DURKOPP ADLER 755 A Service Instructions Manual
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DURKOPP ADLER 755 A Service Instructions Manual

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755 A / 756 A
Service Instructions

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Summary of Contents for DURKOPP ADLER 755 A

  • Page 1 755 A / 756 A 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 2019...

  • Page 3: Table Of Contents

    7.5.1 Setting the timing for opening ............. 72 7.5.2 Setting the lifting gap ..............74 Setting the safety clutch ............75 Engaging the safety clutch ............75 Setting the torque ............... 76 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 4 Aligning the transport clamps with the sliding plate edge ..126 19.4 Setting the distance of the transport clamps to the folder sole ............... 127 19.4.1 Setting the distance of the transport clamps to the folder sole (manually) ............. 128 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 5 Setting the stationary marking lamps ........184 23.2 Setting the programmable marking lamp vertical (optional) ..185 Light barriers ................187 24.1 Setting the light barrier holder ..........187 24.2 Aligning the light barriers ............189 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 6 28.2.7 Setting the position of the stops ..........253 28.3 Setting the stacker brackets ............. 254 28.3.1 Replacing pneumatic cylinders, pneumatic valve and coupling rods ..............257 28.3.2 Setting the pneumatic switch ............ 263 Programming ................265 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 7 Disposal................... 449 Troubleshooting ..............451 33.1 Customer Service ..............451 33.2 Messages of the software............451 Technical data................. 469 Appendix ................. 471 35.1 Wiring diagram ................. 471 35.2 Pneumatic diagram..............486 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 8 Table of Contents Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 9: About These Instructions

    Proper setting Specifies proper setting. Disturbances Specifies the disturbances that can occur from an incorrect setting. Cover Specifies which covers must be disassembled in order to access the components to be set. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 10 Safety ( p. 11). 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 755 A/756 A - 00.0 - 02/2019...

  • Page 11: 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 755 A/756 A - 00.0 - 02/2019...
  • Page 12 About these instructions Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 13: Safety

    • Setting up the machine • Performing maintenance work and repairs • Performing work on electrical equipment Only authorized persons may work on the machine and must first have understood these instructions. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 14: 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 755 A/756 A - 00.0 - 02/2019...
  • Page 15 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 755 A/756 A - 00.0 - 02/2019...
  • Page 16 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 755 A/756 A - 00.0 - 02/2019...

  • Page 17: Working Basis

    (5) - small arresting groove (3) - large arresting groove The arm shaft crank (2) is equipped with a large arresting groove (3) (5 mm) and a small arresting groove (5) (3 mm). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 18: Swiveling Up The Machine Head

    (1) - Locking lever (2) - Fabric sliding plate To swivel up the machine head: 1. Pull the handle of the folding station to the left. 2. Swivel the folding station out by 90°. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 19 (3) - Latch 5. Lift and carefully swivel up the machine head.  The latch (3) locks into place as well. The space below the stand is accessible for cleaning and setting operations. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 20: Swiveling Down The Machine Head

    Fig. 4: Swiveling down the machine head (1) ① (1) - Latch To swivel down the machine head: 1. Raise the machine head until the latch (1) disengages. 2. Lower the machine head carefully. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 21 (2) - Locking lever (3) - Fabric sliding plate 3. Swivel the locking lever (2) down. 4. Swivel down the folding station and lock it into place. 5. Insert the fabric sliding plate (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 22: Setting The Handwheel Scale

    (2). 7. Tighten the threaded pin through the slot (1). 8. Remove the lock. 9. Move the handwheel into the 50° position. 10. Tighten the threaded pin through the slot (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 23: Aligning The Machine Head

    To align the machine head: 1. Slide the transport clamps to the rear. 2. Remove the sliding plate. 3. Check the height of the base plate (1) using the metal bar (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 24 (5) - Screws 4. Loosen the screws (4). 5. Loosen the nuts (6). 6. Use the screws (5) to set the machine head. 7. Tighten the nuts (6). 8. Tighten the screws (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 25 (8) - Nut (10) - Centering device 9. Swivel up the machine head. 10. Loosen the screws (9).  The mounting plate (7) is loose. 11. Swivel down the machine head. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 26 19. Turn the mounting plate (7) to adjust its height. 20. Tighten the nut (8). 21. Tighten the screws (9). 22. Swivel down the machine head and check its height. 23. Readjust if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 27: Disassembling And Assembling The Machine Head

    To remove the machine head: 1. Swivel the folding station (1) out by 90°. 2. Remove the fabric sliding plate (2). 3. Disconnect the electrical and pneumatic connection to the machine head. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 28: Assembling Machine Head

    6. Use a suitable tool to carefully lift the machine head up and out. 5.2 Assembling machine head Fig. 13: Assembling machine head (1) ① ② (1) - Gas shock absorber connection (2) - Screws Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 29 (4) - Fabric sliding plate 4. Establish the electrical and pneumatic connection to the machine head. 5. Swivel down the folding station (3) and lock it into place. 6. Insert the fabric sliding plate (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 30: Needle Bar

    The needles plunge into the center of the holes on the throat plate. Setting the needle bar sideways Fig. 15: Aligning the needle bar with the throat plate (1) ③ ① ② (1) - Screws (3) - Screw (2) - Screws Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 31  The needles plunge into the center of the needle holes (5) on the throat plate. 7. Tighten the adjusting rings and fasten the screws (2). 8. Tighten the screw (3). 9. Tighten the screws (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 32 (1) - Screw To set the needle bar lengthwise: 1. Remove the head cover. 2. Removing the arm cover 3. Slightly loosen the screw (1). 4. Turn the needles to bottom dead center. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 33 (3) - Needle bar linkage (6) - Needle holes 5. Turn the needle bar linkage (3) such that the needles are at the center of the needle holes (5). 6. Tighten the screw (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 34: Setting The Needle Bar Height

    Lock the machine in place at the loop stroke position ( p. 15). The height of the needle bar is set correctly when the hook tip is positioned in the lower third of the groove on the needle. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 35 1. Loosen the screws (2). 2. Remove the head cover (1). 3. Loosen the screw (3). 4. Set the needle bar height (4). 5. Align the needle holder straight. 6. Tighten the screw (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 36: Changing The Needle Holder

    Next, turn the needle holder back until the screw (3) can be tightened in the slotted hole. 6. Tighten the screw (3). Order Finish by checking the height of the needle bar ( p. 32). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 37: Disassembling The Needle Bar Linkage

    7. Remove the middle knife (5). 8. Loosen the screws (2). 9. Remove the middle knife guard (4). 10. Loosen the screw (1). 11. Remove the plate (6) from the felt. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 38 16. Loosen the screws (11). 17. Tie the oil wick (12) off the felt (13). 18. Pull the needle bar linkage (7) including thread lever and oil wick (12) out of the machine head. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 39: Assembling The Needle Bar Linkage

    4. The pin must be seated in the arm shaft crank (5) such that the screws (4) can be tightened on the face of the pin. 5. Tighten the screws (4). 6. Slide the thread lever back into the slot in the machine casting. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 40 10. Tighten the screws (9). 11. Tie the oil wick (3) to the felt (2). Fig. 28: Assembling the needle bar linkage (4) ⑫ ⑬ (12) - Screw (13) - Gear tongues Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 41 21. Tighten the screw (12). Order Then check the following settings: • The distance between hook tips and needles ( p. 67) • Needle guard ( p. 69) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 42: Switchable Needle Bar (Class 756)

    4. Loosen the screw (3). 5. Loosen the screws (2) on the adjusting rings. 6. Loosen the screws (1) on the crank pin. 7. Manually position the gear tongues (4) so that they are parallel. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 43 ① ② (1) - Gear tongues (2) - Screw To set the needle bar lengthwise: 1. Remove the head cover. 2. Remove the arm cover. 3. Slightly loosen the screw (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 44 (3) - Needle bar linkage (4) - Needle holes 6. Turn the needle bar linkage (3) such that the needles are at the center of the needle holes (4). 7. Tighten the screw (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 45: Setting The Needle Bar Height

    3. Loosen the screw (1). 4. Turn the needle holder (2). 5. Tighten the screw (1). 6. Switch the needles on. 7. Check the needle bar height and readjust it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 46: Changing The Needle Holder

    4. Screw in the new needle holder until the screw (2) is centered in the slotted hole of the needle bar (1). 5. Tighten the screw (2). Order Finish by checking the height of the needle bar ( p. 43). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 47: Disassembling The Needle Bar Linkage

    6. Disconnect the pneumatic hoses (4) from the housing of the split needle bar (2). 7. Loosen screws (1) and (3) and remove the housing of the split needle bar (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 48 13. Remove the plate (10) from the felt. Fig. 39: Disassembling the needle bar linkage (3) ⑫ ⑬ ⑭ ⑮ (12) - Screws (14) - Bolt (13) - Screw (15) - Lever Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 49 18. Loosen the screws (16). 19. Tie the oil wick (17) off the felt (18). 20. Pull the needle bar linkage (11) including thread lever and oil wick (17) out of the machine head. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 50: Assembling The Needle Bar Linkage

    ⑧ (3) - Oil wick (7) - Needle bar linkage (4) - Pin (8) - Shaft (5) - Bolt (9) - Arm shaft crank (6) - Thread lever (10) - Screws Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 51 11. Slightly loosen the screws (10) and slowly complete 2-3 turns at the handwheel.  The components are released from tension mechanically. 12. Tighten the screws (10). 13. Tie the oil wick (3) to the felt (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 52 20. Keep turning the handwheel until the needle bar is at bottom dead center. 21. Set the needle bar linkage by hand until the needles plunge exactly into the center of the needle holes. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 53 To set the needle bar linkage relative to the needles: 24. Lock the machine in place ( p. 15).  The needles are at the top dead center. 25. Remove the handwheel. 26. Remove the handwheel cover. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 54 Use a feeler gage to check the setting. 31. Tighten the screw (16). 32. Tighten the screw (17). 33. Check the distance between needle bar linkage and clamping piece and readjust it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 55 Then check the following settings: • Aligning the needle bar with the throat plate ( p. 40) • The distance between hook tips and needles ( p. 67) • Needle guard ( p. 69) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 56: Disassembling The Needle Bar Linkage

    • Fix the needle bar (2) in place on a solid surface and press in the coupling bar • Pull the pull rod (3) downwards  The fixed needle bar has been switched off. 2. Unscrew the needle holder. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 57 Embedded in both needle bars are 6 balls (5). The balls are under spring tension and will pop out when you switch off the needle bars. Make sure not to lose the balls (5). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 58 Cover the needle bar linkage with a piece of fabric. 6. Take out the retaining rings (6) using a pair of tweezers. 7. Remove the needle bars from the needle bar linkage. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 59 2. Fix the needle bar (8) including pin (7) in place on a solid surface and lightly press against it. 3. Unscrew the screw (9).  You can now remove the inner parts of the needle bar (8) completely. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 60: Assembling The Needle Bar Linkage

