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

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Summary of Contents for Dürkopp Adler 867

  • Page 1 Service Instructions...
  • Page 2 IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE All rights reserved. Property of Dürkopp Adler AG and protected by copyright. Any reuse of these contents, including extracts, is prohibited without the prior written approval of Dürkopp Adler AG. Copyright © Dürkopp Adler AG 2017...
  • Page 3 Setting the stroke movement ............ 42 8.3.2 Setting the compensating weight..........43 Feed dog stroke (adjustable stroke eccentric)......44 8.4.1 Setting the stroke movement ............ 44 8.4.2 Setting the stroke eccentric ............45 Service Instructions 867 - 03.0 - 10/2017...
  • Page 4 Setting the torque ..............94 Machines with integrated motor..........95 19.1 Overview of the components ............ 95 19.2 Disassembling the drive............96 19.3 Assembling the drive ..............99 19.4 Replacing the fuse ..............103 Service Instructions 867 - 03.0 - 10/2017...
  • Page 5 22.2.3 Cleaning the filter element ............118 22.3 Cleaning work ................. 119 22.3.1 Cleaning the machine ............. 119 22.3.2 Clean the motor fan sieve............120 22.4 Checking the toothed belt ............121 Decommissioning..............123 Disposal................. 125 Service Instructions 867 - 03.0 - 10/2017...
  • Page 6 Table of Contents Service Instructions 867 - 03.0 - 10/2017...

  • Page 7: About These Instructions

    Steps to be performed when operating the machine (sewing and equipping) Steps to be performed for service, maintenance, and installation Steps to be performed via the software control panel Service Instructions 867 - 03.0 - 10/2017...
  • Page 8 Safety ( p. 9). If no other clear location information is used in a figure, indications of right Location information or left are always from the user's point of view. Service Instructions 867 - 03.0 - 10/2017...

  • Page 9: Other Documents

    Leave machines, equipment and packaging material in the condition in which they were found when the damage was discovered. This will ensure any claims against the transport company. Report all other complaints to Dürkopp Adler immediately after receiving the product. Service Instructions 867 - 03.0 - 10/2017...
  • Page 10 About these instructions Service Instructions 867 - 03.0 - 10/2017...

  • Page 11: Safety

    • set up the machine • perform maintenance work and repairs • perform work on electrical equipment Only authorized persons may work on the machine and must first have understood these instructions. Service Instructions 867 - 03.0 - 10/2017...

  • Page 12: Signal Words And Symbols Used In Warnings

    If ignored, environmental damage can result NOTICE (without hazard symbol) If ignored, property damage can result The following symbols indicate the type of danger to personnel: Symbols Symbol Type of danger General Electric shock Service Instructions 867 - 03.0 - 10/2017...
  • Page 13 Type and source of danger! Consequences of non-compliance. Measures for avoiding the danger.  This is what a warning looks like for a hazard that could result in moderate or minor injury if the warning is ignored. Service Instructions 867 - 03.0 - 10/2017...
  • Page 14 NOTICE Type and source of danger! Consequences of non-compliance. Measures for avoiding the danger.  This is what a warning looks like for a hazard that could result in property damage if ignored. Service Instructions 867 - 03.0 - 10/2017...

  • Page 15: Working Basis

    Machine damage and malfunctions can be caused by laying the cables incorrectly. Excess cabling may obstruct moving machine parts in their ability to function correctly. This will affect the sewing function and may cause damage. Lay excess cabling as described above. Service Instructions 867 - 03.0 - 10/2017...

  • Page 16: Removing The Covers

    Fig. 1: Tilting and erecting the machine upper section Tilting the machine upper section 1. Tilt the machine upper section as far as it will go. Erecting the machine upper section 1. Raise the machine upper section. Service Instructions 867 - 03.0 - 10/2017...

  • Page 17: Removing And Fitting The Arm Cover

    3. Hold the arm cover (3) at the adjusting wheels and remove it. Fitting the arm cover 1. Position the left adjusting wheel for the sewing foot stroke (2) to 2. 2. Fit the arm cover (3). 3. Tighten the screws (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 18: Removing And Fitting The Head Cover

    1. Fit the head cover (2). 2. Tighten the screws (1). 3.3.4 Removing and fitting the valve cover Fig. 4: Removing and fitting the valve cover ① ② (1) - Screws (2) - Valve cover Service Instructions 867 - 03.0 - 10/2017...

