DURKOPP ADLER 911 - MANUAL SERVICE Operating & Installation Instructions Manual
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DURKOPP ADLER 911 - MANUAL SERVICE Operating & Installation Instructions Manual

DURKOPP ADLER 911 - MANUAL SERVICE Operating & Installation Instructions Manual

Cnc-controlled sewing unit with large sewing area
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CNC-controlled sewing unit with large
Postfach 17 03 51, D-33703 Bielefeld Ÿ Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 5 21/ 59 25-00 Ÿ Telefax +49 (0) 5 21/ 9 25 24 35 Ÿ www.duerkopp-adler.com
Ausgabe / Edition:
Änderungsindex
08/2010
Rev. index: 00.0
Operating Instructions
Installation Instructions
Service Instructions
Printed in Federal Republic of Germany
911
sewing area
Teile-Nr./Part.-No.:
0791 911001
1
2
3

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  • Page 1 CNC-controlled sewing unit with large sewing area Operating Instructions Installation Instructions Service Instructions Postfach 17 03 51, D-33703 Bielefeld Ÿ Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 5 21/ 59 25-00 Ÿ Telefax +49 (0) 5 21/ 9 25 24 35 Ÿ www.duerkopp-adler.com Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.:...
  • Page 2 All rights reserved. Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, even in extracts, without prior written permission of Dürkopp Adler AG, is prohibited. Dürkopp Adler AG - 2010 Copyright ©...
  • Page 3 Foreword This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations. The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.
  • Page 4 General safety instructions The non-observance of the following safety instructions can cause bodily injuries or damages to the machine. 1. The machine must only be commissioned in full knowledge of the instruction book and operated by persons with appropriate training. 2.

  • Page 5: Table Of Contents

    Contents Page: Part 3: Service instructions class 911 (Edition 08/2010) General information Gauges ........... . . Description of the marking positions .
  • Page 7 General These service instructions describe how to set up the special CNC controlled large field 911 sewing unit. IMPORTANT! The tasks described in these service instructions must only be carried out by qualified or appropriately trained people. Caution: Danger of injury! Turn off the main switch for repair, conversion and maintenance work and disconnect the machine from the pneumatic supply system.

  • Page 8: Gauges

    1.1 Gauges The locking pin 1 required to set the sewing unit is provided as standard with the machine. It is included with the machine 1.2 Description of the marking positions With the locking pin 1, the sewing machine can be locked in two setting positions in the marking grooves 2 and 3 in the needle bar crank 4.

  • Page 9: Position Of The Needle Bar Crank On The Arm Shaft

    Upper part of sewing machine 2.1 Position of the needle bar crank on the arm shaft Caution: Danger of injury! Turn off the main switch. Only check and adjust the position of the needle bar crank when the sewing unit is switched off. Adjustment and inspection The needle bar crank 1 is fixed to the arm shaft with the two screws 2.

  • Page 10: Position Of The Top Sprocket Belt Wheel

    2.2 Position of the top sprocket belt wheel Caution: Danger of injury! Turn off the main switch. Only check and adjust the position of the top sprocket belt wheel when the sewing unit is switched off. Adjustment and inspection The sprocket belt wheel 2 is fitted to the arm shaft 4 with two grub screws 3.

  • Page 11: Position Bottom Sprocket Belt Wheel

    2.3 Position bottom sprocket belt wheel Caution: Danger of injury! Turn off the main switch. Only check and adjust the position of the lower sprocket belt wheel when the sewing unit is switched off. Adjustment and inspection The grub screws in the sprocket belt wheel 2 must sit on the flat spot 1 of the arm shaft 5.

  • Page 12: Aligning Needle Bar Crank

    2.4. Aligning needle bar crank Caution: Danger of injury! Turn off the main switch. Only check and adjust the needle bar crank when the sewing unit is switched off. Adjustment and inspection The needle must go through the middle of the needle hole 1. –...

  • Page 13: Hook, Loop Stroke And Needle Bar Height

    2.5 Hook, loop stroke and needle bar height 2.5.1 Loop stroke Caution: Danger of injury! Turn off the main switch. Only check and adjust the loop stroke when the sewing unit is switched off. Adjustment and inspection The loop stroke is the path of the needle bar from the top dead centre to the point at which the hook tip 2 is in the middle of needle 1.