    3. Fix the needle bar (2) including pin (1) in place on a solid surface and press it in until you can screw in screw (3). 4. Tighten the screw (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 61 (4) - Needle bar linkage (11) - Clamping ring 3. Slide the needle bars (2) into the needle bar linkage (4), the crosshead (7) and the clamping rings (11) from the bottom. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 62 9. Slide the crosshead (7) downwards over the balls (8). Fig. 58: Assembling the needle bar linkage (5) ⑥ ⑨ ⑪ ⑦ (6) - Pull rod (9) - Retaining rings (7) - Crosshead (11) - Clamping rings Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 63 16. Tighten the screws (10).  The first pair of screws (10) secures the needle bars against twisting. The second pair of screws (10) locks the first pair of screws (10) in place. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 64: Setting The Needle Transport

    3. Turn the handwheel until it is positioned at the 300° marking. 4. Tighten both screws on the transport eccentric. 5. Activate needle transport in the menu Service > Machine config. ( p. 348). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 65 6. Set the needle transport in the menu Service > Machine test > Test needle transport > Adjust needle transport ( p. 389).  Correct the needle transport until the gear tongues (4) are parallel to one another. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 66: Hook

    6. Push down the hook and tighten the 1 screw in rotational direction on the face of hook shaft. Next, tighten the 2 screw. 7. Insert the hook cover with the bobbin. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 67: Setting The Loop Stroke

    The loop stroke is the distance the needle bar travels from bottom dead center to the point where the hook tip (2) is level with the middle of the needle (1). The loop stroke is 2 mm. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 68 5. Remove the bobbin case top parts along with the bobbins. 6. Remove or swivel down the needle guard. 7. Set the hook tips (1) to the middle of the needle. 8. Tighten screws (3) and (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 69: Setting The Distance Between Hook Tips And Needles

    2. Swivel up the machine head. 3. Loosen screws (1) and (6). 4. Loosen screws (2) and (5). 5. Shift the position of hook supports (3) and (4). 6. Remove or swivel down the needle guard. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 70 7. The distance of the hook tips (8) to the needle grooves (7) must be 0.1 mm. 8. Tighten screws (2) and (5). 9. Tighten screws (1) and (6). Order Finish by checking the height of the needle bar ( p. 32). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 71: Setting The Needle Guard

    2. Disassemble the throat plate. 3. Remove the hook cover and the bobbin. 4. Loosen the screws (2) and remove the cover ring (3). 5. Remove the inside part of the hook (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 72 • Needle bar height ( p. 32) • Loop stroke ( p. 65) • Distance between hook tip and needle ( p. 67) • Setting the needle guard ( p. 69) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 73: Setting The Bobbin Case Lifter

    The bobbin case lifter (2) controls the bobbin case (3), making sure that the needle thread can pass freely between holding lug (4) and throat plate (1) as well as between bobbin case (3) and bobbin case lifter (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 74: Setting The Timing For Opening

    (4) - Left hook support To set the timing for opening: 1. Swivel up the machine head ( p. 16). 2. Remove plugs (1) and (2) below hook supports (3) and (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 75 • Loosen the threaded pin (6) and turn it so that the hex key stands exactly vertical. • Tighten the threaded pin (6) 3. Insert plugs (1) and (2) again. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 76: Setting The Lifting Gap

    (4) and the throat plate cutout (5) is 1 mm. 6. Use a suitable tool - e.g. a gage, a drill or a wire - to check the distance. 7. Tighten the screws below cap (1) and cap (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 77: Setting The Safety Clutch

    (2) - Threaded pins (4) - Threaded pins Proper setting Threaded pins (2) and threaded pins (4) on the two adjusting rings next to the safety clutch (3) must line up with each other. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 78: Setting The Torque

    3. Using the screwdriver, turn the disk on the setting slot (3) so that 8 Nm is reached for the torque: • Increase force: turn in the + direction • Decrease force: turn in the - direction 4. Tighten the coupling screw (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 79: Setting The Remaining Thread Monitor

    4. Open the menu Service > Machine test > Hook thread monitor to fine-tune the settings ( p. 366). 5. Adjust the setting for the 2 remaining thread monitor in the same way. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 80: Middle Knife

    ③ ② (1) - Motor cover (3) - Arm cover (2) - Head cover To remove the drive motor: 1. Remove motor cover (1), arm cover (3) and head cover (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 81 2. Disconnect motor cable (4) and encoder cable (8). 3. Loosen the screws (5) on the motor bracket. 4. Loosen the screws (6) on the lever. 5. Remove the drive motor (7) through the side. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 82: Assembling The Drive Motor

    Fig. 83: Assembling the drive motor (2) ⑥ ⑧ ⑦ (6) - Motor cover (8) - Arm cover (7) - Head cover 5. Place arm cover (8), head cover (7) and motor cover (6). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 83: Setting The Middle Knife

    9. Rotate the middle knife (4) sideways.  The middle knife (4) is in slight cutting position in relation to the knife in the throat plate. 10. Tighten the screw (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 84  When the middle knife holder is at the top dead center, the drive lever must be limited by the screw (7). There must be a distance of 0.5 mm between middle knife holder (9) and middle knife guard holder (8). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 85 1 mm lower than the middle knife (4). 12. If the middle knife guard (3) is not at the right height, loosen the screw (1) and set the middle knife guard (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 86: Setting The Thread Tension Spring

    To set the thread tension: 1. Loosen the screw (1). 2. Turn the socket (2). • Increase the thread tension: turn clockwise • Reduce the thread tension: turn counterclockwise 3. Tighten the screw (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 87: Setting The Trimming And Clamping Device For The Needle Threads

    The clamped needle threads are released after the first few stitches of the next seam. The elastic clamping plate (4) causes the thread-pulling knife (3) to abut flat on the knife (2). This sets the knife automatically to the cutting position. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 88: Testing The Function Of The Trimming And Clamping Device For The Needle Threads

    Fig. 89: Testing the function of the trimming and clamping device for the needle threads ⑤ (5) - Pneumatic switch To check the function of the trimming and clamping device for the needle threads: 1. Press the pneumatic switch (5) on the machine head. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 89: Replacing Knives And Thread-Pulling Knife

    ① ② (1) - Cables (2) - Screws To replace the knives and the thread-pulling knife: 1. Disconnect the cables (1). 2. Loosen the screws (2). 3. Remove the cutting device. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 90 5. If the loose threads are not cut cleanly and clamped, the knives and the thread-pulling knife must be replaced or adjusted. 6. Loosen screws (3) and (4). 7. Replace the knives (6) and the thread-pulling knife (5). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 91 15. Set the throttle valve (10) such that the thread-pulling knife (5) completes its upward movement swiftly, but not abruptly. Fig. 94: Replacing knives and thread-pulling knife (5) 5 mm ⑤ (5) - Thread-pulling knife Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 92: Setting The Thread-Pulling Knife To A Different Needle Distance

    12.3 Setting the thread-pulling knife to a different needle distance Fig. 95: Setting the thread-pulling knife to a different needle distance ① ② ③ (1) - Screw (3) - Thread-pulling knife (2) - Screw Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 93: Converting The Trimming And Clamping Device

    To convert the trimming and clamping device: 1. Disconnect the cables (1). 2. Loosen the screws (2). 3. Remove the cutting device. 4. Screw on and set the new trimming device ( p. 87). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 94: Setting The Trimming And Clamping Device For The Hook Threads

    The hook thread trimmer (1) clamps the hook threads in place and cuts them off. The hook thread trimmer (1) is cleaned with a blast of air during each work cycle. This prevents any fluff and threads ends from being clamped. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 95: Changing The Knives

    10. Assemble the hook thread trimmer with its holder (5) again. 11. Swivel the machine down. 12. Align the blow tube (2) with the hook thread trimmers. 13. Tighten the screw (1). 14. Insert bobbin and bobbin capsule again. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 96: Setting The Height Of The Hook Thread Trimmer

    You set the height of the hook thread trimmer by using the screw (3) in the holder (2). The screw (3) sits on top of screw (4), thus setting the height of the holder (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 97: Testing The Hook Thread Trimmer

    1. Open the menu Service > Multi test > Multi test I/O and select the output Y2 ( p. 405). 2. Press the OK button.  The lower thread clamp opens. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 98: Needle Thread Advancing Device

    • To set a larger amount of needle thread: Turn the holder (3) down in the slotted hole • To set a smaller amount of needle thread: Turn the holder (3) up in the slotted hole 3. Tighten screws (1) and (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 99: Setting The Movement Of The Needle Thread Advancing Device

     The movement of the needle thread advancing device is completed automatically. 2. Set the movement of the needle thread advancing device at the throttle valve (1).  The movement should be swift, but not abrupt. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 100: Changing The Sewing Motor

    The sewing motor position must be 60°. The position is indicated at the handwheel. When the position is 60°, the thread lever is positioned approx. 5 mm in front of the top dead center. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 101 > Adjust sewing motor and press the button 12. Set the value to 0. 13. Press the button.  The setting is saved. 14. Switch off the machine. 15. Set the handwheel to 40°. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 102 The value that must be entered is +5 as the drive shaft rotates in the opposite direction of the handwheel marking. 22. Press the button.  The machine performs a reference run. 23. Check the handwheel position and readjust it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 103: Setting The Folding Station Plate

    1. Switch off the needle transport. 2. Extend the folding station plate (5) up to the fabric sliding plate (3) using a bracket (4). 3. Check the distance to the needle. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 104 8. Re-attach the plate of the ratchet lever (2) using pins. To do so, use new clamping pins and the 2 unused holes on the plate of the ratchet lever (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 105: Folder

    To assemble the folder: 1. Loosen the lever (1). 2. Slide the folder (3) up to the mounting plate (2) as far as it will go. 3. Tighten the lever (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 106: Aligning The Folder With The Needles

     The rear edge of the middle knife and the middle knife guard (2) line up precisely with one another. 6. Tighten the screws (4). 7. Push the lever (8) down. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 107: Aligning The Folder With The Middle Of The Pocket Opening

     The folder (3) is parallel to the sliding plate edge (1) along its entire length. The folder (3) is centered between the markings (2) on the sliding plate. 2. Loosen the screws (4). 3. Center the folder (3). 4. Tighten the screws (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 108  The distance from the left and from the right needle hole to the folder contour must be identical. The needle holes (6) must be precisely in the center of the folder contour (5). 10. Readjust if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 109: Setting The Guide Plates At The Folder

    1. Lower the folder or remove the folding station. 2. Check the position of the guide plates (1) in relation to the needles and the folder sole. 3. Loosen the screw (2). 4. Set the guide plates (1) sideways. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 110 8. Set the limit of the guide plates (1) using screws (3) and (4). • to set the lower limit of the guide plates (1): Turn the screw (3) • to set the upper limit of the guide plates (1): Turn the screw (4) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 111: Setting The Stroke Movement For The Folder

