the Threader Cover ....................... 18
Accessories Box .......................................................... 18
3 Setting up the machine ...................................... 20
3.1 Working area ......................................................... 20
3.2 Connection and Switching on ................................ 20
Connecting the machine and foot control ................... 20
Switching the machine and sewing light on/off ........... 20
3.3 Foot control ........................................................... 21
Press the foot control .................................................. 21
3.4 Handwheel ............................................................ 21
3.5 Machine covers ...................................................... 21
Threader Cover ........................................................... 22
Coverstitch insert ........................................................ 22
Removing/attaching the Coverstitch Insert for Slide-on
Table .......................................................................... 23
3.6 Thread stand .......................................................... 23
Attaching the Thread Stand ........................................ 23
Preparing the Thread Guide ........................................ 24
Attaching the spool stabilizer ...................................... 24
Place the spool disc ..................................................... 25
Using the spool net ..................................................... 25
3.7 Presser foot ............................................................ 25
Positioning the presser foot up/down .......................... 25
Lifting the presser foot up/down with the knee lifter ... 26
Changing the presser foot .......................................... 26
3.8 Needle area ............................................................ 27
Needle holder ............................................................. 27
Changing the needle .................................................. 28
Threading the needle manually .................................... 29
3.9 Sewing Assistance ................................................... 30
Using the thread cutter ................................................ 30
Needle Pad ................................................................... 30
Attaching/removing the knee lifter ............................... 31
Attaching/removing the freearm cover ......................... 31
Attaching/removing the slide-on table .......................... 31
Attaching the Decorative Threads Guide ...................... 32
4 Sewing start ......................................................... 33
4.1 Check before starting to sew .................................. 33
4.2 Selecting the fabric ................................................. 33
4.3 Selecting the thread ................................................ 33
Needle Thread .............................................................. 34
Looper Thread .............................................................. 34
4.4 Selecting the needle ................................................ 35
Detect defective needles .............................................. 36
Needle Overview .......................................................... 36
5 Stitch ..................................................................... 37
5.1 Stitch type .............................................................. 37
Coverstitch ................................................................... 37
Chainstitch ................................................................... 38
5.2 Stitch Chart ............................................................ 39
6 Machine settings .................................................. 40
6.1 Setting the Presser Foot Pressure ............................. 40
6.2 Adjusting the thread tension ................................... 40
6.3 Adjusting the Differential Feed ................................ 41
Default value "1" ......................................................... 42
Gathering "1.5 – 2" ..................................................... 42
Stretching "0.6" .......................................................... 43
6.4 Setting the Stitch Length ......................................... 43
7 Threading ............................................................. 44
7.1 Threading preparation ............................................ 44
7.2 Threading the Looper Thread .................................. 45
Treading the Chain Lopper Thread CL/purple ............... 46
Threading the Looper Thread with an auxiliary thread .. 48
Using the Threading Wire ............................................. 48
7.3 Threading the needle thread ................................... 49
Threading the left Coverstitch Needle Thread left LC/
yellow .......................................................................... 49

Table of Contents
42022-01 EN 5040062.0.04
Threading the center Coverstitch Needle Thread center
CC/green .................................................................... 50
Threading the right Coverstitch Needle Thread RC/blue
................................................................................... 51
7.4 Thread change ....................................................... 52
Knotting thick thread .................................................. 52
Changing the needle thread ....................................... 52
Changing the looper thread ........................................ 53
8 Sewing test .......................................................... 54
8.1 Perfoming a sewing test for an coverstitch ............. 54
8.2 Perfoming a sewing test for an chainstitch ............. 54
8.3 Optimizing stitches ................................................. 54
4-/3-Thread Coverstitch .............................................. 55
9 Practical Coverstitching ...................................... 56
9.1 Securing the stitch ................................................. 56
Securing cover- and chainstitches at the start of the
seam .......................................................................... 56
Securing Cover- and Chainstitches at the start of the
seam .......................................................................... 56
9.2 Undoing a stitch ..................................................... 57
Undoing Coverstitches ................................................ 57
Undoing Chainstitches ................................................ 57
9.3 Sewing a hem ........................................................ 57
9.4 Binding a seam ...................................................... 58
9.5 Topstitching seams ................................................. 58
9.6 Joining seams ......................................................... 58
9.7 Gathering a seam ................................................... 59
10 Appendix ............................................................. 60
10.1 Storing and transporting the machine .................... 60
Storing the machine ................................................... 60
Transporting the machine ........................................... 60
10.2 Maintenance and cleaning the machine ................. 60
Cleaning the machine ................................................. 60
Cleaning the Looper Area ........................................... 61
Cleaning the air threader pipes ................................... 62
Cleaning the suction feet ........................................... 62
Oiling the machine ..................................................... 62
10.3 Troubleshooting ..................................................... 63
10.4 Specifications ......................................................... 64

