Position Of N.p. (Needle Position) Shutter - Brother BL6200 Service Manual

26. POSITION OF N.P. (NEEDLDE POSITION) SHUTTER
(B341 ⋅ B349 ⋅ B351 ⋅ B352)
STANDARD
Needle position shutter works when the needle reaches at the position of 0.4 mm lower than its highest
position.
ADJUSTMENT
1. Turn the pulley counterclockwise and set the needle at the position of 0.4 mm lower than its highest
position.
2. Loosen the screw of the rotary shutter.
3. Turn the rotary shutter slowly and adjust N.P. shutter to be at the center of photo interrupter.
4. Tighten the screw.
- 48 -