  • Page 14: Needle Bar Height

    2.5.2 Needle bar height Caution: Danger of injury! Turn off the main switch. Only check and adjust the needle bar height when the sewing unit is switched off. Adjustment and inspection The height of the needle bar must be set so that the hook point is in the centre of the hollow channel of the needle 3 when setting the loop stroke.

  • Page 15: Distance Between Hook And Needle

    2.5.3 Distance between hook and needle Caution: Danger of injury! Turn off the main switch. Only check and adjust the hook distance when the sewing unit is switched off. Adjustment and inspection In the loop stroke position the distance between the hook tip 3 and the needle channel 4 must be no more than 0.1mm.

  • Page 16: Needle Guard At The Hook

    2.5.4 Needle guard at the hook Caution: Danger of injury! Turn off the main switch. Only check and adjust the needle guard when the sewing unit is switched off. Adjustment and inspection The needle guard 2 should prevent the needle touching the hook tip. In the loop stroke position the needle should be pushed away slightly.

  • Page 17: Needle Guide

    2.5.5 Needle guide Caution: Danger of injury! Turn off the main switch. Only check and adjust the needle guard when the sewing unit is switched off. Adjustment and inspection In the loop stroke position, the needle should be as close as possible to the needle guide 5 without touching it.

  • Page 18: Bobbin Housing Elevator

    2.6 Bobbin housing elevator 2.6.1 General The thread lever must draw the thread between the bobbin housing 3 and its retainer 1. So that the thread can slip through unhindered, the bobbin housing must be raised at this time. As a result the required seam construction is achieved with the lowest possible thread tension.
  • Page 19 To adjust – Undo screw 5 and turn lid 6 downwards. – Undo screw 7 in the hook housing. – Set bobbin housing elevator 4. – Screw in screw 7 in the hook housing again. – Turn lid 6 closed again and fix with screw 5.

  • Page 20: Elevation Time

    2.6.3 Elevation time Caution: Danger of injury! Turn off the main switch. Only check and adjust the bobbin housing elevator when the sewing unit is switched off. Adjustment and inspection If the hook tip 5 is below the bobbin housing elevator after taking up the loop, the thread should slip through unhindered between the bobbin housing elevator finger 4 and bobbin housing 3.

  • Page 21: Sewing Foot Elevation

    2.7 Sewing foot elevation 2.7.1 Checking the lift position drive Caution: Danger of injury! Turn off the main switch. Only check and adjust the stroke position drive when the sewing unit is switched off. Adjustment and inspection The sprocket rod 2 of the stroke drive should have a distance of 16.5 +/- 0.5 mm to the upper edge 1 of the stroke position housing.

  • Page 22: Setting The Light Barrier

    2.7.2 Setting the light barrier Caution: Danger of injury! Turn off the main switch. Check and adjust the light barrier with the greatest care when the sewing unit is switched on. Adjustment and inspection The light barrier with fastening plate 2 should be placed so that the light barrier (S103) switches before the upper stop of the sprocket rod is reached.

  • Page 23: Setting The Left Stop Screw Of The Lift Drive

    2.7.3 Setting the left stop screw of the lift drive Caution: Danger of injury! Turn off the main switch. Only check and adjust the stop screw when the sewing unit is switched off. Adjustment and inspection The left stop screw 3 of the lift drive must be set so that lever 1 does not perform lift if the stop block 2 touches the screw.

  • Page 24: Setting The Foot Lift According To The Needle Bar Lift

    2.7.4 Setting the foot lift according to the needle bar lift Caution: Danger of injury! Check and adjust the foot lift according to the needle bar lift with the greatest care when the sewing unit is switched on. Adjustment and inspection The lift drive 2 must be switched so that lift is performed.
  • Page 25 To adjust – Undo the screw at eccentric 3. – Turn eccentric 3 on the arm shaft. – Tighten screw at eccentric 3. – Turn upper part into loop lift position. Check if lever 1 performs a movement.

  • Page 26: Foot Height

    2.7.5 Foot height Caution: Danger of injury! Check and adjust the foot height with the greatest care when the sewing unit is switched on. Adjustment and inspection The sewing foot lift can be adjusted from 1 mm to max. 10 mm. Where a height of 1 mm is set in the control, the foot must be 1 mm above the stitch plate.
  • Page 27 To adjust – Undo screw 1 on the swivel shaft. – Turn swivel shaft so that the distance between stitch plate and sewing foot is 1 mm. – Tighten screw 1 on the swivel shaft. – Turn sewing foot into the upper dead centre. The distance between the stitch plate and sewing foot must now be 5 mm.