IMPORTANT SAFETY INSTRUCTIONS
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2022-01 EN 5040062.0.04
IMPORTANT SAFETY INSTRUCTIONS
Please be aware of the following basic safety instructions when using your
machine. Before using this machine, read instruction manual carefully.
DANGER
To protect against electric shock, the following instructions must be observed.
• Never leave the machine unattended when it is connected to the power
supply.
• Immediately after use and before cleaning, switch off the machine and
disconnect the power cable from the outlet.
In order to protect against injury, the following instructions must be adhered to.
• Do not look directly into the LED lamp with optical instruments
(e.g.magnifying glass).
• If the LED lamp is damaged or defective, have the LED lamp checked or
repaired at your local authorized bernette dealer.
• Switch off the machine before working in the needle area.
• Before starting the machine, attach all protection guards and close the
covers.
WARNING
To reduce the risk of burns, fire, electric shock or injury to persons, the following
instructions must be observed.
General facts
• This machine may only be used for the purpose described in this instruction
manual.
Working environment
• Do not use the machine outdoors.
• Only use the machine in dry rooms.
• Do not use the machine in a humid area.
• Do not use the machine in rooms where aerosol products (sprays) are being
used.
• Do not use the machine in rooms where oxygen is dispensed.

IMPORTANT SAFETY INSTRUCTIONS
62022-01 EN 5040062.0.04
Technical condition
• Never use the machine when it is damp.
• Do not use the machine if it is not working properly.
• Do not use the machine if a cable or the plug is damaged.
• Do not use the machine if it has been dropped, damaged or has fallen into
water.
• If the machine is damaged or does not work properly, have the machine
checked or repaired by your local authorized bernette dealer.
• Keep all ventilation openings of the machine and the foot control free of
lint, dust and loose cloth.
• Do not use the machine if the ventilation openings are blocked.
Accessories and Supplies
• Only use the accessories recommended by the manufacturer.
• Always use the original bernette Stitch Plate.
An incorrect stitch plate can result in needle breakage.
• Use only straight needles of good quality.
Bent or damaged needles can cause needle breakage.
• This machine is double-insulated (except for USA, Canada and Japan).
Use only identical replacement parts. See instructions for servicing of double-
insulated products.
• To lubricate the machine, only use the supplied overlocker oil.
Safety instructions
• While operating the machine, all protective inserts must be in place and all
covers must be closed.
Appropriate use
• The machine may be used, cleaned and maintained by children older than
eight or by people with reduced physical, sensory or mental capabilities or if
there is a lack of experience and knowledge as long as they have been given
instructions.
• Furthermore, these persons must be supervised while working with the
machine, and/or they must know the safe operation of the machine and be
aware of the resulting hazards.
• Children are not allowed to play with this machine.
• Special care should be taken when the machine is operated by or in the
presence of children.
• Only use the machine with the supplied power cable.

IMPORTANT SAFETY INSTRUCTIONS
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2022-01 EN 5040062.0.04
• USA and Canada only: Do not connect power plug NEMA 1-15 to circuits
exceeding 150 volt-to-ground.
• Only use this machine with the supplied foot control of type
4C-316/-326/-345.
• Never insert any objects into any openings of the machine.
• Do not place any objects on the foot control.
• While sewing, guide the fabric gently.
Pulling and pushing the fabric can cause needle breakage.
• Keep fingers away from all moving parts.
• Special care is required in the area of the Needle and the Looper.
• For activities in the needle area - such as threading the needle, changing the
needle, threading the looper or changing the presser foot - switch off the
machine.
• To switch off, set the power switch to «0».
• When protective covers are removed, when the machine is oiled or when
other cleaning and maintenance operations mentioned in this instruction
manual are carried out, switch off the machine and disconnect the power
plug from the outlet.
• Pull the plug out of the outlet by pulling on the plug. Do not pull on the
cable.