    20 mm when swiveling up before being swung out of the sewing area. When the folder is raised When the folder is raised, there must be some clearance between the guide roller (3) and the highest point of the guide groove (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 112 To set the stroke movement for the folder: 1. Swing the folding station out. 2. Loosen the screws (4). 3. Shift the plate cam (1) in the slotted holes. 4. Tighten the screws (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 113 ⑧ (5) - Eccentric screw (9) - Nut (6) - Nut (10) - Piston rod (7) - Fabric sliding plate (11) - Stop (8) - Folder sole (12) - Stop screw Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 114 (7) along its entire length. 7. Tighten the nut (6). 8. Tighten the stop screw (12) to adjust it to the material thickness you wish to sew. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 115: Setting The Folder Detection

    3. Slide the switch (1) to change its position on the cylinder.  The switch (1) is activated when the folder has reached a distance of 5 mm from the fabric sliding plate when moving downwards. 4. Tighten the screw (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 116 Folder Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 117: Transport Carriage

    Fig. 118: Setting the reference position of the transport carriage (2) ① ② ③ 0.5 mm (1) - Reference switch (3) - Switching screw (2) - Nuts Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 118: Setting The Front End Position Of The Transport Carriage

    3. Tighten the nuts (2). 18.2 Setting the front end position of the transport carriage Fig. 119: Setting the front end position of the transport carriage ① (1) - Reference switch Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 119 6. Switch on the machine. 7. Press the button.  Reference run is carried out. 8. Check the dimension for the front edge of the transport clamp. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 120: Changing The Toothed Belt

    ③ ① ① ⑥ ① ② ① ③ ⑤ ④ (1) - Screws (4) - Toothed belt (2) - Screw (5) - Screws (3) - Screws (6) - Toothed belt cover Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 121 Fig. 121: Changing the toothed belt (2) 7. Cut the toothed belt between the holes. 8. Fit a new toothed belt and tighten it with the screws (5). 9. Set the toothed belt tension ( p. 120). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 122: Setting The Toothed Belt Tension

    5. Tension the toothed belt (4) using the screw (3). 6. Measure the toothed belt tension in the middle of the toothed belt.  The toothed belt tension is 60 Hz. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 123 Transport carriage 7. Tighten the screws (2). 8. Place the toothed belt cover (5). 9. Tighten the screws (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 124 Transport carriage Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 125: Transport Clamps

    Use the edge of the sliding plate (measuring line) (1) to set and check the folding and cutting tools. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 126: Setting The Height Of The Transport Clamps

    To set the height of the transport clamps: 1. Check the stroke height of the two transport clamps. 2. Loosen screws (2) and (3). 3. Set the height of the transport clamps. 4. Tighten screws (2) and (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 127: Changing The Transport Clamps

    7. Connect the pneumatic hoses (1). 8. Align the transport clamps ( p. 126). 9. Open the menu Service > Machine config. > Select working method and select the correct sewing length ( p. 351). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 128: Aligning The Transport Clamps With The Sliding Plate Edge

    4. Set the transport clamps (1) in parallel position relative to the sliding plate edge using the hexagon screws (4) (SW 2). Turn the hexagon screws (4) clockwise or counterclockwise until reach- ing the parallel position. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 129: Setting The Distance Of The Transport Clamps To The Folder Sole

    Property damage may occur! The transport clamp may damage the folder sole. The folder sole may damage the transport clamp. The transport clamp position must be adjusted to the appropriate folder. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 130: Setting The Distance Of The Transport Clamps To The Folder Sole (Manually)

    4. Insert a sheet of white paper. Information A sheet of white paper boosts contrast significantly, making it easier to discern the distance between folder sole and transport clamps. 5. Lower transport clamps and folder. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 131 (8) to 1 mm using knurled screws (6) and (9). 8. Single pipe: Move the transport clamps and set stop screws (4) and (11) to 1 mm using knurled screws (5) and (10). 9. Tighten screws (3) and (12). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 132: Setting The Distance Of The Transport Clamps To The Folder Sole (Motorized)

    > Select piping type and set all values to 0 ( p. 335). 2. Open the menu Service > Machine config. > Transport clamp adjustment and press the button. 3. Pull the transport carriage to the front by hand. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 133 5. Open the menu Service > Machine test > Test transport clamp to lower the folder and the transport clamps 6. Test the transport clamp position and readjust it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 134: Setting The Blowing Of The Piping Strips

    The air stream escaping from blow tubes (1) and (2) must be adjusted in such a way that the piping strip (3) is sufficiently blown on the folder (8) and safely guided into the guide plates. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 135  The sewing process starts. 13. Open the menu Service > Machine test > Machine workflow test and press the button  The loading process can be tested step by step ( p. 379). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 136: Setting The Transport Clamp Pressure

    The safe transport of the sewing material needs to be ensured at all times. 3. Open the menu Program parameters > Process of transport clamp > Select process of transport clamp and select the desired mode ( p. 334). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 137: Setting The Programmable Transport Clamp Pressure

    5. Slide the motor bracket to the left in the slotted holes to tension the toothed belt. 6. Tighten the screws (4). 7. Assemble the cover (2). 8. Tighten the screws (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 138 Transport clamps Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 139: Automatic Corner Knife Station (Straight Pocket)

    (straight pocket) ( p. 348). 20.1 Adjusting the corner knives mechanically Important Before setting the corner knives: 1. Switch off the machine. 2. Disconnect the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 140: Setting The Initial Position Of The Corner Knives

    2. Turn the corner knife holders (1) in such a way that the face sides (3) are in front of each other. 3. Tighten the screw (2). 4. Set the other knife holder as described above. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 141: Testing The Initial Position Of The Corner Knives Manually

    Pay attention to the position of the eccentric. Fig. 137: Testing the initial position of the corner knives manually (1) ① ② Setting range 3 mm ecc. (1) - Screw (2) - Eccentric bolt Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 142 5. Turn the screw (4) until the corner knives are centered in the corner knife cutout of the fabric sliding plate. 6. Tighten the screws (3). 7. Restore the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 143 11. Tighten the nut (5). 12. Loosen the nut (8). 13. Loosen the screw (7) until the distance between screw (7) and reference switch (6) is 0.5 mm. 14. Tighten the nut (8). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 144: Testing And Adjusting The Corner Knives Electrically

    4. Switch on the corner knives one at a time and test if the right corner knives are switched on. 5. Press the button. 6. Enter password: 25483.  The display switches to: Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 145 500 ( p. 314). 9. Go to the quick access panel on the start screen and press the button. 10. Set the sewing length to 180 mm. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 146 21. Open the menu Service > Machine test > Test corner knife > Adjust corner knife and enter the measured value in order to correct the corner knife incision ( p. 373). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 147: Aligning The Corner Knife Station With The Seams

    7. Check seam and cutting pattern. 8. If necessary, correct the corner knife cut at the seam beginning ( p. 139). 9. If necessary, correct the corner knife cut at the seam end ( p. 140). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 148: Setting The Angle Of The Corner Knife Incisions

    The incisions of the corner knives should be as close to the seam as possible, but must not cut the seam. Fig. 144: Setting the angle of the corner knife incisions (2) ② ① (1) - Screw (2) - Corner knife holder Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 149: Replacing Corner Knives

    5. Pull the corner knife (2) upwards into the piercer (1).  The tips or the knives must be situated in the depression of the piercer (1). 6. Tighten the screw (4). 7. Swivel in the corner knife station. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 150: Automatic Corner Knife Station (Straight/Slanted Pocket)

    (straight/slanted pocket) ( p. 348). 21.1 Adjusting the corner knives mechanically Important Before setting the corner knives: 1. Switch off the machine. 2. Disconnect the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 151: Setting The Initial Position Of The Corner Knives

    2. Turn the corner knife holders (1) in such a way that the face sides (3) are in front of each other. 3. Tighten the screw (2). 4. Set the other knife holder as described above. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 152: Setting The Piercers

    2. Loosen screws (1) and (2). Fig. 148: Setting the piercers (2) ④ ③ (3) - Piercer (4) - Piercer 3. Turn piercers (3) and (4) such that their tips are flush. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 153: Setting The Corner Knife Inclination

     The corner knives must be straight and parallel to one another. The distance between the corner knives must always be the same even if the corner knife support is pushed up. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 154 3. To check the setting, push up the left corner knife support first before pushing up the right corner knife support. Correct the setting if necessary. 4. Connect the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 155: Testing The Initial Position Of The Corner Knives Manually

    Pay attention to the position of the eccentric. Fig. 151: Testing the initial position of the corner knives manually (1) ① ② Setting range 3 mm ecc. (1) - Screw (2) - Eccentric bolt Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 156 5. Turn the screw (4) until the corner knives are centered in the corner knife cutout of the fabric sliding plate. 6. Tighten the screws (3). 7. Restore the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 157 11. Tighten the nut (5). 12. Loosen the nut (8). 13. Loosen the screw (7) until the distance between screw (7) and reference switch (6) is 0.5 mm. 14. Tighten the nut (8). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 158: Testing And Adjusting The Corner Knives Electrically

    3. Press the button. 4. Switch on all corner knives one at a time and test if the right corner knives are switched on. 5. Press the button. 6. Enter password: 25483. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 159 • the knife supports must be parallel to one another Set corner knife correction seam begin. • -99.9 mm - 99.9 mm Set correction corner knife seam end • -99.9 mm - 99.9 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 160 500 ( p. 314). 11. Go to the quick access panel on the start screen and press the button. 12. Set the sewing length to 180 mm. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 161 23. Open the menu Service > Machine test > Test corner knife > Adjust corner knife and enter the measured value in order to correct the corner knife incision ( p. 373). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 162: Aligning The Corner Knife Station With The Seams

    7. Check seam and cutting pattern. 8. If necessary, correct the corner knife cut at the seam beginning ( p. 153). 9. If necessary, correct the corner knife cut at the seam end ( p. 154). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 163: Setting The Angle Of The Corner Knife Incisions

    3. Check seam and cutting pattern. 4. Loosen the screw (2). 5. Set the corner knife holder (1). 6. Tighten the screw (2). 7. Set the other knife holder according to the seam pattern. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 164: Replacing Corner Knives

    5. Push the corner knife (3) upwards into the piercer (4).  The tips or the knives must be situated in the depression of the piercer (4). 6. Tighten the screw (2). 7. Swivel in the corner knife station. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 165: Multi-Functional Corner Knife Station

    (multi-functional corner knife device) ( p. 348). 22.1 Adjusting the corner knives manually Important Before setting the corner knives: 1. Switch off the machine. 2. Disconnect the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 166: Setting The Initial Position Of The Corner Knives

    To set the initial position of the corner knives: 1. Unplug the corner knife supports with the locking pin (1).  The corner knives are positioned correctly when the locking pin (1) is fully inserted in the mark-off hole. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 167: Setting The Piercers

