Dürkopp Adler 971-01 User manual

Operating Instructions
971-01

All rights reserved.
Property of Dürkopp Adler GmbH and protected by copyright. Any reuse of these contents, in-
cluding extracts, is prohibited without the prior written approval of Dürkopp Adler GmbH.
Copyright © Dürkopp Adler GmbH 2020
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE

Table of Contents
Operating Instructions 971 - 06.0 - 12/2020 1
1 About these instructions ...........................................................3
1.1 For whom are these instructions intended?..................................3
1.2 Representation conventions – symbols and characters...............3
1.3 Other documents..........................................................................4
1.4 Liability..........................................................................................5
2 Safety...........................................................................................7
2.1 Basic safety instructions...............................................................7
2.2 Signal words and symbols used in warnings................................8
3 Machine description.................................................................11
3.1 Elements on the sewing head ....................................................11
3.2 Elements on the cutting head.....................................................12
3.3 Elements on the frame ...............................................................14
3.4 Elements on the control box.......................................................15
3.5 Elements on the stacker.............................................................16
4 Operation...................................................................................17
4.1 Preparing the machine for operation..........................................17
4.2 Switching on the machine...........................................................17
4.3 Threading the needle thread ......................................................18
4.4 Threading the looper thread.......................................................19
4.5 Adjusting the thread tensions.....................................................21
4.6 Removing a thread break ...........................................................22
4.7 Setting the sewing foot height ....................................................23
4.8 Swinging the sewing head in and out.........................................24
4.9 Swinging the cutting head in or out ............................................25
4.10 Preparing, starting and interrupting the automatic sequence.....27
4.10.1 Replacing the adjustable material holders..................................27
4.10.2 Changing the size of the adjustable material holders.................28
4.10.3 Adjusting the depth stop of the adjustable material holders.......29
4.10.4 Extending the opening time of the clamp ...................................30
4.10.5 Inserting the sewing material and starting the automatic
sequence....................................................................................30
5 Maintenance..............................................................................33
5.1 Cleaning .....................................................................................34
5.2 Lubricating..................................................................................36
5.3 Servicing the pneumatic system.................................................38
5.3.1 Setting the operating pressure ...................................................38
5.3.2 Draining the water condensation................................................39
5.3.3 Cleaning the filter element..........................................................40
5.4 Parts list......................................................................................41
6 Setup..........................................................................................43
6.1 Components of the sewing unit ..................................................43
6.2 Adjusting the sewing head heigth and the cutting head height ..44
6.3 Installing the material holders.....................................................44
6.4 Installing the reel stand...............................................................45
6.5 Aligning the sewing unit..............................................................45
6.6 Connecting the side channel blower...........................................46
6.7 Connecting the stacker to the sewing unit..................................47

Table of Contents
2Operating Instructions 971 - 06.0 - 12/2020
6.8 Electrical connection...................................................................48
6.8.1 Setting the motor circuit breaker.................................................48
6.8.2 Checking the direction of rotation...............................................49
6.9 Pneumatic connection ................................................................50
6.9.1 Fitting the compressed air maintenance unit..............................50
6.9.2 Setting the operating pressure ...................................................50
7 Starting up for the first time ....................................................52
8 Decommissioning.....................................................................53
9 Disposal.....................................................................................55
10 Troubleshooting .......................................................................57
10.1 Customer Service.......................................................................57
10.2 Errors in sewing process ............................................................57
11 Technical data...........................................................................61
12 Appendix ...................................................................................63

About these instructions
Operating Instructions 971 - 06.0 - 12/2020 3
1 About these instructions
These instructions for the 971 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 (S. 57).
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:
• Operators:
This group is familiar with the machine and has access to the inst-
ructions. Specifically, chapter Operation (S. 17)is important for
the operators.
• Specialists:
This group has the appropriate technical training for performing
maintenance or repairing malfunctions. Specifically, the chapter
Setup (S. 43)is important for specialists.
Service Instructions are supplied separately.
With regard to minimum qualificationand other requirements to be met by
personnel, please also follow the chapter Safety (S. 7).
1.2 Representation conventions – symbols and characters
Variousinformationintheseinstructions isrepresentedorhighlightedbythe
following characters in order to facilitate easy and quick understanding:
Proper setting
Specifies proper setting.
Disturbances
Specifies the disturbances that can occur due to an incorrect setting.
Cover
Specifies which covers must be removed in order to access the compo-
nents to be set.

About these instructions
4Operating Instructions 971 - 06.0 - 12/2020
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:
1. First step
2. 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 (S. 7).
Location
information If no other clear location informationis used in a figure, indications ofright
or left are always from the user's point of view.
1.3 Other documents
The machine includes components from other manufacturers. Each ma-
nufacturer has performed a hazard assessment for these purchased parts
and confirmed their design compliance with applicable European and na-
tional regulations. The proper use of the built-in components is described
in the corresponding manufacturer's instructions.
1.
2.
…
•


About these instructions
Operating Instructions 971 - 06.0 - 12/2020 5
1.4 Liability
All information and notes in these instructions have been compiled in ac-
cordance with the latest technology and the applicable standards and re-
gulations.
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 forbreakage 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 werefound whenthe damage wasdiscovered. Thiswill ensure
any claims against the transport company.
Report all other complaints to Dürkopp Adler immediately after receiving
the product.

