10. STANDARD ADJUSTMENTS
㩷
DA-9280
23
10-9. Tension release shaft adjustment
Adjust the tension release shaft so that the tension discs loosen
when the presser foot is raised and tighten when the presser
foot is lowered.
1. Loosen set screw (1).
2. Make an adjustment by turning the tension release shaft (2)
so that the tension discs begin to loosen when the presser
foot rises 4 mm above the top of the needle plate.
3. After the adjustment, retighten the set screw (1) securely.
10-10. Lower thread take-up timing adjustment
Adjust so that the lower thread take-up (1) touches the thread
(2) and is raised 5 mm above the lower thread take-up base (3)
when the looper starts moving backward.
1. Insert the screwdriver through the adjusting hole [A] in the
lower thread take-up base (3), and loosen the two set
screws (4).
2. Raise the lower thread take-up (1) until it is 5 mm up from
the thread take-up base (3).
3. After the adjustment, retighten the two set screws (4)
securely.
10-11. Installing the lapper
Insert the lapper guide plate from the front into the oval slot in
the forward feed arm cover, making sure that the end of the
lapper is clear of the presser foot.
Lapper adjustment
Adjust felling distance of point [A] by loosing the screw (1). After
the adjustment, retighten the screw (1).
Adjust felling distance of point [B] by losing the two screws (2).
After the adjustment, retighten the two screws (2).
1532B
1533B
1518B
1534B
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