DURKOPP ADLER 669 ECO, 669 CLASSIC Operating Instructions Manual
669 ECO / CLASSIC
Operating Instructions
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE
All rights reserved.
Property of Dürkopp Adler AG and protected by copyright.
Any reuse of these contents, including extracts, is prohibited without the
prior written approval of Dürkopp Adler AG.
Copyright © Dürkopp Adler AG 2019
Table of Contents
1 About these instructions ....................................................................5
1.1 For whom are these instructions intended? .......................................... 5
1.2 Representation conventions – symbols and characters........................6
1.3 Other documents...................................................................................7
1.4 Liability .................................................................................................. 8
2 Safety....................................................................................................9
2.1 Basic safety instructions........................................................................9
2.2 Signal words and symbols used in warnings.......................................10
3 Machine description..........................................................................15
3.1 Components of the machine ...............................................................15
3.2 Proper use...........................................................................................17
3.3 Declaration of Conformity.................................................................... 18
4 Operation ...........................................................................................19
4.1 Preparing the machine for operation ...................................................19
4.2 Inserting or changing the needle.........................................................20
4.3 Threading the needle thread ............................................................... 22
4.4 Winding the bobbin thread .................................................................. 23
4.5 Changing the bobbin ...........................................................................24
4.6 Thread tension ....................................................................................26
4.6.1 Setting the needle thread tension........................................................ 27
4.6.2 Function of the main thread tension and the additional thread
tension depending on the sewing foot lift (optional) ............................29
4.6.3 Function of the additional thread tension depending on the stroke
adjustment and the Speedomat (optional) ..........................................30
4.6.4 Opening the needle thread tension .....................................................31
4.6.5 Switching on and off the supplementary thread tension (optional)......32
4.6.6 Setting the hook thread tension...........................................................33
4.7 Setting the needle thread regulator ..................................................... 34
4.8 Sewing feet.......................................................................................... 35
4.8.1 Lifting the sewing feet.......................................................................... 35
4.8.2 Locking the sewing feet at top dead center .........................................36
4.8.3 Setting the sewing foot pressure.........................................................37
4.8.4 Setting the sewing foot stroke ............................................................. 38
4.9 Setting the stitch length....................................................................... 42
4.10 Buttons on the machine arm ...............................................................43
4.11 Tilting the machine head .....................................................................45
4.12 Folding down the tabletop (optional) ...................................................46
4.13 Sewing.................................................................................................48
4.13.1 Sewing with machines using the F
IR clutch positioning drive ............. 48
4.13.2 Sewing with machines using the Efka DC1550/DA321G
positioning drive ..................................................................................49
Operating Instructions 669 - 00.0 - 08/2019 1
Table of Contents
5 Maintenance....................................................................................... 53
5.1 Cleaning .............................................................................................. 54
5.2 Lubricating...........................................................................................56
5.2.1 Checking the oil level in the machine head .........................................57
5.3 Servicing the pneumatic system..........................................................58
5.3.1 Setting the operating pressure ............................................................ 58
5.3.2 Draining the water condensation......................................................... 59
5.3.3 Cleaning the filter element...................................................................60
5.4 Checking the V-belt tension ................................................................ 61
5.5 Parts list...............................................................................................62
6 Setup ..................................................................................................63
6.1 Checking the scope of delivery ...........................................................63
6.2 Removing the transport locks..............................................................63
6.3 Assembling the stand ..........................................................................64
6.3.1 Assembling the stand MG 55-3 ...........................................................64
6.3.2 Assembling the stand MG 56-3 ...........................................................65
6.4 Table top .............................................................................................66
6.4.1 Completing the tabletop for stand MG 55-3 with FIR clutch motor...... 66
6.4.2 Completing the tabletop for stand MG 55-3 with direct drive ..............68
6.4.3 Completing the tabletop for stand MG 56-3 with FIR clutch motor...... 69
6.4.4 Completing the tabletop for stand MG 56-3 with direct drive ..............71
6.4.5 Assembling the tabletop to the stand MG 55-3 ...................................72
6.4.6 Assembling the tabletop to the stand MG 56-3 ...................................73
6.4.7 Assemble support on table plate with cut-out (stand MG 55-3) .......... 74
6.5 Setting the working height ...................................................................75
6.6 Putting on the machine head...............................................................77
6.7 Assembling the operating panel ..........................................................78
