DURKOPP ADLER 838 Instruction Manual
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DURKOPP ADLER 838 Instruction Manual

DURKOPP ADLER 838 Instruction Manual

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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
10/2008
Rev. index: 00.0
Spezialnähmaschine
•
Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com
Printed in Federal Republic of Germany
838
Betriebsanleitung

Instruction manual

Teile-Nr./Part.-No.:
0791 838740
D
GB

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Summary of Contents for DURKOPP ADLER 838

  • 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.: 10/2008 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

    Contents Page: Preface and general safety instructions Part 1: Operating instructions - Class 838 (Edition 10/2008) Product description ..........Designated use .
  • Page 6 Contents Page: Maintenance Cleaning and testing ..........Lubrication .

  • Page 7: Product Description

    Product description The Dürkopp Adler 838 is a special all-purpose sewing machine. · It is a post-bed double-lockstitch machine. · It has a bottom drop (feed) mechanism and a drive-powered top roller. · There are two setting wheels (knobs) which allow the selection of two stitch lengths.

  • Page 8: Subclasses And Sewing Equipment

    Subclasses and sewing equipment Subclasses Class and Number of Stitch length Machine- Hook Trimming and Subclass needles control seam tacking 0838 170522 0838 270522 Sewing equipment 0,01 0,01 1/min 1/min 838-E1 heavy 120-160 25-10 2000 1600 838-E2 extra 180-230 10-8 1600 1600 heavy...

  • Page 9: Optional Equipment

    Optional equipment Order No. Optional equipment Top roller Æ 25 mm, knurled 0888 220334 Top roller Æ 25 mm, smooth 0888 220344 Top roller Æ 25 mm, rubber coating 0888 220354 Top roller Æ 35 mm, knurled (thoroughly) 0888 220364 Top roller Æ...

  • Page 10: Technical Data Class-Specific Technical Data

    Technical data Class-specific technical data Type of stitch Lockstitch 301 Needle system 134LR, 134 KKLR, 134, 134 D Foot lift with hand lever 6 mm Foot lift with knee lever or automatic 12 mm Remaining thread length after thread trimming max.

  • Page 11: Operations

    Operations Threading the needle thread Caution: danger of injury! Turn off the main switch. The needle must be threaded only when the machine is turned off. – Follow illustration A when threading single-needle sewing machines. If the sewing machine is outfitted for the sewing of heavy-duty materials, then wind the thread around the pin (1).

  • Page 12: Winding On The Hook Thread

    Winding on the hook thread – Insert the thread as shown in the illustration. – Stick the thread behind the knife blade (1). Then cut by pulling in the direction of arrow (2). – Put the bobbin on the bobbin shaft and move the bobbin lever (3) in direction (4).

  • Page 13: Adjusting The Thread Tension

    Adjusting the thread tension 6.4.1 Adjusting the hook thread tension Caution: danger of injury! Turn off the main switch. Adjust the shuttle thread tension only when the sewing machine is turned off. – Adjust the shuttle thread tension by turning the screw (1) with a screwdriver.

  • Page 14: Adjusting The Needle Thread Tension

    6.4.2 Adjusting the needle thread tension Adjusting the pre-tensioner (1) – When the main thread tensioner (3) and the supplementary tensioner (2) are open, there must still be a slight tension remaining on the needle thread. This residual tension is created by the pre-tensioner (1).

  • Page 15: Switching The Thread Tensioners On/Off

    Correct thread interlacing in the center of the sewing material Needle thread tension too weak Hook thread tension too strong. Needle thread tension too strong Hook thread tension too weak. Activating and deactivating the thread tension – The pre-tensioner (1) should never be deactivated. –...

  • Page 16: The Functioning Of The Main Thread Tension And The Supplementary Thread Tension In Relation To The Sewing Foot Lift

    6.5.1 The influence of the sewing foot lift on the main thread tensioner and supplementary thread tensioner Button 4 (see chapter 6.5) on the machine’s key pad can be used to activate or deactivate the supplementary thread tension at any time. The parameter F-147 must be set to “1"...

  • Page 17: Changing The Needle For Single-Needle Machines

    Changing the needle for a single-needle machine Caution: danger of injury! Turn the main switch off. Change the needle only when the sewing machine is switched off. – Move the lever (1) forward in order to loosen the screw which is used to fasten the needle.

