Dürkopp Adler 867 Service Instructions Manual
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Dürkopp Adler 867 Service Instructions Manual

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867
Spezialnähmaschine
D
Serviceanleitung
GB

Service instructions

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 5 21/ 9 25 - 00 • Telefax +49 (0) 5 21/ 9 25 24 35 • www.duerkopp-adler.com
Ausg./Edition: 01/2006
Printed in Federal Republic of Germany
Teile-Nr./Part-No.: 0791 867641

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  • Page 1: Service Instructions

    Service instructions Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 5 21/ 9 25 - 00 • Telefax +49 (0) 5 21/ 9 25 24 35 • www.duerkopp-adler.com Ausg./Edition: 01/2006 Printed in Federal Republic of Germany...

  • Page 2: 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 3: Table Of Contents

    Index Page: Service instructions class 867 General notes Gauges ........... . .
  • Page 4 Index Page: 2.12.2 Thread take-up spring ..........2.13 Bobbin winder .

  • Page 5: General Notes

    Hint: Some of the shafts of the special sewing machine 867 are provided with flat spots. This facilitates the adjustment considerably. In case of all adjustments on flat spots the first screw in rotation direction is put on such a flat spot.

  • Page 6: Description Of The Locking Positions

    1.2 Description of the locking positions With the locking pin 1 and the arresting grooves 2 and 3 in the arm shaft crank 4 the sewing machine can be arrested in two adjusting positions. Position I = Locking pin Ø 5 mm for large groove = Looping stroke, needle bar height Position II = Locking pin Ø...

  • Page 7: Graduation On The Handwheel

    1.3 Graduation on the handwheel The handwheel 2 has graduation printed on it. Certain settings shall be done following to the position of the handwheel. – Turn the handwheel until the degree mark mentioned in this manual points to the index 3. –...

  • Page 8: Sewing Machine

    Sewing machine 2.1 Position of the arm shaft crank on the arm shaft Caution: Danger of injury ! Turn the main switch off ! Check and set the position of the arm shaft crank only when the machine is switched off. Standard checking The arm shaft crank 1 is fastened on the arm shaft 4 with the three screws 2.

  • Page 9: Upper And Lower Toothed Belt Wheel / Toothed Belt

    2.2 Upper and lower toothed belt wheel / toothed belt 2.2.1 Position of the upper toothed belt wheel Caution: Danger of injury ! Turn the main switch off ! Check and set the position of the upper toothed belt wheel only with the sewing machine switched off.

  • Page 10: Position Of The Lower Toothed Belt Wheel

    2.2.2 Position of the lower toothed belt wheel Caution: Danger of injury ! Turn the main switch off ! 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 2 must sit on the flat spot 1 of the lower shaft 5.

  • Page 11: Bottom Feed And Stitch Regulator Gear

    2.3 Bottom feed and stitch regulator gear 2.3.1 Basic setting of stitch adjustment Caution: Danger of injury ! Turn the main switch off ! Set the basic setting of stitch adjustment only with the sewing machine switched off. Standard checking When the setting wheel 5 is in zero position, the stitch regulator gear should have the least clearance possible .
  • Page 12 Adjust eccentric The eccentric 3 has to be adjusted in such a way that the open side 4 of the eccentric slot superimposes the screw 2. – Loosen screw 2. – Through the hole 1, turn the eccentric 3 in such a way that the open side 4 of the eccentric slot be oriented to the screw 2.

  • Page 13: Adjust The 2Nd Stitch Length

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

  • Page 14: Position Of The Feed Dog In The Throat Plate Cutout

    2.3.3 Position of the feed dog in the throat plate cutout Caution: Danger of injury ! Turn the main switch off ! Set and check the feed dog and the stitch adjustment gear only with the sewing machine switched off. –...
  • Page 15 – Turn the stitch regulator handwheel to position “0". – Set the gear to “0". In order to do so turn the positioning frame14 so that the tongues come parallel to each other – Tighten the screw 13 on the block 12. –...

  • Page 16: Feeding Motion Of The Feed Dog

    2.3.4 Feeding motion of the feed dog Caution: Danger of injury ! Turn the main switch off ! Adjust the feeding motion of the feed dog only with the sewing machine switched off. Standard checking When the machine is in position “190°” the feed dog must not move upon actuating the stitch regulator lever if the maximum stitch length is set.