6.8 Assembling the sewing light ................................................................79
6.9 Setpoint device for the Direct drive .....................................................81
6.9.1 Assembling the setpoint device to the stand MG 55-3 and aligning
the pedal.............................................................................................. 81
6.9.2 Assembling the setpoint device to the stand MG 56-3 and aligning
the pedal.............................................................................................. 82
6.10 Putting on and tightening the V-belt (clutch motor FIR) ......................83
6.11 Assembling the knee switch ................................................................85
6.12 Assembling the Direct Drive ................................................................ 87
.12.1 Assembling the motor and putting on the V-belt .................................87
6
6.12.2 Connecting the Hall sensor .................................................................88
6.13 Electrical connection ...........................................................................90
6.13.1 Creating the equipotential bonding...................................................... 90
6.13.2 Connecting the clutch motor FIR to the mains voltage........................ 93
6.13.3 Rotational direction of the clutch motor FIR ........................................93
6.13.4 Connecting the sewing light transformator .......................................... 95
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Table of Contents
6.13.5 Connecting the DC positioning drive to the mains voltage .................. 96
6.13.6 Rotational direction of the DC positioning drive .................................. 98
6.13.7 Machine-specific parameters ............................................................100
6.13.8 Connecting the sewing light ..............................................................101
6.14 Pneumatic connection .......................................................................102
6.14.1 Assembling the compressed air maintenance unit ............................103
6.14.2 Setting the operating pressure ..........................................................103
6.15 Performing a test run.........................................................................104
7 Decommissioning ...........................................................................105
8 Disposal ...........................................................................................107
9 Troubleshooting .............................................................................. 109
9.1 Customer Service..............................................................................109
9.2 Errors in sewing process ...................................................................110
10 Technical data .................................................................................113
10.1 Data and characteristic values ..........................................................113
10.2 Requirements for trouble-free operation ...........................................113
Operating Instructions 669 - 00.0 - 08/2019 3
Table of Contents
4 Operating Instructions 669 - 00.0 - 08/2019
About these instructions
1 About these instructions
These instructions have been prepared with utmost care.
They contain information and notes intended to ensure long-term
and reliable operation.
Should you notice any discrepancies or if you have improvement
requests, then we would be glad to receive your feedback through
Customer Service ( p. 109).
Consider the instructions part of the product and store them in a
place where they are readily available.
1.1 For whom are these instructions intended?
These instructions are intended for:
Service Instructions are supplied separately.
With regard to minimum qualification and other requirements to be
met by personnel, please also follow the chapter Safety ( p. 9).
• Operators:
This group is familiar with the machine and has access to
the instructions. Specifically, chapter
Operation ( p. 19) is important for the operators.
•Specialists:
This group has the appropriate technical training for performing maintenance or repairing malfunctions. Specifically, the
chapter Setup ( p. 63) is important for specialists.
Operating Instructions 669 - 00.0 - 08/2019 5
About these instructions
1.
2.
...
•
1.2 Representation conventions – symbols and characters
Various information in these instructions is represented or highlighted by the following characters in order to facilitate easy and
quick understanding:
Proper setting
Specifies proper setting.
Disturbances
Specifies the disturbances that can occur from an incorrect setting.
Cover
Specifies which covers must be disassembled in order to access
the components to be set.
Steps to be performed when operating the machine (sewing
and equipping)
Steps to be performed for service, maintenance, and
installation
Steps to be performed via the software control panel
The individual steps are numbered:
First step
Second step
The steps must always be followed in the specified order.
Lists are marked by bullet points.
Result of performing an operation
Change to the machine or on the display/control panel.
Important
Special attention must be paid to this point when performing a step.
6 Operating Instructions 669 - 00.0 - 08/2019
About these instructions
Information
Additional information, e.g. on alternative operating options.
Order
Specifies the work to be performed before or after a setting.
References
Reference to another section in these instructions.
Safety Important warnings for the user of the machine are specifically
marked. Since safety is of particular importance, hazard symbols,
levels of danger and their signal words are described separately
in the chapter Safety ( p. 9).
Location
information
If no other clear location information is used in a figure, indications
of right or left are always from the user's point of view.
1.3 Other documents
The machine includes components from other manufacturers.
Each manufacturer has performed a hazard assessment for these
purchased parts and confirmed their design compliance with
applicable European and national regulations. The proper use of
the built-in components is described in the corresponding manufacturer's instructions.
Operating Instructions 669 - 00.0 - 08/2019 7
About these instructions
1.4 Liability
All information and notes in these instructions have been compiled
in accordance with the latest technology and the applicable standards and regulations.
Dürkopp Adler cannot be held liable for any damage resulting
from:
• Breakage and damage during transport
• Failure to observe these instructions
• Improper use
• Unauthorized modifications to the machine
• Use of untrained personnel
• Use of unapproved parts
Transport
Dürkopp Adler cannot be held liable for breakage and transport
damages. Inspect the delivery immediately upon receiving it.