  • Page 19: Opening And Closing The Throat Plate Slide

    Opening the throat plate slide 1. Press the clamping spring (3) downwards. 2. Push the throat plate slide (1) apart. Closing the throat plate slide 1. Screw the throat plate slide (1) to the throat plate (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 20: Removing And Installing The Throat Plate

    1. Insert the throat plate (2), ensuring that the nose (3) of the bobbin housing (4) is in the cutout of the throat plate. 2. Tighten both screws (1). 3. Close the throat plate slide ( p. 17). Service Instructions 867 - 03.0 - 10/2017...

  • Page 21: Removing And Installing The Feed-Dog

    (depending on the equipment: 6, 9 or 12) by turning the hand- wheel. The feed-dog must not hit against the throat plate. Order Then check the following setting: • Feed-dog ( p. 38) Service Instructions 867 - 03.0 - 10/2017...

  • Page 22: Surfaces On Shafts

    Fig. 9: Locking peg and arresting grooves on the arm shaft crank ④ ③ ② ① (1) - Locking peg (3) - Small arresting groove (2) - Large arresting groove (4) - Arm shaft crank Service Instructions 867 - 03.0 - 10/2017...
  • Page 23 3. Insert the locking peg (3) with the appropriate end into the groove (1). Removing the locking mechanism 1. Pull the locking peg (3) out of the groove (1). 2. Insert the plug into the locking opening (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 24: Putting The Handwheel Into Position

    Fig. 11: Putting the handwheel into position ① ② (1) - Graduated scale (2) - Marking Setting steps 1. Turn the handwheel until the specified number on the graduated scale (1) is next to the marking (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 25: Setting The Handwheel Scale

    (2). 7. Tighten the setscrew through the opening (1).  8. Remove the lock ( p. 21). 9. Put the handwheel into the 50° position. 10. Tighten the setscrew through the opening (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 26: Positioning The Arm Shaft

    3. Push the arm shaft (1) to the right as far as it will go and flush with the machine casting. 4. Screw all setscrews (3) on the arm shaft crank (1) firmly in place. Service Instructions 867 - 03.0 - 10/2017...

  • Page 27: Positioning The Toothed Belt Wheels

    Therefore, you must first align the upper toothed belt wheel on the winder wheel and then align the lower toothed belt such that the toothed belt runs correctly over both wheels. Service Instructions 867 - 03.0 - 10/2017...

  • Page 28: Upper Toothed Belt Wheel

    (2) can be reached. 2. Loosen the setscrews (2). 3. Turn the upper toothed belt wheel (1) such that the setscrews (2) are seated completely on the surface (5) of the arm shaft. Service Instructions 867 - 03.0 - 10/2017...

  • Page 29: Lower Toothed Belt Wheel

    • Tilt the upper section ( p. 14) Fig. 15: Setting the lower toothed belt wheel (1) - Toothed belt (3) - Lower toothed belt wheel (2) - Retaining ring (4) - Setscrews Service Instructions 867 - 03.0 - 10/2017...
  • Page 30 3. Move the lower toothed belt wheel (3) to the side such that the toothed belt (1) makes contact with the retaining ring (2), without being pushed away. 4. Tighten the setscrews (4). Service Instructions 867 - 03.0 - 10/2017...

  • Page 31: Setting The Stitch Length Adjusting Wheels

    An automatic switchover to the upper adjusting wheel is made when you switch the machine off at the main switch. Order Set the upper stitch length adjusting wheel first and then the lower stitch length adjusting wheel. Service Instructions 867 - 03.0 - 10/2017...

  • Page 32: Setting The Upper Stitch Length Adjusting Wheel

    (4) - Adjusting mark 2. Hold the upper stitch length adjusting wheel (1) using a key (7). 3. Loosen the screw (2). 4. Remove the upper stitch length adjusting wheel (1) from the shaft (5). Service Instructions 867 - 03.0 - 10/2017...
  • Page 33 12. Remove the tension spring (10). 13. Loosen the screw (11). 14. Manually position the plates (8) so that they are parallel. 15. Tighten the screw (11). 16. Attach the tension spring (10). Service Instructions 867 - 03.0 - 10/2017...

