MC 11000
(B)
(A)
Adjusting Tension Release Mechanism
When the presser foot lifter is raised, the tension release mechanism should work
correctly. If not, adjust as follows.
Adjusting tension release claw
1. Remove the top cover unit.
2. Lower the presser foot and turn the thread tension
dial (1) until the convex part (2) of the tension dial is
aligned with the tension release claw (3).
In this condition, loosen the screw (A) and adjust the
tension release adjusting plate (4) to touch the
tension disc supporter (5) .
The tension discs should be opened slightly.
3. Tighten the screw (A).
Adjusting the thread releasing plate
4. Lower the presser foot, turn the thread tension dial
until the flat surface part touches the releasing claw
(3).
5. Loosen the screw (B).
6. Set the thread releasing lever (7) so that it touches
the thread release plate (5) slightly and tighten the
screw (B).
7. When the presser foot is raised, the tension discs
should be opened.
Note: The clearance between the tension disc supporter
and the thread releasing plate should be 0.5 to 1.0
mm (8) when the presser foot is lowered.
(1)
(2)
(3)
(4)
(5)
(7)
(8)
(4)
(5)
Presser foot
sensor switch
Thread releasing
plate
26
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