Duerkopp Adler 670 Operating instructions

670/680
Service Instructions

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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 2017
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE

Table of contents
Service Instructions 670/680 - 00.0 - 07/2017 1
1 About these instructions ...........................................................5
1.1 For whom are these instructions intended?..................................5
1.2 Representation conventions – symbols and characters...............5
1.3 Other documents..........................................................................7
1.4 Liability..........................................................................................7
2 Safety...........................................................................................9
2.1 Basic safety instructions...............................................................9
2.2 Signal words and symbols used in warnings..............................10
3 Working basis...........................................................................13
3.1 Order of the settings...................................................................13
3.2 Laying the cable guide................................................................13
3.3 Gages.........................................................................................14
3.4 Removing the covers..................................................................16
3.4.1 Access to the underside of the machine.....................................16
3.4.2 Removing the arm cover ............................................................17
3.4.3 Removing the head cover...........................................................17
3.4.4 Removing the valve cover..........................................................18
3.4.5 Removing the rear cover............................................................19
3.5 Flats on shafts ............................................................................19
3.6 Locking the machine in place.....................................................20
3.7 Setting the handwheel into position............................................22
4 Setting the handwheel scale ...................................................23
5 Positioning the arm shaft.........................................................24
6 Positioning the toothed belt wheels.......................................25
6.1 Positioning the upper toothed belt wheel....................................25
6.2 Positioning the lower toothed belt wheel....................................26
7 Stitch length adjusting wheels................................................28
7.1 Setting the upper stitch length adjusting wheel..........................28
7.2 Setting the lower stitch length adjusting wheel...........................31
7.3 Setting the stitch length limit.......................................................32
7.4 Setting the eccentric for the forward and backward stitches......33
7.5 Setting the feed dog bar.............................................................34
7.6 Setting the initial position of the feed gear..................................35
8 Needle bar linkage....................................................................37
8.1 Aligning the needle bar linkage sideways...................................37
8.2 Setting transmission lever ..........................................................39
8.3 Setting the thread lever ..............................................................40
9 Post bed feed............................................................................41
9.1 Aligning the post bed feed..........................................................41
9.2 Setting the feed dog feed movement..........................................43
9.3 Setting the feed dog stroke movement.......................................44
9.4 Setting the feed dog height.........................................................45
9.5 Setting the compensating weight................................................46
9.6 Setting the needle penetration in the feed direction...................47

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2Service Instructions 670/680 - 00.0 - 07/2017
10 Position of the hook and needle .............................................48
10.1 Setting the hook height...............................................................48
10.2 Setting the loop stroke................................................................49
10.3 Setting the needle bar height......................................................50
10.4 Setting the hook side clearance .................................................51
10.5 Setting the needle guard ............................................................52
11 Setting the bobbin case lifter ..................................................53
11.1 Setting the lifting gap..................................................................53
11.2 Setting the timing for opening.....................................................54
12 Sewing feet................................................................................55
12.1 Setting the initial position of the lifting gear................................56
12.2 Setting an even sewing foot stroke.............................................57
12.3 Setting the stroke movement for the feeding foot.......................58
12.4 Setting the sewing foot pressure................................................59
12.5 Setting the sewing foot lifting height...........................................60
12.5.1 Setting the mechanical sewing foot lifting...................................60
12.5.2 Setting the sewing foot lifting height...........................................62
13 Setting the needle thread tension...........................................64
14 Winder .......................................................................................66
14.1 Setting the winder.......................................................................66
14.2 Setting the hook thread guide.....................................................69
15 Thread cutter.............................................................................70
15.1 Setting the height of the thread-pulling knife..............................71
15.2 Setting the cutoff curve...............................................................72
15.3 Setting the swivel range of the thread-pulling knife....................73
15.4 Setting the cutting pressure........................................................74
15.5 Setting the hook thread clamp....................................................75
15.6 Setting point in time for cutting...................................................76
16 Setting the potentiometer........................................................77
17 Edge cutter (only 680)..............................................................79
17.1 Assembling and setting the blade...............................................80
17.1.1 Assembling the counter blade....................................................80
17.1.2 Assembling and setting the movable blade................................80
17.1.3 Setting the cutting pressure and blade position..........................82
17.2 Setting the timing of the blade stroke movement .......................83
17.3 Setting the stroke height of the blade.........................................84
18 Stitch loosening unit................................................................85
18.1 Setting the swivel movement timing...........................................86
18.2 Setting the position of the swivel movement ..............................88
18.3 Setting the height of the stitch loosening finger..........................89
18.4 Setting the height stop for the stitch loosening unit....................90
18.5 Setting the drive ratio of the stitch loosening
finger when raising the sewing foot:...........................................91
19 Setting the automatic material thickness detection.............. 92