  • Page 34: Setting The Lower Stitch Length Adjusting Wheel

    1. Position the upper stitch length adjusting wheel (2) > 3. 2. Switch machine to short stitch length.  The key for the stitch length (1) does not light up. If the key lights up, press key (1) again. Service Instructions 867 - 03.0 - 10/2017...
  • Page 35 10. Place the lower stitch length adjusting wheel (3) onto the shaft (5) and tighten it with a wrench (7). 11. Screw down the lower stitch length adjusting wheel (3) using screw (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 36: Setting The Stitch Length Limit

     The upper stitch length adjusting wheel can only be turned up to the maximum stitch length set. Fig. 21: Setting the stitch length limit (1) - Upper stitch length adjusting wheel (3) - Mark-off openings (2) - Screw Service Instructions 867 - 03.0 - 10/2017...

  • Page 37: Setting The Eccentric For The Forward And Backward Stitches

    Cover • Tilt the upper section ( p. 14) Fig. 22: Setting the eccentric for the forward and backward stitches (1) - Clamp (3) - Eccentric screw (2) - Setscrew (4) - Recess Service Instructions 867 - 03.0 - 10/2017...
  • Page 38 If the forward and backward stitches are not the same length: • Turning clockwise: The forward stitch becomes larger, the backward stitch smaller. • Turning counterclockwise: The forward stitch becomes smaller, the backward stitch larger. 3. Tighten the setscrew (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 39: Setting The Feed-Dog

    • For minimal deviations, it suffices to move the feed-dog on the carrier ( p. 38). • If this is not sufficient, move the entire feed-dog carrier on the sliding shaft ( p. 39). Service Instructions 867 - 03.0 - 10/2017...

  • Page 40: Moving The Feed-Dog

    2. Move the feed-dog (1) on the feed-dog carrier (2). Place the removed throat plate next to it as an aid for orientation so that the feed-dog can be screwed on straight. 3. Tighten the screws (3). Service Instructions 867 - 03.0 - 10/2017...

  • Page 41: Moving The Feed-Dog Carrier

    9. Tighten the rear screw (6). 10. Tighten the connection to the tie rod using the screws (1). In the process, make sure that the feed-dog height has the correct setting ( p. 41). Service Instructions 867 - 03.0 - 10/2017...

  • Page 42: Setting The Feed-Dog Movement

    (3) - Stitch adjustment lever (2) - Pusher eccentric Setting steps 1. Set the upper stitch length adjusting wheel to the maximum stitch length. 2. Unscrew the setscrews (1). 3. Put the handwheel into the 190° position. Service Instructions 867 - 03.0 - 10/2017...

  • Page 43: Setting The Feed-Dog Height In The Top Dead Center

    2. Loosen the setscrews (2) on the lever (1) at the left, above the hook. 3. Turn the lever (1) such that the upper edge of the feed-dog protrudes 0.5 mm (STC = 0.8 mm) above the throat plate. 4. Tighten the setscrews (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 44: Feed Dog Stroke (Default)

    • Tilt the upper section ( p. 14) Fig. 27: Setting the feed-dog lift ① ② (1) - Setscrews (2) - Stroke eccentric Setting steps 1. Unscrew the setscrews (1). 2. Put the handwheel into the 90° position. Service Instructions 867 - 03.0 - 10/2017...

  • Page 45: Setting The Compensating Weight

    (3) - Base plate (2) - Compensating weight Setting steps 1. Put the handwheel into the 210° position. 2. Unscrew the setscrew (1) and leave the hex key inserted in the set- screw. Service Instructions 867 - 03.0 - 10/2017...

  • Page 46: Feed Dog Stroke (Adjustable Stroke Eccentric)

    At 90°, the feed dog is moving upward, at 270°, it is moving downward. Cover • Tilt the machine head ( p. 14) Fig. 29: Setting the stroke movement ① ② (1) - Threaded pins (2) - Stroke eccentric Service Instructions 867 - 03.0 - 10/2017...

  • Page 47: Setting The Stroke Eccentric

    Cover • Tilt the machine head ( p. 14) Fig. 30: Setting the stroke eccentric ① ③ ② (1) - Screws (3) - Disk (2) - Grain Service Instructions 867 - 03.0 - 10/2017...
  • Page 48 If the sheet of paper cannot be slid or is crushed between feed dog and thread-pulling knife, the feed dog stroke must be reduced. Service Instructions 867 - 03.0 - 10/2017...