Report any damage to the last transport manager. This also
applies if the packaging is not damaged.
Leave machines, equipment and packaging material in the condition in which they were found when the damage was discovered.
This will ensure any claims against the transport company.
Report all other complaints to Dürkopp Adler immediately after
receiving the product.
8 Operating Instructions 669 - 00.0 - 08/2019
Safety
2 Safety
This chapter contains basic information for your safety. Read the
instructions carefully before setting up or operating the machine.
Make sure to follow the information included in the safety instructions. Failure to do so can result in serious injury and property
damage.
2.1 Basic safety instructions
The machine may only be used as described in these instructions.
The instructions should be available at the machine's location at
all times.
Work on live components and equipment is prohibited.
Exceptions are defined in the DIN VDE 0105.
For the following work, switch off the machine at the main switch
or disconnect the power plug:
• Replacing the needle or other sewing tools
• Leaving the workstation
• Performing maintenance work and repairs
• Threading
Missing or faulty parts could impair safety and damage the
machine. Only use original parts from the manufacturer.
Transport Use a lifting carriage or forklift to transport the machine. Raise the
machine max. 20 mm and secure it to prevent it from slipping off.
Setup The connecting cable must have a power plug approved in the
relevant country. The power plug may only be assembled to the
power cable by qualified specialists.
Obligations
of the operator
Operating Instructions 669 - 00.0 - 08/2019 9
Follow the country-specific safety and accident prevention regulations and the legal regulations concerning industrial safety and
the protection of the environment.
Safety
All the warnings and safety signs on the machine must always be
in legible condition. Do not remove!
Missing or damaged warnings and safety signs must be replaced
immediately.
Requirements
to be met by
the personnel
Only qualified specialists may:
• set up the machine / put the machine in operation
• perform maintenance work and repairs
• perform work on electrical equipment
Only authorized persons may work on the machine and must first
have understood these instructions.
Operation Check the machine during operating for any externally visible
damage. Stop working if you notice any changes to the machine.
Report any changes to your supervisor. Do not use a damaged
machine any further.
Safety
equipment
Safety equipment should not be removed or deactivated. If it is
essential to remove or deactivate safety equipment for a repair
operation, it must be assembled and put back into operation
immediately afterward.
2.2 Signal words and symbols used in warnings
Warnings in the text are distinguished by color bars. The color
scheme is based on the severity of the danger. Signal words
indicate the severity of the danger.
Signal words Signal words and the hazard they describe:
Signal word Meaning
DANGER (with hazard symbol)
If ignored, fatal or serious injury will result
WARNING (with hazard symbol)
10 Operating Instructions 669 - 00.0 - 08/2019
If ignored, fatal or serious injury can result
Safety
CAUTION (with hazard symbol)
If ignored, moderate or minor injury can result
CAUTION (with hazard symbol)
If ignored, environmental damage can result
NOTICE (without hazard symbol)
If ignored, property damage can result
Symbols The following symbols indicate the type of danger to personnel:
Symbol Type of danger
General
Electric shock
Puncture
Crushing
Environmental damage
Operating Instructions 669 - 00.0 - 08/2019 11
Examples Examples of the layout of warnings in the text:
DANGER
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that will result
in serious injury or even death if ignored.
WARNING
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in serious or even fatal injury if ignored.
Safety
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in moderate or minor injury if the warning is ignored.
12 Operating Instructions 669 - 00.0 - 08/2019
Safety
NOTICE
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in property damage if ignored.
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in environmental damage if ignored.
Operating Instructions 669 - 00.0 - 08/2019 13
Safety
14 Operating Instructions 669 - 00.0 - 08/2019
Machine description
①
②
③
④
⑤
⑥
⑦
3 Machine description
3.1 Components of the machine
Fig. 1: Components of the machine (1), with stand MG 55-3
(1) - Stitch regulator
(2) - Knee switch
(3) - Pedal
(4) - Stand MG 55-3
(5) - Stitch length adjusting wheel
(6) - Reel stand
(7) - Winder
Operating Instructions 669 - 00.0 - 08/2019 15
Machine description
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
Fig. 2: Components of the machine (2), with stand MG 56-3
(1) - Operating panel
(2) - Stitch regulator
(3) - Knee switch
(4) - Pedal
(5) - Compressed air maintenance
unit
(6) - Stand MG 56-3
(7) - Control
(8) - Stitch length adjusting wheels
(9) - Reel stand
(10)- Winder
16 Operating Instructions 669 - 00.0 - 08/2019
Machine description
3.2 Proper use
WARNING
Risk of injury from live, moving and cutting
parts as well as from sharp parts!