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Service Instructions 670/680 - 00.0 - 07/2017 3
20 Programming ............................................................................95
21 Maintenance............................................................................101
21.1 Cleaning ...................................................................................102
21.2 Lubricating................................................................................104
21.3 Servicing the pneumatic system...............................................106
21.3.1 Setting the operating pressure .................................................106
21.3.2 Draining the water condensation..............................................107
21.3.3 Cleaning the filter element........................................................108
21.4 Lubricating movable bolt on the edge cutter device.................109
21.5 Parts list....................................................................................109
22 Decommissioning...................................................................111
23 Disposal...................................................................................113
24 Troubleshooting .....................................................................115
24.1 Customer Service.....................................................................115
24.2 Messages of the software.........................................................115
24.3 Errors in sewing process ..........................................................121
25 Technical data.........................................................................123
26 Appendix ................................................................................. 125

Table of contents
4Service Instructions 670/680 - 00.0 - 07/2017

About these instructions
Service Instructions 670/680 - 00.0 - 07/2017 5
1 About these instructions
These instructions have been prepared with utmost care. They contain in-
formation 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. 115).
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:
• Specialists:
This group has the appropriate technical training for performing
maintenance or repairing malfunctions.
With regard to minimum qualificationand other requirements to be met by
personnel, please also follow the chapter Safety (p. 9).
1.2 Representation conventions – symbols and characters
Variousinformationintheseinstructionsisrepresentedorhighlightedbythe
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 com-
ponents to be set.

About these instructions
6Service Instructions 670/680 - 00.0 - 07/2017
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.
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 informationis used in a figure, indications of right
or left are always from the user's point of view.
1.
2.
…
•


About these instructions
Service Instructions 670/680 - 00.0 - 07/2017 7
1.3 Other documents
The machine includes components from other manufacturers. Each manu-
facturerhasperformeda hazardassessment forthesepurchased partsand
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.
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 damagewasdiscovered. This will ensure
any claims against the transport company.
Report all other complaints to Dürkopp Adler immediately after receiving
the product.

About these instructions
8Service Instructions 670/680 - 00.0 - 07/2017

Safety
Service Instructions 670/680 - 00.0 - 07/2017 9
2 Safety
This chapter contains basic information for your safety. Read the instruc-
tions 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.
These instructions must be available at the machine's locationat 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 Followthecountry-specificsafetyandaccidentpreventionregulationsand
the legal regulations concerning industrial safety and the protection of the
environment.
Allthe warningsand safety signson themachinemustalwaysbe inlegible
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
• 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.

Safety
10 Service Instructions 670/680 - 00.0 - 07/2017
Operation Check the machine during operating for any externally visible damage.
Stop workingifyounoticeanychangestothemachine.Reportanychanges
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:
Symbols The following symbols indicate the type of danger to personnel:
Signal word Meaning
DANGER (with hazard symbol)
If ignored, fatal or serious injury will result
WARNING (with hazard symbol)
If ignored, fatal or serious injury can result
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
Symbol Type of danger
General
Electric shock

Safety
Service Instructions 670/680 - 00.0 - 07/2017 11
Examples Examples of the layout of warnings in the text:
This is what a warning looks like for a hazard that will result in serious
injury or even death if ignored.
This is what a warning looks like for a hazard that could result in
serious or even fatal injury if ignored.
This is what a warning looks like for a hazard that could result in
moderate or minor injury if the warning is ignored.
Puncture
Crushing
Environmental damage
Symbol Type of danger
DANGER
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
WARNING
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.

