DURKOPP ADLER 971-01 Owner's manual

971-01

Special sewing machine

Property of Dürkopp Adler AG and protected by copyright. Any reuse of these contents,

including extracts, is prohibited without the written approval in advance of Dürkopp Adler AG.

Contents

Operating Instructions 971 Version 00.0 - 03/2014 1

1 About these operating instructions .......................................... 3

1.1 Scope of application of the operating instructions ........................ 3

1.2 For whom are these operating instructions intended?.................. 3

1.3 Representational conventions – Symbols and characters............ 3

1.4 Other documents .......................................................................... 5

1.5 Liability.......................................................................................... 5

1.5.1 Transportation............................................................................... 5

1.5.2 Intended use................................................................................. 5

2 Performance description ........................................................... 7

2.1 Features........................................................................................ 7

2.2 Declaration of conformity.............................................................. 7

2.3 Additional equipment .................................................................... 8

2.4 Technical data .............................................................................. 8

3 Safety instructions ................................................................... 11

3.1 Basic safety instructions ............................................................. 11

3.2 Signal words and symbols used in warnings ..............................12

4 Device description.................................................................... 15

4.1 Elements on the sewing head..................................................... 15

4.2 Elements on the cutting head ..................................................... 17

4.2.1 Elements on the cutter with top and bottom blades.................... 18

4.3 Elements on the frame................................................................ 19

4.4 Elements on the control box ....................................................... 21

4.5 Elements on the stacker ............................................................. 22

5 Operation................................................................................... 23

5.1 Threading the needle thread....................................................... 23

5.2 Threading the looper thread ....................................................... 24

5.3 Adjusting the thread tensions ..................................................... 25

5.4 Removing a thread break ........................................................... 25

5.5 Setting the sewing foot height..................................................... 26

5.6 Preparing, starting and interrupting the automatic sequence ..... 27

5.6.1 Replacing the adjustable material holders.................................. 27

5.6.2 Changing the size of the adjustable material holders.................28

5.6.3 Inserting the sewing material and starting the

automatic sequence.................................................................... 29

5.6.4 Extending the opening time of the clamp.................................... 29

5.6.5 Automatic sequence ................................................................... 30

5.7 Various processes ...................................................................... 31

5.7.1 Swinging the sewing head in and out ......................................... 31

5.7.2 Swinging the cutting head in or out............................................. 33

5.8 Maintenance ............................................................................... 34

5.8.1 Cleaning and inspection ............................................................. 34

5.8.2 Lubricating .................................................................................. 36

5.9 Customer service........................................................................ 38

6 Set-up......................................................................................... 39

6.1 Components of the sewing unit .................................................. 39

6.2 Installing the sewing head on the base machine........................40

6.3 Installing the cutting head on the base machine......................... 41

Contents

2Operating Instructions 971 Version 00.0 - 03/2014

6.4 Installing the material holders..................................................... 42

6.5 Installing the reel stand............................................................... 43

6.6 Aligning the sewing unit.............................................................. 43

6.7 Connecting the stacker to the sewing unit..................................43

6.8 Electrical connection of the sewing unit...................................... 44

6.8.1 Setting the motor circuit breaker................................................. 44

6.8.2 Checking the direction of rotation ............................................... 45

6.9 Pneumatic connection ................................................................ 45

7 Starting up for the first time .................................................... 47

8 Disposal..................................................................................... 49

9 Appendix ................................................................................... 51

About these operating instructions

Operating Instructions 971 Version 00.0 - 03/2014 3

1 About these operating instructions

These operating instructions for the 971-01 sewing unit have been

compiled with the utmost care. They contain information and notes to

make long-term and reliable operation possible.

Should you notice any discrepancies or if you have improvement requests,

then we would be glad to receive your feedback,  5.9 Customer service,

pg. 38.

Please regard these operating instructions as part of the product and keep

them in a safe place where they can be easily accessed. Read the operating

instructions completely prior to using the machine for the first time. Only

pass the product on to third parties together with the operating instructions.

1.1 Scope of application of the operating instructions

These operating instructions describe the set-up and intended use of the

971-01 sewing unit.

1.2 For whom are these operating instructions intended?

The operating instructions are intended for:

• Operating personnel:

This group of employees has been trained in operating the machine and

can access the operating instructions. Specifically,  5 Operation,

pg. 23 is important for this group of employees.

