Upper Thread Tension - Brother XR9000 Service Manual

Adjustment

Upper thread tension

1. Raise the presser foot lever.
2. Set the thread tension dial to [4].
3. Pass the Schappe Spun Thread #60 through the thread tension disc.
4. Lower the presser foot lever.
5. Pull the thread by a tension gauge, and turn the thread tension adjusting screw, and adjust the tension to 0.37 to
0.42N (38 to 43g).
6. Apply a small amount of thread locker to thread tension adjusting screw.
XA9154001 Tension gauge 50 (0.5N)
4
Thread tension disc
Thread tension
adjusting screw
0.37 - 0.42N (38 - 43g)
4 - 5