Contents page: Part 3: Service Instructions Cl. 579 Program Version 579A04 1. 1.1 General Necessary Program Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Setting the Positioning Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3. Setting the Upper Dead Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4. Setting of the Upper Dead Center for the Sewing Drive . . . . . . . . . . . . .
17. Looper Clearance to the Needle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 18. Needle Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 19. Spreader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 20. Spreader Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 21. Needle Plate . . . . . . . . . . .
3.10 Setting the Thread Monitor . . . . . . . . . . . . . . 33.11 Stitch Condensation . . . . . . . . . . . . . . . . . . 33.12 Setting the Feed Position. . . . . . . . . . . . . . . . 33.13 Setting the Eye Inclination . . . . . . . . . . . . . . . 33.14 Total Piece Counter . . . . . . . . . . . . . . . . . . . 33.15 Setting the Times . . . . . . . . . . . . . . . . . . . . 33.16 Setting the Subclasses . . . . . . . . . . . . . . . . . 33.16.1 Data for one Subclass/Equipment/Cutting Length . 33.16.
1. General These Service Instructions describe the settings of the automatic buttonhole machine in the proper order. ATTENTION! Various setting positions are interdependent. It is therefore essential that the individual settings be conducted while keeping to the order described.
1 2 3 4 5 8 9 6 6 7
2. Setting the Positioning Points Caution Risk of Injury! Set the positioning points only in the “Safe Stop” position or with the machine turned off. Rule and Control With the aid of the positioning points, an easy setting of the needle movement to the looper and spreader movements is possible. When the arm shaft is in the stake-out position, the cams for the spreader and looper must also be in the stake-out positions.
3. Setting the Upper Dead Center 1 2 3 4 Caution Risk of Injury! Set the upper dead center only in the “Safe Stop” position or with the machine turned off. Rule and Control With the aid of of the proximity switch, the automatic buttonhole machine recognizes if it is at the upper dead center in front of the left or right needle entry point. If the needle bar is at the upper dead center for the left needle entry point, the screw 2 must lie in front of the proximity switch 3.
4. Setting of the Upper Dead Center for the Sewing Drive 1 2 3 Caution Risk of Injury! Set the switching segment only in the “Safe Stop” position or with the machine turned off. With the aid of the switching segment 2, the automatic buttonhole machine recognizes that the needle bar is at the upper dead center before start of the sewing cycle.
1 2 3 Correction – Turn the machine on, the machine runs into the sewing position. – Turn the Safe Stop on. – Loosen the screws on the switching segment 3. – Turn switching segment 3 in the direction of rotation so that the switch 2 receives contact. – Turn switching segment 3 back so far that the switch 2 is deactivated again. – Tighten the screws on the switching segment 3. Correction of the clearance of the proximity switch to the disc – Loosen nut 1. 10 – Screw proximity switch 2 out or in.
5. Setting the Needle Bar Parallel to the Looper Turret 1 2 3 4 5 6 Caution Risk of Injury! Set the parallelism of the needle bar to the looper turret only in the “Safe Stop” position or with the machine turned off. Rule and Control The needle bar guide 2 and the looper turret 6 must lie parallel to one another, that is, screw 1 and the block 4 must lie vertically above one another. – Check if the block 4 on the looper turret and the screw 1 on the needle bar guide lie vertically above one another.
6. Alignment of the Looper turret to the Cloth Support Plate 1 2 3 Caution Risk of Injury! Align the looper turret only in the “Safe Stop” position or with the machine turned off. Note: Take care that a buttonhole is set as described in Chapter 1.1 “Necessary Program Settings”. Rule and Control In its initial position, the looper turret must lie at a right angle to the edge 3 of the cloth support plate.
7. Lateral Movement of the Cloth Support Plate 5 1 2 3 4 Caution Risk of Injury! Set the setting the lateral movement of the cloth support plate only in the “Safe Stop” position or with the machine turned off. 3 Note: Take care that a buttonhole is set as described in Chapter 1.1 “Necessary Program Settings”. Rule and Control The clearance between proximity switch 2 and cam plate 1 may be a max. of 0.5 mm.