Improper use can result in electric shock, crushing,
cutting and punctures.
Follow all instructions provided.
NOTICE
Non-observance will lead to property damage!
Improper use can result in material damage at the machine.
Follow all instructions provided.
The machine may only be used with sewing material that satisfies
the requirements of the specific application at hand.
The machine is intended only for use with dry sewing material.
The sewing material must not contain any hard objects.
The needle thicknesses permissible for the machine are listed in
the Technical data ( p. 43) chapter.
The seam must be completed with a thread that satisfies the
requirements of the specific application at hand.
The machine is intended for industrial use.
Operating Instructions 669 - 00.0 - 08/2019 17
Machine description
The machine may only be set up and operated in dry conditions on
well-maintained premises. If the machine is operated on premises
that are not dry and well-maintained, then further measures may
be required which must be compatible with DIN EN 60204-31.
Only authorized persons may work on the machine.
Dürkopp Adler cannot be held liable for damages resulting from
improper use.
3.3 Declaration of Conformity
The machine complies with European regulations ensuring health,
safety, and environmental protection as specified in the declaration of conformity or in the declaration of incorporation.
18 Operating Instructions 669 - 00.0 - 08/2019
Operation
4 Operation
The operating sequence consists of several different steps.
Fault-free operation is necessary in order to achieve a good
sewing result.
4.1 Preparing the machine for operation
WARNING
Risk of injury from moving, cutting and sharp
parts!
Crushing, cutting and punctures are possible.
If possible, make preparations only when the
machine is switched off.
Complete the following steps in preparation of sewing before
starting to work:
• Inserting/changing the needle
• Threading the needle thread
• Inserting and winding on the hook thread
• Setting the thread tension
Operating Instructions 669 - 00.0 - 08/2019 19
4.2 Inserting or changing the needle
①
③
②
①②
WARNING
Risk of injury from sharp and moving parts!
Puncture possible.
Switch off the machine bevore changing the
needle.
NOTICE
Property damage may occur!
The insertion of a thinner needle can lead to skipped stitches
or damage to the thread!
The insertion of a thicker needle can result in damage to the
hook tip or the needle!
When switching to a different needle, adjust the clearance
between the hook and the needle.
Fig. 3: Inserting or changing the needle
Operation
(1) - Needle bar
(2) - Screw
20 Operating Instructions 669 - 00.0 - 08/2019
(3) - Groove
Operation
To insert or change the needle:
1. Turn the handwheel until the needle bar (1) has reached its
highest position.
2. Loosen screw (2).
3. Pull the needle out from under the needle bar (1).
4. Push in the new needle until it reaches the limit stop in the
hole for the needle bar (1).
Important
The groove (3) must be pointing towards the hoo.
5. Tighten screw (2).
Operating Instructions 669 - 00.0 - 08/2019 21
4.3 Threading the needle thread
⑥
⑦
⑧
⑨
⑩
⑪
①
②
③
④
⑤
WARNING
Risk of injury from sharp and moving parts!
Puncture or crushing possible.
Switch off the machine before threading the
needle thread.
Fig. 4: Thrading the needle thread
Operation
(1) - Guide
(2) - Guide
(3) - Pre-tensioner
(4) - Supplementary tensioner
(5) - Main tensioner
(6) - Guide
To thread the needle thread:
1. Put the reel on the reel stand and guide the needle thread
through the thread guide.
The thread guide must be perpendicular to the reel.
22 Operating Instructions 669 - 00.0 - 08/2019
(7) - Guide
(8) - Thread take-u p lev er
(9) - Guide
(10)- Needle thread regulator
(11)- Thread lever
Operation
⑤⑥
①②②③④
2. Insert the thread through guide (1) and guide (2).
3. Pass the thread clockwise around the pre-tensioner (3).
4. Pass the thread counter-clockwise around the supplementary
tensioner (4).
5. Pass the thread clockwise around main tensioner (5).
6. Pull the thread under the thread take-up lever (8) and threafd
through the needle thread regulator (10) to the thread
lever (11).
7. Pass the thread through the needle thread lever (11) and
through guides (9) and (6) on the needle bar.
8. Pass the thread through the eye of the needle.
4.4 Winding the bobbin thread
Fig. 5: Winding the bobbin thread
(1) - Winder
(2) - bobbin winder lever
(3) - Guide
To wind the bobbin thread:
(4) - Tensioner
(5) - Guide
(6) - Blade
1. Put the reel on the reel stand. Guide the bobbin thread through
the thread guide.
