W6 WERTARBEIT N 656D Free Arm User manual

Manual
Overlocker
W6 N 656D Free Arm

2
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
Product name
Publisher
Preamble
Overlock W6 N 656D Free Arm
W6 WERTARBEIT Projektierungs- und Handelsgesellschaft mbH
Bredenbecker Straße 13 / D-30974 Wennigsen
Email: [email protected]
www.w6-wertarbeit.eu
This document is protected by copyright. All rights reserved. The document
may not, in whole or in part, be copied, reproduced, translated or reduced to
an electronic medium of machine-readable form without the explicit permis-
sion of W6 WERTARBEIT Projektierungs- und Handelsgesellschaft mbH.
Thank you very much for buying a W6 product.
We have included a comprehensive manual, so that you may easily learn
how to operate the machine and to help you familiarize yourself with the
machine and its features. Please register your machine on the Internet.
www.w6-wertarbeit.eu Select Service / Guarantee Registration. Moreover,
W6 WERTARBEIT offers the following options on its website for free. Please
access our website using www.w6-wertarbeit.eu and select “HELP”.
•Criteria for the optimal threading of a W6 N 656D Free Arm (4-min.
video).
•A tutorial video made specifically for the W6 N 656D Free Arm.
•Maintenance, tips and tricks for the W6 N 656D Free Arm.
•A visual selection of stitches and their use.
In addition to that, W6 WERTARBEIT offers a wide range of sewing projects
online.
Please read the manual and the safety instructions carefully
before operating the machine.
W6 Tip
Subscribing to the W6 newsletter will help you stay up to date on new
products and information as well as enable you to take advantage of
special offers and deals!
Enjoy your new sewing machine.
W6 WERTARBEIT
The W6 WERTARBEIT company headquarters are based in a deconsecrated church

Contents
Contents
3
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
1 Safetyinstructions.......................................................................................................... 5
1.1 Notes on operational safety ............................................................................................... 5
1.2 Instructions for use ............................................................................................................. 6
1.3 After sewing........................................................................................................................ 7
1.4 Tips for a long service life...................................................................................................... 7
1.5 What we expect from you ................................................................................................... 8
2 Assembling your overlocker........................................................................................................... 9
2.1 Unpacking .......................................................................................................................... 9
2.2 Setting up ......................................................................................................................... 10
2.3 Assembling your overlocker ............................................................................................ 10
2.4 Unplugging the the device from the mains........................................................................ 14
3Getting to know your overlocker........................................................................................ 15
3.1 Front view......................................................................................................................... 15
3.2 Side view .......................................................................................................................... 16
3.3 Electrical connections....................................................................................................... 17
3.4 View of the hook area (most important parts only)........................................................... 18
3.5 Why using W6 thread and needles is important............................................................... 18
3.6 Using thicker decorative yarn (special thread guide) ....................................................... 19
4 Standard accessories.................................................................................................................... 20
5Operating elements....................................................................................................................... 21
5.1 On and off switch.............................................................................................................. 21
5.2 Jack for the power supply and foot controller................................................................... 22
5.3 Power plug ....................................................................................................................... 22
5.4 Foot controller .................................................................................................................. 23
5.5 Extension table ................................................................................................................ 23
5.6 Opening and closing the front cover................................................................................. 24
5.6.1 Opening the front cover................................................................................. 24
5.6.2
5.7 Chaining finger ................................................................................................................. 24
5.8 Presser foot pressure dial ................................................................................................ 26
5.9 4 Thread tension dials .....................................................................................................26
5.10 Stitch length dial ............................................................................................................... 27
5.11 Adjusting the seam and cutting width............................................................................... 28
5.11.1 Setting the seam width by removing the left-hand needle ............................. 28
5.11.2 Setting the stitch width ................................................................................... 28
5.11.3 Ideal cutting width .......................................................................................... 29
5.12 Setting the differential feed dial ........................................................................................ 30
5.13 Hand wheel ...................................................................................................................... 31
6 Changing the presser foot ............................................................................................................ 32
7Changing needles ......................................................................................................................... 36
7.1 Checking needles............................................................................................................. 36
7.2 Removing needles............................................................................................................37
7.3 Inserting a needle............................................................................................................. 38
Closing the front cover.....................................................................................� 24