  • Page 49: Aligning The Needle Bar Linkage

    1. Set the upper and lower stitch length adjusting wheel to 0. 2. Loosen the setscrews (1) on the two adjusting rings (2) at the right- hand end of the shaft for the needle bar linkage. Service Instructions 867 - 03.0 - 10/2017...
  • Page 50 8. Tighten both setscrews (6) on the arm shaft crank (5). Order Then check the following settings: • Loop stroke position ( p. 52) • Distance of the hook to the needle ( p. 50) Service Instructions 867 - 03.0 - 10/2017...

  • Page 51: Aligning The Needle Bar Linkage In The Sewing Direction

    4. Loosen the screw (5). 5. Position the lever (3). 6. Tighten the setscrews (4). 7. Tighten the screw (5). Order Then check the following setting: • Loop stroke position ( p. 52) Service Instructions 867 - 03.0 - 10/2017...

  • Page 52: Position Of The Hook And Needle

    Machine locked in place at position 1 ( p. 21).  Maximum 0.1 mm distance between the hook tip and the groove for the needle. Cover • Tilt the upper section ( p. 14) • Throat plate slide ( p. 17) Service Instructions 867 - 03.0 - 10/2017...
  • Page 53 7. Tighten the setscrews (2) for the hook clamping ring (1).  8. Remove the lock ( p. 21). Order Then check the following setting: • Position of the needle guard ( p. 54) Service Instructions 867 - 03.0 - 10/2017...

  • Page 54: Setting The Loop Stroke Position

    Machine is locked in place at position 1 ( p. 21).  The hook tip (2) points exactly to the vertical center line (1) of the needle. Fault caused by an incorrect setting • Missing stitches Service Instructions 867 - 03.0 - 10/2017...
  • Page 55 6. Remove the lock ( p. 21). Order Then check the following settings: • Position of the needle guard ( p. 54) • Point in time in cutting for the thread cutter ( p. 78) Service Instructions 867 - 03.0 - 10/2017...

  • Page 56: Adjusting The Needle Guard

    Machine locked in place at position 1 ( p. 21).  The needle guard pushes the needle just enough away so that it can- not be touched by the hook tip. Cover • Feed-dog ( p. 19) Service Instructions 867 - 03.0 - 10/2017...

  • Page 57: Setting The Needle Bar Height

    Machine locked in place in position 1 ( p. 21) and upper stitch length adjusting wheel set to 0.  The hook tip is at the level of the lower third of the groove for the nee- dle. Service Instructions 867 - 03.0 - 10/2017...
  • Page 58 5. Tighten the screw (2) for the needle bar (1).  6. Remove the lock ( p. 21). Order Then check the following setting: • Position of the needle guard ( p. 54) Service Instructions 867 - 03.0 - 10/2017...

  • Page 59: Setting The Spool Housing Lifter

    Faults caused by an incorrect setting: • Thread breakage • Formation of loops on the bottom side of the seam • Loud machine noise Service Instructions 867 - 03.0 - 10/2017...

  • Page 60: Setting The Lifting Gap

    While doing so, ensure that the gap is not so big that the middle part of the hook swings to and fro, hitting the recess in the throat plate. 5. Tighten the setscrew (1). 6. Push the cover (2) upwards. 7. Tighten the screw (3). Service Instructions 867 - 03.0 - 10/2017...

  • Page 61: Setting The Point In Time Of Opening

    4. Use the hex key to turn the control cam (3) such that the spool housing lifter opens at the correct point in time. 5. Tighten the setscrew (4). 6. Insert the plug (1) into the opening. Service Instructions 867 - 03.0 - 10/2017...

  • Page 62: Sewing Feet

    (2) - Feeding foot ATTENTION Machine damage possible if the adjusting wheels are turned using brute force Do not attempt to use brute force to set a smaller sewing foot stroke at the right adjusting wheel. Service Instructions 867 - 03.0 - 10/2017...

  • Page 63: Setting An Even Sewing Foot Stroke

    While doing so, make sure that the feeding foot is only lowered down to the throat plate. Do not inadvertently lower the feeding foot through the throat plate cut-out down to the feed-dog. 4. Tighten the screw (3). Service Instructions 867 - 03.0 - 10/2017...

