We will discus here the procedure of thread take-up spring adjustment. maximum of the sewing machines adjustment is almost same. So like to request first learn how does this function work.
How to Adjust thread take-up spring
The standard position of the thread take-up spring (1) is 6 to 8mm [4–6 mm for -4 & 5 specifications] above the surface of the thread guide (3) when the presser foot (2) is lowered.
- Lower the presser foot (2).
- Loosen the set screw (4).
- Turn the thread tension bracket (5) to adjust the spring position.
- Securely tighten the set screw (4).
Thread take-up spring tension
The standard tension of the thread take-up spring (1) varies in accordance with the machine specifications as shown in the table.
- Push the needle thread with your finger until it is slightly higher than the thread tension bracket (5) and so that the upper thread is not pulled out.
- Pull the upper thread down until the thread take-up spring (1) is at the same height as the base of the thread guide (3), and then measure the tension of the thread take-up spring (1).
- Insert a screwdriver into the slot of the tension stud (6), and turn the screwdriver to adjust the tension of the thread take-up spring (1).
NOTE: If using the tension gauge (7) (sold separately) to measure the tension, take the reading from the scale on the side of the red line.
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