8. Lengthwise Movement of the Cloth Support Plate 1 2 3 4 5 Caution Risk of Injury! Set the lengthwise movement of the cloth support plate only in the “Safe Stop” position or with the machine turned off. Note: Take care that a buttonhole is set as described in Chapter 1.1 “Necessary Program Settings”. Rule and Control The base position for the cloth support plate must be set so that the cloth support plate does not collide with other components in either end position.
9. Clamping Plates 1 2 3 4 9.1 Parallelism 5 6 Caution Risk of Injury! Set the clamping plates only in the “Safe Stop” position or with the machine turned off. Rule and Control Both clamping plates must be set so that the clearance between the clamping plates 5 and the cloth support plate 6 is the same everywhere (Dimension X1 = X2). Set a clearance which is the same along the whole length. Correction – Set pin 1. 9.
9.3 Setting the Spread 1 1 Caution Risk of Injury! Set the clamping plates only in the “Safe Stop” position or with the machine turned off. Rule and Control Dependent on the sewing materials employed, the desired spread can be set with the screw 1. Correction – Turn screw 1 until the desired spread is set.
10. Height of the Cloth Clamps 2 3 1 4 Caution Risk of Injury! Set the height of the cloth clamps only in the “Safe Stop” position or with the machine turned off. 3 Rule and Control The height of the cloth clamps 2 must be set so that the clearance between the open upper cloth clamps 2 and the lower cloth clamps (pos. 3) is 10 mm. – E.g. place a drill bit with a diameter of 10 mm between the cloth clamps in order to check the clearance. Correction – Loosen nut.
11. Setting of the Cloth Clamp Pressure 1 Caution Risk of Injury! Set the cloth clamp pressure only with the machine turned off. Rule and Control In order to avoid damage to the material or to keep thin material from bunching during clamping, the cloth clamp pressure should be set as low as necessary. Thereby, care is to be taken that the sewing material is securely and firmly clamped. Correction – Turn the machine off. – Swing the machine into the upmost position. – Set the pressure at the regulator 1.
12. Setting the Seam Width 12.1 Narrow Seam Width 1 2 3 Seam width Cutting space Buttonhole width Caution Risk of Injury! Set the stitch pattern only in the “Safe Stop” position or with the machine turned off. 3 The automatic buttonhole machine 579 has two fixed adjustable seam widths (see illustration). The value for the narrow seam width is 2.2 mm. And, for the wide seam width, it is 3.3 mm. The fixed seam widths can, additionally be enlarged or shrunk by 0.
12.2 Wide Seam Width 1 2 3 4 5 Caution Risk of Injury! Set the stitch pattern only in the “Safe Stop” position or with the machine turned off. Rule and Control – Turn the handwheel so that two screws are visible on the cam. Loosen screws 4 and 5 by one to two turns. – Turn the handwheel so that three screws are visible on the cam. Screw screws 1 and 2 in as far as possible. – Tighten screws 4 and 5. – At the display of the main menu, press the “F” key. – With the arrow keys, set code “25483“ .
12.3 Needle-Zero Setting 6 7 8 Rule and Control The needle zero position lies to the left (inside), meaning, the oscillation of the needle bar is one-sided, that is, during sewing, it moves from left (inside) to right (outside). The inner needle entries of the forward and reverse lips must, at the needle zero position, lie inline (see adjacent illustration). – Set a narrow seam width (see Chapter “Narrow Seam Width”). – Insert a short needle (see Parts List).
13. Cutting Knife 13.1 Position of the Cutting Knife 1 2 3 4 Caution Risk of Injury! Set the cutting knife only in the “Safe Stop” position or with the machine turned off. Rule and Control The cutting knife should, on machines with cutting after sewing, cut exactly between the seam rows and in the center of the eye (see illustration a). In case of cutting before sewing, the cutting knife should cut exactly on the needle entries lying above one another and around the eye (see illustration b).
