Duerkopp Adler 669 Service Instructions Manual
  1. Manuals
  2. Brands
  3. Duerkopp Adler Manuals
  4. Sewing Machine
  5. 669 Premium
  6. Service instructions manual

Duerkopp Adler 669 Service Instructions Manual

Special sewing machine
Hide thumbs Also See for 669:
Table of Contents

Advertisement

Quick Links

See also: Operating Instructions , Instruction Manual
Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 521 / 9 25-00
Ausgabe / Edition:
Änderungsindex
09/2009
Rev. index: 00.0
Spezialnähmaschine
•
Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com
Printed in Federal Republic of Germany
669
Serviceanleitung

Service Instructions

Teile-Nr./Part.-No.:
0791 669641
D
GB

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 669 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Duerkopp Adler 669

Summary of Contents for Duerkopp Adler 669

  • Page 1: Service Instructions

    Spezialnähmaschine Serviceanleitung Service Instructions 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.: 09/2009 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: 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: Service Instructions Class 669 (Edition 09/2009) General Gauges........... . . Description of the setting positions .
  • Page 6 Contents Page: 2.14.2 Thread trimmer cam position ........2.14.3 Play between the roller and the control cam .

  • Page 7: General

    General The present service instruction describes the adjustment of the special sewing machine 669. ATTENTION! The operations described in the service instructions must only be executed by qualified staff or correspondingly instructed persons respectively! Caution: Risk of injury! In case of repair, alteration or maintenance work turn off the main switch and make sure to disconnect the machine from the air supply system.

  • Page 8: Description Of The Setting Positions

    Description of the setting positions The sewing machine can be locked in 2 different setting positions with the locking pin 1 and the arresting notches 2 and 3 on the arm shaft crank 4. Position I = Locking pin Ø 5 mm for large groove = Looping stroke, needle bar height Position II = Locking pin Ø...

  • Page 9: Sewing Machine

    Sewing machine Position of the arm shaft crank on the arm shaft Caution: Risk of injury! Turn off the main switch. Check and set the position of the arm shaft crank only with the sewing machine switched off. Standard checking The arm shaft crank 1 is fastened on the arm shaft 4 with the three screws 2.

  • Page 10: Upper And Lower Toothed Belt Wheel / Toothed Belt

    Upper and lower toothed belt wheel / toothed belt 2.2.1 Position of the upper toothed belt wheel Caution: Risk of injury! Turn off the main switch. Check and set the position of the upper toothed belt wheel only with the sewing machine switched off. Standard checking The toothed belt wheel 2 is fastened on the arm shaft 4 with two threaded pins.

  • Page 11: Position Of The Lower Toothed Belt Wheel

    2.2.2 Position of the lower toothed belt wheel Caution: Risk of injury! Turn off the main switch. Check and set the position of the lower toothed belt wheel only with the sewing machine switched off. Standard checking The screws in the toothed belt wheel 4 must sit on the flat spot 1 of the lower shaft 5.

  • Page 12: Bottom Feed And Stitch Regulator Gear

    Bottom feed and stitch regulator gear 2.3.1 Basic setting of stitch adjustment Caution: Risk of injury! Turn off the main switch. Set the basic setting of stitch adjustment only with the sewing machine switched off. Standard checking When the setting wheel 5 is in “0" position, the stitch regulator gear should have the least possible play.
  • Page 13 Adjust eccentric The eccentric 2 has to be adjusted in such a way that the open side 3 of the eccentric slot superimposes the screw 1. – Loosen the screw 1. – Turn the eccentric 2 in such a way that the open side 3 of the eccentric slot be oriented to the screw 1.

  • Page 14: Adjust The 2Nd Stitch Length

    2.3.2 Adjust the 2nd stitch length Caution: Risk of injury! Turn off the main switch. Set the basic setting of stitch adjustment only with the sewing machine switched off. – Set the upper setting wheel 1 to “4". – Unscrew the screw 2 and remove the setting wheel 3. –...