  • Page 64: Setting The Stroke Movement For The Feeding Foot

    This will occur when the handwheel is in the 95° position. Fig. 44: Stroke movement for the feeding foot and feed-dog (1) - Feeding foot (3) - Needle tip (2) - Feed-dog Cover  • Arm cover ( p. 15) Service Instructions 867 - 03.0 - 10/2017...

  • Page 65: Setting Presser Foot Pressure

    The correct pressure depends on the material to be sewn: • Lower pressure for soft materials, e.g. silk • Higher pressure for harder materials, e.g. leather Proper setting The material being sewn does not slip and is correctly transported. Service Instructions 867 - 03.0 - 10/2017...

  • Page 66: Setting The Sewing Foot Lifting Height

    Proper setting The distance between the raised sewing feet and the throat plate is preset to 25 mm on delivery. Service Instructions 867 - 03.0 - 10/2017...
  • Page 67 • To raise the sewing feet to a lesser height: Turn it clockwise • To raise the sewing feet higher: Turn it counterclockwise 3. Tighten the counternut (2) for the adjusting screw (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 68: Setting Needle Thread Tension

    Fig. 48: Setting the thread regulator (1) - Thread regulator (2) - Screw 1 2 3 4 Setting steps 1. Turn the handwheel and observe the cycle of the needle thread around the hook. Service Instructions 867 - 03.0 - 10/2017...

  • Page 69: Setting The Thread Tensioning Spring

    Fig. 49: Setting the thread tensioning spring (1) - Stop collar (3) - Tensioning spring (2) - Spring (4) - Screw Setting steps 1. Loosen the screw (4). Service Instructions 867 - 03.0 - 10/2017...
  • Page 70 3. Setting the spring tension: Turn the tension disc (3): • Greater spring tension: Turn to the left: • Less spring tension: Turn to the right: Do not twist the stop collar in doing so. 4. Tighten the screw (4). Service Instructions 867 - 03.0 - 10/2017...

  • Page 71: Winder

    1. Loosen both setscrews (1). 2. Move the driver wheel (2) to the right or left such that distance to the winder wheel (3) is exactly 0.8 mm. 3. Screw both setscrews (1) firmly in place. Service Instructions 867 - 03.0 - 10/2017...

  • Page 72: Setting The Winder

    • Further apart from each other: Automatic stop with smaller filling quantity 3. Turn the screw (2): • Arms closer together: Turn it counterclockwise • Arms further apart from each other: Turn it clockwise Service Instructions 867 - 03.0 - 10/2017...
  • Page 73 10. Turn the winder spindle (12) such that the tear-off knife (11) is at the top right and is facing the right-hand screw hole (13). 11. Loosen the setscrew in the clamp (5). Service Instructions 867 - 03.0 - 10/2017...
  • Page 74 15. Tighten the setscrew in the clamp (5). Fig. 54: Installing the winder (1) - Screws (2) - Marking for XXL hook Installing the winder 16. Fit the winder on the machine arm. 17. Tighten the screws (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 75: Setting The Hook Thread Guide

    2. Turn the hook thread guide (2): • To the front: The thread will be wound on further to the front • To the rear: The thread will be wound on further to the rear Service Instructions 867 - 03.0 - 10/2017...

  • Page 76: Thread Cutter

    (4) - Thread-pulling knife (2) - Thread-pulling knife (5) - Distance (3) - Hook bearing mounting surface (6) - Screw Setting steps 1. Loosen the screw (6). 2. Remove the thread-pulling knife (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 77: Setting The Cutoff Curve

    (7) - Actuating lever (3) - Roller (8) - Clamping ring (4) - Control cam (9) - Solenoid (5) - Setscrews Setting steps 1. Loosen all four setscrews (2) on the clamping ring (1). Service Instructions 867 - 03.0 - 10/2017...
  • Page 78 13. Push the clamping ring (1) to the right as far as it will go and against the control cam (4). 14. Check the loop stroke position ( S. 52). 15. Tighten all four setscrews (2) on the clamping ring (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 79: Setting The Cutting Pressure

    (5) - Hook thread clamp (3) - Thread-pulling knife (6) - Screw Setting steps 1. Turn the handwheel until the thread-pulling knife (3) can be swung out by hand. 2. Loosen the screw (1). Service Instructions 867 - 03.0 - 10/2017...