The cutting knife must be set so that the knife cuts into the center of the sewn buttonhole shape. – Insert the cutting block. – Insert a short needle. – Insert a piece of paper or cardboard as sewing material. – Sew a buttonhole. – Check the position of the cut. Correction – Loosen the four screws 1 on the base plate 3. – Correct the lateral position of the cutting knife 2 accordingly. – Tighten the four screws 1 on the base plate 3. – Loosen screw 4.
13.2 Dressing of the Cutting Blocks 1 2 3 a) b) c) Rule and Control The dressing of the cutting block is necessary when it has been cut into too strongly by the cutting knife or when two different knife shapes have worked on the cutting block. See illustration b. The dressing of the cutting block must be conducted very precisely and may only be done with a faultless, straight bastard file. The illustration c shows a badly filed, the illustration a a correctly filed cutting block.
13.3 Cutting Block Setting 1 2 3 Caution Risk of Injury! Set the cutting block only in the “Safe Stop” position or with the machine turned off. Rule and Control The cutting block must lie parallel to the cutting knife. 3 Correction – Loosen screw 1. – Turn cutting block 2 with the guide. – Tighten screw 1. 13.4 Cutting Pressure Rule and Control In order that all components be subjected to minimal stress and to increase the idle period of the cutting knife, the cutting pressure can be set.
14. Looper Height 3 4 1 2 5 6 7 8 Before the setting of the looping stroke and the needle bar height and particularly after needle breakage, the correct looper height must be checked. To check the looper height, use gauge 2. Caution Risk of Injury! Set the looper height only in the “Safe Stop” position or with the machine turned off. Rule and Control When the gauge is placed on the looper turrets, the following must be fulfilled: – The drilled hole 1 of the gauge must be at the upper right.
15. Setting the Looping Stroke 1 2 3 4 Caution Risk of Injury! Set the looping stroke only in the “Safe Stop” position or with the machine turned off. Rule and Control With looping stroke, one means the distance that the needle bar travels from its lowest position up to the point at which the left or right looper tip lies at the center of the needle. In the looping stroke position the looper tip must lie at the center of the needle.
16. Needle Bar Height 1 2 3 4 Caution Risk of Injury! Set the needle bars only in the “Safe Stop” position or with the machine turned off. Rule and Control The needle bar must be set so that approx. 3/4 of the needle eye can be seen under the left looper point when the needle bar has moved 2.
17. Looper Clearance to the Needle 1 3 2 Caution Risk of Injury! Set the needle guard only in the “Safe Stop” position or with the machine turned off. Rule and Control The looper points should lie at a clearance of 0.1 mm to the needle. The looper clearance to the needle should remain the same during the whole turning movement of the looper turret. – Turn the handwheel until the left looper point lies at the center of the needle.
19. Spreader 1 2 3 4 5 6 7 8 9 Caution Risk of Injury! Set the spreader only in the “Safe Stop” position or with the machine turned off. Rule and Control There must be a clearance between the forked spreader 1 and the left looper 2 which corresponds to the thickness of the looper thread used (see adjacent illustration X). The right spreader 6 should move as closely as possible, but without contact, at the upper side of the right looper 8.
20. Spreader Plate 1 2 3 4 Caution Risk of Injury! Set the setting of the spreader plate only in the “Safe Stop” position or with the machine turned off. Rule and Control The opening and closing of the spreader occurs through the alternating motion of the spreader plate 4.
21. Needle Plate 1 2 Caution Risk of Injury! Set the needle plate only in the “Safe Stop” position or with the machine turned off. Rule and Control The needle entry point of the needle in the stitch hole of the needle plate should occur one-sidedly at the edge 1. The needle plate must be set as far up as possible. This prevents the material from being pressed too far down at the entry point of the needle.
22. Setting the Needle Thread Knife 1 7 6 2 3 4 5 Caution Risk of Injury! Set the needle thread knife only in the “Safe Stop” position or with the machine turned off. Rule and Control After sewing, the cutting motion of the needle thread knife occurs. The precise cutting moment is established at the controls. While turning in the direction of rotation, the spreader stop should not touch the knife holder.