4
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
8Adjusting the upper knife.............................................................................................................. 41
8.1 Bringing the upper knife to the rest position ..................................................................... 41
8.2 Bringing the upper knife to the working position ............................................................... 42
9 Installing and removing the looper cover.................................................................................... 43
9.1 Installing the looper cover.................................................................................................43
9.2 Removing the looper cover.............................................................................................. 44
10 Threading........................................................................................................................................ 45
10.1 Diagram of the 4 thread paths .......................................................................................... 45
10.2 1. RED thread path (threading the upper looper located at the rear) ............................... 46
10.3 2. GREEN thread path (threading the lower looper located at the front) ...........................52
10.4 3. BLUE thread path (threading the right needle) ............................................................. 59
10.5 4. ORANGE thread path (threading the left needle) ......................................................... 65
10.6 Using the threading aid..................................................................................................... 71
10.7 The spool net .................................................................................................................... 73
10.8 Changing thread by knotting............................................................................................. 73
11 Chaining off | Finishing a seam ................................................................................................... 75
11.1 Overlock stitch .................................................................................................................. 75
11.2 Ending the seam............................................................................................................... 77
12 Stitch selection and thread tension ............................................................................................. 79
12.1 Stitch types and their use .................................................................................................80
13 Maintenance .................................................................................................................................... 85
13.1 Inspection by W6............................................................................................................... 85
13.2 Maintenance to be performed by the customer ................................................................. 86
13.2.1 Cleaning the overlocker.................................................................................. 86
13.2.2 Oiling the overlocker....................................................................................... 87
13.2.3 Exchanging the moving upper knife ............................................................... 88
13.3 Disposal ............................................................................................................................ 89
14 Help ................................................................................................................................................. 90
14.1 Troubleshooting ................................................................................................................ 90
14.2 Tips & tricks ...................................................................................................................... 92
14.2.1 Checking the thread quality............................................................................ 92
14.2.2 Inserting a new needle ................................................................................... 93
14.2.3 Checking the needle plate.............................................................................. 94
15 Technical data................................................................................................................................ 95
15.1 Key data............................................................................................................................ 95
15.2 Technical data.................................................................................................................. 95
15.3 EU Declaration of Conformity ........................................................................................... 97
16 Service information ....................................................................................................................... 98

Notes on operational safety
Safety instructions
5
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
1Safety instructions
In this chapter you will find information regarding the use of the operating
manual.
•Notes on operational safety (page 5)
•Instructions for use (page 6)
•After sewing (page 7)
•Tips for a long-life span (page 7)
•What we expect from you (page 8)
1.1 Notes on operational safety
The overlocker has been designed with utmost care and is safe to use.
Nevertheless, the overlocker can pose hazards:
•if it is not used in accordance with its intended use,
•if it is not used correctly,
•if it is operated under impermissible conditions.
Before commencing any work with the device, it is crucial that you read
the information and instructions provided below.

Instructions for use
Safety instructions
6
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
1.2 Instructions for use
Take note of the following points when handling the overlocker:
•When unpacking, take care to choose a secure surface on which to
unpack the overlocker safely.
•Keep animals and objects away from the area around the overlocker.
•Always use the overlocker on a sturdy, clean and flat surface. W6
WERTARBEIT offers a robust, noise-reducing underlay for your sewing
workstation as an optional accessory.
•Keep children away from the overlocker.
•Keep animals and objects away from the area around the ‹foot
controller›.
•Exchange defective or damaged parts of the overlocker immediately.
Use only original spare parts!
•Exchange needles regularly. Worn or damaged needles pose a hazard.
•Spare parts and tools must comply with the technical requirements laid
down by the manufacturer. This is always assured in the case of orig-
inal spare parts.
•Perform maintenance in the manner described in this manual.
•Observe the intervals for recurring maintenance work.
•Rectify faults only with the overlocker switched off. It is also
recommended to unplug the ‹power plug›.
•Never tamper with, dismantle or bypass the safety measures.
•Never deactivate the safety measures.
•Making constructional changes to the overlocker is strictly prohibited..
•Never use the overlocker in the open air where it is exposed to the
elements.
•Switch the overlocker off immediately in the event of a malfunction.
•W6 WERTARBEIT offers frequent sewers an annual inspection (at the
owner’s expense). Normal use requires regular inspections to be
performed every two to four years.

After sewing
Safety instructions 7
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
1.3 After sewing
Please perform the following tasks after sewing:
•Clean the overlocker and remove all dust, small pieces of thread and lint.
•Switch off the overlocker.
•Always unplug the ‹power plug›.
•Store the overlocker in such a way that it cannot fall.
•Always place the overlocker out of the reach of children and animals.
•Exchange needles regularly. Worn or damaged needles pose a hazard.
1.4 Tips for a long service life
To ensure a long service life, take note of the following instructions:
•Do not expose the overlocker to direct sunlight, moisture or high levels
of humidity.
•Clean and oil your overlocker at regular intervals. Perform these tasks
thoroughly and at least once a year or more frequently if the device is in
frequent use.
•Clean the overlocker using a dry or damp cloth only.
•Never use benzine, thinners or other chemical agents for cleaning the
overlocker.
•Do not subject the overlocker to strong vibrations.
•The overlocker is not designed for commercial use.
•Have the overlocker inspected by a W6 workshop (this may result in
additional costs).
•Frequent sewers should send the overlocker in for an annual inspection,
while an inspection every 2 to 4 years should be sufficient for normal
use.
To do so, contact W6 WERTARBEIT directly by email: info@w6-wertar-
beit.com.

