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Service Manual
SEC.18-2
Ajustment of upper thread tension (2)
4. Fit the dial to knurled part after adjustment. It is needed to fit the dial at same position as it
used to be. Tighten screw with washer at the knurled part.
5. After adjustment, check to see if the tension is correctly set at the favorable setting.
B
S-position
Original issue
May 2014
Page 42／64
Model
XL-420
| 42
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