Important information
82022-01 EN 5040062.0.04
Important information
Availability of the instruction manual
The short manual is part of the machine.
• Keep the short manual of the machine in a suitable place near the machine and have it ready for
reference.
• The latest version of the detailed instruction manual can be downloaded at www.bernette.com.
• When passing on the machine to a third party, enclose the short manual of the machine.
Proper use
Your bernette machine is conceived and designed for private household use. It answers the purpose for
overlocking fabrics as it is decribed in this instruction manual. Any other use is not considered proper.
BERNINA assumes no liability for consequences resulting from improper use.
Equipment and scope of delivery
Example images are used in these operating instructions for the purposes of illustration. The machines shown
in the images and the accessories shown therefore do not always match the actual items included with your
machine. The supplied accessory can vary depending on the country of delivery. You can acquire any
accessories mentioned or shown that are not included in the scope of delivery as optional accessories from a
specialist bernette dealer. Further accessories can be found at www.bernette.com.
For technical reasons and in order to improve the product, changes may be made to the equipment of the
machine and the scope of delivery at any time and without prior notice.
Maintenance of double-insulated products
In a double-insulated product, two systems of insulation are provided instead of grounding. No grounding
means is provided on a double-insulated product nor should a means for grounding be added to the
product. Servicing a double-insulated product requires extreme care and knowledge of the system and
should only be done by qualified service personnel. Only original spare parts should be used for service and
repairs. A double-insulated product is marked with the words: «Double-Insulation »or «double-insulated».
The symbol may also be marked on the product.
Environmental Protection
BERNINA is committed to the protection of the environment. We strive to minimize the environmental impact
of our products by continuously improving product design and our technology of manufacturing.
The machine is labeled with the symbol of the crossed-out wastebin. This means that the machine should
not be disposed of in household waste when it is no longer needed. Improper disposal can result in
dangerous substances getting into the groundwater and thus into our food chain, damaging our health.
The machine must be returned free of charge to a nearby collection point for waste electrical and electronic
equipment or to a collection point for the reuse of the machine. Information on the collection points can be
obtained from your local administration. When purchasing a new machine, the dealer is obliged to take back
the old machine free of charge and dispose of it properly.
If the machine contains personal data, you are responsible for deleting the data yourself before returning the
machine.

Important information
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2022-01 EN 5040062.0.04
Explanation of symbols
DANGER Designates a danger with a high risk which can lead to serious injuries or even death unless it is avoided.
WARNING Designates a medium-risk hazard which can lead to serious injuries if not avoided.
CAUTION Designates a low-risk hazard which can lead to minor or moderate injuries if not avoided.
NOTICE Designates a hazard which can lead to material damage if not avoided.
You will find tips from bernette sewing experts next to this symbol.

My bernette
10 2022-01 EN 5040062.0.04
2 My bernette
2.1 Machine overview
Front view
1
2
3
5
6
7
8
10
12
4
9
11
13
1 Freearm Cover 8 Thread Tension Adjustment
2 Guide Rail 9 Thread Deflection Finger
3 Freearm 10 Thread Guiding Plate
4 Sewing Light 11 Coverstitch Insert
5 Thread Cutter 12 Threader Cover
6 Presser Foot Pressure Wheel 13 Suction feet
7 Needle Thread Take-up Lever Cover

My bernette
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Overview - Needle area
1
2
4
5
3
8
7
10
9
6
1 Stitch Plate 6 Thread Guide on the Headframe
2 Stitch Plate Screw 7 Thread Guide on the Needle Holder
3 Standard Coverstitch Presser Foot 8 Needle Clamp
4 Presser Foot Release Button 9 Needle Screws
5 Presser Foot Bar 10 Needles

My bernette
12 2022-01 EN 5040062.0.04
Overview Presser Foot
1
2
3
4
5
6
7
9
8
1 Presser Foot Sole 6 Shaft Groove
2 Presser Foot Sole Pin 7 Marking: Right Coverstitch Needle (RC)
3 Presser Foot Spring 8 Marking: Center Coverstitch Needle (CC)
4 Fixing Screw 9 Marking: Left Coverstitch Needle (LC)
5 Presser Foot shaft

My bernette
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Overview - Looper area
2
3
1
1 Feed Dog 3 Air Threader Pipes Chain Looper
2 Chain Looper

My bernette
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Overview Threading area
1
2
3
4
5
6
7
1 Threader Cover 5 Air Threader Nozzle
2 Threading Chart 6 Air Threader Lever
3 Coverstitch Insert 7 Accessories stored in the Threader Cover
4 Air Threader Connector On/Off

My bernette
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Overview - Side panel
11
12
9
8
7
2
6
5
10
4
1
3
13
1 Carry Handle 8 Differential Feed Dial
2 Retractable Thread Guide 9 Handwheel
3 Spool Pin 10 Air Vents
4 Spool Pin 11 Connection for Foot Control and Power
Cable
5 Needle Pad 12 Main Switch
6 Presser Foot Lifter 13 Connection for Knee Lifter (FHS)
7 Stitch Length Setting