23. Thread Take-up Disk 1 2 5 Rule and Control – Insert a positioning pin into the drilled hole 5 of the sewing machine and arrest the sewing machine in the stake-out position. The looper support must be in the left end position thereby. – Insert a pin (2 mm diameter) or the shank of the needle through the drilled hole 2 in the thread take-up disk. – The pin must touch on the right side of the thread guide 1.
24. Gimp-pull Mechanism for Subclass -141000 1 2 3 Caution Risk of Injury! Set the gimp-pull mechanism only in the “Safe Stop” position or with the machine turned off. Rule and Control The drop weight 3 with the adjustable brake flap 2 pulls the gimp back to the correct starting length. The path of the drop weight must be limited by the stop screw 1 so that, at the start of sewing, the gimp is as short as possible, but is still securely sewn on.
1 2 6 36 7 3 4 2 8 3 5 9
25. Short Trimmer for the Looper Thread and Gimp (579-141000) Caution Risk of Injury! Set the short trimmer only in the “Safe Stop” position or with the machine turned off. Rule and Control The blades of both shears 2 and 3 must have moved approx. 1 mm over one another in front of their reversal point. The cutting pressure must be set so that the looper thread and the gimp are securely cut. Thereby the knife should not move sluggishly or block.
26. Long Trimmer for Looper Thread and Gimp (579-121000) 26.1 Cutting Pressure and Cutting Movement of the Looper and Gimp Thread Trimmer 1 2 3 4 6 7 8 9 Caution Risk of Injury! Set the thread gripper and thread deflector only in the “Safe Stop” position or with the machine turned off. 5 Rule and Control The deflector 3 is mounted above the fixed knife 2. It prevents the looper thread end and the gimp from lying between knife 2 and the back of the thread catcher 7.
26.2 Setting the Overlap of the Knife 1 7 5 2 3 4 6 X Caution Risk of Injury! Set the long trimmer only in the “Safe Stop” position or with the machine turned off. Rule and Control The blades 1 and 2 must move approx. 1 mm over one another. It must be possible to insert the clamping plate without clamping. The roller 7 must grip in the throat of the link 5. – Remove the right clamping plate. – Insert the right clamping plate again. It must be possible to insert the clamping plate without clamping.
12 3 4 5 6 Abb. a) 2 40 5 9 7 8 Abb.
26.3 Position of the Looper Thread and Gimp Clamp Caution Risk of Injury! Set the position of the looper thread and gimp clamp only in the “Safe Stop” position or with the machine turned off. Rule and Control The looper thread and the gimp are clenched by the long trimmer together under the clamping plate. The looper thread and the gimp must be held so firmly that a secure and tightly pulled seam beginning is assured.
Notes: 42
27. Short Trimmer for the Looper Thread (579-112000) 11 10 After completion of the seam, the cutting movement of the needle thread knife occurs. At the same time, the short trimmer is brought into the base position for the looper thread. Thereby, the looper thread slides from the blade of the knife. Then the short trimmer is switched back. The looper thread is clamped und cut through the switching back.
28. Thread Catcher 28.1 General With the exception of subclass 579-151000, all subclasses have a needle thread catcher as standard equipment. The subclass 579-151000 can be retro-fitted with the needle thread catcher, if desired. The function of the thread catcher is automatically switched off by buttonholes longer than 38 mm. The fitting is not possible, however, when equipped with the “Upper Gimp Guide” component.
28.2 Setting 1 2 3 4 5 6 7 8 Caution Risk of Injury! Set the thread catcher only in the “Safe Stop” position or with the machine turned off. Rule and Control The thread catcher must securely catch the needle thread after the sewing of a buttonhole. The thread catcher must position the needle thread in the right lip. The thread catcher should not collide with the clamping plates.
12 Correction Height of the thread catcher and clearance of the thread catcher to the needle – Loosen screws 5 and 6. – Adjust the height of thread catcher unit. The clearance to the needle bar guide must be 2 mm. – Tighten screws 5 and 6. – Set the clearance to the needle through the stop screw 12. The clearance from the thread catcher to the needle must be approx. 7-8 mm (dimension X). The clearance to the needle can in some cases also deviate slightly from this value.