  • Page 17: Lifting Motion Of The Feed Dog

    2.3.5 Lifting motion of the feed dog Caution: Danger of injury ! Turn the main switch off ! Adjust the lifting motion of the feed dog only with the sewing machine switched off. Standard checking The feed dog is supposed to have the same distance to the throat plate at its front and backward dead center: –...

  • Page 18: Feed Dog Height

    2.3.6 Feed dog height Caution: Danger of injury ! Turn the main switch off ! Check and set the height of the feed dog only with the sewing machine switched off. Standard checking Machines without feed dog lifting device The feed dog is supposed to be on the same level as the throat plate. Machines with feed dog lifting device For a safe forward movement of the material the feed dog 2 must in its highest position be 0,5 mm above the throat plate surface.

  • Page 19: Balance Weight

    2.3.7 Balance weight Caution: Danger of injury ! Turn the main switch off ! Check and set the balance weight only with the sewing machine switched off. Standard checking The balance weight 1 has to be positioned in a way that, with the handwheel in position “210°”, an Allen key 3 stuck in stands parallel to the bed plate 2.

  • Page 20: Transmission Lever

    2.4 Transmission lever Caution: Danger of injury ! Turn the main switch off ! Check and set the transmission lever only with the sewing machine switched off. Standard checking The lever 3 transmits the movement of the advance shaft to the needle bar linkage.

  • Page 21: Needle Bar Linkage

    2.5 Needle bar linkage 2.5.1 Align the needle bar linkage laterally Caution: Danger of injury ! Turn the main switch off ! 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: Danger of injury ! Turn the main switch off ! Check and set the needle penetration only with the sewing machine switched off. Standard checking The needle is supposed to 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

    2.6 Hook, looping stroke and needle bar height 2.6.1 Looping stroke Caution: Danger of injury ! Turn the main switch off ! Check and set the looping stroke 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: Needle Bar Height

    2.6.2 Needle bar height Caution: Danger of injury ! Turn the main switch off ! Check and set the needle bar height only with the sewing machine switched off. Standard checking The needle bar’ s height is to be set in a way that the hook tip stands in the middle of the needle scarf with the stitch length set to “...

  • Page 25: Distance Between Hook And Needle

    2.6.3 Distance between hook and needle Caution: Danger of injury ! Turn the main switch off ! Check and set the hook distance only with the sewing machine switched off. Standard checking In looping stroke position the distance between the hook tip and the needle scarf is to be max.

  • Page 26: Needle Guard

    2.6.4 Needle guard Caution: Danger of injury ! Turn the main switch off ! Check and set the needle guard only with the sewing machine switched off. Standard checking The needle guard 2 is to prevent a contact of the needle with the hook tip.

  • Page 27: Bobbin Case Opening

    2.7 Bobbin case opening 2.7.1 General The thread lever has to pull the thread through between the bobbin case and its holder. For the thread to slip through without any hindrance the bobbing case must be opened in this particular moment. That way the desired seam pattern can be achieved with the lowest possible thread tension.
  • Page 28 Correction – Remove the plug on the hook housing 4. – Loosen the screw 5. – Adjust the bobbing case opener 3. – Tighten screw 5 again. – Reinsert the plug.

  • Page 29: Timing Of Opening

    2.7.3 Timing of opening Caution: Danger of injury ! Turn the main switch off ! Check and set bobbin case opener only with the sewing machine switched off. Standard checking After having taken up the loop, when the hook tip 2 is below the bobbin case opener (handwheel position 350°) the sewing thread should be able to slip through unimpededly between the bobbin case opening finger 3 and the bobbin case 1.

  • Page 30: Feeding Foot And Fabric Presser Foot

    2.8 Feeding foot and presser foot 2.8.1 Feeding foot and presser foot stroke Caution: Danger of injury ! Turn the main switch off ! Check and set 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 31: Stroke Motion Of The Feeding Foot

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

  • Page 32: 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 33: Stitch Length Limitation

    2.9 Stitch length limitation Depending on the sewing equipment used, the stitch length setting has to be limited to 6, 9 or 12 mm. – Unscrew the screw 2 on the stitch length setting wheel. – Lift off the setting wheel 1. –...