2. Pull the thread through guide (5), tensioner (4), and guide (3).
3. Clamp the thread behind blade (6) and tear off.
Operating Instructions 669 - 00.0 - 08/2019 23
Operation
①②③
4. Put the bobbin on the winder (1).
The thread does not need to be hand wound around the bobbin.
5. Press the bobbin winder lever (2) in the bobbin.
6. Sew.
The bobbin winder lever (2) ends the operation as soon as
the bobbin is full.
The bobbin winder (1) remains in position so that the blade (6)
is properly positioned
7. Take off the full bobbin. Clamp the thread behind the blade (6)
and tear off.
8. Put an empty bobbin on the bobbin winder for the next winding
process and press the bobbin winder lever (2) into the bobbin
4.5 Changing the bobbin
WARNING
Risk of injury from sharp and moving parts!
Puncture or crushing possible.
Switch off the machine before changing the
bobbin.
Fig. 6: Changing the bobbin (1)
(1) - Hook cover
(2) - Bobbin case retainer
24 Operating Instructions 669 - 00.0 - 08/2019
(3) - Bobbin enclosure
Operation
②④⑤
③⑥⑦
To change the bobbin:
1. Raise the needle bar into its high position.
2. Pull out the hook cover (1) and fold dow.
3. Lift up the bobbin case retainer (2).
4. Take out the upper part of the bobbin enclosure (3) with the
bobbin.
5. Remove the empty bobbin from the upper part of the bobbin
enclosure (3).
Fig. 7: Changing the bobbin (2)
(2) - Bobbi n case retainer
(3) - Bobbin enclosure
(4) - Bobbin
(5) - Hole
(6) - Tension spring
(7) - Slot
6. Put a full bobbin in the upper part of the bobbin enclosure (3).
Please note the rotational direction of the bobbin.
The rotation is correct when the bobbin turns in the opposite
direction of the pulling direction of the thread.
7. Pull the hook thread through the slot (7) under the tension
spring (6) and then through the hole (5).
8. Pull out the tension spring (6) from the bobbin enclosure (3)
about 5 cm.
When the thread is being pulled out, the bobbin must rotate
in the direction shown by the arrow.
9. Replace bobbin enclosure (3).
10. Close bobbin case retainer (2).
11. Close the hook cover (1).
Operating Instructions 669 - 00.0 - 08/2019 25
Operation
②
①
③
4.6 Thread tension
Together with the hook thread tension, the needle thread tension
influences the final seam pattern. With thin sewing material,
excessive thread tension can lead to undesired gathering and
thread breakage.
Proper setting
If the tension of needle thread and hook thread is identical, the
thread interlacing lies in the middle of the sewing material.
Set the needle thread tension so that the desired seam pattern is
achieved with the lowest possible tension.
Abb. 8: Thread tension
(1) - Iden tical needle thread and hook thread tension
(2) - Hook t hread tension higher than needle thread tension
(3) - Needle thread tension higher than hook thread tension
26 Operating Instructions 669 - 00.0 - 08/2019
Operation
①
②③⑤④
4.6.1 Setting the needle thread tension
Fig. 9: Setting the needle thread tension
(1) - Pre-Tensioner
(2) - Main tensioner
(3) - Supplementary tensioner
Pre-tensioner
When the main thread tensioner (2) and the supplementary
tensioner (3) are open, there must still be a slight tension remaining on the needle thread.
This residual tension is created by the pre-tensioner (1).
The pre-tensioner (1) influences both the length of the cut needle
thread and the starter thread for the next seam
To set the basic adjustment:
1. Turn adjusting wheel (4) until its front side is flush with the
bolt (5).
To set a shorter starter thread:
1. Turn the adjusting wheel (4) clockwise.
To set a longer starter thread:
1. Turn the adjusting wheel (4) counter-clockwise.
(4) - Adjusting wheel
(5) - Bolt
Operating Instructions 669 - 00.0 - 08/2019 27
Operation
Main tensioner
The main tensioner (2) should be adjusted as little as possible.
The threads’ cross-over point should be in the centre of the material. If the thread tension is too strong, crimping and thread
tearing canoccur when working with a thin material.
To set the main tensioner:
1. Adjust the main tensioner 2 so that you attain a consistent
stitch pattern.
• Increasing the tension: turn the adjusting wheel clockwise
• Decrease the tension: turn the adjusting wheel counterclockwise
Supplementary tensioner
The switchable supplementary tensioner (3) is used for quick
changes to the thread tension (for example, when working with
thicker seams).
To set the supplementary tensioner:
1. The supplementary tension (3) should be set lower than the
main tension (2).
28 Operating Instructions 669 - 00.0 - 08/2019
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