    3. Remove the locking pin (2). Fig. 163: Setting the piercers (2) ⑤ ④ (4) - Piercer (5) - Piercer 4. Turn piercers (4) and (5) such that their tips are flush. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 168: Setting The Corner Knife Inclination

     The corner knives must be straight and parallel to one another. The distance between the corner knives must always be the same even if the corner knife support is pushed up. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 169: Testing The Initial Position Of The Corner Knives Manually

    Make sure the corner knives do not swivel outward. 6. Check if the corner knives are centered in the corner knife cutout of the fabric sliding plate. 7. Remove the locking pin. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 170 2. Check if the knife holder is centered in the slot of the fabric sliding plate. 3. If the knife holder is not centered, loosen screw (1). Set the knife holder by turning the eccentric bolt (2). Tighten the screw (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 171 5. Turn the screw (4) until the corner knives are centered in the corner knife cutout of the fabric sliding plate. 6. Tighten the screws (3). 7. Restore the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 172 11. Tighten the nut (5). 12. Loosen the nut (8). 13. Loosen the screw (7) until the distance between screw (7) and reference switch (6) is 0.5 mm. 14. Tighten the nut (8). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 173: Setting The Speed And The End Position Damping Of The Corner Knives

    To set the speed of the upward movement (blue and yellow pneumatic hoses): 1. Turn throttle valves (1), (2), (3), and (4). • lower speed: turn clockwise • higher speed: turn counterclockwise Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 174: Setting The End Position Damping

    • weaker damping: turn counterclockwise To set the lower end position damping: 1. Turn throttle valves (5), (6), (7), and (8): • stronger damping: turn clockwise • weaker damping: turn counterclockwise Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 175: Testing And Adjusting The Corner Knives Electrically

    Fig. 170: Testing and adjusting the corner knives electrically (1) Symbols Meaning Corner knife seam begin. left UP/DOWN Corner knife seam begin. right UP/DOWN Corner knife seam end left UP/DOWN Corner knife seam end right UP/DOWN Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 176 • 0° - 30° Base corner • only for configuration: multi-functional corner knife station • 0° - 30° Offset corner knife at seam end zero • -13 mm - 13 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 177  The corner knife supports must be flush to one another. 8. Use the buttons to align the corner knife supports such that they are straight. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 178 17. Check the location of the corner knife incisions. 18. If the corner knife incision at the seam beginning is not yet correct, measure the distance from the seam beginning to the corner knife incision at the seam beginning. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 179 Fig. 174: Testing and adjusting the corner knives electrically (5) Base corner Distance of the outer corner knife edges Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 180: Aligning The Corner Knife Station With The Seams

    1. Insert a sheet of white paper.  This makes the corner knife cuts more visible. 2. Open the menu Service > Global parameters and switch off the needle thread monitor ( p. 357). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 181 Setting the limit of the corner knives relative to the fabric sliding plate Fig. 176: Aligning the corner knife station with the seams (2) 0.5 mm ① ② (1) - Counternut (2) - Screw Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 182: Setting The Angle Of The Corner Knife Incisions

    2. Sew a test seam. 3. Check seam and cutting pattern. 4. Open the menu Service > Program parameters > Correct corner knife angle to set the corner knife angle ( p. 327). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 183: Replacing Corner Knives

    5. Push the corner knife (3) upwards into the piercer (4).  The tips or the knives must be situated in the depression of the piercer (4). 6. Tighten the screw (1). 7. Swivel in the corner knife station. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 184: Changing The Reference Switch On The Corner Knife Support

    7. Fit the plug connection (3).  If the reference switch is fitted correctly, the LEDs on the reference switch will light up orange while the corner knife support is moving. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 185: Marking Lamps

    (3) - Marking of the front positioning (5) - Marking of the rear positioning point point (varies with the setting of the sewing length) Sewing length (mm) Spacing A (mm) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 186: Setting The Stationary Marking Lamps

    2. Loosen the nuts at the lasers. 3. Align the laser with the markings on the fabric sliding plate. 4. Tighten the nuts. 5. Turn the laser lenses to sharpen the lasers. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 187: Setting The Programmable Marking Lamp Vertical (Optional)

    (3) - Screw (2) - Screw To set the marking lamp vertical: 1. Loosen the screw (2) on the adjusting ring (1). 2. Loosen the screw (3).  The laser holder is loose. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 188 9. Open the menu Service > Machine config. and select the option Marking lamp vertical ( p. 348). 10. Open the menu Service > Machine test > Test programmable marking lamp to set the marking lamp ( p. 393). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 189: Light Barriers

    (2) - Screw Proper setting The light barrier holder (3) is positioned at a right angle to the fabric sliding plate. The light barrier holder (3) must securely lock into place. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 190  The light barrier holder (3) is as close to the machine arm as possible. Make sure the light barriers, cables and cable ties do NOT come into contact with the machine arm. 7. Tighten the screws (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 191: Aligning The Light Barriers

    1. Place material below the transport clamps. 2. Open the menu Service > Machine test and press the button Align light barriers  The flap clamps and the folding plates close. The transport clamps are lowered. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 192 (5) - Light barrier holder (7) - Screws (6) - Screws 6. Swing out the light barrier holder (5). 7. Loosen screws (6) and (7). 8. Align the light barriers on the reflecting foils (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 193 17. Swing the folding station (1) back out. Information If the light barriers fail to switch at seam beginning and seam end, check if the transport clamps are parallel and set them ( p. 126). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 194 20. Insert fabric. 21. Open the menu Service > Machine test and press the button Align light barriers  The flap clamps and the folding plates close. The transport clamps are lowered. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 195 The display shows the scanned parameters. The scanned parameters are automatically adopted by the control. 32. Press the button.  The flap clamp opens. 33. Repeat the procedure for the right light barrier. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 196 36. Insert fabric. 37. Open the menu Service > Machine test and press the button Align light barriers  The flap clamps and the folding plates close. The transport clamps are lowered. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 197 The display shows the scanned parameters. The scanned parameters are automatically adopted by the control. 47. Press the button.  The flap clamp opens. 48. Repeat the procedure for the right light barrier. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 198: Setting The Correction Values For The Flap

    The transport clamps must be aligned correctly with the folder sole ( p. 127). To align the air nozzles for cleaning the reflecting foils: 1. Switch off the machine. 2. Pull the transport clamps forward. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 199 Fig. 195: Aligning the air nozzles for cleaning the reflecting foils (2) ④ (4) - Throttle valve 5. Regulate the air flow through the air nozzles using the throttle valve (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 200 Light barriers Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 201: Assembling The Vacuum Unit (Optional)

    1. Open the menu Service > Machine config. and press button. 2. Remove the fabric sliding plate. 3. Tighten the screen (1) and the connection (3) with screws (2) under the tabletop. 4. Lay the hose (4) under the tabletop. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 202 10. Route the pneumatic line (9) through the machine head. 11. Use the Y-connection (11) to connect the pneumatic line (9) to an existing pneumatic line that has already been connected to the compressed air maintenance unit (12). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 203: Endless Zipper Feed (Optional)

    26.1 Threading and activating the zipper Information The mounting of the zipper roll and the pulling direction of the zipper depend on how the zipper is supposed to be sewn in. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 204 2. Feed the individual zipper strands through the guide (1). 3. Feed the zipper strands through the rolls (3). 4. Feed the zipper strands through guide (4) and guides (5). 5. Feed the zipper strands through the guides (6). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 205 7. To activate the endless zipper feed, open the menu Service > Machine config. and press the button. 8. To activate the endless zipper feed in the pocket program, open the menu Program parameters and press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 206: Setting The Guide Rails At The Folder

    While doing so, set the height of the holder (3) in the slotted hole. Initial position: The distance between the upper edge of the folder sole and the lower edge of the guide rail (2) is 2 mm. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 207: Setting The Lifting Movement Of The Guide Plates

    8 mm (1) - Nut (4) - Nut (2) - Screw (5) - Lever (3) - Screw To set the lifting movement of the guide plates: 1. Loosen the nut (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 208 6. Tighten the nut (1). 7. Open the menu Service > Multi test > Input/output test to test the lifting movement of the guide plates with output PWM2 ( p. 405). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 209: Zipper Cutter

    Fig. 204: Changing the knives (1) ② ① (1) - Zipper cutter (2) - Screw To change the knives: 1. Switch off the machine. 2. Disconnect the compressed air supply. 3. Swing the folding station out. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 210 14. Tighten the screw (5) with the nut (10) until you feel a slight resistance between knife (7) and counter blade (8). 15. Tighten the screw (11). 16. Insert the pin (3). 17. Tighten the threaded pin (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 211: Setting The Height Of The Zipper Cutter

    Fig. 206: Setting the height of the zipper cutter (1) ③ ② ① 2 mm (1) - Zipper cutter (3) - Screw (2) - Screws To set the height of the zipper cutter: 1. Switch off the machine. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 212: Setting The Position Of Knife And Counter Blade

    To set the position of knife and counter blade: 1. Loosen the nut (2). 2. Turn the piston rod (1).  The knife overlaps the counter blade by 2 mm. 3. Tighten the nut (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 213: Setting The Swivel Width

    1. Loosen the nut (2). 2. Turn the piston rod (1).  The zipper cutter swivels out until the counter blade is centered above the throat plate. 3. Tighten the nut (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 214: Setting The Swivel Speed Of The Zipper Cutter

    • higher speed for swiveling in: Open the throttle valve (2) by turning it counterclockwise • lower speed for swiveling in: Close the throttle valve (2) by turning it clockwise  The swivel movement should be swift, but not abrupt. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 215: Setting The End Position Damping

    2. To set the Rear end position damping (zipper cutter swiveled in): Turn the threaded pin (1). • stronger damping: Turn the threaded pin (1) clockwise • weaker damping: Turn the threaded pin (1) counterclockwise Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 216 4. Open the menu Service > Multi test > Multi test I/O to select input SC101 and check the sensor (4) for proper operation. 5. If necessary, readjust the position of the sensor (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 217: Driver Zipper

    (3) - Spring To set the distance between the driver zipper and the needles: 1. Loosen the screws (5). 2. Put away the holder (4) with spring (3). 3. Loosen the screws (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 218 (7) - Nut 10. Loosen the nut (7). 11. Turn the piston rod (6).  The driver zipper is situated 2 mm below the needle tips. 12. Tighten the nut (7). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 219: Setting The Driver Zipper Limit

    YC109 ( p. 405).  The driver zipper (2) must not rest on the fabric sliding plate. 2. Loosen the screws (3). 3. Set the stop (1). 4. Tighten the screws (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 220: Setting The Speed Of The Driver Zipper

    • lower speed: Close the throttle valve (1) by turning it clockwise • higher speed: Open the throttle valve (1) by turning it counterclockwise  The swivel movement should be swift, but not abrupt. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 221: Setting The Folder Height When The Zipper Is Cut