  • Page 34: Stitch Equality Of The Forward And Backward Stitch

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

  • Page 35: Sewing Foot Lifting

    2.11 Sewing foot lifting 211.1 Mechanical sewing foot lifting Caution: Danger of injury ! Turn the main switch off ! 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 36: Height Of The Sewing Feet Arrested With Hand Lever

    2.11.2 Height of the sewing feet arrested with hand lever Caution: Danger of injury ! Turn the main switch off ! 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 37: Height Of The Lifted Sewing Feet

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

  • Page 38: Thread-Guiding Parts

    2.12 Thread-guiding parts 2.12.1 Thread regulator Caution: Danger of injury ! Turn the main switch off ! 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 39: Thread Take-Up Spring

    2.12.2 Thread take-up spring Caution: Danger of injury ! Turn the main switch off ! Check and set the thread take-up spring only with the sewing machine switched off. Standard checking The standard setting for the spring travel and spring tension only apply to usual thread sizes.

  • Page 40: Bobbin Winder

    2.13 Bobbin winder Caution: Danger of injury ! Turn the main switch off ! 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 edge of the bobbin. The winder wheel must not have end play but its moving should not be to sluggish either.
  • Page 41 – Turn the winder bobbin 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 distance keeper).

  • Page 42: Thread Trimmer

    2.14 Thread trimmer 2.14.1 General regular hook extra large hook Thread-pulling knife height The thread-pulling knife is supposed to swing past the bobbin as close as possible. As standard a 0,1 mm thick disc is positioned between the hook housing and the knife carrier 1 in order to lower the thread-pulling knife 0,1 mm if necessary.

  • Page 43: Thread Pulling Knife

    2.14.2 Thread-pulling knife Caution: Danger of injury ! Turn the main switch off ! Check and set the thread-pulling knife only with the sewing machine turned off. Standard checking In the thread-pulling knife’s 1 resting position the distance between the control cam 5 (highest point) and the roller 7 should be 0,1 mm.

  • Page 44: Counter-Knife And Lower Thread Clamp

    2.14.3 Counter-knife and lower thread clamp Caution: Danger of injury ! Turn the main switch off ! Check and set the counter-knife and lower thread clamp only with the sewing machine turned off. Standard checking In the thread-pulling knife’s “parking position” the thread clamp 1 is supposed to bear without any pressure on the thread-pulling knife.
  • Page 45 Correction lower thread clamp – Loosen screw 4. – Turn the lower thread clamp 3 to the thread-pulling knife 1. – Fasten screw 4. Correction cutting pressure – Swing out the thread-pulling knife 1 far enough to have a distance of about 3 mm between the blades of the counter-knife 2 and the tread-pulling knife 1.

  • Page 46: Cutting Position With Machines Having Needle Repositioning

    2.14.4 Cutting position with machines having needle repositioning Caution: Danger of injury ! Turn the main switch off ! Check and set the cutting position only with the sewing machine switched off. Standard checking With the factory setting cutting position is the position “thread lever in its upper dead center”.

  • Page 47: Cutting Position With Machines Without Needle Repositioning

    2.14.5 Cutting position with machines without needle repositioning Caution: Danger of injury ! Turn the main switch off ! Check and set the cutting position only with the sewing machine switched off. Standard checking With the factory setting cutting position is the position “thread lever in its upper dead center”.

  • Page 48: 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 driving speed of higher sewing foot strokes. Through this potentiometer the control recognizes the sewing foot stroke and limits the driving speed. 2.15.1 Basic setting without control panel Set sewing machines without control panel according to the following...

  • Page 49: Basic Setting With The Control Panel V810 Or V820

    2.15.2 Basic setting with the control panel V810 or V820 Caution: Danger of injury ! Adjust the potentiometer only with the main switch switched off. Work with utmost caution. – Loosen the stop screw 1 for the potentiometer 2. – Keep the key “P”...

  • Page 50: Check The Potentiometer Adjustment

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

  • Page 51: Oil Lubrication

    DA-10 or an equivalent oil with the following specification: – Viscosity at 40° C: 10 mm²/s – Ignition point: 150° C DA-10 can be bought at the sales points of DÜRKOPP ADLER AG under the following parts number: 250 ml-Container: 9047 000011 1-Litre-Container: 9047 000012 2-Litre-Container:...

  • Page 52: Hook Lubrication

    2.16.1 Hook lubrication Caution: Danger of injury ! Turn the main switch off ! 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 has been adjusted by the manufacturer.

  • Page 53: Maintenance

    2.17 Maintenance Caution: Danger of injury ! Turn the main switch off ! The maintenance of the sewing machine must only be done when the machine is 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 54 Notes:...

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