  • Page 15: Position Of The Feed Dog In The Throat Plate Cutout

    2.3.3 Position of the feed dog in the throat plate cutout Caution: Risk of injury! Turn off the main switch. Set and check the feed dog only with the sewing machine switched off. Standard checking The feed dog 1 should be positioned so that the distance to the right and left edge of the throat plate cutout 2 is identical.

  • Page 16: Feeding Motion Of The Feed Dog

    2.3.4 Feeding motion of the feed dog Caution: Risk of injury! Turn off the main switch. Check and set the feeding motion of the feed dog only when the machine is switched off. Standard checking The markings on the eccentric 2 and the connecting rod 1 should lie next to each other when the machine is in “looping stroke position”.

  • Page 17: Lifting Motion Of The Feed Dog

    2.3.5 Lifting motion of the feed dog Caution: Risk of injury! Turn off the main switch. Check and set the lifting motion of the feed dog only with the sewing machine switched off. Standard checking The markings on the eccentric 1 and the connecting rod 2 should lie next to each other when the machine is in “looping stroke position”.

  • Page 18: Feed Dog Height

    2.3.6 Feed dog height Caution: Risk of injury! Turn off the main switch. Check and set the feed dog height only when the machine is switched off. Standard checking Machines without feed dog stroke The feed dog should have the same height as the throat plate. Machines with feed dog stroke For a safe forward movement of the material the feed dog 3 must in its highest position be 0.6 –...

  • Page 19: Neutralizing The Feed Dog Stroke

    2.3.7 Neutralizing the feed dog stroke Caution: Risk of injury! Turn off the main switch. The removal of the slide for the feed dog should only be done with the sewing machine switched off. The feed dog stroke can be neutralized through removing the slide 7 for example for binding operations.

  • Page 20: Transmission Lever

    Transmission lever 123,6 mm Caution: Risk of injury! Turn off the main switch. Check and set the transmission lever only when the machine is switched off. Standard checking The lever 3 transmits the movement of the advance shaft to the needle bar linkage.

  • Page 21: Needle Bar Linkage

    Needle bar linkage 2.5.1 Align the needle bar linkage laterally Caution: Risk of injury! Turn off the main switch. Check and set the needle bar linkage only with the sewing machine switched off. Standard checking The needle must penetrate the center of the feed dog’s stitch hole. –...

  • Page 22: Needle Penetration In Feeding Direction

    2.5.2 Needle penetration in feeding direction Caution: Risk of injury! Turn off the main switch. Check and set the needle penetration only when the machine is switched off. Standard checking The needle 1 should penetrate the center of the feed dog’s stitch hole with the stitch length set to “0".

  • Page 23: Hook, Looping Stroke And Needle Bar Height

    Hook, looping stroke and needle bar height 2.6.1 Looping stroke, distance between the hook tip and needle Caution: Risk of injury! Turn off the main switch. Check and set the looping stroke and the distance between the hook tip and needle, only with the sewing machine switched off. Standard checking The looping stroke is the way of the needle bar from its bottom dead center to the point where the hook tip 2 is at the middle of the needle 1.
  • Page 24 Correction looping stroke setting – Loosen screws on the toothed wheel 1. – Arrest the machine head in position I by putting the locking pin Ø 5 mm into the large groove. – Set the stitch regulator lever or the stitch length setting wheel to “0".

  • Page 25: Needle Bar Height

    2.6.2 Needle bar height Caution: Risk of injury! Turn off the main switch. Check and set the needle bar height only when the machine is switched off. Standard checking The needle bar’s height is to be set in a way that the hook tip stands in the lower third of the needle scarf with the stitch length set to the largest one and the machine in the looping stroke position.

