Brother CE-8080PRW, Service Manual

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Adjustment Upper thread tension
[Adjustment standard]
Pass the schappe spun thread #60 through thread guide path, and lower the presser lever, and pull the thread down
slowly with the tension gauge, then adjust the thread tension must be 0.32 to 0.37N (33 to 38g).
[Adjustment procedure]
1. Remove the face plate.
2. Set the thread tension dial to [4].
3. Raise the presser lever.
4. Pass the schappe spun thread #60 through the thread guide plate assy., tension disk in this order.
5. Lower the presser lever.
6. Pull the thread down slowly with the tension gauge, and turn the thread tension adjusting gear with the hex
wrench (3mm), to adjust the thread tension to 0.32 to 0.37N (33 to 38g).
*Key point
• Loosen the
thread tension adjusting gear
. (turn to the left)
⇒
Tension larger.
• Tighten the thread tension adjusting gear . (turn to the right)
⇒
Tension smaller.
XA9154001 Tension gauge 50 (0.5N)
Thread tension adjusting gear
Hex wrench
(3mm)
Thread guide plate assy.
Thread tension dial
Schappe spun thread #60
Thread tension disc
Schappe spun thread #60
Tension disk