My bernette
16 2022-01 EN 5040062.0.04
Symbols on the machine
The symbols on the machine are for your guidance and give assistance when adjusting settings and
threading the machine.
• Coverstitch Formation «CS»
• Chainstitch Formation «CL»
LC
(Left Coverstitch Needle)
Left Coverstitch Needle Thread
Thread Path yellow «CS»
CC
(Center Coverstitch Needle)
Center Coverstitch Needle
Thread
Thread Path green «CS»
RC
(Right Coverstitch Needle)
Right Coverstitch Needle Thread
Thread Path blue «CS»
CL
(Chain Looper)
Chain Looper
Thread Path purple «CL»
SL
(Stitch Length)
Stitch Length
DF
(Differential Feed)
Differential Feed
FHS
(Free Hand System)
Knee Lifter (Free Hand System)
Foot Pressure
Air Threader
Air Threader Connector On/Off

My bernette
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2.2 Overview - standard accessories
Included accessories
Visit www.bernette.comfor more accessories information.
Figure Name Purpose
Power Cable and Foot
Control Cable
To connect the machine with the power supply
system and the Foot Control.
To start and stop the machine.
To control the sewing speed.
Coverstitch Insert To protect the Looper Area.
Coverstitch Insert for Slide-on
Table
To protect the Looper Area.To increase the sewing
surface when the Slide-on Table is used.
Freearm Cover To extend the work surface.
Slide-on Table To increase the sewing surface.
Free Hand System (FHS) To raise and lower the presser foot.
Standard Coverstitch Presser
Foot
For all coverstitches and chainstitches.
For general sewing projects.
Retractable Thread Guide For an even unwinding of the thread from the
thread cones.
Accessories Box To store the supplied accessories as well as the
optional accessories.

My bernette
18 2022-01 EN 5040062.0.04
Accessories behind the Threader Cover
The most often used accessories while sewing are stored behind the Threader Cover on the machine, so it is
always quickly at hand.
Figure Name Purpose
Needle Set ELx705 CF Recommended needles for all-purpose use.
Screwdriver To loosen or tighten the fixing screws on the
needle holder.
Brush To clean the feed dog and the looper area.
Tweezers For gripping the thread in tight positions.
Needle Threader/
Inserter
To manually thread, insert and remove the needle.
Accessories Box
Figure Name Purpose
Overlocker Oil For oiling the looper components.
Spool Stabilizer (4x) To stabilize the thread cone on the thread stand.

My bernette
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Figure Name Purpose
Spool Net (4x) To support even unwinding of nylon, rayon, silk or
metallic threads from the spool.
Spool Disc (4x) To support the regular unwinding of the thread
from the spool.
Screwdriver To loosen/tighten the stitch plate screws.
CS Lock Tool To pull the needle threads and to secure the
stitches.
To separate the threads so that the sewing project
can be removed from or placed under the presser
foot.
Threading Wire To thread the looper threads manually in the air
threader pipe.
Decorative Thread
Guide
To sew with decorative threads for particularly
wide and long stitches, for seams and edge
finishing.

Setting up the machine
20 2022-01 EN 5040062.0.04
3 Setting up the machine
3.1 Working area
A solid table with a secure stand is a good prerequisite for optimal sewing results. Ergonomics around the
sewing table is important to protect the muscles and joints of the back, shoulder, arms and hands. The
recommendation for this includes matching the table height with the body posture. Avoid remaining in the
same position for long periods.
The machine can also be operated when standing.
> Place the machine on a solid table.
Correct sitting position
> Sit comfortably in front of the machine.
> Hold the arms bent a 90 ° across the table, with your fingertips to the machine.
– The fingertips should touch the stitch plate.
3.2 Connection and Switching on
Connecting the machine and foot control
> Insert the device plug (1) of the Foot Control/Power Cable into the connection for the Foot Control/
Power Cable.
> Insert the power plug (2) of the Foot Control/Power Cable into the socket.
Use of the power cable (only USA/Canada)
The machine has a polarized plug (one contact is wider than the other). To reduce the risk of electric shock,
the plug can only be plugged into the socket in one way. If the plug does not fit into the socket, turn the
plug. If it still does not fit, contact an electrician to install an appropriate outlet. Do not modify the plug in
any way.
Switching the machine and sewing light on/off