  • Page 26: Throat Plate Base

    Throat plate base Caution: Risk of injury! Turn off the main switch. Check and correct the bobbin case support only with the sewing machine switched off. Standard checking There should be enough clearance between the bobbin case and the lug of the bobbin case (lug integrated in the throat plate base 3), so that the needle thread can be unhindered pulled through.

  • Page 27: Feeding Foot And Presser Foot

    Feeding foot and presser foot 2.8.1 Feeding foot and presser foot stroke Caution: Risk of injury! Turn off the main switch. Check and set the sewing feet stroke only with the sewing machine switched off. Standard checking The strokes of both sewing feet should be identical when the setting wheel 5 is set to “3".

  • Page 28: Stroke Motion Of The Feeding Foot

    2.8.2 Stroke motion of the feeding foot Caution: Risk of injury! Turn off the main switch. Check and set the stroke motion of the feeding foot only with the sewing machine switched off. Prerequisite · The strokes of the feeding foot 1 and the presser foot 2 must be set (see chapter 2.8.1).

  • Page 29: Sewing Foot Pressure

    2.8.3 Sewing foot pressure Standard checking The material that is to be sewn must not “float”. It should not be exerted more pressure than necessary. Correction – Set the sewing foot pressure by turning screw 1. Increase the pressure = Turn screw 1 clockwise. Decrease the pressure = Turn screw 1 counter-clockwise.

  • Page 30: Stitch Length Limitation

    Stitch length limitation Depending on the sewing equipment used, the stitch length setting has to be limited to 6 or 9 mm. – Unscrew the screw 2 on the stitch length setting wheel. – Pull off the setting wheel 1. –...

  • Page 31: Stitch Equality Of The Forward And Backward Stitch

    2.10 Stitch equality of the forward and backward stitch Caution: Risk of injury! Turn off the main switch. The stitch equality may only be adjusted with the sewing machine switched off. Standard checking The stitch length of the forward and backward stitch should be identical.

  • Page 32: Sewing Foot Lifting

    2.11 Sewing foot lifting 2.11.1 Mechanical sewing foot lifting Caution: Risk of injury! Turn off the main switch. Check and set the clearance of the lifting mechanism only with the sewing machine switched off. Standard checking The lifting shaft 6 is supposed to run softly but should have no end play.

  • Page 33: Height Of The Sewing Feet Arrested With Hand Lever

    2.11.2 Height of the sewing feet arrested with hand lever Caution: Risk of injury! Turn off the main switch. Check and set the sewing foot lifting only with the sewing machine switched off. Standard checking The sewing feet 4 are arrested in lifted position with the hand lever 1 for example in order to exchange the sewing feet or to run the sewing machine without any material or to wind up the hook thread.

  • Page 34: Height Of The Lifted Sewing Feet

    2.11.3 Height of the lifted sewing feet Caution: Risk of injury! Turn off the main switch. Check and set the height of the lifted sewing feet only with the sewing machine switched off. Standard checking The pneumatically driven or via knee lever lifted sewing feet 4 are supposed to have a distance of 20 mm to the throat plate when the needle bar is in its upper dead center.

  • Page 35: Thread-Guiding Parts

    2.12 Thread-guiding parts 2.12.1 Thread regulator Caution: Risk of injury! Turn off the main switch. Check and set the thread regulator only with the sewing machine switched off. Standard checking The position of the thread regulator 1 depends on the thickness of the material to be sewn, the thread size and the chosen stitch length.

  • Page 36: Thread Take-Up Spring

    2.12.2 Thread take-up spring Caution: Risk of injury! Turn off the main switch. Check and set the thread take-up spring only when the machine is switched off. Standard checking The standard setting for the spring travel and spring tension only apply to usual thread sizes.
  • Page 37 – Tighten screw 2 without changing the positions of the stopping collar 4 and the tension disc 3.