About these instructions
6Operating Instructions 971 - 06.0 - 12/2020

Safety
Operating Instructions 971 - 06.0 - 12/2020 7
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 location atall times.
Work on live components and equipment is prohibited. Exceptions are de-
fined 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 Followthe country-specificsafetyandaccidentpreventionregulationsand
the legal regulations concerning industrial safety and the protection of the
environment.
Allthewarnings andsafetysigns on themachinemustalways be 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
• carry out maintenance work and repairs
• perform work on electrical equipment
Only authorized persons may work on the machine and must first have un-
derstood these instructions.

Safety
8Operating Instructions 971 - 06.0 - 12/2020
Operation Inspect the machine while in use for any externally visible damage.
Stop working if you notice any changes to the machine. Report any chan-
ges 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 ba-
sed 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
Operating Instructions 971 - 06.0 - 12/2020 9
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 seri-
ous 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
10 Operating Instructions 971 - 06.0 - 12/2020
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.

Machine description
Operating Instructions 971 - 06.0 - 12/2020 11
3 Machine description
3.1 Elements on the sewing head
Fig. 1: Elements on the sewing head (1)
(1) - Knurled screw for the sewing foot pres-
sure
(2) - Needle thread regulator
(3) - Needle thread monitor
(4) - Needle
(5) - Flap
(6) - Thread monitor
(7) - Oil level sight
(8) - Thread monitor LEDs
(9) - Guide plate
(10) - Motor
(11) - Looper thread tension
(12) - Inspection glass for sewing head oil
(13) - Needle thread tension
(14) - Needle thread guide
①
②
③
④
⑤
⑥
⑦⑧ ⑨
⑩
⑪⑫⑬⑭

Machine description
12 Operating Instructions 971 - 06.0 - 12/2020
Fig. 2: Elemente am Nähkopf (2)
3.2 Elements on the cutting head
Fig. 3: Elements on the cutting head (1)
(15) - Rotary knob for the sewing foot stroke
(16) - Plastic disc: pull the magnetic roller
down in order to swing the sewing
head out
(17) - Magnet: creates a magnetic field for
the magnetic roller
(18) - Transport roll to set the correct needle
thread quantity
(1) - Oil pot for the moving parts in the ma-
chine head
(2) - Weight
(3) - Oil reservoir for top blade holder and
rotating parts
(4) - Sliding block for the parallelism of the
blade with the seam contour
(5) - Motor for the cutter and the magnetic
roller
⑰
⑱
⑮⑯
①④⑤
②③

Machine description
Operating Instructions 971 - 06.0 - 12/2020 13
Fig. 4: Elements on the cutting head (2)
(6) - Blow pipe for the sewing material
(7) - Blow pipe for the chain
(8) - Bottom blade
(9) - Top blade
(10) - Sliding block
⑨
⑥
⑦
⑩
⑧

Machine description
14 Operating Instructions 971 - 06.0 - 12/2020
3.3 Elements on the frame
Fig. 5: Elements on the frame
(1) - Compressed air gun
(2) - Pressure controller with pressure gage
(3) - Left pedal
(4) - Rotary knob for the speed of the tzurn-
table
(5) - Right pedal
(6) - Main switch
①
②
③
④
⑤
⑥

Machine description
Operating Instructions 971 - 06.0 - 12/2020 15
3.4 Elements on the control box
Fig. 6: Elemente am Steuerkasten
(1) - Motor circuit breaker
①

Machine description
16 Operating Instructions 971 - 06.0 - 12/2020
3.5 Elements on the stacker
Fig. 7: Elements on the stacker
(1) - Looper for sewing material transport
(2) - Connecting plate between the
material holder and the rack of the
stacker
(3) - Magazine receiving the material
parts
(4) - Lever
(5) - Solenoid valve box
(6) - Fastening rail for the stacker cover
(7) - Stacker cover
(8) - Rack
①⑧
②
③
④
⑤
⑥
⑦

Operation
Operating Instructions 971 - 06.0 - 12/2020 17
4 Operation
4.1 Preparing the machine for operation
• Changing the needle
• Threading the needle thread
• Winding the bobbin thread
• Replacing the bobbin thread reel
• Thread tension
• Setting the needle thread tension
• Setting the bobbin thread tension
4.2 Switching on the machine
Fig. 8: Switching on the machine
To switch on the machine:
1. Turn the main switch from position 0to position I.
The machine starts up.
The control panel starts up.
To switch off the machine:
1. Turn the main switch from position Ito position 0.
The machine switches off.

Operation
18 Operating Instructions 971 - 06.0 - 12/2020
4.3 Threading the needle thread
Fig. 9: Threading the needle thread (1)
To thread the needle thread:
1. Place the spool of thread on the thread reel holder (2).
2. Guide the thread alternately through the guide eyelets of the take-up
arm (1).
Fig. 10: Threading the needle thrad (2)
3. Feed the thread through the needle thread tensioner (5) and thread
guides (4).
WARNING
Risk of injury from sharp parts!
Punctures possible.
Switch off the machine before threading.
(1) - Take-up arm (2) - Thread reel holder
①
②
(3) - Thread lever
(4) - Thread guides (5) - Needle thread tensioner
③④⑤