    • To move the folder further away from the zipper cutter: Push the holder (2) upwards. 5. Tighten the screws (1). Information The closer the folder is positioned to the zipper cutter, the shorter the zipper projection is at the next seam beginning. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 222 Endless zipper feed (optional) Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 223: Additional Equipment

    1. Open the menu Service > Machine config. and press the button. 2. Open the menu Service > Multi test > Multi test I/O and select the output Y31.  The outfeed roller lowers. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 224 Testing and setting rolling speed and duty cycle The rolling speed and the duty cycle of the transport rollers are tested and set at the OP7000 control panel ( p. 345). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 225: Tape Feeder

    Another option is to use the plate included with the tape feeder. 2. Open the menu Service > Machine config. and switch on the tape feeder ( p. 348).  The button appears on the start screen. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 226 Ensure that the roll holder clamps the tape roll securely. 4. Feed the reinforcement strip (5) from bottom to top through the advancing device (4). 5. Insert the reinforcement strip (5) into the guide (2) behind the tape monitor (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 227  The reinforcement strip (5) is cut to the correct length. Information The tape projection at seam beginning and seam end can be set in the Program parameters menu Program parameters > Automatic tape feeder ( p. 329). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 228: Setting The Height Of The Tape Feeder

    5. Tighten the screws (1). Make sure that the set height of the tape feeder does not shift. 6. Tighten the screws (2). 7. Check the setting and readjust it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 229: Changing The Knives

    (1) - Screws (2) - Screws To change the knife: 1. Remove the fabric sliding plate. 2. Swivel up the machine head. 3. Loosen screws (1) and (2). 4. Remove the tape feeder. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 230 11. Readjust the knife setting if necessary. 12. Reinsert the tape feeder. 13. Tighten screws (1) and (2). Make sure that the height of the tape feeder does not shift. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 231: Changing The Conveyor Belt

    (2) - Screws To change the conveyor belt: 1. Remove the fabric sliding plate. 2. Swivel up the machine head. 3. Loosen screws (1) and (2). 4. Remove the tape feeder. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 232 (6) - Plug (9) - Motor (7) - Screws (10) - Conveyor belt (8) - Motor bracket 8. Loosen the screws (7) on the motor bracket (8). 9. Disconnect the plug (6). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 233 19. Fix the plug (6) in place on the motor bracket (8) using cable ties. 20. Reinsert the tape feeder. 21. Tighten screws (1) and (2). Do not tighten the screws too much to ensure that the height of the tape feeder does not shift. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 234: Setting The Downholder

    Crushing possible. Switch off the machine before setting the downholder. NOTICE Property damage may occur! The downholder can become damaged by colliding with the transport clamps. Set the downholder as described. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 235 To set the downholder: 1. Switch on the machine and press the Service button on the boot screen (4). 2. Open the menu Service > Machine config. and press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 236 It is also possible to install a downholder on the left-hand side. To do so, assemble the holder at the holes (5) on the left-hand side of the folding station plate. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 237: Assembling The Pocket Bag Clamp

    The pocket bag clamp (1) is held in place by a magnet on the left-hand side of the fabric sliding plate. 2. Set the height of the magnet using the screw thread. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 238 Additional equipment Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 239: Stacker

    28.1 Pincer stacker To activate the pincer stacker: Open the menu Service > Machine config. > Stacker/Pincer Stacker/Smoother/Blow-Off and press the button (pincer stacker) ( p. 348). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 240: Assembling The Pincer Stacker

    (2) - Screw To assemble the pincer stacker: 1. Tighten the pincer stacker to the stand using the screws (1). 2. Tighten the screw (2) at the bottom inside the slotted hole. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 241 6. Connect cable X625 (3) of the cable harness with pneumatic valve Y25 (9). 7. Connect cable X626 (4) of the cable harness with pneumatic valve Y26 (6). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 242 Fig. 235: Assembling the pincer stacker (4) ⑪ ⑩ ⑪ ⑩ (10) - Grounding wire (11) - Grounding wire 9. Lay the grounding wires (10) and (11) from the pincer stacker to the stand. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 243: Setting The Pincer Stacker

    The rubber lining (4) rests completely on the tabletop. 4. Loosen the lever (1).  The stacker tongs (5) reach their final position. 5. Tighten the lever (1). 6. Tighten the nut (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 244: Activating The Pincer Stacker

    Stacker 28.1.3 Activating the pincer stacker To activate the pincer stacker: 1. Activate the stacker in the menu Service > Machine configuration ( p. 348). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 245: Throw-Over Stacker

    1. Tighten the holder (1) to the stand using the screws (2). Dimension X: no more than 15 cm, depending on the parts to be stacked. 2. Grease the hole (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 246 The suspension of the throw-over stacker is relieved. NOTICE Property damage may occur! Possible damage to the pedal. Pull the pedal out of the throw-over stacker BEFORE swinging out the stacker brackets. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 247 (9) - Pedal (11) - Stacker bracket 7. Remove the pedal (9) from the stand of the throw-over stacker. 8. Loosen the cable tie (8). 9. Swing out stacker brackets (10) and (11). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 248 (13) - Detent-edged washer 10. Tighten the grounding wire (12) to the stand. Important The detent-edged washer (13) must be seated directly on the stand. 11. Swing in the throw-over stacker. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 249 12. Connect the pneumatic lines (15) of the pedal with the pneumatic lines (14) of the machine.  The pneumatic lines of the throw-over stacker are connected to the compressed air maintenance unit via magnet valve Y25. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 250: Aligning The Throw-Over Stacker

    2. Shift the position of the throw-over stacker in the slotted holes (2) to set the distance to the stand.  The stacker brackets (4) and (5) are positioned approx. 2 cm in front of the stand. 3. Tighten the screws (6). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 251 2. Slide the adjusting ring (8) up to the throw-over stacker and tighten it. Fig. 244: Aligning the throw-over stacker (3) ⑫ ⑪ ⑨ ⑩ (9) - Screw (11) - Clamping bracket (10) - Roll (12) - Locking mechanism Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 252: Activating The Throw-Over Stacker

    When at its rear end position, the throw-over stacker comes into contact with the stop without allowing the cylinder to reach the end position and without the front clamping bracket lifting off from the stacking bracket. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 253: Setting The Stack Removal

    1. Set the speed at throttle valves (1) and (2): • higher speed: Open the throttle valve by turning it counterclockwise • lower speed: Close the throttle valve by turning it clockwise Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 254: Setting The Sewing Material Surface

    (1) - Sewing material surface (2) - Screws To set the sewing material surface: 1. Loosen the screws (2). 2. Set the sewing material surface (1) to the desired angle. 3. Tighten the screws (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 255: Setting The Position Of The Stops

    Fig. 248: Setting the position of the stops Dimension 1 Dimension 2 Dimension 3 Dimension 4 Setting dimensions Dimension 1 70 mm Dimension 2 50 mm Dimension 3 25 mm Dimension 4 maximum Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 256: Setting The Stacker Brackets

    5. Set the throw-over stacker (2) to its rear position.  The distance between the front clamping bracket (1) and the throw- over stacker (2) is approx. 12 mm. 6. Tighten the screws (4). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 257 2. Press the front clamping bracket (1) and the rear clamping bracket (8) against the stacking bracket (9). 3. Press the pneumatic cylinder (6) into its end position. 4. Tighten the screws (7). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 258 5. Set the height of the retention bracket.  The distance between the upper edge of the stacking bracket (9) and the upper edge of the retention bracket (12) is 190 mm. 6. Tighten the screw (11). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 259: Replacing Pneumatic Cylinders, Pneumatic Valve And Coupling Rods

    3. Pull the hood up and off. 4. Loosen the screw (3). 5. Remove the grounding wire. 6. Loosen screws (2) and (4). 7. Pull the side panel off the axles. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 260 3. Assemble the new pneumatic cylinder. 4. Connect the pneumatic lines. 5. Place and tighten the side panel. 6. Switch on the compressed air supply. 7. Set the pneumatic cylinder to a dimension of 175 mm. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 261 3. Disassemble the old pneumatic cylinder. 4. Set the new pneumatic cylinder to a dimension of 240 mm. 5. Assemble the new pneumatic cylinder. Make sure to insert the sockets again. 6. Connect the pneumatic lines. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 262 2. Loosen the screw (1) and disassemble the axle. 3. Disassemble the old pneumatic cylinder. 4. Set the new pneumatic cylinder to a dimension of 301 mm. 5. Assemble the new pneumatic cylinder. 6. Connect the pneumatic lines. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 263 1. Remove the covers ( p. 257). 2. Uncouple the pneumatic lines. 3. Loosen the screws (1). 4. Disassemble the pneumatic valve. 5. Assemble the new pneumatic valve. 6. Connect the pneumatic lines. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 264 2. Loosen the spring clips on both sides of the coupling rod you wish to replace. 3. Disassemble the old coupling rod. 4. Assemble the new coupling rod. 5. Set the correct dimensions. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 265: Setting The Pneumatic Switch

    2. Shift the position of the screws (3) in the slotted hole to set the pneumatic switch (2). Important Make sure the pneumatic switch operates (2) and that only the tappet and NOT the housing is touched by the lever (1). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 266 Stacker Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 267: Programming