  • Page 18: Changing The Needle For Double-Needle Machines

    Changing the needle for double-needle machines Caution: danger of injury! Only change the needle when the main tensioner is turned off and the motor has come to a stop. – Loosen screws (1). – Pull the needles under and out from the needle bar. Insert the new needles with the needle scarf (2) according to section cuts (3) or (4).

  • Page 19: Lifting And Folding The Top Roller

    Swiveling and lifting the top roller Using the hand lever to lift the top roller – Lift the top roller by turning the lever (1) in the direction of the arrow until the end stop. The top roller is secured in the upper position by the lever.

  • Page 20: Sewing Foot Pressure

    Swiveling the top roller – Turn the hand lever (1) downwards. The top roller is then secured in the upper position. – Swivel the top roller to the side by pressing in the direction of arrow. Caution: danger of injury! Only swivel the top roller after first turning off the main switch and waiting for the motor to stop.

  • Page 21: Sewing In Reverse (Back-Tacking)

    6.11 Sewing in reverse (bartacking) Using the hand lever to sew backwards – Press the stitch regulator lever (1) downwards. The machine will sew backwards as long as the stitch regulator lever (1) is pressed down. Using the button to sew backwards –...

  • Page 22: Adjusting The Stitch Length

    6.12 Adjusting the stitch length The special sewing machine 838 is equipped with two setting wheels. This allows you to sew with two different stitch lengths which can be activated during the sewing process by pressing a button. The stitch lengths are set using the two setting wheels (1) and (4) found on the machine arm.

  • Page 23: Engaging The Safety Clutch For Hook Blockages

    6.13 Engaging the safety clutch for hook blockages When the thread gets jammed in the hook track, the safety clutch disengages. Caution: danger of injury! Turn off the main switch. The safety clutch should only be engaged when the machine is turned off.
  • Page 24 For your notes:...

  • Page 25: Operating The Machine With The Positioning Drive

    6.14 Operating the machine with the positioning drive 6.14.1 With the pedal The pedal position is detected by a button with 16 different levels. Their meanings are listed in the table below: Pedal position Pedal movement Meaning Fully backwards Command for cutting the thread (end of seam) Half backwards Command for raising the sewing foot Neutral rest position...

  • Page 26: With The Buttons (Key Panel)

    6.14.2 With the buttons 9 8 10 Button Function Sew backwards manually The machine sews backwards for as long as the button is held down. Position the needle in the upper or lower position. The function of the button can be set with the parameter F-242 (DA321): 1 = needle high/low 2 = needle high 3 = one stitch...

  • Page 27: Positioning Drive On The Efka Dc 1550/Da321G

    The Efka DC1550/DA321G positioning drive The DA321G control unit contains all required operational interfaces for switching functions and setting parameters. It is possible to operate without an operating panel, but the seam programming can no longer be carried out. The V810 and V820 operating panels can also be connected to the control unit.

  • Page 28: Sewing On A Machine With Positioning Drive Automatic Machine Functions

    Sewing on a machine with positioning drive Automatic machine functions The machine functions listed in the table below are dependent on the following factors which occur during the sewing process: – Pre-selected setting – Pedal position (according to the selection of the machine operation) –...

  • Page 29: Example - Operating The Machine While Sewing

    The pre-selected automatic functions are described in the instructions included from the drive manufacturer. For a detailed description of the control unit, please consult the enclosed current issue of the operating manual of the motor manufacturer (see also www.efka.net) Additional automatic functions can be pre-selected by changing the drive parameters.
  • Page 30 Maintenance Cleaning and testing Caution: danger of injury! Turn the main switch off. Maintenance work on the sewing machine must only be carried out when the machine is switched off. All maintenance work must be carried out before or at the maintenance intervals defined in the table (check the “operational hours”...
  • Page 31 Maintenance work Explanation Operating interval to perform (hours) - Cleaning the oil collector Clean the oil collector (8) of dirt and contaminated oil. (It can be cleaned with a special vacuum cleaner.) - Cleaning the fan screen Clean the fan screen (9). (It can be cleaned with the compressed air gun.) Maintenance work...
  • Page 32 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 authorized collection point. Protect your environment.

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