• Specialized staff:

This group of employees has the appropriate technical training allowing

them to perform maintenance on the sewing unit or to repair faults.

Specifically,  6 Set-up, pg. 39 is important for the specialized staff.

Service instructions are supplied separately.

With regard to minimum qualification and other requirements to be met

by the personnel, please also refer to  3 Safety instructions, pg. 11.

1.3 Representational conventions – Symbols and characters

Various items of information are depicted or highlighted in these operating

instructions by the following characters to make them easier to

understand:

Correct setting

Indicates the correct setting.

About these operating instructions

4Operating Instructions 971 Version 00.0 - 03/2014

Faults

Indicates faults that can occur due to an incorrect setting.

Steps to be performed when operating the machine (sewing and

equipping)

Steps to be performed for servicing, maintenance and installation

Steps to be performed via the software control panel

The individual steps are numbered:

First step

Second step

The sequence of the steps must always be followed.

Lists are identified by bullet points.

Result of performing an operation

Change to the machine or in the display.

Important

Special attention must be paid to this point when performing a step.

Information

Additional information, e.g. on alternative operating possibilities.

Sequence

Specifies the work to be performed before or after a setting.

Reference

 A reference is provided to another place in the text.

Safety Important warnings for the user of the machine are specifically marked.

Because safety constitutes an area of major importance, hazard symbols,

levels of risk, and their signal words are described separately in

 3 Safety instructions.

Location

information

Information on where something is positioned using the terms "right"

or "left" must always be regarded from the operator's point of view if the

figure gives no other obvious indication for determining the location.

1.

2.

...

•



About these operating instructions

Operating Instructions 971 Version 00.0 - 03/2014 5

1.4 Other documents

The device contains built-in components from other manufacturers. The

respective manufacturers have carried out hazard assessments for these

purchased parts and confirmed compliance of the design with the applicable

European and national regulations. The intended use of the built-in

components is described in the corresponding manuals of the manufacturers.

1.5 Liability

All information and notes in these operating instructions have been

compiled in accordance with the latest technology and the applicable

standards and regulations.

The manufacturer cannot be held liable for any damage due to:

• Damage during transport

• Failure to observe the operating instructions

• Improper use

• Unauthorized modifications to the machine

• The deployment of untrained personnel

• Using unapproved spare parts

1.5.1 Transportation

Dürkopp Adler cannot be held liable for any damage during transport.

Check the delivered product immediately after receiving it. Report any

damage to the last transport manager. This also applies if the packaging

is not damaged.

Keep the machines, devices and packaging material in the condition they

were at the time when the damage was identified. This secures any claims

against the transport company.

Report all other complaints to Dürkopp Adler immediately after receiving

the product.

1.5.2 Intended use

The Dürkopp Adler 971-01 is for sewing very light to moderately heavy

material.

The machine is only intended for processing dry sewing material. The

material must contain no hard objects.

The seam is generally created with sewing threads made of textile fibers

of sizes 80/2 Nm (synthetic) or 140/3 Nm (core spun thread). If other

threads are to be used, the resultant risks must be assessed beforehand

and corresponding safety measures taken.

The sewing machine is intended for industrial use.

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

About these operating instructions

6Operating Instructions 971 Version 00.0 - 03/2014

must be compatible with EN 60204-31:1999.

Only authorized/trained persons may work on the machine.

The manufacturer will not be held liable for damage resulting from

improper use.

Danger due to high voltage, crushing and

sharp objects.

Improper use can result in injuries.

Please follow all instructions provided.

WARNING

Improper use could result in material damage.

Please follow all instructions provided.

ATTENTION

Performance description

Operating Instructions 971 Version 00.0 - 03/2014 7

2 Performance description

The Dürkopp Adler 971-01 is a rotary machine for sewing cuffs.

2.1 Features

The rotation concept enables an overlapped mode of operation and thus

yields a high volume output. Through optimal workplace design, everything

is within easy reach and a high level of operating comfort is assured.

The 971-01 has work stations for inserting or feeding the sewing material,

for sewing, for cutting excess material ends and for stacking the sewn

pieces. These are loaded via a turntable, to which the individual material

holders are secured. The size of these can be adjusted when sewing cuffs.

The speed of rotation can be adjusted steplessly and can be adapted to

the relevant requirements.