  • Page 80: Adjusting The Needle Thread Tension

    The control cam for the left-hand needle or the left-hand hook support is identified by an L and an arrow for the direction of rotation. Cover • Tilt the upper section ( p. 14) • Throat plate slide ( p. 17) Service Instructions 867 - 03.0 - 10/2017...
  • Page 81 • Insert the thread into thread-pulling knife (6) and slowly turn the handwheel. • Determine the handwheel position at which the thread is cut. • If necessary, repeat setting steps 1 – 7 until the cut takes place at 60°. Service Instructions 867 - 03.0 - 10/2017...
  • Page 82 Thread cutter Service Instructions 867 - 03.0 - 10/2017...

  • Page 83: Short Thread Cutter (Kfa)

    The height of the thread-pulling knife has been set at the factory using ad- justing washers between thread-pulling knife (1) and knife carrier (3). When changing the knives make sure that you do not lose the adjusting washers. Service Instructions 867 - 03.0 - 10/2017...
  • Page 84 (label is upside down) of the clamping ring (4). The control cam (5) makes contact with the clamping ring (4). The label of the control cam (5) is correct in accordance with the installa- tion situation. Service Instructions 867 - 03.0 - 10/2017...

  • Page 85: Setting The Locking Latch

    (1) and locking pin (6) is not greater than 0.1 mm. Setting steps 1. Loosen the nut (4). 2. Turn the screw (5) and adjust the distance. 3. Tighten the nut (4). Service Instructions 867 - 03.0 - 10/2017...

  • Page 86: Setting The Thread-Pulling Knife

    • The marking (3) on the thread-pulling knife (1) is adjacent to the cutting edge of the counter-blade (2) • The knife carrier (4) must have no axial play, but still run smoothly Service Instructions 867 - 03.0 - 10/2017...
  • Page 87 10. Loosen all 4 screws (6) on the clamping ring and push the clamping ring (6) as far as it will go and against the control cam (7). 11. Tighten all 4 screws on the clamping ring (6). 12. Check the loop stroke. Service Instructions 867 - 03.0 - 10/2017...

  • Page 88: Setting The Counter-Blade

    5. Check whether the sewing threads have been cleanly cut and pressure is built up starting at the marking (2). Faults caused by an incorrect setting • Increased knife wear when the pressure is too great • Problems in cutting the thread Service Instructions 867 - 03.0 - 10/2017...
  • Page 89 1. Swing out the thread-pulling knife (1) until the marking (2) is next to the cutting edge of the counter-blade (5). 2. Loosen the screw (6). 3. Place the counter-blade (5) in position against the thread-pulling knife (1). 4. Tighten the screw (6). Service Instructions 867 - 03.0 - 10/2017...

  • Page 90: Setting The Cutoff Position

    5. Use the handwheel to turn the machine until the thread is cut shortly before reaching the marking (2). 6. Check if the cut was made at the 65° position on the handwheel. Service Instructions 867 - 03.0 - 10/2017...
  • Page 91 (5). 3. Re-tighten the setscrews (6) on the control cam (5). 4. Check the position as described above under Proper setting and cor- rect the position again if necessary. Service Instructions 867 - 03.0 - 10/2017...
  • Page 92 Short thread cutter (KFA) Service Instructions 867 - 03.0 - 10/2017...

  • Page 93: Setting The Potentiometer

    3. Release the P key (2) and the reset key (3).  The display indicates the current level. The potentiometer is set at technician level t 10 04. If the display indicates a different level: Service Instructions 867 - 03.0 - 10/2017...
  • Page 94 13. Press the ESC key two times. Important: 14. Switch off the machine at the main switch. 15. Switch on the machine at the main switch.  Switching off and on will save the setting. Service Instructions 867 - 03.0 - 10/2017...

  • Page 95: Setting The Safety Snap-On Coupling

    (3) - Safety snap-on coupling (7) - Coupling screw (4) - Right-hand adjusting ring Setting steps 1. Turn the left adjusting ring (2) such that the setscrews (1) are parallel to one another.  The coupling engages. Service Instructions 867 - 03.0 - 10/2017...

  • Page 96: Setting The Torque

    2. Using the screwdriver, turn the disc on the setting slot (5) such that 8 Nm is reached for the torque: • To increase the force: Turn in the + direction • To reduce the force: Turn in the – direction 3. Tighten the screw (7). Service Instructions 867 - 03.0 - 10/2017...

