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12.
ADJUSTING THE UPPER THREAD TENSION
[Adjustment standard]
While displaying the test mode screen (Fig. 1), the tension is to be 52 to 62 cN (53 to 63 gf) when a schappe
(#60) thread is gently pulled with a tension gauge.
[Adjustment procedure]
1.
Enter the test mode. (Fig. 1)
2.
Press "25". (Fig. 2)
3.
Set the offset value to 0. (Fig. 2)
4.
Turn the power off.
5.
Enter the test mode again. (Fig. 1)
6.
With the screen as shown in Fig. 1, place the thread as shown in Fig. 3 and, after lowering the presser foot,
check that the tension (2) is within the following standard.
Thread used: schappe (#60)
Standard:
52 to 62 cN (53 to 63 gf)
If the tension is not within the standard, turn the adjusting nut (a) until the tension is within the standard.
NOTE :After adjusting, fix the adjusting nut with the screw lock.
7.
To finely adjust while sewing, after performing the above adjustment, enter the test mode, press "25" (Fig.
2), and press the S/S key while performing test sewing. (Fig. 4)
The tension can be finely adjusted from 18 to +8.
* The above 1 to 7 are performed before shipment from the factory.
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