The double chain stitch sewing head of the 971-01 is fitted with a needle

and looper thread monitor, which stops the sewing machine automatically

should the thread break or run out.

Parallel cutting and separating of the thread chain is performed by the

cutting head. The cutting distance can be changed using corresponding

part sets.

To remove cutting waste, suction systems with one-sided or two-sided

suction are available. The corresponding air compressor is available

in different voltage versions.

2.2 Declaration of conformity

The machine complies with the European regulations specified

in the declaration of conformity or in the installation declaration.

Performance description

8Operating Instructions 971 Version 00.0 - 03/2014

2.3 Additional equipment

Using a flexible system of additional equipment, the sewing unit can be

equipped optimally and cost-effectively to suit the relevant application.

 = Standard equipment

 = Optional extension

2.4 Technical data

Order number Additional equipment 971-01

0971 457924 Material holder for cuffs 

0971 458034 Segment set for cuffs 

0971 454220 Control template for cuffs 

0971 452444 Clamp set for cuffs 

0971 458114 Control cam addition for lapping a corner 

0971 458124 Control cam addition for cuff corners 

0550 447529 Suction system with collecting bins to the right and left

of the cutter 

B2400739.50 Vacuum pump SV8.130/1-01 EW 

0971 427604 Stacker 

0797 003031 Pressure line 

9880 971012 Power supply device 3 x 380-420V + N 50Hz 

9880 971013 Power supply device 3 x 220-240V 60Hz 

Technical data Model

Sewing stitch type 401

Looper type Crossline

Number of needles 1

Needle system 971-B/1cf

Needle strength [Nm] 80-110

Sewing thread strength (core spun thread) 80/20-120/2

Sewing thread strength (polyester) 120/2

Performance description

Operating Instructions 971 Version 00.0 - 03/2014 9

Looper thread strength (core spun thread) 120/-140/2

Looper thread strength (polyester, endless) 120/2

Number of stitches on delivery [rpm] 2800

Maximum number of stitches [rpm] 2800

Stitch length [mm] 2

Cutting distance [mm] 3.5 - 4.5 - 5.5

Cuff length [mm] 220-350

Cuff width, maximum [mm] 140

Smallest seam radius [mm] 1.5

Size adjustment length, maximum [mm] 80

Operating pressure [bar] 5

Air consumption approx. [L/min.] 100

Length, width, height [mm] 2000 x 2000 x 1400

Weight [kg] 555

Technical data Model

Performance description

10 Operating Instructions 971 Version 00.0 - 03/2014

Safety instructions

Operating Instructions 971 Version 00.0 - 03/2014 11

3 Safety instructions

This section contains basic instructions 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 damage to the machine.

3.1 Basic safety instructions

The machine may only be used as described in these operating

instructions.

The operating instructions must be available at the machine's location

at all times.

Work on live components and equipment is prohibited. Exceptions are

defined in the specifications in DIN VDE 0105.

For the following work, the machine must be disconnected from the power

supply using the main switch or by disconnecting the power plug:

• Replacing the needle or other sewing tools

• Leaving the workplace

• Performing maintenance work and repairs

• Threading

Incorrect or faulty spare parts could impair safety and damage the

machine. Therefore only use original spare parts from the manufacturer.

Transportation Use a lifting carriage or forklift to transport the machine. Raise the

machine max. 20 mm and secure it against slipping off.

Set-up The connecting cable must have a power plug approved in the specific

country. The power plug may only be connected to the power cable

by a qualified specialist.

Operator's

obligations

Observe the country-specific safety and accident prevention regulations

and the legal regulations concerning industrial safety and the protection

of the environment.

All warnings and safety signs on the machine must always be in legible

condition and may not be removed. Missing or damaged labels must

be replaced immediately.

Safety instructions

12 Operating Instructions 971 Version 00.0 - 03/2014

Requirements to

be met by the

personnel

The machine may only be set up by qualified specialists.

Maintenance work and repairs may only be carried out by qualified

specialists.

Work on electrical equipment may only be carried out by qualified

specialists.

Only authorized persons may work on the machine. Every person who

works on the machine must have read the operating instructions first.

Operation Inspect the machine while in use for any externally visible damage. Interrupt

your work if you notice any changes to the machine. Report any changes

to your supervisor. A damaged machine must not be used any further.