  • Page 97: Machines With Integrated Motor

    ③ ④ ⑤ ⑥ ⑦ ⑧ (1) - Handwheel (5) - Cover plate (2) - Handwheel flange (6) - Stator (3) - Encoder (7) - Ring (4) - Encoder disc (8) - Rotor Service Instructions 867 - 03.0 - 10/2017...

  • Page 98: Disassembling The Drive

    2. Carefully remove the upper cover (2) from the side, paying attention to the dial (3) in doing so. 3. If there is a lower cover mounted: Undo all three screws (4) and remove the lower cover (5). Service Instructions 867 - 03.0 - 10/2017...
  • Page 99 4. Undo both screws for the encoder (2). 5. Undo the screw for the encoder disc (1). 6. Carefully and uniformly pull the encoder (2) and encoder disc (1) away from the shaft. Service Instructions 867 - 03.0 - 10/2017...
  • Page 100 (3) - Rotor with deep groove ball bearing (2) - Threaded screw 1. Remove the arm cover. 2. Undo all four threaded screws (1, 2). 3. Remove the rotor with deep groove ball bearing (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 101: Assembling The Drive

    2. Screw all four threaded screws (1, 2) firmly in place, observing the surface of the shaft in doing so: Screw the first screw in the direction of rotation firmly in place on the surface. Service Instructions 867 - 03.0 - 10/2017...
  • Page 102 2. Fit the cover plate (2). 3. Evenly screw all three screws (1) firmly in place such that a uniform gap exists between the cover plate (2) and shaft. Service Instructions 867 - 03.0 - 10/2017...
  • Page 103 Attaching Fig. 81: Attaching the cover the cover ① ② ③ ④ ⑤ (1) - Screws (4) - Screws (2) - Upper cover (5) - Lower cover (3) - Dial (depending on machine) Service Instructions 867 - 03.0 - 10/2017...
  • Page 104 (1) - Handwheel flange (3) - Marking for handwheel flange (2) - Cover marking (4) - Setscrews 1. Attach the handwheel flange (1) such that the two markings (2, 3) are in line. Service Instructions 867 - 03.0 - 10/2017...

  • Page 105: Replacing The Fuse

    2. Set the zero point via the control, see  manual for the control unit. 19.4 Replacing the fuse The fuse is for the built-in sewing lamp transformer. Fig. 85: Replacing the fuse ① (1) - Fuse 1. Replace the fuse. Value: 0.63 A T. Service Instructions 867 - 03.0 - 10/2017...

  • Page 106: Replacing The Pcb

    1. Disconnect plugs 2. Undo screws (1) for mounting plate of PCB 3. Replace the PCB (2). 4. Tighten the screws (1). 5. Insert plugs. Important: Ensure that the motor is correctly connected. Service Instructions 867 - 03.0 - 10/2017...

  • Page 107: Special Machines

    1. Set stitch length adjusting wheel to 0. 2. Lock the sewing machine in place at position 1 ( p. 21). 3. Check the position of the needle in relation to the hook tip. Service Instructions 867 - 03.0 - 10/2017...
  • Page 108 (4) rests in the hexagon socket of the set screw (6). 6. Tighten the setscrew (2). Order After correcting the needle bar height, check the position of the needle guard ( p. 54). Service Instructions 867 - 03.0 - 10/2017...

  • Page 109: Adjusting The Slide For The Needle Bars

    (3) - Peg (2) - Screws (4) - Center of pin Setting steps 1. Loosen the screws (2). 2. Adjust slide (1). 3. Tighten the screws (2). 4. Check whether the needle bars switch cleanly. Service Instructions 867 - 03.0 - 10/2017...

  • Page 110: Machines With Moving Binder

    (3) - Lower shaft (6) - Screw Basic setting for synchronous operation 1. Set the handwheel to 100°.  The shaft (2) must be parallel to the lower shaft (3). 2. Remove the shaft (2). Service Instructions 867 - 03.0 - 10/2017...

  • Page 111: Machines With A Vertical Cutter

    The cutter should cut the sewing material when material is not being fed. Cover Head cover ( p. 16) Fig. 91: Adjusting the vertical cutter I ① ② ③ (1) - Vertical cutter (2) - Toothed belt wheel (3) - Screws Service Instructions 867 - 03.0 - 10/2017...
  • Page 112 2. Release the nut (3). 3. Turn the screw (4): • Turn screw upwards = stroke higher • Turn screw downwards = stroke smaller 4. Tighten the nut (3). 5. Correct cutter overlap. Service Instructions 867 - 03.0 - 10/2017...
  • Page 113 (4) - Cutter (6) - Cutter holder (5) - Counter-blade (7) - Screws The cutter (2) should be somewhat diagonal to the counter-blade (3). The cutter (2) should cut reliably with the least possible pressure. Service Instructions 867 - 03.0 - 10/2017...