    Needle transport On/Off (756 A only)  p. 349 Programmable marking lamps On/Off  p. 349 Pocket bag clamp On/Off  p. 349 Hook thread monitor On/Off  p. 349 Tape feeder On/Off  p. 349 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 268 Set the maximum sewing motor speed  p. 377 2.5.2 Adjust sewing motor speed  p. 376 2.6 Test tape feeder  p. 364 2.7 Machine workflow test  p. 378 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 269 4.0 User configuration 4.1 Language selection  p. 428 User password setup  p. 429 Button beep On/Off  p. 427 5.0 Start screen 5.0.2 Overview of sequences  p. 284 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 270 5.1.7.1 Set sewing speed  p. 314 5.1.7.2 Set soft start parameters  p. 315 Continuous or intermittent transport  p. 314 5.1.7.4 Needle transport (756 A only)  p. 317 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 271 5.1.10 Automatic tape feeder  p. 329 5.1.10.2 Set length of tape at seam begin.  p. 329 5.1.10.3 Set length of tape at seam end  p. 329 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 272 5.1.15.4 Lift transport clamp after corner cut  p. 345 Blow-off On/Off  p. 345 5.1.15.11 Set blow-off time  p. 345 Roll-off On/Off  p. 345 5.1.15.6 Outfeed roller: Time after corner cut  p. 346 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 273  p. 362 Set counting direction of piece counter UP/DOWN  p. 359 Knitwear mode On/Off  p. 359 6.0 DAC internal For DA staff only 7.0 DAC update  p. 400 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 274  p. 422 10.0 Maintenance 10.3 Display software version  p. 425 10.4 Enter date and time  p. 425 Internal information (password-protected) (for DA staff only) Update machine software  p. 431 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 275 The user must enable the machine for use after the display of the welcome message goes out. Follow the instructions shown on the display for this purpose: To switch on the machine: 1. Press the pedal.  The control panel is enabled. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 276 Control panel Description ① Display of pocket programs in sequence ② Automatic seam sequence  p. 293 On/Off ③ Edit seam sequence  p. 280 ④ Piece counter  p. 279 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 277 The password is 25483. Displaying Help To display Help: 1. Press the Help button.  The button is highlighted with a red circle Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 278 Home button • saves the settings in the menu • Return to the start screen Return button • saves the settings in the menu • Return to next higher menu level Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 279 To enter a negative value on the numeric keypad: 1. Enter the desired value. 2. Press the +/- button.  The value is given a - sign and becomes negative. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 280 3. In the text you have already entered: tap on the place where you wish to enter new text.  The text will be deleted starting at the place where you tapped. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 281  The display switches to Edit mode. 2. Use the numeric keypad to set the desired number of pieces (0-10000). 3. Confirm with OK.  The display returns to the start screen. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 282 Varies with the Selected seam sequence programming ② Varies with the Display of pocket programs assigned to the seam programming sequence ③ Call up additional seam sequences • in steps of 5 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 283 ⑨ ⑬ ⑩ ⑪ ⑫ (9) - Seam sequence template (12) - Help (10) - Seam sequence to be created (13) - Delete pocket program (11) - Available pocket program slot Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 284 The pocket programs will be stored in the seam sequence in the order in which they were added to the seam sequence. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 285 Important The preset program is copied to the selected pocket program slot, deleting the previous program. 5. Select additional preset programs as described above and add them to the sequence. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 286 OR tap on the trash to delete all pocket programs.  The pocket programs are deleted from the sequence. 2. Press the button (1).  The display switches to Select program. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 287 The order in which they are selected corresponds to the order of the programs in the seam sequence.  To scroll up and down the list of pocket programs, press the buttons Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 288  The display switches to Select source of sequence. Fig. 271: Changing the seam sequence template (2) display of the sequence selectable content sequences  The destination sequence is grayed out and cannot be selected. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 289 4. Use Drag and Drop to drag any pocket programs you do not need from the sequence to be created (3) to the trash OR tap on the trash to delete all pocket programs.  The pocket programs are deleted from the sequence. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 290  The display returns to Overview of sequences. 7. Press the button to save the setting and return to the start screen.  You can start sewing with the new seam sequence right away. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 291 Fig. 275: Naming a seam sequence (2) 2. Enter the desired sequence name. You can enter up to 18 characters. Every sequence must be given a name. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 292 3. Press the desired seam sequence.  The selected seam sequence is highlighted with a bold frame and the color orange (1). 4. Press the button.  The display switches to Copy sequence. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 293  To scroll up and down the list of sequences, press the buttons OR drag the bar up or down. Information Cancel the selection by pressing the same sequence again. 6. Press the desired seam sequence.  The display shows an info field. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 294 Fig. 279: Activating a pocket program from the seam sequence ① ② (1) - Pocket programs in sequence (2) - selected pocket program Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 295 To activate the automatic seam sequence: 1. Press the button.  The start screen shows arrows between the seam sequences. The arrows indicate that the automatic seam sequence has been activated. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 296 Fig. 281: Program parameters Symbols Meaning Select pocket program  p. 296 Enter name of pocket program  p. 297 Copy pocket program  p. 297 Create or change seam program  p. 299 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 297 Program loading process  p. 337 Stacker/smoother/blow-off/roll-off  p. 345 Reset seam program to default values Zipper cutter On/Off (optional) 2. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 298 ( p. 280). If the pocket program has already been copied to the selected seam sequence, you can activate it in the seam sequence ( p. 292). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 299 • Select the pocket program you wish to copy Select destination • Select the pocket program you wish to overwrite Save settings To copy a pocket program: 1. Press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 300 6. Confirm with OK.  The selected pocket program is copied. The message Copy was successful is displayed. 7. Confirm with OK.  The display switches to the selected seam program. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 301  The display switches to Create seam program. Fig. 284: Creating a seam program Press a button to either open another submenu or enter the desired values directly using the numeric keypad. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 302 Set slanted flap shape seam end (1 - 13 mm) Pocket shape seam end • straight • slanted • slanted • Set slanted pocket shape seam end (1 - 13 mm) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 303 • Automatic flap scan left Reset seam program To create a seam program: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 304 Set number of stitches for double tack at seam beginning (0 - 10) To set the securement of the left seam beginning: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 305 ( p. 302). Set securement seam end left needle  The display switches to Securement seam end left needle. Fig. 286: Set securement seam end left needle Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 306 Set securement seam end right needle Information The settings in subitem Securement seam end right needle are adopted automatically from the settings for the Securement seam end left needle ( p. 303). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 307 The arrows in the left half of the display indicate the correction direction: Correction inward Correction outward The set correction value is adopted for all 3 positioning points when you switch positioning points. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 308 Activate automatic flap scan left ( p. 353) • fully automatic working method To activate the flap: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 309 Fig. 289: Activating the flap (2) ② ① ② ③ (1) - Quick access corner knife (2) - Quick access flap correction correction (3) - Display of flap Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 310 • -20 mm - +20 mm To make a correction to the light barrier: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 311 Fig. 291: Set correction light barrier seam begin./end Information The arrows in the left half of the display indicate the correction direction: Seam beginning Correction outward Correction inward Seam end Correction outward Correction inward Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 312 Symbols Meaning Activate marking lamps 1 - 16  p. 311 Programmable marking lamps in sewing direction  p. 312 Programmable marking lamps crosswise to the sewing direction  p. 313 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 313 Fig. 293: Activate marking lamps 1-16 Symbols Meaning Marking lamp activated Marking lamp deactivated To activate the marking lamps: 1. Press the button of the desired marking lamp.  The marking lamp is (de)activated. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 314 1. Press the button  The desired marking lamp moves to the corresponding position. 2. Press the button 3. Enter the desired correction value using the numeric keypad. 4. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 315 Set programmable marking lamp Y-axis • -120 - 120 To program the programmable marking lamps for the Y-axis: 1. Enter the desired correction value using the numeric keypad. 2. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 316 Symbols Meaning Set sewing speed • 100 RPM - 3200 RPM (class 755 A) • 100 RPM - 3000 RPM (class 756 A) Set soft start parameters  p. 315 • Soft start On/Off • Soft start speed •...
  • Page 317 Number of stitches for loosening the needle thread clamp • 1 - 20 To edit the soft start parameters: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 318 • 100 RPM - 1500 RPM To set the speed of the seam securement: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 319 Set needle transport at seam beginning • 0 - 100 % Set needle transport in main seam • 0 - 100 % Set needle transport at seam end • 0 - 100 % Knitwear On/Off Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 320 Set middle knife position at insertion • 0 mm - 30 mm To set the middle knife parameters: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 321 Fig. 301: Setting middle knife correction seam begin./seam end Information The arrows in the left half of the display indicate the correction direction: Seam beginning Correction outward Correction inward Seam end Correction inward Correction outward Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 322 Set corner knife correction seam end  p. 321 • -9.9 mm - 9.9 mm To set the corner knife: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 323 Fig. 303: Set corner knife correction seam begin./seam end Information The arrows in the left half of the display indicate the correction direction: Seam beginning Correction outward Correction inward Seam end Correction inward Correction outward Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 324 • -9.9 mm - 9.9 mm Correction seam begin. right  p. 323 • -9.9 mm - 9.9 mm Corner knife seam begin. right UP/DOWN Corner knife seam end left UP/DOWN Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 325 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Set corner knife correction seam begin./seam end Fig. 305: Set corner knife correction seam begin./seam end Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 326 Programming Information The arrows in the left half of the display indicate the correction direction: Seam beginning Correction outward Correction inward Seam end Correction inward Correction outward Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 327 • -9.9 mm - 9.9 mm Correction seam begin. right  p. 326 • -9.9 mm - 9.9 mm Correct corner knife angle seam begin. right  p. 327 • -9.9° - 9.9° Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 328 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Set corner knife correction seam begin./seam end Fig. 307: Set corner knife correction seam begin./seam end Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 329 The arrows in the left half of the display indicate the correction direction: Seam beginning Correction outward Correction inward Seam end Correction inward Correction outward Correct corner knife angle seam begin./seam end Fig. 308: Correct corner knife angle seam begin./seam end Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 330 The arrows in the left half of the display indicate the correction direction. Seam beginning Correction inward (smaller angle) Correction outward (greater angle) Seam end Correction outward (greater angle) Correction inward (smaller angle) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 331 • 0 - 99 mm Set length of tape at seam end • 0 - 99 mm Set clamp speed during transport with tape feed switched on • 10 - 100 % Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 332 Set return of transport clamp  p. 331 • Without transport • Transport up to stacking position • Transport up to loading position Set waiting position of transport clamp  p. 332 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 333  p. 360 • The transport clamp automatically moves to the loading position after sewing before returning to its waiting position • 0 mm - 300 mm (set position of the loading position) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 334 • 1 mm - 515 mm To set the waiting position of the transport clamp: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 335 • Adjustment of the clamp to different materials (e. g. lining fabrics) • 30 - 100 % To set the process of the transport clamp: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 336 Lower left transport clamp first, depressurize right transport clamp Lower right transport clamp first, depressurize left transport clamp To select the process of the transport clamp: 1. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 337 -9.9 mm - 9.9 mm Left out, right out (custom applications) • Correction clamp left outside -9.9 mm - 9.9 mm • Correction clamp right outside -9.9 mm - 9.9 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 338 Spread clamp right before transport start • -1.0 mm - 1.0 mm To spread the transport clamp: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 339 • Both flap clamps close together • Left flap clamp closes first • Right flap clamp closes first Vacuum On/Off Downholder On/Off Select downholder mode  p. 339 Waistband clamp On/Off Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 340 Programming Symbols Meaning Select pocket bag clamp mode • currently not active in 755 A and 756 A • Insertion mode from left • Press pedal backwards for pocket bag clamp • Open pocket bag clamp automatically Select blowing mode  p. 341 Breast welt mode On/Off (756 A only) •...
  • Page 341 1: Downholder + waistband clamp 2: Vacuum 1: Downholder + vacuum 2: Waistband clamp 1: Downholder 2: Vacuum 3: Waistband clamp 1: Downholder + vacuum Waistband clamp off 1: Downholder 2: Waistband clamp 3: Vacuum Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 342 To select downholder mode: 1. Press the desired button. Information The numbering of the buttons downholder , vacuum and waist- band clamp in the lower half of the display changes with the selected setting. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 343 2: Blowing ON at flap clamp, blowing ON at folding plate for 10 mm seam path • Not active in 755 A and 756 A 1: Lower pickup folder, blowing ON at flap clamp + folding plate • Not active in 755 A and 756 A...
