Duerkopp Adler 743-221 Operating Instructions Manual
Duerkopp Adler 743-221 Operating Instructions Manual

Duerkopp Adler 743-221 Operating Instructions Manual

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Contents
Preface and General Safety Information
Part 1: Operating Instructions Cl. 743-221
1.
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1
Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
Short Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
2.1
Tilting the Machine Head Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Turning On - Quick Stop - Restarting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
Setting the Needle Thread Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5
Thread Monitor for the Needle Thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6
Setting the Thread Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7
Winding the Underthread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8
2.8.1 Counter for the Control of the Underthread Reserve . . . . . . . . . . . . . . . . . . . . . . . .
2.9
Remaining Thread Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.10
Setting the Underthread Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.11
2.12
Changing the Form Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.13
Work Area, Angle and Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.14
Setting the Insertion Depth of the Folding Table . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
Setting the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Sewing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1
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5.2
Oil Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents
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Summary of Contents for Duerkopp Adler 743-221

  • Page 1: Table Of Contents

    Contents Page: Home Preface and General Safety Information Part 1: Operating Instructions Cl. 743-221 Product Description ......... Proper Use .
  • Page 3: Product Description

    1. Product Description 1.1 Proper Use The 743-221 is a sewing unit which can properly be used for the sewing of light to medium weight material. Such material is, as a rule, material made up of textile fibers or of leather.
  • Page 4: Short Description

    1.2 Short Description The DÜRKOPP 743-221 is a sewing unit for the automated sewing single-point darts with straight or curved seam form and for the sewing of pleats. The unit is equipped with a machine head in lockstitch execution. A form set appropriate to the seam form holds and guides the material.
  • Page 5: Optional Equipment

    1.4 Optional Equipment 0794 013222 Bundle clamp with slewing arm and holding pipe. 0794 000091 Placement table (small). (only in conjunction with the bundle clamp) 0794 000332 Smoother device for smoothing the blown-out sewing pieces. (only in conjunction with the bundle clamp) 0794 013333 Blower pipe from above or from the right.
  • Page 6: Turning On - Quick Stop - Restarting

    2.2 Turning On - Quick Stop - Restarting Caution Risk of Injury ! Do not reach into the area of moving machine parts. Turning on – Turn the main switch 2 on. The controls are initialized. The sewing unit requests a reference run. –...
  • Page 7: Threading The Needle Thread

    2.3 Threading the Needle Thread Caution Risk of Injury ! Turn the main switch off. Thread the needle thread only with the sewing unit turned off. – Thread the needle thread as shown in the illustration. 2.4 Setting the Needle Thread Tension Pre-tensioning 1 If the sewing unit is on, than the maintension is open.
  • Page 8: Thread Monitor For The Needle Thread

    2.5 Thread Monitor for the Needle Thread The switch b14 monitors the needle thread. Function – After a breaking of the needle thread the thread guide 1 drops down. The switch b14 remains unoperated. – The machine head positions in position 2 (needle up). The display of the control unit shows the symbol "-x-"...
  • Page 9: Setting The Thread Regulator

    2.6 Setting the Thread Regulator The needle thread quantity required for stitch formation is regulated with the thread regulator 2. Only a precisely set thread regulator guarantees an optimal sewing result. The setting of the thread regulator is dependent on the following factors: –...
  • Page 10: Winding The Underthread

    2.7 Winding the Underthread Caution Risk of Injury ! Turn the main switch off. Thread the underthread for winding only with the sewing unit turned off. – For a secure functioning of the remaining thread monitor remove thread residue from the bobbin hub before winding. –...
  • Page 11: Changing The Bobbin

    2.8 Changing the Bobbin Caution Risk of Injury ! Turn the main switch off. Change the underthread bobbin only with the sewing unit turned off. Removing the empty bobbin – Lift bobbin case flap 1. – Take out the bobbin case top 7 with bobbin. –...
  • Page 12: Counter For The Control Of The Underthread Reserve

