Upper Thread Tension Adjustment - Brother CS8000 Series Service Manual

Adjustment (Main Unit)
1. Attach the operation PCB assy. flat cable and power PCB assy. lead wire connector to the main PCB assy., and
attach the front cover to the arm bed. (without screwing it on).
2. Press and
3. <S2>
Select using
<S3>
Select using
middle base line position.
4. Raise the presser foot lifter.
5. Turn the thread tension dial to the "standard" position.
6. Pass a Schappe Spun Sewing Thread #60 through the tension disc.
7. Lower the presser foot lifter.
8. Pull the thread with a tension gauge, and adjust the thread tension adjusting screw so that it is 0.436 - 0.466N
(44.5 - 47.5 g).
9. Apply a small amount of screw locking compound to the thread tension adjusting screw.
Screw locking compound for thread tension
adjusting screw
XA9154001
www.promelectroavtomat.ru

Upper thread tension adjustment

while turning the power on (the buzzer will sound four times, and test mode will start).
, press twice, and set the needle bar to the middle base line position.
or , and after pressing
Small amount
Tension gauge 50 (0.5 N)
, press twice, and set the needle bar to the
4 - 13