  • Page 114: Activating The Tensioner Lift

     You are on the technician level. 2. Use the buttons under the display to select the parameter t 09 00. 3. Use +/- to enter the desired value ( Parameter list 867). 4. Confirm with Service Instructions 867 - 03.0 - 10/2017...

  • Page 115: Maintenance Work

    DA 10 can be obtained under the following part number at DA sales offic- • 9047 000011 - 250 ml • 9047 000012 - 1 l • 9047 000013 - 2 l • 9047 000014 - 5 l Service Instructions 867 - 03.0 - 10/2017...

  • Page 116: Lubrication Of The Upper Part Of The Machine

    If the oil level falls below the minimum level marking (3), the oil level indi- cator lights up in red. 1. Turn the sewing machine off, then on again after refilling oil.  The red light will turn off. Service Instructions 867 - 03.0 - 10/2017...

  • Page 117: Hook Lubrication

    • Turn clockwise: less oil is released The released amount of oil does not change until the operating time has run a few minutes. Sew for several minutes before you check the setting again. Service Instructions 867 - 03.0 - 10/2017...

  • Page 118: Pneumatic System

    1. Pull the adjustment knob (1) up. 2. Turn the turning handle until the pressure indicator (2) indicates 6 bar: • clockwise: to increase pressure • counterclockwise: to reduce pressure 3. Push the adjustment knob (1) down. Service Instructions 867 - 03.0 - 10/2017...

  • Page 119: Draining The Water Condensation

    Maintenance steps 1. Place the collection tray under the drain screw (3). 2. Unscrew the drain screw (3) completely. 3. Allow water to drain into the collection tray. 4. Tighten the drain screw (3). Service Instructions 867 - 03.0 - 10/2017...

  • Page 120: Cleaning The Filter Element

    4. Blow out the filter element (1) using a compressed-air pistol. 5. Wash out the filter tray using benzine. 6. Tighten the filter element (1). 7. Tighten the water separator (2). 8. Tighten the drain screw (3). Service Instructions 867 - 03.0 - 10/2017...

  • Page 121: Cleaning Work

    (4) - Cutter on the bobbin winder Areas particularly susceptible to soiling: • Cutter on the bobbin winder for the hook thread (4) • Area under the throat plate (3) • Hook (2) • Area around the needle (1) Service Instructions 867 - 03.0 - 10/2017...

  • Page 122: Clean The Motor Fan Sieve

    Fig. 101: Clean the motor fan sieve (1) - Table plate (2) - Motor fan sieve Cleaning steps 1. Remove any sewing dust and thread remains using a compressed-air pistol. Service Instructions 867 - 03.0 - 10/2017...

  • Page 123: Checking The Toothed Belt

    A damaged toothed belt must be replaced immediately. Proper setting • The toothed belt exhibits no cracks or fragile areas. • When pressed with a finger, the toothed belt gives no more than 10 mm. Service Instructions 867 - 03.0 - 10/2017...
  • Page 124 Maintenance work Service Instructions 867 - 03.0 - 10/2017...

  • Page 125: Decommissioning

    5. Cover the control panel to protect it from soiling. 6. Cover the control to protect it from soiling. 7. Cover the entire machine if possible to protect it from contamination and damage. Service Instructions 867 - 03.0 - 10/2017...
  • Page 126 Decommissioning Service Instructions 867 - 03.0 - 10/2017...

  • Page 127: Disposal

    When disposing of the machine, be aware that it consists of a range of different materials (steel, plastic, electronic components, etc.). Follow the national regulations when disposing these materials. Service Instructions 867 - 03.0 - 10/2017...
  • Page 128 Disposal Service Instructions 867 - 03.0 - 10/2017...
  • Page 130 DÜRKOPP ADLER AG Potsdamer Straße 190 33719 Bielefeld GERMANY Phone +49 (0) 521 / 925-00 E-mail service@duerkopp-adler.com www.duerkopp-adler.com...

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