Home Contents Page: Preface and General Safety Information Part 1: Operating Instructions Cl. 506 Product Description Description of the Proper Use and Proper Application ..... . . Short Description .
1. Product Description 1.1 Description of the Proper Use and Proper Application The 506 is a robust, heavy-duty, curve-guided single needle doulble saddle stitch short seam unit for seams of stitch type 301. This short seam unit is designed for use in sewing heavy-weight fabric, as well as thick and hard leather.
Pneumatic Clamp Opening The stroke of the holder clamp is a maximum 20 mm. This stroke allows the working of almost all sewable materials and leather thicknesses. Electric Thread Burning Device The thread separator device separates the needle and underthread by burning immediately at the top edge of the material.
2. Operation 2.1 Automatic Sewing Sequence ATTENTION ! Before commissioning it is essential that the number of stitches per curve disk revolution be set at the internal DIP switch (b500) of the controls appropriate to the curve disk used (see Part 4: Short Description Multicontrol).
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– For a secure sewing-on draw the thread end hanging out of the needle taut to the side when starting the first sewing sequence and hold tight. After the first stitches the thread can be released again. – The automatic sewing sequence runs through according to the selected sewing program (P01 - P03).
2.2 Needles and Yarns Needle system: 428; 428 Serv Nm 250; 794 (depending on the type of sewing thread and sewing material used) Needle thickness: Nm 120 - Nm 280 (depending on the type of sewing thread and sewing material used) Yarns: Synthetic sewing yarns (30/3 to 8/3) Changing the needle:...
2.3 Threading the Needle Thread Caution Risk of Injury ! Turn the main switch off. Thread the needle thread only with the unit turned off. The threading of the needle thread occurs as shown in the pictures alongside in increasing numerical order: –...
2.4 Changing the Bobbin Remove the empty bobbin – Press the " " key. For better accessability by the seamstress a second key with the same function is to be found at the left on the head cover. – Hold the cover 4 and push the arresting lever 1 up to unlock the cover.
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Inserting a full bobbin – Place the full bobbin in the bobbin case 2. Here take care that when thread is being pulled off the bobbin must turn counterclockwise (see the arrow direction)! – Swing in the bobbin case 2. –...
2.5 Thread Tension Set the thread tensions appropriate to the yarn types and thicknesses used so that a clean seam formation results. Too high thread tensions cause a crimping of the sewing material. Too low a bobbin thread tension can lead to missing stitches. Setting the needle thread tension –...
3. Bobbin winder Reeling on the spool thread – Place yarn reel on reel stand. – Thread the thread through the holes 1 in the reel stand. – Pass the thread through the tension discs of tensioner 2. – Pass the thread through the tension discs of tensioner 3 of the reel. –...
4. Maintenance Caution Risk of Injury ! Turn the main switch off. Maintenance work on the unit may only be conducted with the machine turned off. 4.1 Cleaning A clean machine protects against malfunctions ! Daily cleaning: – Particularly the areas around the needle thread guides and tensions, thread controller spring and hook are to be cleaned of sewing dust and lint accumulations (e.g.
4.2 Lubrication For lubrication of the machine use only ESSO SP-NK 10 lubricating oil. SP-NK 10 is available from DÜRKOPP ADLER AG sales offices. Check the oil level in the oil reservoir of the oil mister The run of the barrel shuttle is lubricated and cooled by compressed air enhanced with oil from the oil mister.
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Daily lubrication: – All lubrication points marked on the two following pictures must be given a few drops of oil daily without fail.
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Weekly lubrication: – All lubrication points marked on the two following pictures must be given a few drops of oil weekly without fail. For this remove the side cover of the curve disk.
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