  • Page 28: Reference Light Barrier Sewing Axis

    2.7.6 Reference light barrier sewing axis Caution: Danger of injury! Check and adjust the reference light barrier with the greatest care when the sewing unit is switched on. Adjustment and inspection The sewing machine should move to the upper dead centre of the needle bar for referencing.

  • Page 29: Thread Guiding Parts

    2.8 Thread guiding parts 2.8.1 Thread regulator Caution: Danger of injury! Turn off the main switch. Only check and adjust the thread regulator when the machine is switched off. Adjustment and inspection The position of the thread regulator 2 depends on the thickness of the material, the thread thickness and the selected stitch length.

  • Page 30: Thread Take Up Spring

    2.8.2 Thread take up spring Caution: Danger of injury! Turn off the main switch. Only check and adjust the thread take up spring when the machine is switched off. Adjustment and inspection The adjustment rules for spring travel and spring tension apply to normal needle thread thicknesses.
  • Page 31 To adjust Spring travel – Undo screw 1. – Turn the stop sleeve 3. Turn anti-clockwise = more travel Turn clockwise = less travel. – Screw up screw 1. Spring tension – Undo screw 1. – Turn spring washer 2 without changing the position of the stop sleeve 3.

  • Page 32: Short Thread Cutter

    2.9 Short thread cutter 2.9.1 General Thread draw cutter height The thread draw cutter height is set at the factory by adjustment washers under the cutter support 1 (see figure). When removing the thread cutter make a note of the number of adjustment discs.

  • Page 33: Locking Catch For Thread Draw Cutter

    2.9.2 Locking catch for thread draw cutter Caution! Risk of breaking! Machine must not be operated without thread draw cutter. The return protection for the bobbin housing is located at the thread draw cutter. Adjustment and inspection The locking catch 10 should not exceed approx. 0.1 mm distance to the locking bolt 11 in the tread draw cutter 1 rest position.

  • Page 34: Thread Draw Cutter

    2.9.3 Thread draw cutter Caution: Danger of injury! Turn off the main switch. Only check and adjust the thread draw cutter when the sewing unit is switched off. Warning! Machine must not be operated without thread draw cutter. The return protection for the bobbin housing is located at the thread draw cutter.
  • Page 35 To adjust – Loosen grub screws (4x) at the clamping ring 6 and push them towards the hook bearing. Tighten the four grub screws at the clamping ring 6 again to prevent changing the loop lift. – Undo grub screws (2x) at the radial cam 5. –...

  • Page 36: Counter Cutter

    2.9.4 Counter cutter Caution: Danger of injury! Turn off the main switch. Only check and adjust the counter cutter when the machine is switched off. Adjustment and inspection The thread should be cut reliably with the lowest possible pressure. Low cutting pressure keeps wear on the blades low Two of the thickest threads to be sewn must be cut reliably at the same time.
  • Page 37 To adjust cutting pressure – Swing out the thread draw cutter 2 until the mark 19 is next to the edge of the counter blade 4. – Undo screw 20. – Turn the counter blade 4 against the thread draw cutter 2. –...

  • Page 38: Cutting Position

    2.9.5 Cutting position Caution: Danger of injury! Turn off the main switch. Only check and adjust the cutting position when the machine is switched off. Adjustment and inspection By default, the cutting position is in the position “thread lever at the upper dead centre”.

  • Page 39: Oil Lubrication

    Oil lubrication Caution: Danger of injury! Oil can cause skin rashes. Avoid excessive contact with the skin. Wash thoroughly after contact. IMPORTANT! Handling and disposing of mineral oils is subject to statutory regulations. Take used oil to an authorised receiving centre. Protect the environment.

  • Page 40: Hook Lubrication

    3.1 Hook lubrication Caution: Danger of injury ! Turn off the main switch. Adjust the hook lubrication only with the sewing machine switched off. Make a functional test with utmost caution when the sewing machine is running. Standard checking The necessary oil quantity for the correct lubrication of the hook has been adjusted by the manufacturer.

  • Page 41: Maintenance

    Maintenance Caution: Danger of injury! Switch the main switch off. The sewing machine must only be maintained when it is switched off. The maintenance work to be carried out by the sewing machine operating personnel daily or weekly (cleaning and lubricating) are described in the operating instructions (Part 1).
  • Page 42 Notes:...

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