  • Page 344 1. Press the desired button. Information The numbering of the buttons folding plate , flap clamp lower pickup folder in the lower half of the display changes with the selected setting. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 345 Programming Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 346 • The flap clamps can be opened or closed again after the flap clamps have been lowered, and the sewing process is started To select pedal mode: 1. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 347 • 0 ms - 1000 ms Blow-off On/Off • only with active blow-off Set the duration for which the blow-off will be blowing • only with active blow-off • 0 ms - 1000 ms Roll-off On/Off Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 348 • 0 ms - 1000 ms To set the stacker, the smoother, the blow-off, and the outfeed roller: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 349 Test and set individual machine functions  p. 363 Perform system updates  p. 400 Test machine settings  p. 403 Read/write data to/from a USB key  p. 415 Initialize machine parameters  p. 422 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 350 You use this menu to set basic machine functions. The password is 25483.  The display switches to Machine config. Fig. 323: Machine configuration Press a button to either open another submenu or select the desired options directly. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 351  p. 357 Tape feeder On/Off Vacuum On/Off Downholder On/Off Select stacker/pincer stacker/smoother/blow-off • Stacker not available • Throw-over stacker • Pincer stacker • Smoother • Blow-off Roll-off On/Off Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 352 • straight pocket • straight/slanted pocket (automatic corner knife device) • multi-functional corner knife device Pedal operation  p. 354 Toolbox configuration  p. 355 Zipper cutter On/Off Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 353 To select the machine class and the matching seam length: 1. Select the desired class (1). 2. Select the desired working method (2). 3. Select the desired maximal seam length (3). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 354 Selecting needle distance  The display switches to Select needle distance: Fig. 325: Select needle distance To select the needle distance: 1. Select the desired needle distance. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 355  The settings for the left and the right light barrier can be configured separately. Information The available options vary with the selected class. You can configure no more than 4 light barriers at a time. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 356 • not active in 755 A/756 A Operation with 2 pedals • 1 pedal left (function pedal) • 2 pedal right • not active in 755 A/756 A To set the pedal operation: Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 357  The display switches to an overview of the possible tools. Tools that have already been selected are highlighted in gray. The display will only show the tools available for the selected class. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 358 Tools already in use are grayed out. 2. To navigate up and down the list, use the arrow buttons 3. Press the selected tool to select it.  The display returns to Machine config. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 359  The display switches to Global parameters. Fig. 330: Global parameters Press a button to either open another submenu, enter the desired values directly using the numeric keypad or select the desired options directly Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 360 • only visible in global parameters if transport clamp adjustment is set to AUTOMATIC in the machine configuration • without bypass • bypass left • bypass right • bypass left and right Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 361 • only in combination with needle transport The needle transport is set via the sewing head parameters  p. 317 To set the global parameters: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 362 • is set in the program parameters  p. 331 To set the transport clamp: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 363 To set the needle thread clamp, the needle thread catcher and the needle thread tension: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 364 To set password protection: 1. Press the button in front of the desired area to enable or disable password protection. Information Locking the screen requires that you assign a user password ( p. 429). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 365 Set and test hook thread monitor  p. 366 Test roll-off device  p. 367 Set and align light barriers  p. 368 Test corner knife position  p. 370 Set and test sewing motor  p. 376 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 366 • only if automatic transport clamp adjustment has been activated in the machine configuration To test the machine: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 367  OP7000 logging automatically writes all status messages of the OP7000 to the Log.txt file until the machine is switched off. Information The DAC logging is performed by DA service technicians only. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 368 Fig. 336: Setting and testing hook thread monitor Symbols Meaning Set sensitivity left • 0 - 15 Set sensitivity right • 0 - 15 To set the hook thread monitor: 1. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 369 • 0 ms - 1000 ms Start roll-off test Roll-off On/Off To test the roll-off device: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 370 For information on how to connect the light barriers, see the wiring diagram included in the Appendix ( p. 471). To test the light barriers: 1. Press the button.  Reference run is carried out. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 371 Lift pick-up folder/lower pick-up folder depressurized Transport clamp quick adjustment  p. 335 Open/Close flap clamp Split needle bar On/Off Scan straight flap Scan slanted flap 2. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 372 Symbols Meaning Reference Test corner knife function of all corner knives On/Off Corner knife distance • only for configuration: Automatic corner knife station • 80 mm - 220 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 373 • only for configuration: multi-functional corner knife station • 0.0° - 30.0° Corner knife seam end right UP/DOWN 2. Press the desired button. 3. Enter the desired value using the numeric keypad. 4. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 374 The arrows in the left half of the display indicate the correction direction. Seam beginning Correction inward (smaller angle) Correction outward (greater angle) Seam end Correction outward (greater angle) Correction inward (smaller angle) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 375 • 0° - 30° Base corner • only for configuration: multi-functional corner knife station • 0° - 30° Offset corner knife at seam end zero • -13 mm - 13 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 376 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Set offset angle seam begin./seam end Fig. 342: Set offset angle seam begin./seam end Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 377 The arrows in the left half of the display indicate the correction direction. Seam beginning Correction inward (smaller angle) Correction outward (greater angle) Seam end Correction outward (greater angle) Correction inward (smaller angle) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 378 Fig. 343: Testing the sewing motor Symbols Meaning Adjust sewing motor  p. 377 Adjust sewing motor speed • 100 RPM - 3200 RPM (class 755 A) • 100 RPM - 3000 RPM (class 756 A) Reference Switch split needle bar On/Off Sewing motor On/Off...
  • Page 379 Set the position of the sewing motor • 70°- -70° Set the maximum sewing motor speed • 100 RPM - 3200 RPM (class 755 A) • 100 RPM - 3000 RPM (class 756 A) To adjust the sewing motor: 1. Press the desired button.
  • Page 380 Test step by step  p. 380 Display cycle time  p. 381 To perform a machine workflow test: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 381  The loading process is completed without sewing by performing pedal strokes. 6. To exit the test: access the menu Service > Machine test > Machine workflow test again and press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 382  The step by step test allows you to test the machine workflow. 3. To exit the test: access the menu Service > Machine test > Machine workflow test again and press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 383 The cycle time allows you to optimize the machine settings. 2. To exit the test: access the menu Service > Machine test > Machine workflow test again and press the button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 384  The display switches to Test step motor. Fig. 349: Test step motor To test the step motor: 1. Press the button.  Reference run is carried out. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 385 If there is a difference between the Encoder and Position values, you can reset the values by carrying out a reference run. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 386 Touch calibration  p. 386 Touch test  p. 387 To adjust and test the control panel: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 387 Fig. 351: Adjust brightness and contrast To adjust the brightness of the display: 1. Move the controller. • Increase brightness: Slide the controller to the right • Reduce brightness: Slide the controller to the left Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 388 To do so, press your finger on the control panel while the control panel boots up until the boot loader appears. The boot loader shows the current calibration values in the Device information menu. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 389 Programming Touch test  The display switches to Touch test. Fig. 353: Touch test The Touch test menu item allows you to draw on the touch screen. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 390 • -3.5: Needle transport against sewing direction Split needle bar On/Off To test the needle transport: 1. Press the button.  Reference run is carried out. 2. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 391 2. Enter the desired correction value using the numeric keypad.  The needle bar moves to the specified position. 3. Keep correcting the value until the needle pierces exactly in the center of the throat plate cutout. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 392 Move to height of stroke  p. 392 Move middle knife to upper position  p. 392 Reference To test the middle knife: 1. Press the button.  Reference run is carried out. 2. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 393 Set the distance of the middle knife incision to the seam end -99 mm - 99 mm To adjust the middle knife: 1. Press the desired button. 2. Enter the desired value using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 394 The arrows in the left half of the display indicate the correction direction: Correction upward (middle knife less deep) Correction downward (middle knife deeper) The values produced by the test are used as reference values for all programs. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 395  p. 394 Test programmable marking lamps (crosswise to sewing direction)  p. 396 Information If only one of the programmable marking lamps is active, the menu switches directly to the corresponding submenu. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 396 • 0 mm - 220 mm To test the programmable marking lamps: 1. Press the button.  Reference run is carried out. 2. Press the button  The desired positioning point has been selected. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 397 Select rear positioning point Adjust programmable marking lamp position 1 • -100 - 100 Adjust programmable marking lamp position 2 • -100 - 100 Adjust programmable marking lamp position 3 • -100 - 100 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 398  Reference run is carried out. 2. Press the button  The desired positioning point has been selected. 3. Press the button. 4. Enter the desired value using the numeric keypad. 5. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 399 Adjust programmable marking lamp position 1 • Value range -100 - 100 Adjust programmable marking lamp position 2 • Value range -100 - 100 Adjust programmable marking lamp position 3 • Value range -100 - 100 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 400 Lift/lower transport clamp Switch step motor current-free Switch pick-up folder pressureless To test the transport clamp: 1. Press the button.  Reference run is carried out. 2. Press the desired button. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 401 • -10.0 mm - 10.0 mm Set distance inner position right clamp, double pipe • -0.0 mm - 40.0 mm Set distance outer position right clamp, single pipe right • 0.0 mm - 40.0 mm Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 402 To perform an update: 1. Press on the screen.  A prompt appears on the display asking if you wish to perform the update. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 403  The update is carried out. Fig. 368: DAC update (3) Important Do not switch off the machine while the update is in progress!  The display shows notice 8408: Waiting for Reset by machine. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 404 After restarting, the machine loads the start screen and is ready for operation. The progress of the update is indicated by a progress bar. When the update is complete, the control panel will perform a restart. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 405 Test the working memory RAM  p. 409 Display of the external devices  p. 410 Test the read-only memory ROM  p. 411 Sewing drive test  p. 412 PWM test  p. 414 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 406 The list contains the last 10 error messages as well as the date and time of each error. Information The correct display of date and time requires that you set date and time in the Maintenance menu item ( p. 424). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 407 Corner knife station swiveled in Sewing material removal Oil monitoring Folder down Folding station in initial position Flap scan 1 Flap scan 2 Flap angle left Flap angle right S101 Ref. transport unit Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 408 Blow out fluff RFW + thread advancing device needle thread tension right Needle left on Needle right on Lift folder off Lower folder Vacuum on Lower downholder Marking lamp 1 Marking lamp 2 Marking lamp 3 Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 409 Pocket bag clamp YC109 Zipper drive dog (grab) YC110 Zipper cutter (swivel) YC111 Zipper cutter (cut) YC112 Zipper folder, 2 cylinder YC113 Zipper drive dog forward YC114 Transport clamp zipper drive dog Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 410 Needle transport StepMot Transport clamp left StepMot Transport clamp right The area State can display 3 different status messages: • conn = connected • nc = not connected • err = error Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 411 1. If the result is shown as OK, press OK to confirm.  The display returns to Multi test. Information If the RAM test shows an error, back up your data and contact Customer Service ( p. 451). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 412 Corner knife station: Slant activation seam beginning/seam end St2Ext Corner knife station: Angle adjustment seam beginning left/right St2Ext Corner knife station: Angle adjustment seam end left/right St2Ext Outfeed roller/tape feeder St2Ext Laser adjustment Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 413 1. If the result is shown as OK, press the OK button to confirm.  The display returns to Multi test. Information If the ROM test shows an error, back up your data and contact Customer Service ( p. 451). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 414 • Indicated position: Value of the motor setpoint device (exact motor position) To test the sewing drive: 1. Press the desired button. 2. Enter the desired values using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 415 Do NOT reach into the moving part of the machine. NOTICE Property damage may occur! Jamming of the machine. Unthread the needle thread before starting the sewing drive.  The sewing drive starts at the set speed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 416 The PWM test is used to test the assemblies. To carry out the PWM test: 1. Press the desired button. 2. Enter the desired values using the numeric keypad. 3. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 417 Read data from the USB key  p. 419 To read and write data to and from the USB key: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 418 • All seam programs and sequences • Global parameters • Machine config. • All data  The selected option is highlighted in orange. 2. Press the button to confirm.  The display switches to a keypad. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 419  The software checks the USB key. The selected option is written to the USB key. Depending on the amount of data selected, the process may take anywhere from a few seconds to approx. 2 minutes. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 420  When the data has been written to the USB key, the display shows the message Data successfully written: XY. Fig. 383: Data transfer to USB (3) 5. Press OK.  The display returns to USB data transfer. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 421 • Machine config. 2. Press the button to confirm.  The software checks the USB key. If you saved an information text for the backup file, the text will be displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 422 You can cancel the USB data transfer with a press on the button. The write process can take between a few seconds and several minutes depending on which write option has been selected. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 423 Programming  When the data has been written to the OP7000, the display shows the message Data successfully read: XY. 4. Press OK.  The display returns to USB data transfer. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 424 Initialize RAM • All stored data will be lost All machine data is initialized at the same time (master reset) • All settings will be reset to the factory default settings Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 425 2. Press OK to reset the values to their factory settings. 3. Press Cancel to cancel the initialization. Information New reference data will be loaded internally from the control or, if available, from the machine ID. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 426 Enter date and time  p. 425 for DA service staff only To edit the parameters in the Maintenance menu item: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 427  The display shows the current software version. You will need this information when contacting the DA service department for assistance. Fig. 388: Software version Date and time Fig. 389: Date and time Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 428 Programming To enter date and time: 1. Press the Date button. 2. Use the numeric keypad to enter the desired date. 3. Use the numeric keypad to enter the desired time. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 429 Language selection  p. 428 Set user password  p. 429 Button beep On/Off To set the user configuration: 1. Press the desired button.  The user interface for setting the desired item is displayed. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 430 Language selection  The display switches to Language selection. Fig. 391: Language selection To select the language: 1. Select the desired language.  The system restarts with the new language setting. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 431 Fig. 392: User password setup (1) To set up a user password: 1. Enter the desired 4-digit PIN. 2. Confirm with OK. 3. Re-enter the password (password check) 4. Confirm with OK. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 432 Programming Information After setting up a user password, you can lock the start screen for other operators with a press on the button. Fig. 393: User password setup (2) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 433 3. Switch off the machine and wait for approx. 15 seconds. 4. Connect the Dürkopp Adler USB key to the OP7000. 5. Restart the machine.  The OP7000 boot loader appears: Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 434  The machine restarts automatically. The display shows notice 8403: Machine has an outdated program. Should a new program be transmitted? 7. If the machine fails to restart: Switch off and on the machine again. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 435 Fig. 398: Update the machine software (5) Important Do not switch off the machine while the update is in progress!  The display shows notice 8408: Waiting for Reset by machine. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 436 9. Press CANCEL to cancel the update.  The following warning appears: Fig. 400: Update the machine software (7)  After confirming with OK, you can continue working with the old control software. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 437 Programming Information If the update fails, you can restart it in the service menu under DAC update ( p. 400). Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 438 Programming Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 439: Maintenance

