Tension Release Mechanism - Brother HE-800A Service Manual

1. MECHANICAL DESCRIPTIONS

1-9. Tension release mechanism

[Zigzag tension control]
1. When a thread tension ON signal is input, the tension release solenoid (1) operates.
2. The plunger (2) moves in the direction of the arrow, and the movement is transmitted to the tension release
solenoid link (3) that is connected to the plunger (2).
3. The tension release link (4) that is connected to the tension release solenoid link (3) operates with the shoulder
screw (5) as a pivot and presses against the tension release pin (6).
4. The tension release pin (6) presses against the tension disc presser (7) to release the tension discs.
10
HE-800A
4056Q