10. STANDARD ADJUSTMENTS
35
KE-484C
10-3. Adjusting the needle clearance
Turn the machine pulley to align the tip of the rotary hook (1)
with the needle center line. Then loosen the set screw (2) to
adjust so that the clearance between the needle and the
rotary hook (1) is 0.01 - 0.08 mm.
10-4. Adjusting the thread take-up amount
At the time of shipment from the factory, the thread take-up amount (stroke) of the thread take-up lever (1) is set to the
standard setting of 7 mm. You may need to adjust this setting depending on the sewing conditions to prevent the thread from
pulling out at the sewing start.
[Adjustment method]
Loosen the nut (2) and move the stopper (bolt) (3) to adjust the protruding position of the cylinder (4).
* To reduce the thread take-up amount, tighten the stopper (3).
* To increase the thread take-up amount, loosen the stopper (3).
Note:
If the stroke of the thread take-up lever (1) is shorter than necessary, the needle thread trailing length may become too
short and the thread may come out of the needle. Furthermore, if it is larger than necessary, the needle thread trailing
length may become too long and the underside of the article being sewn may become untidy.
3201Q
Thread take-up amount (stroke)
3203Q 3202Q
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