     Check the filter element in the maintenance unit  Check the tightness of the system  Drive units and transport carriage Check state and tension of the toothed belts  Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 440: Cleaning

    Lint and thread remnants can impair the operation of the machine. Clean the machine as described. NOTICE Property damage from solvent-based cleaners! Solvent-based cleaners will damage paintwork. Use only solvent-free substances for cleaning. Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 441 2. Blow out the lenses of the light barriers (2) with a compressed air gun during every bobbin change. 3. Blow out or clean the filter ring (3) on the vacuum valve and replace it if necessary. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 442: Lubricating

    • Flash point: 150 °C You can order the lubricating oil from our sales offices using the following part numbers: Container Part no. 250 ml 9047 000011 9047 000012 9047 000013 9047 000014 Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 443: Lubricating The Machine Head

    The oil level must not raise above the MAX marking (2) or drop below the MIN marking (3). To lubricate the machine head: 1. Fill oil through the oil filler opening (1) in the inspection glass no higher than the MAX marking (2). Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 444: Lubricating The Hook

    (1). It should only be increased or reduced in exceptional cases. To lubricate the hook: 1. Set the oil quantity. • less oil: Turn the screws (1) clockwise • more oil: Turn the screws (1) counterclockwise Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 445: Servicing The Pneumatic System

    2. Turn the pressure controller until the pressure gage (2) indicates the proper setting: • Increase pressure = turn clockwise • Reduce pressure = turn counterclockwise 3. Push the pressure controller (1) down. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 446: Draining The Water Condensation

    3. Loosen the drain screw (3) completely. 4. Allow water to drain into the collection tray. 5. Tighten the drain screw (3). 6. Connect the machine to the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 447: Cleaning The Filter Element

    6. Wash out the filter tray using benzine. 7. Tighten the filter element (1). 8. Tighten the water separator (2). 9. Tighten the drain screw (3). 10. Connect the machine to the compressed air supply. Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 448: Parts List

    Maintenance 30.4 Parts list A parts list can be ordered from Dürkopp Adler. Or visit our website for further information at: www.duerkopp-adler.com Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 449: 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 755 A/756 A - 00.0 - 02/2019...
  • Page 450 Decommissioning Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 451: 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 755 A/756 A - 00.0 - 02/2019...
  • Page 452 Disposal Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 453: Troubleshooting

    • Check sewing motor cable • Test sewing motor phases (R= 2.8 Ohm, high impedance to PE) • Replace sewing motor cable • Replace encoder • Replace sewing motor • Replace control Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 454 • Check toothed belt tension tension 1052 Sewing motor excess current, • Replace sewing motor cable internal current increase to over • Replace encoder 25 A • Replace sewing motor • Replace control Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 455 • Perform software update  p. 431 • Replace control 1342-1344 Internal sewing motor error • Switch off and on the machine again • Perform software update  p. 431 • Replace control Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 456 Step motor transport clamp overheat • Step motor transport clamp • Eliminate seizing seized up • Replace transport clamp step • Faulty step motor transport motor clamp • Replace control • Control defective Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 457 • Replace reference switch 2302 Step motor tape feeder overload • blocked/sluggish • Eliminate seizing/stiff movement • defective • Check encoder cable and replace, • Control defective if necessary • Replace step motor Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 458 • Check step motor for stiff movement 2530 Step motor quick clamp adjust- • Perform software update ment left not responding: Step  p. 431 motor card defective • Replace step motor card • Replace control Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 459 Short circuit at input or output • Check connections • Replace control 3022 Control: Voltage error 24V (I2T) • Switch off and on the machine again • Check connections • Replace control Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 460 3500 • Error Command Interpreter • Switch off and on the machine • Motor synchronization Internal again error • Perform software update  p. 431 • Feedback to Dürkopp Adler Service Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 461 • Check OP7000 cable at socket X170b • Check DAC blink codes 4682 No active seam program from • Check communication • Change seam program • Delete seam program • Empty sequences Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 462 • Check reference switch • Check motor for stiff movement 5210 Error vertical step motor marking • Check cable to reference switch lamp • Check reference switch • Check motor for stiff movement Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 463 Error in machine head position • Switch off and on the machine • AD converter again • internal process error • Perform software update  p. 431 • Inform Dürkopp Adler Customer Service Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 464 CAN • Check jumpers module • Check voltage supply 7209 Voltage error in outfeed roller/ • Check cable tape feeder seam end CAN- • Check jumpers Module • Check voltage supply Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 465 • Check voltage supply 7403, 7404 Failure in I/O CAN-Module: Check jumpers/DIP switch wrong module at address 7405 Failure in bobbin thread monitor Check jumpers/DIP switch CAN-Module: wrong module at address Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 466 • Check voltage supply 7551-7555 Control panel interface communi- • Switch off and on the machine cation: internal error again • Perform software update  p. 431 • Inform Dürkopp Adler Customer Service Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 467 Should the program be retransmitted nevertheless? 8406 Information Update failed! Please check the interface to the machine. Should a new update be tried nevertheless? 8407 Information Update failed! Should the program be retransmitted? Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 468 Position of transport clamp Correct position of transport clamp in doesn't match the installed die the program parameters  p. 330 9015 Wrong setting of flap scanning in Correct seam program the seam program Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 469 Correct the scissors setting 9709 Bobbin case retainer not up Correct the downholder setting 9710 Switch S05 for the loading station Set the switch S05 for the loading does not react station Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 470 • Initialize pocket programs again (Checksum error) 9920 Serial number active 9921 Serial number not accepted Re-enter serial number 9999 Machine configuration has been Switch off and on the machine again changed Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 471: Technical Data

    1x 190 - 240 Mains frequency [Hz] 50/60 Operating pressure [bar] Length [mm] 1500 Width [mm] Height [mm] 1250 Weight [kg] 240 (including corner knife station) 260 (including corner knife station and vacuum fan) Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 472 Technical data Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 473: Appendix

    Appendix 35 Appendix 35.1 Wiring diagram Fig. 407: Wiring diagram & Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 474 Appendix Fig. 408: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 475 Appendix Fig. 409: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 476 Appendix Fig. 410: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 477 Appendix Fig. 411: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 478 Appendix Fig. 412: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 479 Appendix Fig. 413: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 480 Appendix Fig. 414: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 481 Appendix Fig. 415: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 482 Appendix Fig. 416: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 483 Appendix Fig. 417: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 484 Appendix Fig. 418: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 485 Appendix Fig. 419: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 486 Appendix Fig. 420: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 487 Appendix Fig. 421: Wiring diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...

  • Page 488: Pneumatic Diagram

    Appendix 35.2 Pneumatic diagram Fig. 422: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 489 Appendix Fig. 423: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 490 Appendix Fig. 424: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 491 Appendix Fig. 425: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 492 Appendix Fig. 426: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 493 Appendix Fig. 427: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 494 Appendix Fig. 428: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 495 Appendix Fig. 429: Pneumatic diagram Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 496 Appendix Service Instructions 755 A/756 A - 00.0 - 02/2019...
  • Page 498 DÜRKOPP ADLER AG Potsdamer Straße 190 33719 Bielefeld GERMANY Phone +49 (0) 521 / 925-00 service@duerkopp-adler.com E-mail www.duerkopp-adler.com...

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