29. Setting the Toothed Belt Tension General Malfunctions of the drive motors can be caused by too low toothed belt tension. Further, it is very important that the toothed belts, dependent on running time, be cleaned of dust and thread residue. Dust and thread residue lodges between the teeth and become stuck because of the oil. Thus malfunctions can occur which can possibly lead to damage to the machine. Possible malfunctions can be e.g.
29.1 Toothed Belts for the Sewing Drive 1 2 3 4 5 6 7 Correction-Toothed belt 1 – To set the tension of the toothed belt, turn the cam 2. Correction-Toothed belt 3 – To set the tension of the toothed belt, loosen the screws 4. – Move the motor 6 – Tighten screws 4. Correction-Toothed belt 5 – To set the tension of the toothed belt, turn the cam 7.
29.2 Toothed Belts for the Rotation of the Sewing Mechanism 1 2 3 4 5 6 Correction-Toothed belt 5 – Turn cam 6. Correction-Toothed belt 4 – Loosen screws 2 and 3. – Move the toothed wheel 1. – Tighten screws 2 and 3. 3 Correction-Toothed belt 7 – Loosen screws 8 and 9. – Move the motor. – Tighten screws 8 and 9.
29.3 Toothed Belts for the Motion of the Cloth Support Plate 1 2 3 Correction-Toothed belt 1 – Loosen the lock nut 6. – Adjust the toothed belt tension with the 2nd nut – Tighten lock nut. Correction-Toothed belt 2 – Loosen screws 4 and 5. 4 50 5 6 – Adjust the height of the drive motor 3. – Tighten screws 4 and 5.
30. Alignment of the Needle Bar’s Center of Rotation to the Looper Turret’s Center of Rotation 1 2 3 4 6 7 5 ATTENTION ! This setting is to be made only in exceptional cases, as a rule, this setting is not necessary. The sewing mechanism is aligned at the factory so that the needle bar-center of rotation and looper turret-center of rotation lie above one another. This position is secured by the positioning screws 1 and 4 and the fastening screws 2 and 3.
31. Needle Bar Guide 5 6 a) b) Caution Risk of Injury! Conduct the setting of the needle bar guide only with the machine turned off. Rule and Control If the needle bar guide was disassembled, care is to be taken when re-assembling that the clearance between swing sleeve 5 and guide 6 is equal on both sides (dimension X1 equals dimension X2). If the clearance differs, the stitch pattern appears displaced (see illustration above right). a) Correct stitch pattern.
32. Maintenance 1 Caution Risk of Injury! Turn the main switch off. The maintenance of the sewing machine may only be conducted when it is turned off. The maintenance tasks to be performed by the operating personnel of the sewing machine on a daily or weekly basis (cleaning and oiling) are described in the Part 1: Operating Instructions. They are included in the following table only for the sake of completeness.
33. Service Menu 579 In the service menu of the 579, several base settings of the automatic sewing machine can be made and a number of test programs conducted. No maintenance or final position tasks are to be undertaken in the service menu. Caution Risk of Injury! Before beginning maintenance or final position work: Turn the main switch off or bring the machine into the “Safe Stop” position. 33.
33.4 Menu Structure 3 Ohne Riegel Schnürloch Nahtanf.: Nahtende: Ein Ein Nahtanf.
33.5 Setting the Language of the Menus – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Configuration - Operation - Languages The language selection menu appears. A check mark appears behind the currently selected language. – Select the desired language with the arrow keys. – Press the “OK” key. The language is changed immediately. 33.6 Setting the Sewing Modus 3 The sewing modus must be setup. Please check chapter 9.4.
33.7 Setting the Function of the Hand Switch The method of operation of the hand switch can be changed. 1st Setting (Hand switch: 0 in the menu) – Key 1: Clamps are opened or closed. – Key 2: The sewing cyle starts when the clamps are closed. 2nd Setting (Hand switch: 1 in the menu) – Key 1: Clamps are opened or closed. – If they are not already lowered, the clamps are lowered. The sewing cycle starts.
