Dürkopp Adler Beisler 1500-70 Operating Instructions

To thread the Dürkopp Adler Beisler 1500-70, begin by placing the spool of thread on the spool pin. Guide the thread through the thread guide, then down to the tension discs. Pull the thread up through the take-up lever and finally insert it through the needle eye from front to back.
If the machine skips stitches, check if the needle is bent or blunt, and replace it if necessary. Ensure that you're using the correct needle type and size for your fabric, and re-thread the machine to make sure the thread is passing through all guides correctly.
To adjust the tension, locate the tension adjustment dial on the machine. Turn the dial to the right to increase tension or to the left to decrease it. Test on a fabric scrap to ensure the stitches are balanced.
Regular maintenance includes cleaning lint and dust from the bobbin area, oiling the machine as specified in the user manual, and routinely checking for loose screws or worn-out parts. Schedule professional servicing annually.
If thread is bunching, ensure the machine is threaded correctly and the bobbin is inserted properly. Check the tension settings and re-thread both the upper thread and bobbin if necessary. Clean the bobbin area to remove any lint buildup.
To replace the needle, turn off the machine and lift the presser foot. Loosen the needle clamp screw, remove the old needle, and insert a new one with the flat side facing the back. Tighten the needle clamp securely.
Use a heavier needle suitable for thick fabrics and adjust the presser foot pressure if needed. Ensure the tension settings are appropriate for the fabric weight, and consider using a walking foot for better fabric feed.
Unusual noises may indicate that the machine needs cleaning or lubrication. Check for any loose screws or parts and tighten them. If the noise persists, consult the user manual or contact a professional technician.
To prevent fabric puckering, ensure that the tension is correctly set and use the right needle and thread for your fabric. Stabilize lightweight or stretchy fabrics with interfacing or a stabilizer.
Always turn off the machine and unplug it when performing maintenance or changing needles. Keep fingers away from the needle area during operation, and ensure all guards and covers are in place before use.