What we expect from you
Safety instructions
8
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
1.5 What we expect from you
Specific knowledge and skills are required for working with this
device.
•You should be confident working with the overlocker.
•You should have read and understood this manual.
•Always have a clear head when working with the overlocker.
•Never work with the overlocker when under the influence of alcohol or
drugs.
•Take note of the package insert when taking medication.
•If you are pregnant, have someone help you with assembling and
moving the overlocker.
•Do not attempt to dismantle the overlocker, this should only be done
by a trained specialist, but keep in mind that you do need to carry out
the basic maintenance yourself.
•You are personally suited to operate the overlocker.
•In case of doubt, please contact our Service Department by e-mail at
[email protected]
•Only allow an authorised workshop to work on electrical components.
W6 WERTARBEIT also offers the following options on its website for free.
Please access our website using www.w6-wertarbeit.eu and select
“HELP”.
•Criteria for the optimal threading of a W6 N 656D Free Arm (4-min.
video).
•A tutorial video made specifically for the W6 N 656D Free Arm.
•Tips and tricks for the W6 N 656D Free Arm.
•A visual selection of stitches and their use.

Unpacking
Assembling your overlocker 9
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
2 Assembling your overlocker
In this chapter you will find information regarding the assembly of the over-
locker:
•Unpacking (page 9)
•Setting up (page 10)
•Assembling your overlocker (page 10)
•Unplugging the device from the mains (page 14)
2.1 Unpacking
During the course of using the device, you will be responsible for shipping
it to specialist workshops for inspection. To avoid any damage, please
send the overlocker in its original packaging. Therefore we recommend
you keep the packaging material, including the styrofoam. Please ensure
that all packaging material is stored beyond the reach of children.
DANGER
There is a risk of suffocation
The overlocker is delivered in a plastic bag. This plastic bag
may pose a suffocation hazard to children.
►Cut up the plastic bags.
►Take care that children do not play with the packaging material.
CAUTION
The overlocker is supplied with a needle installed
There is a risk of being pricked by the needle.
►Please mind the needles when unpacking.
Please follow the steps below:
1. Unpack the overlocker on a suitable surface.
2. Unpack the thread guide bar with the thread guide rack.
3. Cut up all plastic bags that are supplied with the overlocker.
4. Store the packaging material in a secure place beyond the reach of chil-
dren.
!Should you wish to dispose of it, do not simply throw the packaging
material away but send it for recycling.
» The overlocker has been unpacked

Setting up
Assembling your overlocker
10
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
2.2 Setting up
When setting up the overlocker, please pay attention to the following points:
•The supporting surface must be sturdy, non-slip and of adequate size.
•There should be adequate illumination for work.
•The overlocker's position should ensure a comfortable and
ergonomically sound posture when working.
•The device is to be placed beyond the reach of children and animals.
•It is not to be placed in direct sunlight.
•It is not to be exposed to high levels of humidity or moisture.
•It is not to be positioned near heaters or other sources of heat.
2.3 Assembling your overlocker
Prerequisite:
•The power cord is undamaged.
•There are no heavy objects on the cord.
•The cable is not exposed to high temperatures.
•The mains voltage is 230 Volt.
DANGER
Danger to life posed by electrical shock
The overlocker operates at low voltage. Improper connection poses a risk
of an electrical shock.
►Use only an easily accessible power socket as a power source.
►Do not operate multiple devices from a single power socket. There is a
risk of an overload.
►Do not unplug the power plug from the socket with wet hands.
►Do not plug the power plug into the socket with wet hands.
►Do not pull the power plug from the socket by the power cable.

Assembling your overlocker
Assembling your overlocker
11
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
Please follow the steps below:
1. Fasten the thread guide bar by means of the screw on the spool holder.
2. Position the two retaining hooks of the spool holder with the installed
thread guide bar precisely in front of the openings of the holder at the
rear of the overlocker.
3. Press the spool holder up to the housing of the overlocker and slide it to
the right as far as the stop.

Assembling your overlocker
Assembling your overlocker
12
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
4. Extend the three-part thread guide bar completely.
!In order to ensure that they are securely seated, ensure that the
three-part thread guide bar engages audibly when extended.
5. Plug the ‹machine plug› into the socket on the overlocker.
6. Plug the ‹power plug› into the power socket.

