DURKOPP ADLER 868 Instruction Manual
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DURKOPP ADLER 868 Instruction Manual

DURKOPP ADLER 868 Instruction Manual

Sewing machine
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Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 521 / 9 25-00
Ausgabe / Edition:
Änderungsindex
05/2008
Rev. index: 00.0
Spezialnähmaschine
•
Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com
Printed in Federal Republic of Germany
868
Betriebsanleitung

Instruction manual

Teile-Nr./Part.-No.:
0791 868740
D
GB

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Summary of Contents for DURKOPP ADLER 868

  • Page 1: Instruction Manual

    Spezialnähmaschine Betriebsanleitung Instruction manual Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 521 / 9 25-00 • Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.: 05/2008 Rev.
  • Page 2 Alle Rechte vorbehalten. Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten. 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.
  • 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

    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

    Page: Preface and general safety instructions Part 1: Operating Instructions Class 868 (Edition 05/2008) Product description ..........
  • Page 6 Contents Page: Maintenance Cleaning and testing ..........Lubrication .

  • Page 7: Product Description

    Integrated winder. Designated use The 868 class is a sewing machine designed for sewing light to medium-heavy material. Such material is generally made of textile fibers, but it may also be leather. It is used in the clothing industry and for domestic and motor-vehicle upholstery.

  • Page 8: Subclasses

    Subclasses 868-190020 Single-needle double-lockstitch post bed machine with bottom feed, needle feed, alternating upper foot feed and large hook.
  • Page 9 868-390322 Double-needle double-lockstitch post bed machine with bottom feed, needle feed, alternating upper foot feed, electro-pneumatic rapid stroke adjustment with automatic speed limitation, operated via knee lever, electro-magnetic thread cutter, electro-pneumatic seam bartacking, electro-pneumatic second stitch length and sewing foot lifting. With large hook, with integrated sewing lamp.

  • Page 10: Optional Equipment

    Optional equipments For the 868 the following optional equipments are available: Order No. Optional equipment Subclasses 0867 590014 Electro-pneumatic needle cooler from the top 0867 590064 Pneumatic connection x x x x x 9780 000108 WE-8 maintenance unit for pneumatic...
  • Page 11 Please contact our Application Center (APC) for further optional equipment. E-Mail: marketing@duerkopp-adler.com Further available documents concerning the class 868: 0791 868801 Parts list 0791 868641 Service Instructions 0791 100700 Fitting Instructions for Sewing Lamp LED 0791 867701 Instructions for fitting seam center guide...

  • Page 12: Technical Data

    Technical data Noise: Workplace-related emission value in accordance with DIN 45635-48-A-1-KL2 868-190020 LC = _dB (A) Stitch length: _ mm Sewing foot stroke: mm Speed: ____ min Material: 868-290020 LC = _dB (A) Stitch length: _ mm Sewing foot stroke: mm Speed: ____ min...

  • Page 13: Technical Data Subclasses

    Technical data subclasses Type of stitch Lockstitch 301 Hook type Number of needles Needle system 134-35 Needle size (depending on E-No.) [Nm] Max. thread thickness [Nm] 10 / 3 Stitch length [mm] - Forward - Backward Number adj. stitch lengths Max.
  • Page 14 Threading scheme single-needle machine 0868 190xxx 0868 390xxx Threading scheme double-needle machine...

  • Page 15: Operation

    Operation Threading the needle thread Caution: danger of injury ! Turn off the main switch. The needle thread may only be threaded with the sewing machine switched off. – Put the thread reel on the thread stand and lead the needle thread through the unwinder arm.
  • Page 16 Fig. A: Correct thread interlacing in the center of the material Fig. B: Needle-thread tension too low hook-thread tension too high Fig. C: Needle-thread tension too high hook-thread tension too low...