33.8 Setting the Knife Position The position of the knife can be corrected in this menu. The position of the knife can be corrected by +-0,3 mm on both axes. Which direction is meant by “+” and “-” is shown in the symbol at the lower left in the display. – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Configuration - Machine - Cutter position The “ Setting the Cutter Position ” menu appears.
33.10 Setting the Thread Monitor The thread monitors for the looper thread and the needle thread can be set in this menu.
33.11 Stitch Condensation The stitch condensation at the seam beginning and seam end are turned on and off in this menu. 3 – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Configuration - Machine - Stitch condensation The “ St. comp. ” menu appears. – Should you want to change the stitch condensation for an eyelet, select “Eyelet”, otherwise select “Without Tack”. – Select" S. start“ (seam begin) or ” S.
33.12 Setting the Feed Position The feed position can be established here. The following values can be set: When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Configuration - Machine The “Machine” menu appears. 1 = The material is fed at the position for cutting a buttonhole. 2 = The material is fed at the seam beginning position – Select “ Feed Position W0” with the arrow keys. – Press the “OK” key.
33.15 Setting the Times The various time intervals which control the sewing cycle can be set in this menu. The values in brackets are the default values. ATTENTION ! Change this setting only after consultation with DÜRKOPP ADLER. – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Configuration - Times The “Times” menu appears. – Select the time interval to be changed with the arrow keys. – Press the “OK” key.
T4 (Needle thread trimmer) Standard: 170 with 579-112000: 140 Setting range 0-400 - Activation period for the valve Y06 The interval from the turning on to the turning off of the valve. T5 (Needle thread drawer) Standard: 50 Setting range: 0-100 T5 applies only in case of trimming before the sewing - The needle thread is drawn forward - Trimming residue is vacuumed off - The intervals T14 and T5 are run through.
T15 (Looper thread trimmer) Only in case of 579-121000 and 579-141000 Standard: 100 (579-121000) 50 (579-141000) Setting range: 0-500 - Activation period for the valve Y10 (looper thread trimmer) T16 (Sewing mechanism rotation) Only in case of 579-121000 and 579-141000 Setting range 0-100 Standard: 1 - Valve Y10 or Y08 (depending on subclass) is switched back. - The interval T16 is run through The sewing mechanism is rotated back into base position.
T26 (Cutter) Standard: 1000 Setting range: 0-2000 The buttonhole is not cut open (no contact/no knife/no block) The interval T26 is run through. The cutter cylinder is switched back. T27 (Clamp plate) Standard: 100 Setting range: 0-300 The clamp is closed The interval T27 is run through. The material is spread. Care must be taken that the clamps are closed first before the material is spread. 33.16 Setting the Subclasses The subclass can be set in this menu.
– When there is no memory available for further buttonhole shapes or buttonhole sequences, the following menu appears instead of the confirmation request. It allows you to delete data to free the memory for the new program data and shifting the subclass. 33.16.1 Data for one Subclass/Equipment/Cutting Length Too much Buttonhole programs If you reach the number of 50 buttonhole programs in one Subclass/Equipment/Cutting Length, the selection menu for deletion beside appears.
Too much buttonhole sequences If you reach the number of 25 sequences in one Subclass/Equipment/Cutting Length, the selection menu for deletion beside appears: – Select the Buttonhole program with the arrow keys. – Press the “OK” key. The confirmation screen menu beside appears: – After confirming with the arrow key “ð” for “Yes” a mark appears on the right of the number. You can select simultaneously several sequences. – After selecting the sequences to be deleted press the “ESC” key.
33.16.2 Data for several Subclass/Equipment/Cutting Length All data (Buttonhole programs and Sequences) for the available Subclass/Equipment/Cutting Length will be listed. Important: The current Subclass/Setup will not be listed, which means the data cannot be deleted. – Select the Subclass/Setup to be deleted with the arrow keys. – Press the “OK” key. The confirmation screen menu beside appears: – After confirming with the arrow key “ð” for “Yes” a mark appears on the right of the number.
33.17 Output Test ATTENTION ! The turning-on of output elements can lead to collisions with other machine elements and to damage to the automatic sewing machine. Before any output element is turned on make sure that this cannot collide with other components of the automatic sewing machine. One can switch individual or several outputs in this menu.
