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Service Manual
SEC.20-2
Check the Knee Lifter (1)
3．The parts (E) and (F) can be tightened by screw (G) at the center of oblong hole. And
regarding the parts (F), keep tilling up about 10 degrees from a vertical line and tighten
two screws (H,J).
4. Adjust Cam (L) with two screws (K) so that the knee lifter may move about 15 degrees
as drawing 2 and uplift of presser foot may be 11 mm to 12 mm.
Original issue
May 2014
Page 45／64
Model
XL-420
| 45
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