  • Page 17: Adjusting The Needle-Thread Tension

    Adjusting the needle-thread tension Pre-tensioner When the main tensioner 2 and supplementary tensioner 3 are open (e.g. when the sewing feet are raised) the needle thread must be under slight residual tension. This residual tension is produced by the pre-tensioner 1. The pre-tensioner 1 simultaneously affects the length of the end of the severed needle thread (the starting thread for the next seam).

  • Page 18: Function Of The Thread Main Tension And The Thread Supplementary Tension In Relation To The Sewing Foot Lifting

    6.2.1 Function of the thread main tension and the thread supplementary tension in relation to the sewing foot lifting Only Efka DC 1550 DA 321G The thread supplementary tension can, at any time, be switched on or off by actuating the switch key 1 (see chapter 6.17) on the key block of the machine.

  • Page 19: Function Of The Thread's Supplementary Tension In Relation To The Stroke Adjustment And The Speedomat

    F-117 = 1.600 min Opening the thread tension Subclasses 868-190020, 868-290020 When lifting the sewing feet with the knee switch, main and supplementary tension are automatically opened. Subclasses 868-190322, 868-290322, 0868-390322 The thread tension is automatically opened when trimming the thread.

  • Page 20: Short Stitch

    Short stitch The short stitch can be set mechanically forward as well as backward. The short stitch is set by turning the stop screw 2 with an Allen wrench (size 3): Clockwise à forward. Counterclockwise à backward. 6.4.1 Short stitch at the seam beginning When sewing without initial bartack the reliability of the seam beginning can be increased by beginning the seam with a short stitch.

  • Page 21: Switching The Supplementary Tension On And Off With Machines Without Thread Trimmer

    Switching the supplementary tension on and off with machines without thread trimmer The supplementary tension is being switched on and off with lever 1. Switching on – Push the handle 2 of lever 1 to the left. Switching off – Push the handle 2 of the lever 1 to the right.

  • Page 22: Adjusting The Thread Regulator

    Adjusting the thread regulator Caution: danger of injury ! Turn off the main switch. The thread regulator may only be adjusted with the sewing machine switched off. The thread regulator 1 controls the quantity of needle thread required for stitch formation. The thread regulator must be precisely adjusted for an optimum result.

  • Page 23: Winding On The Hook Thread

    Winding on the hook thread – Put the thread reel on the thread stand and conduct the needle thread through the unwinder arm. – Conduct the thread through the thread guide 5, around the tensioner 4 and through the thread guide 3. –...

  • Page 24: Changing The Hook-Thread Bobbin

    Changing the hook-thread bobbin Caution: danger of injury ! Turn off the main switch. The hook-thread bobbin may only be changed with the machine switched off. Removing the empty bobbin – Raise the sewing foot. – Pull the hook cover 1 upwards and open it. –...

  • Page 25: Setting The Hook Thread Tension

    Setting the hook thread tension Caution: danger of injury ! Turn off the main switch. The hook-thread tension may only be adjusted with the machine switched off. Setting the tension spring 2 – Set the tension spring 2 by turning the adjustment screw 1. Increase the hook thread tension = Turn screw 1 clockwise Decrease the hook thread tension = Turn screw 1 counterclockwise...

  • Page 26: Inserting And Changing The Needle With Single-Needle Machines

    6.10 Inserting and changing the needle with single-needle machines Caution: danger of injury ! Turn off the main switch. The needle may only be changed with the sewing machine switched off. – Turn the hand wheel, until the needle bar 1 has reached its highest position.

  • Page 27: Inserting And Changing The Needle With Double-Needle Machines

    6.11 Inserting and changing the needle with double-needle machines Caution: danger of injury ! Turn off the main switch. The needle may only be changed with the sewing machine switched off. – Turn the hand wheel until the needle bar 1 has reached its highest position.

  • Page 28: Lifting The Sewing Foot

    The sewing feet can be lifted mechanically by actuating the knee lever 1. Subclasses 868-190322, 868-290322, 868-390322 The sewing feet can be lifted electro-pneumatically by actuating the pedal 2 or the knee lever 1. Raising the sewing foot mechanically (knee lever) –...