    2.8.1 Counter for Control of the Underthread Reserve The decrementer, which can be preset in program P41, monitors the underthread reserve. It is decreased by the value 1 after every 10 stitches. The height of the initial value to be selected depends –...
  • Page 13: Remaining Thread Monitor

    2.9 Remaining Thread Monitor The remaining thread monitor monitors the thread reserve on the the underthread bobbin with the infrared reflecting light barrier 1. Function – After a certain number of seams the underthread reserve on the bobbin is used up. –...
  • Page 14: Setting The Underthread Tension

    2.10 Setting the Underthread Tension The necessary underthread tension should be created by the tension spring 1. Caution Risk of Injury ! Turn the main switch off. Set the brake spring 1 and the tension spring 3 only with the sewing unit turned off.
  • Page 15: Changing The Needle

    2.11 Changing the Needle Caution Risk of Injury ! Turn the main switch off. Change the needle only with the sewing unit turned off. – Loosen screw 1 and remove the needle. – Push the new needle into the drilled hole of the needle bar 2 up to the stop.
  • Page 16: Changing The Form Set

    2.12 Changing the Form Set A form set corresponding to the desired seam form must be inserted. Form set 0793 078001 = Straight seam Form set 0793 078002 = Curved seam Form set 0793 078034 = Curved seam for pleats Form set 0793 078xxx = Customer-specific version Caution Risk of Injury !
  • Page 17 Work Area for Darts Angle adjustment area dart length Area of shapes Example for form set 0793 078001 1 Dart depth max. 2.1 cm at 10°, length 9.5 cm 3 Form set 0793 078001 2 Dart depth max. 0.4 cm at 0°, length 8.5 cm 4 Form set 0793 078002 Work Area for Pleats Angle adjustment area...
  • Page 18: Work Area, Angle And Length

    2.13 Work Area, Angle and Length The dart depth is dependent on: – the form set used – the dart length – the setting of the folding table The folding table is continuously adjustable between 0 - 10°. The dart depths for other angles and lengths can be found in the diagrams.
  • Page 19: Setting The Insertion Depth Of The Folding Table

    2.14 Setting the Insertion Depth of the Folding Table The first stitch of the needle into the material should occur as close as possible to the front edge. In order to achieve a uniformly slim dart point with differing material thicknesses, the machine is equipped with a fine adjustment.
  • Page 20: Setting The Controls

    3. Setting the Controls The setting of the controls is explained in detail in Part 4: Short Description Microcontrol ! Here only those settings required for the sewing sequence are listed. Caution Risk of Injury ! Turn the main switch on ! The programming of the controls occurs with the main switch turned The machine should not be started unintentionally.
  • Page 21 – Activating the Softstart. Press the key. The LED is lit when the function is selected. – Preselecting end securing at the seam beginning. Press the key. LED on: End securing through stitch condensation LED off: End securing through seam tacking –...
  • Page 22: Sewing

    4. Sewing After the main switch is turned on or the " STOP " key is pressed, the microcomputer checks the base setting of the sewing unit. Caution Risk of Injury ! Turn the main switch off ! Mark the dart length only with the sewing unit turned off. –...
  • Page 23: Maintenance

    5. Maintenance of the Sewing Unit Caution Risk of Injury ! Turn the main switch off. The maintenance of the sewing unit may only be conducted when it is turned off. 5.1 Cleaning A clean machine protects against malfunctions ! Daily cleaning: –...
  • Page 24: Oil Lubrication

    5.2 Oil Lubrication For lubrication of the special sewing machine, use only ESSO SP-NK 10 lubricating oil or an equivalent oil with the following specification: – Viscosity at 40 °C: 10 mm2/s – Flash point: 150 °C ESSO SP-NK 10 lubricating oil can be obtained from the DÜRKOPP ADLER AG sales offices: 2 liter container 0570 001699...

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