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Replacement
Maintenance &
Replacement
Maintenance &
Replacement
Sub tension assy
1. Remove the tension base from the machine.
2. Remove the cap from the thread guide tension screw.
3. Remove the thread guide tension screw from the tension
base.
*Key point
• When the thread guide tension screw is removed
from the tension base, Nut 2 M3 in the tension base
comes off. Be sure to keep it for later use.
4. If the upper thread eyelet base and thread guide tension
plate are detached, set them on the tension base again.
5. Attach the thread guide compression to the sub tension
assy.
6. Secure the nut (Nut 2 M3) into the hole of the tension base
to attach the sub tension assy to the tension base.
7. Attach the cap to the sub tension assy.
8. Turn all sub tension assy tabs anti-clockwise so that they
are at the highest position to provide the least load onto
the upper thread.
9. Sew trial stitches to check if it works properly.
*Key point
• If it does not sew properly, fine-tune the upper thread
tension by turning the tab.
To replace the “thread guide tension screw” to the upper thread adjustable “sub tension assy” on the machine with
“thread guide tension screw”, follow the instructions below.
Tension base
Nut 2 M3
Upper thread
eyelet base
Thread guide
tension plate
Thread guide
tension screw
Cap
Tension base
Nut 2 M3
Upper thread
eyelet base
Thread guide
tension plate
Cap
Sub tension assy
Thread guide
compression
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