Assembling your overlocker
Assembling your overlocker 13
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
7. Set the ‹on and off switch› to the “ I “ (ON) position.
▼The overlocker is switched on.
▼The lighting is switched on.
?The work light of the overlocker does not light up?
The LED (light-emitting diode) may be damaged.
►Contact the W6 WERTARBEIT Support Department using the
contact form on our website.
?The overlocker does not sew?
The overlocker is not connected correctly.
►Switch the overlocker off again.
►Check all plug connections.
8. Slowly press the ‹foot controller› to start sewing.
!The further the foot controller is pressed, the faster the overlocker
sews.
9. Release the foot controller, when you wish to stop sewing.
10.Set the ‹on and off switch› to the “ 0 ” (OFF), to switch off the overlocker.
»The overlocker is now connected and ready for
operation.
W6 Tip
The waste bin is only installed once the four threads have been
threaded.

Unplugging the device from the mains
Assembling your overlocker
14
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
2.4 Unplugging the device from the mains
The overlocker must be switched off at the ‹on and off switch› and the
power plug unplugged from the power socket when:
•the overlocker is going to remain unsupervised;
•
•
you exchange the needle or thread;
the covers are removed;
a power failure occurs during use;
•in the event of a storm.

Front view
Getting to know your overlocker
15
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
3Getting to know your overlocker:
This chapter will familiarize you with the various parts of the overlocker
and what they're called.
•Front view (page 15)
•Side view (page 16)
•Electrical connections (page 17)
•View of the hook area (most important parts only) (page 18)
•Why using W6 thread and needles is important (page 18)
3.1 Front view
Components of the overlocker - Front view
Parts of the overlocker
No. Designation
1Thread guide bar with thread guide rack
2Handle
3Thread tension dial - orange / orange thread path (left needle)
4Thread tension dial - blue / blue thread path (right needle)
5Thread tension dial red (upper looper)
6Thread tension dial green (lower looper)

Side view
Getting to know your overlocker
16
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
3.2 Side view
Components of the overlocker - Side view
7Work surface
8Needle plate
9Extension table
10 Stationary lower knife
11 Adjustable cutting width
12 Front cover
13 Power and illumination switch
14 Machine socket
15 Hand wheel
16 Differential feed dial
17 Stitch length dial
18 Spool holder
19 Spool centring (only for large spools)
20 Spool pin
Parts of the overlocker (Cont.)
No. Designation
5
4
1
3
2

Electrical connections Getting
to know your overlocker
17
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
3.3 Electrical connections
Electrical connections
Parts of the overlocker
No. Designation
1Presser foot pressure dial
2Thread cutter
3Presser foot lifter, the tension discs are opened simultaneously
4Movable upper knife
5Lever for switching to rolled hem
Parts of the overlocker
No. Designation
1 On and off switch
2Jack for the power supply and foot controller
3Power plug
4Foot controller

View of the hook area (most important parts only)
Getting to know your overlocker
18
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
3.4 View of the hook area (most important parts
only)
Components of the overlocker - Rear view
3.5 Why using W6 thread and needles is impor-
tant
Even the best overlocker can only sew properly if the thread and needle
are compatible with each other. W6 WERTARBEIT offers compatible,
high-quality products for your overlocker.
Cheap, low quality threads can cause problems during sewing. Therefore,
we recommend using thread tension-friendly and lint-free W6
WERTARBEIT thread. This thread is suitable for sewing, embroidery and
overcasting machines.
An unsuitable needle may break easily, cause threads to break, damage
the sewing yarn or the cause the overlocker to skip stitches. Apart from
this, an unsuitable needle produces unsightly seams, because they force
the thread through the weave instead of allowing it to slide through
smoothly. For your own saftey, always use original W6 WERTARBEIT
needles.
Parts of the overlocker
No. Designation
1
Upper looper (red thread path)
2
Lower looper (green thread path)

Using thicker decorative yarn (special thread guide)
Getting to know your overlocker
19
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
3.6 Using thicker decorative yarn (special
thread guide)
Please use the special thread guide in combination with the red and green
threading path.
Assembling the special thread guide
Assembling the special thread guide:
Insert the special thread guide to the left and to the right of the metal
plates (red and green threading path).
Threading the decorative yarns:
Thread directly from the thread guide bar through the left and right circular
holes of the special thread guide.
ATTENTION:
Please don‘t thread the decorative yarn through the metal plates. Use the
special thread guide instead.

Standard accessories
20
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
4Standard accessories
The following accessories are supplied with the overlocker:
Supplied accessories
Accessories
No. Designation
1 Screwdriver, large
2Oiler
3Felt washer (4x)
4Upper knife
5Spool net (4x)
6Special thread guide
7Set of Needles
8Brush
9Needle threader
10 Allen key, small
11 Tweezers
12 Looper cover
13 Accessory bag
14 Spool centring device (4x)
15 Cover, folded
16 Waste bin (to be placed below the overlock machine)