  • Page 38: Bobbin Winder

    2.13 Bobbin winder Caution: Risk of injury! Turn off the main switch. Check and set the bobbin winder only with the sewing machine switched off. Standard checking The bobbin winding operation must stop automatically when the bobbin is filled up to approx. 0.5 mm below the bobbin edge. The winder wheel must not have end play but its moving should not be to sluggish either.
  • Page 39 – Turn the spindle so that the tear-off knife 12 points to the fastening screw 1 on the right side. – Loosen the screw on the engagement block 14. – Set the winder flap so that between the thread on the bobbin and the winder flap remains a distance of 2 - 3 mm (insert a spacer).

  • Page 41: Thread Trimmer

    2.14 Thread trimmer 2.14.1 Mechanical part Caution: Risk of injury! Turn off the main switch. Check an set the thread trimmer only with the sewing machine switched off. Standard checking The hollow shaft in the arm should have no play. –...

  • Page 42: Thread Trimmer Cam Position

    2.14.2 Thread trimmer cam position Caution: Risk of injury! Turn off the main switch. Check an set the thread trimmer only with the sewing machine switched off. Standard checking In the looping stroke position, the thread trimmer cam 2 is to be positioned in such a way that the roller 3 is located in the recess of the cam.

  • Page 43: Play Between The Roller And The Control Cam

    2.14.3 Play between the roller and the control cam Caution: Risk of injury! Turn off the main switch. Check and set the thread trimmer cylinder only when the machine is switched off. Standard checking The cylinder should be set in a way that between roller 2 and thread trimmer cam 1 approx.

  • Page 44: Setting The Cutting Pressure

    2.14.4 Setting the cutting pressure Caution: Risk of injury! Turn off the main switch. Check and set the cutting pressure only when the machine is switched off. Standard checking The thread is to be trimmed safely with as little pressure as possible. A low trimming pressure keeps the knife wear low! It must be possible to safely trim two of the thickest sewing threads simultaneously.

  • Page 45: Potentiometer In The Arm

    2.15 Potentiometer in the arm Sewing machines with thread trimmer are equipped with a potentiometer in order to limit the sewing speed of higher sewing foot strokes. Through this potentiometer the control unit recognizes the sewing foot stroke and limits the sewing speed. 2.15.1 Basic setting without control panel Set sewing machines without control panel according to the following...

  • Page 46: Basic Setting With The Control Panel V810 Or V820

    2.15.2 Basic setting with the control panel V810 or V820 Caution: Risk of injury! The adjustment of the potentiometer is carried out with the main switch turned on. Work with utmost caution. – Loosen the stop screw 1 for the potentiometer 2. –...

  • Page 47: Check The Potentiometer Adjustment

    2.15.3 Check the potentiometer adjustment – Keep the key “P” pressed and turn on the main switch. – Enter the technician level. – Select the parameter “F-188“. – Actuate the key “E”. The current Speedomat grade and the corresponding sewing speed limitation are displayed.

  • Page 48: Connections Pcb

    2.16 Connections PCB For the sake of completeness, the various connections of the PCB below are explained here. X11 Control Sewing Drive X12 Solenoid Thread Tension X13 Solenoid Additional Thread Tension X14 Solenoid X15 Solenoid Sewing Foot X16 Solenoid Tack Stroke Adjustment Pneum.

  • Page 49: Oil Lubrication

    Oil lubrication Caution: Risk of injury! Oil can cause skin rashes. Avoid longer skin contact. After contact wash yourself thoroughly. ATTENTION! The handling and disposal of mineral oils is subject to legal regulations. Deliver used oil to an authorized collecting station. Protect your environment.

  • Page 50: Hook Lubrication

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

  • Page 51: Maintenance

    Maintenance Caution: Risk of injury! Turn the main switch off. The maintenance may only be carried out with the sewing machine switched off! The daily or weekly maintenance work (cleaning and oiling) to be carried out by the operators of the sewing machine is described in the operating instructions (part 1).
  • Page 52 Notes:...

Table of Contents