Safety
12 Service Instructions 670/680 - 00.0 - 07/2017
This is what a warning looks like for a hazard that could result in
environmental damage if ignored.
This is what a warning looks like for a hazard that could result in pro-
perty damage if ignored.
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
NOTICE
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.

Working basis
Service Instructions 670/680 - 00.0 - 07/2017 13
3 Working basis
3.1 Order of the settings
Order
The setting positions for the machine are interdependent.
Always comply with the order of individual setting steps as specified.
It is absolutely essential that you follow all notices regarding prerequisites
and subsequent settings that are marked with in the margin.
3.2 Laying the cable guide
Ensure that all cables are laid in the machine such that the function of mo-
ving parts is not hampered.
To lay the cable guide:
1. Lay any excess cabling neatly in proper cable snakes.
2. Bind together the cable loops with cable ties.
Important
Tie loops wherever possible to fixed parts.
The cables must be secured firmly.
3. Cut off any overlapping cable ties.
NOTICE
Property damage may occur!
Risk of machine damage from incorrect order.
It is essential to follow the working order specified in these
instructions.
NOTICE
Property damage may occur!
Excess cables can impair the functioning of moving machine parts.
This impairs the sewing function and can result in damage.
Lay excess cable as described above.

Working basis
14 Service Instructions 670/680 - 00.0 - 07/2017
3.3 Gages
Gage Reference
Locking peg
• Locking/unplugging the machine
Setting gage (0868 290113)
• Setting the needle bar linkage
Setting gage (0868 290153)
• Setting the post bed feed
Setting gage (0808 290163)
• Setting the post bed feed
Setting gage (0868 290184)
• Positioning the sliding shaft

Working basis
Service Instructions 670/680 - 00.0 - 07/2017 15
Setting gage (0868 290020)
• Setting transmission lever
Setting gage (0868 290184)
• Setting the needle bar linkage
• Setting the post bed feed
Auxiliary gage (0667 295050)
• Setting the basic setting for
mechanical stitch adjustment
Gage Reference

Working basis
16 Service Instructions 670/680 - 00.0 - 07/2017
3.4 Removing the covers
For many settings, you will have to remove the machine covers first in
order to access the components.
This chapter describes how to remove and then assemble the individual
covers again. The text for each type of setting work then specifies only the
cover that needs to be removed at that particular time.
3.4.1 Access to the underside of the machine
Cover
To access the componentson the underside of the machine,swivel up the
machine head.
To tilt the machine head:
1. Tilt the machine head as far as it will go.
Do NOT tilt the machine on the control panel.
WARNING
Risk of injury from moving parts!
Crushing possible.
Switch off the machine before removing covers.
WARNING
Risk of injury from sharp parts!
Punctures possible.
Switch off the machine before removing covers.

Working basis
Service Instructions 670/680 - 00.0 - 07/2017 17
3.4.2 Removing the arm cover
Abb. 1: Removing the arm cover
To remove the arm cover:
1. Loosen the screws (2).
2. Remove the arm cover (1).
3.4.3 Removing the head cover
Abb. 2: Removing the head cover
(1) - Arm cover (2) - Screws
①②
(1) - Head cover (2) - Screws
①
②

Working basis
18 Service Instructions 670/680 - 00.0 - 07/2017
To remove the head cover:
1. Loosen the screws (2).
2. Remove the head cover (1).
3.4.4 Removing the valve cover
Important
When removing and placing the valve cover, be sure not to pull off any
cables.
Abb. 3: Removing the valve cover
To remove the valve cover:
1. Loosen the screws (1).
2. Remove the valve cover (2).
(1) - Screws (2) - Valve cover
①
②