33.18 Input Test One can test individual inputs in this menu. – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Test Functions - Multitest - Input Test – Select the desired input with the up and down arrow keys. The current status of the input is shown behind the input number: - = Input not activated + = Input activated – Manually move that part of the automatic sewing machine which triggers the appropriate input.
33.19 Sewing Motor Test One can test the sewing motor in this menu. When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Test Functions - Multitest - Sewing Motor Test The “ Sewing Motor Test ” menu appears. Behind “Software” and “Date”, the software version and the generation date of the software for the sewing motor appear. Testing the sewing drive – Press the arrow-up key. The sewing drive starts with a speed of 100 rpm.
33.20 Step Motor Test The step motors for the three motion axes of the 579 can be tested in this menu. When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Test Functions - Multitest - Step Motor Test The “ Step Motor Test ” menu appears. – Select the desired axis with the arrow keys. – Press the “OK” key. – If the step motor for the lateral or rotational axis is selected, move the motor with the arrow-left and -right keys.
33.21 RAM Test The RAM memory of the 579 can be tested in this menu. When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: - Test Functions - Multitest - RAM Test The “RAM Test” menu appears. – The RAM test starts as soon as the menu is called up. The message “Please wait...” appears in the display. – If the RAM of the 579 is okay, OK appears behind “SRAM” and “NVSRAM”. – If there is an error, “F” appears. 33.
33.23 Sewing Process Testing Program With the aid of the “Sewing Process” testing program, the switching order of the valves can be checked. This testing program is particularly helpful for the setting of the thread catcher and the thread trimming systems because one can see precisely how the individual components lie in regard to the needle thread, looper thread and the gimp. Caution Risk of Injury! The “Sewing Process” testing program serves only for the checking of cycles and functions.
– The sewing motor can be switched on or off during the sewing process with the stop points. – Select the menu item “Not Sewing Process” with the arrow keys. – Press the “OK” key. – Select the desired value with the arrow keys. – Press the “OK” key. 33.24 Step Loss Test The stiffness of the 3 axes can be tested in this menu.
33.25 Program Data Buttonhole programs Sequences The menu item above shows the memory space available for buttonhole programs and buttonhole sequences. The maximum space available should be: 49 buttonholes and 24 sequences – When you are in the service menu, sequentially select the following menu items with the arrow keys and the “OK” key: -Test functions -Program data The “Program Data” menu appears.
33.26 Loading a New Program Version After the turning-on of the machine, the DA logo and program version appear in the display. It is possible to load a new program version with a bootbox and corresponding download cable und RAM card. Additionally, the possibility of loading a new program version via a normal PC with appropriate download cable und a CD ROM exists.
34. Error Messages Caution Risk of Injury! Search for and remedy errors only in the “Safe Stop” position or with the machine turned off. No.
No.
35. Troubleshooting Error description Possible cause Error remedy The automatic sewing machine does not start A symbol, which gives the possible cause appears in the display. Turn the handwheel in the direction of rotation so that the needle is at the upper dead center.
Thread breakage 82 Thread tension is set too tight Check the thread tension (see Operating Instructions “Thread Tension”) The material is not held properly Check the cloth clamp pressure (See “Cloth Clamp Pressure”) The material is not or too little spread Check the spread (See “Setting the Spread”) Dependent on the material, material weight and thread used, the appropriate needle size must be selected Change the needle size (see Operating Instructions “Needles, Threads and Gimps”) Attention! After
Loose Stitches The buttonhole is not cut open cleanly Needle breakage Thread-guiding parts, such as e.g. thread conductor, thread guides or thread take-up disk have sharp edges Check the thread path to see if thread-guiding parts have sharp edges Check if the needle plate, the looper or the spreader have been damaged by the needle Have the parts dressed by service personnel.
No secure seam beginning or unthreading Faulty transport of the cloth support plate Faulty rotation of the sewing mechanism 84 When the remaining tension for the needle thread is set too tight and thus the start thread for the next sewing start becomes too short.
The sewing mechanism can only be moved with difficulty with the machine turned off.