  • Page 29: Locking The Sewing Feet In Lifted Position

    6.13 Locking the sewing feet in lifted position – Push the lever 1 downwards. The sewing feet are locked in lifted position. – Push the lever 1 upward. The sewing feet’s position is unlocked. – Lift the sewing feet pneumatically by pushing the knee switch. The lever 1 then moves back into its initial position.

  • Page 30: Sewing-Foot Stroke

    6.15 Sewing-foot stroke The special sewing machine 868 has, depending on the subclass, as standard equipment two setting wheels for the sewing foot stroke. With the left setting wheel 2 the standard sewing foot stroke from 1 to 9 mm is selected.
  • Page 31 Operation mode of the quick stroke adjustment The activation period of the maximum sewing foot stroke depends on the set operation mode. It is possible to choose between three operation modes. The individual operation modes are determined by the adjustment of the parameters F-138 and F-184 at the control panel (see enclosed instructions of the motor manufacturer).

  • Page 32: Setting The Stitch Length

    6.16 Setting the stitch length The special sewing machines 868 are, depending on the subclass, equipped with two setting wheels. Thus, two different stitch lengths can be sewn, that are activated by actuating a key (see chapter 6.17). The two stitch lengths are set with the setting wheels 1 and 2 on the machine arm.

  • Page 33: Key Pad On The Machine Arm

    6.17 Key pad on the machine arm Function Supplementary thread tension If the key is lit up: Supplementary thread tension is switched on. If the key is not lit up: Supplementary thread tension is switched off. stitch length If the key is lit up: Higher stitch length (upper setting wheel) is active If the key is not lit up: Smaller stitch length (lower setting wheel) is active...

  • Page 34: Sewing Drive And Operating Panel

    Function 7 and 8 Display for empty bobbin with residual thread monitor (left/ right bobbin) LED display “power on" The function of key 9 can be selected with the screw 6 underneath the key 5. – Select a function. Example: 5 = Manually sewing backward. –...

  • Page 35: Sewing

    Sewing This description is based on the following assumptions: – The machine is a single-needle machine equipped with a: - thread trimmer - electro-pneumatic seam bartacking and sewing foot lifting - electro-pneumatic rapid stroke adjustment – The following functions are set at the operating panel: Initial bartack: Final bartack: Position of the sewing foot...
  • Page 36 Sewing an intermediate bartack - Push down the stitch regulator lever 6. The machine sews reverse stitches as long as the stitch regulator lever is pressed down. The rotation speed is determined through the pedal. - Actuate key 5. Sewing over a cross seam. The max.

  • Page 37: Maintenance

    Maintenance Cleaning and testing Caution: danger of injury ! Turn off the main switch. Maintenance may only be carried out with the machine switched off! Maintenance work must be carried out no less frequently than at the intervals given in the tables (see ”operating hours” column). Maintenance intervals may need to be shorter when processing heavy-shedding materials.
  • Page 38 Maintenance work Explanation Operating to be carried out hours Sewing drive Remove lint and pieces of thread from Clean fan grille 2. (e.g. with an air blow gun) air-intake openings. Check condition and It must be possible to depress the V-belt by about 10 mm by pressing it with a finger at its tension of V-belt 1.

  • Page 39: Lubrication

    Lubrication Caution: danger of injury ! Oil can cause skin eruptions. Avoid protracted contact with the skin. In the event of contact, thoroughly wash the affected area. CAUTION: The handling and disposal of mineral oils is subject to legal regulation. Deliver used oil to an authorised collection point.

  • Page 40: Optional Equipment

    10. Optional equipment 10.1 Seam center guide General information The seam center guide serves as guiding aid when topstitching. It is used for guiding the center of two seams with equal distance so that the distance to the left and to the right needle is equal. Attention! The pressure for the seam center guide must not exceed 3 bar.

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