Safety equipment Safety equipment may not be removed or put out of service. If this cannot

be avoided for a repair operation, the safety equipment must be refitted

and put back into service immediately afterward.

3.2 Signal words and symbols used in warnings

Warnings in the text are distinguished by color bars. The color scheme

is oriented towards the severity of the danger. Signal words specify the

severity of a danger:

Signal words Signal words and the hazard they describe:

Signal word Hazard

DANGER Resulting in death or serious injury.

WARNING Death or serious injury possible.

CAUTION Moderate to minor injuries possible.

ATTENTION Material damage possible.

Safety instructions

Operating Instructions 971 Version 00.0 - 03/2014 13

Symbols In the case of danger to personnel, the following symbols indicate the type

of hazard:

Examples Examples of the layout of the warnings in the text:

Symbol Type of danger

General danger

Danger due to electric shock

Danger due to sharp objects

Danger due to crushing

Type and source of the danger

Consequences in the event of noncompliance

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 the

warning is not complied with.

DANGER

Type and source of the danger

Consequences in the event of noncompliance

Measures for avoiding the danger

This is what a warning looks like for a hazard that

could result in serious injury or even death if the

warning is not complied with.

WARNING

Safety instructions

14 Operating Instructions 971 Version 00.0 - 03/2014

Type and source of the danger

Consequences in the event of noncompliance

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 not complied with.

CAUTION

Type and source of the danger

Measures for avoiding the danger

This is what a warning looks like for a hazard that

could result in environmental damage if the

warning is not complied with.

CAUTION

Type and source of the danger

Measures for avoiding the danger

This is what a warning looks like for a hazard that could result

in material damage if the warning is not complied with.

ATTENTION

Device description

Operating Instructions 971 Version 00.0 - 03/2014 15

4 Device description

4.1 Elements on the sewing head

Fig. 1: Elements

Number Designation Function

1 Knurled screw Setting the sewing foot pressure

2 Thread regulator To set the correct needle thread quantity

3 Thread monitor Reports a needle thread break

4 Needle 971-B-1 system

5 Cover plate Thread take-up cover, remove to thread.

6 Flap Covers the looper area, open out to thread.

7 Thread monitor Reports looper thread break

8 Oil level sight Displays oil level in the oil sump

9 LEDs Display which thread monitor is signaling an error.

10 Guide plate Thread guide for looper thread

11 Motor Drive motor for the sewing head

12 Rotary knob Adjusts the looper thread tension

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Device description

16 Operating Instructions 971 Version 00.0 - 03/2014

Fig. 2: Sewing head

13 Inspection glass To check the oil supply to the sewing head

14 Rotary knob Adjusts the needle thread tension

15 Thread guide Guides the needle thread

Number Designation Function

16 Rotary knob To set the sewing foot stroke position

17 Transport roller To set the correct needle thread quantity

18 Plastic disc To pull the magnetic roller down in order to swing the

sewing head out

19 Magnet Creates a magnetic field for the magnetic roller

Number Designation Function

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Device description

Operating Instructions 971 Version 00.0 - 03/2014 17

4.2 Elements on the cutting head

Fig. 3: Cutting head

Fig. 4: Cutting head

Number Designation Function

1 Oil pot Lubricates all the moving parts in the head.

2 Motor Drives the cutter and the magnetic roller.

3 Weight Presses sliding block 5 of the shearing head sideways

into the fabric support surface, so that the knife is always

parallel to the seam contour.

4 Oil reservoir Supplies top blade holder and the rotating parts with oil.

The reservoir must always be filled with oil. If required,

top up oil with grade DA-10.

5 Sliding block Using the sliding block ensures the correct parallelism

of the blade with the seam contour.

Device description

18 Operating Instructions 971 Version 00.0 - 03/2014

4.2.1 Elements on the cutter with top and bottom blades

Number Designation Function

6 Blow pipe Blows the sewing material into the cutting position

7 Blow pipe Blows the chain into the cutting position.

Number Designation Function

8/9 Top and bottom

blades

Cut the sewing material at the selected distance from the

course of the seam

10 Sliding block Presses shearing head sideways into the fabric support

surface, so that the blade is always parallel to the seam

contour.

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DURKOPP ADLER 971-01 Owner's manual

DURKOPP ADLER 971-01 Owner's manual

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