Dürkopp Adler HVP 20-4-25 for DA-251 Instruction Manual
![Dürkopp Adler HVP 20-4-25 for DA-251 Motor manual cover](/images/IcnmhujShgbQfEeLgVRYlmfO/thumbs/thumb175x175.webp)
To adjust the tension, locate the tension adjustment knobs on the machine. Turn them clockwise to increase tension and counterclockwise to decrease it until the desired tension is achieved.
Regular maintenance includes cleaning the motor, checking for loose connections, lubricating moving parts, and ensuring the motor is free from any debris or obstructions.
Check for correct threading, ensure the needle is not bent, verify tension settings, and inspect the thread path for any obstructions or damage.
It is recommended to use needles that are compatible with the material being sewn. Refer to the machine's manual for specific needle size and type recommendations.
To reset the DA-251 Motor, turn off the power, wait for a few minutes, and then turn the power back on. If the issue persists, check for any obstructions or consult the manual.
Use a soft cloth to wipe down the machine. Avoid using harsh chemicals. Clean the bobbin area and ensure no lint or thread particles are obstructing the moving parts.
Ensure that the machine is threaded correctly, use the right needle, adjust tension settings, and verify that the fabric is being fed smoothly through the machine.
Signs include unusual noises, overheating, reduced performance, or frequent tripping of circuit breakers.
To change the presser foot, lift the presser foot lever, release the current foot, position the new foot, and lower the lever to secure it in place.
Check the feed dogs to ensure they are raised and not worn out. Also, ensure the presser foot pressure is set correctly for the type of fabric being used.